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HomeMy WebLinkAbout018-1078-90-000 COUN1*1 S? PLANNING &. ZONING August 17,2007 File#: LU0087/SE0113 Raymond Davy Agri-Waste Energy, Inc. 2054 Loren Road St.Paul,MN 55113 Re: St.Croix County Land Use Permit-Filling and Grading in the Shoreland District, Code AdministratA Parcel#36.29.17.549B,Town of Hammond 715-386-4680 Dear Mr. Davy: Land Information&:>* Planning This letter confirms zoning approval for filling and grading to construct a gravel driveway 715-386-4674 access in the Shoreland District of Baldwin Creek in accordance with the plans you submitted as an addendum to your special exception application to modify an existing natural gas meter Real Prorty station. Staff finds that the storm water and erosion control plans meet the standards in Section 715- -4677 17.29(2)(c) of the St. Croix County Zoning Ordinance. This approval is subject to the findings Re ychng and conditions stipulated by the St. Croix County Board of Adjustment in its special exception fly-386-4675 decision dated April 26, 2007 (File#SE0113), as well as the following additional condition recommended by the St. Croix County Land and Water Conservation Department in its review of the plans: 1. Phosphorous fertilizers shall not be used to establish vegetation on the site, unless a soil test confirms that they are needed. This approval does not allow for any land disturbance, vegetation removal, or development beyond the limits of this request. Your information will remain on file in the St. Croix County Planning and Zoning Department. It is your responsibility to ensure compliance with any other local, state, or federal rules or regulations. If you have any questions,please do not hesitate to call. Sincerely, Jenny Shill x Zoning Administrator/Land Use Spec' list Eric: Land Use Permit Cc: Clerk,Town of Hammond Dean Doornink,Jon-De Farm, Inc. Alana Edwards,Northern Natural Gas Steve Olson, St. Croix County Land and Water Conservation Department Dan Baumann,Wisconsin Department of Natural Resources ST.CRoix COUNTY GOVERNMENT CENTER 1 101 CARM/CHAEL ROAD, HUDSON, W/ 54016 715386-4686 FAx P O, C0.SAUVT-CR0,X.Wl.US WV%VV.;^.SAINT r,C IX.VV.US L O •w �4 S Q It\ c mop cc ui 3 � _ m .- a .- a Q O o O ._ ~ O UJ cc O o� m •w . = C c p Z 0 0- y V m x V 3 .y N O V m C O cc V w c O _ ' ♦,; a O E ._ N1 m CL r Z V O C I0 V c � o o s � g L � 3 0 m c 0 o a- Mi c � E c a _CL � �i � oa f� 6,/I T Office Use a Only 04-k • LAND USE PERMIT • Revised 12-27-2006 Planning & Zoning APPLICATION u ° n Properly Owner I A.,;� �p Y���C� C Contractor/Agent:J64 Mailing Address: 010,c Y n. 1.1 SEC P,. 'i o 9 2007 Daytime Phone: 044 a Daytime Phone: ST.CR01X COUNTY 7' Ce11: (74 r © 'D E-mails loj+ " 49•04 —le/CeA'h a/E-mail: 4� V Y/bti.�Slt%e Site Address: �d C Property Location: 1/4, WE 1/4, Sec._3L9,T._2�LN.,R.I]W.,Town of Computer#: L g - to - 9O - ca _ Parcel#:—30 u• t a > 3 Zoning District(Check one): O AG. O AG. I1 O AG.RES. O RESIDENTIAL O COMMERCIAL O INDUSTRIAL Overlay District(Check all that apply):( )SHORELAND O RIVERWAY O FLOODPLAIN O ADULT ENTERTAINMENT Type of Land Use Permit Request(Check one): ( ) Animal Waste Storage Facility $550 ( )Wireless Communication Tower(Co-location) $550 ( ) Nonmetallic Mining Operation $550 ( )Lower St.Croix Riverway District $350 't, Silig ( ) Shoreland $350 ( ) odplain $350 ( )Temporary Occupancy $350 4 F rading&Filling, 12-24.9% Slopes$350 ( ) Livestock Facility $1,000 ( )Other: (/Permit processed in conjunction with a Land Division, Special Exception or Variance $50 State the nature of your request: /� �• l.,A 11 C +� CGS+ Yd C Zh ' /f e .b e ZA iing Ordinance Reference I attest that the information ontained in thi plication is true and correct to the best of my knowledge. Property Owner Signature: f Date Contractor/Agent Signat Dat O Complete Application Accepted: /�/_ By: Fee Received: $ Receipt#: �J i 715-386-4680 St.Croix County Government Center 715-3864688(Fax) MDCO.SAJNT-CROIX.WLUS 1101 Carmichael Road,Hudson,W154016 WWW.CO.SAINT-CRO_1X - w � :. ".a F✓ z. A<,, aSE, h'¢i 3.Ea✓ 5 APPLICATION: Applications will not be accepte u tplicant has: jo • met with th o review the application; • submitted a copies plus the origin of the completed application to the Zoning Administrator; • resolved any and Muse violations and paid any outstanding fees owed to the Planning and Zoning Department; • signed the application form(the signatures of the property owners and agents acting on their behalf are required); and • submitted the appropriate application fee(nonrefundable)payable to the St.Croix County Planning and Zoning Department. REVIEW: The Zoning Administrator will review the application for completeness and assign a file number to the application. The Zoning Administrator may require additional information and will notify the applicant of this within 10 days. Upon receiving a complete application and supporting documents,the Zoning Administrator will: • send copies of the applications to the appropriate reviewing agencies for comment.Applicants are encouraged to contact their town to discuss their application and inquire about necessary building permits and approvals at the town level; • schedule a site visit to the applicant's property,at which time the applicant shall flag all applicable property/project corners and label the flags accordingly;and • review the file and prepare findings for approval or denial of the permit within 60 days. Upon approval,the permit will be mailed to the applicant or to the applicant's agent. If approved,the land use permit will be valid for one year from the date of the permit issuance.The applicant may also be required to apply through the Town for a local building permit.All site plans,pictures,and other materials submitted with the application become the property of the Planning and Zoning Department and will remain in the file. 3� T ❑ Completed and signed application form with fee. ❑ A general written statement that specifically explains the request. ❑ A statement indicating whether or not a private water or sanitary system is to be installed. ❑ Recorded Warranty Deed(may be obtained at the Register of Deed's office). ❑ A complete site plan showing: • project location in the town; • lot/parcel dimensions with total lot area,property lines,and all applicable setbacks; • location of existing access roads;right-of-way,road setbacks,and recorded easements; • location of all existing and proposed structures with their square footage and distance from setbacks; • location of existing and proposed POWTS,wells,driveways,parking areas,access,signs,and other features; • location of slopes 12%and greater(minimum contours to be determined by the Zoning Administrator); • all blufflines and slope preservation zones(Riverway)and setbacks from blufflines; • location of the OHWM of any abutting navigable waterways and all setbacks from the OHWM; • location and landward limit of all wetlands,specifications and dimensions for areas of proposed wetland alteration; • existing and proposed topographic and drainage features and vegetative cover; • location of floodplain and floodway limits on the property;and • any other unique limiting conditions of the property or information deemed necessary by the Zoning Administrator. For projects that involve land disturbance requests,the following additional information may be required: ❑ Detailed drawings(scale should not be greater than 1 inch to 200 feet). ❑ Grading plan showing grading limits and pre and post contours. ❑ Project schedule and contractor list. ❑ Erosion control plan(Best Management Practices). ❑ Storm water management plan stamped by an engineer and including all runoff calculations. ❑ Vegetation plan including schedule,seeding rates,and.species size,type and location. ❑ Other documents: NOTE: All maps, plans, and engineering data shall be no larger than 11" x 17". No covers, binders, or envelopes. Staple or paperclip your application in the upper,left-hand corner. Pane 2 of 2.Rev December 15. 2006 Erosion Control and Storm Water Management Plans "AGRI-WASTE ENERGY,INC" "NATURAL GAS METER STATION" Town of Hammond,Wisconsin Purpose The purpose of this document is to provide the necessary information for the Erosion Control Plan and the Storm Water Management Plan per St. Croix County requirements and is consistent with Administrative Code NR 216 and NR 151 permitting. It is further intended to provide specific information on erosion control and storm water management that can not be included within the design plans. The owner, contractor, and Short Elliott Hendrickson, Inc. (SEH)will work together to verify that the installation and maintenance of all erosion control and stormwater management practices. However, it is the contractor's responsibility to follow the plans and this document. Applications The applicable application is included with this document. Construction will not commence until all permits are obtained. It is contractor's responsibility to complete all required paperwork associated with the permits and to follow all permit conditions. I. Erosion Control Plan (NR 216.46) A. Required Information 1. Description of site and nature of construction activities. The site is located in the Town of Hammond. The construction activities are related to creating a driveway and turn around to facilitate access to the meter station. 2. Description of the intended sequence of major disturbing activities, such as grubbing,excavating,or grading. The disturbing activities will consist of driveway excavation and grading, stockpiling salvaged and reused materials,culvert installation, and storm water management. The site is relatively flat with the exception of areas near the Baldwin Creek. Excavation will be required in the construction of the driveway and the storm water management practices. Cut and fill was minimized to the extent possible. Construction Schedule a. Obtain all applicable plan approvals and other applicable permits. b. Construct gravel entrance/exit pads to minimize tracking. C. Install silt fence as shown on plan. d. Strip and stockpile topsoil and install silt fence on the downslope side of the stockpiles. • • e. Install stormwater facilities in conjunction with all other improvements. Seed all disturbed areas as soon as final grades are obtain. This shall occur in stages as possible. . 3. Estimates of the total area of the site and the total area of the site that is expected to be disturbed by construction activities. The total site area to be served is less 2.1 acres,with less then 1 acre being disturbed. All construction will occur in phases as possible. All disturbed areas will either be incorporated into swale and infiltration areas or be seeded and mulched. 4. Estimates,including calculations,if any,of the runoff coefficient of the site before and after construction activities are completed. *See Appendix A for storm water design documentation. HydroCad were used for runoff calculations. HydroCad is based in the TR-55 methodology. 5. Existing data describing the surface soil as well as subsoils. Soil borings were not completed for this site. Field visits as well as current construction practices showed approximately 1' of topsoil with gravely sand underneath. 6. Depth to Groundwater. Elevation information is unknown. 7. Name of immediate named receiving water. The immediate receiving waters is Baldwin Creek. B. Site Map Requirements 1. Existing topography and drainage patterns,roads and surface waters. Plan set is provided that details this information. 2. Boundaries of the construction site. Plan set is provided that details this information. 3. Drainage patterns and approximate slopes anticipated from major grading activities. Drainage patterns will be changed on site, however,this will be minimized to the greatest extent practicable. 4. Areas of soil disturbance. Soil disturbance will occur in the creation of the driveway, and storm water management practices.The plan set shows the areas of soil disturbance. I 5. Location of major structural and non-structural controls identified in the plan. The major controls are the swales and infiltration basins. Other practices include silt fence, seeding,bio rolls,and riprap inlet/outlet protection. 6. Location of areas where stabilization practices will be employed. Stabilization practices will be employed throughout the project site. The stabilization practices that will be used include seeding and rock riprap. The rock will be used for energy dissipation and erosion protection. 7. Areas,which will be vegetated following construction. All areas except the streets will be vegetated at the end of construction. 8. Area extent of wetlands acreage on the site,and locations where storm water is discharged to a surface water or wetland. There are some wetland areas adjacent to the creek bed. Impact to wetlands from stormwater facilities will be minimal. C. Control Measure Requirements 1. Description of interim and permanent stabilization practices,including implementation schedule. Interim practices include:the use of silt fence and bio rolls to catch sediment,and storm water basins. Permanent stabilization practices include vegetating all exposed areas, and stormwater basins. Silt Fence will be dug in across the slope on the down slope side of road construction activities,before construction begins. Silt fence will be installed around all stockpiles that will remain in one location longer than 24 hours. The silt fence shall be entrenched by spreading 8 inches of the silt fence fabric into a 4 inch by 4 inch trench on the up slope side of the fence. The trench shall be back filled and compacted. The fence shall be supported with adequate stakes on the down slope side of the fence. The stakes shall be driven into the ground and be of adequate height. Stakes shall have a maximum spacing of 10 feet. The installation of the stormwater basins will be completed before roadwork begins or in tandem with the driveway construction. Vegetation shall be maintained on the site as possible within all work areas.All seeding shall be done with vegetation that will protect against erosion and be consistent with the existing vegetation on site. Contractor shall inspect all erosion and sediment control practices for stability and functionality following all storm events and at a minimum on a weekly basis. Repairs will be made immediately to maintain practices as designed. All sediment collecting practices shall have sediment removed when it becomes 0.5 feet in depth. Interim practices shall remain in place until vegetation has been established in the road ditches and there is no erosion occurring on site. It is the contractor's responsibility to remove the temporary practices. The only practices anticipated to be removed is the silt fence and bio-rolls. 2. Description of structural practices to divert flow away from exposed soils, store flows or otherwise limit runoff and discharge of pollutants from the site. Diverting flows around construction site is not practical. Stabilization and erosion control practices will be used to limit the transport of sediment at the site. 3. Trapping of sediment in channelized flow. Sediment will be trapped using both interim and permanent practices. Sediment will be trapped using silt fence, and bio-rolls. 4. Staging construction to limit bare areas subject to erosion. Construction will occur in phases as possible and to the greatest extent practicable. 5. Minimization of tracking at all times. Tracking will be minimized by utilizing the existing gravel roads to enter and exit the site. At times, it may be necessary to wash vehicle tires before leaving the site. b. Clean up of off-site sediment deposits. Off-site deposits must be removed immediately. It may be necessary to sweep or scrape deposits. Street cleaning shall be done as necessary, flushing of the street is not allowed. 9. Proper disposal of building and waste materials at all sites. All building materials and waste shall be taken off site and disposed of properly. Excess soil stock piles shall not be placed in sensitive areas or drainage ways as directed by owner. Owners may require excess soil material to be removed from site. Disposing of materials properly will ensure that the materials are not carried by runoff to receiving channels, surface waters,or leached into groundwater. Materials and wastes include but are not limited to garbage, debris, cleaning wastes,wastewater,toxic materials, or other hazardous materials. 10. Stabilization of drainage ways. Constructed drainage ways will be stabilized with seed and mulch where slopes are 2 percent or less. Drainage slopes greater than 2%and sideslopes greater then 3:1 will be seeded and protected with erosion control blankets. Riprap linings shall be placed at all culvert inlets and outlets. 11. Installation of permanent stabilization practices as soon as possible after final grading. Permanent stabilization will be placed directly after final grading. Where possible, final grading will be achieved before the graveling of streets begins. Immediately after final grade is achieved seeding,mulching, and erosion control blankets shall be placed as required by the plans. 12. Minimization of dust to the maximum extent practicable. If drought conditions persist and dust becomes a problem,the contractor is required to sprinkle exposed soils or roadbed with water. 13. Velocity dissipation at outfall and along outfall channel to provide a non- erosive flow. Rock outlet protection and spillways are velocity dissipaters. 14. Additions Unexpected conditions may occur where the previously described practices may not be adequate. If unexpected erosion/massive erosion occurs that is not being handled by the practices described,the erosion must be dealt with immediately. The contractor/owner shall contact SEH immediately for assistance. II. Storm Water Management Plan (NR 246.47) A. Requirements 1. Description of the management practices that will be installed during the construction process to control peak flow,pollutants and runoff volume that will occur after the construction operations have been complete.Descriptions of practices to control impacts from runoff volume and pollutants,which may include but are not limited to: The plan shall include an explanation of the technical basis used to select the practice. *See Appendix A for storm water design documentation. 2. Provisions for long-term maintenance for any permanent structures. The storm water facilities will be maintained by the property owner Agri-Waste Energy Inc. III. Post Construction Performance Standard for New Development and Redevelopment(NR 151.12) A. Requirements(NR 151.12 (5)) 1. Total Suspended Solids (NR 151.12 (5(a)) (Reduction of total suspended solids,TSS,by 80%,compared to no runoff management controls for new development.) The performance of the practices designed is dependent on many variables,particularly the installation and maintenance of the practices. This is especially true of the temporary erosion control practices such r management as silt fence. Making erosion control and storm Ovate an g ement plans effective in the field requires cooperation between the engineer, owner, contractor, and all regulatory agencies. a. Temporary Erosion Control Practices i. Silt Fence The United States Environmental Protection Agency(EPA) publication"Construction Site Storm Water Runoff Control— Silt Fence"was used as the basis of the silt fence's effectiveness. This publication along with the"Wisconsin Construction Site Handbook"was used to determine location and to provide the contractor with installation specifications within the plan set. No determination was made as to exact quantities of TSS with and without runoff controls. The EPA publication states,"the following effectiveness ranges for silt fences constructed of filter fabric that are properly installed and well maintained: average total suspended solids removal of 70 percent, sand removal of 80 to 90 percent, silt-loam removal of 50 to 80 percent,and silt-clay-loam removal of 0 to 20 percent. Removal rates are highly dependent on local conditions and installation." This particular site has a wide variety of soil types therefore it is difficult to predict the effectiveness of removing total suspended solids but it is expected to be a minimum of 80 percent,with correct installation and maintenance. ii. Mulching(and seeding) The EPA publication"Construction Site Storm Water Runoff Control—Mulch"was used as the basis for the effectiveness of mulch at reducing TSS. The following was stated within the EPA document: "mulching effectiveness varies according to the type of mulch used. Soil loss reduction varies according to the type of mulch used. Soil loss reduction for different mulches ranges from 53 to 99.8 percent. Water velocity reductions range form 24 to 79 percent." From the table provided in the EPA document,uncrimped wheat straw,2,242 kg/ha had an average loss reduction and an average water velocity reduction as compared to the other mulch characteristics shown. The uncrimped wheat straw would be consistent with the mulch that will be placed on site, and was determined to have a soil loss reduction of 84%and a water velocity reduction of 45%. Seeding and mulching is an important part of the permanent stabilization. Mulch also holds moisture and protects the seed from the impact of the rain,which increases the seed's chances of survival. I • • b. Permanent Erosion Control Practices/Storm Water Practices (NR 151.12) *See Appendix A for storm water design documentation. The effectiveness of the sediment basins were determined using the modeling program known as P8(Walker,Jr., William W., P8, Urban Catchment Model,Program for Predicting Polluting Particle Passage Thru Pits,Puddles,&Ponds)and was used as evidence that the basin can remove TSS. Precipitation and temperature data was used from a file provided in the model for Minneapolis,Minnesota. Minneapolis was the closest site with data available in the model. The results of the modeling are contained within Appendix A,Design Documentation. Peak Discharge has been maintained for the 2-year 24-hour event. For additional information see Appendix A,Design Documentation. I