Description: Pipe Locations - National Pollutant Discharge Elimination System, 20181019 - Shows 5,027 outfall/discharge locations from permitted-wastewater facilities in Indiana that are overseen by IDEM through the National Pollutant Discharge Elimination System (NPDES) Permitting Program. Attributes include facility name, NPDES permit status and information, identification numbers (IDEM), state water bodies affected, and general comments. Data are current as of October 19, 2018.
NOTE: NPDES_PIPE_IDEM_IN.SHP contains many attribute records that do not contain location and coordinate system information.There are a total of 5,027 attribute records provided in this data layer. Of those, a total of 4,492 records contain locational information and are displayed in a spatial map view. The remaining 535 records have been retained in the attribute table to aid users of these data in performing environmental accessments in the state of Indiana.
The following is excerpted from the metadata provided by IDEM, OWQ:
"The purpose of the NPDES permit is to control the point source discharge of pollutants into the waters of the State such that the quality of the water of the State is maintained in accordance with the standards contained in 327 IAC 2. The NPDES permit requirements must ensure that, at a minimum, any new or existing point source must comply with technology-based treatment requirements that are contained in 327 IAC 5-5-2. According to 327 IAC 5-2-2, 'Any discharge of pollutants into waters of the State as a point source discharge, except for exclusions made in 327 IAC 5-2-4, is prohibited unless in conformity with a valid NPDES permit obtained prior to discharge.' This is the most basic principal of the NPDES permit program."
For more information about the NPDES Program, please visit the following IDEM Web site: https://www.in.gov/idem/cleanwater/2429.htm