Metals (pollutant category)

{
  "id": "MLC-T-ENV-017075",
  "term": "Metals (pollutant category)",
  "field": "Environment",
  "definitions": [
    "Pollutant grouping that includes all metals parameters. Hexavalent or trivalent metals and metals in ionic form (e.g., hexavalent chromium and aluminum, ion) are included, but metal compounds (e.g., calcium chloride) are not included. Includes metals parameters on the CWA priority pollutant list.",
    "All metals parameters. Hexavalent or trivalent metals and metals in ionic form (e.g., hexavalent chromium and aluminum, ion) are included, but metal compounds (e.g., calcium chloride) are not included. Section 3.3.2 of the Technical Users Background Document for the Water Pollutant Loading Tool (https://echo.epa.gov/trends/loading-tool/resources/technical-support-document) describes how the Loading Tool identifies metals parameters and calculates the total metals load. Search Considerations:The Loading Tool selects pollutant loadings for the Metals category if the loadings are associated with parameter codes in ICIS-NPDES that are on the metals list. This list is available in the Technical Users Background Document for the Water Pollutant Loading Tool (https://echo.epa.gov/trends/loading-tool/resources/technical-support-document)."
  ],
  "subject": [
    "Policy and guidance",
    "Enforcement and compliance"
  ],
  "references": [
    "Effluent Limitations Guidelines (ELG) Glossary",
    "Glossary of Frequent Terms in the Loading Tool"
  ],
  "url": "https://mlchart.com/terminology/environment/metals-pollutant-category/"
}