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HomeMy WebLinkAbout002-940-08-2401-CUP-2003-013La Co SAWYER COUNTY NR 135 RECLAMATION PLAN Created By: SAWYER COUNTY LAND & WATER CONSERVATION 2003 LaCoy Pit Summary April 2003 Applicant Name: Ken LaCoy Pit Name: LaCoy Pit Address: 12018N Mos uito Brook Rd. Legal Description: SE'/a NW'/a Sec. S T40N R9W Phone: {710 34.8609 Total Area of Mine: 20 acres i . Minimal earthwork will be needed to achieve final slope angles since excavation won't exceed 12 inches. All grading will be completed and resulting surfaces scarified prior to topsoil redistribution. Grading will be accomplished to prevent ponding of water on the reclaimed surface. The topsoil will be placed and finished to the required lines, grades and slopes. 2. Topsoil will be removed to a depth of 8-10 inches. Topsoil removal will be accomplished by scrapers or bulldozers and haul trucks with the goal of recovering as much of the existing topsoil as possible. When feasible, soil will be removed in a manner so as to minimize the surface area exposed to erosion at any one time. Topsoil that has been stripped from the site should be stockpiled on level ground and away from any slopes. Stockpiles should be located in an area where they will be easy to access and out of the way to keep double handling to a minimum. 3. Sequential interim reclamation will be done so as to minimize the area impacted and to reduce the fees. Once a phase is completed and the area is stabilized Ken LaCoy will request of the Sawyer County Regulatory authority that the area be considered temporarily reclaimed for the purposes of reduction of fees. 4. Exposed soils will be seeded with a cover crop and seed mixture to quickly revegetate the site and stabilize the soils. BUDGET Reclamation is going to be done in 5-acre phases. j Number of Acres Item Unit Cost* Total Cost* 5 5 Topsoil Redistribution and Gradin2 $53.10/hr $132.75 $50.00 Seeder $10.00/ac 5 Tractor $15.00/ac $75.00 5 25 Ibs Annual R e $ 1.25/lb $31.25 5 60 Ibs D.O,T. mix #20 $ 1.35/lb $81.00 TOTAL* $370.00 LIusi ale ❑aanu un t*wTja= SAWYER COUNTY NR135 RECLAMATION PLAN PLAN REQUIREMENTS Section 13.00 Sawyer Count non -Metallic Mining Reclamat]on Ordinance NMMRO . 1. Maps of the non-metallic mining site including the general location, property boundaries, the area, extent, geologic composition and depth of the non-metallic mineral deposit, the distribution, thickness and type of topsoil, the approximate elevation of ground water, the location of surface waters and the existing drainage patterns. (MNRO Section 13.10(2)(a)), Maps: 1. General Location and Information: The LaCoy topsoil pit is located approximately 1/8 mile north of Rainbow Road in the Town of Bass Lake, Sawyer County, Wisconsin. The pit is located in the E'/z, SE Y4, NW'/4, Section 8, Township 40 North, Range 9 West. i Property Owner/Operator: Kenneth LaCoy i 12018N Mosquito Brook Rd. Hayward, WI 54843 (715) 634-8609 2. Property Boundaries: Map1 is page 31 of the 2002 Sawyer County plat book and shows the property location and boundaries. 3. Areal Extent: Map2 is a 1998 Orthophoto of the site and shows the proposed footprint of the site. Map2 illustrates how phasing will occur in the mining operation. Each phase corresponds to a specific excavation period where topsoil is removed and the pit is expanded. Phase 1: Topsoil will be removed and sold. Phase 2: Topsoil will be removed and a portion will be used to reclaim areas excavated during Phase 1. The area that made up Phase 1 will be seeded with an approved seed mix. Phase 3: Topsoil will be removed and a portion will be used to reclaim areas excavated during Phase 2. The area that made up Phase 2 will be seeded with an approved seed mix. Phase 4: Topsoil will be removed and a portion will be used to reclaim areas excavated during Phase 3. The area that made up Phase 3 will be seeded with an approved seed mix. Phase 5: Topsoil will be removed and a portion will be stockpiled to reclaim the area once phase 5 is complete. The area that made up Phase 5 will be seeded with an approved seed mix. Any areas that were disturbed during mining and not yet reclaimed will be. 4. Existing Topography: Map3 is a topographical map of the site shown in 10-foot contours. Distribution, thickness and type of topsoil: The topsoil is distributed evenly over the entire site to a depth of 8 to 10 inches. The topsoil consists of well - drained sandy loam. Sawyer County's soil survey has not yet been completed and is currently unavailable. --_mo Approximate elevation of groundwater: The approximate elevation of groundwater is unknown, A groundwater map is unavailable for Sawyer County. { Location of surface waters and existing drainage patterns: Little Spring Lake is approximately 3060' NE, Mud Lake is approximately 2930' SW, and Rainbow Creek is approximately 2345' SW of the site. Please refer to Map3 for the location of surface waters and existing drainage patterns. 2. Information available to the mine operator on biological resources, plant communities, and wildlife use at and adjacent to the proposed or operating mine site. (NMMRO Section 13 (2)(b)). Do a site analysis of plant communities and wildlife in and around mine site. Make sure to determine whether or not threatened or endangered species inhabit the site. Biological and wildlife data was mainly determined by visual data. Wildlife usage is moderate (foraging) in the croplands of the property. Main species present include rabbit, whitetail deer, sparrows, cardinals, and chickadee. The biological resources at and adjacent to the site are typical of Northern WI farmland. Vegetation consists of a crop rotation including: corn, small grains, and alfalfa. No endangered species were observed using the area, 3. Location of manmade features on or near the site (NMMRO Section 13 (2)(d)). Show the location of buildings towers, manmade berms, etc. on a plan view drawing, There are no manmade features on or near the site. 4. The reclamation plan shall specify a proposed post -mining land use for the non-metallic mine site. The proposed post -mining land use shall be consistent with local land use plans and local zoning at the time the plan is submitted, unless a change to the land use plan or zoning is proposed. The proposed post -mining land use shall also be consistent with all applicable local, state, or federal laws in effect at the time the plan is submitted. (NMMRO Section 13 (3)(a)). Proposed post -mining land use for the non-metallic mine site must take into account current land use and land use needs at the time mining is completed. Survey the surrounding area to determine what is the foreseeable land use for the area. The proposed post -mining land use for the non-metallic mine site is a grassy meadow. 5. Land use for non-metallic mineral extraction in areas zoned under an exclusive agricultural use ordinance pursuant to s. 91.75, Wis, Stats., shall be restored to agricultural use. (NMMRO Section 13 (3)(b)). Check for participation in the Farmland Preservation Program Farmland Preservation Program (circle one): YES NO X 6. A description of the proposed earthwork and reclamation, including final slope angles, high wall reduction, benching, terracing and other structural slope stabilization measures. (NMMRO Section 13 (4)(a)). Final reclaimed slopes covered by topsoil or topsoil substitute material may not be steeper than a 3:1 horizontal to vertical incline unless alternative requirements are approved under s. 18 (NMMRO), and stable slopes can be demonstrated based on site specific engineering analysis (NMMRO Section 11(5)(b)) Minimal earthwork will be needed to achieve final slope angles since excavation won't exceed 12 inches. All grading will be completed and resulting surfaces scarified prior to topsoil redistribution. Grading will be accomplished to prevent ponding of water on the reclaimed surface. The topsoil will be placed and finished to the required lines, grades and slopes. The methods of topsoil or topsoil substitute material removal, storage, stabilization and conservation that will be used during reclamation (NMMRO Section 13 (4)(b)). Describe where topsoil and subsoil will be stripped, placed and stabilized. Describe erosion control practices that will be used while soils are not stable (the Wisconsin Construction Site Handbook is recommended for determining adequate erosion control practices for the site). Topsoil will be removed to a depth of 8-10 inches. Topsoil removal will be accomplished by scrapers or bulldozers and haul trucks with the goal of recovering as much of the existing topsoil as possible. When feasible, soil will be removed in a manner so as to minimize the surface area exposed to erosion at any one time. Topsoil that has been stripped from the site should be stockpiled on level ground and away from any slopes. Stockpiles should be located in an area where they will be easy to access and out of the way, to keep double handling to a minimum. 8. A plan, which explains the anticipated topography of the reclaimed site and any water impoundments or artificial lakes, needed to support the anticipated future land use of the site (NMMRO Section 13 (4)(c)). The anticipated topography of the reclaimed site is approximately 12 inches lower than the current topography. No water impoundments or artificial lakes are planned or needed for the future land use of the site. 9. A plan or map which shows surface structures, roads and related facilities after the cessation of mining (NMMRO Section 13 (4)(d)). A gravel access road will be constructed at the time mining begins and will remain after mining has ceased. Please refer to Map2 for location of access road. 10. The estimated cost of reclamation for each stage of the project or the entire site if reclamation staging is not planned (NMMRO Section 13 (4)(e)). Reclamation is going to be done in 5-acre phases. Number of Acres Item To soil Redistribution and Grading Unit Cost* Total Cost* 5 $53.10/hr $132.75 5 Seeder $10.00/ac $50.00 5 Tractor $15,00/ac $ 1.25/lb $75.00 $31.25 5 25 Ibs Annual Rye 5 60 Ibs D.O,T. mix #20 $1.35/lb $81.00 $370.00 TOTAL* " cost are based on estimates 11. A revegetation plan shall include timing and methods of seed bed preparation, rates and kids of soil amendments, seed application timing, methods and rates, mulching, netting and any other techniques needed to accomplish soil and slope stabilization (NMMRO Section 13 (4)(f)). Revegetation using a variety of plants indigenous (native) to the area is favored (NMMRO11(8)(e)). The NRCS Critical Area Planting Standard 342 is recommended for depth of topsoil, seedbed preparation, methods and rates (Attachment2). The NRCS Mulching Standard 484 is recommended for mulching (Attachment3). Seed will be applied to properly prepared soils at any time during the growing season when soil conditions are suitable. Seeding activities will not be carried out immediately following rain, when ground is too dry or during windy periods. The areas will be seeded following the final grading and completion of each phase and all site preparation activities. A soil test should be taken before planting to determine the proper amount, if any of fertilizer and/or lime to be applied. The seed mix will be D.O.T. #20 from the 1996 WI D.O.T. Standard Specification for Highway Construction manual which consist of 6% Kentucky Bluegrass, 24% Hard Fescue, 40% Tall Fescue, and 30% Perennial Ryegrass. A cover crop of annual rye or oats should also be planted during the spring and summer. Winter wheat or winter rye should be planted as a cover crop after September 1. Seeding can be done using a broadcast seeder or grain drill. The cover crops should be planted at a rate of: Annual rye - 5 pounds per acre Oats — 8 pounds per acre Winter wheat — 8 pounds per acre Winter rye — 5 pounds per acre D.O.T. mix #20 should be planted at 12 pounds per acre. 12. Quantifiable standards for revegetation adequate to show that a sustainable stand of revegetation has been established which would support the approved post -mining land use. Standards for revegetation may be based on the percent vegetative cover, productivity, plant density, diversity, or other applicable measures (NMMRO Section 13 (4)(g)). Percent vegetative cover, productivity, plant density, diversity, or other applicable measures should be based on preventing erosion. A representative of the Sawyer County Land and Water Conservation will determine adequate revegetation using percent vegetative cover. Since a primary objective of this work is to stabilize the site it is important to provide a high degree of vegetative cover, as quickly as possible. This will result in greater protection of the soil from the effects of raindrop impact, which will be absorbed by the vegetative "canopy". This protection translates into reduced erosion and sedimentation. 13. A plan, and if necessary, a narrative showing Best Management Practices to be employed before and during non- metallic mine operation. These shall address how to minimize erosion and pollution of the surface and groundwater resources (NMMRO Section 13(4)0)). Recommend using the Wisconsin Construction Site Handbook for determining adequate erosion control practices for the site. Exposed soils will be seeded with a cover crop and seed mixture to quickly revegetate the site and stabilize the soils. 14. A plan and a narrative showing erosion control measures to be employed during reclamation activities. These shall address how reclamation activities will be conducted to minimize erosion and pollution of surface and groundwater (NMMRO Section 13 (4)(h)). The Wisconsin Construction Site Handbook is recommended for determining adequate erosion control practices for the site. The operation is going to be conducted in stages to minimize the total area exposed to erosion. Run-off should not be a factor due to the flat topography of the site and less than one -foot high slopes. 15. A description of any areas which will be reclaimed on an interim basis sufficient to qualify for the waiver of fees, Wisconsin Administrative Code, and release of financial assurance and which will be subsequently disturbed prior to final reclamation. Descriptions shall include an identification of the proposed areas involved, methods of reclamation to comply with the standards in Part II and timing of interim and final reclamation, as authorized by s. NR 135.41(12), Wis. (NMMRO Section 13 (4)(i)). Sequential interim reclamation will be done so as to minimize the area impacted and to reduce the fees. Once a phase is completed and the area is stabilized Ken LaCoy will request of the Sawyer County Regulatory authority that the area be considered temporarily reclaimed for the purposes of reduction of fees. 16. The reclamation plan shall contain criteria for assuring successful reclamation in accordance with s. 11(8), (NMMRO Section 13(5)). Performance standards are based on protecting against erosion, protecting groundwater and surface water. One year after an area has been reclaimed a representative of Sawyer County Land and Water Conservation will determine if percent of vegetative cover is adequate. Any unacceptable areas are to be fixed by the operator and a return visit by a LWC representative will determine if the site is acceptable and financial assurance can be released. 17, The operator shall provide a signed certification that reclamation will be carried out in accordance with the reclamation plan. The operator shall also certify that the Best Management Practices are installed and maintained. The landowner and lessee, if different from the operator, shall also provide signed certification that they concur with the reclamation plan and will allow its implementation. In the following situations, the landowner and lessee, if different from the mine operator, are not required to submit a written certification. The operator shall provide written evidence that the landowner and lessee, if different from the operator, have been provided with a written copy of the reclamation plan, and that: a. The mine operator has submitted a reclamation plan for an existing in accordance with Sawyer County Non -Metallic Mining Reclamation Ordinance Section 12.20, or b. The operator has submitted a reclamation plan for a new or reopened mine in accordance with Sawyer County Non -Metallic Mining Reclamation Ordinance Section 12,30 which is located on land for which a lease agreement or memorandum of lease between the landowner and applicant was recorded prior to August 1, 2001 (NMMRO Section 13(6)). I. (operator) certify that reclamation will be carried out in accordance with the reclamation plan and the required Best Management Practices are installed and maintained. Operator Signature Date I, _biz. 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LAKE COURLLES Beach s 40 to z $ _ 120 - 120 LAKESHORE R $ o tr s BASS LAKE'SW' PAGE 22 r✓' TONE LAKE REALTY .00 REALTY CAREN BUSINESS (715) 885-6036 TEOANMOORT TOLL FREE (800) 322-0529 SALES A880CIATE FAX (715)885-8040 Webelte. www.stanclakeresity.com CELL 612-812-7870 136 W. Hwy 70 • PO Box 38 E-Mall Stonel-akeRealty®aol.com Stoke Laka, WI 84878 • EXCAVATING + ROAD BUILO;N • DIG PONDS • GRAVEL SAND GRAVES.. • 8F_RCH SAND EXCAVATING • SCREENED TOP 'WIL.. • ROCK - is Dr-Wo SITE Highway 6 SOLlth Hayward. Wiscansin 54843 (7 1 5) 934-3139 N i mL *� vjco*)O m v4go m c)C5 " `c�\Nnt (� O oao��''a �M ���Cti` L/ O O /yam •� ra�r'a E-1GyCti �av �``,, pd WaIUCgq a"-24 n ry rx 7 Cl) d y � � q T a - I f-h •t �• 493 ittle ,� __•.._..� .�- �-,,�f .,�: �_� y; g take ,�• .1.ff.µ w r L �� r r r , � • .� � 4 � f �y,y C.5 r 114 N� _,u.t.- S l \ ,• S �:.:! ��=elf ,� �- ►�'` `-.�li` u�..•---1� `� _,.f �� �J-� J _.�^ � I � �� l �{ 3�' f -� '' � L �� \� ..' h r, ti �i� .J1��f • r[ � .r iL��` � �' Name: BEAN LAKEµ Location: 045' 57' 49.2" N 091' 30' 48.3" W J Date: 4/3/103 Caption: LaCoy Pit Scale: 1 inch equals 800 feet Copyright (0) 1997, Maptech, Inc Critical Area Planting (Acre) Code 342 Natural Resources Conservation Service Conservation Practice Standard 1. Definition Planting vegetation, such as trees, shrubs, vines, grasses, fortis, or legumes on highly erodible or critically eroding areas. II. Purposes The purposes of this practice are to revegetate bare soils and stabilize eroding sites. Ill. Conditions Where Practice Applies This practice applies to sites where bare soils and erosion are found in conjunction with agriculture, construction, forestry, mining, and wetland restoration activities and where natural revegetation is unlikely to occur. This practice does not apply to tree planting mainly for wood products. IV. Federal, State and Local Lawns Critical area planting practices shall comply with all federal, state and local laws, rules or regulations. The operator is responsible for securing required permits. This standard does not contain the text of the federal, state or local laws. V. Criteria A. Site Assessment - A site assessment shall be conducted, documented, and incorporated into the design. The assessment shall be performed to determine physical site characteristics that will influence the appropriate seeding mixture and establishment procedures. The site assessment shall include evaluation of: soil characteristics, aspect, slope, exposure to sunlight, proximity to natural plant communities, proximity to nuisance, noxious and/or invasive species, site history, moisture regime, climatic patterns, soil fertility, and previous herbicide applications. B, Site Preparation - Site preparation activities shall include: Slope Stabilization - Grade to a stable slope when shaping. For slopes steeper than 2H:1 V, special practices such as soil hiaengineerrng may be required. These practices shall follow approved design procedures located in the NRCS Engineering Field Handbook (EFH), Chapter 18. Eliminate all overlalls. The toe of the slope, or the outlet of the concentrated flow channel, shall be stable before attempting seeding on the slope. In some cases, concentrated flow may need to be diverted during establishment period. 2. Topsoiling - A minimum of 4 in. of friable soil material or topsoil shall be added and mixed to exposed rocky, sandy, gravelly, shaley material, or extremely fine textured subsoil. 3. Seedbed Preparation - Do not use conventional tillage where desirable vegetation is already present or where the site is environmentally sensitive. During recommended seeding periods seedbed preparation shall immediately follow construction activities. For seeding outside recommended seeding periods other erosion control methods such as applying mulch or seeding temporary cover, shall be performed. Seedbed preparation methods include: a. Conventional Tillage - Prepare a tilled, fine, but firm seedbed. The seedbed shall contain enough fine soil particles for uniform shallow coverage of the seed and contact with moisture and nutrients. When preparing a site for native species, it is important to have a firm seedbed. CuIti1)ack or roll before and after seeding if broadcast, b. No -Till - Control existing vegetation through mowing, burning, or herbicide Conservation Practice Standards are rovewed periodically and updated if needed. To Main the current version of this standard, NRCS, W I contact your local NRCS offce or the W5ccrtsin Land and Water Conservation Association office, Madison, Wl, at (6t18) 833-1833. 5/00 'Words in the standard that are shown in italics are described in X. Definitions. The words are italicized the first time they are used in the text 342-2 application. If desirable species are mixture containing a minimum of 30 present, consider spot treatment to control seeds/fi unwanted species. (2) For wet-mesic and wet sites; Seed 4. Fertilization mixtures may be developed from Agronomy Technical Note 5 using the a. When using introduced species on dry, dry- following guidelines. For seeding at mesic, and mesic sites, ensure proper pH these sites, select 8 species, with a and fertility. In lieu of soil testing, apply a minimum of 3 from forbs and 3 from minimum of 1501bs. Of 20-10-10, and 2 grass/sedge/rush. Apply a minimum of tons of 80-85 lime or equivalent. 16 oz. PLS per acre. b. For native species, fertilizer and lime are b. Seed Mixtures - Introduced species not recommended. Plant mixtures that are potentially invasive and harmful to native plant communities C. Seeding shall be evaluated prior to seeding. See Table 5 for standard seeding mixtures for 1. Seed Selection - Seeding rates are based on introduced species. See Table 6 for pounds or ounces of Pure Live Seed (PLS) per guidelines for custom seeding mixtures for acre. Where seed germination and purity can introduced species. When designing a not be assured, a waiver will be required from custom mixture, 50% of the mixture must the State Agronomist. be grass. Use introduced species only in places where 2. Concentrated Flow Channels - For dry, dry - mesic, and mesic sites seed introduced they will not spread into existing natural areas. For example, a dam is constructed in the middle species. For wet-mesic sites, consider using of a pasture that is composed of bluegrass, native species. For wet sites use native quackgrass and smooth brome grass. Since species. abundant introduced species surround the dam, it could be seeded with either the standard mesic 3. Inoculation - Legume seed shall be native mixture composed of native species or inoculated in accordance with the manufacturer's recommendations. When introduced species mix #6, which is composed of introduced species. Another example is if an seeding with a hydroseeder, the amount of embankment is constructed as part of a wetland inoculant shall be increased 5 times the recommended rate. Inoculant shall not be restoration which is adjacent to an existing natural wetland. Introduced species would grow mixed with liquid fertilizer. in this location, but due to the presence of the natural wetland, the embankment shall be 4. Methods - Seed grasses and legumes no seeded with a native species mix. more than'/a in. deep. Distribute seed uniformly. Mixtures with low seeding rates a. Seed mixtures -Native Species require special care in sowing to achieve proper seed distribution. Seed may be Where available, local genotype species are broadcast or drilled., as appropriate for the site. If drilled, proper calibration is preferred. Refer to Agronomy Technical essential. Note 5 and the following guidelines to develop your seed mixture, considering cost and availability of seed. Example seed 5. Seeding Dates -Tables 1 and 2 show mixtures are shown in Table typical dates for normal seasons. Specific seasonal conditions may require (1) For dry, dry-mesic, and mesic sites: adjustments to the seeding dates. Date of seeding is a critical factor in detemi ring For these mixtures select: 4 grasses (a minimum total of 80 oz. (5 lb.)/acre of whether a seeding will succeed or fail. The grass seed, each grass to be seeded at a specific date that provides the best chance for success will vary from year to year with minimum of 8 oz./acre), plus 5 forbs, including 1 legume. Forbs must be prevailing moisture and temperature seeded at a minimum of 6 seedslflx. conditions. Planting at either end of the allowable range is riskier than the middle of This guideline should result in a the range. See Figure 1 for planting zones. NRCS, W I 5/00 342 - 3 Central Figure 1 d� e North Bayfleld 111 99PT Douglas Ashland Irr n �fLf D Washburn j Sawyer MISS f Buman p • Florence Taylor St. Croix Dunn Pletce Eau Claire h Buffalo 7}ale�. paeiaeu Jellison Monroe LaCro Vernon nce Farea' Oneida Marinette Lincoln Langlade t Marathon rmm Shawano D Wood Portage Waupace lbw' Oulagamte naa Juneau Ad. Waushara Whsnabaga Mantlowbi I `•••• Fond du let 9 Columbia podge Weslf Ington Grant .. .. w ke SouthLafayette Green Rock WaMrorth Racine l NRC 5 00 342 - 4 Table 1 -Seeding Date/Ranges for Native Mixtures Fall DormantSeeding Spring Seeding Northern Thaw - 7/15 10/8 - Snow Cover Zone Central Thaw - 6/30 10/15 - Snow Cover Zone Southern Thaw - 6/30 11/1 - Snow Cover Zone Table 2 - Seeding Date Ranges for Introduced Grasses and Legumes further seedbed preparation is required. Frost seeding shall not be made on areas covered with ice or snow. Do not frost seed into winter wheat or winter rye. 6. Companion Crop - Where erosion is a concern, a companion crop or mulching will be used. a. For Introduced Mixtures - Oats, barley, winter wheat, rye, or spring wheat shall be seeded at the rate of V/z bushels/acre in the spring or fall. Annual rye grass may be used in lieu of small grain at the rate of 3 lb/acre. With the exception of annual ryegrass, the companion crop shall be mowed before heading. Mow 8 - 10 in. high to avoid harm to the permanent seeding. b. For Native Mixtures - Where planting a companion crop, use a mixture which Spring Late Summer contains: Canada Wild Rye (Blymus canadensis), seeded at 1-2 lbs. PLS/acre or Side -oats Grama North 5/1 - 6/15 7/15 - 8/10 (Boutelouen cunpendula), seeded at 1- - — — 2 lbs. PLS/acre, or Oats (Avena sativa) Central 4/15 - 6/1 8/1 - 8/21 seeded at'/s bushel/acre (spring only). 7. Temporary Cover Crop - Areas needing South 4/1 - 5/15 8/7 - 8/29 protection during periods when permanent seedings are riot made shalt be seeded to annual species for temporary protection. a. Dormant Seeding - Dormant seeding for See Table 3 for seeding rates. The residue from this crop may either be incorporated introduced specie plantings occur when into the soil during seedbed preparation at construction is completed and seedbeds are the next perma neat seeding period or left on prepared between the end of the late the soil surface and the planting made as a summer seeding period and November 1. no -till seeding or frost seeding. Do not Seeding will be done after November 1. seed temporary covers after October 15 in These seeding dates are risky. A split the southern and central zones and October application of seed may also be made, using 1 in the northern zone. half in November and the balance in the early spring. Table 3 -Temporary Cover Crop b. Frost Seeding - Frost seeding is only available for introduced specie plantings. Frost seeding is sowing the seed on the soil surface that has been made friable by freezing and thawing. The soil surface is usually "honeycombed" with small cracks. These seeding are made beginning in late February and March in the south through mid April in the north. Seeding is on . seedbeds which were prepared in the fall and were limed, fertilized, and mulched according to needs, and where a fall seeding of an annual crop may have been established for temporary protection. No NRCS, W I 5/00 Species Rate/Acre Oats 3 bushels Corn (drilled) 3 bushels Sudangrass 35 pounds Cereal Rye 2 bushels Winter Wheat' 2 bushels Annual Ryegrass 25 pounds Rye and winter wheat will be destroyed by seedbed Preparation at next permanent seeding period. 342-5 8. Mulching - Construction that exposes sand, gravel, or rocky material shall be mulched after seeding. Steep areas that are topsoiled shall be mulched. After the seeding period has passed, mulch shall be applied for protection on all disturbed areas subject to erosion. If companion or temporary cover crops are being used, mulching may not be necessary unless site conditions dictate the use. Mulch shall be applied following criteria outlined in NRCS Field Office Technical Guide (FOTG) Section IV, Standard 484, Mulching, 9. Protection - Protect all critical area plantings from animals and traffic (vehicle or foot) during the establishment period. In some cases, silt fences and/or erosion control malting/netting may be needed to protect the seeding. VI. Considerations A. Consider seeding at a lower rate and making 2 passes to ensure adequate coverage. Check seed boxes regularly to ensure even distribution. B. Heavy traffic and/or compacted soil areas may need special site preparation prior to seeding. C. Sprigs, root stocks, crowns, cones, culms, and sod may be considered where appropriate. D. Woody shrubs or trees may be used only after initial stabilization. Plant in accordance with the purpose of the planting. See NRCS FOTG Section IV, Standard 612 - Tree Planting, Standard 562 - Recreation Area Improvement, Standard 580 - Streambank and Shoreland Protection, and the DNR Interim Best Management Practice Shoreline Habitat Restoration for Developed Areas. Also see NRCS Engineering Field Handbook, Chapter 16, Streambank and Shoreline Protection and Chapter 18, Soil Bioengineering for Upland Slope Protection and Erosion Reduction. E. Consider using carriers such as vermiculite, sawdust, and soybean meal to increase volume and weight for uniform distribution. F. Consider limited or no use of herbicides one year prior to seeding. If herbicides must be used, be sure there is no potential for carryover. VII. Plans and Specifications Specifications for establishment and operation of this practice shall be prepared for each field or treatment unit according to the Criteria, Consideration, and Operation and Maintenance sections described in this standard. Specifications shall be recorded using approved specification sheets, job sheets, narrative statements in the conservation plan, or other acceptable documentation. Vlll. Operation and Maintenance A. Noxious weeds and other undesirable species must be controlled at all sites. During the first year, mow native plantings at 30=day intervals or when weeds are 18"-24" high. Mowing height should range from 6"-12". Spot spraying or hand pulling may be needed for some noxious species such as Thistles and Purple loosestrife. B. Sites may require periodic maintenance consisting of mowing, burning, or herbicide treatment. C. Sites should be inspected periodically to ensure objectives are being met. IX. References Curtis, J. T. 1959. The Vegetation of Wisconsin: an ordination ofplant communities. University of Wisconsin Press, Madison, Wisconsin, 657pp. Henderson, R. A. 1995, Plant Species Composition of Wisconsin Prairies: an Aid to Selecting Species for Plantings and Restorations Based Upon University of Wisconsin -Madison Plant Ecology Laboratory Data. Wisconsin Department of Natural Resources Technical Bulletin No. 188. Ladd, D. and Oberle, F. 1995. Tallgrass Prairie Wildflowers, A Field Guide. The Nature Conservancy, Nichols, S. and Entine, L. 1976. Prairie Primer. University of Wisconsin - Extension, publication G2736, 44pp. Packard, S. and Mutel, C. 1997. The Tallgrass Restoration Handbookfor Prairies, Savannas and Woodlands. Society for Ecological Restoration, 463pp, NRCS, W 1 5/00 342-6 Rock, H. W. 1971. Prairie Propogation Handbook. Boerner Botanical Gardens, 60pp. United States Department of Agriculture - Natural Resources Conservation Service. Engineering Field Handbook, Chapters 16 and 18. United States Department of Agriculture - Natural Resources Conservation Service -Wisconsin, Agronomy Technical Note 5. United States Department of Agriculture - Natural Resources Conservation Service. Wisconsin Field Office Technical Guide, Section IV, Standards 612, 562, and 484. X. Definitions Soil Bioengineering (V.B.1) Practice of combining mechanical, biological and ecological concepts to arrest and prevent shallow slope failures and erosion. Dry Prairies (V.C.l.a.(1)) Dry Prairies occur mostly on somewhat excessively drained and excessively drained soils. This would include soils such as; Sparta, Impact and Plainfield. DryMesic Prairies (V.C.1.a.(1)) Dry-Mesic prairies are transitional prairies between Dry Prairie and Mesic Prairie. They occur on some somewhat excessively drained and some well drained soils. Examples of Dry- Mesic soils would include Billett, Dickinson and Rassett. Genotype (V.C. La) A group of individual plants which share a specified genetic makeup. For example, all big bluestem plants that are genetically adapted to grow and mature in the climatic conditions found in the driftless region could be considered a genotype. NRCS, WI 5/00 Introduced Species (V.C.1.) Plant species that historically would not have been found in North America until they were brought here by travelers from other parts of the world. This would include smooth bromegrass and alfalfa. Some of these species may have a wide distribution such as Kentucky bluegrass. Mesic Prairie (V.C.l.a.(1)) Mesic Prairies will be found on most moderately well and well drained soils which have moderate to very high Available Water Capacity. Mesic Prairies also occur on some somewhat poorly drained soils with low or very low available water capacity or perched water tables. Mesic prairies would be expected on soils such as; Markham, Varna, Parr, Plano, Dresden, Warsaw, Tama, and Downs. Native Species (V.B.3.a.) Plants species that historically would have been found growing in North America such as Big bluestem or Green needle -grass. Pure Live Seed (PLS) (V.C.1.) A relative value representing the quality of the seed of a given specie. PLS is calculated by multiplying the percent germination times the percent purity. Wet-Mesic Prairie (V.C.l.a.(2)) Wet-Mesic prairies are transitional between Wet Prairie and Mesic Prairie. Most Wet-Mesic Prairies occur on somewhat poorly drained soils. Wet-Mesic Prairies would occur on soils such as Beecher, Elliott, Lamartine, Locke, Elburn, Kane, Matherton, Muscatine, Curran and Rawley. Wet Prairie (V.C.La.(2)) Wet prairies occur on soils with poor and very poor drainage. They can also be found on some frequently flooded sites. Wet prairies can be found on soils such as; Ashkum, Barry, Brookston, Ossian, Pella, Sebewa, Garwin and Ettrick. 342 - 7 Table 4 - Example Seeding Mixtures for Native Species 1 Site Type Common Name Genus and species Plant Type Seeding Rate in oz/acre PLS Little bluestem Schizachyrium scoparium Grass 32 Big bluestem Andropogon gerardii Grass 24 Side -oats grama Bouteloua curtipendula Grass 16 Switchgrass Panicum virgatum Grass 8 Dry Sand dropseed Sporobolus cryptandrus Grass 4 Rough blazing star Liatris aspera Forb 1• Evening primrose Oenothera biennis Forb 1 Prairie cinquefoil Potentilla arguta Forb 1 Black-eyed Susan Rudbeckia hirta Forb 1 Purple prairie clover Dalea p urea Legume 2 Side -oats grama Bouteloua curtipendula Grass 24 Little bluestem Schizachyrium scoparium Grass 24 Switchgrass Panicum virgatum Grass 16 Sand dropseed Sporobolus cryptandrus Grass 16 Dry Rough blazing star Liatris aspera Forb 1 Spotted bee balm Monarda punctata Forb 1 Black-eyed Susan Rudbeckia hirta Forb 0.25 Hoary vervain Verbena stricta Forb 0.25 Purple prairie clover Dalea purpurea Legume 3 Side -oats grama Bouteloua curtipendula Grass 20 Little bluestem Schizachyrium scoparium Grass 20 Big bluestem Andropogon gerardii Grass 16 Indian grass Sorgastrum nutans Grass 16 Switchgrass Panicum virgatum Grass 8 Dry- Sand dropseed Sporobolus cryptandrus Grass 4 Mesic Rough blazing star Liatris aspera Forb 2 Yellow cone flower Ratibida pinnata Forb 1.5 Evening primrose Oenothera biennis Forb 1 Butterfly milkweed Asclepias tuberosa Forb 1 Black-eyed Susan Rudbeckia hirta Forb 0.5 Illinois tick trefoil Desmodium illinoense Legume 10 Big bluestem Andropogon gerardii Grass 24 Little bluestem Schizachyrium scoparium Grass 24 Indian grass Sorgastrum nutans Grass 24 Dry_ Switchgrass Panicum virgatum Grass 8 Mesic Heath aster Aster ericoides Forb 0.5 Bergamot Monarda fistulosa Forb 0.5 Black-eyed Susan Rudbeckia hirta Forb 0.25 Pale spiked lobelia Lobelia spicata Forb 0.1 Round -headed bush -clover I Lespedeza capitata I Legume 5 1 Consult Agronomy Technical Note 5 and Section IV.C.l.a.(1) for guidelines for species substitution. NRCS, WI 5/00 342 - 8 Table 4 (continued Site Type Common Name Genus and species Plant Type Seeding Rate in oz/acre PLS Indian grass Sorgastrum nutans Grass 24 Big bluestem Andropogon gerardii Grass 16 Canada wild rye Elymus canadensis Grass 16 Little bluestem Schizachyrium scoparium Grass 16 Switchgrass Panicum virgatum Grass 8 Oxeye Sunflower Heliopsis helianthoides Forb 2 Prairie blazing star Liatris pycnostachya Forb 2 Mesic Yellow cone flower Ratibida pinnata Forb 1.5 Cupplant Silphium perfoliatum Forb 1 Golden Alexander Zizia aurea Forb 1 Prairie cinquefoil Potentilla arguta Forb 0.5 Black-eyed Susan Rudbeckia hirta Forb 0.5 Evening primrose Oenothera biennis Forb 0.25 Purple prairie clover Dalea purpurea Legume 1.5 Canada milk vetch Aslra alas canadensis Le ume 1 Big bluestem Andropogon gerardii Grass 24 Indian grass Sorgastrum nutans Grass 24 Switchgrass Panicum virgatum Grass 16 Little bluestem Schizachyriuin scoparium Grass 16 Mesic New England aster Aster novae-angliae Forb 1 Bergamot Monarda fistuloua Forb 1 Yellow cone flower Ratibida pinata Forb 1 Black-eyed Susan Rudbeckia hirta Forb 0.5 Purple prairie clover Dalea purpurea Legume 2.5 Indian grass Sorgastrum nutans Grass 26 Big bluestem Andropogon gerardii Grass 26 Canada wild rye Elymus canadensis Grass 18 Switchgrass Panicum vergatum Grass 8 Fowl mannagrass Glyceria striata Grass 1 Prairie cordgrass Spartina pectinata Grass 1 Wet- Cupplant Silphium perfoliatum Forb 2 Mesic Yellow cone flower Ratibida pinnata Forb 1.5 Golden Alexander Zizia aurea Forb 1 Bergamot Monarda fistulosa Forb 1 Boneset Eupatorium perfoliatum Forb 0.5 Black-eyed Susan Rudbeckia hirta Forb 0.6 Common Ironweed Vemonia fasciculata Forb 0.5 Sawtooth sunflower Helianthus grosseserratus Forb 0.1 Canada milk vetch Astea alas canadensis Le ume 3 Big Bluestem Andropogon gerardii Grass 16 Switchgrass Panicum virgatum Grass 8 Little Bluestein Schizachyrium scoparium Grass 18 Prairie Dropseed Sporobolus heterolepis Grass 20 Canada Wild Rye Elymus canadensis Grass 18 Yellow Coneflower Ratibida pinnata Forb 1.5 Wet Blue Vervain Verbena hastata Forb 1 Mesic Prairie Blazing Star Liatris pycnostachya Forb 3 Virginia Mt. Mint Pycamhemum virginianum Forb 1 Prairie Dock Silphiuin terebinthinaceum Forb 2 New England Aster Aster novae-anglia Forb 1 Bergamot Monarda fistulosus Forb 1 Black-eyed Susan Rudbeckia hirta' Forb 0.5 Showy Tick Trefoil Desmodium canadense Legume 1 White Wild Indi igo Ba tesia lactea Legume 2 NRCS, W I 5/00 342-9 Table 4 (continued) Site Type Common Name Genus and species Plant Type Seeding Rate in ozJacre PLS Rice Cutgrass Leersia oryzoides Grass 2 Prairie Cordgrass Spartina pectinata Grass 2 Fowl Mannagrass Glyceria stipata Grass 2 Wool Grass Scirpus cyperinus Sedge 1 Fox Sedge Carex vulpinoidea Sedge 2 Wet Great Blue Lobelia Lobelia siphilitica Forb 0.5 Joe-Pye Weed Eupatorium maculatum Forb 2 Blue Vervain Verbena hastata Forb 2 Sneezeweed Helenium autumnale Forb 1 Marsh Milkweed Asclepias incarnata Forb 2 Spotted Touch-me-not Impatiens ca ensis Annual 2 Canada Bluejoint Calamagrostis canadensis Grass 1.5 Giant Mannagrass Glyceria grandis Grass 3 Virginia Wild Rye Elymus virginicus Grass 16 Awl -fruited Sedge Carex stipata Sedge 2 Common Rush Juncus effusus Rush 1 Wet Great St. Johns Wort Hypericum pyramidatum Forb 0.5 Nodding Beggarstick Bidens coronata Forb 1 Blue Vervain Verbena hastata Forb 2 Culver's Root Veronicastrum virginicum Forb 0.25 Virginia Mt. Mint Pycanthernum tenuifolium Forb 1 Boneset j Eupatorium perfoliatum Forb 2 NRCS, WI 5/00 342 - 10 Table 5 - Example Seeding Mixtures for Introduced Species Mix # Common Name Genus & Species Seeding Rate in lb./ac PLS Smooth Bromegrass Bromus inermis 10 1 - Dry-Mesic and Creeping Red Fescue Festuca rubra 3 Mesic Sites Alfalfa Medicago sativa 3 Red Clover Trifolium pratense 3 2 - Dry-Mesic and Smooth Bromegrass Bromus inermis 15 Mesic Sites Alfalfa Medica o sativa 3 Smooth Broniegrass Bromus inermis 5 3 - Mesic Sites Creeping Red Fescue Festuca rubra 2 Kentucky bluegrass Poa pratensis 2 Birdsfoot trefoil Lotus corniculatus 2 4 - Mesic Sites Smooth Bromegrass Bromus inermis 15 Creeping Red Fescue Festuca rubra. 2 5 - Mesic Sites Kentucky Bluegrass Poa pratensis 4 Creeping Red Fescue Festuca rubra 3 Smooth Bromegrass Bromus inermis 14 Timothy Phleum pratense 1 6 - Mesic Sites Red Clover Trifolium pratense 2 OR Alsike Clover Trifolium hybridum 1 OR Birdsfoot trefoil Lotus corniculatus 2 Redtop Agrostis alba 1 7 - Wet Mesic Sites Timothy Phleum pratense 2 Red Clover Trifolium pratense 5 8 - Wet Sites Redtop Agrostis alba 2 Alsike Clover I Trifolium hvbridum 1 2 NRCS, WI 5/00 342 - 11 Table 6 - Custom Seeding Mixture for Introduced Species 1 Genus and species Name Plant Type Moisture Regime Single Species Seeding Rate (lb/ac PLS) Deep rooted species Bromus inermis Smooth bromegrass Grass DM, M. WM 20 yes Agrostis alba Redtop Grass 4 ---- Festuca rubra Creeping red fescue Grass 5 ---- Festuca rubra ssp falax Chewin s red fescue Grass 5 ---- Festuca arundinacea 'Tall fescue Grass 10 yes Phleum pratense 'Timothy Grass 8 ---- Poa pratensis Kentucky bluegrass Grass M, WM 8 -- .Lotus comiculatus Birdsfoot trefoil Legume .M, WM 6 ---- Medica o sativa Alfalfa Legume D, DM, M 12 yes 'Trifolium hvbridum Alsike clover Legume 3 --- Trifolium pratense Red clover Le ume DM, M, WM 10 ---- Trifolium repens Ladino clover ILegume M, WM 3 — It is required that at least 50% of the custom mixture is composed of grass. Example: A seed mixture of 50% red clover, 25% bromegrass, and 25% red fescue is desired. What would be the seeding rate of each specie in the mixture in pounds of Pure Live Seed (PLS)? To solve this problem, take the pure stand seeding rate in PLS pounds per acre for each specie, multiply this value times the percent of that specie desired in the mixture and the answers will be the seeding rates of each specie in pounds of PLS per acre. Specie Pure Stand Seeding Rate Red Clover 10 Bromegrass 20 Red Fescue 5 Percent in Mix 50% 25% 25% Seeding Rate Pounds PLS/acre for Mixture Total pounds PLS/acre = 11.25 5 5 1.25 MRCS, WI 5/00 SOIL CONSERVATION SERVICE MULCHING (ACRE) Definition Applying plant residues or other suitable materials not produced on the site to the soil surface. Purpose To conserve moisture, prevent surface compaction or crusting, reduce runoff and erosion, control weeds, and help establish plant cover. Where ARPlicable On soils subject to erosion on which low -residue -producing crops such as grapes and small fruits are grown; on critical areas; and on soils that -have a low infiltration rate. specifications )1, General Concentrated flow of runoff water from areas above those to be mulched shall be diverted before mulch is applied. Mulch shall be applied uniformly to both seeded and unseeded areas and anchored in place. When applied to seeded areas, mulch shall be applied immediately after seeding. Mulch shall be applied to unseeded areas and secured in place within 48 hours after completion of construction when soil conditions permit.. (Such areas are usually seeded or receive other treatment at a later date.) 2. Mulch Materials a. Mulch shall consist of straw or hay that is reasonably free from -grain, weed seed, mold, or long-fibered wood cellulose. The mulch may be applied by hand, blower, or other suitable equipment. Straw of winter wheat or rye is preferable to spring -seeded grains, as fewer weed seeds generally are present,, b. Excelsior retention blankets or similar materials may be used in place of straw mulch in areas where water concentratesc USDA-SCS-Wisconsin Section IV Technical Guide 07/87 484-2 c. Heavy jute matting may be used in place of straw mulch in areas where water concentrates. d. Wood cellulose fiber mulch may be used in place of straw mulch when applied with a hydroseeder. e. Other materials may be used such as wood chips, wood bark, -corncobs, sawdust, gravel, or long-fibered wood cellulose. 3. Preparation forMulching All areas to be mulched shall be reasonably smooth and free of sticks, stumps, and stones larger than 3 inches in diameter; and free of rills and gullies. If the area to be mulched is to be seeded, see Critical Area Planting (342) for seedbed preparation seed mixtures and application of lime and fertilizer. 4. Rate of Mulch Straw and hay mulch shall be applied at the rate of 1 1/2-2 tons per acre. This amount is 6 to 7 stems thick. Some soil can be seen. Wood chips or wood bark shall be applied at the rate of 6-9 tons per acre. Wood cellulose fiber mulch, applied with a hydroseeder, shall be applied at the rate of 1,500-2,000 pounds per acre. Apply a tackifier when the slope exceeds 3 to 1. Long-fibered wood cellulose shall be applied at the rate of 3/4- 1 1/4 tons per acre. Corncobs shall be applied at the rate of 5 tons per acre. Gravel shall be applied approximately 2 inches deep and shall consist of pieces 3/4 to 2 inches in diameter. 5. Anchoring Straw and Hay Mulch Regardless of the anchoring method used it shall be done at the time of or immediately followin the -application of the mulch. Use one of the following methods for anchoring mulch. a. Punch mulch into soil with a dull, weighted disk. Chopped straw is preferable if this is done. The preferred method is to use an anchoring tool that has a serrated straight disk that punches mulch into the ground, to a depth of approxi- mately 2 inches. Anchor at right angle to the slope. USDA-SCS-Wisconsin Section IV Technical Guide 07/87 484-3 b. Bituminous material. Use asphalt emulsion in accordance with manufacturer's recommendations. The mulch may be treated with a bituminous material that conforms to the requirements of type SS-1 of the standard specification for emulsified asphalt AASHO designation: M140. Emulsified asphalt will not be used when air temperatures are below 32 F (0 C). Follow manufacturer's recommendations on mixing and temperature control. The materials shall be blown from a machine and uniformly deposited over the area in one operation. The 1 1/2 tons per acre of mulching materials shall be applied to a loose depth of 1 to 2 inches on the soil surface, using a minimum 150 gallons of emulsified asphalt per acre. This is 1 gallon for each 20 pounds of straw. The machine used for placement of mulch shall blow or eject by constant air stream a controlled amount of straw or hay. It shall also introduce into the air stream a spray of asphalt. The amount of asphalt shall be sufficient to partially coat the mulch material and produce a spotty tack thereon which hold the mulch in place. Mulch materials shall not contain moisture in excess of that which will.permit uniform feeding through the machine. c. Wood cellulose fiber mulch may also be used to secure straw or hay. The rate shall be 750 pounds per acre applied over the straw or hay. d. Use of paper, jute, or polypropylene netting materials applied and anchored in place in accordance with manufacturer's recom- mendations. e. Small areas of mulch can be covered with loose soil. f. Mulch may be tied down by using stakes and string. Drive 10- inch stakes about 8 inches into the soil every 4 feet in a square pattern. Stretch string over mulch between stakes on both a square and criss-cross pattern. Secure string to stakes. String should consist of binder twine, or its equiva- lent. g. Hay and straw mulch tackifiers may be used.,' Follow manufac- turer's recommendations for rates and application methods. USDA-SCS-Wisconsin Section I-V Technical Guide 07/87' 484-4 6. Laying Excelsior Retention Blankets Excelsior soil retention blankets or similar materials shall be applied according to the manufacturer's recommendations. Ferti- lizer and seed shall be applied before the blankets are laid. When more.than one width is required, and on ends, provide a mini- mum 4-inch overlap. Lay downstream blankets first, working upstream. The netting side of the blanket shall be on the top side. 7. Layin_ Heavy Jute Matti Jute matting, when used, shall be installed in accordance with the manufacturer's recommendations.: One-half of the specified amounts of seed shall be sown prior to installation of the jute and the remaining seed after installation of'the matting. Jute matting shall be applied only on smooth, loose surfaces. After laying, stapling or fastening, and seeding, roll the jute matting to provide proper contact between the soil and the jute. 8. Applying Polypropylene Nettin Polypropylene netting may be used, in conjunction with straw or hay, where runoff concentrates on areas where securing straw or hay with bituminous materials is undesirable. Use in accordance with manufacturer's recommendations. Fertilizer, seed, and straw or hay mulch should be applied first. The netting is stapled over the mulch. 9. Wood chips or wood bark may be used alone. (Average weight per cubic yard is about 400 pounds. Thus, about 5 cubic yards equals 1 ton.) About 10 to 12 pounds of nitrogen (N) needs to be applied per ton of mulch when wood chips are used in order to have N available for plant growth. 10. Other Materials (Corncobs, sawdust, or gravel) These materials make a suitable mulch for specific purposes and are generally used only on small areas. oil in Area Seed Dealers Chetek Feed and Farm Supply 646 Banks St. Chetek (715) 924-4588 Exeland Feed Mill Exeland (715) 943-2691 Hayward Feed and Seed 15944 Hwy 63 S. Hayward (715)634-9875 Northern Lakes Feeds 10494 Wisconsin Ave. Hayward (715) 634-2384 Area Mulch Dealers American Excelsior Co. 831 Pioneer Ave. Rice Lake (715) 234-6861 1-800-777-SOIL Area Nurseries Hayward State Nursery 16133 W. Nursery Rd. Hayward (715) 634-2717 http: //www. dnr.state.wi. us/org/land/forestry/Nursery/order/index.htm Loon Call Nursery 10663 N. McClain Rd. Hayward (715)462-9298 Wali Nursery Route 9, Box 9089 Hayward (715) 266-3965 a z m 0= O :* r- ZZM � _..Z Z�= > Oi rn O G) R1 <D-1 •'4 � r- O w N eJ' noo r-D 7 o3 r Zzm W ..z 2T= > O O N ovrn < D -� —1rn r O 4 O<Zo Cc;�-V r c > d m I 0 N � t + t z + O 00 w Ul v, ch N � f a a N W 01 N cocn d� co C31 'p W 0o — w ao - W N .W �P IV W Ol 11 n W AM m O n r M a0 W O Ll Mil E'