Wastewater

{
  "id": "MLC-T-ENV-029993",
  "term": "Wastewater",
  "field": "Environment",
  "definition": "1. The spent or used water from a home, community, farm, or industry that contains dissolved or suspended matter.\n\n2. Wastewater is spent or used water from an individual home, a community, a farm, or an industry that contains dissolved or suspended matter.\n\n3. Usually refers to effluent from a sewage treatment plant. See also domestic wastewater.\n\n4. The used water and solids from a community (including used water from industrial processes) that flow to a treatment plant. Storm water, surface water, and ground-water infiltration also may be included in the wastewater that enters a wastewater treatment plant. The term, sewage usually refers to household wastes, but this word is being replaced by the term, wastewater.\n\n5. Water that has been used in homes, industries and businesses that is not reuseable unless treated by a wastewater facility.\n\n6. Wastes that contain less than 1% by weight total organic carbon (TOC) and less than 1% by weight total suspended solids (TSS).\n\n7. Water that has been used and contains dissolved or suspended waste materials.\n\n8. Flowback and produced water, where flowback is the fluid returned to the surface after hydraulic fracturing has occurred but before the well is placed into production, and produced water is the fluid returned to the surface after the well has been placed into production.\n\n9. Water that has been used and contains dissolved or suspended waste materials. See sewage treatment.\n\n10. Water that has been used in homes, industries, and businesses that is not for reuse unless it is treated.\n\n11. Either a process wastewater or a maintenance wastewater and means water that:(1) Contains either:(i) An annual average concentration of Table 9 compounds (as defined under this subpart) of at least 5 parts per million by weight at the point of determination and has an annual average flow rate of 0.02 liter per minute or greater, or(ii) An annual average concentration of Table 9 compounds (as defined under this subpart) of at least 10,000 parts per million by weight at the point of determination at any flow rate, and that(2) Is discarded from a process unit, whose primary product is a product produced by a source category subject to this subpart.\n\n12. Either a process wastewater or maintenance wastewater and means water that:(1) Contains either:(i) An annual average concentration of organic HAP, as indicated on Table 2 of this subpart, of at least 5 parts per million by weight and has an annual average flow rate of 0.02 liter per minute or greater; or(ii) An annual average concentration of organic HAP, as indicated on Table 2 of this subpart, of at least 10,000 parts per million by weight at any flow rate.(2) Is discarded from an APPU that is part of an affected source.(3) Does not include:(i) Stormwater from segregated sewers;(ii) Water from fire-fighting and deluge systems in segregated sewers;(iii) Spills;(iv) Water from safety showers;(v) Water from testing of deluge systems; and(vi) Water from testing of firefighting systems.\n\n13. Any portion of an individual wastewater stream or any aggregation of wastewater streams.\n\n14. Water that meets either of the conditions described in paragraph (1) or (2) of this definition and is discarded from a PAI process unit that is at an affected source:(1) Is generated from a PAI process or a scrubber used to control emissions from a PAI process and contains either:(i) An annual average concentration of compounds in Table 9 of subpart G of this part of at least 5 ppmw and has an average flow rate of 0.02 L/min or greater; or(ii) An annual average concentration of compounds in Table 9 of subpart G of this part of at least 10,000 ppmw at any flow rate; (2) Is generated from a PAI process unit as a result of maintenance activities and contains at least 5.3 Mg of compounds listed in Table 9 of subpart G of this part per individual discharge event.\n\n15. Process wastewater and maintenance wastewater. The following are not considered wastewater for the purposes of this subpart:(1) Stormwater from segregated sewers;(2) Water from fire-fighting and deluge systems, including testing of such systems;(3) Spills;(4) Water from safety showers;(5) Samples of a size not greater than reasonably necessary for the method of analysis that is used;(6) Equipment leaks; (7) Wastewater drips from procedures such as disconnecting hoses after cleaning lines; and(8) Noncontact cooling water.\n\n16. Water that is generated in a coating operation and is collected, stored, or treated prior to being discarded or discharged. [40 CFR 63.3561 (CFR 2013)] [40 CFR 63.4181 (CFR 2013)]Aqueous liquid waste streams exiting equipment at an affected source.\n\n17. Water that:(1) Contains either(i) An annual average concentration of organic HAP listed in Table 4 of this subpart of at least 5 parts per million by weight and has an annual average flow rate of 0.02 liter per minute or greater, or(ii) An annual average concentration of organic HAP listed on Table 4 of this subpart of at least 10,000 parts per million by weight at any flow rate; and that (2) Is discarded from a PMPU that is part of an affected source. Wastewater is process wastewater or maintenance wastewater.\n\n18. Water that:(1) Contains either:(i) An annual average concentration of organic HAP listed on Table 6 of this subpart, except for ethylene glycol, of at least 5 parts per million by weight and has an annual average flow rate of 0.02 liter per minute or greater; or(ii) An annual average concentration of organic HAP listed on Table 6 of this subpart, except for ethylene glycol, of at least 10,000 parts per million by weight at any flow rate; and(2) Is discarded from a TPPU that is part of an affected source. Wastewater is process wastewater or maintenance wastewater.\n\n19. Water that is discarded from an MCPU or control device through a POD and that contains either: an annual average concentration of compounds in tables 8 and 9 to this subpart of at least 5 ppmw and has an annual average flowrate of 0.02 liters per minute or greater; or an annual average concentration of compounds in tables 8 and 9 to this subpart of at least 10,000 ppmw at any flowrate. Wastewater means process wastewater or maintenance wastewater. The following are not considered wastewater for the purposes of this subpart:(1) Stormwater from segregated sewers;(2) Water from fire-fighting and deluge systems, including testing of such systems;(3) Spills;(4) Water from safety showers;(5) Samples of a size not greater than reasonably necessary for the method of analysis that is used;(6) Equipment leaks;(7) Wastewater drips from procedures such as disconnecting hoses after cleaning lines; and(8) Noncontact cooling water. Wastewater stream means a stream that contains only wastewater as defined in this paragraph (i).\n\n20. Water that has been used in homes, industries and businesses that is not for reuse unless treated by a wastewater facility.\n\n21. Water that: Contains either: An annual average concentration of organic HAP listed in Table 5 of this subpart of at least 5 parts per million by weight and has an annual average flow rate of 0.02 liter per minute or greater; or An annual average concentration of organic HAP listed on Table 5 of this subpart of at least 10,000 parts per million by weight at any flow rate; and Is discarded from an EPPU that is part of an affected source. Wastewater is process wastewater or maintenance wastewater.\n\n22. Water carrying wastes from homes, businesses and industries that is a mixture of water and dissolved or suspended solids.",
  "abbreviation": "WW",
  "subject": "Water",
  "references": [
    "Terms of Env; Terms of Environment",
    "Waste and Cleanup Risk Assessment Glossary",
    "Sediment Total Maximum Daily Loads (TMDLs) Glossary",
    "Drinking Water Technical & Legal Terms; Drinking Water Technical and Legal Terms",
    "Chesapeake Bay Glossary",
    "Land Disposal Restrictions Glossary; 40 CFR 268.2 (CFR 2013)",
    "Glossary of Climate Change Terms",
    "Glossary: Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources",
    "Greenhouse Gas Emissions",
    "USGS Water Science Glossary of Terms",
    "40 CFR 63.1101 (CFR 2013)",
    "40 CFR 63.1402 (CFR 2013)",
    "40 CFR 63.1251 (CFR 2013)",
    "40 CFR 63.1361 (CFR 2013)",
    "40 CFR 63.12005 (CFR 2013)",
    "40 CFR 63.522 (CFR 2018)",
    "40 CFR 63.1423 (CFR 2013)",
    "40 CFR 63.1312 (CFR 2013)",
    "40 CFR 63.2550 (CFR 2013)",
    "40 CFR 63.482 (CFR 2018)",
    "DWMAPS Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/wastewater/"
}