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STORM SEWER POLLUTION PREVENTION PLAN (SWPPP)
<br />CRYSTAL BAY ESTATES
<br />1. CONSTRUCTION ACTIVITY INFORMATION
<br />This SWPPP was prepared by personnel certified in the design of construction SWPPP5. Copies of certifications
<br />are available upon request
<br />Protect Name: Crystal Bay Estates
<br />Project Location;
<br />Address :18Old Crystal Bay Road North RECEIVED
<br />City; Orono State: Mimheaals Zip Coda : 55358
<br />3.
<br />Methods to be used to promate infiltration and aediment removal on the ado priar to discharge
<br />• The water quality volume that must be treated by the projects permanent stamlwater managernant system
<br />described in Part I11.C. shall be 112 Inch of runoff from the new lmpervima surfaces created by the project.
<br />See Part NI.C.2 for more information an infiltration design and appropriate site conditions. if it fa determined
<br />that site conditions are not appropriate for Infiltration (e.g. lack cf 3 ft, of Separation to seasonally saturated
<br />ground water, proximity to bedrock, contaminated soils) the reasons should be documented to the SWrMWHar
<br />Pollution Prevention Plan (SWPPP) for the project. Infiltration is not requited in Hydrologic Soil Group D soils.
<br />Clay soils throughout the site resulted in volume reduction being achieved viafilbation shaft in three (3) of the
<br />onsite ponds.
<br />Timellnes fa be implemented on site for complatma the installation of the erosion prevention BMPs
<br />• Prior to Grading - Slit and tree fence to locate grading limits and provide down gradient sedimentcordml.
<br />Rack Entrance Berm to be installed.
<br />County Parcel ID Number (PID); 3311823340001pUG
<br />0 5 O i 6
<br />Grading - Erosion blanket wilt be utilized on ail 3:1 slopes. Biarolls will be used in near yard swales. MnDot
<br />CITY PROJECT N0.
<br />NRH i a9rdBr15 PE_R_WATE_RSHED OOMMENTS INFORMATION) OF THIS PRODUCT IS STRICTLY PROHIBITED WITHOUT
<br />seed mix #250 will be spread at a rate of 100 f iaJacre and fertilize with 20-0-10 at 100 Ibs.lacre. Only
<br />Project Typo: Residentlaf CommercialAndustrial Road Construction
<br />phosphorus free fertilizer shall be used.
<br />Resldgntlal/Road,Construction
<br />Other ti�'
<br />Utility & Street Work - Inlet protection an all alarm sewer eatehbasins. Weekly street sweeping to puavead
<br />Cumulative Impervious Sur ace
<br />C O� 4R�{'0
<br />off --site vehicle tracking. However weekly sweeping may not be adequate. Sweeping is required 24 hours
<br />Number of acres to be disturbed:
<br />5.5 (tenths of an acre)
<br />atter discovery attack out.
<br />Phe -co drudlon acres of impervious surface:
<br />Post oonstruadon aches of impervious surface:
<br />2.0 (tenths of an acre)
<br />2.1 (tenths of an acre)
<br />' permanent BMPs - Sediment bays are to be Installed at fisted end sections draining into dry pond and
<br />Total new impervious surface acres:
<br />0.1 (tenths ofan acre)
<br />infiltration areas. Rip -rap to provide provide energy dissipollon and prevent emsku.
<br />Receiving Wil
<br />Nameof Water Body Type Special Watw? Impaired Water?
<br />Wetland 1 Wetland No No
<br />Wetland 2 Wetland No No
<br />MinnetankaSlubbs Bay Lake No Yes
<br />Dates of Construction
<br />Construction Start Dote: September 15, 2016
<br />Estimated Completion Data: November 16, 2016
<br />2. General Construction Project Information
<br />Personnel &Training
<br />Provide a certified erosion control supervisor in good standing with who is knowledgeable & experienced in the application of
<br />erasion prevention & sediment control BMPs. Supervisar ehaR work with the project engineer to oversee implementation of the
<br />SWPPP & the installation, Inspection & maintenance of the arceian control BMPs.
<br />Provide at lease one certified installer for each contractor or subcontractor that installs erasion control BMPs.
<br />Chain or Responsibility
<br />Owner! Developer & Contnactarare coparniteas for the National PO lu and Discharge Eleminadan System (NPDES)
<br />Consrucion Permit. Contractor fa responsible to comply with all aspects of the NPDES Construction Permit at all dmas unlit the
<br />Notice of Termination (NOT) has been filed with the MPCA or transferred to the home builder or another contractor. Contractor
<br />will develop a chain of command with all operators on the site to ensure that the SWPPP will be implemented & stay in effect
<br />until construction is complete, pts silo has final stabilization S NOT has been submitted to Me MPCA
<br />Describe the construction activity
<br />This +/- 15.4 acre development will consist of the land development of S single family detached homes, and 1,005 linearteet of
<br />streets. Other sail disturbing aclivites will include: hams building, driveway construction, and lot landscaping. This project will be
<br />mass graded and constructed in one phase, grading and utilities Willie completed in the fall oF201S.
<br />Soil disturbing activides wdl Include: Demolition of the existing structures, Installation of a rock entrance berm, clearing and
<br />grubbing, Installation of utllifiesiminor utifides(induding private utilities-gas,mWe,electric, etc..), the installation of silt fence and
<br />tree fence prior to grading, the installation of silt fence around The proposed panting areas after the grading Is complete, grading,
<br />re -spreading topsoil, and grading restoration which will consist of seeding and mulching all disturbed areas outside of the sheet
<br />row. Erosion blanket will also be installed on all 3:1 slopes or greater. Additional erasion blanket maybe used throughout the
<br />site. See the Erosion & Sediment Contrd Plan forspeoific locations.
<br />3. Temporary Erosion Prevention Practices
<br />Describe typos of erosion prevention BMPs expected to be Implemented
<br />Parimater Control shall be established around the site & around the base dstockpiles if the stockpilewill remain longarthan 30
<br />days. Perimeter control Is typically established with stltfence which also dennlates ureas not 47 be disturbed. Sill Fence
<br />locations are shown an the Grading & Erosion Control plans. Where possible 50Rbuffers shall be maintained around surface
<br />waters & werdand. Dual pertmeeer controls shad be Installed if work is to take place within Wit of surface waters 8 watlands.
<br />Eroslon blanket will be installed art all &I slapaa.
<br />Outing construction
<br />a. Stabilization of aff axposed areas must the initiated immediately to limit sail erosion but in no case letter than seven (7) days
<br />after the construction activity in that portion of the aite has temponvily or permanency ceased.
<br />Once grading is complete, temporary erosion BMPs shall be Installed Immediately (le. bioHafls, erosion blanket, ditch checks,
<br />etc). No later than seven (7) days, the permanent stabilization should be In place.
<br />b. Temporary sediment basin requjnamenta described in Pan 111.8. 1,5 must be used for cormnmh drainage locations that
<br />serve an area with five (5) or more acres disturbed at one time.
<br />This project is being constructed in 1 phase. The permanent dry aedimerd basins shall be constructed first and all ort -alta
<br />drainage shall he routed to the ponds. The site does not have any concentrated awaleo tat will directly diadhargeati-site
<br />List anticipated BMP Quantities
<br />• Slit Fence (Before Constrvclial3,615 L.F.
<br />• Slit Fence (After Construction) - 300 LF.
<br />• Sift Fence for Septic Protection Areas (Before Construction). 2,500 L.F.
<br />• Slit Fence for Tree Protection (Hem's Conebuctlan) -1,000
<br />• MNDOT Category 4 Turf Refntiooement Mat -155 S.Y.
<br />• Erosion Blanket -750 S.Y.
<br />Methods of dissipating velocity along stormwaierconveyance channels? outlets
<br />• Rlp•rep will be used at all f eradand structures
<br />• Check Dams - installation of check dams or other grade control prautce to ensure shout flow and prevent rifts (far slopes
<br />greater than 75 feet with a grade of 3:1 or steeper)
<br />Methods to be used for stabilization of ditch and swale wed oertmeters
<br />Bfo-rolls shall be used for stabilization of ditches and swalas as shown on the Erasion Car l Plan.
<br />Methods to be used for anergy dissipation at pipe outlets
<br />Rip -rap will be used at flared -end structures for energy dissipation. See plan for quantities.
<br />Additional Erosion Control Prevention Measures to be hnplementod on Site
<br />• Erosion Blanket - This blanket wilt be Installed as indicated on the erosion and sediment control plan. 1t will
<br />provide slope protection until the turf Is established. For retaining wall construction the grading coMracar will
<br />install Erosion blanket an the temporary 1:1 slopes unlit the wall construction can be canplated.
<br />• - Bto-rolls - Bto-rolls will be installed In swale areas to help slow rurmf and minimize erosion.
<br />• SeedingRastoration-TemporarylPermanent5tabilization (Seeding and Mulching)- Temporary seeding and
<br />mulch must be placed on all disturbed sail within 14 days, unless actively being worked ort. All disturbed areas
<br />will be restored with 4' to 6' of topsoil. The reatoradon shall begin within 72 hours of the grading completion.
<br />The seed mix shall be MNDot Mix No. 250 applied at a rete of 100 Ibshicre and fertilized with 20-0-10 at a rete
<br />of 100 be. per acre. The mulch shall be Type 1 and applfed at a rate of 2 tons per acre, disc anchored (with
<br />disc blades set nearly straight) immediately after placement.
<br />+ Sodding - Two types of sodding will be done with this project. The first Will be for erasion control pxolactian for
<br />the streets, after the installation of the curb and the minor utilities the contractor will Install two tows of Bad
<br />behind the curb fora temporary erosion protection. The second type of sod will be for the yards once the
<br />house construction Is complete.
<br />4. Temporary Sediment Control Practices
<br />Methods of sediment control BMPs to be implemented on site
<br />• Sediment controls for temporary or permanent drainage ditches and sediment basins that are designed as
<br />part of a treatment system
<br />• Installation of check dams or other grade control practice to ensure sheetfiow and prevent rills (for slope
<br />lengths greater than 75 feet with a grade of 3:1 or ateepar).
<br />Sediment control practices an all down gradient perimeters prior to land disturbing activities.
<br />• Storm drain inlet protection for all Inlets.
<br />• Silt fendng or other sediment control surrounding temporarysctl stockpiles.
<br />• Minimize vehicle tracking of sediments (e.g,, stone pads, concrete arsteel wash hacks, orequivalent
<br />systems).
<br />Street sweeping of tracked sediment
<br />Methods to be used for dawn gradient perimeter control
<br />•
<br />Slit Fences- are designed as a temporary sediment barrier consisting of a fillerfabric attached to support
<br />pasts. This site has three applications for sift fence. These applications are as follow:1. the Installation of sift
<br />fence along the grading limits to protect the wetlands from sediment during the grading and utility construction
<br />process, 2. the instaAalion of sill fence around the created ponds and rain gardens atter construction to
<br />control the sediment runoff until the turf is established and the development Is completed, & the installation of
<br />silt fence surrounding temporary stockpiles.
<br />if down gradient BMPs are overloaded (based on frequent failure crexcessive maintenance), additional up
<br />gradient BMPs shall be installed to eliminate the overloading. The inspector or contractor shall notify the design
<br />engineer to establish appropiate up gradient BMP's or climate any paint load sources.
<br />Methods to be used to contain Stockpiles
<br />Slit fence- will be used to provide perimeter control around stockpiles.
<br />Methods to be sued forstann drain inlet pmtodion
<br />• Storm Drain Inlet Protection - Storm drain inlet protection Is a sediment barrier placed around a storm sewer
<br />inlet. This structure traps sediment before It enters the storm sewer system. The utilitywntractorwi{I be
<br />-squired to install inlet protection per the City's details.
<br />• 3utlat Structures and Outlet Protection - There ars wetlands located within & adjacent to this project, as a
<br />ssuit outlet structures are proposed to transfer water from the storm water treatment pond to the wetland
<br />after treatment. These structures will serve lo provide skimming and rate control. Rip -rap will be placed at
<br />the base of all aprons to provide erosion protection by protecting the downstream soils from turbulence and
<br />Sigh discharge velocities.
<br />Methods to minimize vehicle tracking at construction exita'and shraotswespina activities
<br />Temporary Rack Construction Entrance - A rock entrance berth W constructed ofcoarse dean rock installed
<br />at the proposed entrance point for all construction vehicles. A detail of the rock entrance berm is shown an
<br />the final grading plan. This stone pad provides a tire cleaning mechanism for all vehicles leaving uta site.
<br />There Is one entrance for this project. Phase seethe Erosion &Sediment Control Plan for location of rock
<br />entrance bene.
<br />Street Sweeping - Weekly street sweeping shall be taking place. Howaverweekly sweeping may not be
<br />adequate. Sweeping Is required 24 hours afterdiacovery of back out.
<br />Methods to be used to minimize soil compaction and preserve top sou (unless Infeasible) on sits
<br />• Topsail will be strapped and stockpiled. Grading operations will be performed and held down 0.5' lo ailo wfar
<br />topsoil respreed.
<br />Measures to be used if Dewatering is required on site
<br />• Dowell shall be routed to the sadimamation ponds for treatment before leaving site. See F_malon Control
<br />Plan for direction on Dewatering methods.
<br />7. Pollution Prevention Mana em cit Measunes
<br />Single family lots within Ors overall site will be disturbed on a lot by lot basis as Ids are add & hones are
<br />constructed. Home construction shall disturb previously stabilized areas- Typically entire lots will be disturbed
<br />as finish grading Is completed. Areas not to be disturbed are typically designated by the use at silt fence.
<br />Topsoil shall be preserved by stockpiling with sediment conbul installed around the Perimeter of the stockpile. -
<br />Individual lobs under coratmction shad also install vehicle tracking measures ouch as rock entrance berm or
<br />atter tracking control BMP to maintain dean streets. Home builders shall be responsible far erosion & sediment
<br />control Installation, maintenance, SWPPP Inspection and record keeping for lots under their coretructon.
<br />Hame Construction BMP Phasing
<br />Protect lot area through use of one or a combination of the following; silt fence, mulch, bio -rolls, rock
<br />entrance berm, sad buffers or other approved method. In areas within 501t of surface waters redundant
<br />controls shall be installed if a 50ft buffer can not be maintained.
<br />install drainage protection on down gradient inlets.
<br />Establish staging 1 material storage area & Install temporary sanitary Facilities& supply dumpeters
<br />Prevent & manage spills of stored substances
<br />Install Rock entrance berm, maintain clears sheets
<br />Home Construction
<br />Manage & protect stockpiles
<br />maintain rock entrance berm & perimeter controls
<br />trench, install & conned utilities
<br />Continue vertical construction
<br />Keep streets clean at all times & maintain inlet protection
<br />Fine grad pads, Upon completion of fine grade pads & home construction soils disturbing activities,
<br />each lot shall be stabilized with sod, seed, mulch, hydromulch, hydroseed, straw matting or combination
<br />there of. Monitor stabilized areas until final stabilization is achieved
<br />Maintain clean streets
<br />Perimeter & temporary erosion & sediment controls are to remain in place until all up gradient areas
<br />have been permanently stabilized.
<br />Post Construction
<br />Remove silt fence after once final vegetation stabilization is established
<br />Remove inlet protection
<br />Remove all construction materials & debris from site
<br />clean all drainage structures
<br />Remove all temporary erosion & sediment control BMPs & stabilize areas left disturbed.
<br />File NOT for individual Id
<br />5. Permanent Stomtwater Management System
<br />Will the project result in one acre or moat; o new Impervious area? -YES
<br />tfyea
<br />The water quality volume that must be treated by the projects pernanentstomwatermanagement system
<br />described In Part III.C. shall be one (1) inch of runoff from the new impandous surfaces created by this
<br />project. Where site conditions allow, at least % Inch of the water quality volume must be infiltrated. See Part
<br />III.C.2 for more information on infiltration desfgn and appropriate site conditions. ftt is determined that site
<br />conditions are not appropriate for infiltration (e.g. lack of 3 fL of separation to seasonalfyeat uraisd ground
<br />water, proximity to bedrock, contaminated sails) the reasons should be documented in the Siormwater
<br />Pollution Prevention Plan (SWPPP) for the project. Infiltration is rut required in Hydrologic Sal Group D
<br />soils.
<br />A copy of the Stomhwaer Management Report is available through the owneror engineer upon request.
<br />Sail boring and water level map is included In the Shonmxater Management Report
<br />6. inspection and Maintenance Activities
<br />Identifyindividual res onsfble for installin supervising, irin , ins i and maintains erosion
<br />prevention and sediment control BMPs on site
<br />The owner, North Oaks Company LLC, will be responsible for the operation and maintenance of lite erosion and
<br />sediment control BMPs. He will select individuals who will be responsible for the inspections, maintenance, and
<br />repair activities, and for filling out tha inspection and maintenance reports.
<br />Rapp Farts HOA will operate and maintain the stormwater ponds.
<br />The owner shall keep the SWPPP and all supporting documents for three years after tha Notice of TarmtnaWn
<br />(NOT). These documents include, but aren't limited to, the SWPPP Narrative, am/ amendments, Inspection and
<br />maintenance records, any stormwater related permits, any permanent operation and maintenance agreements,
<br />and calculations for temporary and permanent alla mwater management systems.
<br />Procedures to routinely inspect the construction site, including
<br />1. Description of retard -keeping requirements and content
<br />A maintenancelinapedion report will be mad after each Inspection. A copy of the report will be sent to
<br />the City.
<br />2. Frequency of Inspecdarrs
<br />Once every seven (7) days during active construction and;
<br />Within 24 hours after a rainfall event greater than 0.5 inches in 24 hours, and within seven(?) days alter
<br />that
<br />3. Areas to be inspected
<br />The silt fence will be installed prior to any site grading.
<br />Only about one half of the site will be exposed at any given time. The grading contractor will be finishing
<br />lots as the arts and fills are achieved in accordance with the approved grading plan.
<br />• Ali erosion control measures will be inspected every week and following any storm event greater than 0S"
<br />in a 24 hour period.
<br />• All erosion control measures will be maintained in goad working order. maintenance and repairs. will be
<br />initiated within a 24 hour period of the report. Monitoring of all repairs will be done.
<br />• Built up sediment will be removed from all silt fence when h has reached one-half of the fence height.
<br />•
<br />Slit fence will be inspected for depth of sediment, tears, and to see tithe fabric Is somra(y attached to the
<br />fence posts, and to sea if the fence posts are firmly in the ground.
<br />The pond and in6ltretlon/flOrstion area will be monitored for depth of sediment, and the build up of sediment
<br />will be removed at the end of the project, it necessary.
<br />• The embankment around the ponds and infiltratiantliltration areas will be inspected far any breeches or
<br />erosion scare, over compaction and any repairs needed, will be promptly made.
<br />• The seeding and mulching will be Inspected for any bare spots, washouts, and for healthy growth.
<br />If site conditions result in a needed erosion or sediment control BMP that is not planned for, the inspector or
<br />contractor shall contact the design engineer at Sothre-Sergquist Inc. (882.476.6000) to determine an appropriate
<br />plan and BMP to stabilize the affected area.
<br />BY I DATE ' REVISIONS USE (INCLUDING COPYING, DISTRIBUTION, ANOXJR CONVEYANCEOF
<br />I HEREBY CERTIFY THAT THIS PLAN OR SPECIFICATION WAS
<br />-
<br />CITY PROJECT N0.
<br />NRH i a9rdBr15 PE_R_WATE_RSHED OOMMENTS INFORMATION) OF THIS PRODUCT IS STRICTLY PROHIBITED WITHOUT
<br />PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT 1
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<br />#153749
<br />_REVISIONS _-
<br />NRH t 09,21116 fi REV_:SION_S_PER CrtY &LASHED COMh&ffs '. SATHRE43ERGQUI8T, INC: s EXPRESS WRITTEN AUTHORIZATION. USE WITHOUT
<br />AM A DULY REGISTERED PRC(FES IONAL ENGINEER UNDER THE
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<br />I SAID AUTNOR17ATION CONSTITUTES AN ILLEGITIMATE USE AND SHALL THEREBY
<br />INDEMNIFY SATHRE-BERGQUIST,INC. OFALL RESPONSIBILITY.
<br />LAWS 917 THE STATE OF MINNESOTA.
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<br />SHF ! 07/18/16 " - .- --ounaTCHANCEs - -
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<br />SATHRE-BERGQUIST, INC. RESERVES THE RIGHT TO HOLD ANY ILLEGITIMATE
<br />USER OR PARTY LEGALLY RESPONSIBLE FOR DAMAGES OR LOSSES RESULTING
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<br />MINNESOTA
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<br />FROM ILLEGiTMATE USE.
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<br />= ERARLIE A. WIEMERSLAGE, P.E. c�
<br />T _ '- _.
<br />Date: 07114!2016 Lic, No. 49189
<br />PSP
<br />Prectices for stonage of pesticides, herbicides, insecticides, fertilizers, treatment chemlarl, and tandeca�e
<br />matanals
<br />Petroleum Products: All onsite vehicles and equipment will be monitored for teaks and receive
<br />regular preventative maintenance to reduce the chance of leakage. Petroleum produce will be
<br />stored in a dghdy sealed container, which is clearly labeled. Any asphaltsubstances used onsite
<br />Will be applied according to the manufacdrrare recommendations.
<br />Fertilizers: Fertilizers will be applied only in the minimum amounts as recommended by he
<br />manufacturer. Once applied, the fertilizer will be worked into the soil to limit the exposure to
<br />stormwater.
<br />Paints: All containers will be tightly aeaied and stored when not required for use. Excess palm will
<br />not be discharged into the storm sewer system, but will be properly disposed of in accordance with
<br />local regulations.
<br />Practices for storape and disposal of hazardous materials ortmdc waste
<br />All hazardous materials like oil, gasoline and point must be propedysiored. To prevent spills and
<br />leaks, secondary containment is necessary for hazardous materials.
<br />A leak proof containment facllity shall be used for fuel storage tanks to prevent any leakage Cham
<br />lnfiltrating the ground.
<br />An effort will be made to store only enough products to do the required job.
<br />• All materials stored on site will be stored in a neat and ordedymanner.
<br />All products will be kept in theiroriginai container, with the original labels stili attached, unless they
<br />are not resealable.
<br />• Substances will not be mixed with one another unless recommended bythe manufacturer.
<br />Whenever possible all of a product will be used up before disposing of a container.
<br />Manufacturers' recommendations for proper disposal will befollowed.
<br />The site superintendent will routinely inspect the site to ensure properdisposal of all on site materials
<br />Collactim_starel and disposal.of solid waste fn compliance with Minn. R. ch. 7D36
<br />Solid Waste - All trash and construction debris from the site will be collected and deposited in a
<br />dumpster. A dumpster will be required for each new home constructed. The dumpstars shall be
<br />emptied as necessary. No construction materials shall be buried an site. All amid waste must be
<br />disposed of in accordance with the MPCA disposal requirements (Part IV.F.1)
<br />Momigarrient of portable kthlets to prevent tipping and disposal of sanitary wastes In accordance with
<br />Minn. R. ch. 7040:
<br />• Portable on-site sanitary and septa waste shall adequately be provided and maintained throughout
<br />the duration of the project
<br />• All sonitory sewer waste will be collected from the portable units as required by local reguiations.
<br />Spill prevention and responee, for feeling and equipment or Vehicle maintenance:
<br />Spill Control Practices -
<br />AII spills will be cleaned up immediately after discovery, in accordance with the manufacturers
<br />recommended methods.
<br />The spill area will be kept Well ventilated.
<br />Spoils of to>dc or hazardous materials must be reported to the Minnesota Duty Officer
<br />1-800.422-a79B.
<br />A log of the spill type, location, data, and time will be created bythe job suporinterhderd. The split
<br />prevention plan will be adjusted to include measures to prevent this type of spill from reaacruring.
<br />Containment and disposal of vehicle and equipment wash water and crohtb' _ engine degneasing on
<br />the site:
<br />• A defined and limited area of the site shall be used far textsmet washing of construction vehicles.
<br />Washing runoff shall be contained and disposed of In accordance with MPCA. No enema
<br />degreasing allowed onsite.
<br />Storage and disposal of concrete and other washout wastes so that wastes do not contact the around:
<br />A leak proof containment facility shelf be used for all liquid and solid wastes generated by concrete
<br />washout operations. Liquid and solid wastes shall not erns in contact with the ground and must be
<br />disposed of in accordance with the MPGA
<br />7. Final Stabilization
<br />Method of Final Stablilizatlon
<br />Upon final grading of anygiven portion of the site, final stabilization must be implemented within 14
<br />days of completion.
<br />a. Stabilization of all exposed areas must be indfated immediately to Ifmstsoil erasion but in no case
<br />later than seven (7) days ager the construction will in that portion of the site has temporarily or
<br />permanently ceased.
<br />Ono& grading is complete, temporary erosion BMPs shall be Installed immediately (le. bio -rolls,
<br />erosion blanket, ditch checks, etc). No later than seven (7) days, the permanent stabilization athould
<br />be in place.
<br />b. Temporary sediment basin requirements described In Part 111.6.1.5 must be used for common
<br />drainage locations that serve an area with five (5) ormore acres disturbed atonsill
<br />This project Is being constructed in one phase. The permanent dry sediment: basins shalt be conducted
<br />first and all on-site drainage shat be routed to the ponds. The site does not have any cancantreted
<br />awales that will directly discharge offsite
<br />Procedures for completino final stabilization:
<br />• Final stabilization Includes but is not limited to: seed & mulch as described above, Erosion blanket,
<br />bio rolls, sad, and after grading silt fence. All perimeter and down gradient slit fence shall be
<br />inspected and repaired as necessary. # 3858
<br />TITLE SHEET
<br />CRYSTAL L BAY ESTATES SW
<br />CHAMBERLAIN CAPITAL, LLC. SW
<br />
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