CSO

{
  "id": "MLC-T-ENV-007033",
  "term": "CSO",
  "field": "Environment",
  "definition": "A combined sewer overflow (CSO) refers to a discharge of untreated wastewater from a combined sewer system at a point prior to the headworks of the publicly-owned treatment works. (59 FR 18688) CSOs generally occur in response to wet weather events. Most combined sewer systems are designed to discharge excess flow directly to surface water bodies, such as streams, rivers, estuaries, and coastal waters.",
  "subject": "Water",
  "references": [
    "How's My Waterway Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/cso/"
}