Datasets > Pennsylvania > 2020-present

Total Maximum Daily Load (TMDL) {2024}

Pennsylvania Department of Environmental Protection · 2024 Full Details

Full Details

Title
Total Maximum Daily Load (TMDL) {2024}
Description
The Clean Water Act Section 303(d) establishes the Total Maximum Daily Load (TMDL) program. The purpose of the TMDL program is to identify sources of pollution and allocate pollutant loads in places where water quality goals are not being achieved. This layer shows the list of waters for which technology-based or other required pollution controls are not stringent enough to meet water quality standards. The TMDLs themselves specify a pollutant budget that must be achieved to meet state water quality standards and allocates pollutant loads among pollution sources in a watershed, e.g., point and nonpoint sources. TMDLs can be developed for several categories such as: point sources (permitted sewage and industrial discharges); nonpoint sources (agriculture and urban runoff); lakes; abandoned mine drainage (also called acid mine drainage or AMD); specific bioaccumulative chemicals (PCBs and chlordane that contaminate fish, resulting in fish advisories limiting or banning the number of fish that a person can safely consume); and complex situations (combinations of different types). This layer is based on the High Resolution National Hydrography Dataset (NHD). The Lake TMDLs are not included in this layer.
Creator
Pennsylvania Department of Environmental Protection
Date Issued
2024
Access Rights
Public
Format
File
Language
English
Date Added
February 22, 2023

Location

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Cite and Reference

  • Citation
    Pennsylvania Department of Environmental Protection (2024). Total Maximum Daily Load (TMDL) {2024}. . https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=1130 (dataset)
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