Level is the depth or height of water above a reference point (such as the invert of the pipe or the channel bottom), often used with a known relationship to […]
FAQ Category: A Look at the Basics
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Flow rate is the volume of water or wastewater passing a reference point in a specific period of time, typically expressed in liters per second, gallons per minute, or cubic […]
Stormwater runoff is rain or snowmelt that flows over land surfaces, streets, and roofs instead of soaking into the ground, often entering storm drains and sewers.
An SSO is a discharge of raw or partially treated sewage from a separate sanitary sewer system before it reaches the treatment plant, often due to blockages, equipment failure, or […]
A CSO is a discharge of a mixture of stormwater and untreated wastewater that occurs when the capacity of a combined sewer system is exceeded during wet weather.
A sanitary sewer carries only wastewater (sewage) and no stormwater. A storm sewer carries rain and snowmelt runoff, while a combined sewer conveys both sewage and stormwater in the same […]