pf_03283 - Laserfiche WebLink

Home

03/07/01 WED 11:31 FAX 612 296 7782 METRO MANAGERS OFFICE @001 l '(~.~'I~Y}(~'" .. i~\~:j.,1;:lfi!;~i~&\~ ...:1::t.1/":". )'. ..... u......'J!;.J,........ ;;JJ !;;.! C! Mit:1nesota Pollution Control Agency -- - - - -- --::or- March 7, 2001 Mr. Dennis Welsh Community Development Director City ofRoseville 2660 Civic Center Drive Roseville, MN 55113 Post.lt'" brand fax transmittal memo 7671 To Fad' 5/-.. t.f 't O-"J.:L. (p Fax/l Dear Mr. Welsh: RE: Centre Pointe Business Park Environmental Assessment Worksheet (EA W) I' The Minnesota Pollution Control Agency (MPCA) has completed its review of the above-referenced p~oject in the city ofRoseville. The proposed project is a modification of an existing 15.6-acre business park development in the city ofRoseville. Relative to those areas, for which the MPCA has regulatory interest, the staff does not believe that an Environmental Impact Statement is required for the project. We have the following specific comments: Water Quality - Wastewaters: It is stated in the EA W that the sewer extension permit is granted, and . further stated that the flows will increase and the City ofRoseville is evaluating whether sewer capacity is an issue. If there is a change in the design, the City should submit new plans and specifications and a new application for a revised permit. Your contact for this pennit is Don Perwien at (651) 296-7762. Water Quality - Storm Waters: It is stated in Item 18a of the EA W that infiltration will be used at the site and that "these infiltration areas will capture stonn-water runoff from the surface parking allowing for the runoff to infiltrate into the ground and sediments to be collected in the infiltration areas". Accepted Best Management Practices for infiltration areas call for sediment and grit removal prior to the infiltration area so that the system will not plug and will continue to work as designed. Sediment.collection devices or grit chambers with Htter and debris removal should be incorporated into the drainage system prior to .discharge into infiltration areas. According to Item 18a and 18b of the EA W, storm-water drainage ftom the site will be directed to a regional storm-water pond that was constructed in 1986. The National Pollutant Discharge Elimination System (NPDES) General Stonnwater Permit for Com~truction Activity (permit) has specific discharge requirements for the required wet-detention basins. Regional basins are allowed to be used if they meet the minimum required trea~ent in the NPDES Permit. The Regional basin will need to be evaluated to see ifitmeets the requirements of the NPDES Permit. This evaluation will need to be submitted along with application for the permit. If the regional pond does not meet the requirements for settling velocity in the permit, the pond will need to be modified to come into compliance with cUITent regulations. For more information on NPDES requirements;contact Mike Findorffat (651) 296.6798. Traffic, Air Quality, and Indirect Source Permit (ISP) Requirements: It is clearly stated in the EA W that a modified ISP would be needed for the proposed addition. A modified ISP application with more comprehensive traffic and air quality analyses has already been submitted and is being processed at this time. 520 Lafayette Rd. N.; St. Paul, MN 55155-4194; (651) 296.6300 (Voice); (651) 292-5332 (TIY) , St. Paul . Brainerd . Detroit Lakes . Duluth . Mankato · Marshall . Rochester · Willmar; www.pca.state.mn.us Equal ORl!Prtunjly Employer . Printed on recycled paper containing at least 20% fibers from paper recycled by consumers.