USGS Water-Year Summary 2025
401308085394101 MADISON 11 (MD 11)
Sand and gravel aquifers (glaciated regions)
Quaternary System
LOCATION - Lat 40°13'08", long 85°39'41" referenced to North American Datum of 1983, Madison County, IN, Hydrologic Unit 05120201,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 128.42 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 870.46 ft above North American Vertical Datum of 1988. Measuring point: FILED TWO NOTCHES ON PVC CASING, 4.79 ft above land-surface datum, Nov. 8, 2019 to present.