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CAS-17_2018-17 821 CREEKWOOD DRIVEV— �l S c+eec 763 - 3.16 vKs�,�t 2Glb -�S _-- ----'-toll r Thomas J. Campbell* Roger N. Knutson Elliott B. Knetsch Joel J. Jamnik Andrea McDowell Poehler Soren M. Mattick Henry A. Schaeffer, III Alina Schwartz Shana N. Conklin Amy B. Schutt James J. Monge, III Jerome M. Porter David S. Kendall Matthew K. Brokl Kurt S. Fischer *Of Counsel Grand Oak Office Center 1 860 Blue Gentian Road Suite 290 Eagan, Minnesota 51121 Main: 651-432-5000 Fa :651-234-6217 vvxvv%.ck-law.cum CAMPBELL KNUTSON October 19, 2018 Ms. Jean Steckling City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 Re: Miscellaneous Recordings Dear Ms. Steckling: Please find enclosed, for the City's files, the following documents which have been recorded with Carver County: Variance 2018-17 recorded 10/04/18 as document number A668443; Resolution 2018-43 Vacating Public Drainage and Utility Easements / 765 and 775 Crossroads Court recorded 10/04/18 as document number A668442; Encroachment Agreement with Neil and Yvonne Kearney recorded 10/04/18 as document number A668445; Encroachment Agreement with Robert Anderson recorded 10/04/18 as document number A668444; and Encroachment Agreement with Antonio and Amy Fricano recorded 10/11/18 as document numbers A668774 and T207940. Thank you. Very truly yours, CAMPBELL KNUTSON Professional Association /jmo Enclosures 198094v1I SCANNED Document #: A668443 Date: 10-04-2018 Time: 11:18 AM Pages:2 Recording Fee: $46.00 Paid on 10-04-2018 County: Carver State: MN Requesting Party: CAMPBELL KNUfSON PA Kaaren Lewis County Recorder CITY OF CHANHASSEN CARVER COUNTY, MINNESOTA VARIANCE 2018-17 1. Permit. Subject to the terms and conditions set forth herein, the City of Chanhassen hereby grants the following variance: The Chanhassen City Council approves the placement of the pump line within the 50 -foot bluff setback area and 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area. 2. Pro . The variance is for a property situated in the City of Chanhassen, Carver County, Minnesota, and legally described as: The west 152.3 feet of the east 355.85 feet -of the north 286.0 feet of the south 572 feet of the Southeast Quarter of the Southeast Quarter (SE '/. of SE '/) of Section 26, Township 116, Range 23, Carver County, Minnesota. 3. Conditions. The variance approval is subject to the following conditions: 1. The applicant must apply for and receive all necessary permits from the relevant agencies. 2. The applicant shall work with city, county, and watershed staff to maximize the system's distance from the bluff, minimize its impact on the bluff, and avoid impacting the existing drainage swale. 3. The applicant shall minimize tree loss, and shall to the greatest extent possible avoid removing mature trees within 20 feet of the top of the bluff. 4. A new 1" = 20' scale survey showing the final location of the septic and pump tanks, pump line, mound, and drain field shall be provided as part of the permitting process. r V 5. The area around the septic system mounds shall be landscaped so as to minimize its visual impact. 4. Lapse. If within one (1) year of the issuance of this variance the allowed construction has not been substantially completed, this variance shall lapse. 18, 2018 (Lhn •w N3c {: SESOTA ) (ss COUNTY OF CARVER ) CITY OF CHANHASSEN AND: /WZ3 JA -- Todd- Todd Gerhardt, City Manager The foregoing instrument was acknowledged before me this' f day of*r rim r _, 2018 by Denny Laufenburger, Mayor and Todd Gerhardt, City Manager, of the City of Chanhassen, a Minnesota municipal corporation, on behalf of the corporation and pursuant to authority granted by its City Council. DRAFTED BY: City of Chanhassen 7700 Market Boulevard P.O. Box 147 Chanhassen, MN 55317 (952)227-1100 4��4NOT PUBLI W -"KM T. MEUWISSENotary Publb•Minrresota�pn'w'w E0 Jan 31.2020 PC W-1-7 CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION (APPROVAL) The application of Gene and Lois Sipprell for the installation of a septic system within the required bluff setback and impact zone on a property zoned A-2 - Planning Case 2018-17. On September 18, 2018, the Chanhassen Planning Commission, acting as the Board of Appeals and Adjustments, met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variance preceded by published and mailed notice. The Board of Appeals and Adjustments makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District A-2. 2. The property is guided in the Chanhassen Comprehensive Plan for Residential Low Density. 3. The legal description of the property is: The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572 feet of the Southeast Quarter of the Southeast Quarter (SE '/< of SE '/4) of Section 26, Township 116, Range 23, Carver County, Minnesota. 4. Variance Findings — Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. Finding: The intent of the city's bluff protection ordinance is to ensure that vegetation and soils located near and on bluffs are not distributed in a manner that has the potential to create erosive conditions or otherwise negatively impact the bluff. The city also requires septic systems to be setback from property lines and road right of ways in order to minimize the potential for these systems to negatively impact adjacent property owners or interfere with the installation of utilities or other features commonly found in right of ways. In this case, there are no adjacent residential properties and the street is a private one, so the there is less concern for waiving the required property line setbacks. By granting a variance to the property line setbacks, the required bluff setback variance is minimized and the septic system can be placed further away from the more sensitive portions of the bluff. SCANNED Granting a variance to allow a single-family home with no ability to hook up to municipal utilities to install a septic system is consistent with the comprehensive plan, and the proposed variance is in harmony with the intent of the zoning code. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. Finding: Due to the existence of bluffs on the property, the dimensions of the property, the placement of the house, nature of the contours, and characteristics of the soil, the septic system must be placed in the northeast corner of the property. This placement requires variances from the bluff setbacks, impact zone, and property line setbacks. City sewer and water will not be available for the property in the near future and a functioning septic system is required to have reasonable use of the property. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The variance request is not solely based upon economic considerations. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding: The lot is a non -conforming lot of record that was created before the existing district standards, bluff protection, and septic system ordinances were created. e. The variance, if granted, will not alter the essential character of the locality. Finding: Many components of the septic system would be located below grade and would not be expected to have any visual impact on the neighborhood. The applicant intends to install landscaping to minimize the visual impact of the above -grade portions of the system. The surrounding residential properties are also located on large lots and are served by septic systems. f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 216C.06, subdivision 14, when in harmony with this Chapter. Finding: This does not apply to this request. 5. The planning report #2018-17, dated September 18, 2018, prepared by MacKenzie Walters, is incorporated herein. RECOMMENDATION "The Chanhassen Board of Appeals and Adjustments recommends that the City Council approves the placement of the pump line within the 50 -foot bluff setback area and the 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval: 1. The applicant must apply for and receive all necessary permits from the relevant agencies. 2. The applicant shall work with city, county, and watershed staff to maximize the system's distance from the bluff, minimize its impact on the bluff, and avoid impacting the existing drainage swale. 3. The applicant shall minimize tree loss, and shall, to the greatest extent possible, avoid removing mature trees within 20 feet of the top of the bluff. 4. A new I" = 20' scale survey showing the final location of the septic and pump tanks, pump line, mound, and drain field shall be provided as part of the permitting process. 5. The area around the septic system mounds shall be landscaped so as to minimize its visual impact." ADOPTED by the Chanhassen Planning Commission this 18th day of September, 2018. CITY OF CHANHASSEN B Chairman CITY OF CHANHASSEN CARVER & HENNEPIN COUNTIES NOTICE OF PUBLIC HEARING PLANNING CASE NO. 2018-17 NOTICE IS HEREBY GIVEN that the Chanhassen Planning Commission will hold a public hearing on Tuesday, September 18, 2018 at 7:00 p.m. in the Council Chambers in Chanhassen City Hall, 7700 Market Blvd. The purpose of this hearing is to consider a variance application to install a septic system within the required Subsurface Sewer Treatment Systems setbacks, front yard setback, and bluff setback and impact zone located at 821 Creekwood Drive and zoned Agricultural Estate District (A2). Owner: Gene & Lois Sipprell. A plan showing the location of the proposal is available for public review on the city's web site at wwwci.chanhassen. mn.us/2018-17 or at City Hall during regular business hours. All interested persons are invited to attend this public hearing and express their opinions with respect to this proposal. MacKenzie Walters, Assistant Planner Email: mwalters@ ci.chanhassen.mn.us Phone: 952-227-1132 (Published in the Chanhassen Villager on Thursday, September 6, 2018; No. 9629) Affidavit of Publication Southwest Newspapers State of Minnesota) )SS. County of Carver ) Laurie A. Hartmann, being duly swom, on oath says that she is the publisher or the authorized agent of the publisher of the newspapers known as the Chaska Herald and the Chanhassen Vil- lager and has full knowledge of the facts herein stated as follows: (A) These newspapers have complied with the requirements constituting qualification as a legal newspaper, as provided by Minnesota Statute 331A.02, 331A.07, and other applicable laws, as amended. (B) The printed public notice that is attached to this Affidavit and identified as No.� was published on the date or dates and in the newspaper stated in the attached Notice and said Notice is hereby incorporated as part of this Affidavit. Said notice was cut from the columns of the newspaper specified. Printed below is a copy of the lower case alphabet from A to Z, both inclusive, and is hereby acknowledged as being the kind and size of type used in the composition and publication of the Notice: abcdefghijklmnopqrstuvwxyz Subscribed and swom before me on this to day of --x.2018 Public rByjflUW Laurie A. Hartmann IsJYMME JEANNETTE BARK NOTARY PUBLIC - MINNESOTA MY COMMISSION EXPIRES 01131)23 RATE INFORMATION Lowest classified rate paid by commercial users for comparable space.... $31.20 per column inch Maximum rate allowed by law for the above matter ................................ $31.20 per column inch Rate actually charged for the above matter .............................................. $12.97 per column inch SCANNED 'C Y � � - CITY OF CHANHASSEN PROPOSED MOTION: PC DATE: September 18, 2018 CC DATE: October 8, 2018 REVIEW DEADLINE: October 30, 2018 CASE #: 2018-17 BY: MW "The Chanhassen Planning Commission recommends that the City Council approve the placement of the pump line within the 50 -foot bluff setback area and 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval and adopts the attached Findings of Fact and Recommendation." (Note: A motion for denial and appropriate findings of fact are also included at the end of the report.) SUMMARY OF REQUEST: The applicant has an existing septic system that does not meet current standards and will need to be replaced within the next two years. The applicant is requesting a variance to place a mound septic system eight feet from the property lines and 15 feet from the top of the bluff, with new tanks replacing the existing tanks 20 feet from the top of the bluff and a pump line within the bluff setback and impact zone. The proposed septic system is being sized to accommodate the possible addition of a sixth bedroom to the existing five -bedroom house. A variance is required U_ cause Chapter 19 requires that septic systems be setback 10 feet from property lines and 50 feet from the top of the bluff, and Chapter 20 prohibits the removal or alteration of vegetation and grading within 20 feet from the top of a bluff. LOCATION: 821 Creekwood Drive (PID 250260900) APPLICANT: Gene and Lois Sipprell 821 Creekwood Drive Chanhassen, MN 55318 PRESENT ZONING: A-2 2030 LAND USE PLAN: Residential Low Density ACREAGE: 1 DENSITY: NA 22ANNED 821 Creekwood Drive Planning Case #2018-17 Page 2 LEVEL OF CITY DISCRETION IN DECISION-MAKING: The city's discretion in approving or denying a variance is limited to whether or not the proposed project meets the standards in the Zoning Ordinance for a variance. The city has a relatively high level of discretion with a variance because the applicant is seeking a deviation from established standards. This is a quasi-judicial decision. Notice of this public hearing has been mailed to all property owners within 500 feet- PROPOSAL/SUMMARY The applicants recently purchased this property. During the purchasing process, they were informed that the septic system was inadequate and would need to be replaced within the next two years. They also wish to size the system to accommodate a future sixth bedroom. Their septic system installer informed them that a double -mound system would be required and that due to the location of the house, well, and disturbed nature of the soils near the house, the septic system would need to be located within the 50 -foot bluff setback. The proposed septic system would be approximately eight feet from the property lines and 15 feet from the top of the bluff, with tanks located 20 feet from the top of the bluff. The pump line would be within five feet of the top of the bluff at its closest point. ,.ter R.vCci y� Mp►a 1 / � ivn Tdo T� E9v/C NN�iS / cA6tK 6,a- toy It' �•e� hi N A \ 1 R 5f° I v fJEct- pf '� 5°s� .4' nbnE .P' The septic installer has stated that the proposed tank and septic locations are required due to the location of the home's sewer line and existing tanks. Similarly, the location of the pump line is dictated by the location of the tanks and mound system. The installer is proposing locating the double -mound system in the northeast comer of the lot to maximize its distance from the bluff, and because it is the only area of the property that he believes has suitable contours and soils for the mounds. The installer has stated that there is not sufficient space on the property to accommodate the septic system outside of the 50 -foot bluff setback. 821 Creekwood Drive Planning Case #2018-17 Page 3 The applicant has stated that the requested variance is necessary to address the deficiencies of their existing septic system, and to allow for the addition of an additional bedroom on the property. APPLICABLE REGULATIONS Chapter 1 - General Provisions, Section 1-2, Rules of Construction and Definitions Chapter 19 - Water, Sewers and Sewage Disposal, Article IV, Subsurface Sewage Treatment Systems, Sec. 19-67, Amendments Chapter 20 - Zoning, Article II, Division 3, Variances Chapter 20 - Zoning, Article II, Division 4, Nonconforming Uses Chapter 20 - Zoning, Article X, "A-2" Agricultural Estate District Chapter 20 - Zoning, Article XXIII, Division, Sec. 20-906, Alternative Lot Size Requirements in A- 2 and RR Residential Zoning Districts Chapter 20 - Zoning, Article XXVIII, Bluff Protection, Sec. 20-1403, Removal or Alteration of Vegetation Chapter 20 - Zoning, Article XXVIII, Bluff Protection, Sec. 20-1404, Topographic Alterations/Grading and Filling Chapter 20 - Zoning, Article XXXI, Bluff Creek Overlay District, Sec. 20-1564, Structure Setbacks Note: Most of the applicable setback standards are located in Chapter 19; however, Chapter 19 does not have a specific variance procedure so the variance is being granted from the general zoning code using the procedure outlined in Chapter 20. BACKGROUND County records indicate that the home was built in 1975. On September 21, 1984, the city issued a permit for a 634 square foot addition. On October 14, 1991, the city passed ordinance number 152, which created the city's bluff protection ordinance. On August 22, 1994, the city expanded the bluff protection ordinance to cover the entire city. On December 14, 1998, the city passed ordinance number 286, which created the Bluff Creek Overlay District. On February 8, 1999, the city passed ordinance number 289, which governed the installation and maintenance of septic systems and established a 20 -foot bluff setback. On May 23, 2011, the city passed ordinance number 523, adopting Carver County Ordinance 67- 2010 by reference and establishing the current 50 -foot bluff setback for septic systems. 821 Creekwood Drive Planning Case #2018-17 Page 4 SITE CONDITIONS The property is zoned Agricultural Estate District (A-2) and contains a bluff. Portions of the site are also located near the Bluff Creek Overlay District. This zoning district requires lots to be a minimum of 2.5 acres, have front yard and rear setbacks of 50 feet, side yard setbacks of 10 feet, and limits parcels to a maximum of 20 percent (20%) lot coverage. Structures are required to be 30 feet or the existing distance from the top of the bluff, with no topographic or vegetative alterations permitted within 20 feet from the top of the bluff. Structures must also be setback 40 feet or the existing distance from the Bluff Creek primary zone and no site disturbances are permitted within the first 20 feet or first 50 percent (50%) of existing setback from the primary zone. Chapter 19 requires septic systems to be setback 50 feet from bluffs. The lot is a non -conforming, 43,600 square feet lot. The existing structure meets the front, rear, and side setbacks, with a deck encroaching approximately 10 feet into the 30 -foot bluff setback. The house appears to meet the 40 -foot setback from the Bluff Creek primary zone. The existing septic tanks are located approximately 20 feet from the top of the bluff. NEIGHBORHOOD Vogel Addition The property is an unplated lot near the Bluff Creek Golf Course and Vogel Addition. The property is accessed by Creekwood Drive, a private road serving the golf course and six residential properties. All of the residential properties are on septic and well. Municipal services are not expected to become available in the near future. Variances within 500 feet: 1985-03 - 815 Creekwood Drive: Denied - Minimum lot size for subdivision to create a 3.56 - acre lot and a I -acre lot; was subsequently litigated with settlement to create two lots with 2.28 acres each. 2010-05 - 845 Creekwood Drive: Approved - Retaining wall within bluff impact zone. 821 Creekwood Drive Planning Case #2018-17 Page 5 ANALYSIS Septic and Pump Tanks The applicant is proposing placing the septic and pump tanks behind the house, 20 feet from the top of the bluff. The applicant has stated that this location is necessitated by the placement of the home's existing sewer line and the elevation of the sewer pipe. The existing tanks are also located in this area. The r dl I A' /4,0 r, I' I If � ,sa' � 1>'• 1 / V o11 ocanon rs an a ready disturbed area of the site that would need to be further disturbed to fill the existing tanks. It is also outside of the 20 -foot Bluff Creek primary zone do not disturb area and 20 -foot bluff impact zone. Staff believes that the proposed location for this portion of the system is reasonable and should not significantly impact the bluff. For these reasons, staff recommends approval of the 30 -foot bluff setback variance for the septic and pump tanks. Pump Line The applicant's proposed location for the pump line is determined by the locations of the pump tank and the mound. The applicant has stated that physical features of the property prevent any alternative placement of the pump line. As the applicant has noted, the ultimate location of the pump line will be determined by the location of the tanks and the mound system. Since the location of the tanks is predetermined by the home's sewer line and the pump line's exit from the pump tank is dictated by the location of the house and deck, the location of this feature cannot be significantly altered. Since the pipe is entirely below ground, staff's largest concern would be the removal of Line vegetation, especially mature trees that would accompany its installation. The proposed location mostly avoids the woods, and staff encourages the applicant to take all possible steps to minimize tree loss associated with its installation. Staff believes that the proposed location of this portion of the system is necessary, and cannot be significantly improved upon. For these reasons, staff recommends approval of the variance from the 50 -foot bluff setback and 20 - foot bluff impact zone for the pump line. 821 Creekwood Drive Planning Case #2018-17 Page 6 Mound System The applicant has stated that the proposed location for the mound system, shown in green, is necessary due to the contours of the property. They have stated that state code requires a mound septic to be set on a contour for the length of its rock bed and that this consideration requires the double -mound system as well as the proposed placements of both mounds and their drain fields. The applicant's installer has indicated a strong preference for placing a mound system on an area with at least a 1-2% slope. Staff asked the applicant to address the possibility of installing a Type III septic system. The applicant's installer has indicated that the presence of disturbed soils in the middle of the yard makes it difficult to be certain that an installed system would perform adequately in that area. They have stated that disturbed soils, such as appear to be present in that area, have a higher chance of failing to accept effluent long term, of undertreating effluent, and of discharging untreated effluent. They note that the best soils with sufficient slope and contours are always the best choice for locating a septic system. In reviewing the proposed location for the double -mound system, staff was very concerned to notice that it is adjacent to a swale that handles a large amount of stormwater runoff from Bluff Creek Golf Course and directly discharges into Bluff Creek, a state classified impaired water. Staff also observed that a large head cut is present in this area and that it is actively eroding the bluff directly downstream from the proposed location. For these reasons, Water Resources is recommending denial of the variance request unless it can be demonstrated that no other location or system is feasible. Staff consulted with Carver County's Soil and Water Conservation District's Conservation Technician, Chip Hentges, regarding the proposed location of the double -mound portion of the system. He indicated that the largest concern from the County's perspective was that the proposed mound system stay clear of the drainage Swale located near the 928 contour. It is Conservation Technician Hentges' opinion that by grating 1 -foot lot line setbacks it should be possible to shift the system to the southeast so that the toe of the southern mound's sand is clear of the 30 -foot bluff setback indicated on the survey. YL 6 92)1 ' 9Pi suw F ] • 9UG \ , W / v. ozln I 909 ' \ I . {J � •11E9 ih Nr" • 926.! I Swa^. � l <-0361 OZ -1 •910) \9:c39292 ��6 9M3 • t f91 C � o'- � �' X919_: `�v uY- ________.. _"-------- ��- 7, .9]97 � i 821 Creekwood Drive Planning Case #2018-17 Page 7 He also notes that the rock bed locations should be able to work in their proposed areas. Building Inspector Tessman also reviewed the proposed septic system's location and design. He recommends that the mounds be pushed forward to within 1 foot of the property line and that the mound ratio be changed from 3:1 to 4:1. Both of these modifications would increase the distance from the toe of the proposed mound system to the top of the bluff. Based on these reviews and the importance of protecting Bluff Creek, staff is recommending that a 20 -foot bluff and 9 -foot property line setback variance be given for the mound portion of the system, rather than the 35 -foot bluff and 2 -foot property line setback variance the applicant is requesting. Impact on Neighborhood The largest impact on the neighborhood will be the loss of the wooded area in the northeast of the property. Most of the surrounding properties have heavily wooded yards; however, several other properties do have mostly open front yards. Many components of the septic system would be located below grade and would not be expected to have any visual impact on the neighborhood. The applicant intends to install landscaping to minimize the visual impact of the above -grade portions of the system. SUMMARY Staff believes that a variance is necessary to accommodate a new septic system; however, the bluff is already beginning to head cut and the removal of vegetation, disruption of soil, and other elements involved with septic systems could exacerbate the existing erosive issues. Staff believes that the septic system's design and location can be adjusted to provide for an increased distance between portions of the septic system and the bluff. Staff recommends that a modified version of the proposed variance, which allows the septic system to be located closer to the property lines but requires a larger bluff setback than the applicant is requesting, be approved. RECOMMENDATION Staff recommends that the Chanhassen Planning Commission recommend that the City Council approve the placement of the pump line within the 50 -foot bluff setback area and 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval and adopt the attached Findings of Fact and Recommendation: The applicant must apply for and receive all necessary permits from the relevant agencies. 821 Creekwood Drive Planning Case #2018-17 Page 8 2. The applicant shall work with city, county, and watershed staff to maximize the system's distance from the bluff, minimize its impact on the bluff, and avoid impacting the existing drainage swale. 3. The applicant shall minimize tree loss, and shall, to the greatest extent possible, avoid removing mature trees within 20 feet of the top of the bluff. 4. A new 1" = 20' scale survey showing the final location of the septic and pump tanks, pump line, mound, and drain field shall be provided as part of the permitting process. 5. The area around the septic system mounds shall be landscaped so as to minimize its visual impact. Should the Planning Commission recommend denying the variance request, it is recommended that the Planning Commission adopt the following motion and attached Findings of Fact and Decision: "The Chanhassen Board of Appeals and Adjustments recommends that the City Council deny the variance request to place a pump line within the bluff setback and impact zone, the 30 -foot bluff setback variance for the tanks, and the 35 -foot bluff setback variance and the 2 -foot property line setback variance for the mound system, and adopts the attached Findings of Fact and Decision." ATTACHMENTS 1. Findings of Fact and Recommendation Approval 2. Findings of Fact and Recommendation Denial 3. Development Review Application 4. Narrative 5. Certificate of Survey 6. Miscellaneous Septic Documents 7. MPCA Documents 8. HomeStead Septic Systems Response to Supplement Variance 9. WRC Memo on 821 Creekwood 10. Building Memo on 821 Creekwood 11. Environmental Resources Specialist Memo on 821 Creekwood 12. Public Hearing Notice Mailing List GAPLAN`Q018 Planning Cases\18-17 821 Creekwood Drive Variance\Staff'Rq*rt-821 Creekwoodrhive_PC.doc CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION (APPROVAL) IN RE: The application of Gene and Lois Sipprell for the installation of a septic system within the required bluff setback and impact zone on a property zoned A-2 - Planning Case 2018-17. On September 18, 2018, the Chanhassen Planning Commission, acting as the Board of Appeals and Adjustments, met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variance preceded by published and mailed notice. The Board of Appeals and Adjustments makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District A-2. 2. The property is guided in the Chanhassen Comprehensive Plan for Residential Low Density. 3. The legal description of the property is: The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572 feet of the Southeast Quarter of the Southeast Quarter (SE'/, of SE 'h) of Section 26, Township 116, Range 23, Carver County, Minnesota. 4. Variance Findings —Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. Finding: The intent of the city's bluff protection ordinance is to ensure that vegetation and soils located near and on bluffs are not distributed in a manner that has the potential to create erosive conditions or otherwise negatively impact the bluff. The city also requires septic systems to be setback from property lines and road right of ways in order to minimize the potential for these systems to negatively impact adjacent property owners or interfere with the installation of utilities or other features commonly found in right of ways. In this case, there are no adjacent residential properties and the street is a private one, so the there is less concern for waiving the required property line setbacks. By granting a variance to the property line setbacks, the required bluff setback variance is minimized and the septic system can be placed further away from the more sensitive portions of the bluff. Granting a variance to allow a single-family home with no ability to hook up to municipal utilities to install a septic system is consistent with the comprehensive plan, and the proposed variance is in harmony with the intent of the zoning code. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. Finding: Due to the existence of bluffs on the property, the dimensions of the property, the placement of the house, nature of the contours, and characteristics of the soil, the septic system must be placed in the northeast comer of the property. This placement requires variances from the bluff setbacks, impact zone, and property line setbacks. City sewer and water will not be available for the property in the near future and a functioning septic system is required to have reasonable use of the property. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The variance request is not solely based upon economic considerations. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding: The lot is a non -conforming lot of record that was created before the existing district standards, bluff protection, and septic system ordinances were created. e. The variance, if granted, will not alter the essential character of the locality. Finding: Many components of the septic system would be located below grade and would not be expected to have any visual impact on the neighborhood The applicant intends to install landscaping to minimize the visual impact of the above -grade portions of the system. The surrounding residential properties are also located on large lots and are served by septic systems. f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 216C.06, subdivision 14, when in harmony with this Chapter. Finding: This does not apply to this request. 5. The planning report #2018-17, dated September 18, 2018, prepared by MacKenzie Walters, is incorporated herein. RECOMMENDATION "The Chanhassen Board of Appeals and Adjustments recommends that the City Council approves the placement of the pump line within the 50 -foot bluff setback area and the 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval: 1. The applicant must apply for and receive all necessary permits from the relevant agencies. 2. The applicant shall work with city, county, and watershed staff to maximize the system's distance from the bluff, minimize its impact on the bluff, and avoid impacting the existing drainage swale. 3. The applicant shall minimize tree loss, and shall, to the greatest extent possible, avoid removing mature trees within 20 feet of the top of the bluff. 4. A new 1" = 20' scale survey showing the final location of the septic and pump tanks, pump line, mound, and drain field shall be provided as part of the permitting process. 5. The area around the septic system mounds shall be landscaped so as to minimize its visual impact." ADOPTED by the Chanhassen Planning Commission this 18th day of September, 2018. CITY OF CHANHASSEN 10M Chairman CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION (DENIAL) IN RE: The application of Gene and Lois Sipprell for the installation of a septic system within the required bluff setback and impact zone on a property zoned A-2 - Planning Case 2018-17. On September 18, 2018, the Chanhassen Planning Commission, acting as the Board of Appeals and Adjustments, met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variance preceded by published and mailed notice. The Board of Appeals and Adjustments makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District A-2. 2. The property is guided in the Chanhassen Comprehensive Plan for Residential Low Density. 3. The legal description of the property is: The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572 feet of the Southeast Quarter of the Southeast Quarter (SE '/< of SE 1/4) of Section 26, Township 116, Range 23, Carver County, Minnesota. 4. Variance Findings — Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. Finding: The intent of the city's bluff protection ordinance is to ensure that vegetation and soils located near and on bluffs are not distributed in a manner that has the potential to create erosive conditions or otherwise negatively impact the bluff. The bluff near the proposed location for the septic system is already subject to a large amount of runoff that has created a head cut which is actively eroding the bluff downstream from the proposed location. Furthermore, runoff from this area directly discharges into Bluff Creek, a state classified impaired water. It would not be in line with the intent of this Chapter to allow the removal of vegetation and disruption of soils that could exacerbate these issues. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. Finding: A type Ill septic system could be installed in the flat portion of the yard away from the top of the bluff. Since there is an alternative location for a septic system that meets city code, the applicant does not have a practical difficulty. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The variance request is not solely based upon economic considerations. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding: The lot is a non -conforming lot of record that was created before the existing district standards, bluff protection, and septic system ordinances were created. e. The variance, if granted, will not alter the essential character of the locality. Finding: The area where the applicant is proposing to install the septic system is heavily wooded and many mature trees would need to be removed. Most of the residential homes in the vicinity are setback within existing woods; removing these trees would noticeably alter the character of the neighborhood. f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 216C.06, subdivision 14, when in harmony with this Chapter. Finding: This does not apply to this request. 5. The planning report #2018-17, dated September 18, 2018, prepared by MacKenzie Walters, is incorporated herein. RECOMMENDATION "The Chanhassen Board of Appeals and Adjustments recommends that the City Council deny the variance request to place a pump line within the bluff setback and impact zone, the 30 - foot bluff setback variance for the tanks, and the 35 -foot bluff setback variance and 2 -foot property line setback variance for the mound system." ADOPTED by the Chanhassen Planning Commission this 18th day of September, 2018. CITY OF CHANHASSEN IV Chairman COMMUNITY DEVELOPMENT DEPARTMENT CITY OF CHANHASSEN Planning Division — 77(10 Market Boulevard Mailing Address — P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1300 / Fax: (952) 227-1110 APPLICATION FOR DEVELOPMENT REVIEW Submittal Date: g/21 -ole PC Date.9 1 j b ? 11 CC Datt 60 -Day Review Date 0 (b I (Refer to the appropriate Application Checklist for required submittal information that most accompany this application) ❑ Comprehensive Plan Amendment. .... . .. - $600 ❑ Subdivision (SUB) $300 ❑ Minor MUSA line for failing on-site sewers ..... $100 ❑ Create 3 lots or less ......................... ❑ Create over 3 lots .......................$600 + $15 per lot ❑ Conditional Use Permit (CUP) (_ lots) $300 E]Single- Family Residence................................$325 ❑ Metes & Bounds (2lots) .................................. ❑ All Others........ I ................................................$425 E] Consolidate Lots.............................................. $150 ❑ Lot Line Adjustment.........................................$150 ❑ Interim Use Permit (IUP)700 ❑ Final Plat..... ..................................................... ❑ In conjunction with Single -Family Residence..$325 (Includes $450 escrow for attorney costs)` ❑ All Others ......................................................... $425 •Additional escrow may be required for other applications through the development contract. ❑ Rezoning (REZ) ❑ Planned Unit Development (PUD) ..................$750 ❑ Vacation of Easements/Right-of-way (VAC)........ $300 E] Minor Amendment to existing PUD ................. $100 Addtbna recording lees may apply) ❑ All Others ........ ......... ................. .......... ............. $500 Variance (VAR)... ..... ......................................... ...$200 ❑ Sign Plan Review ................................................... $150❑'+ Wetland Alteration Permit (WAP) ❑ Single -Family Residence ............................... $150 ❑ Site Plan Review (SPR) ❑ All Others $275 ❑ Administrative ..................................................$100 ....................................................... ❑ CommercialAndustrial Districts'......................$500 ❑ Zoning Appeal...................................................... $100 Plus $10 per 1,000 square feet of building area: ( thousand square feet) ❑ Zoning Ordinance Amendment (ZOA)................. $500 'Include number of exist; employees: 'Include number of new employees. -- NOTE: When multiple applications are processed concurrently, ❑ Residential Districts ..... ___ ....._......._.._ _ $500 the approprfate fee shall be charged for each application. Plus $5 per dwelling unit (_ units) r Notification Sign (City to install and remove) ........... ............ $200 F-1Property Owners' List within 500' ICiry to generate aver preapplicationmeeting) ..••••••••(.......................................$3 per address addresses) Escrow for Recording Documents (check all that apply) ............................................... -... ... $50 per document ❑ Conditional Use Permit ❑ Interim Use Permit ❑ Site Plan Agreement ❑ Vacation Variance ❑ Wetland Alteration Permit ❑ Metes & Bounds Subdivision (3 docs) Easements ( easements) ❑ Deeds TOTAL FEE: Section 2: Required Information Description of Proposal: Property Address or Location: Z / C re e K Parcel #: Legal Description: Total Acreage: %. GC / 0e r-esVVetlands Present? Present Zoning: Select One Present Land Use Designation: Select One Existing Use of Property: : J Fn /,- .5 7-, ,- ❑Check box if separate narrative is attached. .57-, Zh19 'En ❑ Yes ❑ No ,,may /W/; - ere /; -e t /fMl n t- Requested Zoning: Select One Requested Land Use Designation: Select One a Section 3: Property Applicant Information APPLICANT OTHER THAN PROPERTY OWNER: In signing this application, I, as applicant, represent to have obtained authorization from the property owner to file this application. I agree to be bound by conditions of approval, subject only to the right to object at the hearings on the application or during the appeal period. If this application has not been signed by the property owner, I have attached separate documentation of full legal capacity to file the application. This application should be processed in my name and I am the party whom the City should contact regarding any matter pertaining to this application. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. I certify that the information and exhibits submitted are true and correct. Name: Contact: Address: Phone: City/Stateop: A Cell: Email: Fax: Signature: Date: PROPERTY OWNER: In signing this application, I, as property owner, have full legal capacity to, and hereby do, authorize the filing of this application. I understand that conditions of approval are binding and agree to be bound by those conditions, subject only to the right to object at the hearings or during the appeal periods. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. I certify that the information and exhibits submitted are true and correct. S' / LC Contact: -1:2mt Name: & eme r- Iii iL e - Address: g'a/ CrPCKwO4a( phyue--Ll// e 9sa-7g7- 10-27 City/Stat5 D: L"/.ys,(� mi✓/ SS3Y/p Cet1 la:f �ys� —Zo i- a S�S�G Email: 0, QY dMAI, Fa:- Signature: o Date: This application must be completed in full and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing this application, refer to the appropriate Application Checklist and confer with the Planning Department to determine the specific ordinance and applicable procedural requirements and fees. A determination of completeness of the application shall be made within 15 business days of application submittal. A written notice of application deficiencies shall be mailed to the applicant within 15 business days of application. PROJECT ENGINEER (if applicable) Name: t�& L>a le pClN 11Drr1 9t1od Contact: G {IfN! f Address: /r0e tlo/o(!l✓rrol L4N! Phone: City/State2lp: Cell: J2 Email:S!`/soK 4e /I/ Fax Section 4; Notification Information Who should receive copies of staff reports? 'Other Contact Information: Property Owner Via:Email L9 Mailed Paper Copy Name: ❑ Applicant Via: Email Mailed Paper Copy Address: Engineer Via: � Email Mailed Paper Copy City/State0p: Other' Via: Email Mailed Paper Copy Email: INSTRUCTIONS TO APPLICANT: Complete all necessary form fields, then select SAVE FORM to save a copy to your device. PRINT FOP.,' and deliver to city along with required documents and payment. SUBMIT FORM to send a digital copy to the city for processing. SAVE TONY PRINT FORM SUBINT FORA The Narrative for the 821 Creekwood Drive, Chaska, MN 55318 (Mailing Address) Submitted by homeowners: Gene and Lowie Sipprell August 20, 2018 On May 29, 2018, we purchased 821 Creekwood Drive as our primary residence. As part of the process we requested that the lot be surveyed, septic and water systems be tested. The results indicated the septic system was found to be inadequate to current standards and would need to be replaced within two years. As we inquired into this process we learned if we ever wanted to add another bedroom we would need to have a double mound system. We consulted septic system installer Dale Denn of Homestead Septic before the purchase of the home. He drew up two or three different double -mound systems providing a way for water movement across the property. In June, 2018, we met with the city representatives at the proposed new site for the septic system. They advised that the only location for a double mound system would be in the far north eastern corner of our lot and a variance would be needed to address the requirement setback to be 50 feet from the bluff. July, 2018, Sathr-Berquist, Inc of Wayzata completed two surveys: surface lot and bluff elevation. (See previously submitted documents) August, 2018, we met with the neighbors including Michael Cohrs, General Manager/Course Superintendent of Bluff Creek Golf course that adjoins our property. They are supportive of installing the new septic system. Our realtor, Rick Brama has advised us on a landscaper who could provide us with a beautiful design. Consequently, we are confident that we can install the required septic system and a beautiful landscaping area that will enhance our neighborhood. We look forward to answering any questions the city may have and moving forward so we can complete the septic system installation and landscaping this Fall. Thank you for your assistance. Sincerely, Rev. Dr. Gene Sipprell (952-797-2027) A '�'x i p 1it y5 p r i QS iEl ii p� j j N - 2 't 1 �i Ii )a; If ilia ilia j 1 w Q5 gg igl$�2EQri i Eil : [ ; fi4f 1 l 1 i •Y a )@Q"-11)))1111 fill 24s u ii Qt i i i55 ))E li #�+ 'itQ1 's i i QQCSQ^ �� E � 1 � ali ai1p9•` i)i � )�Ij { � � ( l � „ U I(jI ;! : 1i �) �l li� 1 ii � 1) i E � •' )1s )BEii)) pi)9 ;g i i (i l � 1El:s)191§6liilss;Si r _______—__—_ VZ i Z al off � 1 s 1 i e win i..ls.ceaexli � ,,, _5",�pi \ � . � �. i , - H � iii , a . ' C. a .•` f' _l 1, Q�i.a� ��•i i,� ---'.— , a i _ ( sf� `� @ ylaj.E °�7 �,�a �. K ° � .� "If—_—\•\ a Y- � i q; i ii Y4g° ) �7 - m i I i �€• I ;, HomeStead Septic System Services 1108 Goldenrod Lane Shakopee, MN 55379 MPCA Licensed #583 Dale Denn — Owner Cell Phone: 612-310-7887 Homesteadsepticnoutlook.com Septic System Variance: Property: 821 Creekwood Drive Chaska, MN 55318 A variance is needed that is within the 50 foot bluff setback ordinance. In general, there are three situations whereby components of the new Mound Septic System will be within 50 feet of the Bluff: 1. Septic and Pump Tanks 2. Pump line from pump tank to the Mound 3. The Mound The reasons for the variances is as follows: 1. Septic and Pump tanks have to be where they are as that is where the old tanks are thus the sewer line from the home comes out in that vicinity and the elevation of the sewer pipe dictates where tanks need to go. 2. The pump line from the pump tank thus has to start at the pump tank location and continue to the Mound. Physical features disallow any options to where the pump line can be run. 3. The Mound has been located where it is due to the fact that the soils in this area are un- disturbed, verses somewhat disturbed soils in the lawn area from initial construction. I know that large trees indicate the most natural soils. Secondly, the contours are ever so slightly undulating outside of where I set the Mound that is it difficult to set a Mound on a definite contour to meet the Septic Ordinance. Lastly, if all of the Mound has to be outside of the 50 foot bluff setback, there literally is not enough room to place any part of the septic system. By Dale Dern Omer ♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ Homestead Septic 1108 Goldenrod lane sr Shakopee, MN 55379 MPCA License #583 Cell: 612-310-7887 Email: Homesteadseptic@outlook.com ca Mound Septic Design DATE: 5/17/2018 A ♦ �- CLIENT: ♦ ♦ SITE: 821 Creekwood Drive Chaska, MN 55318 ♦ DESIGNER: Dale J Denn + Homestead Septic 1108 Goldenrod lane sr Shakopee, MN 55379 MPCA License #583 Cell: 612-310-7887 Email: Homesteadseptic@outlook.com ca For new construction lots, all septic sites shall be protected in the field with fencing/identification up to the time of installation. Existing home lots, do not disturb septic site and keep all heavy equipment and vehicles off of the site. Any trees that need removal must be done without rubber tired equipment, ie, track machines to avoid soil compaction and undue disturbance. Cut tree trucks as close to surface as possible and leave stumps intact, do not excavate. Grinding is ok with a portable grinder. Contact Dale Denn with any questions, comments, or concerns about this Septic Site. This Cover Page with Designer Signature, electronic or otherwise, hereby certifies that I have completed this septic design in accordance with all applicable State Septic Rules. Local rules may vary from State Rules. Installer to verify all aspects of applicable Local Rules and setbacks that may be more restrictive than State Rules. Local Units of Governments are required to publish any rule or portion thereof that differs from State Rules. Consult with Local Unit of Government. DFSIG\I:R k SIGNATURE \IP( A ( ERI n ♦i♦♦oee♦eeeeo♦+e♦e♦eee♦e♦e♦♦eee♦ooeeeee♦♦ecce♦ ♦ ♦ �p 821 Creekwood Drive o ♦ Design Notes: ♦ ♦ ♦ System is for a 6 bedroom Home. Soils only accommodate a Pressurized Mound Septic. Mound is + ♦ split into two equal units on account of slope, short contours, drainage Swale, and bluff line. ♦ Each Mound halve will have the sandbed and laterals at the same elevation based on sandbed elevation of Unit 1. End feed from pump each unit, essentially center feeding Mound as single unit. + Finish Mound as one unit and build saddle to divert all rain and snow melt. + Pump station is designed for a dual pump arrangement with an alternating dose panel. Each + Mound half will have its own pump and be controlled by the dosing panel. Use either a dual + <• pump line, one for each mound half, or a single pump line with Check Valves properly installed ♦ off of each pump. Calculate flow for each pump based on one half of total flow plus drainback. + See design and pump pages. + + Install pump line deep as possible and reverse pitch pump line so that all portions of pump line �► drain back into pump tank. + •+ Pump and fill old septic tanks. + ® • Tree and brush removal necessary with some large trees to be removed. Cut stumps close to ground as possible and leave stumps intact. Only track machine shall be used in tree removal + ♦ ♦ process to protect soils from undue disturbance and compaction. + ♦ Tight access for septic tank truck. Tree trimming required on residence trees and neighbors trees. 4' Variances to bluff for septic and pump tank, and for unit 1 of Mound may be necessary from City. a ♦ i Bluff line approximated and not set officially by elevation or sun eyor. Surveying and plotting of all septic tanks, pump tanks, sewer lines, and both rock and sandbed absorption units suggested to ascertain all setbacks to property lines and bluff. Preliminary Evaluation Worksheet 1. Contact Information v 04.17.2018 Property Owner/ Client: Date: 5/23/2018 Site Address:1 821 Creekwood Drive. Chaska Project ID:�� Email: Phone —� Mailing Address: Legal Description: Parcel ID:1 Latitude: Longitude: 2. Flow and General System Information A. Client -Provided Information Project Type: New Construction Replacement Expansion Repair Project Use: Residential Other Establishment: Residential use: fBedrooms: 6 Dwelling Sq.ft.: ==Unfinished Sq. FL:I ! Adults: a Children:= t Teenagers: In-home business 1Y/N1: No If yes, describe: Ga,bage Disposal/Grinder Dishwasher HotTub* Water -using devices: Sewage pump in basement water Softener' Sump Pump' (check all that apply) Large Bathtub >40 gallons Iron filter' Self-cleaning Humidihei' Clothes washing Machine High Eff. Furnace' Other: Clear water source - should not go into system Additional current or future uses: None Anticipated non-domestic waste: None The above is complete & accurate: Client signature It date B. Designer -determined flow Information Attach additional information as necessary. Design Flow: 900 GPD Anticipated Waste Type: Residential BOD:mg/L TSS:F----]mg1L Oil & Grease: r =mg/L 3. Preliminary Site Information A. Well information Describe all wells within 100of proposed SSTS: attach additional information if required. Well Depth Casing Confining 9 Description Mn. ID, (ft.) Depth (ft. l Layer Setback Source 1 Deep 50 50 2 3 Additional Well, Information: 1� N 1 ¢,d i C - t . �T- ocli low MW440 sA417- Two CS��sL un1iT5 AS,I L I ✓C .L,. 1 1 I \ Preliminary Evaluation Worksheet Site within 200of noncommunity transient well (Y/N) no Site within a drinking water supply management area (Y/N) No Site in a inner wellhead management zone JY/N) No Buried water supply pipes 50 ft of proposed system (Y/N) No B. Site located in a shoreland district/area? Classification: C. Site located in a floodplain? No Tank Setback: 50 ft. No Yes, source: Yes, source: Yes, source: Yes, name: STA Setbk.: 50 ft. Yes, Elevation of ordinary high water level: NA ft Floodplain designation I elevation (IOYR): NA ft Floodplain designation /elevation (100YR): NA ft D. Property Line Id / Source: Owner Survey County GIS Piat Map E. ID distance of relevant setbacks on map: water Easements Wel (s) Building(s) Property lines OHWL 4, Preliminary Soil Profile Information From Web Soil Survey (attach map Et description) Type(s): Source:�� Source: Source: ^ Other: L Other: Bluff Map Units: 4 Slope Ranger List landforms: upland plain Landform position(s):1 Backi Side Slope Parent materials: Till Depth to Bedrock/ Restrictive Feature: 28 in Depth to Watertable: 28 in Septic Tank Absorption Field- At -grade: Map Unit Ratings Septic Tank Absorption Field- Mound: Septic Tank Absorption Field- Trench: 5. Local Government Unit Information Name of LGU: Carver County LGU Contact: 952-361-1820 LGU-specific setbacks: More restrictive - varify LGU-specific design requirements: More restrictive - large septic tank sizing LGU-specific installation requirements: Same as 7080 Sol map- alvei Courcy M�unesda r. K.-iJi e:i n 1 1 �• • .. Kea` A® <LV 48 C. � MDS[ae: I:IIX�IInBMMI�artl�P`{tl'rB519M. a� N 0 BS 9 teB - tb A, R s ,m >m m MtaPp]lG`:\�MR'3u CTe+®rlrLa NKaa1 faF ru:llMlmel`T HYgi NBluml Reaoureef, N!0 SOI Survey Oonservation Service NaiefUl CMWMIP a Soil Surrey 5272018 Cage t of 3 Map unit Description: Lester -Kilkenny foams 2 to 6 percent slopes eroded --Carver County Minnesota Carver County, Minnesota KB2—Lester-Kilkenny loams, 2 to 6 percent slopes, eroded Map Unit Setting National map unit symbol f9j2 Elevation: 700 to 1 600 feet Mean annual precipitation. 23 to 35 inches Mean annual air temperature 43 to 50 degrees F Frost -free pend 155 to 200 days Farmland classification: All areas are prime farmland Map Unit Composition Lester. eroded. and similar soils- 60 percent Kilkenny eroded, and similar soils 40 percent Estimates are based on observations. descriptions. and transects of the mapunit. Description of Lester, Eroded Setting Landform: Moraines Landform position (two-dimensional): Backslope Down-slope shape. Linear Across -slope shape. Linear Parent material. Till Typical profile Ap - 0 to 8 inches loam Bt - 8 to 35 inchesclay loam Bk - 35 to 58 inches: loam C - 58 to 80 inches: loam Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature More than 80 inches Natural drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat). Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 43 Inches Frequency of flooding None Frequency of ponding None Calcium carbonate maximum in profile. 25 percent Gypsum. maximum in profile 1 percent Available water storage in profile High (about 10.5 inches) Interpretive groups Land capability classification (irrigated) None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group B Ecologica/site Loamy Upland Savannas (Rl03XY02OMN) Forage suitability group: Sloping Upland. Acid (G103XS006MN) Natural Resources Web Soil Survey 5/23/2018 Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Lester -Kilkenny loams. 2 to 6 percent slopes. eroded—Carer County. Minnesota Hydric soil rating No Description of Kilkenny, Eroded Setting Landform: Moraines Landform position (two-dimensional): Backslope Down-slope shape: Linear Across -slope shape: Linear Parent material Till Typical profile Ap - 0 to 11 inches loam Bt - 11 to 35 inches: clay loam 2Bk.2C - 35 to 60 inches ioam Properties and qualities Slope: 2 to 6 percent Depth to restrictive feature: More than 80 inches Natural drainage class Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 20 inches Frequency of flooding. None Frequency of ponding None Calcium carbonate. maximum in profile: 20 percent Gypsum. maximum in profile. 1 percent Available water storage in profile: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated) 2e Hydrologic Soil Group CID Ecological site: Clayey Upland Forests (F103XY026MN) Forage suitability group: Sloping Upland, Acid (G103XS006MN) Hydric soil rating. No Data Source Information Sod Survey Area. Carver County Minnesota Survey Area Data Version 14. Oct 4. 2017 Natural Resources Web Soil Survey 5/23/2018 Conservation Service National Cnopera:ive Soil Survey Page 2 of 2 Field Evaluation Worksheet 1. Project Information v 04.17.2018 Property Owner/Client: Project ID:� 2. Utility and Structure Information —� Utility Locations Identified Gopher State One Call : I I Any Private Utilities: � Locate and Verify (see Site Evaluation map ) Existing BuildingsImprovements Easements Setbacks 3. Site Information Vegetation type(s): Woods and lawn Percent slope: � , Slope direction: East Slope shape: Linear, Linear Landscape position: Shoulder Describe the flooding or run-on potential of sitef Build saddle upstope of Mound to divert gain and snow melt. Describe the need for Type III or Type IV system: Note: Elevations and Benchmarks identified on map? (Y/N): yes Proposed soil treatment area protected? (Y/N): Yes If yes, describe: 4. General Soils Information Original Soils IY/N): Yes If no, describe: Fitted, compacted, disturbed areas WN): No If yes, describe: Soil observations were conducted in the proposed system location (Y/N): Yes A soil observation in the most limiting area of the proposed system (Y/N): Yes Number of soil observations: �.J Soil observation logs attached (Y/N): Yes Percolation tests performed 8 attached JY/N): Yes 5. Phase I. Reporting Information Depth Elevation Periodically saturated soil: 28 in 95.2 ft Soil Texture: clay loam Standing water: in ft Percolation Rate: 28.00 min/inch Bedrock: in ft Soil Hyd. Loading Rate: 0.45 gpd/ft2 Required separation: 36 in Contour Loading Rate: 12 gpd/ft Max depth of system: in Floodplain Elev.110 yr): NA feet Floodplain Elev.1100 yr): NA feet Differences between soil survey and field evaluation: Site evaluation issues / comments: Anticipated construction issues: — ' Percolation Test Data Project ID Test hole: #1 Location: P1 Depth—: 12 inches description: Elevation: 95.75 feet Soil texture Depth (in) Soil Texture 12 in. for mounds & at - 0 -12 Loam grades, depth of absorption area for trenches and beds Start Reading End Reading Perc rate a Difference pass Reading Start Time End Time (in) n) mpg) Last 3 Rates 1 11:00 AM 11:20 AM 8.0 7.2 25.0 NA NA 2 11:23 AM 11:44 AM 8.0 7.2 24.7 NA NA 3 11:50 AM 12:10 PM 8.0 7.1 23.3 7.0 Yes 4 Chosen Percolation Rate for Test Hole s1 25.0 mpi Test hole: #2 Location: p2 Depth`*: 2 inches Elevation: 97.5 feet Soil texture description: Depth (in) Soil Texture 12 in. far mounds & at - 0 -12 loam grades. depth of absorption area for trenches and beds Start Reading End Reading Perc rate %Difference Pass Reading Start Time End Time lin) linl Impil Last 3 Rates 1 11:05 AM 11:25 AM 8.0 7.3 28.2 NA NA 2 11:30 AM 11:50 AM 8.0 7.3 27.0 NA NA 3 11:55 AM 12:15 PM 8.0 7.2 26.3 6.6 Yes 4 Chosen Percolation Rate for Test Hole #2 28.0 mpi Percolation Test Data 1. Contact Information Project ID v 04.17.2018 Property Owner/Client: 2. General Percolation Information Diameterin Date prepared and/or soaked: 5/23. t8 Method of scratching sidewall- Nail in board Is pre-soak required'? Yes If No, low long for 12' to soak away min Soak' end Soak' start time: 12:00 PM time: 4:00 PM 4:00 hrs of soak Method to maintain 12 in of water during soak large bins and siphon hose ' Not required in fast pet c soils 3. Summary of Percolation Test Data Design Percolation Rate (maximum of all tests attached) = 28.00 mpi Additional Perc. Test Data H Project ID'. Test hole: #3 Location: p3 Depth": 72 inches Soil texture description: Elevation: 93.75 feet Depth (in) Soil Texture " 12 in. for mounds 8 at - 0 -12 loam grades. depth of absorption area for trenches and beds Sart Reading End Reading Perc rate ;Difference pass Reading Start Time End Time (in) (in) (mpi) Last 3 Rates 1 11:10 AM 11:30 AM 8.0 6.8 16.7 NA NA 2 11:35 AM 11:55 AM 8.0 6.9 18.2 NA NA 3 12:03 PM 12:23 PM 8.0 6.8 16.7 8.3 Yes 4 i I r Chosen Percolation Rate for Test Hole r3 18.0 mpi Test hole: #4 Location: Depth": inches Soil texture description: Elevation: feet Depth (in) Soil Texture " 12 in. for mounds It at - grades, depth of absorption area for trenches and beds Start Reading End Reading Perc rate °.Difference pass Reading Start Time End Time (in) n) (mpil Last 3 Rates 1 NA NA 2 NA NA 3 Chosen Percolation Rate for Test Hole4 mpi Soil Observation Log Project ID: v 04.17.2018 Client: Location / Adtlress: Soil parent material(s): (Check all that apply) o„am:n Lass Tai Amok, eec.ak o4anx nt str Landscape Position: lcheck one) 5annnit Sb1O14d'* aa,kl5we Shoo Foot Slope T. Sint, Slope shape Linear, Linear Vegetation: trees and grass bit survey map units: fester killkenny Slope %: 3.0 Elevation: 45.75 Weather Conditions/Time of Day: am clear to partly coludy Date D5/23/18 Observation #/Location- 81 Observation Type: Probe Depth lin) Texture RockMatrix Frog. % Colortsl MottleColons) Redox gindls) Indkatorls) I—'—'-' Structure -----------1 Shape Grade Consistence 1DYR 2/1 08 Loam <35% Granular Friable Moderate 10YR 3/2 814 loam <35% 14-22 Clay Loam <35% 10yr 33 Granular Stocky Friable Moderate Moderate Firm 22-36 Clay Loam <35% 1M414 Blocky Moderate Firm Comments Redox at 28- I hereby certify that I have completed this work in accordance with all applicable Ordinances, rules and laws. Dale Denn 583 (Desi nen/Inspector) (Signature) Licensee 5123/2018 eDa[e1 Sail Observation Log Project ID: v 04.17.2018 Client: I I Location / Address: Soil parent materialist: (Check all that apply) ouMasn tams uxK Ta wu.unr avvoct oryanc wan. Landscape Position: (check one) 5ummt sn.al. 9abJ5de sbpe ra4t saoe T�gEctLuro5p Lineal. Linear Soil survey map units: tester Slolevation Ifq: 93.75 vegetation: all land Weather Conditions/Time of Day: am partly cloudy 05/23/18 B3 Probe Observation N/Location: ------ Structure-----------1Depth On) Texture Rock Matrix Coloqs) Mottle Colorist Redox Kindls)'MiraGrade Consistence Frag. % Friable 10YR 211 Granular Moderate 0-B loam '35% Friable 1OYR 312 Granular Moderate g -1q Loam =35% 10yr 312 10yr 314 Firm Blocky Moderate 1422 Clay Loam =35% Firm U rr 4/4 Blocky Moderate 22-36 Clay Loam =35% Comments ReDox G 29 Additional Soil Observation Logs Pro)--" ID; Client Location / Address: Soil parent material(s): (Check all that apply) anH'mh Ixu9rne Lops TYI Akmu Boor Orgadc Harter Landscape Position:(Chock met 4.mn sbmdd Rckt oSlope rad soce roe slooa Slope shape Linear. Linear Vegetation: trees and grasses Soil survey map units: I Lester Slope %: 3.0 Elevation: 97.5 Weather Conditions/Time of Day: am partly cloudy Date: 05/23/18 82 Observation Type: Probe 2 %Matrix 8 Color@I Mottle Cotorls) Redox Kind(5) Lndkator(s)1------ Structure ----------I Shape Grade Consistenc10YR .35: r 2/1 Gramdar Friable Moderatet0YR 35A 3/2 Granular Friable Moderate 1442 Clay Loam •354 10yr 3/3 &«ky Firm Moderate 22-36 Clay Loam .354 Illiff 4/4 Blocky Moderate Firm Comments ReOox t� 30 Design Summary Page 1. PROJECT INFORMATION v 04.17.2018 Property Owner/Ciient: Project ID:�� Site AddreSS:1 Email Address: Date: 5!2212018 Phone: 821 Creekwood Drive, Chaska I 2. DESIGN FLOW & WASTE STRENGTH Attach data i estimate basis for Ocher Establishments Design Flow: 900 GPD Anticipated Waste Type: Residential BOD: ==mg/L TSS: mg/L Oil & Grease:mg/L Treatment Level:Select Treatment Level C for residential septic tank effluent 3. HOLDING TANK SIZING Minimum Capacity: Residential -400 gal/bedroom, Other Establishment = Design Flow z 5.0. Minimum size 1D00 gallons Code Minimum Holding Tank Capacity:Gallons in =Tanks or Compartments Recommended Holding Tank Capacity: = Gallons in �Tanks or Compartments Type of High Level Alarm: ISet @ 75% tank capacity) Comments: 4. SEPTIC TANK SIZING ------- ---------------------------------- Residential dwellings: Number of Bedrooms (Residential(: Code Minimum Septic Tank Capacity: 3000 Gallons in �Tanks or Compartments Recommended Septic Tank Capacity: 3000 Gallons in Tanks or Compartments Effluent Screen & Alarm (Y/Ni: F No Modet/Type: -'--------------------'-"--'----'--'--'----'--'-------------------------------------------------------------' B. Other Establishments: Waste received by:� GPD x Days Hyd. Retention Time = Code Minimum Septic Tank Capacity:Gallons In Tanks or Compartments Recommended Septic Tank Capacity:Gallons In Tanks or Compartments Effluent Screen & Atarm (Y/N):Model/Type: --------------------- ---------------------------------...--------------------- -------------------------------------------------' 5. PUMP TANK SIZING Pump Tank 1 Capacity (Minimum): 1500 Gal Pump Tank 2 Capacity IMinimum):Gat Pump Tank 1 Capacity (Recommended):Gat Pump 1 29.0 GPM Total Head 27.4 ft Supply Pipe uia. EEin Uose Vol: 224.0 gai •. Pump Tank 2 Capacity (Recommended): Cal. Pump 2GPM Total Headft Supply Pipe Dia.� Dose Vol-- Gat Design Summary Page o. SYS I EM AND DISTRIBUTION TYPE Project ID: Soil Treatment Type: Mound Distribution Type: Pressure Distribution -Level Elevation Benchmark: 100 ft Benchmark Location: top of block, garage @ 100 MPCA System Type: Type I Distribution Media: Rock Type III/IV Details: 7. SITE EVALUATION SUMMARY: — — — — --------....--- . ----- Describe Limiting Condition: FSeasonat water table at 28' Depth Elevation Limiting Condition: 28 inches 1 2.3 Ift 1 95.2 ft Minimum Req'd Separation: 36 inches 3.0 Ift Critical for system compliance Code Max System Depth: Mound inches 98.2 ft ----------------------------------------------------------------- -------------' Soil Texture: clay loam Layers with >35% Rock Fragments? (yes/no) No Percolation Rate: 28.00 MPI If yes, describe below: % rock and layer thickness, amount of soil credit and any additional information for Soil Hyd. Loading Rate: 0.45 GPD/ft1 addressing the rock fragments in this design. Contour Loading Rate: 12 Note: Measured Land Slope: 3.0 , Note: Comments: FSplit system in 1; 2 for fit, with Laterals at same elevations, center feed pump line. 8. SOIL TREATMENT AREA DESIGN SUMMARY Trench: Dispersal Areaft' Sidewatt Depthin Trench Width�ft Total Lineal Feetft No. of Trenches Code Max. Trench Depthin Contour Loading Rateft Min. Lengthft Designed Trench Depthin Bed: Dispersal Areaft` Sidewall Depthin Maximum Bed Depthin Bed Widthft Bed Lengthft Designed Bed Depthin IMound: Dispersal Area 750.0 ft Bed Length 125.0 ft Bed Width 6.0 ft Absorption Width 15.6 ft Clean Sand Lift i.0 It Berm Width (0-19o)ft Upslope Berm Width 9.8 ft Downslope Berm 3.6 ft Endstope Berm Width 11.7 ft Total System Length EIEIft System Width 29.4 ft Contour Loading Rate 7.2 .;nun Design Summary Page V VV` Bed Widthft Bed Lengthft Finished HeightIt Contour Loading Rategal/ft Upslope BermIt Downslope Berm It Endslope Berm==ft System Lengthft System Width It Levelly Equal Pressure Distribution No. of Laterals 3 Perforation Spacingft Perforation Diameter 1 /4 in Lateral Diameter 1.50 in Min Dose Volume 48 gat Max Dose Volume 225 gat Non -Level and Unequal Pressure Distribution Lateral t Lateral 2 Lateral 3 Lateral 4 Lateral 5 Lateral 6 Elevation (ft) Pipe Size (m Pipe Volumei (gal/ft) Pipe Length If t) Perf Size (in) Spacing iftl Spacing lint i i I i Additional Info for At -Risk, HSW or Type IV Design A. Starting BOD Concentration = Design Flow X Starting BOD (mg/L) X 8.35 =. 1,000.000 7__�gpd X mg/L X 8.35 : 1,000,00, = tbs. BOD/day Minimum Dose Volume Gat Maximum Dose Volume C�gat B. Target BOD Concentration = Design Flow X Target BOD (mg/L) X 8.35 a 1.000,000 �gpd X mg/L X 8.35 a 1,000,001 = lbs. BOD/day Lbs. BOD To Be Removed: PreTreatment Technology: Must Meet or Exceed Target Disinfection Technology: -Required for Levels A Ft B C. Organic Loading to Soil Treatment Area: �mg/L X gpd x 8.35'. 1,000.000 ft' _ =lbs./day/fY 10. Comments/Special Design Considerations: i hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Date Denn 583 5/8/2018 (Designer) (Signature) (License #1 (Date) Mound Materials Worksheet T v 04.17.2018 A. Rock Volume: (Rock Below Pipe + Rock to cover pipe (pipe outside dio + -2 inch)) X Bed Length X Bed Width = Volume in + I 3-)) -- 12 125.0 ft X 6.0 ft = 562.5 ft' Divide ft3 by 27 ft'/yd] to calculate cubic yards: 562.5 ft3 + 27 = 20.8 yd Add 30% for constructability: 20.8 yd X 1.3 = 27.1 yd3 B. Calculate Clean Sand Volume: Volume Under Rock bed: Average Sand Depth x Media Width x Media Length = cubic feet 0.8 ft X 6.0 ft X 125.0 ft =F --6-3-o. _6__j ft For a Mound on a slope from 0-1% Volume from Length = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Length) �_�ft 1) X X ft = I Volume from Width = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Width) ft 1) X E X ft = Total Clean Sand Volume: Volume from length + Volume from Width + Volume Under Media O ft3 + ft3 + � it, = Oft3 For a Mound on a slope greater than 1% Upslope Volume: (lUpslope Mound Height - 1) x 3 x Bed Length) = 2 = cubic feet (( 2.8 ft - 1) X 3.0 ft X F 125.0 ) -2= 328.1 ft3 Downslope Volume: ((Downslope Height - 1) x Downslope Absorption Width x Media Length) + 2 = cubic feet ft - 1) X 9.6 ft X 125.0 ) + 2 = 1158.0 ft3 Endslope Volume: (Downslope Mound Height - 1) x 3 x Media Width = cubic feet ( 2.9 ft - 1 ) X 3.0 ft X 6.0 ft = 34.7 ft3 Total Clean Sand Volume: Upslope Volume + Downslope Volume + Endslope Volume + Volume Under Media 328.1 ft3 + 1158.0 ft + F 34.7 1ft3 + 630.0 ft3 = 2150.9 ft3 uwrde ft by 27 ft'/yd' to calculate cubic yards: 2150.9 ft3 + 27 = 79,7 yd3 Add 30% for constructabitity: 79.7 yd3 X 1.3 = 103.6 yd3 C. Calculate Sandy Berm Volume: Total Berm Volume (opprox) : ((Avg. Mound Height - 0.5 ft topsoil) x Mound Width x Mound Length) + 2 1 2.8 0.5 )ft X 29.4 ft X 148.4 ) + 2=F 5109.1 ft3 Total Mound Volume - Clean Sand volume -Rock Volume = cubic feet 5109.1 ft3_ 2150.9 ft3 - 562.5 ft3 = 2395.7 ft3 Divide ft3 by 27 ft3 /yd' to calculate cubic yards: 2395.7 ft + 27 88.7 yd! Add 30% for constructability: 88.7 yd' x 1.2 = 115.3 yd3 D. Calculate Topsoil Moterial Volume: Total Mound Width X Total Mound Length X .5 ft 29A ft X 148.4 ft X 0.5 ft = 2183.4 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 2183.4 ft3 a 27 = 80.9 yd3 Add 30% for constructability: 80.9 yd' x 1.3 = 105.1 yd3 Basic Pump Selection Design Worksheet t. PUMP CAPACITY Project ID: v 04.17.20181 Pumping to Gravity or Pressure Distribution: Pressure 1. It pumping to gravity enter the gallon per minute of the pump: C�GPM 00 45 gpm) 2. It pumping to a pressurized cintribunon system: 29.0 GPM 3. Enter pump description: Demand Dosing 2. HEAD REQUIREMENTS - - i`. A. Elevation Difference 16 it between pump and point of discharge: - B. Distribution Head Loss: it C. Additional Head Loss: ft idle to special eauip"M etc.[ Table :.Friction Loss in Plastic Pipe per 1 00f Di rtribution Head Loss _ - C,i.r•LLv Vi•snl,utinn nn Pt , -[list, ihutl•:r..uf .,n A:unuuuu:\vw.a,-•[Went - -= va..r•,�rt vr nn i't!•scw .,• V-st. d-•u[ion •.:r.,zr 6�I t�•a •t' _ _-. ..- MuvnunsAvera a Head Oistributioo Head Loss _ .. _. I M t ._ D. 1. Supply Pipe Diameter: 2.0 in - - 2. Supply Pipe Length: 230 It E. Friction Loss in Plastic Pipe per 100ft from Table is Friction Loss - 2.23 it per 10011 of pipe F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge - point. Estimate by adding 25'. to suppty pipe length for fitting loss. Supply Pipe Length iD.1) X 1.25 = Equivaent Pipe Length 230 it X 1.25 - 287.5 it G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Line E) by the Equivalent Pipe Length 1L1ne F) and divide by 100. Supply Friction Loss . 2.23 ft per looft X 287.5 ft - 100 H. Total Head requirement is the sum of the Elevation Difference fLine A). the Distribution Head Loss (Line B). Additional Head Loss (Line Q. and the Supply Friction Loss (Line G 1 16A ft - 5.0 ft - E:::=ft . 6.4 ft - 27.4 ft 3. PUMP SELECTION A pump must be selected to deliver at least 29.0 GPM 11 -me 1 or Line 2) with at least 27,4 feet of total head. Comments: Pressure Distribution MINNESOTA POLLUTION Design Worksheet CONTROL AGENCY ( Project ID: v 04.17.201B 1. Media Bed Width: 10 ft 2. Minimum Number of Laterals in system/zone = Rounded up number of [(Media Bed Width - 4) + 3) + 1 U 10 •4)+3J+1= 3. Designer Selected Number of Laterals: Cannot be less than line 1 (accent In at -grades) 4. Select Perforation Spacing: 5. Select Perforation Diameter Size: 6. Length of Laterals = Media Bed Length - 2 Feet. laterals Does Does not apply to ot-grades laterals 3.0 ft T 1/4 in — 38 2ft = 36 ft Perforation can not be closer then 1 foo[ from edge. 7 Determine the Number of Perforation Spaces. Divide the Length of Laterals by the Perforation Spacing and round down to the nearest whole number. Number of Perforation Spaces 36 ft - �ft 12 Spaces Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces. Check table 8. below to verify the number of perforations per lateral guarantees less than a 10% discharge variation. The value is double with a center manifold. Perforations Per Lateral 12 Spaces + 1 = F-13 --�oArsc 13 .I=.—1 >• rotal Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of Perforated Laterals. 13 Perf. Per Lat. X ��Number of Perf. Lat. = 39 Total Number of Perf. 10. Select Type of Manifold Connection (End or Center): End 11. Select Lateral Diameter (See Table) : t.50 in &Kk en Nmlber of Perfantions Per Lateral to Guarantee c 10% D'adwp Vniatim ' /,1 P orations 7132 Inch Perforatiom (Feet) �� DianxNer (Indies) Perforation Spadrtg Pipe Diameter (etches) 1 114 1t4 2 3 (Feet) 1 fib fY. 1 3 f 0 13 18 30 60 2 f l 16 21 31 68 8 11 16 26 54 2s" 10 14 20 32 64 H(Feet)Pirpe 8 12 16 25 52 3 9 f4 19 30 60 3r t 6 Mch Perforations I"s Inch Perforations ) Ace Diameter (Inches) Prftispacing Pipe Demeter(Inc}tes)1 114 tst 1 3 (Feet) 1 IN 1N 2 312 18 26 46 87 2E21 71 11912 17 24 40 fb 2t: 20 69 13511 16 22 37 75 I 201 29 1 38 j 64 1 128 >• rotal Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of Perforated Laterals. 13 Perf. Per Lat. X ��Number of Perf. Lat. = 39 Total Number of Perf. 10. Select Type of Manifold Connection (End or Center): End 11. Select Lateral Diameter (See Table) : t.50 in Pressure Distribution Design Worksheet 12. Calculate the Square Feet per Perforation. Recommended value is 4-11 ft' per perforation. Does not apply to At -Grades a. Bed Area = Bed Width (ft) X Bed Length (ft) 10 ft X 38 ft = 380 ft` b. Square Foot per Perforation = Bed Area divided by the Total Number of Perforations . 380 ft' 39 perforations = 9.7 ft2/perforations 13. Select Minimum Average Head: 1.0 ft 14. Select Perforation Discharge (GPM) based on Table: 0.74 GPM per Perforation 15. Determine required Flow Rate by multiplying the Total Number of Perfs. by the Perforation Discharge. 39 Pei is X 0.74 GPM per Perforation = 29 GPM 16. Volume of Liquid Per Foot of Distribution Piping (Table 11): 0.110 Gallons/ft 17. Volume of Distribution Piping = _ [Number of Perforated Laterals X Length of Laterals X (Volume of Liquid Per Foot of Distribution Piping) X 36 ft X 0.110 gal/ft = 11.9 Gallons 18. Minimum Delivered Volume = Volume of Distribution Piping X 4 11.9 gals X 4 = 47.5 Gallons Table If Volume of Liquid in Pipe Pipe Liquid Diameter Per Foot finches) (Gallons? 1 O-OJ5 1.25 0-078 1.5 O_71o_ 1 0.380 )Comments/Special Design Considerations: I Pump Tank Design Worksheet (Demand Dose) -_ DETERMINE TANK CAPACITY AND DIMENSIONS Project ID: v 04.17.2018 1. A. Design Flow n5esign sixI GPD B. Min. required pump tank capacity: Ga: C.Recommenaed pump tank capacity: Gat (SOD 2. A. Tank Manufacturer: Brom Wilbert B. Tank Model: _ C. Capacity tram manufacturer: 7500 Gallons Nate. Design calculations are based on this specific tank. Suhstitut Ing a different tank model will change the pump D. Gallons per inch from manufacturer: 10.0 Gallons per inch floor or timer settings. Contact designer it rhanyes are necessary. E Liquid depth of tank `,ram manufacturer: -9.5 Inches DETERMINE DOSING VOLUME 3 Calculate Volume to Cover Pump IThe inlet of the pump must be at least 4 -inches from the bottom of the pump tank a 2 inches of water ca+enng the pump is reca nmenc l -Pump and black height - 2 inches) X Gallons Per Inch 12C m 3F I I 13 in + 2 mthesn X 30.0 Gallons Pc Inch 450 Gallons 4 Minimum Delivered Volume - 4 X Volume of Distribution Pipusg: - Line 17of the pressure Distribution or Line Il of Non -level 48 Galtons Iminimum dose) 5 Calculate Maximum Pumpout Volume 125,. of Design Fiuwl Design Flow: GPD X 0.25 225 Gallons Imaximum dcW I6 Select apumpoutvolumethat meets both Minimum and Maximum. 22° Gallons - Volume ofLiquidin 7 Calculate Doses Per Day = Design Flow : Detfvered Volume pipe 1 900 lgfld. 224 gal = 4.02 Doses Pipe Liquid 8 Calculate DrannWds: I Diameter Per Foot A. D(mmeterofSupply Poe = inches (inches) (Gallons) 6. Length W. Supply Pipe - 270 feet 1 0.045 C e Volumof liquid Per Lineal Font of Pipe - 0.170 Gallons) f; 1.25 0.078 1 .5 0.110 D. Drainbock = Length of Supply Pipe %Volume of Liquid Per I ineal Foot of P+pe - 2 0.170 230 ft X 0.770 gat/ft = 39.1 Gailom 3 0.380 9. Total Dosing volume - Deffvared Volume plus Dromback 4 0.661 224 gal . 39.1 gal - 263 Ga11om 10. Minimum Alain VOluma = Depth of alarm (2 or 3 inches) X gatlans per fnch of tank �in X 30.0 gallin = o Gallons DEMAND DOSE FLOAT SETTINGS 11. Calculate Float Separation Distance using Dosiny Volume. Total Dosing Volume (Gallons Per Inch 263 gal 30.0 gat n - 8.8 Innes 12. Measuring from bwtam of tank: Inches far Dose: 8�8 in A. Distance to set Pump Of( Float = PUMP - block hegh7 - 7 inches -- 13 in . 7n 76 Inches Alarm Depth 27.8 in - B. Distance to set Pump On Float=DnIo.ce to Set Pump-0ff Ffoot - Float Separation Distance Pump On 24.8 in S.i.O J,. 18 In* 8.8 in = 25 inches Pump Off 16.0 in .._ Gal C. Distance to set Alarm Float - Distance to set Pump -On Floor - Alarm Depth r2J inches) :gC " A 75 in + 3.0 in = 28 Inches FM 5Y 79',) - z2 q/% /ao, p HomeStead Septic System Services 1108 Goldenrod Lane Shakopee, MN 55379 MPCA Licensed #583 Dale Denn — Owner Cell Phone: 612-310-7887 Humcstcadseptic d outlook.com Property: 821 Creekwood Drive Chaska, MN 55318 Response to supplement Variance request: There are not two different septic locations. Please see the design or the drawing page that is attached to this letter. The Mound has to be split into two equal parts due to the nature of the contours on the property. A Mound Septic has to be set on a contour for the full length of its rockbed according to Minnesota 7080 Code. The contours in this case are not continuous enough to site the full length of the rockbed. Thus there are two parts, not two sites. 2. Furthermore, based on contours alone and the nature of the contours indicated above, it is not feasible to simply begin to move, shift or slide the system anywhere from where it is now sited. I spend time with the laser level establishing contours initially and they just where not very conducive to set a full length Mound practically anywhere on the site. The contours, and the slope, another important and code aspect of designing a septic, both work best where the Mound is now designed. Out in the lawn area towards the home, the contours are short, and become nonlinear, and the slope drops to nearly zero. In other words, slightly undulating in different directions making it difficult to set a Mound with the highest level of confidence in longevity. Zero slope meets the code, but it is riskier to place as Mound on zero percent slope that is slightly undulating because the effluent is more difficult to evaluate where it will go and pond and soak up. A definitive slope defines clearly the direction of effluent flow. I always try to avoid siting a Mound on slope less than 1-2%. 3. Thirdly, it to have a septic system verses a standard type I. Going out into the lawn towards the home has soils that have some indication of disturbance, most likely from the home building Process. This disturbance can include mixing of soils, addition fill soil spread over natural soil, soil compaction, slow percolation, all of which become much less suitable for the performance of a septic system of almost any sort. A few soil samples cannot tell the whole story with soils that have been altered or impacted by construction activity. The may not accept effluent over a long time, the effluent may not be treated as effectively as a soil with its natural properties of texture and structure, and the effluent may hit compacted layers and move laterally and potentially discharge at some point being untreated septic effluent. Disturbed soils are much higher risk of failing to take effluent and failing to treat effluent. The best soils with sufficient slope and contours are always the best choice in protecting the environment and protecting public health and safety. lr _- By Dale Denn Owner pi c F+ lyPk� in► � & uFF u fil- 'D 1,00s f SPO . 10 61. P � pFGK �FtR a- orv7 F 0 iL- — P14 �7, FVC it=Ilk pd �L V& ,,d MacKenzie, Per Krista, Water Resource comments are as follows: I would recommend denial, as there are some significant stormwater concerns that would very likely be made worse by the proposed location of the system. It's my understanding after talking with Eric and Chip, and meeting on site, that there is an alternative location and system that is feasible. I would like the applicant at the very least to provide an argument as to why an alternative location and system could not be used. Concerns are as follows: • The current proposed location is directly adjacent to a swale that is taking a large amount of stormwater runoff from the Golf Course and directly discharging into Bluff Creek, which is classified as an impaired water by the state, and currently under a TMDL. • There is a large head cut, which is already actively eroding the bluff directly downstream from the proposed location. Mackenzie, do you mind sending an electronic copy of the proposed plan to Terry and Chip if you have it (cc'd). I would like their comments included as well. Vanessa Vanessa Strong Water Resources Coordinator CITY OF CHANHASSEN PH. 952.227.1168 FX. 952.227.1170 W W W.urhanhassen.mn.us IfX J MacKenzie, My recommendation would be to push the mound placement towards the front yard setback (toe of mound slope to within 1 foot of the front yard setback) which would increase the distance of the mound from the bluff setback. I would also recommend the mound ratio be changed from 3:1 to 4:1, which would also increase the distance between the toe of the mound to the bluff setback. Thank you, Ag't Eric Tessman Building Inspector CITY OF CHANHASSEN PH. 952.227.1194 FX. 952.227.1190 www.ci.chanhassen.mn.us L 1314 3• ' 0 1431 TO: MacKenzie Walters, Assistant Planner FROM: Jill Sinclair, Environmental Resources Specialist DATE: September 18, 2018 SUBJ: 821 Creekwood Rd, Variances to construct a septic system The lot has a number of existing mature trees covering the bluff, setback area and up into the yard. All of the proposed septic locations are sited within the wooded areas of the lot and close to or within the bluff setback. Removing mature trees at the top of the bluff exposes the area to potential erosion issues. Staff recommends that sites outside of the bluff setback that remove as few trees as possible are the preferred locations for a septic system. CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ) ss. COUNTY OF CARVER ) 1, Kim T. Meuwissen, being first duly sworn, on oath deposes that she is and was on September 6, 2018, the duly qualified and acting Deputy Clerk of the City of Chanhassen, Minnesota; that on said date she caused to be mailed a copy of the attached notice of Public Hearing to Consider a Variance Application to Install a Septic System within the Required Subsurface Sewer Treatment Systems Setbacks, Front Yard Setback, and Fluff Setback and Impact Zone at 821 Creekwood Drive, Planning Case File No. 2018-17, to the persons named on attached Exhibit "A", by enclosing a copy of said notice in an envelope addressed to such owner, and depositing the envelopes addressed to all such owners in the United States mail with postage fully prepaid thereon; that the names and addresses of such owners were those appearing as such by the records of the County Treasurer, Carver County, Minnesota, and by other appropriate records. 44Mw m en,Deputy Cl 3� Subscribed and sworn to before me thisj�"day ofSCL:�'e-rythe� , 2018. �1 Notary ublic JEAN M. STECKLING cC4MMW@ oNOWN �E I An . Mo Disclaimer This map is neither a IegaNy recorded map nor a survey and is rot intended to be used as one. This map is a comPila/b^ of recordsinfonna0on and data located in venous city, county. state and federal offices and other sources regarding the area shown, and is b be used for reference purposes only. The City does not warrent that the Geographic Mbnnstion System (GIS) Data used to prepare this map are error tree, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or, precision in the depiction of geographic features. The preceding disdaamtsr is provided pursuant to Minnesoha Statutes §46603, Subd. 21 (2000), aro the user of this map acknowledges Mat the Cay shall not be fable for any damages, and expressly waives all claims, and agrees to defend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties which arise out of the useYs access or use of data provided. This map is neither a legally recorded map nor a survey and is not intended to oe used as one. This map is a compilation of records. information and data located in venous city, county, sbte and ledeml offices and other sources regarding the area shown. and is to be used for reference purposes only. The City does not wenant that the Geographic Information System (GIS) Data used to prepare this map ate error free, and the City does not represent that to GIS Data can be used for navigational, tracking or any other purpose requiring exacting measumment of distance m direction or precision in the depiction of geographic features. The precedvp dscsimer is provided pursuant to Minnesota Stabiles §466.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages. and expressly waives alt claims, and agrees b delennd, indemnify. are hold hamless pits CM from any and all claims brought by User, as eopbyeee or agents, or third parties which arise out of the user's access or use of data provided, aTAX_NAMEa sTAX_ADD_L1a tTAX_ADD_L2a,ifTAX_ADD_L3a oNext Recorda«TAX_NAMEa aTAX ADD_L1a aTAX_ADD_L2a,ATAX_ADD_L3* Notice of Public Hearing Chanhassen Planning Commission Meeting Notice of Public Hearing Chanhassen Planning Commission Meeting Tuesday September 18, 2018 at 7:00 p.m. This healing may not Date &Time: start until later In the evening, depending on the order of theagenda. Location: City Hall Council Chambers, 7700 Market Blvd. Consider a variance application to install a septic system within the required Subsurface Sewer Treatment Systems Proposal: setbacks, front yard setback, and bluff setback and Impact zone. Applicant: Gene & Lois Sipprell Property 821 Creekwood Drive Location: A location map is on /he reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the public hearing through the following steps: What Happens w Wthe 1. Staff will give an overview of the proposed project. at Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. _ If you want to see the plans before the meeting, please visit the city's projects web page at: www.cl.chanhassen.mn.u9l20l8-17. If you wish to talk to someone about this project, please contact MacKenzie Walters by email at mwalters(fti chanhassen.mmus or by Questions & phone at 952-227-1132. If you choose to submit written Comments: comments, it is helpful to have one ropy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday Mor to the Planning Commission meeting. Sign up to receive email and/or text notifications when meeting agendas, packets, minutes and videos are uploaded to the city's website. Go to wvvw.ci.chanhassen.mn.us/notifOe to sign up! Cry Ra P.* —: . $uMIWMan. Rarnad lien fXwlrTmmis. Site Ren Renews. C di pmll add Interim IInas. Weed, Age,eons. Reeonings. log Comisslm OlY ls ts lk holding IM Plemm rn,guA Rlbhearing Coda AmendM Cmmrehmsiw Ran Amendmems end ordinances movieIll pnmedy w tam Son feel al the sueletl elle to he,meed d the eppfcah. an aribng. Any Interested prnty Is mstM to attend Me ,seting. • Stan pWahm a report on Me sulord oppticallon Mal IdMes eA pertinent information And a,mnmierieslim. Thee reports are by,guest. Al the Renting CXWh3edn m long, stetted glw a varbgl oveMew of tlro report add a recdmmmdahon. gwllable T1s stern will be opened for Me puNd b apeaY abdd the proposal as a part of the hearing process. Tee Ctammiaaion We dose the petit haaorg and discuss the item and make e,commendatlon to the GIy (a Jl. The Gly Camdl may 1.11 eMrm Cr mMity Wtmlly a perry tib Renting ComNvlon a it land rrdeMon. Rexaa fromgM use end code emaMmeno tetra n simple maladly vie tin Cit, C end IoM uses m W mom re l to mm 1g." moside,eaA^91 hemmerde t wilO a eassi days itni waives MIs standoSsith td. e0 days unless the aD to . SW,sme Ste* Sol t their regales ell ep log Sm lobe processed compete Any person to bn an i Ih,ugn lee Some applivaone due to mer mrnningry my lege several months to aCity"Siting s andl sc dr g pnxma orhoilbotild Teck with the RenNrg Depen13 and regarding IN nods eM ted W Me for Me Gly Co,mdl meeting • A neighborhood spekespnsonAep,eemamve Is encouraged M pensee s iemad bin Me pity, we encouregM ro oOpen n Istry ser meal Wan Me nelgnbad,ons ri,slon on their e,waal. Ste is a tym de b resew Ms ndals wtM any Iadda rM persm(s) . Rg,,nme me Rer,Nng Commsslon hdda rM puDll<needng. Ing Gly fi�untll does est. Montes e, oaken end arty mrtesphemco regard,g Mn apNirwaam WR M inducted in ane report to tin Gfy Cmmda. ff you wash to haw eomllMng lobe inchMed Ir Ing fafrod. -,___- _r -n •w- u.....i..n c,•a -- remind on Me nomeulor. Notice of Public Hearing Chanhassen Planning Commission Meeting Tuesday, September 18, 2018 at 7:00 p.m. This hearing may not Date & Time: start until later in the evening, depending on the order of the agenda. Location: City Hall Council Chambers, 7700 Market Blvd. Consider a variance application to install a septic system within the required Subsurface Sewer Treatment Systems Proposal: setbacks, front yard setback, and bluff setback and impact zone. Applicant: Gene & Lois Sipprell Property 821 Creekwood Drive Location: A location map Is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the public hearing through the following steps: What Happens W Wthe 1. Staff will give an overview of the proposed project. at Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the city's projects web page at: www.cl.chanhassen.mn.us/2018-17. if you wish to talk to someone about this project, please contact MacKenzie Walters by email at mwaltersAci chanhassen.mn.us or by Questions & phone at 952-227-1132. If you choose to submit written Comments: comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday prior to the Planning Commission meeting. Sign up to receive email and/or text notifications when meeting agendas, packets, minutes and videos are uploaded to the city's website. Go to www.ci.chanhassen.mn.us/nottfyme to sign up! Clty Rssaew Prpcedura: . SrIMIssIm], Planned UNI DibmiOW encs. Silt, Ran Renews. CoMlkmal and Interim Uses. WassM AMeretlena. Rezomngs, (.mel mbgo iva Rm Ammdmmts aM Code Amendmi Whom A pudic hearing before in. Penning comrdsaim. at, crdinmces ,gm, vett prooll Wnnm Seo feet of the subject doe to be isolated d the applire11on In smiting, Any Interested Dad Is instal 10 attend Me dSmUng • Slag prepares a repod m to subfed apiillcahon that Indudes ell perloent Informal and a remmmendahm. Thee. WWI are ny At the Ranting Comnmsslon meeting, staff wll giw a wmal overview of Me ,pori eM a racwnmendston evallede reguesl The Hem will be tapered f, the MANIC to speak about Ing propose es a Dae of Me heelmlg gospels The commission will dose the public Marko and discuss Me item and mase a nrrmmnmrdstlon to the Gty Codpol. The Gly comWl may,ve,e, affirm minority vbdly u Deeny the Rannog Cdnmissim's recommendation. Remnings, land eve Brat code amendments take a simple majority vote of the Gty C naidl except ,zonings And land use arneirdmenta room residential M commerdslAndusbr al. . Memo Slate Statins 519.99,gmras all eppllrwtions d be Wocessed Within 60 days unless the eppkc t waives this standard Some eDpmcelions due to rhelr ComglanllY ^�Y lAke several montes to aanplele. Any person wishing to follow an Item through IM vocals shmld check WIM the Manning ,marinmM regarding its SIAlus She schMuting for the Gly Camdl meeting. . A nelghbdhood apokespe,Mrap,senreew Is mmureged to prosde a contact for the City. Ogm developers are encw,ged ID l la also avNtabll Io resew Me p,lecl wain any add meet wllh Me nNnning oM regarding lhdr a marlin,gs ere any peespond • Because Me Renting ComrNaslon hide the public nead�, lee Gly Cuiaxdl dies not, And Any ted trait ll� R dudes In haw In MP on e ea d ton1the Oy C nil. II yw wise ro hew somelnlnq to Ea intlueM In Inn rnpnn. I�eesenwn ed Mei st din ro PIN TAX NAME 252970070 MARK D & KAY M HALLA 253050100 MARK D HALLA 250350900 SPENCER L & GLORIA A BOYNTON 253060020 HALLA FAMILY LP 252970010 DIRK R HANSON 250363600 JAMES W SABINSKE 258720020 JESSIE KOEBNICK 250260900 GENE RICHARD SIPPRELL 258720010 JAMES R SCHAFFRAN 250261200 ANTHONY R LUND 250260800 BLUFF CREEK GOLF ASSOC TAX _ ADD _Ll TAX—ADD-1-2 TAX_ADD_L3 SHAPE.STArea() 6055 HIGHWAY 212 CHASKA MN 55318-9250 6055 HIGHWAY 212 E CHASKA MN 55318-9250 10000 GREAT PLAINS BLVD 6155 RIVIERA LN EXCELSIOR MN 55331-2972 777 CREEKWOOD 6601 MOHAWK TRL EDINA MN 55439-1029 720 CREEKWOOD DR 770 CREEKWOOD DR CHASKA MN 55318-9620 770 CREEKWOOD DR 775 CREEKWOOD CHASKA MN 55318-9621 775 CREEKWOOD 815 CREEKWOOD ST CHASKA MN 55318-9643 815 CREEKWOOD DR 821 CREEKWOOD DR CHANHASSEN MN 55318- 821 CREEKWOOD DR 845 CREEKWOOD DR CHASKA MN 55318-9643 845 CREEKWOOD DR 925 CREEKWOOD DR CHASKA MN 55318-9645 925 CREEKWOOD DR PO BOX 1060 CHANHASSEN MN 55317-1060 1025 CREEKWOOD DR PROPOSED MOTION: "The Chanhassen Planning Commission recommends that the City Council approve the placement of the pump line within the 50 -foot bluff setback area and 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval and adopts the attached Findings of Fact and Recommendation." (Note: A motion for denial and appropriate findings of fact are also included at the end of the report.) SUMMARY OF REQUEST: The applicant has an existing septic system that does not meet current standards and will need to be replaced within the next two years. The applicant is requesting a variance to place a mound septic system eight feet from the property lines and 15 feet from the top of the bluff, with new tanks replacing the existing tanks 20 feet from the top of the bluff and a pump line within the bluff setback and impact zone. The proposed septic system is being sized to accommodate the possible addition of a sixth bedroom to the existing five -bedroom house. A variance is required because Chapter 19 requires that septic systems be setback 10 feet from property lines and 50 feet from the top of the bluff, and Chapter 20 prohibits the removal or alteration of vegetation and grading within 20 feet from the top of a bluff. LOCATION: APPLICANT: 821 Creekwood Drive (PID 250260900) Gene and Lois Sipprell 821 Creekwood Drive Chanhassen, MN 55318 PRESENT ZONING: A-2 2030 LAND USE PLAN: Residential Low Density ACREAGE: 1 DENSITY: NA SCANNED 821 Creekwood Drive Planning Case #2018-17 Page 2 LEVEL OF CITY DISCRETION IN DECISION-MAKING: The city's discretion in approving or denying a variance is limited to whether or not the proposed project meets the standards in the Zoning Ordinance for a variance. The city has a relatively high level of discretion with a variance because the applicant is seeking a deviation from established standards. This is a quasi-judicial decision. Notice of this public hearing has been mailed to all property owners within 500 feet. PROPOSAL/SUMMARY The applicants recently purchased this property. During the purchasing process, they were informed that the septic system was inadequate and would need to be replaced within the next two years. They also wish to size the system to accommodate a future sixth bedroom. Their septic system installer informed them that a double -mound system would be required and that due to the location of the house, well, and disturbed nature of the soils near the house, the septic system would need to be located within the 50 -foot bluff setback. The proposed septic system would be approximately eight feet from the property lines and 15 feet from the top of the bluff, with tanks located 20 feet from the top of the bluff. The pump line would be within five feet of the top of the bluff at its closest point. The septic installer has stated that the proposed tank and septic locations are required due to the location of the home's sewer line and existing tanks. Similarly, the location of the pump line is dictated by the location of the tanks and mound system. The installer is proposing locating the double -mound system in the northeast comer of the lot to maximize its distance from the bluff, and because it is the only area of the property that he believes has suitable contours and soils for the mounds. The installer has stated that there is not sufficient space on the property to accommodate the septic system outside of the 50 -foot bluff setback. 821 Creekwood Drive Planning Case #2018-17 Page 3 The applicant has stated that the requested variance is necessary to address the deficiencies of their existing septic system, and to allow for the addition of an additional bedroom on the property. APPLICABLE REGULATIONS Chapter 1 - General Provisions, Section 1-2, Rules of Construction and Definitions Chapter 19 - Water, Sewers and Sewage Disposal, Article IV, Subsurface Sewage Treatment Systems, Sec. 19-67, Amendments Chapter 20 - Zoning Article II, Division 3, Variances Chapter 20 - Zoning Article II, Division 4, Nonconforming Uses Chapter 20 - Zoning Article X, "A-2" Agricultural Estate District Chapter 20 - Zoning Article XXIII, Division, Sec. 20-906, Alternative Lot Size Requirements in A- 2 and RR Residential Zoning Districts Chapter 20 - Zoning, Article XXVIII, Bluff Protection, Sec. 20-1403, Removal or Alteration of Vegetation Chapter 20 - Zoning Article XXVIII, Bluff Protection, Sec. 20-1404, Topographic Alterations/Grading and Filling Chapter 20 - Zoning Article XXXI, Bluff Creek Overlay District, Sec. 20-1564, Structure Setbacks Note: Most of the applicable setback standards are located in Chapter 19; however, Chapter 19 does not have a specific variance procedure so the variance is being granted from the general zoning code using the procedure outlined in Chapter 20. County records indicate that the home was built in 1975. On September 21, 1984, the city issued a permit for a 634 square foot addition. On October 14, 1991, the city passed ordinance number 152, which created the city's bluff protection ordinance. On August 22, 1994, the city expanded the bluff protection ordinance to cover the entire city. On December 14, 1998, the city passed ordinance number 286, which created the Bluff Creek Overlay District. On February 8, 1999, the city passed ordinance number 289, which governed the installation and maintenance of septic systems and established a 20 -foot bluff setback. On May 23, 2011, the city passed ordinance number 523, adopting Carver County Ordinance 67- 2010 by reference and establishing the current 50 -foot bluff setback for septic systems. 821 Creekwood Drive Planning Case #2018-17 Page 4 SITE CONDITIONS The property is zoned Agricultural Estate District (A-2) and contains a bluff. Portions of the site are also located near the Bluff Creek Overlay District. This zoning district requires lots to be a minimum of 2.5 acres, have front yard and rear setbacks of 50 feet, side yard setbacks of 10 feet, and limits parcels to a maximum of 20 percent (20%) lot coverage. Structures are required to be 30 feet or the existing distance from the top of the bluff, with no topographic or vegetative alterations permitted within 20 feet from the top of the bluff. Structures must also be setback 40 feet or the existing distance from the Bluff Creek primary zone and no site disturbances are permitted within the first 20 feet or first 50 percent (50%) of existing setback from the primary zone. Chapter 19 requires septic systems to be setback 50 feet from bluffs. The lot is a non -conforming, 43,600 square feet lot. The existing structure meets the front, rear, and side setbacks, with a deck encroaching approximately 10 feet into the 30 -foot bluff setback. The house appears to meet the 40 -foot setback from the Bluff Creek primary zone. The existing septic tanks are located approximately 20 feet from the top of the bluff. NEIGHBORHOOD Vogel Addition The property is an unplated lot near the Bluff Creek Golf Course and Vogel Addition. The property is accessed by Creekwood Drive, a private road serving the golf course and six residential properties. All of the residential properties are on septic and well. Municipal services are not expected to become available in the near future. Variances within 500 feet: 1985-03 - 815 Creekwood Drive: Denied - Minimum lot size for subdivision to create a 3.56 - acre lot and a 1 -acre lot; was subsequently litigated with settlement to create two lots with 2.28 acres each. 2010-05 - 845 Creekwood Drive: Approved - Retaining wall within bluff impact zone. 821 Creekwood Drive Planning Case #2018-17 Page 5 ANALYSIS Septic and Pump Tanks The applicant is proposing placing the septic and pump tanks behind the house. 20 feet from the top of the bluff. The applicant has stated that this location is necessitated by the placement of the home's existing sewer line and the elevation of the sewer pipe. The existing tanks are also located in this area. Th � e propos location s an already disturbed area of the site that would need to be further disturbed to fill the existing tanks. It is also outside of the 20 -foot Bluff Creek primary zone do not disturb area and 20 -foot bluff impact zone. Staff believes that the proposed location for this portion of the system is reasonable and should not significantly impact the bluff. For these reasons, staff recommends approval of the 30 -foot bluff setback variance for the septic and pump tanks. Pump Line The applicant's proposed location for the pump line is determined by the locations of the pump tank and the mound. The applicant has stated that physical features of the property prevent any alternative placement of the pump line. As the applicant has noted, the ultimate location of the pump line will be determined by the location of the tanks and the mound system. Since the location of the tanks is predetermined by the home's sewer line and the pump line's exit from the pump tank is dictated by the location of the house and deck, the location of this feature cannot be significantly altered. Since the pipe is entirely below ground, staffs largest concern would be the removal of vegetation, especially mature trees that would accompany its installation. The proposed location mostly avoids the woods, and staff encourages the applicant to take all possible steps to minimize tree loss associated with its installation. Staff believes that the proposed location of this portion of the system is necessary, and cannot be significantly improved upon. For these reasons, staff recommends approval of the variance from the 50 -foot bluff setback and 20 - foot bluff impact zone for the pump line. 821 Creekwood Drive Planning Case #2018-17 Page 6 Mound System The applicant has stated that the proposed location for the mound system, shown in green, is necessary due to the contours of the property. They have stated that state code requires a mound septic to be set on a contour for the length of its rock bed and that this consideration requires the double -mound system as well as the proposed placements of both mounds and their drain fields. The applicant's installer has indicated a strong preference for placing a mound system on an area with at least a 1-2% slope. Staff asked the applicant to address the possibility of installing a Type III septic system. The applicant's installer has indicated that the presence of disturbed soils in the middle of the yard makes it difficult to be certain that an installed system would perform adequately in that area. They have stated that disturbed soils, such as appear to be present in that area, have a higher chance of failing to accept effluent long term, of undertreating effluent, and of discharging untreated effluent. They note that the best soils with sufficient slope and contours are always the best choice for locating a septic system. In reviewing the proposed location for the double -mound system, staff was very concerned to notice that it is adjacent to a swale that handles a large amount of stormwater runoff from Bluff Creek Golf Course and directly discharges into Bluff Creek, a state classified impaired water. Staff also observed that a large head cut is present in this area and that it is actively eroding the bluff directly downstream from the proposed location. For these reasons, Water Resources is recommending denial of the variance request unless it can be demonstrated that no other location or system is feasible. Staff consulted with Carver County's Soil and Water Conservation District's Conservation Technician, Chip Hentges, regarding the proposed location of the double -mound portion of the system. He indicated that the largest concern from the County's perspective was that the proposed mound system stay clear of the drainage swale located near the 928 contour. It is Conservation Technician Hentges' opinion that by gating I -foot lot line setbacks it should be possible to shift the system to the southeast so that the toe of the southern mound's sand is clear of the 30 -foot bluff setback indicated on the survey. RM 9i]6 �9M '216 Ar ._ . .9]1.3 9192 .9313 solo A 5690 9D2 938) �•l ]C 1 M .9 93]0 1 938 M •\ a93Q,9 a 1 9291 \ �041 =] \ 9- 9292 \9393 •93!%q/��% lM 919.1 �. �99 ' 9)9.1 .9186 /OQ Q`7 -i ,939. 1 92bc w IfY � � ' . .9 .919.5 9]➢.3 9197\ - _ =30 - -� ___ _ .• / 1 .939.) 821 Creekwood Drive Planning Case #2018-17 Page 7 He also notes that the rock bed locations should be able to work in their proposed areas. Building Inspector Tessman also reviewed the proposed septic system's location and design. He recommends that the mounds be pushed forward to within 1 foot of the property line and that the mound ratio be changed from 3:1 to 4:1. Both of these modifications would increase the distance from the toe of the proposed mound system to the top of the bluff. Based on these reviews and the importance of protecting Bluff Creek, staff is recommending that a 20 -foot bluff and 9 -foot property line setback variance be given for the mound portion of the system, rather than the 35 -foot bluff and 2 -foot property line setback variance the applicant is requesting. Impact on Neighborhood The largest impact on the neighborhood will be the loss of the wooded area in the northeast of the property. Most of the surrounding properties have heavily wooded yards; however, several other properties do have mostly open front yards. Many components of the septic system would be located below grade and would not be expected to have any visual impact on the neighborhood. The applicant intends to install landscaping to minimize the visual impact of the above -grade portions of the system. SUMMARY Staff believes that a variance is necessary to accommodate a new septic system; however, the bluff is already beginning to head cut and the removal of vegetation, disruption of soil, and other elements involved with septic systems could exacerbate the existing erosive issues. Staff believes that the septic system's design and location can be adjusted to provide for an increased distance between portions of the septic system and the bluff. Staff recommends that a modified version of the proposed variance, which allows the septic system to be located closer to the property lines but requires a larger bluff setback than the applicant is requesting, be approved. RECOMMENDATION Staff recommends that the Chanhassen Planning Commission recommend that the City Council approve the placement of the pump line within the 50 -foot bluff setback area and 20 -foot bluff impact zone, a 30 -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval and adopt the attached Findings of Fact and Recommendation: 1. The applicant must apply for and receive all necessary permits from the relevant agencies. 821 Creekwood Drive Planning Case #2018-17 Page 8 2. The applicant shall work with city, county, and watershed staff to maximize the system's distance from the bluff, minimize its impact on the bluff, and avoid impacting the existing drainage swale. 3. The applicant shall minimize tree loss, and shall, to the greatest extent possible, avoid removing mature trees within 20 feet of the top of the bluff. 4. A new 1" = 20' scale survey showing the final location of the septic and pump tanks, pump line, mound, and drain field shall be provided as part of the permitting process. 5. The area around the septic system mounds shall be landscaped so as to minimize its visual impact. Should the Planning Commission recommend denying the variance request, it is recommended that the Planning Commission adopt the following motion and attached Findings of Fact and Decision: "The Chanhassen Board of Appeals and Adjustments recommends that the City Council deny the variance request to place a pump line within the bluff setback and impact zone, the 30 -foot bluff setback variance for the tanks, and the 35 -foot bluff setback variance and the 2 -foot property line setback variance for the mound system, and adopts the attached Findings of Fact and Decision" ATTACHMENTS 1. Findings of Fact and Recommendation Approval 2. Findings of Fact and Recommendation Denial 3. Development Review Application 4. Narrative 5. Certificate of Survey 6. Miscellaneous Septic Documents 7. MPCA Documents 8. HomeStead Septic Systems Response to Supplement Variance 9. WRC Memo on 821 Creekwood 10. Building Memo on 821 Creekwood 11. Environmental Resources Specialist Memo on 821 Creekwood 12. Public Hearing Notice Mailing List GAPLAN\2018 Planning Cases\18-17 821 Creekwood Drive Variance\Staff Report -821 Creekwood Drive_PC.doc CITY OF CHANHASSEN AFFIDAVIT OF MAILING NOTICE STATE OF MINNESOTA) ) ss. COUNTY OF CARVER ) I, Kim T. Meuwissen, being first duly sworn, on oath deposes that she is and was on September 6, 2018, the duly qualified and acting Deputy Clerk of the City of Chanhassen, Minnesota; that on said date she caused to be mailed a copy of the attached notice of Public Hearing to Consider a Variance Application to Install a Septic System within the Required Subsurface Sewer Treatment Systems Setbacks, Front Yard Setback, and Fluff Setback and Impact Zone at 821 Creekwood Drive, Planning Case File No. 2018-17, to the persons named on attached Exhibit "A", by enclosing a copy of said notice in an envelope addressed to such owner, and depositing the envelopes addressed to all such owners in the United States mail with postage fully prepaid thereon; that the names and addresses of such owners were those appearing as such by the records of the County Treasurer, Carver County, Minnesota, and by other appropriate records. Subscribed and sworn to before me this&' -' day of S .r�--� , 2018. Notary blic .Meuwissen, Deputy Cl a� ,JEAN M. STECKLING Notary Public -Minnesota my ConxnWbo E*xes .lan 31, 20,9 This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records, intonation and data located in various city, county, slate and federal offices and other sources regarding the area shown. and is to be used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to prepare this map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees to defend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third panes which arise out of the user's access or use of data provided. This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records, information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is to be used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to prepare this map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. The preceding disclaimer is provided pursuant to Minnesota Statutes §608.03, Subd. 21 (2000), and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees to defend, indemnify, and told ham less the City from any and all claims brought by User, its employees or agents, or third parties which arise out of the user's access or use of data provided. aTAX_NAME» aTAX_ADD_LU xTAX_ADD_L2u,«TAX_ADD_L3u «Next Record»(< TAX NAME)) «TAX_ADD_LU aTAX_ADD_L2»,<<TAX_ADD_L3» Notice of Public Hearing Notice of Public Hearing • Chanhassen Planning Commission Meeting Chanhassen Planning Commission Meeting Tuesday September 18, 2018 at 7:00 p.m. This hearing may not Date & Time: start until later in the evening, depending on the order of the acienda. Location: City Hall Council Chambers, 7700 Market Blvd. Consider a variance application to install a septic system within the required Subsurface Sewer Treatment Systems Proposal: setbacks, front yard setback, and bluff setback and impact zone. Applicant: Gene & Lois Sipprell Property 821 Creekwood Drive Location: A location map is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the public hearing through the following steps: What Happens W Wthe 1. Staff will give an overview of the proposed project. at Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the ro'ect. If you want to see the plans before the meeting, please visit the city's projects web page at: www.ci.chanhassen.mn.us/2018-17. If you wish to talk to someone about this project, please contact MacKenzie Walters by email at mwaltersOci chanhassen.mn.us or by Questions & phone at 952-227-1132. If you choose to submit written Comments: comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday prior to the Planning Commission meeting. Sign up to receive email and/or text notifications when meeting agendas, packets, minutes and videos are uploaded to the city's website. Go to www.ci.chanhassen.mn.us/not' me to sign u 1 Clry Review Procedure: • Subdivisions, Manned unit nevenpments, Site Ran Reviews, Conditional and Interim Uses, Wetland Alleratins, Rezonings, Comprehensive Plan Amendments and Code Amendments requlre a public hearing before the Manning Commission. City Is ordinances require all property within 500 feel of Me subject site to be notifled of the application In writing. Any Interested parry invited to attend the meeting. _ am • Stsff by request. Me Planningared, amport on Me Commissionapplication hmeetin9 stag 91m aat Includes all pennant lverbal govervew ofn and a f M0 report anld a recommendaon. These tion dose the available The Item will be opened fa the public to speak about the proposal as a part of the hearing process. The Commission will headng and discuss the Item and make a mcommendatln to the Oty Coundl. The City Council may reverse, amen or public modify Wn,ey or partly the Manning Commission's reccmmendallon. Remnings, land use and code amendments take a simple majority vole of Ore City Council except reznings and land use amendments from residential to commerdslendustrial. • Minnesota State Statute 519.99 regdres all epi,swoms to be processed Within 50 days unless the applicant waives this standard. on Waring to follow an Item Some ns due to la.lty may take Several months to complete. Any ofo through Me lannning processpshlouldocrack With theplanning Department regarding Its status and scheduling for City Council meeting. • A nWghborhooe spokes"monhepresenlegve is encouraged to provide a cooled for the dry. Often developers are encouraged to Staff Is available to review the project with any Interested person(s). meet with the neighborhood regarding their proposal. also • Because the Manning Commission holds the public headng, the City Council does not. minutes are taken and any correspondence Wit be induced in the repn to the Oty Council. a you Wish m ham something to he Included In the report, regarding the application Tuesday, September 18, 2018 at 7:00 p.m. This nearing may not Date &Time: start until later in the avenin , de endin on the order of theagenda. Location: City Hall Council Chambers, 7700 Market Blvd. Consider a variance application to install a septic system within the required Subsurface Sewer Treatment Systems Proposal: setbacks, front yard setback, and bluff setback and impact zone. Applicant: Gene & Lois Sipprell Property 821 Creekwood Drive Location: A location map Is on the reverse side of this notice. The purpose of this public hearing is to inform you about the applicant's request and to obtain input from the neighborhood about this project. During the meeting, the Chair will lead the public hearing through the following steps: What Happens W Wthe 1. Staff will give an overview of the proposed project. at Meeting: 2. The applicant will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses the project. If you want to see the plans before the meeting, please visit the city's projects web page at: www.ci.chanhassen.mn.us/2018-17. If you wish to talk to someone about this project, please contact MacKenzie Walters by email at mwalters@ci.chanhassen.mn.us or by Questions & phone at 952-227-1132. If you choose to submit written Comments: comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide copies to the Commission. The staff report for this item will be available online on the project web site listed above the Thursday 'Eto the PlanningCommission meeting. Sign up to receive email and/or text notifications when meeting agendas, packets, minutes and videos are uploaded to the city's website. Go to www.ci.chanhassen.mn.us/notifyme to sign up! City Review Procedure: • Subdivisions, planned Unit Developments, Site Plan Revewa, Conditional and Interim Uses, Wetland Alterations, Rezonings, Comprehensive Ran Amendments and Code Amendments require s public hearing before the Planning Commission. city is ordinances require all property within 500 feet of the subject site to be notified of the application In writing. Any Interested party Invited to attend the meeting. • Staff prepares a report on the subject application that Includes all pertinent Information and a moommendatin. These reports aro by request. Al the planning Commissln meeting, staff will give a verbal overview of the report and a recommendation. available The Item will be opened for Me public to speak about the proposal as a part of the hearing process. The Commission will dose the hearing and discuss the Item and make a recommendation to the City Council. The City Council may reveres, affirm or modify public et,dly or partly Me planning Commission's recommendation. Rezonings, land use and code amendments take a simple majority of the City Council except reznings and land use amendments from residential to c0mmercialendu3mal. vote • Minnesota Stale Statute 519.99 requires all applications to be processed within 60 days unless the applicant Walves this standard. Some applications due to their complexity may lake several months to complete. Any person wishing to follow an Item through the process should check whir the planning Department regarding its status and scheduling for the Oty Council meeting. • A neighborhood spokesperson/rerran"am is encouraged to provide a contact for the City. Often developers are encouraged to to review the project with any Interested parson(s). meet with Me neighborhood regarding their proposal. Staff Is also available • Because the Manning Commission holds the public headng. the Oty Coundl does not. Nantes are taken and any correspondence regarding the application will be Included in the repo to the Oty Council. If you wish M ham something to be included In the report, leeae cnlad the Rennin Staff person named on the notification. PIN TAX—NAME 252970070 MARK D & KAY M HALLA 253050100 MARK D HALLA 250350900 SPENCER L & GLORIA A BOYNTON 253060020 HALLA FAMILY LP 252970010 DIRK R HANSON 250363600 JAMES W SABINSKE 258720020 JESSIE KOEBNICK 250260900 GENE RICHARD SIPPRELL 258720010 JAMES R SCHAFFRAN 250261200 ANTHONY R LUND 250260800 BLUFF CREEK GOLF ASSOC TAX—ADD—Ll TAX—ADD—L2 TAX—ADD—L3 SHAPE.STArea() 6055 HIGHWAY 212 CHASKA MN 55318-9250 6055 HIGHWAY 212 E CHASKA MN 55318-9250 10000 GREAT PLAINS BLVD 6155 RIVIERA LN EXCELSIOR MN 55331-2972 777 CREEKWOOD 6601 MOHAWK TRL EDINA MN 55439-1029 720 CREEKWOOD DR 770 CREEKWOOD DR CHASKA MN 55318-9620 770 CREEKWOOD DR 775 CREEKWOOD CHASKA MN 55318-9621 775 CREEKWOOD 815 CREEKWOOD ST CHASKA MN 55318-9643 815 CREEKWOOD DR 821 CREEKWOOD DR CHANHASSEN MN 55318- 821 CREEKWOOD DR 845 CREEKWOOD DR CHASKA MN 55318-9643 845 CREEKWOOD DR 925 CREEKWOOD DR CHASKA MN 55318-9645 925 CREEKWOOD DR PO BOX 1060 CHANHASSEN MN 55317-1060 1025 CREEKWOOD DR CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA FINDINGS OF FACT AND RECOMMENDATION (DENIAL) "MMA The application of Gene and Lois Sipprell for the installation of a septic system within the required bluff setback and impact zone on a property zoned A-2 - Planning Case 2018-17. On September 18, 2018, the Chanhassen Planning Commission, acting as the Board of Appeals and Adjustments, met at its regularly scheduled meeting to consider the application. The Planning Commission conducted a public hearing on the proposed variance preceded by published and mailed notice. The Board of Appeals and Adjustments makes the following: FINDINGS OF FACT 1. The property is currently zoned Agricultural Estate District A-2. 2. The property is guided in the Chanhassen Comprehensive Plan for Residential Low Density. 3. The legal description of the property is: The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572 feet of the Southeast Quarter of the Southeast Quarter (SE '/+ of SE '/4) of Section 26, Township 116, Range 23, Carver County, Minnesota 4. Variance Findings — Section 20-58 of the City Code provides the following criteria for the granting of a variance: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. Finding: The intent of the city's bluff protection ordinance is to ensure that vegetation and soils located near and on bluffs are not distributed in a manner that has the potential to create erosive conditions or otherwise negatively impact the bluff. The bluff near the proposed location for the septic system is already subject to a large amount of runoff that has created a head cut which is actively eroding the bluff downstream from the proposed location. Furthermore, runoff from this area directly discharges into Bluff Creek, a state classified impaired water. It would not be in line with the intent of this Chapter to allow the removal of vegetation and disruption of soils that could exacerbate these issues. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. Finding: A type III septic system could be installed in the flat portion of the yard away from the top of the bluff. Since there is an alternative location for a septic system that meets city code, the applicant does not have a practical difficulty. c. That the purpose of the variation is not based upon economic considerations alone. Finding: The variance request is not solely based upon economic considerations. d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. Finding: The lot is a non -conforming lot of record that was created before the existing district standards, bluff protection, and septic system ordinances were created. e. The variance, if granted, will not alter the essential character of the locality. Finding: The area where the applicant is proposing to install the septic system is heavily wooded and many mature trees would need to be removed. Most of the residential homes in the vicinity are setback within existing woods; removing these trees would noticeably alter the character of the neighborhood. f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 216C.06, subdivision 14, when in harmony with this Chapter. Finding: This does not apply to this request. 5. The planning report #2018-17, dated September 18, 2018, prepared by MacKenzie Walters, is incorporated herein. RECOMMENDATION "The Chanhassen Board of Appeals and Adjustments recommends that the City Council deny the variance request to place a pump line within the bluff setback and impact zone, the 30 - foot bluff setback variance for the tanks, and the 35 -foot bluff setback variance and 2 -foot property line setback variance for the mound system." ADOPTED by the Chanhassen Planning Commission this 18th day of September, 2018. CITY OF CHANHASSEN BY: Chairman 2 821 CREEKWOOD DRIVE - PLANNING CASE NO. 2018-17 $200.00 Variance 5200.00 Notification Sign $27.00 Property Owners List (9 addresses x $3 each) $50.00 Escrow for recording variance documents $477.00 TOTAL $450.00 Check 4363 from Lois Sipprell $27.00 Credit Card payment from Gene Sipprell $0.00 BALANCE OWED SCANNED CITY OF CHANHASSEN P O BOX 147 CHANHASSEN MN 55317 08/24/2018 1:19 PM Receipt No. 00387266 CLERK: AshleyM PAYEE: Gene & Lois Sipprell 821 Creekwood Drive Chaska MN 55318- 821 Creekwood Drive -Planning Case No 2018-17 ------------------------------------------------------- Variance 200.00 Sign Rent 200.00 Recording Fees 50.00 GIS List 27.00 Total Cash Check 4363 Credit Cd Change 477.00 0.00 450.00 27.00 0.00 CITY OF CHANHASSEN 7700 MARKET BLVD CHANHASSEN, MN. 55317 952-227-1100 SALE REF;;. 00000001 Batch #: 129 08120/18 08:35:30 APPR CODE: 800253 Trace: 1 VISA Chip —*--*,-'-0946 ..l« AMOUNT $27.00 Visa Credit AID: A0000000031010 TVR: 80 80 00 80 00 TSI: 68 00 CAUNOLDER ACNNOWIEDGH RECEIPT OF GOODS ANDIOR SERVICES IN THE AMOUNT OF THE TOTAL SNOW PERIOD THAW YOU 161CXONf COPY COMMUNITY DEVELOPMENT DEPARTMENT Planning Division — 7700 Market Boulevard CITY OF CHANHASSEN Mailing Address — P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1130 / Fax: (952) 227-1110 AGENCY REVIEW REQUEST LAND DEVELOPMENT PROPOSAL Please review and respond no later than the review response deadline Agency Review Request Date: Agency Review Response Deadline: Date Application Filed: Au ust 27, 2018 September 6, 2018 August 17, 2018 Contact: Contact Phone: Contact Email: MacKenzie Walters 952-227-1132 mwalters@ci.chanhassen.mn.us Planning Commission Date: City Council Date: 60 -Day Review Period Deadline: September 18, 2018 at 7:00 p.m. October 8, 2018 at 7:00 p.m. October 16, 2018 Application: To consider a variance application to install a septic system within the septic system bluff setback, front yard setback, and bluff setback and impact zone. Planning Case: 2018-17 Web Page: www.ci.chanhassen.mn.us/2018-17 In order for staff to provide a complete analysis of issues for Planning Commission and City Council review, we would appreciate your comments and recommendations concerning the impact of this proposal on traffic circulation, existing and proposed future utility services, storm water drainage, and the need for acquiring public lands or easements for park sites, street extensions or improvements, and utilities. Where specific needs or problems exist, we would like to have a written report to this effect from the agency concerned so that we can make a recommendation to the Planning Commission and City Council. Your cooperation and assistance is greatly appreciated. City Departments: Federal Agencies: Adjacent Cities: ❑ Attorney ❑ Army Corps of Engineers ❑ Chaska ® Building Official ❑ US Fish & Wildlife ❑ Eden Prairie ® Engineer ❑ Jackson Township ❑ Fire Marshal Watershed Districts: ❑ Minnetonka ® Forester ® Park Director E] Carver County El Shorewood ❑ Victoria r ® Water Resources El Lower MN River ❑ Minnehaha Creek ❑ Law Enforcement Adjacent Counties: ® Riley -Purgatory -Bluff Creek Carver County Agencies: ❑ HennepinUtilities: ❑ Scott ❑ Community Development ❑ Cable TV — Mediacom ❑ Engineer School Districts: ® Environmental Services El Electric —Minnesota Valley ❑ Historical Society ❑ Electric — Xcel Energy ❑ Eastern Carver County 112 ❑ Parks ❑ Magellan Pipeline ❑ Minnetonka 276 ® Soil & Water Conservation District ❑ Natural Gas — CenterPoint Energy ❑ Phone — CenturyLink Other Agencies: State Agencies: ❑ Hennepin County Regional Railroad ElBoard of Water & Soil Resources Authority MN Landscape Arboretum E]El Health ❑ Historical Society ❑ SouthWestTransit El Natural Resources -Forestry ❑ TC&W Railroad ❑ Natural Resources -Hydrology ❑ Pollution Control ❑ Transportation SCANNED COMMUNITY DEVELOPMENT DEPARTMENT CITY OF CHANHASSEN Planning Division – 7700 Market Boulevard Mailing Address – P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1300 / Fax: (952) 227-1110 APPLICATION FOR DEVELOPMENT REVIEW Submittal Date: 8/,9/ -WIT PC Date? SS if i CC Datc IU I k' I �� 60 -Day Review Date.l I I to Section 1: Application Type (check all that apply) (Refer to the appropriate Application Checklist for required submittal information that must accompany this application) ❑ Comprehensive Plan Amendment ......................... $600 ❑ Subdivision (SUB) ❑ Minor MUSA line for failing on-site sewers ..... $100 ❑ Create 3 lots or less ........................................ $300 El Create over 3 lots .......................$600+$15 per lot El Conditional Use Permit (CUP) ( lots) ❑ Single -Family Residence ................................ $325 ❑ Metes & Bounds (2 lots) .................................. $300 ❑ All Others........................................................ $425 ❑ Consolidate Lots..............................................$150 ❑ Interim Use Permit (IUP) ❑ Lot Line Adjustment.........................................$150 ❑ Final Plat ❑ In conjunction with Single -Family Residence.. $325 ..........................................................$700 (Includes $450 escrow for attorney costs)' ElAll Others......................................................... $425 'Additional escrow may be required for other applications ❑ Rezoning (REZ) through the development contrail. ❑ Planned Unit Development (PUD) .................. $750 ❑ Vacation of Easements/Right-of-way (VAC)........ $300 ❑ Minor Amendment to existing PUD ................. $100 (Additional recording fees may apply) ❑ All Others......................................................... $500 Variance (VAR) $200 ❑ Sign Plan Review ................................................... $150 ❑ Wetland Alteration Permit (WAP) ❑ Site Plan Review (SPR) ❑ Single -Family Residence ............................... $150 ❑ Administrative.................................................. $100 ❑ All Others....................................................... $275 ❑ Commercial/Industrial Districts' ......................$500 ❑ Zoning Appeal $100 Plus $10 per 1,000 square feet of building area. ...................................................... ( thousand square feet) 'Include number of existinoemployees- E3 Zoning Ordinance Amendment (ZOA)................. $500 'Include number of newemployees. ❑Residential Districts......................$500 NOTE: When multiple applications are processed concurrently,................ — Plus $5 per dwelling unit (_ units) the appropriate fee shall be charged for each application. Notification Sign (City to install and remove)...................................................................................................................... /❑ $200 Property Owners' List within 500' (city to generate after pre -application meeting) .................................................. $3 per address Escrow for Recording Documents (check all that apply) ........................... ( addresses) ................... $50 per document ❑ Conditional Use Permit ❑ Interim Use Permit ❑ Site Plan Agreement ❑ Vacation Variance ❑ Wetland Alteration Permit ❑ Metes & Bounds Subdivision (3 docs.) Easements ( easements) ❑ Deeds TOTAL FEE: Section 2: Required Information Description of Proposal: Property Address or Location: PQ / C r -e e kweel 57`, -elf ��n I�q /Yli1! SS3id� Parcel #: Legal Description: -see -Fne /e5ea1 Sir 2`e/eMln t 5 f4q(�r�1n7` Total Acreage: /. OD/ AC 174SWetlands Present? ❑ Yes ❑ No Present Zoning: Select One Requested Zoning: Select One Present Land Use Designation: Select One Requested Land Use Designation: Select One Existing Use of Property: RFS. P ay / ❑Check box if separate narrative is attached. SCANNED 2Qi PropertySection 3: . Applicant APPLICANT OTHER THAN PROPERTY OWNER: In signing this application, I, as applicant, represent to have obtained authorization from the property owner to file this application. I agree to be bound by conditions of approval, subject only to the right to object at the hearings on the application or during the appeal period. If this application has not been signed by the property owner, I have attached separate documentation of full legal capacity to file the application. This application should be processed in my name and I am the party whom the City should contact regarding any matter pertaining to this application. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. I certify that the information and exhibits submitted are true and correct. Name: Contact: Address: A Phone: City/State/Zip: AVCell: Email: Fax: Signature: Date: PROPERTY OWNER: In signing this application, 1, as property owner, have full legal capacity to, and hereby do, authorize the filing of this application. I understand that conditions of approval are binding and agree to be bound by those conditions, subject only to the right to object at the hearings or during the appeal periods. I will keep myself informed of the deadlines for submission of material and the progress of this application. I further understand that additional fees may be charged for consulting fees, feasibility studies, etc. with an estimate prior to any authorization to proceed with the study. I certify that the information and exhibits submitted are true and correct le�e�s rel -e zm� e v Name: /� Contact: Address: Pa/ Cl-eflCMyOd PSD!// Ae,e' 2x.27 _City/State/Zio: 25X,9 �i/�mi✓� SS3Y/v CeII Ca%s cjs a —moo i- a /yam Email: Si ` U Y1 d lOIV. ed z�-- Signature: o Date: 8/ilo This application must be completed in full and must be accompanied by all information and plans required by applicable City Ordinance provisions. Before filing this application, refer to the appropriate Application Checklist and confer with the Planning Department to determine the specific ordinance and applicable procedural requirements and fees. A determination of completeness of the application shall be made within 15 business days of application submittal. A written notice of application deficiencies shall be mailed to the applicant within 15 business days of application. PROJECT ENGINEER (if applicable) Name: l)k !aa 4 been% h'Dmes11X-dS/!/�: l C-ontaet- Address: //e e go/p ely l- d G4 %✓e Phone: City/State/Zip: 3 79 Cell: 3iD Email:��rGSt�septr�y D✓�/BDK� DDS/ Fax: Section 4: Notification Information Who should receive copies of staff reports? 'Other Contact Information: ErProperty Owner Via: UEmail L9 Mailed Paper Copy Name: ElVi Applicant a: Email Mailed Paper Copy Address: Engineer Via: L2 Email 0 Mailed Paper Copy City/State/Zip: Via: a: Email Mailed Paper Copy Email: INSTRUCTIONS TO APPLICANT: Complete all necessary form fields, then select SAVE FORM to save a copy to your device. PRINT FORM and deliver to city along with required documents and payment. SUBMIT FORM to send a digital copy to the city for processing. SAVE FORM PRIM FORM SUBMfi FORM ti Lr) -1t N UO X7 _% 1.5 A iJ _% 1.5 A Planning Case #2018-17 821 Creekwood Drive Variance PLANNING COMMISSION SEPTEMBER 18, 2018 CITY COUNCIL OCTOBER 8, 2018 APPLICANT: GENE AND LOIS SIPPRELL A VARIANCE TO PLACE A DOUBLE -MOUND SEPTIC SYSTEM WITH THE 50 -FOOT SEPTIC SYSTEM BLUFF SETBACK, 10 -FOOT SEPTIC SYSTEM PROPERTY LINE SETBACK, AND 20 -FOOT BLUFF IMPACT ZONE. 3-% tv Afl, e. � ►`P�42 V G� �/U✓1C� �� C Location: 821 Creekwood Drive Zoned A-2 2.5 acre lot areaM 5o front and rear to'side 2o% lot coverage 3o' bluff or existing for pre'9i 20 bluff impact zone 4o'Bluff Creek Primary Zone or existing for pre'98 2o' Do not disturb or 50% Of existing ------------- 5o' bluff (septic) io' property line (septic) Site Conditions: 821 Creekwood Drive 1 acre tot 13.7% lot corer Primary structure meets all setbacks Deck encroaches 10 feet into 30 - foot bluff setback. house zo' fl Existing septic system is inadequate and should be replaced within z Yeats. Existing septic system does not meet cvrrem setbacks. 3 Applicant Proposal - - - may,, rrvwseu rwicci. O install septic and pump tanks 20' from top of K� the bluff. O htstall pump line within 5o' bluff setback (septic) and 2o' bluff impact zone ❑ Install mound system t5 from the top of the +� bluff. J fr• t lia Justification: y / U Existing system deficient, cannot accommodate a future 6N bedroom. O Disturbed soils in areas not within bluff e ,• "f-,,,. I "' setback. LI Tanks and line placement determined by house septic line. . ' ❑ Mound system must be located on contour for length or rook bed, best to place on area with at least 1-2% slope 4 Future Sewer and Development N WK XJ us I Not to scale EUWgIiM1 Sb4on EU Q S-A� Sever E.." Face Men —MCES MIxmpl •'y:/• �•••• r F SbMn FN �• -.. .......• FUM aar M&n + FUM SaAr Sever Mak to A", -G�eclturoc� .�Il pva6L& Rcce(it! eAtly O&P- 24iCo'A,e), (qtr oP Jp�c For Row E ISI o� c/ee.k..rei Sty -3 s Staff Assessment and Summary -_il - - -- — ❑ Staff agrees with the applicant's assessment that the tanks' and pump line's locations are necessitated by the existing conditions on the property. O Staff is very concerned about the head cut that is actively eroding the bluff downstream from the proposed location. J Staff believes that the system can be reoriented shifted closer to the property lines to increase the r distance between it and the top of the bluff. ! \ a op. L _ yea —Bijgerl Beal if to key fretsJ,ttyrblj tke fWale 4,VUU RuAf pe+r qZy Mle,(411-a =thee self is NE Cmotw& fetes 10"k if "IC/ A44 6afe;l) would fa%.1 ev anew close.- to pnwEy jiW tutu+ 61,.N.. - Can I" U ryr [eq- _�!' ri,, f q(,lturifGl� Ictl :� Leuwir it Coot ell . _ aocejw- (wu.dl&%Le. Af,(blle J�r�ca fu.r�e� 6Q,• _ r attr✓ oefe(I' of (o+y +ev,t+ wi jw- 0 Staff Recommendation C Pump Tanks 20' from bluff 20' from bluff Pinup line Within 5o' bluff septic Within 5o' bluff septic and and 2o' bluff impact 2o' bluff impact zone zone Double -Mound System t5 from bluff 3o' from bluff Property line 8'setback i setback Building staff believes that the system could be redesigned from a 3:1 mound ratio I to a 4:1 mound ratio in order to increase the distance between the toe of and the top of the bluff. g4it/t) in,pccwo E► rrr,ronit pl6vhtt 4v/�rtp�P_ -f dvtjlpi* " l� 7 MOTION 6o.wd of ipPeuv avN. e "The Chanhassen placement of the pump line within the 50400t bluff setback area and 20 -foot bluff impact zone, a 3o -foot bluff setback variance for the tanks and a 20 -foot bluff and 9 -foot property line setback variance for the mounds and dispersal area, subject to the conditions of approval and adopt the attached Findings of Fact and Recommendation." P'I Re�jer.. Fav 6e Bine aw «�m�rr>M t�1, H t CITY fRECEIVEDANN MN I -&-/F ww ql(/ao/d' HomeStead Septic System Services 1108 Goldenrod Lane Shakopee, MN 55379 MPCA Licensed 4583 Dale Denn — Owner Cell Phone: 612-310-7887 Homesteadseptic@outlook.com Property: 821 Creekwood Drive Chaska, MN 55318 Response to supplement Variance request: There are not two different septic locations. Please see the design or the drawing page that is attached to this letter. The Mound has to be split into two equal parts due to the nature of the contours on the property. A Mound Septic has to be set on a contour for the full length of its rockbed according to Minnesota 7080 Code. The contours in this case are not continuous enough to site the full length of the rockbed. Thus there are two parts, not two sites. 2. Furthermore, based on contours alone and the nature of the contours indicated above, it is not feasible to simply begin to move, shift or slide the system anywhere from where it is now sited. I spend time with the laser level establishing contours initially and they just where not very conducive to set a full length Mound practically anywhere on the site. The contours, and the slope, another important and code aspect of designing a septic, both work best where the Mound is now designed. Out in the lawn area towards the home, the contours are short, and become nonlinear, and the slope drops to nearly zero. In other words, slightly undulating in different directions making it difficult to set a Mound with the highest level of confidence in longevity. Zero slope meets the code, but it is riskier to place as Mound on zero percent slope that is slightly undulating because the effluent is more difficult to evaluate where it will go and pond and soak up. A definitive slope defines clearly the direction of effluent flow. I always try to avoid siting a Mound on slope less than 1-20/6. 3. Thirdly, to have a septic system verses a standard type I. Going out into the lawn towards the home has soils that have some indication of disturbance, most likely from the home building process. This disturbance can include mining of soils, addition fill soil spread over natural soil, soil compaction, slow percolation, all of which become much less suitable for the performance of a septic system of almost any sort. A few soil samples cannot tell the whole story with soils that have been altered or impacted by construction activity. The may not accept effluent over a long time, the effluent may not be treated as SCANNPD effectively as a soil with its natural properties of texture and structure, and the effluent may hit compacted layers and move laterally and potentially discharge at some point being untreated septic effluent. Disturbed soils are much higher risk of failing to take effluent and failing to treat effluent. The best soils with sufficient slope and contours are always the best choice in protecting the environment and protecting public health and safety. By Dale Denn Owner AL ?id ,�� ceEcku>aap low �t �3� j �6ti�AL GIn1lT5 IY / 5py✓Q f-t..147EkAL GAMIC t E✓� /o x 3 9, P.B. atic14 pp i i - /�° pi � 7aucr�' The Narrative for the 821 Creekwood Drive, Chaska, MN 55318 (Mailing Address) Submitted by homeowners: Gene and Lowie Sipprell August 20, 2018 On May 29, 2018, we purchased 821 Creekwood Drive as our primary residence. As part of the process we requested that the lot be surveyed, septic and water systems be tested. The results indicated the septic system was found to be inadequate to current standards and would need to be replaced within two years. As we inquired into this process we learned if we ever wanted to add another bedroom we would need to have a double mound system. We consulted septic system installer Dale Dern of Homestead Septic before the purchase of the home. He drew up two or three different double -mound systems providing a way for water movement across the property. In June, 2018, we met with the city representatives at the proposed new site for the septic system. They advised that the only location for a double mound system would be in the far north eastern corner of our lot and a variance would be needed to address the requirement setback to be 50 feet from the bluff. July, 2018, Sathr-Berquist, Inc of Wayzata completed two surveys: surface lot and bluff elevation. (See previously submitted documents) August, 2018, we met with the neighbors including Michael Cohrs, General Manager/Course Superintendent of Bluff Creek Golf course that adjoins our property. They are supportive of installing the new septic system. Our realtor, Rick Brama has advised us on a landscaper who could provide us with a beautiful design. Consequently, we are confident that we can install the required septic system and a beautiful landscaping area that will enhance our neighborhood. We look forward to answering any questions the city may have and moving forward so we can complete the septic system installation and landscaping this Fall. Thank you for your assistance. Sincerely, Rev. Dr. Gene Sipprell (952-797-2027) SCANNED Homestead Septic System Services 1108 Goldenrod Lane Shakopee, MN 55379 MPCA Licensed #583 Dale Denn — Owner Cell Phone: 612-310-7887 Homesteadsepticnoutlook.com Septic System Variance: Property: 821 Creekwood Drive Chaska, MN 55318 A variance is needed that is within the 50 foot bluff setback ordinance. In general, there are three situations whereby components of the new Mound Septic System will be within 50 feet of the Bluff: 1. Septic and Pump Tanks 2. Pump line from pump tank to the Mound 3. The Mound The reasons for the variances is as follows: 1. Septic and Pump tanks have to be where they are as that is where the old tanks are thus the sewer line from the home comes out in that vicinity and the elevation of the sewer pipe dictates where tanks need to go. 2. The pump line from the pump tank thus has to start at the pump tank location and continue to the Mound. Physical features disallow any options to where the pump line can be run. 3. The Mound has been located where it is due to the fact that the soils in this area are un- disturbed, verses somewhat disturbed soils in the lawn area from initial construction. I know that large trees indicate the most natural soils. Secondly, the contours are ever so slightly undulating outside of where I set the Mound that is it difficult to set a Mound on a definite contour to meet the Septic Ordinance. Lastly, if all of the Mound has to be outside of the 50 foot bluff setback, there literally is not enough room to place any part of the septic system. By Dale Denn Owner SCANNED Mound Septic Design ♦ DATE: 5/17/2018 ♦ CLIENT: ♦ ♦ SITE: 821 Creekwood Drive ♦ Chaska, MN 55318 ♦ DESIGNER: Dale J Denn ♦ Homestead Septic ♦ 1108 Goldenrod Lane ♦ ♦ ♦ Shakopee, MN 55379 MPCA License #583 ♦ Cell: 612-310-7887 Email: Homesteadseptic(@outlook.com ♦ For new construction lots, all septic sites shall be protected in the field with fencing/identification up to ♦ the time of installation. Existing home lots, do not disturb septic site and keep all heavy equipment and ♦ ♦ vehicles off of the site. Any trees that need removal must be done without rubber tired equipment, ie, track machines to avoid soil compaction and undue disturbance. Cut tree trucks as close to surface as ♦ possible and leave stumps intact, do not excavate. Grinding is ok with a portable grinder. Contact Dale Denn with any questions, comments, or concerns about this Septic Site. ♦ This Cover Page with Designer Signature, electronic or otherwise, hereby certifies that 1 have ® completed this septic design in accordance with all applicable State Septic Rules. Local rules may vary from State Rules. Installer to verify all aspects of applicable Local Rules and setbacks that may ♦ ♦ be more restrictive than State Rules. Local Units of Governments are required to publish any rule or portion thereof that differs from State Rules. Consult with Local Unit of Government. ♦ ♦ Dale Denn 3226 5/17/2018 ♦ ♦ DESIGNER SIGNATIBE MPCA CERT# DAT ♦ 821 Creekwood Drive ♦ Design Notes: System is for a 6 bedroom Home. Soils only accommodate a Pressurized Mound Septic. Mound is ♦ split into two equal units on account of slope, short contours, drainage swale, and bluff line. ♦ Each Mound halve will have the sandbed and laterals at the same elevation based on sandbed elevation of Unit 1. End feed from pump each unit, essentially center feeding Mound as single unit. ♦ Finish Mound as one unit and build saddle to divert all rain and snow melt. ♦ ♦ Pump station is designed for a dual pump arrangement with an alternating dose panel. Each Mound half will have its own pump and be controlled by the dosing panel. Use either a dual pump line, one for each mound half, or a single pump line with Check Valves properly installed ♦ ♦ off of each pump. Calculate flow for each pump based on one half of total flow plus drainback. ♦ See design and pump pages. ♦ ♦Install pump line deep as possible and reverse pitch pump line so that all portions of pump line ♦ drain back into pump tank ♦ ♦ Pump and fill old septic tanks. Tree and brush removal necessary with some large trees to be removed. Cut stumps close to ♦ ground as possible and leave stumps intact. Only track machine shall be used in tree removal ♦ process to protect soils from undue disturbance and compaction. Tight access for septic tank truck. Tree trimming required on residence trees and neighbors trees. ! Variances to bluff for septic and pump tank, and for unit 1 of Mound may be necessary from City. Bluff line approximated and not set officially by elevation or surveyor. Surveying and plotting of all septic tanks, pump tanks, sewer lines, and both rock and sandbed absorption units suggested to ascertain all setbacks to property lines and bluff. I <�14- kr,w Q� 1")PO Pf 500 s.l', `�00 ST �S r� ° A49, iv - 1 7�zyCk' 4/ ,Foti7 COMMUNITY DEVELOPMENT DEPARTMENT CITY OF CHANHASSEN Planning Division -7700 Market Boulevard Mailing Address - P.O. Box 147, Chanhassen, MN 55317 Phone: (952) 227-1130 / Fax: (952) 227-1110 P VARIANCE �7QuL VP's t. APPLICATION CHECKLIST processedApplications will be Prior to filing an application for a variance, the applicant shall attend a conference with city staff. The application shall include the following: (1) Completed Application Form. �t/.1/I'..�iLG �I`tlrllrl.r� (2) Evidence of ownership or an interest in the property. r fLl (3) Application fee to include the following: Type Fee Variance $200 Notification Sign $200 Document Recording Escrow $50 Property Owners' List within 500' of subject property$3 (Cityto ate, fee determined at pre -application meebM) per address _ (4) Plot plan showing property lines, existing improvements, proposed improvements with setbacks, lot coverage, building height, etc. - g,1I tG/ (5) Written description ��ance requesL A *aNls �erbever bar d exp / it &4 b y dor! D91SeP f T�sfri/tom y fry y G- 10zrs,"eZ_ (6) Written justification of how request complies with the findings for granting a variance (pursuant to Section 20-58) as follows: a. Variances shall only be permitted when they are in harmony with the general purposes and intent of this Chapter and when the variances are consistent with the comprehensive plan. b. When there are practical difficulties in complying with the zoning ordinance. "Practical difficulties," as used in connection with the granting of a variance, means that the property owner proposes to use the property in a reasonable manner not permitted by this Chapter. Practical difficulties include, but are not limited to, inadequate access to direct sunlight for solar energy systems. i✓iea/ c. That the purpose of the variation is not based upon economic considerations alone. —" end ono e 6"""' d. The plight of the landowner is due to circumstances unique to the property not created by the landowner. - lv-v�-w .15,601s'< :73 / tv G -'may S-eA&--Ll- c!!/Ai e. The variance, if granted, will not after the essential character of the locality. - ro Q/>�rR L%/ *<- 16V 0-- ore /mese/ //.- f. Variances shall be granted for earth sheltered construction as defined in Minnesota Statutes Section 2160.06, subdivision 14, when in harmony with this Chapter. CITY OF CHANHASSEN RECEIVED SCANNED AUG 1 7 2018 CHAWASSEN PLANNING DEPT Preliminary Evaluation Worksheet 1. Contact Information v 04-17.2018 Property Owner/ Client: Date: 5/23/2018 Site Address: 821 Creekwood Drive, Chaska Project ID: Email: Phone: Mailing Address: Legal Description: ParcetlD: Latitude: Longitude: 2. Flow and General System Information A. Client -Provided Information Project Type: New Construction Replacement Expansion Repair Project Use: _ Residential -. Other Establishment: Residential use: P, Bedrooms: Dwelling Sq.ft.: Unfinished Sq. Ft.: # Adults: # Children: # Teenagers: I� In-home business JY/N): No If yes, describe: Garbage Disposal/Grinder Dishwasher Hot Tub' Water -using devices: Sewage pump in basement Water Softener` Sump Pump, (check all that apply) Large Bathtub >40 gallons _ Iron Filter" _ Self -Cleaning Humidifier' Clothes Washing Machine High Eff. Fumac& Other: Clear water source - should not go into system Additional current or future uses: None Anticipated non-domestic waste:) None The above is complete Ft accurate: Client signature Et date B. Designer -determined flow Information Attach additional information as necessary. Design Flow: 900 GPD Anticipated Waste Type: Residential BOD:mg/L TSS:mg/L Oil Et Grease:mg/L 3. Preliminary Site Information A. Well information Describe all wells within 100' of proposed SSTS: attach additional information if required. Well Depth Casing Confining STA # Description Mn. ID# (ft.) Depth (ft.) Layer Setback Source 1 Deep 50 50 2 3 4 Additional well Information: SCANNED Preliminary Evaluation Worksheet Site within 200" of noncommunity transient well (Y/N) no Yes, source: Site within a drinking water supply management area (Y/N) No Yes, source: Site in a inner wellhead management zone (Y/N) No Yes, source: Buried water supply pipes 50 ft of proposed system (Y/N) No B. Site located in a shoreland district/area? No Yes, name: Classification: Tank Setback: 50 ft. STA Setbk.: 50 ft. C. Site located in a floodplain? No Yes, Type(s):� Elevation of ordinary high water level: NA ft Source: Floodplain designation/ elevation (10YR): NA ft Source: Floodplain designation/elevation (100YR): NA ft Source: D. Property Line Id / Source: Owner survey County GIS Plat Map Other: E. ID distance of relevant setbacks on map: water Easements Weli(s) Building(s) - Property Lines OHWL Other: Bluff 4. Preliminary Soil Profile Information From Web Soil Survey (attach map Ft description) Map Units: Slope Ranger List landforms: upland plain Landform position(s): Back/ Side Slope Parent materials: Till Depth to Bedrock/ Restrictive Feature: 28 in Depth to Watertable: 28 in Septic Tank Absorption Field- At -grade: Map Unit Ratings Septic Tank Absorption Field- Mound: Septic Tank Absorption Field- Trench: 5. Local Government Unit Information Name of LGU: Carver County LGU Contact: 952-361-1820 LGU-specific setbacks: More restrictive - varify LGU-specific design requirements: More restrictive - large septic tank sizing LGU-specific installation requirements: Same as 7080 Notes: ] ^46 « . .� : «<z t. .. . .. t. m z: - .� : : . [ |� )\ �® \ § $ | § / \ | / z : « a ƒ �7a\ E� ¥ , � f ) 4/ \ =k kk z 2 Map Unit Description: Lester -Kilkenny loams. 2 to 6 percent slopes. eroded ---Carver County. Minnesota Carver County, Minnesota KB2—Lester-Kilkenny loams, 2 to 6 percent slopes, eroded Map Unit Setting National map unit symbol f9j2 Elevation: 700 to 1.600 feet Mean annual precipitation: 23 to 35 inches Mean annual air temperature: 43 to 50 degrees F Frost -free period: 155 to 200 days Farmland classification. All areas are prime farmland Map Unit Composition Lester eroded. and similar soils 60 percent Kilkenny, eroded, and similar soils: 40 percent Estimates are based on observations. descriptions. and transects of the mapunit. Description of Lester, Eroded Setting Landform: Moraines Landform position (two-dimensional). Backslope Down-slope shape: Linear Across -slope shape. Linear Parent material. Till Typical profile Ap - 0 to 8 inches: loam Bt - 8 to 35 inches clay loam Bk - 35 to 58 inches: loam C - 58 to 80 inches: loam Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat). Moderately high to high (0.60 to 2.00 Whir) Depth to water table: About 43 inches Frequency of flooding None Frequency of ponding None Calcium carbonate. maximum in profile: 25 percent Gypsum, maximum in profile: 1 percent Available water storage in profile High (about 10.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group. B Ecological site: Loamy Upland Savannas (R103XY02OMN) Forage suitability group: Sloping Upland. Acid (G103XS006MN) Natural Resources Web Soil Survey 5/23/2018 Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description_ Lester -Kilkenny loarns 2 to 6 percent slopes, eroded—Carver County, Minnesota Hydric soil rating No Description of Kilkenny, Eroded Setting Landform: Moraines Landform position (two-dimensional): Backslope Down-slope shape: Linear Across -slope shape: Linear Parent material Till Typical profile Ap - 0 to 11 inches. loam Bt - 11 to 35 inches: clay loam 2Bk.2C - 35 to 60 inches loam Properties and qualities Slope: 2 to 6 percent Depth to restrictive feature: More than 80 inches Natural drainage class Moderately well drained Capacity of the most limiting layer to transmit water (Ksat). Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 20 inches Frequency of flooding. None Frequency of ponding: None Calcium carbonate, maximum in profile: 20 percent Gypsum, maximum in profile. 1 percent Available water storage in profile: High (about 10.5 inches) Interpretive groups Land capability classification (irrigated) None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: C/D Ecological site: Clayey Upland Forests (F103XY026MN) Forage suitability group: Sloping Upland, Acid (G103XS006MN) Hydric soil rating: No Data Source Information Soil Survey Area. Carver County, Minnesota Survey Area Data Version 14. Oct 4. 2017 Natural Resources Web Soil Survey 5/23/2018 - - Conservation Service National Cooperative Soil Survey Page 2 of 2 Field Evaluation Worksheet 1. Project Information v 04.17.2018 Property Owner/Client: Project ID: 2. Utility and Structure Information Utility Locations Identified Gopher State One Call Any Private Utilities: � Locate and Verify (see Site Evaluation map) Existing Buildings Improvements Easements Setbacks 3. Site Information Vegetation type(s): Woods and lawn Percent s1ope:E___3 Slope direction: East Slope shape: Linear, Linear Landscape position: Shoulder Describe the flooding or run-on potential of site: Build saddle upslope of Mound to divert -ain and snow melt. Describe the need for Type III or Type IV system: Note: Elevations and Benchmarks identified on map? (Y/N): yes Proposed soil treatment area protected? (Y/N): Yes If yes, describe: 4. General Soils Information Original soils (Y/N): Yes If no, describe: Filled, compacted, disturbed areas (Y/N): No If yes, describe: Soil observations were conducted in the proposed system location (YIN): Yes A soil observation in the most limiting area of the proposed system (Y/N): Yes Number of soil observations: Soil observation logs attached (Y/N): Yes Percolation tests performed li attached (Y/N): Yes 5. Phase I. Reporting Information Depth Elevation Periodically saturated soil: 28 in 95.2 ft Soil Texture: clay loam Standing water: in ft Percolation Rate: 28.00 min/inch Bedrock: in ft Soil Hyd. Loading Rate: 0.45 gpd/ft' Required separation: 36 in Contour Loading Rate: 12 gpd/ft Max depth of system: in Floodplain Elev.(10 yr): NA feet Floodplain Elev.(100 yr): NA feet Differences between soil survey and field evaluation: Site evaluation issues / comments: Anticipated construction issues:;- Percolation Test Data r - Project ID. Test hole: #1 Location: P1 Depth": 12 inches Soil texture description: Elevation: 95.75 feet Depth (in) Soil Texture 'x 12 in. for mounds & at - 0 -12 Loam grades, depth of absorption area for trenches and beds Reading Start Time End Time Start Reading End Reading Perc rate a Difference Pass (in) (in) (mpi) Last 3 Rates 1 11:00 AM 11:20 AM 8.0 7.2 25.0 NA NA 2 11:23 AM 11:44 AM 8.0 7.2 24.7 NA NA 3 11:50 AM 12:10 PM 8.0 7.1 23.3 7.0 Yes 4 Chosen Percolation Rate for Test Hole #1 25.0 mpi Test hole: #2 Location: p2 Depth**: 12 inches Soil texture description: Elevation: 97.5 feet Depth (in) Soil Texture 12 in. for mounds & at - 0 -12 loam grades, depth of absorption area for trenches and beds Reading Start Time End Time Start Reading End Reading Perc rate0 6 Difference Pass (in) (in) (mpi) Last 3 Rates 1 11:05 AM 11:25 AM 8.0 7.3 28.2 NA NA 2 11:30 AM 11:50 AM 8.0 7.3 27.0 NA NA 3 11:55 AM 12:15 PM 8.0 7.2 26.3 6.6 Yes 4 Chosen Percolation Rate for Test Hole #2 28.0 mpi Percolation Test Data, 1. Contact Information Project ID: v 04. 17.2018 Property Owner/Client: 2. General Percolation Information Diameter E=in Date prepared and/or soaked: 5/23/18 Method of scratching sidewaWl Nait in board Is pre-soak required`? Yes If No, low long for 12' to soak away Omin Soak' end Soak' start time: 12:00 PM time: 4:00 PM 4:00 hrs of soak Method to maintain 12 in of water during soak large bins and siphon hose Not required in fast perc soils 3. Summary of Percolation Test Data Design Percolation Rate (maximum of all tests attached) = 28.00 mpi Additional Perc. Test Data Project ID Test hole: #3 Location: p3 Depth**: 12 inches Soil texture description: Elevation: 93.75 feet Depth (in) Soil Texture 12 in. for mounds & at- 0-12 loam grades, depth of absorption area for trenches and beds Reading Start Time End Time Start Reading End Reading Perc rate % Difference Pass (in) (in) (mpi) Last 3 Rates 1 11:10 AM 11:30 AM 8.0 6.8 16.7 NA NA 2 11:35 AM 11:55 AM 8.0 6.9 18.2 NA NA 3 12:03 PM 12:23 PM 8.0 6.8 16.7 8.3 Yes 4 Chosen Percolation Rate for Test Hole 13 18.0 mpi Test hole: #4 Location: Depth**: inches Soil texture description: Elevation: feet Depth (in) I Soil Texture " 12 in. for mounds it at- grades, depth of absorption area for trenches and beds Reading Start Time End Time Start Reading End Reading Perc rate % Difference pass (in) (in) (mpi) Last 3 Rates 1 NA NA 2 NA NA 3 Chosen Percolation Rate for Test Hole #41 Impi Soil Observation Log Project ID: v 04.17.2018 Client: Location / Address: Soil parent materiai(s): (Check all that apply) outwash Lacustrine Loess nu Alluvium Bedrock organic Matter Landscape Position: (check one) summit shoulder Back/side slope Foot slope i roe slope Slope shape Linear, Linear Vegetation: trees and grass Soil survey map units: tester killkenny 1`1 Slope %: 3.0 Elevation: 95.75 Weather Conditions/Time of Day: am clear to partly coludy Date 05/23/18 Observation #/Location: 81 Observation Type: Probe Depth (in) Texture Rock Frag. % Matrix Color(s) Mottle Colors) Redox Kind(s) Indicator(s) I-------- Structure -----------I Shape Grade Consistence 0.8 Loam <35% 10YR 2/1 Granular Friable Moderate 8-14 Loam <35% 10YR 3/2 Granular Friable Moderate 14-22 Clay Loam <35% 10yr 33 Blocky Firm Moderate 22.36 Clay Loam <35% 10vr 4/4 Blocky Firm Moderate Comments Redox at 28" 1 hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Dale Denn 583 (Designer/ Inspector) (Signature) License N 5123/2018 (Date) Soil Observation Log Project ID: v 04.17.2018 Client: Location / Address: Soil parent material(s): (Check all that apply) oulwash Lacustdne Loess TIII Alluvium Bedrock organic Matter Landscape Position: (check one) summit I shoulder Back/side slope Foot Slope I Toe slope Slope shape Linear, Linear Vegetation: ag land Soil survey map units: tester Slope %: 3.0 Elevation (ft): 93.75 Weather Conditions/Time of Day: am partly cloudy Date: 05/23/18 Observation #/Location: B3 Observation Type: Probe Depth (1n) Texture Rock Frag. % Matrix Colors) Mottle Color(s) Redox Kind(s) indicator(s) I-------- Structure-----------I Shape Grade Consistence 0.8 Loam <35% 10YR 2/1 Granular Friable Moderate 8 14 Loam <35% 10YR 3/2 - Granular Friable Moderate 14.22 Clay Loam <35% 10yr 3/2 10yr 3/4 Blocky Firm Moderate 2236 Clay Loam <35% 4/4 Blocky Firm Moderate Camtncnts Re Dox @ 29 Additional Soil Observation Logs Project ID: Client Location / Address: Soil parent material(s): (Check all that apply) Outwash Lacustrine loess Till Alluvium Bedrock Organic Matter Landscape Position: (check one) Summit Shoulder 1 Back/Sidc slope Foot Slope Toe Slope Slope shape Linear, Linear Vegetation: trees and grasses Soil survey map units: Lester Slope %: 3.0 Elevation: 97.5 Weather Conditions/Time of Day: am partly cloudy Date: 05/23/18 Observation #/Location: B2 Observation Type: Probe Depth (in) Texture Rock Frag. % Matrix Color(s) Mottle Collor(s) 7Redox Kind(s) Indicator(s) 1-------- Structure -----------I Shape Grade Consistence 0-8 Loam <35% 10YR 2/1 Granular Friable Moderate 8.14 Loam <35% 10YR 3/2 Granular Friable Moderate 14-22 Clay Loam <35% 1Dyr 3/3 Blocky Firm Moderate 22-36 Clay Loam <35% 10yr 4/4 Blocky Firm Moderate Comments ReDox C➢ 30 Design Summary Page 1. PROJECT INFORMATION v 04.17.2018 Property Owner/Client: Project ID: Site Address: Date: 5/22/2018 821 Creekwood Drive, Chaska Email Address: Phone: 2. DESIGN FLOW it WASTE STRENGTH Attach data / estimate basis for Other Establishments Design Flow: 900 GPD Anticipated Waste Type: Residential BOD:mg/L TSS: mg/L Oil EtGrease: mg/L Treatment Level: E=Select Treatment Level C for residential septic tank effluent 3. HOLDING TANK SIZING Minimum Capacity: Residential =400 gal/bedroom, Other Establishment = Design Flow x 5.0, Minimum size 1000 gallons Code Minimum Holding Tank Capacity: Gallons in Tanks or Compartments Recommended Holding Tank Capacity: Gallons in Tanks or Compartments Type of High Level Alarm: (Set @ 75% tank capacity) Comments: 4. SEPTIC TANK SIZING ------------------------------------------------------------------------ A. Residential dwellings: Number of Bedrooms (Residential):� Code Minimum Septic Tank Capacity: 3000 Gallons in Tanks or Compartments Recommended Septic Tank Capacity: 3000 Gallons in Tanks or Compartments Effluent Screen Et Alarm (Y/N): No Model/Type: ---------------------------------------------------------------------------------------------------- B. Other Establishments: Waste received by: GPD x Days Hyd. Retention Time - Code Minimum Septic Tank Capacity: Gallons In Tanks or Compartments Recommended Septic Tank Capacity: Gallons In Tanks or Compartments Effluent Screen Et Alarm (Y/N):Model/Type: -- ------------------------------------------------- ----------------------- 5. PUMP TANK SIZING Pump Tank 1 Capacity (Minimum): 1500 Gal Pump Tank 2 Capacity (Minimum):Gat Pump Tank 1 Capacity (Recommended): Gat Pump Tank 2 Capacity (Recommended): Gal Pump 1 29.0 GPM Total Head 27.4 ft Pump 2GPM Total Headft Supply Pipe Dia- E9in Dose Vol: 224.0 gai i Supply Pipe Dia. Dose Vol: =Gat Design Summary Page 6. SYSTEM AND DISTRIBUTION TYPE Project ID: Soil Treatment Type: Mound Distribution Type: r Pressure Distribution -Levet Elevation Benchmark: 100 ft Benchmark Location: top of block, garage 100 MPCA System Type: Type I Distribution Media: Rock Type III/IV Details: 7. SITE EVALUATION SUMMARY: -----------------------------------------------------------------------------------------...------------------------ ------------------ Describe Limiting Condition: Seasonal water table at 28" Depth Elevation Limiting Condition: 28 inches 2.3 ft 95.2 ft Minimum Req'd Separation: 36 inches3.0 ft Critical for system compliance Code Max System Depth: Mound inches 98.2 ft ---------------------------------------------------------------- ----------------------------- Soil Texture: I clay loam Layers with >35% Rock Fragments? (yes/no) No Percolation Rate: 28.00 MPI If yes, describe below: % rock and layer thickness, amount of soil credit and any additional information for Soil Hyd. Loading Rate: 0.45 GPD/ftz addressing the rock fragments in this design. Contour Loading Rate: 12 Note: Measured Land Slope: 3.0 % Note: Comments: FSptit system in 1 /2 for fit, with laterals at same elevations, center feed pump line. 8. SOIL TREATMENT AREA DESIGN SUMMARY Trench: Dispersal Areaft' Sidewall Depthin Trench Widthft Total Lineal Feet ft No. of Trenches Code Max. Trench Depthin Contour Loading Rateft Min. Lengthft Designed Trench Depthin Bed: Dispersal Areaft, Sidewall Depthin Maximum Bed Depthin Bed Widthft Bed Lengthft Designed Bed Depthin Mound: Dispersal Area 750.0 ft, Bed Length 125.0 ft Bed Width 6.0 ft Absorption Width 15.6 ft Clean Sand Lift 1.0 ft Berm Width (0-1%) ft Upslope Berm Width 9.8 ft Downslope Berm 13.6 Ift Endslope Berm Width 11.7 ft Total System Length 148.4 ft System Width 29.4 ft Contour Loading Rate 7.2 gaup At -Grade: Bed WidthF-----]ft Contour Loading Rategal/ft Endslope Bermft Design Summary Page Bed Lengthft Upstope Bermft System Lengthft Finished Heightft Downslope Bermft System Widthft Level Et Equal Pressure Distribution No. of Laterals Perforation Spacingft Perforation Diameter 114 in Lateral Diameter1.50 in Min Dose Volume 48 gal Max Dose Volume 225 gal (Non -Level Lateral 1 Lateral 2 Lateral 3 Lateral 4 Lateral 5 Lateral 6 and Unequal Pressure Distribution Length Ift)� i (in) (ft) (in) �gpd X �mg/L X 8.35 ".1,000,00= lbs. Minimum Dose Volume gal Maximum Dose Volume gal Elevation Pipe Size Pipe Pipe Perf Size Spacing Spacing �mg/L X =gpd x 8.35 = 1,000,000 = �ftz I 10. Comments/Special Design Considerations: I i (ft) I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Dale Denn 583 5/8/2018 (Designer) (Signature) (License # (in) Volume (gal/ft) Length Ift)� i (in) (ft) (in) �gpd X �mg/L X 8.35 ".1,000,00= lbs. BOD/day Lbs. BOD To Be Removed: PreTreatment Technology: *Must Meet or Exceed Target Disinfection Technology: *Required for Levels A Et B C. Organic Loading to Soil Treatment Area: �mg/L X =gpd x 8.35 = 1,000,000 = �ftz I 10. Comments/Special Design Considerations: I i 9. Additional Info for At -Risk, HSW or Type IV Design A. Starting BOD Concentration = Design Flow X Starting BOD (mg/L) X 8.35 _ 1,000,000 �gpd X �mg/L X 8.35 s 1,000,001 _ lbs. BOD/day B. Target BOD Concentration = Design Flow X Target BOD (mg/L) X 8.35 _ 1,000,000 �gpd X �mg/L X 8.35 ".1,000,00= lbs. BOD/day Lbs. BOD To Be Removed: PreTreatment Technology: *Must Meet or Exceed Target Disinfection Technology: *Required for Levels A Et B C. Organic Loading to Soil Treatment Area: �mg/L X =gpd x 8.35 = 1,000,000 = �ftz = lbs./day/ ft' 10. Comments/Special Design Considerations: ) (Date) Mound Materials Worksheet riu/eu iu: v 04.17.2018 A. Rock Volume: (Rock Below Pipe + Rock to cover pipe (pipe outside dia . -z inch)) X Bed Length X Bed Width = Volume ( in + I I') 1 Z 125.0 ft X 6.0 ft = 562.5 ft Divide ft' by 27 ft3/yd' to calculate cubic yards: 562.5 ft' _ 27 = 20.8 yd3 Add 30% for constructability: 20.8 yd3 X 1.3 = 27.1 yd3 B. Calculate Clean Sand Volume: Volume Under Rock bed: Average Sand Depth x Media Width x Media Length = cubic feet 0.8 ft X 6.0 ft X 125.0 ft =F 630.0 ft3 For a Mound on a slope from 0-1% Volume from Length = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Length) ft 1) X X Oft = Volume from Width = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Width) �ft - 1) X X Oft = Total Clean Sand Volume: Volume from Length + Volume from Width + Volume Under Media ft' + E_== ft3 ft' _ [::::=ft' For a Mound on a slope greater than 1% Upslope Volume: ((Upslope Mound Height - 1 ) x 3 x Bed Length) - 2 =cubic feet (( 2.8 ft - 1) X 3.0 ft X 125.0 ) + 2 = 328.1 ft, Downslope Volume: ((Downslope Height - 1) x Downslope Absorption Width x Media Length) - 2 = cubic feet I ( 2.9 ft - 1) X 9.6 ft X 125.0 ) - 2 = 1158.0 ft' Endslope Volume: (Downslope Mound Height - 1) x 3 x Media Width = cubic feet ( 2.9 ft - 1 ) X 3.0 ft X 6.0 ft = 34.7 ft Total Clean Sand Volume: Upslope Volume + Downslope Volume + Endslope Volume + Volume Under Media 328.1 ft, + 1158.0 ft + 34.7 ft, + 630.0 ft' = 2150.9 ft3 Divide ft' by 27 ft'/yd3 to calculate cubic yards Add 30% for constructability: C. Calculate Sandy Berm Volume: 2150.9 ft' a 27 = 79.7 yd3 79.7 yd'' X 1.3 = 103.6 yd3 Total Berm Volume (approx) : ((Avg. Mound Height - 0.5 ft topsoil) x Mound Width x Mound Length) - 2 1 2.8 0.5 )ft X 29.4 ft X 148.4 ) + 2 =1 5109.1 ft' Total Mound Volume - Clean Sand volume -Rock Volume = cubic feet 5109.1 ft - 2150.9 ft, - F 562.5 ft' = 2395.7 ff3 Divide ft by 27 ft'/yd'to calculate cubic yards: 2395.7 ft3 . 27 = 88.7 yd3 Add 30% for constructability: 88.7 yd3 x 1.2 115.3 yd3 D. Calculate Topsoil Material Volume: Total Mound Width X Total Mound Length X .5 ft 29.4 ft X 148.4 ft X 0.5 ft = 2183.4 W Divide ft' by 27 ft3/yd'to calculate cubic yards: 2183.4ft' a 27 = 80.9 yd3 Add 30% for constructability: 80.9 yd' x 1.3 = 105.1 yd3 Basic Pump Selection Design Worksheet .-s . _ 1. PUMP CAPACITY Project ID: v 04.17.2018 Pumping to Gravity or Pressure Distribution: Pressure 1. If pumping to gravity, enter the gallon per minute of the pump- GPM (10 - 45 gpnl 2. If pumping to a pressurized distribution system: 29.0 GPM 3. Enter pump description: Demand Dosing 2. HEAD REQUIREMENTS A. Elevation Difference 16 ft betwe- n pump and point of discharge' B. Distribution Head Loss: 17-5-1ft C. Additional Head Loss: ft rdue to special equipment. etc.I - - - - ------ -- ---- o...c- . r,.tior, Lois in P:astic Pape per :00` Distribution Head Loss .r,i avity Distribution- Ott I'ressule Distrihution f3w don A4inrnn un ias'erane li:+ad _ - - -.- Vaht!, on Pr essurc Distributiun :vor kslrcct - _ Minrtnum Average Head I Distribution Head Loss moi[ 61L D. 1. Supply Pipe Diameter: 2.0 in I =i- -- - - --- 2. Supply Pipe Length: 230 ft ,-_ Io. 4_ 15 = E. Friction Loss in Plastic Pipe per 100ft from Table I: Friction Loss = 2.23 ft per 100ft of pipe - F. Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge point. Estimate by adding 25`t to supply pipe length for fitting loss. Supply Pipe Length (D.2) X 1.25 = Equivalent Pipe Length -, 730 ft X 1.25 2875 ft G. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Line E) by the Equivalent Pipe Length (Line F) and divide by 100. Supply Friction Loss = 2.23 It per 100lt X 287.5 ft - 100 = 6.4 ft H. Total Head requirement is the sum of the Elevation Difference (Line A6 the Distribution Head Loss (Line B). Additional Head Loss (Line Q. and the Stpply Friction Lass (Line G I 16.0 ft 5.0 It H . 6.4 ft = 27.4 ft 3. PUMP SELECTION A pump most be selected to deliver at least 29,0 GPM (Line 1 or Line 2) with at least 27,4 feet of total head. Comments: - s�w.ai Pencu6rn _A � J Pressure Distribution Design Worksheet ■MZj MINNESOTA POLLUTION ■ ±x CONTROL AGENCY Project ID: v 04.17.2018 1. Media Bed Width: 10 ft 2. Minimum Number of Laterals in system/zone = Rounded up number of [(Media Bed Width - 4) _ 3] + 1. [( 10 4 ) _ 3] + 1 =3 laterals Does not apply to at -grades 3. Designer Selected Number of Laterals: laterals Cannot be less than line 2 (accept in at -erodes) 4. Select Perforation Spacing: F 3.0 ft 5. Select Perforation Diameter Size: F 1/4 in — 6. Length of Laterals = Media Bed Length - 2 Feet. } tl r 38 - 2ft = 36 ft Perforation can not be closer then 1 foot from edge. 7 Determine the Number of Perforation Spaces. Divide the Length of Laterals by the Perforation Spacing and round down to the nearest whole number. Number of Perforation Spaces 36 ft : ft = 12 Spaces Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces. Check table 8. below to verify the number of perforations per lateral guarantees less than a 10% discharge variation. The value is double with a center manifold. Perforations Per Lateral = 12 Spaces + 1 = 13 Perfs. Per Lateral y Total Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of Perforated Laterals. 13 Perf. Per Lat. X C�Number of Perf. Lat. = 39 Total Number of Perf. 10. Select Type of Manifold Connection (End or Center): End 11. Select Lateral Diameter (See Table): 1-50 in Auknum Humber of Perforations Per Lateral to Guarantee (10% Discharge vuiatian Inch Fertorabons V32 Inch Perforations Perforation Spacing (Feet) 1 Pipe Diameter (Inches) 1 W 1 s1 2T6'0 Perforation Spacing (Feet) 1 Pipe Diameter (Inches) 114 11: 2 3 2 10 f3 f8 30 2 It 16 21 34 68 j11 8 12 16 28 54 21ok 10 1.1 20 32 64 3 8 12 16 25 52 3 9 14 19 30 60 3i 16 Inch Perforatiom 1 /8 Inch Perforations Perforation Spacing (Feet) I Pipe Diameter (Inche) IA tv: 2 3 Perforation Spacing (Feet) Pipe Diameter (Ind es) 1 1W 111 2 3 2 12 18 26 46 87 2 21 1 33 1 44 74 149 211 12 17 24 40 8o 211 20 30 41 69 135 3 12 16 22 1 37 1 75 3 20 29 38 64 128 y Total Number of Perforations equals the Number of Perforations per Lateral multiplied by the Number of Perforated Laterals. 13 Perf. Per Lat. X C�Number of Perf. Lat. = 39 Total Number of Perf. 10. Select Type of Manifold Connection (End or Center): End 11. Select Lateral Diameter (See Table): 1-50 in Pressure Distribution Design Worksheet 12. Calculate the Square Feet per Perforation. Recommended value is 4-11 ft' per perforation. Does not apply to At -Grades a. Bed Area = Bed Width (ft) X Bed Length (ft) 10 ft X 38 ft = 380 ft b. Square Foot per Perforation = Sed Area divided by the Total Number of Perforations. 380 ftz 39 perforations = 9.7 ft/perforations 13. Select Minimum Average Head: 1.0 ft 14. Select Perforation Discharge (GPM) based on Table: 0.74 GPM per Perforation 15. Determine required Flow Rate by multiplying the Total Number of Perfs. by the Perforation Discharge. 39 Perfs X 0.74 GPM per Perforation = 29 GPM 16. Volume of Liquid Per Foot of Distribution Piping (Table 11) : 0.110 Gallons/ft 17. Volume of Distribution Piping = = [Number of Perforated Laterals X Length of Laterals X (Volume of Liquid Per Foot of Distribution Piping] X 36 ft X 0.110 gal/ft = 11.9 Gallons 18. Minimum Delivered Volume = Volume of Distribution Piping X 4 11.9 gals X 4 = 47.5 Gallons Comments/Special Design Considerations: Table 11 Volume of Liquid in Pipe Pipe Liquid Diameter Per Foot (inches) (Gallons) 1 0-045 1.25 0.078 L5 0.110 2 0.170 3 0.380 4 0.661 Pump Tank Design Worksheet (Demand Dose) M DETERMINE TANK CAPACITY AND DIMENSIONS project ID: v 04 17 2018 1. A. Design Flow rDesign sum. 1A1- GPD 8. Min. required pump tank capacity: 1500 Gal C.Recommended pump tank capacity: I IGat �J 2. A. Tank Manufacturer: Brown Wilbert S. Tank Model: C. Capacity from manufacturer: 1500 Gallons Note: Design calculations are based on this specific tank. Substituting a different tank model will change the pump D. Gallons per inch from manufacturer: 30.0 Gallons per inch ffoat or timer settings. Contact designer if changes are necessary. E. Liquid depth of tank from manufacturer. 49.5 inches DETERMINE DOSING VOLUME 3 Calculate Volume to Cover pomp (The inlet of the pump must be at least 4 -inches from the bottom of the recommended) pump tank & 2 inches at water covering the pump is (Pump and block height + 2 inched X Gallons Per Inch (2C or 3F1 I 13 in + 2 inches) X30.0 Gallons Per Inch = 450 Gallons 4 Minimum Delivered Volume = 4 X Volume of Distribution Piping: - Line 17 of the pressure Distribution or Line I i of Nan -level Gallons (minimum dose) 5 Calculate Mmomum Pumpout Volume 125% of Design Flow) Design Flaw: I 9W t GPD X 0.25 = 225 Galtans (maximum dose) 6 Select a pumpout volume that meets both Minimum and Maximum: 224 Gallons- 2 Calculate Doses Per Day =Design Flow s Delivered Volume �gpd . zza gal = 4.02 Doses 8 Calculate Drawback: - Volum e of -Liquid in f Pipe Pipe Liquid A. Diameter of Supply Pipe= 2 inches Diameter Per Foot (inches) (Gallons) e. Length of Supply Pipe - 2I0 feet 1 0.045 C. Volume of Liquid uid Per Lineal Foot of Pi Pe = 0.170 Gallons/fl D. Drainback = Length of Supply Pipe X Volume of Liquid Per Lineal Foot of Pipe ft X o.vD2 gat/ft = 39.t Gallants 9. Total Dosing Volume = Delivered Volume plus Dramback 1'25 0'078 1.5 0.110 0.170 3 0.380 0.661 2244 gal , 39.1 gat = 263 Gallons 10. Minimum Alarm Volume = Depth of alarm 12 or 3 inchesi X gallons per inch of tank �in X Io.O gal/in = 90-0 Gallons DEMAND DOSE FLOAT SETTINGS 11. Calculate Float Separation Distance using Dosing Volume. Total Dosing Volume /Gallons Per Inch 263 gat- 30.0 gallin= 8.8 Innes _ __-- 12- Measuring from bottom of tank: A- Distance to set Hang Off Float = Pump - block height + 2 inches Inches far Dose: 8.8 in t3 in + r-� in = 16 Inches B. Distance to set Pump On Floot=Distance to Set Pump -Off Float • Float Seporatfon Distance 16 in 8.8 in = 25 Inches C. Distance to set Alarm Float - Distane to set PMP -On Float + Alarm Depth 12-3 inchesi Alarm Depth 27.8 :n Pump On 24.8 in _ _v, r ca; Pump Off 16.0 in 25 in . 3.0 in= 28 Inches American Land Title Association ALTA Settlement Statement - Combined Adopted 05-01-2015 File Number: Print Date & Time: Escrow Officer: Settlement Location: 18376 5/26/2018 1:27 PM Terri Trombley 14800 Galaxie Avenue Suite 300 Apple Valley, MN 55124 On -Site Title, LLC 14800 Galaxie Avenue Suite 300 Apple Valley, MN 55124 Property Address: Property Address 821 Creekwood Street Chaska, Minnesota 55318 Settlement Date: 5/29/2018 Disbursement Date: 5 18 Additional dates per state requirements: 5/29/2018 SCANNEL' r: Seller Description PIN Debit Credit 25.0260900 Financial Metes & Bounds The West 152.3 feet of the East 355.85 feet of the North 286.0 feet of the South 572.0 feet of the c�Q'Yt! Southeast Quarter of the Southeast Quarter (SE 1/4 of SE 1/4) of Section 26, Township 116, Range Deposit 23, Carver County, Minnesota. Together with an easement for road purposes over the West 33 Loan Amount feet of the East 203.55 feet of the South 572.0 feet and over the South 33 feet of the East 170.55 $513,575.87 Proceeds payable ("trust receiving no proceeds) to Terry Carlson and Gaye E. Carlson feet. uyer: Gene Richard Sipprell -17734 Sheiffield Lane, Eden Prairie, MN 55346 $468.87 County Taxes 5/29/2018 to 7/l/2018 Lois Renae Sipprell -17734 Sheiffield Lane, Eden Prairie, MN 55346 Se er: Gaye E. Carlson Revocable Trust U/A dated 7/6/2001, an undivided 1/2 interest - 821 Creekwopd Drive, Chaska, MN 55318 Terry Carlson - 821 Creekwood Drive, Chaska, MN 55318 Gaye E. Carlson - 821 Creekwood Drive, Chaska, MN 55318 Lender: Bell Bank, ISAOA - 5500 Wayzata Blvd., Suite 300, Minneapolis, MN 55416 Settlement Date: 5/29/2018 Disbursement Date: 5 18 Additional dates per state requirements: 5/29/2018 SCANNEL' r: Seller Description r/Buyer Debit Credit a Credit Financial $570,000.00 Sales Price of Property $570,000.00 Deposit $10,000.00 Loan Amount $390,000.00 $513,575.87 Proceeds payable ("trust receiving no proceeds) to Terry Carlson and Gaye E. Carlson Pro rations/Adjustments $468.87 County Taxes 5/29/2018 to 7/l/2018 $468.87 Loan Charges to Bell Bank, ISAOA Ir........:....e�. oee •,. nen m..� i<ene I e.nr ,.n [Property Card Parcel ID Number 250260900 Taxpayer Information GAYE E CARLSON REV TRUST & TERRY C/O GAYE ELISE POPE CARLSON Address 821 CREEKWOOD DR CHASKA, MN 55318-9643 Property Address Address 821 CREEKWOOD DR City CHASKA, MN 55318 Parcel Information Uses Res 1 unit GISAcres 1.0 Net Acres Deeded Acres 1.0 Plat Lot Block Tax Description P/O SE1/4 SE1/4 W 152.3' OF E 355.85' OF N 286' OF S 572' Building Information Building Style 1 Story Frame Above rade 207 Bedrooms 5 Green Acres N Finished S Ft 579,200.00 Year Built 1975 Garage Y Building Miscellaneous Information School District 0112 Watershed District WS 064 RILEY PURG BLUFF Homestead N Green Acres N Ag Preserve I N Assessor Information Estimated Market Value 2017 Values (Payable 2018) 2018 Values (Payable 2019) Last Sale Land 579,200.00 583:200.00 Date of Sale 6/9/2005 Building 5334.000.00 S377.600.00 Sale Value $532.500.00 Total $413200.00 5460.800.00 SCANNED I t.9 931.7 FND IP /CAP DESTROYED 931.4 930.9 930.6 �- - - -� ---� 930 C 931.5 K F.,' 930.1 931.1 D \ 92&4 FND PK NAIL / 1/2' x 3 . 930.5 930.5 929.9 - 930.5 930.2 4 X 929.9 SDP VV \ ® FND 1P 1/XNORTH LINE OF THE -, 20" 193o.9 SOUTH 572.00 FEET 929.6 S87056'08"E 152.45 x929.5 m 40344 30.0 930.2 x 929.3 za° \ INV \ ; 92&8 ROCK 928.1 928.4 I x 928..11 I • /I I 928.3 FND PIN 927.8 �Q i930 .W' P28' '\OC9281 x 928.3 R6 �92 1 x m 929.0 ,A ..x / x 927.3 j x\930.2 i w 927-2 / ' I SAND $ SAND ' 927.0 1 928.7 BAS 30' ROCK 1'N - \ 927.3 - I x 9267 / 927.0 I 928.9 \ 'k926.6x 926.6 .+ 1 x x 928.0 SAND yy x 926. \ I SAND 930.3 926-2 / ' ♦ EQ 1 928.4 \ \� PRSQEPSG ROCK pROp� \ SAND I \ 930.4 F-°� xee�7_5 X929.00 \`SFA �S�O `928.8 \ j%{20" ROCK I c V1A925.4 \ I I K/928.7 929.5 x� . \ / \�ROCK X 925.8 �, 11' � 12, / I 929.2 .929.1 930.7 ..� _ x 1927.3- x 928.7 ROCK 929.3 , x 929.3 92 1 I \ / 929.9 9�"GG'Qjj 925.9 926.7 1 /SAND``9j, / C1Q �/:/ 1 ROCK \ ` 1 x928.2 x 928.6 / QQ'N 1 I 929.3 X9 1 26.0 i 92&1 QQ�SC�Q I , /PIN 14'/ \ jROCK I -. 930.Yi x 29.8 x x 929.4 x 929.4 \, I5' PINI "j00'' 926.1 1 96627.5 \ 929.2 .929.2 929.5 ' i -.. \� (N 20' -__ ROCK 929 1 9______� ___- 12 �b 1 1 1 ----- 929.7 ________________p.______4. � � x929.7 � 929.8 -�- 152.30 -------------- 912 w 912.8 1 j 9%3 1 POP 12' \ d 4 I x929.5 / 930.4 . I x 929-8 - 1 1 I - x I 10' _________ _ _________, -�---7-�------------------ - --- -I----------------- 355.85 ONO r- 1 j I 1 t3a0 0929.9 m < / 1 I \ o 931.4 o - /1 V I ito / A \ N tb °' / <f xs30.d OD N ¢ 929.8 /; x•8E8,� a`\ , 1 d I r' 930.7 X x 630.700 to 0 882.0 o'er 'o, 1 / 930.., v' '1 POP 10' 04 Z J, (V 4 I I� L0 LI -NI •` r- 929.9 o E* 00 CO 928.1 ro I 930.0 o �� 3 x 930.1 \ tri d I / -930.3 ¢ 1 it T / O 1 1 x 930.6 r- m / L_ V 1 0 / POP b' eO z o, I / x ii 1 d 930.1 to w 930.1 /881.5 I x911.& Z 9z7.a I '�/ \\\ 0 �tn.� x A ��\ x 93 I 0 W 1/ 931.6 / I x x 929.8 a Z /p i I ig x i� x 930.6 930.2Pop •• QO x 931.1 tr%b x905.3 I 1927.6 x IN I 1 15' h�--- 1 ^ „ I x 931.0 930.8 930.7 L V �Y I 1 d Q; x 931.4 931.8 931.5 _____-3y-------- / Y 9275 I 1 xl I 931.3932.0 869-7 I I I I I 9 1.6 - 932.2 1 S 32.1 m V x A l I I STEP - x 9 x / ^ I a 931.5 932-0 8322 9 931.2 924j,A x 926.1 i 9188 931.6 30.2 931.0 I -930.1 931.3 x924.4 ; - I 931.5 m 931.4 L- I L s h "922.5 �DECK �3W931.2 886.6 PSR 10.x 924.5 925 5 92- --- 1 x930.5 �y� - t_ 93 4 I _ 'fir 920.1 N >-_ 26-1 a 0 930.8 I 931.5 -- �'�\_ 930.4 l -------34.4 ---- - 26.0 - - - --- 9a ------ - 93cs p / I x923.4 9.91 I 932.8 93222.21 51.2 ^r I x 932.1 x 920.0 >� > y ' j'�92 A 1 9321 O /F 865.4 j 0921.5 1 932.4 932.2 932 x 931.3 -930.6 931.0 ' I m OUSE 932.5 ` 30,2 930.7 O PIRdP TANK I o I N 9329- - IS 9 932.1 / x 929.7 �\ 930.7 I i 923.6 to 1 932.5 932.3 x�x I = 886.1 I I v N PI 2 I FFE= x 932.3 x 9324 I x 930.3 / \ 930.7 N m I S 933.7 I \ \ l 920. x 1 932.9 ___________9350_________ 921.90 \ - g 4.1 I x 931.9 x LS / x 929J, 930 �1{ 4.7 01�O - I x 9320 011K 14' x 929.1 _50_ ______ ,vim 930.5 i , ________% x24.5 0 � x931.8 exi ® / x 921'9 S. TANK ` ti 889.6 923.7 aw O1 1 44.4 931.0 + I �a 931.4 C'lElM 22- 930.0 \\\ t1 I I 0931.4 OAK t2` x 929.2 /I \ , I 925.0 x 927.4 _ y X 922.8 x 924.2 I j \ J / )929.5 x 929.1 92L1x 931.0 1 1` vi1x 925.D 927.5 a-4 ,7 . 11 T 929 �x 929.9 / x 924.2 1 927.0 0 ��\ / y 921.7 � j o FlFb40344 x 930.0 18" / 924.7 p -f p FIP 40344 930.3 1 >(20.� 9222 SO / 056108"t - 929.3 / l C 929_O I ) s 152.45 FND IP 3/4" I / szs.a 892.4 �� 924.0 +---� x x� x z� x 928.8 x 928.7 1929.3 1 \ _ 1 _WOOD FENCE x 929.3 x -929.8 � 929.5 x 928.7 -928.8 } 930.2 IJ / x 898.4 I L 931.4 DESCRIPTION OF PROPERTY SURVEYED (Per W.D. Doc. No. A532084) The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572.0 feet of the Southeast Quarter of the Southeast Quarter (SE 1/4 of SE I/4) of Section 26, Township 116, Range 23, Carver County, Minnesota. I STANDARD NOTES I) Site Address: 821 Creekwood Dr, Chanhassen, MN 2) A tide opinion was not furnished to the surveyor as part of this survey. Only easements per the recorded plat are shown unless otherwise denoted hereon. 3) Parcel Area Information: Gross Area: 43,600 s.f. - 1.001 acres 4) Benchmark: Elevations are based on MN/DOT Geodetic Station Name: 1009 A which has an elevation of 911.14 feet (NAVD88). 5) Zoning Information: The current Zoning for the subject property is A2 (Agricultural Estate District) per the City of Chanhassen's zoning map dated July 24, 2017. The setback, height, and floor space area restrictions for said zoning designation were obtained from xxuavwcmaxx found on their web site on the date of xxxxxx and are as follows: Structure Setbacks - Front: 50 feet Side: 10 feet Rear. 50 feet Buff: 30 feet Height: 35 feet/ 3 stories Hardcover: 20 percent of lot area Please note that the general restrictions for the subject property may have been amended through a city process. We could be unaware of such amendments if they are not in a recorded document provided to us. We recommend that a zoning letter be obtained from the Zoning Administrator for the current restrictions for this site. We have not received the current zoning classification and building setback requirements from the insurer. 6) Utilities: We have shown the location of utilities on the surveyed property by observed evidence only. There may be underground utilities encumbering the subject property we are unaware. Please note that we have not placed a Gopher State One Call for this survey. There may or may not be underground utilities in the mapped area, therefore extreme caution must be exercise before any excavation takes place on or near this site. Before digging, you are required by law to notify Gopher State One Call at least 48 hours in advance at 651/454-0002. 7) Grading must maintain a minimum 2% slope gradient to accommodate positive drainage. 8) All set offset irons are measured to hundredths of a foot and can be used as benchmarks for constmction. -----_ 9) The proposed driveway shown is conceptual only and does not purport to show exactly how the driveway shall be built. 10) Proposed grades shown adjacent to building foundation refers to top of black dirt. 11) Verify sanitary service invert prior to any concrete work Q N d 11. F I 0 wN \ Z Z U N � W O i i I I FND IP I/2" -� 933.1 •O CAST IRON MONUMENT ® CATCH BASIN 4 FLARED END SECTION M GATE VALVE < GUY WIRE 1 'Cr HYDRANT O SURVEY MONUMENT SET • SURVEY MONUMENT FOUND n,(.(NF_C'• Q C I SURVEY CONTROL POINT ® LIGHT POLE N N 1 O SANITARY MANHOLE Q I T 0 SIGN TE r GROUND ELEVATION ® C © .Y YARD LIGHT A A/C UNIT e -amu- OVERHEAD UTILITY r� c� TREE DECIDUOUS i�fH##hFFFF} RAILROAD TRACKS M TELEPHONE MANHOLE P E TELEPHONE PEDESTAL >� STORM SEWER o� TRAFFIC SIGNAL - TEL- TELEPHONE UNDERGROUND ® UTILITY MANHOLE •O CAST IRON MONUMENT ® CATCH BASIN 4 FLARED END SECTION M GATE VALVE < GUY WIRE 1 'Cr HYDRANT O SURVEY MONUMENT SET • SURVEY MONUMENT FOUND n,(.(NF_C'• Q CONTOUR EXISTING SURVEY CONTROL POINT - - CONTOUR PROPOSED LIGHT POLE I rDi� POWER POLE 1 O SANITARY MANHOLE Q SANITARY CLEANOUT GAS METER SIGN 972.5 GROUND ELEVATION ® STORM DRAIN © STORM MANHOLE YARD LIGHT _. A/C UNIT TREE CONIFEROUS -amu- OVERHEAD UTILITY 929.7 1WELL FIELD CREW NO. BY DATE REVISION I hereby certify that this survey, plan or report was prepared by me or under my direct supervision and that I am a duty Licensed TW P:116-RGE.23SEC.26 USE (INCLUDING COPYING, DISTRIBUTION, AND/OR Land Surveyor under the laws of the State of Minnesota. Eµ8 SV Carver County AT, BB USE OF INFORMATION) OF THIS PRODUCT IS y \10 '4L�� STRICTLY PROHIBITED WITHOUT SATHRE-BERGQUIST, INC.'s DRAWN EXPRESS WRITTEN AUTHORIZATION. USE WITHOUT SAID Dated this 3rd day o nly, 2018. Wr2 -- �, SATH R E -B E RG Q U I ST, INC. JJA AUTHORIZATION CONSTITUTES AN ILLEGITIMATE USE AND CHECKED SHALL THEREBY INDEMNIFY SATHRE-BERGOUIST, INC. OF p ..,. 150 SOUTH BROADWAY WAYZATA, MN. 55391 (952) 476-6000 CHASKA, ALL RESPONSIBILITY. SATHRE-BERGQUIST, INC. RESERVES 1 �` y DBP THE RIGHT TO HOLD ANY ILLEGITIMATE USER OR PARTY �� C�7 N �? W W W.SATHRE.COM MINNESOTA DATE LEGALLY RESPONSIBLE FOR DAMAGES OR LOSSES David B. R Pemberton, PLS Minnesota License No. 40344 Cit' 0 7/2 3201 8 RESULTING FROM ILLEGITIMATE USE. P�berton @ RS PLP sathre.com ^'O RSA Bearings are based on the Carver County Coordinate System (NAD 83 - 1986 adi.) 20 10 0 10 20 40 SCALE IN FEET SURVEY LEGEND WOE WALKOUT ELEVATION BITUMINOUS FFE FIRST FLOOR ELEVATION BUILDING SETBACK UNE CFE GARAGE FLOOR ELEVATION CTV CABLE TV TOF TOP OF FOUNDATION ELEV. CONCRETE CURB LOE LOWEST OPENING ELEV. CONCRETE 17 CABLE TV PEDESTAL CONTOUR EXISTING ELECTRIC TRANSFORMER - - CONTOUR PROPOSED ELECTRIC MANHOLE GUARD RAIL ELECTRIC METER DT DRAIN TILE GAS METER - - ELECTRIC UNDERGROUND GAS VALVE -x-x- FENCE HAND HOLE Fo FIBER OPTIC UNDERGROUND SOIL BORING GAS UNDERGROUND TREE CONIFEROUS -amu- OVERHEAD UTILITY r� c� TREE DECIDUOUS i�fH##hFFFF} RAILROAD TRACKS M TELEPHONE MANHOLE - > SANITARY SEWER D TELEPHONE PEDESTAL >� STORM SEWER o� TRAFFIC SIGNAL - TEL- TELEPHONE UNDERGROUND ® UTILITY MANHOLE -UTL- UTILITY UNDERGROUND ❑U UTILITY PEDESTAL I WATERMAIN FILE NO. CERTIFICATE OF SURVEY 82490-001 PREPARED FOR: 1 GENE SIPPRELL ''ED 1 FND IP / CAP DESTROYED 931.7 DESCRIPTION OF PROPERTY SURVEYED 931.4 930.6 (Per W.D. Doc. No. A532084) 930.9 -------------- 930A The west 152.3 feet of the east 355.85 feet of the north 286.0 feet of the south 572.0 feet of the Southeast Quarter of the Southeast Quarter (SE 1/4 of -- -- -____ SE 1/4) of Section 26, Township 116, Range 23, Carver County, Minnesota. 931.5 931.1 C 930.1 EK � L -91 OOD j� 7-t INV= I STANDARD NOTES FND PK NAIL / 1/2' x 3 . 930.5 _ 930 5 1/R I \ E 928.4 929.9 0.4 � -____________� 930.5 930.2 \@ �930� z 929.9 SOP I,- END V FND IP I/'2 NORTH LINE OF THE 20" \ r928.5 TH 572.00 FEET 929.6 S87056'08"E 152.45 x929.5 �d 9.5 AP 4344 30.0 930.2 122 INV 1 928.8 ROCK 1xCl1928.4 928.1 � 928.3 FND PINCH TOP 3/4` SWI I \ EO 1 16 \ROCK 927.8/ PROP\C 9 927.6 x - xx 929.1 930.11 C� i 930"2 928.1 928.3 \ SE � 1 � x 927.2 1 929.0 a / 927.2 x ; x 927.3 j ' I \ 930.2 �.✓ {� - I ` SAND $ SAND 927.0 928.7 BAS 30' 1 ROCK -� \111926.6 927.3 1 -9263 . 927.0 1 928.9 \ x 928.9 x 92,9.2 \ \ SAND x 926.8 \ I SAND / I 930.3 9, 926.2 - / OSEo 1 928.4 \ ROCKz- . 0 SAND \ 930.4 X929.0 \ FAT S�O `928.8 \ 020' ROCK C 928.7 929.5 \ \ 925.4 \ - I - ROCK ( \ 930.7 x 925.8 6� j� 12' / I ROCK 929.2 x 929.1 i 14' x I I �-✓ 927.3 x 928. 929.9 929.3 -929.3 926.7 I A \� c' 925.9 ('i � � � , SAND . r�j�� ' f ROCK & x 928.2 x 928.6 / OQO'Q /�i 929.3 � \ ; x 926.0 928.1 I I 1 9PIN30 1'4'�y/ I \ / I /PIN 9.�uwl x 929.4 �.55. 949.2 X. .929.2 %93VVU x 29-8 x929.5 929.4 POP 12' 9926.1 1 IN 20" �� \ 929.5 1 ROCK 929.9 \ 929.7 k ___ _ -------q'------�-------�---- 152.30 -- -------� --- MAP I„k----------- W x 912.8 q �✓930.3x 929.7 POP 12" \ / 929.8 1 I x 929.5 'O� 1 I 930.4x x99.8 -1 J -----� - �------- �---ti-�--------�-------------- -II ----------------------------- ---- 355.85---------------------- � 1 w �� .0 929.9 I i/ 9 ' 00 -X 1 r ; x 930 Q 00 { 929.8 N/ G 1 p 930.7 A N �\ $ 882.0 / / J / �/ 8�rn i �1� tr_ 930.9 1 00 i x r_7 \ 9 .9POP l0" C-4 o CNI if) 928.1 930.0 �- C14\ Cil w x 930.1 tC> a / x 930.3 930.6r POP 10' -to Z �' a I 930.1 N\ w r x 930.1 /881.5 / / x911.8 Z I 927.8 ; I �� \ 0 \Q� X \\8 x 930.3 Q x 9 POP 10' Z o `b 1� x I / x 930.6 930.2 1 -931.1 x 905.3 9927.6 x iI IS'__`_' --ham_ 931.0 930.7 931.5 930.8 A/ I I �YL V r\ 1 I 927.5 11 M x 931.4 931.8 ______ _______.�I x 931.3 2.0 x' II it 93 869.7 I 1I I II 1 _ 9316 932.2 m � I x I STEPS1332.1 z x 9 931.5 932.0 (3}22 � � 931.2 p/l V 1 %\ 1 I 924.1.% x 926.1 1 9�8.81 (331.6 1 30.2N N 9 '9 931.0 I x 930 1 I) Site Address: 821 Creekwood Dr, Chanhassen, MN r_ 1 924.4 -� GFE- I 931.5 O 931.4 !T' L_ I L _ I 15 _ DECK rn 932.3 u .. m I `L 931.2 X 866. 920 925., 92 _ U I x 930.5 a ' PIN - 1 lY 920.7 922.55 -9245 (_ g3 ' 920.1 r N > Y_ 26.1 I p 930.8 -�- - 2• `O - I 931.5 '35\ I 930.4 FND IP I/2" 34.4 21 933.1 _ ___ 93%.0 _______________ 930.6 / -------x 923.4 9.9; 26.0 932.21 5L2 p 920.0 1 ,o ; 932.8 32.1 932.2 x 665.4 I i I 092 > 1 I 2.2.1- O p 921.5 1 932.4 932.2 932.T x 931.3 x 930.6 931.0 I II x N 1 HOUSE N 932.5 I` 9302 930.7 O ' I4 9PUMP 23 6 TANK I b 1 932:9 z J1 / x 929.7 930.7 �0 932 30-4 2) A title opinion was not furnished to the surveyor as part of this survey. Only easements per the recorded plat are shown unless otherwise denoted hereon. 3) Parcel Area Information: Gross Area 43,600 s.£ - 1.001 acres 4) Benchmark: Elevations are based on MN/DOT Geodetic Station Name: 1009 A which has an elevation of 911.14 feet (NAVD88). 5) Zoning Information: The current Zoning for the subject property is A2 (Agricultural Estate District) per the City of Ch �hassese 's zoning map dated July 24, 2017. The setback, height, and floor space area restrictions for said zoning designation were obtained from xxxxxxxxxrzcux found on their web site on the date of xxxxxx and are as follows: Structure Setbacks - From: 50 feet Side: 10 feet C Rear. 50 feet Buff: 30 feet Height: 35 feet/ 3 stories N Hardcover. 20 percent of lot area Please note that the general restrictions for the subject property may have been amended through a city process. We could be unaware of such I O amendments if they are not in a recorded document provided to us. We recommend that a zoning letter be obtained from the Zoning - Administrator for the current restrictions for this site. We have not received the current zoning classification and building setback requirements from the insurer. 6) Utilities: We have shown the location of utilities on the surveyed property by observed evidence only. There may be underground utilities encumbering the subject property we are unaware. Please note that we have not placed a Gopher State One Call for this survey. There may or C may not be underground utilities in the mapped area, therefore extreme caution must be exercise before any excavation takes place on or near g ; �r rr this site. Before digging, you are required by law to notify Gopher State One Call at least 48 hours in advance at 651/454-0002. A= 7) Grading must maintain a minimum 2% slope gradient to accommodate positive drainage. 8) All set offset irons are measured to hundredths of a foot and can be used as benchmarks for construction. 9) The proposed driveway shown is conceptual only and does not purport to show exactly how the driveway shall be built 931.3 ---------- --------------- 931 4 10) Proposed grades shown adjacent to building foundation refers to top of black dirt I 11) Verify sanitary service invert prior to any concrete work. F of Q N U N � ar w� Z� J U N N 931.4 w O 93L6 7 r_ 1 924.4 -� GFE- I 931.5 O 931.4 !T' L_ I L _ I 15 _ DECK rn 932.3 u .. m I `L 931.2 X 866. 920 925., 92 _ U I x 930.5 a ' PIN - 1 lY 920.7 922.55 -9245 (_ g3 ' 920.1 r N > Y_ 26.1 I p 930.8 -�- - 2• `O - I 931.5 '35\ I 930.4 FND IP I/2" 34.4 21 933.1 _ ___ 93%.0 _______________ 930.6 / -------x 923.4 9.9; 26.0 932.21 5L2 p 920.0 1 ,o ; 932.8 32.1 932.2 x 665.4 I i I 092 > 1 I 2.2.1- O p 921.5 1 932.4 932.2 932.T x 931.3 x 930.6 931.0 I II x N 1 HOUSE N 932.5 I` 9302 930.7 O ' I4 9PUMP 23 6 TANK I b 1 932:9 z J1 / x 929.7 930.7 �0 932 30-4 (b, Bearings are based On the Carver County Coordinate System (NAD 83 -1986 adl.) 20 10 0 10 20 40 I WOE= .932.5 z I x 886.1 I N I �; 925.2 933.7 x 9323 x 932.4 x 930.3 / I \ 930.7 FEE=SCALE IN FEET 920. 932.9 --------------5e--------- \ SURVEY LEGEND x 921.9 ,- .1 1 4.1 s30. 1 I x 931.9 x 931.5 ,y,/, I x 929'7 CAST IRON MONUMENT WOE WALKOUT ELEVATION -_ __30 1 x 932.0 ` K 14' x 929.1 \1 BITUMINOUS 4.7 9ti5° m I '1 I I T ® CATCH BASIN FFE FIRST FLOOR ELEVATION - BUILDING SETBACK LINE Sp_ ______ 930.5 `.J 1 -- x x �8 ® 4 FLARED END SECTION GFE GARAGE FLOOR ELEVATION cry CABLE TV 621.9 S. TANK }� 5 931.a x / I I CONCRETE CURB 889.6 923.7 �' I 44.4 93L0 GUY VE TOF TOP OF FOUNDATION ELEV. 1 \ , 1 1931a ELM 22' 930.0 0 CONCRETE f� < LOE LOWEST OPENING ELEV. \ a 1 x 927 4 i `-X931.4 OAK 12" x 529 2 ii HYDRANT © CABLE TV PEDESTAL CONTOUR EXISTING 1 925.0 I I O SURVEY MONUMENT SET so CONTOUR PROPOSED \ 921.(� x 922.8 x 924 2 1 1 L_ x 931 0 / 929 5 / I • SURVEY MONUMENT FOUND ELECTRIC ELECTRIC TRANSFORMER GUARD RAIL x 929.1 -' 1s -a .:J �' I / SCANNFL Q ELECTRIC METER LE ---- DT pp N mix 925.0 927.5 I 8284 7 / SURVEY CONTROL POINT DRAIN TILE I 1 920.9 921.7 924.2 1 1 927.0 T j 'x 929.9 / o LIGHT POLE GAS METER ELECTRIC UNDERGROUND 4 FlI%ao3aa 924 9300 f x'218' c-1, POWER POLE GAS VALVE -X-x- FENCE z I I 20.5 922.2 0 1 u FlP 40344 c✓929.3 930.3 I g9\\ 152.45 929.0 HAND HOLE Fo -- FIBER OPTIC UNDERGROUND d 892A \ �� S87 56 08 E 1 FND IP 3/4" I 929.8 SANITARY MANHOLE \ X924.0 �-x x�x xi'�x�_f 928.818' SOIL BORING i x928.7 929.3 o SANITARY CLEANOUT GAS UNDERGROUND I SIGN b t N 1 _WOOD FENCE I I / TREE CONIFEROUS �D OVERHEAD UTILITY I I n 972.5 GROUND ELEVATION TREE DECIDUOUS ,T„T RAILROAD TRACKS x 9293I x 929.5 x 928'7 / OT TELEPHONE MANHOLE > x 929.8 I x 928.8 936.2 ® STORM DRAIN SANITARY SEWER T STORM MANHOLE STORM SEWER &98.4 1 YARD LIGHT O TELEPHONE PEDESTAL >: ( -- TRAFFIC SIGNAL TEF TELEPHONE UNDERGROUND L/ / © x i l T I ( ' L,V 1 ,� � � I� � � UNIT O UTILITY MANHOLE DrL UTILITY UNDERGROUND I Z_OA/C ' V WELL 929.7 I � WELL ❑D UTILITY PEDESTAL I WATERMAIN FIELD CREW NO. BY DATE REVISION I hereby certify that this survey, plan or report was prepared by me or under my direct supervision and that I am a dudy Licensed T WP:116-RGE.23SEC.26 FILE NO. USE (INCLUDING COPYING, DISTRIBUTION, AND/OR Land Surveyor under the laws of the State of Minnesota. FIS S(, AT, BB CONVEYANCE INFORMATION) OF THIS PRODUCT ; kL Carverrver �O1"� STRICTLY PROHIBITED WITHOUT SATHRE-BERGOUIST, INC.S CERTIFICATE OF SURVEY 82490-001 DRAIIYN T�� Fi- EXPRESS WRITTEN AUTHORIZATION. USE WITHOUT SAID Dated tlll6 3rd day ° n►y, 2018. = zt�A SAT H R E - B E R G Q U I S T INC. JJA AUTHORIZATION CONSTITUTES AN ILLEGITIMATE USE AND N C HASKA SHALL THEREBY INDEMNIFY SATHRE-BERGOUIST, INC. OF PREPARED FOR: CHECKEDo 150 SOUTH BROADWAY WAYZATA, MN. 55391 (952) 476-6000 s ALL RESPONSIBILITY. SATHRE-BERGOUIST, INC. RESERVES m "" �i DBP THE RIGHT TO HOLD ANY ILLEGITIMATE USER OR PARTY 'P �� W W W.SATHRE.COM MINNESOTA GENE SIPPRELL SCANNEDDATE LEGALLY RESPONSIBLE FOR DAMAGES OR LOSSES David B. Pemberton, PLS Minnesota License No. 40344 c'I' 07/232018 RESULTING FROM ILLEGITIMATE USE. pembertonQsathre.com FRS PSP 1 1 R. C � N N I O ITE 4 T Y C g ; �r rr A= ` "•.� A L ¢ ''1`13 P E (b, Bearings are based On the Carver County Coordinate System (NAD 83 -1986 adl.) 20 10 0 10 20 40 I WOE= .932.5 z I x 886.1 I N I �; 925.2 933.7 x 9323 x 932.4 x 930.3 / I \ 930.7 FEE=SCALE IN FEET 920. 932.9 --------------5e--------- \ SURVEY LEGEND x 921.9 ,- .1 1 4.1 s30. 1 I x 931.9 x 931.5 ,y,/, I x 929'7 CAST IRON MONUMENT WOE WALKOUT ELEVATION -_ __30 1 x 932.0 ` K 14' x 929.1 \1 BITUMINOUS 4.7 9ti5° m I '1 I I T ® CATCH BASIN FFE FIRST FLOOR ELEVATION - BUILDING SETBACK LINE Sp_ ______ 930.5 `.J 1 -- x x �8 ® 4 FLARED END SECTION GFE GARAGE FLOOR ELEVATION cry CABLE TV 621.9 S. TANK }� 5 931.a x / I I CONCRETE CURB 889.6 923.7 �' I 44.4 93L0 GUY VE TOF TOP OF FOUNDATION ELEV. 1 \ , 1 1931a ELM 22' 930.0 0 CONCRETE f� < LOE LOWEST OPENING ELEV. \ a 1 x 927 4 i `-X931.4 OAK 12" x 529 2 ii HYDRANT © CABLE TV PEDESTAL CONTOUR EXISTING 1 925.0 I I O SURVEY MONUMENT SET so CONTOUR PROPOSED \ 921.(� x 922.8 x 924 2 1 1 L_ x 931 0 / 929 5 / I • SURVEY MONUMENT FOUND ELECTRIC ELECTRIC TRANSFORMER GUARD RAIL x 929.1 -' 1s -a .:J �' I / SCANNFL Q ELECTRIC METER LE ---- DT pp N mix 925.0 927.5 I 8284 7 / SURVEY CONTROL POINT DRAIN TILE I 1 920.9 921.7 924.2 1 1 927.0 T j 'x 929.9 / o LIGHT POLE GAS METER ELECTRIC UNDERGROUND 4 FlI%ao3aa 924 9300 f x'218' c-1, POWER POLE GAS VALVE -X-x- FENCE z I I 20.5 922.2 0 1 u FlP 40344 c✓929.3 930.3 I g9\\ 152.45 929.0 HAND HOLE Fo -- FIBER OPTIC UNDERGROUND d 892A \ �� S87 56 08 E 1 FND IP 3/4" I 929.8 SANITARY MANHOLE \ X924.0 �-x x�x xi'�x�_f 928.818' SOIL BORING i x928.7 929.3 o SANITARY CLEANOUT GAS UNDERGROUND I SIGN b t N 1 _WOOD FENCE I I / TREE CONIFEROUS �D OVERHEAD UTILITY I I n 972.5 GROUND ELEVATION TREE DECIDUOUS ,T„T RAILROAD TRACKS x 9293I x 929.5 x 928'7 / OT TELEPHONE MANHOLE > x 929.8 I x 928.8 936.2 ® STORM DRAIN SANITARY SEWER T STORM MANHOLE STORM SEWER &98.4 1 YARD LIGHT O TELEPHONE PEDESTAL >: ( -- TRAFFIC SIGNAL TEF TELEPHONE UNDERGROUND L/ / © x i l T I ( ' L,V 1 ,� � � I� � � UNIT O UTILITY MANHOLE DrL UTILITY UNDERGROUND I Z_OA/C ' V WELL 929.7 I � WELL ❑D UTILITY PEDESTAL I WATERMAIN FIELD CREW NO. BY DATE REVISION I hereby certify that this survey, plan or report was prepared by me or under my direct supervision and that I am a dudy Licensed T WP:116-RGE.23SEC.26 FILE NO. USE (INCLUDING COPYING, DISTRIBUTION, AND/OR Land Surveyor under the laws of the State of Minnesota. FIS S(, AT, BB CONVEYANCE INFORMATION) OF THIS PRODUCT ; kL Carverrver �O1"� STRICTLY PROHIBITED WITHOUT SATHRE-BERGOUIST, INC.S CERTIFICATE OF SURVEY 82490-001 DRAIIYN T�� Fi- EXPRESS WRITTEN AUTHORIZATION. USE WITHOUT SAID Dated tlll6 3rd day ° n►y, 2018. = zt�A SAT H R E - B E R G Q U I S T INC. JJA AUTHORIZATION CONSTITUTES AN ILLEGITIMATE USE AND N C HASKA SHALL THEREBY INDEMNIFY SATHRE-BERGOUIST, INC. OF PREPARED FOR: CHECKEDo 150 SOUTH BROADWAY WAYZATA, MN. 55391 (952) 476-6000 s ALL RESPONSIBILITY. SATHRE-BERGOUIST, INC. RESERVES m "" �i DBP THE RIGHT TO HOLD ANY ILLEGITIMATE USER OR PARTY 'P �� W W W.SATHRE.COM MINNESOTA GENE SIPPRELL SCANNEDDATE LEGALLY RESPONSIBLE FOR DAMAGES OR LOSSES David B. Pemberton, PLS Minnesota License No. 40344 c'I' 07/232018 RESULTING FROM ILLEGITIMATE USE. pembertonQsathre.com FRS PSP 1