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3. NPDES Phase II MS4 Permit 2007 Annual Report CITY OF CHANHASSEN 7700 Market BoUlevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax 952.227.1110 Web Site www.ci.chanhassen.mn.us 3 J!!f MEMORANDUM To: Todd Gerhardt, City Manager ~ d:. Terrance Jeffery, Water Resources Coordinator 1 ~ May 27, 2008 From: . Date: Re: National Pollutant Discharge Elimination System (NPDES) Phase II Municipal Separate Storm Sewer System (MS4) Permit 2007 Annual Report SWMP15 ACTION REQUIRED Staff is requesting the City Council: 1. Receive public comment on the City's NPDES Phase IIMS4 Storm Water Polll.l;tion Prevention Program and 2007 Annual Report; and 2. Approve the Annual Report for 2007; authorize mayor's signature and submittal to Minnesota Pollution Control Agency (simple majority). MOTION SUGGESTED The Chanhassen City Council authorizes the Mayor Pollution Discharge Elimination System (NPDES) attached to this report, and authorizes the distribution Minnesota Pollution Control Agency. BACKGROUND In June 2002, the Minnesota Pollution Control Agency general permit for cities discharging stormwater into the permit was issued, the Minnesota Center for filed an appeal for the permit indicating that it was permit in place of individual permits and because they believed address non-degradation and education as part of the permit. In Minnesota Court of Appeals ruled in favor of the MCEA. The MPCA has since revised their permit to address additional requirements. The City of Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. NPDES Phase II MS4 Permit Annual Report May 27, 2008 Page 2 of 4 As part of the revised permit, Chanhassen and 29 other communities must address the non-degradation of all waters. This requirement has been added to determine if any new or expanded discharges beyond 1988 baseline conditions exist within the selected communities (MR 7050.0815). Chanhassen completed the Non-degradation Plan in February of 2007 and submitted it to the MPCA for review and comment. As of this date, we have not received comment from the MPCA on the Non-degradation Plan. The City of Chanhassen submitted a revised application for permit coverage on May 26,2006. The MPCA approved the revised permit on April 22, 2008. HIGHLIGHTS OF PROGRESS - 2006 · Reduced solid waste and dumping through 6,061 visits to the Carver County Environmental Center by Chanhassen residents. · Reduced pollution by recovering 550 tons of debris through street sweeping efforts. · Continuing to perform QA/QC on storm sewer map and add data. · Continued development of storm sewer maintenance and inspection database. · Conducted 36 documented construction site inspections in cooperation with the Carver Soil and Water Conservation District. Inspections have dramatically increased compliance at construction sites. Many inspections of individual home sites also occurred. · Notification letters sent to 32 NPDES permit holders as a result of inspections. · Inspected 82% of the sump and environmental manholes in Chanhassen. Maintained those in need of vacuuming. · Continued soil sampling program within parks to assist with soil fertilizing needs. · Reduced phosphorous loading from City park land by applying 18 tons of phosphorous free (18-0-18) solid fertilizer and 3300 gallons of (18-0-05) liquid fertilizer. · Reduced phosphorous loading to Chanhassen waters by using phosphorous-free soap to wash the City fleet. · Reviewed storm water management, erosion and sediment control, and wetland ordinances to begin ordinance amendments in response to the Surface Water Management Plan (SWMP) update. · Public works operations have continued their program of recycling used oil. The quantity recycled will be forthcoming. · Mailed 88 notices to remind residents to have septic systems pumped. No systems were identified as failing. · Maintained natural resources web pages, which received over 18,590 web hits. · Included 16 articles relating to stormwater quality in the Chanhassen Connection. · Contributed to two newspaper articles related to water resources in the Chanhassen Villager. G:\ENG\Terry\NPDES Phase Il\MS4 Permit\2007 Annual report\2007 NPDES Council Memo.doc NPDES Phase II MS4 Permit Annual Report May 27, 2008 Page 3 of 4 . 325 New Resident Packets mailed out. . Chanhassen Arbor Day celebration resulted in eight Chanhassen parks being cleaned. . 250 trees were sold at the Chanhassen Arbor Day celebration with an additional 100 seedlings given away to Chanhassen residents. . 350 Trees recycled by the Boy Scouts of America. ADDITIONAL ACCOMPLISHMENTS - 2007 . National Pollution Discharge Elimination System Phase II - Municipal Separate Storm Sewer System Permit reissued. . Completed Non-degradation Analysis as part of the NPDES permit. . Completed Appendix C of the NPDES Permit addressing known impaired waters (Lotus Lake, Lake Riley and Bluff Creek) and Outstanding Resource Value Waters (Seminary Fen and Assumption Creek). . Installed new culvert under trail at Stone Creek Drive and Bluff Creek to better accommodate large flows. . Completed four raingardens with 5,500 square feet of effective treatment area in Lake Ann Park. . Installation of six raingardens and the stabilization of an eroded ditch along Foxford Road. Work cooperatively with area residents to complete the project. . Expanded existing pond in Curry Farms Park and restored 500 feet of creek to improve water quality. · MN T.R. 212 Wetland Mitigation and stream restoration at Bluff Creek north of Lyman. . Utica Terrace Drainageway Reconstruction. . Yosemite/West 63rd Street Stormwater Improvements. · Updated Stormwater Ordinance. . Updated Wetland Ordinance. . Began Bluff Creek Total Maximum Daily Load (TMDL) Assessment and Implementation Plan. · Began data acquisition and feasibility study for West-Central Lotus Lake Water Quality Improvement Project. FUTURE PROJECTS - 2008 to 2009 . Landings Court storm sewer improvements. . Kerber Pond Park Water Quality Improvement Project. . Cimmaron Homeowners Association raingarden and native landscaping project. . Hill Street Drainage Issues. . Lake Minnewashta Outlet Improvements. G:\ENG\Terry\NPDES Phase Il\MS4 Permit\2007 Annual report\2007 NPDES Council Memo.doc NPDES Phase II MS4 Permit Annual Report May 27, 2008 Page 4 of 4 · West-Central Lotus Lake Stormwater Improvement Project. · Ravine #2 Channel Stabilization Project. · Cooperative efforts with Lower MN River Watershed District to identify and stabilize gullies above Assumption Creek and Seminary Fen. · Update Storm Water Pollution Prevention Plan (SWPPP) per Non-degradation Assessment findings. · Complete Bluff Creek Total Maximum Daily Load Assessment and Implementation Plan. ATTACHMENT 1. 2007 NPDES Phase II MS4 General Permit Annual Report. G:\ENG\Terry\NPDES Phase II\MS4 Permit\2007 Annual report\2007 NPDES Council Memo.doc ANNUAL REPORT for 2007 MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4s) For Calendar Year 2007 Due June 30,2008 USE OF THIS FORM IS MANDA TORY By completing this Annual Report form, you are providing the Minnesota Pollution Control Agency (MPCA) with a summary of your status of compliance with permit conditions, including an assessment of the appropriateness of your identified best management practices (BMPs) and progress towards achieving your identified measurable goals for each of the minimum control measures as required by part VI D. of the MS4 Permit. Submit your annual report by June 30, 2008 to: Minnesota Pollution Control Agency Municipal Division 520 Lafayette Road North St. Paul, MN 55155-4194 If you would like to obtain an electronic copy of the MS4 Annual Report for 2007 form, please visit: www.pca.state.mn.us/water/stormwater/stormwater- ms4.html If you have further questions, please contact one ofthese MPCA staff members (call toll-free 800-657-3864): . Keith Cherryholmes 651-296-6945 . Joyce Cieluch 218-846-7387 . Scott Fox 651-296-9433 Chanhassen City MS4 Name ofMS4 Terry Jeffery Name of Contact Person 9522271168 Telephone (including area code) 7700 Market Blvd, PO Box 147 Mailing Address Chanhassen MN 55317 City State ZIP code A. The permit requires each MS4 to implement a public education program to distribute educational materials to the community or conduct equivalent outreach activities about the impacts of stormwater discharges on water bodies and the steps that the public can take to reduce pollutants in stormwater runoff. [Part V.G.1.a] NOTE: Please indicate which of the following distribution methods you used during the 2007 calendar year. Indicate the number distributed in 2007 in the spaces provided (enter "0" if the method was not used or "NA" ifthe data does not exist): wq-strm4-06 Page 1 of7 12/07 Media type Number of media Number of times published Circulation! Audience Example: Brochures: 3 different brochures published 5 times about 10,000 Brochures: 4 different brochures Published 4 times Approximately 1,750 Newsletter: 16 different articles Each article published once Approximately 9,300 Posters: 3 3 Approximately 20,000 Newspaper articles: 2 different articles Each article published once Approximately 6,400 Web sites: * 1 Natural & Water Resources pproximately 18,590 Website Approximately 18,590 page Hits Utility bill inserts: 0 0 0 Radio ads: 0 0 0 Television ads: 7 7 Approximately 20,000 New Resident Packets: 3 different brochures 12 Monthly Distributions Total of 325 packets sent Other: * If you use your website as a tool to distribute stormwater educational materials, indicate the number of hits to the stormwater page during 2007 in the space above and provide the URL reference here: http://www.ci.chanhassen.mn.us/serv/nresourc.html B. What stage of development would you assign to each area of your stormwater education program? (If there ar multiple components for a Minimum Control Measure (MCM) providing the average stage of the most significan components - check the one box that most accurately reflects the overall stage for that MCM). MCM 1: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place MCM 2: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place MCM 3: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place MCM 4: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place MCM 5: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place MCM 6: 0 Not started 0 Research 0 Development ~ Implementation 0 Program fully in place C. Have you developed partnerships with other MS4s, watershed districts, local or state governments, educational institutions, etc. to assist you in fulfilling the requirements for Minimum Control Measure 1 ? D. List those entities with which you have a partnership agreement to meet the requirements of this MCM and describe the nature of the agreement(s) (list if level of effort exceeded 10 hours): Carver County - Carver Environmental Center Partnered with Carver Environmental Center in advertising programs such as recycling, rainbarrel, and composting programs. Did you hold a public meeting for calendar year 2007 and discuss your Stormwater Pollution Prevention Program (SWPPP)? [Part V.G.1.e] B. What was the date of the public meeting? C. How many citizens attended specifically for stormwater (excluding board/council members and s taft)? Was the public meeting a stand-alone meeting for stormwater or was it combined with some other function such as a City Council meeting? E. If you did not hold a public meeting on your SWPPP in 2007, explain why: 5/29/07 9 o Stand-alone ~ Combined F. Each MS4 must receive and consider input from the public. Input must be considered prior to submittal of your annual report. During your public meeting, did you receive written and/or oral input on your SWPPP? [Part V.G.2.b.1-3]. ~ Yes 0 N wqcstrm4-06 Page 2 of7 12/07 G. Do you plan to or have you already incorporated any comments into your next SWPPP update? [Part DYes D N V.G.2.c] If yes, list items: H. If you answered "Yes" to part F above but no SWPPP changes will be made check here: The permit requires MS4s to develop, implement and enforce a program to detect and eliminate illicit discharges as defined in 40 CFR 122.26(b)(2) in your SWPPP. You must also select and implement a program of appropriate BMPs an measurable goals for this minimum control measure. A. Have you completed a storm sewer system map by June 30, 2008 in accordance with the requirements of the permit? ' If yes, describe how it was completed: D Hardcopy only ~ GIS system D CAD D Other "digital" system: If No to A. above, please: Currently working on completion of storm sewer system map. Map will be completed by June 30. 2008. NOTE: The complete storm sewer system map must be finished by June 30, 2008. [Part V.G.3.a] B. Has an ordinance or other regulatory mechanism been adopted to prohibit illicit discharges or other non-stormwater discharges from entering your system? If yes, provide the date the regulatory mechanism was adopted: 1-13-86 & 12-8-03. If no, provide an estimated date of adoption: C. Have you completed the tasks according to the schedule listed in your BMP program for illicit discharge detection and elimination? Describe any changes in development status or the timeline/implementation schedule provided in your SWPPP? The permit requires that each MS4 develop, implement, and enforce a program to reduce pollutants in any stormwate 'unoff to your small MS4 from construction activities within your jurisdiction that result in a land disturbance of greate than or equal to one acre or less than one acre but is part of a common plan of development that will be one acre 0 greater. [Part V.GA.] Have you adopted an ordinance or other regulatory mechanism that regulates stormwater runof from construction activities that result in a land disturbance of greater than or equal to one acr or less than one acre which are a part of a common plan of development or sale that wil ultimately disturb one acre or more? NOTE: Your regulatory mechanism must be full developed and implemented within six months from the extension of permit coverage. B. The BMPs you listed in 2006 are checked below. Which of the following BMPs and pollution prevention management measures have been incorporated into your regulatory mechanism during 20077 Check all that apply: Y - Temporary erosion controls Y - Record keeping for rainfall and inspections Y - Permanent erosion controls Y - Waste controls for hazardous waste Y - Waste controls for solid waste N - Dewatering and basin draining ~ Added in 2007 ~ Added in 2007 ~ Added in 2007 ~ Added in 2007 ~ Added in 2007 D Added in 2007 wq-strm4-06 Page 3 of7 12/07 Y - Regular inspections by site operators Y - Site plan submittal including erosion and sediment control BMPs Y - BMP maintenance [gI Added in 2007 [gI Added in 2007 [gI Added in 2007 [gI Added in 2007 [gI Added in 2007 D Added in 2007 Y - Site plan review and approval prior to activity on site Y - Permanent stormwater management facility approval N - Other: C. The regulatory mechanism sanctions included to ensure compliance and enforcement componen are in 2006 are checked below. Which of the following actions does your MS4 use? Also, chec all additional sanctions added in 2007: [gI Yes D N Y - Verbal warnings Y - Written warnings Y - Stop-work orders N - Fines Y - Forfeit of security bond money Y - Withholding of certificate of occupancy Y - Other: Escrow for Erosion Control [gI Added in 2007 [gI Added in 2007 [gI Added in 2007 D Added in 2007 [gI Added in 2007 [gI Added in 2007 [gIAdded in 2007 he permit requires each MS4 to develop, implement, and enforce a program to address stormwater runoff from new development and redevelopment projects within your jurisdiction that disturb an area greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale that discharge into you small MS4. Your program must ensure that controls are in place that would prevent or reduce water quality impacts. Yo must also select and implement a program of appropriate BMPs and measurable goals for this minimum control measure. NOTE: The MS4 permit requirements associated with this Minimum Control Measure must be fully developed an implemented by 6/30/08. Have you developed and implemented strategies which include requirements for a combination of structural and/or non-structural BMPs appropriate for your community? B. Is an ordinance or other regulatory mechanism currently in place to address post-construction runoff from new development and redevelopment projects to the extent allowable under law? If yes, provide the date the regulatory mechanism was adopted: 1/10/2005. If no, provide an estimated date of adoption: C. Is a plan in place to ensure adequate long-term operation and maintenance of BMPs installed as a result of these requirements? How are you funding the long-term operation and maintenance of your stormwater management system? [gI Grants [gI Stormwater utility fee D Taxes D Other: wq-strm4-06 Page 4 of 7 12/07 he permit requires each MS4 to develop and implement an operation and maintenance program that includes a trainin component and has the ultimate goal of preventing or reducing pollutant runoff from municipal operations. Your progra must include employee training to prevent and reduce stormwater pollution from activities such as park and open spac maintenance, fleet and building maintenance, new construction and land disturbances, and stormwater syste maintenance. A. Is your MS4 current on development of all the elements listed to the timeline/implementation schedule listed in your BMPs for this MCM?? Did you complete all the tasks in the SWPPP scheduled for implementation in 2007? C. Indicate the total number of structural pollution control devices (manholes, grit chambers, sumps, floatable skimmers, etc) within your MS4, how many were inspected, and calculate the percentage: Total Number Number Inspected 70 58 Structural Pollution Control Devices: Percentage 82% D. As a result of your inspections, did you repair, replace, or maintain any structural pollution control devices? For each BMP below, indicate the total number within your MS4, how many of each BMP type were inspected, and calculate the percentage: BMP Type Total Number Outfalls* 1,638 Sediment basins/ponds 170 TOTAL 1,808 Number Inspected 45 12 57 Percentage 3% 7% 3% * outfalls as defined in the permit and guidance * In 2005 al outfalls wer inspected as part 0 contracted service with SEH he permit requires that any MS4 that discharges to a Water of the State which appears on the current U.S. EPA approve list of impaired waters under Section 303(d) of the Clean Water Act review whether changes to your SWPPP may b warranted to reduce the impact of your discharge [IV.D] Have you identified all impaired waters within your jurisdiction, based on the 2006 303(d) listing, which receive stormwater discharge from your MS4? Check here if your MS4 has no impaired waters: D . Do you have a process in place to identify and update your SWPPP based on the list of impaired waters which receive discharges from your MS4 as new waters are added to the 303(d) list? C. Have you determined that any stormwater discharges from your MS4 are negatively impacting any impaired water(s); for which you have or plan to revise to your SWPPP to address the loading? Provide the following information of the individual responsible for conducting the review of discharges to impaired waters and any associated BMP modifications: Name: Terry Jeffery Title: Water Resources Coordinator Phone: (952) 227-1168 Email: tieffery@ci.chanhassen.mn.us wq-strm4-06 Page 5 of7 12/07 Did you make a change to any identified BMPs or measurable goals that were submitted with your permit application? [Part V.H.] If yes, explain: Briefly list the BMPs using their unique SWPPP identification numbers you used in your SWPPP or any measurable goals that will be changed in your updated SWPPP, and why they have changed: (Attach a separate sheet if necessary) C. Did you rely on any other entities (MS4s, consultants or contractors) to satisfy any portion of your SWPPP? If yes, please identify below the entity and for what activities: SEH, Carver SWCD, Watershed Partners he person with overall administrative responsibility for SWPPP implementation must sign the annual report. This person must be duly authorized and should be the person who signed the MS4 permit application or a successor. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision i accordance with a system designed to assure that qualified personnel properly gathered and evaluated the informatio submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible fo gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, an complete (Minn. R. 7001.0070). I am aware that there are significant penalties for submitting false information, includin the possibility of fine and imprisonment (Minn. R. 7001.0540). X Authorized Signature (This person must be duly authorized to sign the Date annual report for the MS4) Furlong Last Name PO Box 147 Mailing Address Chanhassen City 952-227 -1100 Telephone (include area code) Thomas First Name Mayor Title MN 55317 State ZIP code tfurlong@ci.chanhassen.mn.us E-mail Address wq-strm4-06 Page 6 of7 12/07