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Riverstone SouthEAWDraft December 2020 <br />feet southwest of the project area. Land use within the Mississippi River Corridor Critical Area is <br />discussed under Item 9. <br />Impaired waters listed by the Minnesota Pollution Control Agency (MPCA) and located within 1 <br />mile of the site include only the Mississippi River(07010206-805), which is impaired for aquatic <br />consumption (AQC), aquatic life (AQL), and aquatic recreation (AQR) from theCrow River to <br />Upper St. Anthony Falls. <br />ii.Groundwater aquifers, springs, seeps. Include: 1) depth to groundwater; 2) if project is within a <br />MDH wellhead protection area; 3) identification of any onsite and/or nearby wells, including unique <br />numbers and well logs if available. If there are no wells known on site or nearby, explain the <br />methodology used to determine this. <br />Depth to groundwater varies across the project area.Depth to static groundwater levelsin 41 <br />groundwater wells located near the project area rangedfrom 10 to 50 feet(Table 5andAppendix <br />C).The project area does not fall within aMinnesota Departmentof Health (MDH)wellhead <br />protection area. The nearest Source Water Protection area is theRamsey WestDrinking Water <br />Supply Management Area, located 0.5 mile east of the project area.Although several groundwater <br />wells are located in the general vicinity of the site, the Minnesota County Well Index does not <br />identify any wells located onsite.One unregistered well was found in the southeastern corner of the <br />site during the land survey for the property. The project proponent is determining whether thiswell <br />has been abandoned and will ensure it is abandoned prior to construction as noted under Item <br />11.b.iii. <br />Table 5.Nearby Field Verified Groundwater Wells <br />Depth to <br />Surface Cased Location <br />WellDepth <br />Static <br />Elevation Depth (Direction Aquifer <br />Bedrock <br />No.(feet) <br />Water <br />(feet)(feet)from Site) <br />(feet) <br />Level (feet) <br />50372188222115635118NorthwestSt.Lawrence-Tunnel City <br />43023288333829430116NortheastWonewoc <br />51195286017013428122WestTunnel City <br />48618185814513513-WestQuat. buried <br />227345883757130-NorthwestQuat. buried <br />25606086318613040112WestSt.Lawrence-Tunnel City <br />1143528771761344095NorthwestTunnel City <br />12413786124616120149WestTunnel City <br />71152986315514230-WestQuat. buried <br />51605486419014630145SouthTunnel City <br />13339087519016239138NorthwestTunnel City <br />19377888018615518155NorthwestTunnel City <br />672386849706514-WestQuat. buried <br />12413886224617020151SouthTunnel City <br />242411871178null14149WestTunnel City <br />41668286118613318103NorthwestTunnel City <br />11 <br /> <br />