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~, <br />RAMSEY CONSERVATION DISTRICT <br />1425 Paul Kirkwold Drive <br />Arden Hills, MN 55125 <br />June 23, 2004 <br />Ms. Karen Eckman, Chair <br />Grass Lake Watershed Management Organization <br />c/o Mr. Duane Schwartz, Director of Public Works <br />Roseville City Hall <br />2660 Civic Center Dr. <br />Roseville, MN 55113 <br />Re: Proposal -Sampling Monitoring Wells-Woodbridge Neighborhood (Shoreview) Porous <br />Pavement Project <br />Dear Karen: <br />Ramsey Conservation District {RCD) requests that the Grass Lake Watershed Management <br />Organization's Board of Commissioners consider funding the groundwater monitoring of <br />monitoring wells in the Woodbridge Neighborhood. RCD's involvement in this project began <br />when the City of Shoreview requested our advice on methods to infiltrate stormwater in an area <br />near an Emergency Management Zone {representing a 1-year travel time for groundwater) for a <br />well. The well is owned by the St. Paul Regional Water Services. <br />On May 31 and June 1, the City of Shoreview installed three monitoring wells and a <br />groundwater elevation piezometer to track any impacts to groundwater resulting from the new <br />stormwater infiltration system. RCD was on-site both days to supervise the well installation. <br />Documenting any impacts resulting from new stormwater infiltration practices so close to a <br />water supply well is necessary to protect vital drinking water sources. It is critical. that <br />stormurater infiltration decisions in or near municipal wells are made on the basis of sound <br />science. Without this monitoring effort, stormwater inf ]tratioti systems could inadvertently <br />impact groundwater quality and drinking water consumers could be affected. <br />Porous pavement is a relatively new technology and the City wanted to take all due care with <br />groundwater quality in the area. RCD has participated with the City of Shoreview and the <br />Minnesota Department of Health (MDH) in planning for monitoring of groundwater quality and <br />water table elevation in the vicinity of this road project. <br />X:\Groundwater\Shoreview\WOOdbridge-Lk Owasso-Monit Wells-ptiures\Proposal-Grass take WMO.1Noodbridge M1h~ Sampling.docx <br />