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NDGISHUB_Assessed_Category_Streams (FeatureServer)

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Service Description: This dataset was created as part of the North Dakota Department of Environmental Quality-Surface Water Quality Data Portal that allows for public access to surface water quality monitoring data. This dataset contains the streams and rivers that have been assessed and categorized by North Dakota Department of Environmental Quality - Water Quality (NDDEQ-WQ) for the 2020-2022 Integrated Reporting cycle. The Integrated Report is pending approval from the US EPA. The streams and rivers are a subset of the 1:100,000 scale National Hydrography Dataset (NHD). Since the streams and rivers are a subset of the NHD dataset, only that subset is included in this dataset. (Category of Entity ID 10110203025S00 updated 10/2023)

Service ItemId: 28dbf965f5ea4035852117ac77f12b82

Has Versioned Data: false

Max Record Count: 2000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

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Description:

North Dakota Department Environmental Quality scientists report on the quality of the surface waters in the state every other year in the even numbered years. The results of the assessment is the Section 305(b) and 303(d) listed impaired waters. For more information, please visit the NDDEQ Division of Water Quality - Watershed Management Program's website.

What is an Assessed Category stream or lake? The Clean Water Act (CWA) contains several sections which require states to report on the quality of their waters. Section 305(b) (State Water Quality Assessment Report) requires a comprehensive biennial report, and Section 303(d) requires a list of a state's water quality-limited waters needing total maximum daily loads (TMDLs) by April 1 of every even-numbered year. EPA suggests that states combine these two reports into one integrated report.

What is a TMDL? Total Maximum Daily Load (TMDL) is the amount of a particular pollutant that a particular stream, lake, estuary or other water body can "handle" without violating state water quality standards.

What's the big deal? Once a TMDL is established, responsibility for reducing pollution among both point sources (ex. pipes) and diffuse sources is assigned. Diffuse sources include, but are not limited to, run-off (urban, agricultural, forestry, etc.), leaking underground storage tanks, unconfined aquifers, septic systems, stream channel alteration and damage to a riparian area.



Copyright Text: North Dakota Department of Environmental Quality- Division of Water Quality Surface Water Quality Management Program; U.S. Geological Survey - 1:100,000-scale NHD

Spatial Reference: 26914 (26914)

Initial Extent:
Full Extent:
Units: esriMeters

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates   Create Replica