OK Water/Wastewater Operator case studies
OK Water/Wastewater Operator · Put your knowledge to work in context.
The Oklahoma Water/Wastewater Operator Certification is administered by the Oklahoma Department of Environmental Quality (DEQ) through its Water Quality Division, which the agency describes as the unit that "regulates public drinking water and wastewater systems, certifies operators, and upholds statewide surface-water quality standards for lakes, rivers, and streams." The credential is for people who operate or intend to operate public drinking water systems and wastewater treatment or collection systems in Oklahoma, and who need state recognition of their competency. DEQ's Water Quality Division organizes its work under four public program areas: Construction Permitting, Operator Certification, Public Water Supply, and Wastewater & Stormwater, with Watershed Planning also listed among its functions. The OK Water/Wastewater Operator case studies are 5 cases and about 2,596 words.
1Distribution Residual Collapse in a Well-Based System
A 3,400-person community draws from two 350-gpm wells and chlorinates with chlorine gas at the wellhouse. Finished water enters a 0.40-MG elevated tank; average demand is 0.45 MGD, so stored water often sits for nearly a day.
449 words, about 2 min2Lagoon TSS and Ammonia Excursion After Storm
A town of 2,100 operates a three-cell facultative lagoon permitted at 0.35 MGD under an Oklahoma OKPDES permit. The lagoon normally holds about 7.5 MG, giving roughly 21 days of detention.
459 words, about 2 min3Subdivision Water Main and Sewer Separation Review
A developer submits plans for a 240-lot subdivision served by a new 8-inch PVC water main 2,300 feet long, connecting to an existing 12-inch main. Static pressure is 62 psi; the fire-flow requirement is 1,000 gpm at 20 psi.
576 words, about 3 min4Watershed Load Allocation with Poultry Litter Application
A 12,000-acre watershed drains to an 18-mile stream that Oklahoma has listed for E. Draft load allocations give point sources 15 percent, grazing 45 percent, wildlife 10 percent, and failing septic systems 30 percent.
568 words, about 3 min5Source Change and Lead Corrosion Control
A 2,200-connection system with 280 known lead goosenecks switches from local groundwater to purchased surface water. Old water: pH 7.3, alkalinity 180 mg/L as CaCO3, hardness 220 mg/L, chloride 20 mg/L, sulfate 40 mg/L.
544 words, about 3 min