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Hydrology/Water_Quality_Impaired_Waters_TMDL_2016 (MapServer)

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Service Description: Impaired Waters - TMDL (IDEM, 2016) - Shows impaired waterbodies in Indiana from 2016 that have Total Maximum Daily Load (TMDL) reports approved by the U.S. EPA. Attributes include regulatory identification numbers (IDEM), Hydrologic Unit Code (HUC) IDs, stream segment names, and TMDL Document identification numbers arranged by impairment type (Bacteria/E. coli, Ammonia, Dissolved Oxygen, Impaired Biotic Communities, Nutrients, pH, and Siltation). Provided by personnel of the Indiana Department of Environmental Management (IDEM), Office of Water Quality on October 19, 2018. The following is excerpted from IDEM, OWQ documentation: "The Indiana Total Maximum Daily Load (TMDL)-approved Impaired Waters layer reported in 2016 as part of the Indiana Integrated Water Monitoring and Assessment Report, includes the rivers, streams, and tributaries that, once the TMDL is implememnted in each waterbody, will meet water quality standards for 1 or more monitored indicators. At this point the listed assessment use will also be updated to supporting one or more uses not previously supporting that use." "This layer is a subset of the statewide high-resolution National Hydrography Dataset (NHD) of streams that have been updated with Assessment Unit Identifiers (AUIDs) to correspond to the assessments based on waterbody characteristics, water chemistry, and biological parameters, e.i., habitat conditions, the health and diversity of fish and macroinvertebrate communties, plus fish tissue evaluations. The NHD has been further edited using the HEM tool for segment records to coinside with impairment extent." For more information about the TMDL Reports, please visit the following IDEM Web site: ( ) For more information about the Water Quality Assessments and Reporting, please visit the following IDEM Web site: ( ) For more information about the Section 303(D) List Of Impaired Waters, please visit the following IDEM Web site: ( ) For more information about the IDEM OWQ "Online E303d Tool": ( )

Map Name: Layers


All Layers and Tables

Layers: Description:

Copyright Text: Indiana Department of Environmental Mangement, U.S. Environmental Protection Agency

Spatial Reference: 26916  (26916)

Single Fused Map Cache: true

Tile Info: Initial Extent: Full Extent: Units: esriMeters


Document Info: Supports Dynamic Layers: false

MaxRecordCount: 100

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

Supports Query Data Elements:

Min Scale: 2500000

Max Scale: 1000

Supports Datum Transformation: true

Child Resources:   Info

Supported Operations:   Export Map   Identify   QueryLegends   QueryDomains   Find   Return Updates   Generate KML