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F <br /> e , t '''; Land Conservation Division <br /> > Dane County Land & Water Resources Department <br /> 1839 <br /> ,4CCIS6 Patrick J.Sutter, County Conservationist <br /> DATE: April 22, 2008 <br /> TO: John Pertzborn and Sharon Pertzborn-Jensen <br /> Owners <br /> FROM: Jeremy Balousek, P.E. <br /> Urban Conservation Engineer <br /> RE: Jensen Residence—Erosion Control and Stormwater Management Plan, <br /> ES2008-0047 <br /> The submitted erosion control and stormwater management plan meets the needs of the site. The <br /> plan includes the following requirements: <br /> 1. The site may only be accessed off Carter Road using a stone tracking pad. The pad must <br /> be a minimum of 50' long x 24' wide x 12" deep and be constructed of 3-inch clear stone. <br /> No other site access may be used and material deposited in the road will be cleaned up <br /> • throughout and at the end of each workday. <br /> 2. Silt fence must be installed prior to grading in the locations shown on the plan and where <br /> deemed necessary, including the down slope of all soil stockpiles. The silt fence must be <br /> maintained until the site is vegetated and stabilized. <br /> 3. Stone weepers must be installed in the locations identified in the plan prior to other <br /> grading. Sediment must be removed from the upslope side of the weepers once it reaches <br /> V2 the their height. <br /> 4. Culvert and pipe outfalls will be protected by rock riprap. The riprap will be installed <br /> such that it forms a"bowl" with a depth of at least 12-inches to dissipate runoff energy. <br /> 5. A stormwater basin must be constructed according to the submitted plan prior to other <br /> grading. As the basin will be utilized to remove sediment from runoff during <br /> construction, sediment must be periodically excavated to maintain trapping efficiency. <br /> 6. All channel bottoms identified in the plan must be erosion matted during final site <br /> stabilization. The erosion matting must be WisDOT Class I, Type B or Class II, Type B <br /> matting or better, as specified in the plan. <br /> 7. Grading must be confined to the areas shown on the plan. No material storage, vehicle <br /> traffic or grading may occur in the areas identified as "undisturbed" or"vegetated buffer" <br /> Lyman F.Anderson Agriculture&Conservation Center <br /> 1 Fen Oak Court, Room 208, Madison,Wisconsin 53718-8812-PH: 608/224-3730,FAX:608/224-3745 <br /> www.countyofdane.com/landconservation <br />