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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 .
Following flooding events, wastewater discharges, also known as sanitary sewer overflows, are common, especially here in Western North Carolina. The North Carolina Department of Environmental ...
Sanitary sewer overflows. While most MetroWest communities do not have combined sewer systems, there’s a similar issue that bodies of water in the area face: sanitary sewer overflows, or SSOs.
Stoneware sanitary sewer (bottom) submerged in trash and fecalia. Sanitary sewer overflow can occur due to blocked or broken sewer lines, infiltration of excessive stormwater or malfunction of pumps. In these cases untreated sewage is discharged from a sanitary sewer into the environment prior to reaching sewage treatment facilities. To avoid ...
CSOs differ from sanitary sewer overflows in that the latter are caused by sewer system obstructions, damage, or flows in excess of sewer capacity (rather than treatment plant capacity.) [2]: Ch.4 Sanitary sewer overflows may occur at any low spot in the sewer system rather than at the CSO relief structures. Absence of a diversion outfall often ...
According to the sewer commission's calculations, the city's sewer separation works in 2021 cost an average of $340,000 per acre. Around 88 acres of work were done that year—translating into a ...
Sewer solids deposition during low flow periods and subsequent resuspension during peak flow events is the major pollutant source for the first-flush combined-sewer overflow (CSO) phenomenon. [6] Sanitary sewage solids can either go through the system or settle out in laminar flow portions of the sewer to be available for washout during peak ...
The overflow occurred about 4:30 p.m. Tuesday, according to a press release from the city. The city website defines a sanitary sewer overflow as "an unintentional overflow, ...