Adoption of the Gwinnett County Stormwater Management Manual and Design Standards
The City has historically referenced the Gwinnett County Stormwater Design Manual in the Development Regulations, as an alternative to the Georgia State Stormwater Management Manual (GSMM aka the Blue Book) in administering stormwater ordinances and providing for stormwater design standards, inspections and post-construction maintenance.
The State stormwater manual was re-written in 2016 and the current Gwinnett manual “Stormwater Systems and Facilities Installation Standards and Specifications (SSFISS)” will be replaced March 1, 2018, by the new manual and separate pipe standards (adopted by BOC in December, 2017). The city must adopt either the State document or the County documents to maintain compliance with State NPDES requirements.
Staff recommends adoption of the 2017 Gwinnett County Stormwater Management Manual and Gwinnett County Storm Sewer Pipe Standards, as may be revised or amended from time to time. Upon adoption, staff will identify references within the city code and provide text amendments for council approval to achieve implementation.