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2 7310 Kurvers Point Road: MEMORANDtOM ~.. ,".:.:". TO: ~17 . -:BACKGROUND:., Wetland Alteration Permit Marilyn & Daniel Boeckmann Page 2 The third option that was explored at the time of platting was that it was recognized that a dock would have to cross this wetland to get to the upland before an access to the lake would be possible. At time of development, it was thought that a floating dock (to be removed seasonally) over the wetland would be the best option. However, this is a seasonally dry wetland so there are extended periods of time when there is no standing water and a floating dock would not work. If a normal dock were to be placed, footings would have to be placed deep into the wetland to support any structure out to the end of the property. The applicant would like to do two things. They would like to gain direct access to the lake and also create a more aesthetically pleasing wetland on their property. What they have proposed to do is create a berm along the south edge of the property line halfway and have a bridge crossing and another berm connected to the end piece of property. They would then excavate the wetland area that is currently dominated by reed canary grass to create an area which will hold standing water and convert this to an open water wetland. Because the lowest point of excavation is above the ordinary high water level, this permit will be run through the City and not the DNR. Because this project is in the shoreline impact zone (1,000 feet from the shore land of a recreational lake), the maximum filling of a wetland in this area is 400 square feet under the diminimus rule. Any extra excavation or filling of a wetland will require mitigate or newly created wetlands. I have enclosed in part of my packet, DNR guidelines for excavating ponds for waterfowl and environmental purposes. If you will notice in the instructions for doing so, they create an environment that will allow wet meadow vegetation in addition to open water to accumulate in this area. As far as the City is conCemed, our belief that converting this to open water could benefit the lake. Since the hydrology of this area would be fed from the storm pond overflow, creating an open water pond will provide additional water quality treatment before street runoff enters the lake. This area has been heavily impacted by agricultural activities in the past. There are very little native plants in this particular wetland. It has been choked out by reed canary grass and some cattails. There is a possibility of restoration if the right plant seed mixes are used in conjunction with this excavation project. The City agrees that by creating a berm to allow access rather than a dock, this will allow some control over water levels and allow settling of nutrients in this area. Therefore, City staff recommends the following motion: RECOMMENDATION "The Planning Commission recommends approval of wetland alteration permit #00-1 subject to the following conditions: The area shall be mitigated to make up for the 250 square feet of wetlands above and beyond the diminimus requirement. Wetland Alteration Permit Marilyn & Daniel Boeckmann Page 3 o The wetland be constructed in such a fashion that it will allow native plants to grow and follow the DNR guidelines for wetland conversion (see attached). o The applicant shall not be permitted to put in a fountain or any chemicals to control the environment of this area. The applicant shall use a native wetland seed mix to complete the restoration or conversion of this area to a more natural setting." ATTACHMENTS 2. 3. 4. 5. 6. Location map. Application. Description of proposed alteration. DNR guidelines for excavating ponds for waterfowl. Survey and excavation plan. Public hearing notice and property owners. \\cfs 1 \vol2\eng\phillip\wctlands\boeckmann wap.doc II MINNESOTA WETLAND CONSERVA T/ON A CT/CHANHASSEN WETI. AND ORDINANCE WETLAND REPLACEMENT PLAN APPLICATION APPLICANT: ADDRESS: PHONE NO. (daytime): Daniel A. and Marilyn A Boeckermann 14980 Ironwood Court, Eden Prairie, MN 55346 61 2,934-5498 Authorized Agent(s)/Consultant Involved With Project Name: Dean Carlson - Coldwell Banker Burnet Address: 7820 Terry Pine Court, Eden Prairie, MN 55346 Phone No.: 61 2,701-5419 or 612,949-4715 Wetlands Consultant Name: Rob Merila - Aquatic EcoSolutions, Inc. Address: 2116 Marquis Rd., Golden Valley, MN 55427 Phone No.: 612,545-0912 (1) (2) (3) (4) (5) (6) Provide the following information for the impacted Wetland(s) A recent aerial photograph or accurate map of the impacted wetland area is attached? The location of the wetland: Carver County, Riley Purgatory, Bluff Creek watershed name (< 50% ) public land survey and/or UTM Coordinates of the approximate wetland center 4969000m N., 458600m E.: SE¼ of NE¼ of Sec 12. The size of the wetland: 0.36 acre or 15,525 square feet; The type of the wetland: 3 Circular No. 39 PEMC/F NWl Ag/Urban City A list of the dominant vegetation in the impacted wetland area: (for example, 50 percent willow, 20 percent cattails, and 30 percent sedge) 60% reed canary grass 20% purple Ioosestrife 20% giant burreed A soils map of the site is attached? X Yes No. Page 1 of 7 Wetland Conservation Act/Chanhassen Wetland Ordinance Wetland Replacement Plan Application (7) (9) (1 0) {11) (1 2) (1 3) (14) The size of the surface drainage into the wetland is approx. 3 acres. a.) The locations of any surface inlets or outlets draining into or out of the wetlands are noted? X Yes No. b.) Is the wetland within the floodplain of a watercourse? Yes X No (If Yes, the distance and direction to the watercourse is feet in a direction.) Is a map, photograph, or written description of the land use of the immediate watershed within one mole Of the impacted wetland attached? X Yes No. Is the nature of the proposed project, its aerial extent, and the impact on the wetland shown in sufficient detail on the materials submitted? X Yes No. Has evidence of ownership or rights to the affected areas by all applicants been demonstrated? X Yes No. (The applicant has a purchase agreement on the lot contingent of approval of permit to create pond.) List all other local, state, and federal permits and approvals required for the activity. Attach buffer strip widths, If applicable that will be provided to the impacted wetland following alteration according to the City of Chanhassen. Attach other necessary information (i.e. historical aerials, etc.) Page 2 of 7 Wetland Conservation Act/Chanhassen Wetland Ordinance Wetland Replacement Plan Application B. Provide the following information for the Replacement Wetland Site: Will replacement be accomplished via wetland banking (if Yes, only complete items 2,3, and 8) Yes X No The project is an excavation within an existing wetland so WCA replacement is not necessary. The minor fill for the walkway above the 400 square feet is proposed to be replaced via wetland bank credits (0.01 acres at 2:1 ratio). (1) Timetable: project will begin on 03/01/00 (Mo/Day/Yr and be completed by 11/15/02 (Mo/Dav/Yr). (2) Size 0.01 acres and type 3 Circular 39, PEMC NWl of wetland that will result from successful completion of the replacement/banking plan. (3) The location of the replacement wetland: Carver County, Minnesota River (Shakopee) #33 watershed and public land survey and/or UTM coordinates of approximate wetland center (in the northwest corner of the impacted wetland located at: 4969000m N.,458600m E.:SE¼ of NE¼ of Sec 12). (4) A recent aerial photograph or accurate map of the replacement site is attached? X Yes No (5) A soils map of the replacement site is attached? X Yes No (6) The size of surface water drainage into the replacement wetland is approx. 3 acres. (7) a.) The locations of any surface draining into or out of the wetlands are noted? X Yes No (appears to be sheet flow on parcel) b.) Is the replacement wetland within the floodplain of a watercourse? Yes X No (if Yes, the distance and direction to the watercourse is direction.) feet in a (8) Has evidence of ownership or rights to the replacement site by the applicant(s) been demonstrated? X Yes No. Page 3 of 7 Wetland Conservation ,4ct/Chanhassen Wetland Ordinance Wetland Replacement Plan Application 19) Attach scale drawings showing plan and profile views of the replacement wetland and buffer strip as required by the City of Chanhassen and fixed photo-reference points for monitoring purposes. (10) Describe how the replacement wetland shall be created. For example: · Excavation or restoration by blocking an existing tile: · The type, size, and specifications of outlet structures; · Elevations, relative to Mean Sea Level or established bench mark, of key features, for example, sill, emergency overflow, and structure height; and, · Best management practices that will be implemented to prevent erosion or site degradation · The replacement wetland shall be created by excavating within the upland adjacent to the wetand, and I.owering the ground elevation to bring in wetland conditions. The excavated area will be slightly oversized so that organic material from the adjacent excavation can be placed within this area. The Wet Meadow Seed Mixture shown in Table 3 (or similar) is recommended for both the replacement wetland area and the Public Value Credit area. Purple Ioosestrife within the existing wetland, and in the replacement wetland shall be removed by hand and disposed of properly. (11) For created wetlands only, list additional soils information sufficient to determine the capability of the site to produce and maintain wetland characteristics.. The replacement wetland shall be excavated deeper than necessary and organic material shall be placed on top of the excavated area. The Wet Meadow Seed Mixture (Table 3 or similar) shall be planted to provide a seed source. (12) Has a monitoring plan been developed and attached? X Yes No (1 3) Attach other necessary information. (14) Sworn Statements: Daniel A. and Marilvn A. Boeckermann (Applicant) states by signature below that: the replacement wetland was not previously restored or created under a prior approved replacement plan; AND, Page 4 of 7 Wetland Conservation Act/Chanhassen Wetland Ordinance Wetland Replacement Plan Application (1 5) (ii) (iv) the replacement wetland was not drained or filled under an exemption during the previous ten years; AND, the replacement wetland was not restored with financial assistance from public conservation program; AND, the replacement wetland was not restored using private funds other than those of the landowner unless the funds are paid back with interest to the individual or organization that funded the restoration and the individual or organization notifies the local government unit in. writing that the restored wetland may be considered for replacement. Has proof of replacement wetland recording notice been submitted to LGU? X Yes No Special Considerations To the best of the applicant's knowledge, are any of the following factors applicable at the impact or replacement site? Note whether present or not by indicating as follows: Impact Site (IS) Replacement Site (R) Both (B) Neither (N) YES NO (1) federal or state-listed endangered species IS (2) rare natural communities IS (3) special fish and wildlife resources including: IS (a) fish passage and spawning areas (b) colonial waterbird nesting colonies {c) migratory waterfowl concentration areas (d) deer wintering areas (e) wildlife corridor areas archaeological or historical sites ground water sensitive areas sensitive surface waters (e.g. DNR designated trout waters).~ educational or research sites waste disposal sites is the project consistent with local plans (e.g. watershed management plans, land use plans, IS zoning and master plans) (4) (5) (6) (7) (8) (9) IS 'IS IS IS IS IS IS IS IS IS IS Page 5 of 7 Wetland Conservation Act/Chanhassen Wetland Ordinance Wetland Replacement Plan Application Replacement Assurance Daniel A. and Marilvn A. Boeckermann (AoDlicant) confirms by signature below that: 1.) The 'wetland will be replaced before or concurrent with the actual draining or filling of a wetland, or 2.) An irrevocable bank letter of credit or other security acceptable to the local government unit to guarantee the successful completion of the wetland value replacement has been provided. I hereby affirm that the information above is correct and truthful to the best of my knowledge. " (A~t Signature) (Da~te~~ (Witness/LGU Official signature) (Date) Page 6 of 7 Wetland Conservation Act/Chanhassen Wetland Ordinance Wetland Replacement Plan Application Monitoring Plan According to a Board of Water and Soil Resources (BWSR) representative (as referenced from the WCA Monitoring Plan section (8420.0620, page 60)), the following outline details the WCA Monitoring Plan requirements. I. Annual Report Site Description 1. Project location (impacted and replacement wetland areas) 2. Monitored wetland " a. size b. current wetland type (Cowardin & Circular 39) c. desired wetland type (Cowardin & Circular 39) Comparison of planned wetland to resulting wetland (first year only) 1. What the differences were 2. Rationale for those differences Co Hydrological measurements times per year 1. April-May 2. June-July-August 3. September-October (msl or referenced to known bench mark) 3 Do List of dominant vegetation (1 time per year) 1. Common name 2. Percent cover Color photographs from photo reference point noted on the replacement plan (1 time, June-August) II. Final Report A. Summarization of the annual reports The monitoring plan would require only one field visit by an ecologist during the growing season. The other two field examinations could be done by someone familiar with reading water levels. The monitoring plan can include a tool such as a gauging stake from which to measure water levels in the spring and fall, A photograph at this time would be helpful to verify these measurements. Page 7 of 7 DESCRIPTION OF PROPOSED ALTERATION Location: 7310 Kurvers Point Road Purpose of Proposed Alteration The purpose of the alteration is to give the purchaser of the property a useable access to the shoreline. There.is land that is not wetland just at the shoreline of the lot. The size of neither the wetland nor the land at the shoreline would be changed. These improvements would improve the property as far as appearance and improve the use of the property for the purchaser without effecting the purpose of the wetlands or shoreline. In addition, these improvements would enhance Lotus Lake, as this would create an open body of water to provide a spawning environment for fish. We feel at one point this wetland was covered with water and this improvement would return the area to its original state. Pond 1)It is our hope to dredge an area of the wetland to be 10-15 feet deep and approximately 50 feet wide. This would not decrease the size of the wetland. 2) There is a natural channel at this time from the lake to the wetland. This channel would be expanded to 5- 10 feet (lett open or perhaps with a culvert, covered with soil and returned to its natural condition). 3) We hope to create a narrow berm, which would allow us a walkway tothe shoreline (no more than 4-5 feet in width). 4) We hope to build a small wooden bridge over the channel to give us access to the shoreline. 5) If appropriate, we would install an aeration system (fountain) to keep the water from becoming stagnant. We have a purchase agreement with the current owners of the property. The purchase of the lot depends on the approval ora wetland alteration permit for the pond improvements, as the lot 'as is' is not useable. The finished pond project would look similar to the pond to the right of the property with the address 7280 Kurvers Point Road. Marilyn and Daniel Boeckermann 14980 Ironwood Court Eden Prairie, MN 55346 612/934-5498 Cell 612/804-9721 Realtor~ Dean Carlson Coldwell Banker Burnet 612/701-5419 ' E S I tions, I quat c co o u nc. Ecological Solutions to Environmental Challenges Lakes · Streams · Riparian · Wetlands · Watersheds 2116 Marquis Road Golden Valley, MN 55427 Telephone/Fax: (612) 545-0912 WETLAND CONSER VA TION A CT- SEQUENCING LGU's FINDINGS OF FACT Addendum Proposed Plan The purpose of the proposed plan is twofold: 1) to provide useable access to the upland along the shoreline of the lake; and 2) to excavate the central portion of the wetland so that it has a more diverse fish and wildlife habitat. The proposed activities would allow the desired use of the parcel, minimize impact to the wetland, and benefit the surrounding fish and wildlife. R appears as though the wetland may have been deeper in the past, and has filled in over time; the excavation would restore this open water habitat. The walkway would be located along a corridor that is currently dominated by reed canary grass and purple loosestrife (both undesirable plant species); the area would only be approximately 650 square feet. Since reed canary grass and purple loosestrife are both considered "invasive species," the walking path alignment through this area would provide minimal ecological detriment, since the dominance of purple loosestrife and reed canary grass is already a shift from. a naturally'existing plant community. As additional mitigation, the applicant would agree to hand-remove the existing purple loosestrife located on this parcel, and re-seed the exposed areas with the Wet Meadow Seed Mixture as described in the Wetland Replacement Plan Application. A bridge is proposed to cross the deepest portion of the walking path alignment, at the location of a historic channel location. Silt fence would be installed on both sides of the walkway until things become stabilized. The pond is proposed to be 8 to 10 feet deep and approximately 50 to 60 feet wide. This would not decrease the size of the wetland. Most of this area is currently dominated by reed canary grass and purple loosestrife. If appropriate, the applicant would install an aeration system to keep the water in aerobic conditions. Benefits Provided Since the proposed excavated pond has a direct connection with Lotus Lake, it provides increased habitat for fish Pike, Largemouth Bass, Sunfish, and Crappies. This proposed open water area would provide a warmer feeding area for early-season fish, spawning and nursery habitat for bass and panfish, and a rearing area for young of the year fish. In addition to fishery habitat, an open water zone here would provide waterfowl with an additional courting, nesting, and rearing of the young. Page 1 of 3 Wetland Conservation Act- Sequencing LGU's findings of Fact Addendum The open water would allow turtles, amphibians, and other critters shelter from the lake, yet have direct access to the lake. The open water of this proposed pond adjacent to the lake would also allow dragonfly and damselfly larvae to grow and mature into adults. These species (along with frogs) are nature's "mosquito patrol," feeding on mosquito larvae and adults. Impact Avoidance Alternative 1~ Alternative Sites: For the walkway to the upland along the lakeshore, an alternative site would not be feasible because lake access to the upland along the lakeshore would not be possible from another alternate site. If the wetland excavation were performed at a different location, the benefit to Lotus Lake would not be as strong. Alternative 2, Alternative Configurations: An alternative location of the walkway would be along the northern side of the property. This alternative would cause a portion of the deeper water within the basin to be filled for the walkway and increase impact to the wetland. An alternative configuration to the excavation would be an excavation of the entire basin that would leave no fringe vegetation along the wetland fringe. Impact Minimization Size The size of the walkway has been minimized to a four-foot width; any narrower and it would be difficult to use. The size of the proposed excavated pond is kept small enough to allow the fringe vegetation to remain as wildlife habitat while allowing for the enhanced benefits of the open water. Scope The scope of the walkway stays within the parcel and does not effect the surrounding properties. The excavated pond will benefit the surrounding neighbors as well as the fish and wildlife that lives in the lake and along its shores. Configuration The walkway takes the least detrimental route to the upland along the lakeshore. The dominant vegetation at the location of the proposed path alignment is reed canary grass with purple loosestrife as the secondary species. Removal of purple loosestrife along the path would be a benefit to the wildlife habitat since it becomes inferior wildlife habitat. Page 2 of 3 Wetland Conservation Act- Sequencing LGU's findings of Fact Addendum The proposed pond excavation configuration includes a natural shape that fits into the natural habitat. Density Since this is a single residential lot, the density issue has already been resolved. The better the graphics, the better the potential for a positive opinion. Page 3 of 3 · TABLE 3 WET MEADOW SEED MIXTURE Common Name (Species) Seeding' Rate fpounds/acre) Wild runlet (Echinoc~a crusg~) Perenr~ial rye {Lo/ium po-enne) Al~ike clover (Trbfolium hybridum) Native Seed Mix (see below) 5.0 5.0 12.0 5.0 37.0 Natb~e Seed Mix - Incorporate As Many Species As Posm'ble (Minimum of 2 G;asses/ Sedges and ,t Forbs): Gra~es and Sedges: Caaada bluejoiat gra~ (C..a/amagrosds canadensis) Prairie cord-gra~ (S~ pect0~ata)I' Big bluestem (Androtx~on gtrardii) Switch gra~ (P~ v/rgamm): Green bulrush (Sci.,pus atroviren,) Fox sedge (Carex vulpinoidea) Forba: Swamp m~kweed (Ascle£ias ir~..m2mta) Aageiiea (~ge~a Blue veto (V~ New Ended ~ter (~t~ ~vae~e) Joe-~e weed (Eu~m~ ~~) Numero~ other lom~y na~e s~ - eomult nu~e~ stuff ~d ~or ielecfioa to site s~c~ tplanc[n$ rh£zomes is preEer&ble t:o seedt, ng because some seed stocks have very 1.o~ germ£nac£on races 2Use only locally-collected seed ~ Aquatic EcoSolutions, Inc. Ecological Solutions to Environmental Challenges Lakes · Strearas · Riparian · Wetlands · Watersheds 2116 Marquis Road Golden Valley, MN 55427 Telephone/Fax: (612) 545-0912 Excavated Ponds for Waterfowl 'Landowners frequently ask natural resOurce agencies how they can improve their land for waterfowl. Specifi- cally, manypeople wonder if excavating ponds will help. This brochure will outline when and where dug ponds, or "dugouts"~ can be beneficial, and provides construc- tion guidelines for optimum waterfowl benefit. Refer to our "Ecology of Wetlands" brochure for more informa- tion. SHOULD YOU CONSIDER A DUGOUT FOR YOUR PROPERTY?. Dugouts shouldbe considered onlywhere other wetland management options are not possible. Before you decide to excavate a pond, you should survey the site to determine iflother options, such as ditch plugs, tile breaks, or dikes would work. Wetlands restored by reducing drainage are always preferable to dugouts. In general, dugouts should only be constructed if there are other open-water wetlands within one-half mile. Waterfowl use dugouts primarily for courtship and territorial sites, and must have other wetlands to fulfill feeding and brood-rearing needs. Small dug- outs (less than one-half acre) are used mostly in spring or fall migration, less so in summer. Larger dugouts will get more summer use, if they're the right depth (1.5 - 3 feet). You should not excavate a dugout in an existing wetland, especially one with open water. This can destroy the existing wetland by draining surface water off. Excavations should be outside the edge of the wetland, where the water table is still adequately high. Cattail-choked wetlands are an exception to this rule, where vegetation covers the entire surface of the wetland, and surface water is rarely present. In these cases, it may be acceptable to dig in the wetland basin, but you should still stay close to the edge. For these projects, you will need to observe permit requirements described below and should talk to the local DNR Wildlife Manager. CONSTRUCTION GUIDELINES 1. PERMITS. Wetlands are protected by several laws, and a permit may be required for your project. Four government agencies regulate wedands, and sho .uld be contacted if you will be working in an existing wet- land. These agencies are: U.S. Army Corps of Engi; neers, USDA -Agricultural Stabilization and Conser- vation Service (ASCS), the DNR.Division of Waters, and your city or county zoning office or local water- shed district. Phone numbers for the first 3 agencies are given at the end of this brochure; check your local directory for. the number of your local office. ' 2. DEPTH AND SLOPES. Waterfowl need shallow water. When filled with water, yourdugout should be no more than 5 feet deep. In mid-summer, much of your dugout should be less than 3 feet in. depth. Your pond should generally have the following depths when it is full (as in spring): Pct. of Pond Water Depth at this Depth Likely Result 0 to 1 foot 5 to 15 Cattails/emergent vegetation, usually d.ry by July. - Figure 1. Topographic diagram of a good basin design; this design emphasizes shallow slopes and depths (each line represents one foot of depth), and good shoreline features. Adjacent uplands are seeded to native grasses. 1 to 3 feet 40 to 70 3 to 5 feet 25 to 40 Mixed emergent vegetation and' open water, dry in drought. M6stly open water, dry in severe drought. A pond bottom with variable depths (i.e., an undulat- ing bottom) is very desirable. This allows an intersper- sion of vegetation and open water which is very attractive to waterfowl. Some biologists prefer to construct dugouts with one deep side to ensure water availability and allow for viewing of waterfowl. Figure 1 shows an example of a good basin design from the perspective of slopes and depths. If you are constructing a dugout in cattail-choked wedands, you will not be able to achieve the above depths. In these cases, {he slopes of your dugout will have to be fairly steep. This is okay as these dugouts will function mostly as territorial sites, and may not be heavily used for feeding. Maximum depth still should not exceed 5 feet. In mineral soils, steep slopes prohibit growth of desirable vegetation, encourage erosion, and reduce waterfowl use. As much as possible, grade the slopes of your basin at a 3:1 (steep)to 10:1 (tiao ratio. Flatter slopes are better, which is not the same as a flat bottom. ' 3. SIZE. Waterfowl use all sizes of wetland, but usually, bigger is better. In building your pond for waterfowl you should consider a minimum size of 2500 square feet (equal to a square with 50 foot long sides). Larger, irregularly shaped ponds are preferred, however costs get quite high.' 4. SHORELINE FEATURES. A pond with a shore- line which is irregular, and has many points and bays, is more attractive to waterfowl than a dugout with a straight shoreline. 'Plan your dugout to have as much' shoreline as poss~le, as in figure 1. 5. NUMBERAND DISTRIBUTION. As explained above, your dugout should be near an existing shallow marsh for brood-rearing purposes. If you have ad- equate space and funding, you can consider digging more than one dugout. In gefieral, two closely-spaced small dugouts will receive' more use than one larger dugout. If you construct more than one pond, space them about 100 to 300 feet apart. Ponds can be closer if tall Vegetation screens the ponds from each other (breeding ducks are territorial and won't tolerate oth- ers of the same species if they can see them). 6. ISLANDS. Dugouts less than nv0 acres are too small to indude an island. As an alternative you can use nest baskets, boxes or floating rafts for nesting. A floating log, anchored in place, provides an excellent site for waterfowl and turtle loafing. See our brochure entitled "Artificial Structures for Waterfowl." 7. SPOIL. Excavating a pond means you end up with a lot of soil removed from the dugout; this is called "spoil." Spoil must be carefully dealt with to optimize waterfowl use. In peat soils and cattail-choked wet- lands, you should remove the spoil from the wetland if at all possible. Again, check with the appropriate agencies (see list at end) to determine if you need a permit. In mineral soils, the top 6"- 12" will probably be black topsoil, high in organic matter. This should be saved separately for later spreading over the excavated bot- tom. The underlying nonorganic soils (clays, sands, etc.) should be moved to an upland site and spread evenly. It is important that this material be removed from the wedand basin and not piled adjacent the dugout. The edge of the dugout should not have a discernible "rim"; that is, the slope should be continu- ous below and above the water surface, as shown in the cross-section in fi~ure 2. Finally, all disturbed uplands and spread spOil should be seeded to native grasses for a minimumof 150 feet around the dugout. This will provide waterfowl cover, minimize weed growth, and prevent sedimentation within the basin. Providing 4 acres of upland nesting cover for each acre of wetland is best for duck produc- tion. Do not plant trees near your dugout; these serve as predator perches and dens, and will reduce water- 'fowl use. Use nest boxes to attract wood ducks. Remember to get any necessary permits before you start digging! 8. FINAL TREATMENT. The clay and sand under- lying most mineral soils are very sterile and won't support plant growth. In order to establish a food chain in your dugout, you must provide an organic base. This can be accomplished by spreading 4"-6" of. black topsoil over the entire excavated area. This can be the topsoil you originally removed (and stockpiled) from the site when you started digging. Another technique is to spread 2"-6" of clean upland hay over the excavated surface (wild hay can spread noxious weeds). Both car~ be used simultaneously. Once covered With water, either of these bases will quickly allow vegetation and insects to grow, providing the building blocks for a desirable marsh. Don't worry about planting aquatic plants in your basin - they will establish themselves naturally in time, given a suitable site. - ,0.3' ~::'..~_O..":.~:.'.~:~'~...::' ..,...'.~::~" i I 1 I I I I I' I 0 I0 20 30 40 Feet Figure 2. Cross-section of pond bottom $howing smooth, shallow grade at waterline, and undulating bottom contours. SOME OTHER CONSIDERATIONS In general, a bulldozer or scraper is best ~pable of constructing ponds as. they can be fairly precise in "sculpting" the landscape.' A backhoe (power shovel) or excavator can do a good job, and a dragline can produce fair results. The nature of your project will likely determine to a large degree exactly which equipment is used. If you have a drY site, use a dozer, scraper, or backhoe. If it's a wet site, a backhoe or dragline must be used.. Minimize the disturbance to existing vegetation around your dug- out or you will encourage undesirable weed growth. Blasting with dynamite or ammonium nitrate gives unsatisfactorY results, is dangerous, and should not be used. -. ADDITIONAL ASSISTANCE Most resource agencies disco.urage the use of dug ponds for waterfowl because of their high cost. However, you may be able to get some further technical or financial assistance. Some county ASCS oflqi:es will cost-share construction costs through' the.Agricultural Conserva; tion Practices (ACP) program.' Local SCS or S0il and Water Conservation District offices. may be able to provide further technical advice. The DNR Section of Wildlife can give general advice for your area, and should be Che.cked for permit requir, ements. In forested areas of the state, your DNR forester may be ableto provide cost- sharing through the Forest Stewardship Program. Fi- nally, local and itatewide clubs' may offer cost-share assistance; check with them for specifics.. · AGENCIES WHICH REGULATE WETLANDS OR PROVIDE TECHNICAL OR FINANCIAL ASSISTANCE FOR WETLAND PROJECTS AGENCY FUNCTION PHONE NUMBER Agricultural Stabilization and Conservation Service Regulatory & financial assistance (612) 290-3651 Army Corps of Engineers DNR - ForestrY RegulatorY · Technical & financial assistance (612) 220-0375 (612) 296-4491 DNR- Wildlife DNR- Waters Soil Conservation Service Technical assistance RegulatorY Technical assistance (612) 296-3344 (612) 296-4800 (612) 290-3675 1992, State of Minnesota, Department of Natural Resources. Printed on recycled paper. ,,44' NOTICE OF PUBLIC HEARING PLANNING COMMISSION MEETING WEDNESDAY,' MARCH 1, 2000 AT 7:00 P.M. CITY HALL COUNCIL CHAMBERS 690 CITY CENTER DRIVE PROPOSAL: Wetland Alteration Permit APPLICANT: Marilyn and Daniel Boeckermann LOCATION: 7310 Kurvers Point Road NOTICE: You are invited to attend a public hearing about a proposal in your area. The applicants, Marilyn and Daniel Boeckermann, have applied for a wetland alteration permit to excavate approximately 6000 square feet of wetland and filling approximately 600 square feet wetland to access lakeshore located at 7310 Kurvers Point Road. What Happens at the Meeting: The purpose of this public hearing is to inform you about the developer'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: 1. Staff will give an overview of the proposed project. 2. The Developer will present plans on the project. 3. Comments are received from the public. 4. Public hearing is closed and the Commission discusses project. Questions and Comments: If you want to see the plans before the meeting, please stop by City Hall during office hours, 8:00 a.m. to 4:30 p.m., Monday through Friday. If you wish to talk to someone about this project, please contact Phillip at 937-1900 ext. 105. If you choose to submit written comments, it is helpful to have one copy to the department in advance of the meeting. Staff will provide cop~es to the Commission. Notice of this public hearing has been published in the Chanhassen Villager on February 17, 2000. 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