This data set provides information about wells in the State of Missouri. The parent data set is the Wellhead Information Management System (WIMS) database that is maintained by the Missouri Department of Natural Resources (DNR), Missouri Geological Survey (MGS), Geological Survey Program (GSP), Wellhead Protection Section (WHP). The WIMS database resulted from implementation of the Water Well Drillers Law of 1985. The information about well location, well ownership, well completion date, well construction, well yield, static water level, and borehole stratigraphy was provided by well drillers as required by state statute RSMo 256.600-256.640. Wells drilled prior to July of 1987 are not included in this data set. A WIMS Well Search is also available online at http://dnr.mo.gov/mowells/publicLanding.do

These data were formally named MO_2015_Wells_shp.zip which have been removed from MSDIS at MO Office of Administration request.

This data set contains those Missouri waters which have been assessed as impaired in 2016, including waters on Missouri's EPA Approved 2016 Section 303(d) List, but also including waters not on that list, such as waters which have a Total Maximum Daily Load (TMDL) or other appropriate management plan in place, or waters which are not impaired by a discrete pollutant. Missouri's EPA Approved 2016 303(d) List has received approval from the Environmental Protection Agency (EPA). The data set contains the names of impaired waters, their unique identification numbers and locations, and identifies specific pollutants and pollutant sources if they are known. This data set is created in conjunction with the Missouri Water Quality Report, which is produced biennially as required by Section 305(b) of the Federal Clean Water Act, and correlates to Tables 14-15 of that report.

These data were formally named: MO_2014_Section_305b_Water_Quality_Report_Complete_Listing_of_Impaired_Lakes_shp.zip and MO_2014_Section_305b_Water_Quality_Report_Complete_Listing_of_Impaired_Rivers_and_Streams_shp.zip which have been removed from MSDIS at MO Office of Administration request.