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GRANDVIEW <br />TORM WATER POLLUTION <br />PREVENTION <br />PLAN [SWPPP) <br />City of Lino Lakes, Minnesota <br />GENERAL EROSION AND SEDIMENT CONTROL <br />INSPECTIONS AND MAINTENANCE <br />1. The Permittee(s) (either the owner or operator) must routinely inspect the <br />construction site once every seven (7) days during active construction and within <br />24 hours after a rainfall event greater than 0.5 inches in 24 hours <br />2 AB nspeotlons and mantenana conducted dying conelroction must be recorded in <br />writing and these records must be retained with the SWPPP in accordance with <br />RECORD DETENTION. Records of each Inspection and maintenance activity shag <br />Inducts shag include <br />o. Dote and time inspections; <br />b. Nara of perscn(e) conducting ins ection8 <br />e Findings of inspections, including recommendations for corrective aetbno <br />d Corrective actions taken (bdudhg dates, times, and party completing <br />maintenance activities); <br />a. Data and amount of rainfall events greater than 1/2 inch (OS inches) <br />h 24 hours, and <br />C Documentation of changes mode to the SWPPP. <br />3. Where pats of the ronetruetlon site hove undergone find Mobilization, but work <br />remain an other parts of the site, inspections of the stabilized areas may be <br />reduced to once per month. Where work has been suspended due to frozen ground <br />conditions. the required Inspections and mohtenanee must take place as soon as <br />runoff occurs at the site or prier to resuming constructwo whichever comas first <br />4. Al erosion prevention and sediment control BUN must be inspected to ensure <br />Integrity and effectiveness Ad nonfunctional BMPe must be repaired. replaced, or <br />supplemented with functional BAPS The Pernitee(s) must investigate and comply <br />with the following inspection and maintenance requirements: <br />e All silt fences must be repaired. replaced or supplemented when they became <br />nanfanatknd (develop tears, detach from poste, post become dislodged from <br />ground et.) or the sediment reaches 1/3 of the height of the fence. These <br />repairs must be made within 24 hours of discovery, or as soon as the field <br />conditions allow access <br />b. Temporary and permanent sedimentation ponds must be trained and the sedanent <br />removed when the depth of the sediment collected in the bash reoehee 1/2 the <br />storage volume. Drainage and removal must be completed within 72 hours of <br />discovery ar as soon as field conditions allow access <br />c Surface waters, Including drainage ditches and conveyance systems, must be <br />inspected for evidence of sediment being deposited by erosion. The Pennitee(s) <br />must remove al deltas and sediment deposited h aurfoce waters, Including <br />drainage ways catch basin, and other drainage systems, and restobetre the areas <br />where sediment removal resutb in exposed sol. The removal and stabilization must <br />take place within seven (7) days of discovery unless preluded by legal, regulatory, <br />or phydcd occew constraints The Permltee shag use all reasonable efforts to <br />obtain access If preluded removed and stabilization must take plane within seven <br />(7) calendar days of obtaining access The Parader, is responsible for contacting <br />ore local, regional state and federal outhorttiea and receiving any applkubie permits, <br />prior to conducting any work <br />d Construction site vehice exit locations must be Inspected for evidence off-site <br />sediment troddng onto paved surfooes Tracked sediment must be removed from <br />all off -site paved surfaces, within 24 hours of discovery, or H applcoble, within a <br />snorter time. <br />e The Pemdttee(s) are responsible for operation and maintenance of temporary <br />and permanent water crudity management BLIPS, as well as dl crown prevention <br />and sediment control BLIPS, for the duration of the construction work at the site. <br />The Permittee(e) ore responsbe until another Pernitee has assumed control over <br />areas of the site that have not been finally stabilized or the site has undergone <br />find stab9lzatian, and a Notice of Termination hen been submitted to the MPCA <br />(see TERMINATION OF COVERAGE). <br />• If sediment escapes the construction she. off -site occumubtioas must be removed <br />in a manner and at o frequency sufficient to minimize off -she impacts (e.g., <br />fugitive sediment In streets could be washed into storm ers by the next ran <br />and /or pose a safety hazard to users of pundit streets). <br />5. Ad nfdtratbn areas must be inspected to ensure that no sediment from ongoing <br />construction activities is reaching the bfdtratbn area and these areas are <br />protected from compaction due to construction equipment driving across the <br />infiltration area <br />POLLUTION PREVENTION MANAGEMENT MEASURES <br />The Permitee(s) shall implement the following pollution prevention management <br />Measures on the site <br />1. Solid Waste Collected sediment, asphalt and concrete M9lingc, floating debris, <br />paper, plastic, fabric, construction and demolition debris and other wastes must be <br />disposed of properly and must amply with MPCA disposal requirements. <br />2 Hazardous Materioe OR, gasoline, point and any hazardous eubetonoes must be <br />properly stored Including secondary cantonment to prevent spill. leaks or other <br />discharge. Restricted access to storage areas must be provided to prevent <br />vandalism. Storage and disposal of hazardous waste Must be in coos:ien. with <br />MPCA regulations. <br />3. External washing of fracas and other construction vehicle must be Invited to 0 <br />defined area of the site. Runoff must be contained and walls properly disposed <br />of. No engine degreasing s allowed on site. <br />DEWATERING AND BASIN DRAINING <br />1• Dewotering or basin droning (.g.. pumped discharges trench/ditch cuts to <br />drainage) related to the construction activity that may have turbid or sediment <br />laden discharge water must be discharged to a temporary or permanent <br />eedbnentotion born on the project site wherever possible. If the water cannot be <br />discharged too sedimentation basin prior to entering the surface water, It must <br />treated with the appropriate 91P, such that the discharge does not adveroely <br />affect the receiving water or 400natreom landowner. The Permittee(s) must <br />ensure that discharge points ono adequately protected from erosion and scour. <br />The discharge must be dispersed over natural rock rlprrp, sand bogs plastic <br />sheeting or other accepted energy dissipation measure. Adequate odbnental'an <br />control measarrs are required for disaarge water that contains suspended solids. <br />2 Al water from dewatering or basin draining octfvitiw must be discharged in a <br />manner that does not cause nuisance condition, erosion in reserving channels or <br />on downsiope properties, a inundation in wetlands causing aignlflcont adverse <br />Impact to the wetland <br />AMENDMENTS 7D SMPPP <br />The Permittee(s) must amend the SWPPP as necessary to include addtiond <br />requirements, such as additional or modified BLIPS. designed to correct problems <br />identified or address situations whenever: <br />L There is a change In design.. construction, operotlon, maintenance, weather or <br />season conditions that has a significant effect on the discharge of pollutants to <br />surface waters or underground waters; <br />2 Inspection or investigations by site operators, local. state or federal officials <br />nd¢ate the SWPPP is not effective in eliminating or significantly minimizing the <br />discharge of pollutants to surface waters or underground waters or that the <br />discharges are causing water quality standard exceedances, or <br />3. The SWPPP is not achieving the general objectives of controlling pdWtonts in storm <br />water mscharges associated with construction activity, or the SWPPP is not <br />consistent with the term. and conditions of this permit <br />4. At ony time after permit coverage a effective, the MPCA may determine that the <br />project's storm water discharges may cause, have reasonable potential to cause, or <br />contribute to non - attainment of any applicable water quality standard. N MPCA <br />makes such a determination, the MPCA will notify the Permittee(s) In writing. In <br />response, the Permittee(s) must develop a supplemented BNP notion plan or <br />appropriate SIAPPP amendments describing SWPPP modifications to address the <br />Identified concerns and submit information requested by the MPC#, which may <br />Malude an Individual permit application. If MPCA's written notification regohoo a <br />response, blurs to respond within the specified tlmefrome constitutes a permit <br />violation <br />FINAL STABILIZATION <br />The Permltee(s) must ensure final stablizotlon of the site. The Permttee(s) must <br />submit a Notice of Termination within 30 days after find stabNzatton is complete, <br />or another owner/operator (Pennittee) has assumed control ova al areas of the <br />site that have not undergone find stabilization. Find stabilization can be achieved <br />in one of the following ways <br />1. AU sod disturbing at the site have been completed and all soils must be stabgized <br />by a uniform perennial vegetative cover with a density of 70 percent over the <br />entire previous surface area, or other equtvaint means necessary to prevent soil <br />feriae under erosive .eonditidne and; <br />e All dronoge ditches, constructed to drain water from the she after construction is <br />complete. must be stabilized to preclude erosion; <br />b. Ail temporary synthetic, and structural erosion prevention and sediment control <br />Best Management Plow (such as sat fence) must be removed as part of the site <br />fad Mobilization and - <br />e The Permhee(s) must dean out all sediment from conveyances and from <br />temporary sedimentation basins that are to be used as permanent water quality <br />mancgement basins Sediment must be stabilized to prevent R from being worried <br />back into the basin, conveyance and drainage ways discharging off-she or to <br />surface waters The dean out of permanent bastes must be sufficient to return <br />the basin to design capacity. <br />2 For resident. construction only, fad stabilization has been achieved when <br />temporary erosion protection and duo gradient perimeter control for individual lots <br />has been completed and the residence hen been transferred to the homeowner. <br />Additionally, the Permitee must distribute the APOA 'homeowner fact sheet' to the <br />homeowner to inform the homeowner of the need for, and benefits of foal <br />stabilization. <br />RECORD DETENTION . <br />The SWPPP, al changes to ft, and inspections and mantenonce records must be <br />kept at the site during construction by the Perrnitee who has operational control <br />of that potion of the sit. The SWPPP can be kept In either the field office of in <br />an on-site vehicle. <br />All owners) must keep the SWPPP, along with the following additional records, on <br />Re for three (3) years after submitted of the NOT as outlined in TERMINATION 00 <br />COVERAGE. This does not Include any records after submitted of the NOT. <br />1. My other permits required for the project <br />2. Records d ail Inspection end mdntenance conducted during construction <br />3. AI permanent operation and maintenance agreements that have been implemented, <br />including a1 right of way, contracts, eovenonte, and other binding requirements <br />regarding perpetual maktenenee and <br />4. AD required cdo,lotlons for design of the temporary and permanent storm water <br />management system. <br />TERMINATION OF COVERAGE <br />1. <br />Permittee(s) wishing to terminate coverage under this permit must submit o Notice <br />of lamination (NOT) to the 11PCA. Compliance with the permit is required until a <br />NOT is submitted. The Permittee(s) authorization to discharge under this permit <br />terminates of midnight of the day the NOT is signed <br />2. Al Permittee(s) must eubmlt o NOT within thirty (30) days after one or more of <br />the fo1Owing conditions have been met <br />a. Final Stabilization has been achieved on all portions of the site for which the <br />Permltee is responsible (naludmg the removal of ad temporary erosion control <br />measures such as set fence, end N applicable, returning agricultural land to its pre <br />construction agricultural use): - <br />b. Mother owner/ operator (Pamlico) has assumed control aging to Part IL8.5 of <br />MPCA Permit No. MN R100001 over all areas of the site that haw not been finally <br />stabeaeet or <br />• For residential construction only. temporary erosion protection and down gradient <br />perimeter control for ndmidud lots has been completed and the residence has <br />been transferred to the homeowner. Additionally, the PermRw must distribute the <br />MPCA's 'homeowner foctshcet' to the homeowner to inform the homeowner of the <br />need for, and beraflts of, find stab0aotnn. <br />SiTE SPECIFIC EROSION AND SEDIMENT CONTROL <br />81E 0133CRPRON <br />A) P801007 NAM . GRANDVIEW <br />6) PROJECT I OCATION: Between the dead ends of Stagecoach Trail behind Gethsenwny Church. <br />C) PROJECT DESCRIPTION: <br />This project wW consist of the construction of seven single -family homes and a public <br />street <br />Most hard surface nn-off is routed to a pre - treatment basin, which is to be dried to <br />prevent water infiltration. The bass 030 overflow to a bb- titration bosin whidi has an <br />underdran and a controlled outlet <br />Sod disturbing activities cam Include Installation of a rock construction entrance <br />Installation of slit rote where surface nn-off leaven site she graehp, to include the <br />Import of materiel and export of unsuitable sods watermoik sanitary sewer, and storm <br />sewer installation: building construction including foundation eocmatio n; parking lot and <br />roadway construction; and preparation for turf restoration. <br />E) PErrCENTACE HARD SURFACE 23 <br />F) 517E ARFAS <br />0) TOTAL m_ lR8ED AREA: 4.35 ACRES <br />H) <br />It ' 1 •,10. w . . . _ . . • .P a: . . . .0 0 . 1 ! ! • , . . <br />• Prior to any grodng operations, the contractor shall instal a rock canstruatlon <br />entrance and perimeter silt fence as shown on plan. (Contact City and /or County <br />to inspect erosion control measures prior to groding operation. If nemsoy.) <br />Additional set fence may be necessary N load conditions require. <br />• Provide "kn. (or approved spud) for ad erieting storm sewer Web that w91 receive <br />run-off during site construction. Provide inlet protection fa. on proposed storm <br />4ewer inlets within 24 hours of structure hstalbtbn. Wet protection to renwln <br />h -pace anbl site hen been etab9aed. <br />• Remove topsoil from site and place in temporary stockpile location (as determined <br />by Owner). Seed stockpile with temporary seed mix and mulch with weed -free straw <br />if stockpile is to remain in place far more than t me (3) doge <br />• Perform site grading on an areo- by-oreo - boss to minimize uncompleted areas As <br />each area is completed, all exposed soils must hove temporary erosion control <br />protection cc permanent cover according to the following time table <br />TYPE OF SLOPE <br />Steeper than 3:1 <br />7 days <br />10:1 to 3:1 <br />14 days <br />Flatter than 10:1 <br />21 days <br />(. Madmen time on even can <br />remain open when tin area is <br />not =Wady being worked.) <br />Ad sod seed mulch and fertilizer shed conform with the following MnDOT <br />specifications as modified below. <br />118E <br />BEFORE <br />CONslROCRON <br />CONS1FRUUCC110N <br />TOTAL ACE AREA <br />3.29 ACRES <br />TOTAL ESTIMATED IMPERVIOUS <br />0 ACRES <br />0.89 ACRES <br />TOTAL ESTIMATED PERVIOUS <br />3.29 ACRES <br />240 ACRES <br />0) TOTAL m_ lR8ED AREA: 4.35 ACRES <br />H) <br />It ' 1 •,10. w . . . _ . . • .P a: . . . .0 0 . 1 ! ! • , . . <br />• Prior to any grodng operations, the contractor shall instal a rock canstruatlon <br />entrance and perimeter silt fence as shown on plan. (Contact City and /or County <br />to inspect erosion control measures prior to groding operation. If nemsoy.) <br />Additional set fence may be necessary N load conditions require. <br />• Provide "kn. (or approved spud) for ad erieting storm sewer Web that w91 receive <br />run-off during site construction. Provide inlet protection fa. on proposed storm <br />4ewer inlets within 24 hours of structure hstalbtbn. Wet protection to renwln <br />h -pace anbl site hen been etab9aed. <br />• Remove topsoil from site and place in temporary stockpile location (as determined <br />by Owner). Seed stockpile with temporary seed mix and mulch with weed -free straw <br />if stockpile is to remain in place far more than t me (3) doge <br />• Perform site grading on an areo- by-oreo - boss to minimize uncompleted areas As <br />each area is completed, all exposed soils must hove temporary erosion control <br />protection cc permanent cover according to the following time table <br />TYPE OF SLOPE <br />Steeper than 3:1 <br />7 days <br />10:1 to 3:1 <br />14 days <br />Flatter than 10:1 <br />21 days <br />(. Madmen time on even can <br />remain open when tin area is <br />not =Wady being worked.) <br />Ad sod seed mulch and fertilizer shed conform with the following MnDOT <br />specifications as modified below. <br />118E <br />MOOT SPECIFICATION/NOTES <br />Sod <br />3878 <br />Seed <br />3876 <br />o For pending areas (above NWL) <br />MnDOT Mixture 350 (at 84 Ws /sae) <br />• For turf establishment <br />MOOT Mixture 280 (100 Ibis /sae) <br />MnDOT Ifahae 270 (120 Iles /acre) <br />Temporary Fad cover <br />Strong /summer <br />1 -2 yeas cover <br />2 -5 yeas cover <br />MnDOT Mbdure 1008 (100 lbs /sae) <br />MnDOT Mixture 110 (at 100 ibis /Done) <br />MnDOT Mature 150 (at 40 Ibis /ace) . <br />MnDOT Mixture 190 (at 60 Ibis /acre) <br />° For biro- fltrotian bosh <br />110007 Mixture 328 (at 88 its/acre) <br />Mulch <br />3882 (Type 1 - Disc Anchored) <br />Fertilizer - <br />3881 <br />Wood Fiber Blanket 3885 (Category 2) <br />00 To reduce weed establishment. mow 2 to 3 tirnes (30 days Wart) <br />during the let year with the mower deck about 6" - r off the ground. <br />Mow one time during the 2nd yea before weeds set thek seeds Bum or <br />mow once every 3-5 years following the initial 2 yeah of maintenance to <br />remove dead plant material and stimulate mw seed <br />• Mow a minimum of once per 2 weeks <br />The oantraatnr shag Pay special attention to al adjacent property lines and make <br />sure the erosion control practices haloes in those areas prevent migration of <br />sediment onto adjacent properties <br />If any slopes appear to be fading. additional sat fence. biorons and erosion control <br />blanket shall be added as needed <br />The contractor shag maintain and rep. as set fence (Inciudn9 the removd of <br />accumulated sediment) until vegetation is established and the site is stabilized (see <br />also INSPECTIONS AND MAINTENANCE). <br />• - Provide 11p -rap at al pops outlets wimp 24 hours of pipe installation. <br />• Maintain edt fence, ncbdng the removal of aonunmOated sediment through <br />completion of building construction. Set fence to be removed only after completion <br />of bulding construction and upon establishment of vegetation. <br />• Final grade swede areas upon stabilization of upstream areas <br />• Sod MI dsturbed drainage areas, nciudng swabs pond overflows around storm <br />sewer flared -end sections, and off - street catch basin. <br />• Install underground utilities (eater, sanitary sewer, storm sewer) in a manner mat <br />minimaes adverse impacts to the ctonowater BkPs.- <br />• Provide temporary mulch over al pervious areas. <br />• Upon grading completion the contractor shall provide native topsoil, seed and mulch <br />anchored with a straight set dos within 48 hours of find grading. <br />• Excess sod should be treated like other reposed sad and stabilized within 72 hours <br />My soil stockpiles td how Mt fence placed around perimeter. <br />• Adjacent streets shad be kept clean of oonetruetion materials, d"rf, and other <br />ends/sable material. When materials or debris have washed /bowed onto adjacent <br />streets. It is the Contractors responsibility to sweep /scrape streets as necessary or <br />as directed by the City. <br />EROGI0N Coma. lefa fie <br />STRUCTURAL PRACTICES <br />1. Set Fence - eel be Installed mks to any grading activities along the perimeter of <br />those portions of the W wal fd. are downstream of storm water nm -off. <br />2. Storm- Water Management - Strom eater drainage Mil be provided by sub and <br />gutter. storm sewer and catch basin Run-off Is to be collected and routed to <br />pre-treatment and ble- Atmtton basins. <br />3, Storrs Serer Outlet Protection - such as rip -rap and geotastee Star fabric <br />Mil be toadied of storm sewer outlets m a permanent erosion control <br />manure <br />4. Rode Construction Entrance - shed be end at ail locations where <br />combustion middes leave site onto hard ourface roods <br />5. Storm Sewer Wet Protection - shitl be used at al CBs to prevent cite <br />sadlment from wading Into pending basin. <br />CM-ER CONTROLS <br />1. Construction Waste Materials - Ail waste materials generated as o result of site <br />construction shag be collected and removed according to ail local and /or state <br />waste management regulations by a licensed solid waste management company. <br />The contractor ova ensure that all site personnel are instructed in these practices. <br />2. Hazardous Wastes - Ad hozodous waste materials shall be stored properly to <br />prevent spills and wnddiern. When necessory, hazardous wastes will be disposed <br />of in the manner specified by bed and /or slate regulation or by the manufacturer. <br />3. Sanitary Waste - All sanitary wrote wit be coll.ted from the portable unfts by a <br />local, licensed water management company, as required by local regulation. <br />4. Waits Vehicle Tracking - A rack construction entrance has been provided to help <br />reduce vehicle tracking of sedbnente The paved street adjacent to the site <br />entrance shall be swept on on as- needed basis. or as determined by the City. <br />Dump trucks hauling loose material. (sand, topsoil. etc.) to and /or from the site <br />shad be covered with a tarpaulin. <br />5. Vehicle Cleaning - No engine degreasing is allowed on-site. Extend washing of <br />vehicles to be confined to a defined area ('bone yard) on -sRn. The bone yard is <br />to be at least 50 feet from any .$lOrm drain inlet and shall drain to a temporary <br />pit of adequate volume to hold all liquid and wrote concrete materials generated <br />during washout operation. Hardened concrete shall be broken up and disposed of <br />as required by local regulation. If necessary. place set fence around bone yard <br />area to ensure no sediments enter any storm water basin or storm sewer inlet <br />16PECIIC318 MD MApI9NAN E PROCEDURES <br />(Mho see 4rpecbtr end M ekdatrn0V tinder VENTRAL ErTOS/0N AND 9 10 CONTROL) <br />The following are the inspection and maintenance practices that 091 be used to <br />maintain erosion and sediment controls <br />• Ad control measures will be Inspected at least once each week and folowbg any <br />storm even of 0.5 inches or greater. <br />• Al measures 011 be maintained in good working order, h a repair is necessary. h <br />MR be initiated within 24 hours or report <br />• Built up sediment Mil be removed frarm sit fence when ft has reached one -third <br />(1/3) the height of the fens <br />• Set fence w® be inspected for depth of sediment tears, to see if the fabric is <br />.curdy attached to the fence posts, and to see that the fence posts are firmly <br />in the grand <br />• Temporary seeding and plantkg will be Inspected for bore mots, washouts, and <br />healthy growth. <br />• A maintenance report ell be mode after each Inspection. <br />M SPITES permit is required for construction. Permit is to <br />remote oo -site at of floes. <br />The Owner and Contractor wall Dosses and be respasmle for <br />implementation of SWPPP, and will be norponabe for erosion <br />contrd measures on -site dotal fowl stobehaten has been <br />achieved and a Notice of Termination (NOT) has been filed <br />with the MPCA The Contractor and Owner shall make <br />available to the City and watershed a Fist of contacts to be <br />notified N repair. and /or maintenance to site erosion control <br />measures are required <br />Contractor to provide designated concrete truck washout area <br />with appropriate signag0 at location shown (or location <br />approved by Engineer). Washout area is to be a minimum of <br />50' from storm trains, ditches pods, or rainwater garden <br />area. Do not allow run-off from this arts by constructing o <br />temporary pit or banned area large enough for liquid and solid <br />west. After waste concrete Is set. break -up and dispose of <br />properly <br />Contractor to provide phased traffic control (In ocoordonce <br />with the 'Minnesota Maraud of Uniform Traffic Control <br />Devices') as neceasoy whenever grading. Litany work, paving <br />operations, and final we restoration encroach wlthb <br />right -of -way or onto adjacent street. <br />Ad BMWs must be maintained with proper function untt all site <br />work has been completed and site has undergone final <br />strain otian. - - <br />Contractor to provide topsoil stockpile at location designated <br />by owner. Stockpile location(s) to be surrounded by sin <br />fence, If stockpile is to be Inploae longer than 72 hours. <br />provide seed and mulch. <br />DRAWN BY: <br />CHCICD BY: <br />C.O.S. <br />DESIGN BY: <br />C.C.S. <br />PROJ. N0. <br />07 -1131 <br />ORIGINAL DATE <br />FEBRUARY 9. 2007 <br />F <br />99 <br />z <br />a <br />z <br />a <br />0 <br />0 <br />a <br />0 <br />es <br />Z <br />O. <br />cc <br />R <br />g <br />ROYAL OAKS <br />REALTY <br />1000 COUNTY RD E,TIES <br />8HOHE91Elf MN 55126 <br />PHONE (651) 483 -5518 <br />A <br /><J <br />818E PLANNING <br />6 ENGINEERING <br />PLOW! <br />ENGINEERING, INC <br />6776 TARE DRIVE <br />SUITE 110 <br />LINO LAKES, MN 5501, <br />PHONE: (651) 361 -821 <br />PAZ (651) 361 -8701 <br />C3 <br />