Coastal Georgia (Chatham County–Savannah region)
Coastal Stormwater Supplement to the Georgia Stormwater Management Manual
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Regional coastal Georgia supplement (facilitated by Chatham County–Savannah MPC), not a City of Savannah ordinance. Jurisdiction level coded as other because the CSS applies across the multi-county Coastal NPS Management Area and Area of Special Interest. Supplements the Georgia Stormwater Management Manual (GSMM); CSS controls on conflict—schema has no 'supplements' enum so relationship_to_state_manual is independent. Pipeline excerpt repair removed 5 unlocated citation(s).
Document Metadata
“Counties included within Georgia's Coastal Nonpoint Source Management Area include: Bryan, Brantley, Camden, Charlton, Chatham, Effingham, Glynn, Liberty, Long, McIntosh and Wayne.”
Section 1.2
“Georgia Coastal Stormwater Supplement April 2009”
Title Page
“First Edition April 2009”
Title Page
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“This monitoring protocol provides information that can be used to evaluate the performance of green infrastructure and stormwater management practices in coastal Georgia. The protocol presents a simple, yet comprehensive monitoring approach that can be used to accurately ev”
p. 493
Design Criteria
“providing 24 hours of extended detention for the stormwater runoff volume generated by the 1-year, 24-hour storm event”
Table 4.5 / SWM Criteria #3
“In coastal Georgia, this equates to reducing the stormwater runoff volume generated by the 1.2 inch rainfall event (and the stormwater runoff generated by the first 1.2 inches of all larger rainfall events).”
Table 4.5 / SWM Criteria #1 Stormwater Runoff Reduction
“modified version of the Graphical Peak Discharge and Storage Volume Estimation Methods presented in Technical Release 55 (TR-55) (NRCS, 1986).”
Section 5.4
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