Sanitary Sewer Overflows (SSOs) | US EPA - U.S. Environmental ...
2024年5月9日 · These types of releases are called sanitary sewer overflows (SSOs). SSOs can contaminate our waters, causing serious water quality problems, and back-up into homes, causing property damage and threatening public health. Possible causes of SSOs include: vandalism.
What are Sanitary Sewer Overflows? A sanitary sewer overflow can spill raw sewage into basements or out of manholes and onto city streets, playgrounds and into streams, before it can reach a treatment facility.
Sanitary Sewer Overflow (SSO) Frequent Questions | US EPA
2024年5月9日 · Sanitary Sewer Overflows (SSOs) are a release of untreated or partially treated sewage from a municipal sanitary sewer. Why do sewers overflow? SSOs occasionally occur in almost every sewer system, even though systems are intended to collect and contain all the sewage that flows into them.
Sanitary sewer overflow - Wikipedia
Sanitary sewer overflow (SSO) is a condition in which untreated sewage is discharged from a sanitary sewer into the environment prior to reaching sewage treatment facilities. When caused by rainfall it is also known as wet weather overflow.
Seattle and King County penalized for sewer overflow violations
2024年12月12日 · Ecology and EPA are penalizing the City of Seattle $50,000 for 20 sanitary sewer overflow events. Sanitary sewer overflows are not allowed by the city’s discharge permit regardless of the type of weather. Several of the events reached Puget Sound, lakes Washington and Union, the Ship Canal, or the Duwamish River.
Enforcement to Address Sewer Overflows | Eliminating Sanitary Sewer ...
2023年7月13日 · These types of discharges are called sanitary sewer overflows (SSOs). SSOs have a variety of causes, including but not limited to severe weather, improper system operation and maintenance, and vandalism. EPA estimates that there are at least 40,000 SSOs each year.
These unplanned discharges generally result from pipe blockages or component failures and when they occur are classified as sanitary sewer overflows (SSOs). When either CSOs or SSOs occur, sewage is released to the environment.
What is a sanitary sewer overflow? - Wastewater Digest
2024年5月8日 · A sanitary sewer overflow is when sanitary sewers release untreated or partially treated sewage into the environment before it reaches sewage treatment facilities. Sanitary sewer overflows are different than combined sewer overflow.
Sanitary sewer overflows (SSOs) are releases of untreated sewage into the environment. They have always been illegal under the Clean Water Act, but EPA's proposed SSO Control Rule will clarify the prohibition and provide a program for helping municipalities track and report activities undertaken to control SSOs.
These types of discharges are called sanitary sewer overflows (SSOs). SSOs may be attributable to blockages in the system or mechanical failure such as a lift station power outage. In addition, SSOs often occur because of excessive “I&I” – infiltration …