Construction Storm Water

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Dischargers whose projects disturb one or more acres of soil or whose projects disturb less than one acre but are part of a larger common plan of development that in total disturbs one or more acres, are required to obtain coverage under the General Permit for Storm Water Discharges Associated with Construction and Land Disturbance Activities (Construction Storm Water General Permit) Order Number 2009-0009-DWQ, amended by 2010-0014-DWQ and 2012 -0006-DWQ, NPDES Number CAS000002. Construction activity subject to this permit includes clearing, grading, grubbing, excavation, or any other activity that results in a land disturbance of equal or greater than one acre. Dischargers obtain coverage under the Construction Storm Water General Permit by enrolling through Stormwater Multiple Application and Report Tracking System (SMARTS) and submitting all required Permit Registration Documents.

The Construction Storm Water General Permit requires the development and implementation of a Storm Water Pollution Prevention Plan (SWPPP). The SWPPP must be developed by a Qualified SWPPP Developer (QSD). The SWPPP must meet the following objectives: all pollutants and their sources, including sources of sediment associated with construction, construction site erosion and all other activities associated with construction activity are controlled; all non-storm water discharges are identified and either eliminated, controlled, or treated; site Best Management Practices (BMPs) are effective and result in the reduction or elimination of pollutants in storm water discharges and authorized non-storm water discharges from construction activity to the Best Available Technology Economically Achievable / Best Conventional Pollutant Control Technology (BAT/BCT) standard; Calculations and design details as well as BMP controls for site run-on are complete and correct, and Stabilization BMPs installed to reduce or eliminate pollutants after construction are completed. Section XIV of the Construction Storm Water General Permit describes the elements that must be contained in a SWPPP.

Annual Reports must be submitted by projects that are enrolled under the CGP No. 2009-0009-DWQ for more than one continuous three month period. The Annual Reports will be submitted electronically in SMARTS. Annual Reports are due to the State Water Board on September 1 of each year with a July 1 through June 30 compliance year.

For projects active for longer than a continuous three month period, and construction project completion prior to September 1, an Annual Report will still be required and must be submitted electronically in SMARTS prior to notice of termination (NOT) submittal.

Construction Permit Documents

SMARTS and related Information

Construction Resources