Public Water System Classification for Community and Non-transient Non-community Systems (1)
System Size | Class I | Class II | Class III | Class IIIG | Class IV |
Surface water with conventional treatment plant | 5.0 MGD or greater | 4.99 MGD or less | n/a | n/a | n/a |
Surface water with package or non-conventional treatment plant | 1.0 MGD or greater | 0.99 MGD or less | n/a | n/a | n/a |
Surface water with approved high-rate filtration | 3.0 gpm/sq.ft. or greater | Less than 3.0 gpm/sq.ft. | n/a | n/a | n/a |
Groundwater under the direct influence of surface water | 1.0 MGD or greater | Greater than 0.1 MGD to 0.99 MGD | 0.1 MGD or less | n/a | n/a |
Groundwater | 50,000 or greater population | 10,000 to 49,999 population | 1,000 to 9,999 population | 1,000 to 9,999 population | 25 to 999 population |
Distribution Systems | Certification is required for the operator of public water distribution systems. |
Note: (1) MGD is million gallons per day; gpm/sq.ft. is gallons per minute per square-foot filter surface area; n/a is not applicable.
Ga. Comp. R. & Regs. R. 391-3-5-.39
O.C.G.A. § 12-5-170 et seq.