Oct 5, 2023 · These events, called combined sewer overflows, are subject to the National Pollutant Discharge Elimination System (NPDES) permitting program.
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People also ask
What is a combined sewer overflow (CSO)?
The combined flow of wastewater and stormwater can overwhelm the system. Permitted outfalls are located throughout the system to act as relief points during wet weather. These outfalls discharge untreated or partially treated stormwater and wastewater into nearby waterbodies. These discharges are called CSOs.
Oct 5, 2023
What is the major problem with a combined sewer system?
Impact on public health. Discharge from combined sewer overflows can also back up into basements, causing property damage and creating health problems for anyone exposed to untreated sewage and wastewater. CSO discharge can carry bacteria, intestinal worms, protozoa and viruses.
How to fix combined sewer overflow?
There are three general approaches to eliminating CSOs:
1
Sewer Separation: Build a second system of pipes to keep stormwater separate from wastewater. ...
2
Increase Storage Capacity: Store excess combined wastewater during heavy rains and slowly release it to the treatment plant over time.
What does CSO stand for in sewer?
When this occurs, untreated or partially treated combined wastewater discharges from an outfall directly to nearby streams, rivers, and other water bodies. This is called a combined sewer overflow (CSO).
Mar 22, 2024 · Policy Framework. Combined sewer overflows (CSOs) are subject to the National Pollutant Discharge Elimination System (NPDES) permitting program, ...
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Oct 5, 2023 · These outfalls discharge untreated or partially treated stormwater and wastewater into nearby waterbodies. These discharges are called CSOs.
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Dec 16, 2016 · The CSO control policy also defines expectations for regulated communities, state water quality standards (WQS) authorities, and NPDES ...
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Jan 1, 1999 · I am pleased to provide you with the Environmental Protection Agency's (EPA) guidance document on the monitoring and modeling of combined sewer ...
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I am pleased to provide you with the Environmental. Protection. Agency's. (EPA'S) guidance document on the development and implementation of a long-term control.
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Jul 12, 2021 · Built to collect sanitary and industrial wastewater, as well as stormwater runoff, and transport this combined wastewater to treatment ...
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Feb 20, 2024 · This draft Guidance highlights the available approaches for permitting combined sewer overflow (CSO) communities nearing completion of the ...
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