General prohibitions

{
  "id": "MLC-T-ENV-012176",
  "term": "General prohibitions",
  "field": "Environment",
  "definition": "Prohibitions that apply to each IU introducing pollutants into a POTW whether or not the IU is subject to other national pretreatment standards or any national, state, or local pretreatment requirements: 1) No IU may introduce into a POTW any pollutant(s) that cause pass through or interference. 2) An IU may have an affirmative defense in any action brought against it alleging a violation of the general or specific prohibitions where the IU can demonstrate that: a) It did not know or have reason to know that its discharge, alone or in conjunction with a discharge or discharges from other sources, would cause pass through or interference; and b) A local limit designed to prevent pass through or interference (or both) was developed for each pollutant in the IU's discharge that caused pass through or interference, and the IU was in compliance with each such local limit directly before and during the pass through or interference; or c) If a local limit designed to prevent pass through or interference or both has not been developed for the pollutant(s) that caused the pass through or interference, the IU's discharge directly before and during the pass through or interference did not change substantially in nature or constituents from the IU's prior discharge activity when the POTW was regularly in compliance with the POTW's NPDES permit requirements and, in the case of interference, applicable requirements for sewage sludge use or disposal.",
  "subject": "Enforcement and compliance",
  "references": [
    "40 CFR 403.5(a)(1)"
  ],
  "url": "https://mlchart.com/terminology/environment/general-prohibitions/"
}