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<br />The required treatment volume is determined by the Watershed Dis <br />area. The estimated treatment volumes required based on assumed <br />Zoning scenario and Maximum Build scenarios are 42 acre-feet and 43 acre-feet, respectively. The <br />primary method of treatment will be the use of multiple ponds fo <br />total suspended solids. Water reuse, bio-filtration, filtration, <br />for treatment within the AUAR study area. <br />The northwest portion of the AUAR study area located north of Ri <br />with highly permeable soils and is well-suited for infiltration <br />feasible in some areas located south of Rice Creek, depending on <br />remediation achieved. Rice Creek Watershed District considers infiltration infeasible <br />per Table C2 of the District rules. Given the site <br />history, the use of infiltration practices should be used on a cby-case basis in areas where <br />geotechnical and environmental testing indicates that soil conta <br />Stormwater will be conveyed to Round Lake and Rice Creek by mean <br />vegetated swales, and wetlands. Conveyance systems will be desig <br />industry standards and in conformance with jurisdictional requir <br />iii.W-D <br /> <br />ATER APPROPRIATION ESCRIBE IF THE PROJECT PROPOSES TO APPROPRIATE SURFACE OR <br />().D,,, <br />GROUNDWATER INCLUDING DEWATERING ESCRIBE THE SOURCE QUANTITY DURATION USE AND <br />DNR.D <br />PURPOSE OF THE WATER USE AND IF A WATER APPROPRIATION PERMIT IS REQUIRED ESCRIBE <br />.I, <br />ANY WELL ABANDONMENT F CONNECTING TO AN EXISTING MUNICIPAL WATER SUPPLY IDENTIFY THE <br />,, <br />WELLS TO BE USED AS A WATER SOURCE AND ANY EFFECTS ON OR REQUIRED EXPANSION OF <br />.D <br />MUNICIPAL WATER INFRASTRUCTURE ISCUSS ENVIRONMENTAL EFFECTS FROM WATER <br />, <br />APPROPRIATION INCLUDING AN ASSESSMENT OF THE WATER RESOURCES AVAILABLE FOR <br />.I,, <br />APPROPRIATION DENTIFY ANY MEASURES TO AVOID MINIMIZE OR MITIGATE ENVIRONMENTAL EFFECTS <br />. <br /> <br />FROM THE WATER APPROPRIATION <br />Temporary dewatering may be required during project construction <br />constructed with lower levels, for which caissons could be used <br />foundations. All water pumped during construction dewatering activities wil <br />compliance with City, Watershed, and Minnesota Department of Nat <br />requirements and the National Pollutant Discharge Elimination Sy <br />with approved Response Action Plans, as necessary. No discharge <br />waters without prior retention in a temporary settling basin and <br />exists. The developer will determine if groundwater is contamina <br />discharge to storm sewer, sanitary sewer, or through a treatment <br />groundwater treatment facilities. Temporary construction dewatering will require a Temporary Water <br />Appropriations General Permit 1997-0005 if less than 50 million g <br />in duration. <br />iv. SW <br />URFACE ATERS <br />a) W-D <br />ETLANDS ESCRIBE ANY ANTICIPATED PHYSICAL EFFECTS OR ALTERATIONS TO WETLA <br />,,, <br />FEATURES SUCH AS DRAINING FILLING PERMANENT INUNDATION DREDGING AND VEGETATIVE <br />.D <br />REMOVAL ISCUSS DIRECT AND INDIRECT ENVIRONMENTAL EFFECTS FROM PHYSICAL <br />, <br />MODIFICATION OF WETLANDS INCLUDING THE ANTICIPATED EFFECTS THAT ANY PROPOSED <br />.I(.., <br />WETLAND ALTERATIONS MAY HAVE TO THE HOST WATERSHED DENTIFY MEASURES TO AVOID EG <br /> <br /> <br />April 2014 Draft 13 <br />