Monitoring Wells Installed by the U

Monitoring Wells Installed by the U.S. Geological Survey in the Metro East, Illinois area Click here for a general map of all monitoring well locations in Metro East area

Click here for map of sites near Bethalto, Edwardsville/Glen Carbon, Collinsville, or O’Fallon/Belleville

Click USGS Database ID in listing to go to the USGS Ground-Water Site Inventory record of water levels Click Project Well ID in listing to go to the USGS Illinois Water Science Center Annual Data Report for Water Year 2006 [available spring 2007] Click Well ID SIL-20A for near Real-Time Hydrograph for well at Southern Illinois University-Edwardsville

APPROXIMATE LAND SURFACE, WELL SITE NAME PROJECT WELL ID USGS DATABASE ID TOWN COUNTY FEET ABOVE NAVD88

Bethalto Arboretum SIL-19A 385446090015901 Bethalto Madison 525 Sugar Creek Dr SIL-20 384656089582001 Edwardsville Madison 555 SIU-E Korte Stadium SIL-20A 384659090003701 Edwardsville Madison 445 Center Grove Rd SIL-20B 384714089585301 Edwardsville Madison 555 Public Works Garage SIL-21 384546089575801 Glen Carbon Madison 515 Collinsville High School SIL-22 383847090003501 Collinsville St. Clair 445 Splash City SIL-22A 384058090010601 Collinsville Madison 423 Wolf Branch Middle School SIL-23 383321089594601 Swansea St. Clair 595 Whiteside Elementary School SIL-25 383214089571501 nr Belleville St. Clair 545 O'Fallon Public Library SIL-27A 383453089545001 O'Fallon St. Clair 555 Evans Elementary School SIL-27B 383445089535701 O'Fallon St. Clair 535 Olivia Ln SIL-28 384515089591801 Glen Carbon Madison 545 South Station Rd SIL-30 384613089572001 Glen Carbon Madison 550 Worden WDN-1 385735089513901 nr Worden Madison 560 Marine MRN-1 384955089473001 nr Marine Madison 525

DEPTH OF WELL, OPEN INTERVAL, STICK-UP, Datum: NAD83 FEET BELOW FEET BELOW FEET BELOW PROJECT WELL ID LATITUDE LONGITUDE LAND SURFACE LAND SURFACE LAND SURFACE

SIL-19A 385446.1 900158.5 17.0 11.5 - 16.5 0.20 SIL-20 384656.4 895819.6 46.6 41.1 - 46.1 1.95 (above) SIL-20A 384659.0 900036.7 43.5 38.0 - 43.0 0.40 SIL-20B 384714.1 895853.0 43.5 38.0 - 43.0 0.26 SIL-21 384545.8 895758.3 19.3 13.8 - 18.8 0.16 SIL-22 383847.0 900035.2 60.0 53.5 - 58.5 0.31 SIL-22A 384057.8 900105.8 24.1 18.6 - 23.6 0.37 SIL-23 383221.2 895945.9 36.5 31.0 - 36.0 0.23 SIL-25 383213.6 895715.1 38.4 32.9 - 37.9 0.26 SIL-27A 383453.2 895449.7 43.4 37.9 - 42.9 0.12 SIL-27B 383445.2 895357.3 30.9 25.4 - 30.4 0.15 SIL-28 384514.8 895918.5 53.6 48.1 - 53.1 0.30 SIL-30 384613.0 895720.4 24.1 18.6 - 23.6 0.30 WDN-1 385734.6 895138.6 27.9 22.4 - 27.4 2.63 (above) MRN-1 384955.0 894729.7 20.0 14.5 - 19.5 2.33 (above)