GA Water/WW Operator study guide
GA Water/WW Operator · Work through your exam, one topic at a time.
The Georgia Water & Wastewater Operator credential is a state certification administered through the Georgia Environmental Protection Division (EPD) for the people who run and maintain drinking water treatment plants, drinking water distribution systems, wastewater treatment plants, and wastewater collection systems. It is aimed at both entry-level operators preparing for a first certification and experienced operators adding a class, a system type, or a specialty. The exam is multiple choice and is organized around five content areas: drinking water treatment, drinking water distribution, wastewater treatment, wastewater collection, and a shared block covering safety, regulations, and laboratory analysis. Expect process-control reasoning, unit-process math, equipment and maintenance knowledge, monitoring and reporting requirements, and safety practices rather than pure recall. The GA Water/WW Operator study guide has 5 sections and about 1,920 words.
01Drinking Water Treatment
A conventional surface-water plant runs coagulation, flocculation, sedimentation, filtration, and disinfection. Coagulant dose (alum, ferric salt, polymer) is set by jar test, and optimum pH and alkalinity matter because alum consumes alkalinity.
292 words, about 1 min02Drinking Water Distribution
A minimum of 20 psi must be maintained throughout distribution under all conditions, including fire flow; normal operation is roughly 40-80 psi. Pressure, not flow, is the regulatory concern.
296 words, about 1 min03Wastewater Treatment
Preliminary (screens, grit), primary settling, secondary biological treatment, disinfection, then solids handling. Activated sludge control variables are MLSS, F/M, MCRT (sludge age), dissolved oxygen, RAS rate, and sludge volume index.
251 words, about 1 min04Wastewater Collection
Gravity sewers carry flow to lift stations and the plant. Minimum self-cleansing velocity is about 2 ft/s at design flow; maximum is about 10 ft/s to limit scour and hydrogen sulfide.
272 words, about 1 min05Safety, Regulations, and Laboratory Analysis
A confined space has limited entry, is not designed for occupancy, and restricts egress; a permit space adds a hazard. Test the atmosphere before entry and monitor continuously: oxygen 19.5-23.5%, LEL under 10%, hydrogen sulfide under 10 ppm, carbon monoxide under 35 ppm unless the permit says otherwise.
809 words, about 4 min