What does an MS4 permit do?
What does an MS4 permit do?
MS4 permits authorize cities, counties, or other governmental entities to discharge storm- water collected by their storm sewer systems to waters of the United States.
What is MS4 compliance?
The NPDES MS4 permit requires, permittees to develop and implement a comprehensive Storm Water Management Program (SWMP) that must include pollution prevention measures, treatment or removal techniques, monitoring, use of legal authority, and other appropriate measures to control the quality of storm water discharged …
What is a MS4 entity?
An MS4 is a conveyance or system of conveyances that is: owned by a state, city, town, village, or other public entity that discharges to waters of the U.S., designed or used to collect or convey stormwater (e.g., storm drains, pipes, ditches), not a combined sewer, and.
Why is it called MS4?
MS4 is short for, “Municipal Separate Storm Sewer System”, where the word “Municipal” refers to a unit of local government like a borough or a township, but may also refer to an organization responsible for the administration of a developed area.
What is a stormwater discharge?
What are stormwater discharges? Storm water discharges are generated by runoff from land and impervious areas such as paved streets, parking lots, and building rooftops during rainfall and snow events that often contain pollutants in quantities that could adversely affect water quality.
What is an illicit discharge?
Illicit discharges are defined as a storm drain that has measurable flow during dry weather containing pollutants and/or pathogens. discharge to an MS4 that is not composed entirely of storm water, except allowable discharges pursuant to an NPDES permit, including those resulting from fire fighting activities.
What is storm water easement?
The Easement enshrines the rights of the land owner to enter the adjoining land as required for the purpose of draining the stormwater. This may be demonstrated by a council Development Consent which has a condition that the stormwater drainage be built.
What are MS4 permits in Los Angeles?
Storm Water – Municipal Permits The Los Angeles Water Board regulates discharges from medium and large municipal separate storm sewer systems (MS4s) through the Los Angeles County, Long Beach, and Ventura County MS4 Permits. These permits are issued under the National Pollutant Discharge Elimination System (NPDES) Program
How does the Los Angeles Water Board regulate sewage discharge?
The Los Angeles Water Board regulates discharges from medium and large municipal separate storm sewer systems (MS4s) through the Los Angeles County, Long Beach, and Ventura County MS4 Permits. These permits are issued under the National Pollutant Discharge Elimination System (NPDES) Program
What is a WMP in Los Angeles County?
Watershed Management Programs The Los Angeles County MS4 Permit allows Permittees the flexibility to develop Watershed Management Programs (WMPs) or Enhanced Watershed Programs (EWMPs) to implement the requirements of the Permit on a watershed scale through customized strategies, control measures, and best management practices (BMPs).