NY Water/Wastewater Operator case studies
NY Water/Wastewater Operator · Put your knowledge to work in context.
Water and wastewater operators in New York work at the intersection of two state agencies. The New York State Department of Health (NYSDOH) lists a Drinking Water Protection Program among its current issues and information, and the Department of Environmental Conservation (NYSDEC) organizes its environmental protection work under a Water heading covering waterbodies and water quality. The NY Water/Wastewater Operator case studies are 5 cases and about 4,260 words.
1Filter 2 Turbidity Breakthrough on the Night Shift
Chartwell is a 6.0 MGD conventional surface-water plant: alum coagulation, flocculation, sedimentation, six dual-media filters, free chlorination and a 240,000-gallon clearwell. The combined filter effluent (CFE) must stay at or below 0.3 NTU in at least 95% of monthly measurements and never exceed 1.0 NTU; individual filters are held to 1.0 NTU.
823 words, about 4 min2Nitrification in a Chloraminated Dead-End Main
Riverton's 4.5 MGD plant feeds chloramines with a target of 2.0 mg/L total chlorine and 0.05 mg/L free ammonia at the plant effluent, at a chlorine-to-ammonia-nitrogen weight ratio of about 4.5:1. The distribution system includes a 12-inch dead-end main serving an industrial park 3.2 miles from the plant; it is not looped and the only blow-off is at the end of the line.
865 words, about 4 min3Wet Weather Overflow at Lift Station 6
Kessler Heights is a 1.2 MGD extended-aeration plant serving 4,100 connections, with 14 lift stations. Rain began at 22:00 and 2.4 inches fell in six hours.
901 words, about 5 min4E. coli Positive Routine Sample at a Small Groundwater System
Millbrook is a 0.55 MGD community groundwater system under the influence of surface water, serving 2,100 people, with free chlorination and two routine coliform samples required per month. On a Tuesday morning a routine sample is collected at 214 Maple Street, a 4-inch dead-end main with a free chlorine residual of 0.2 mg/L.
973 words, about 5 min5Clarifier Failure, Permit Exceedance, and a Confined Space
Northgate is a 0.9 MGD activated sludge plant with UV disinfection. Its SPDES permit sets monthly average limits of 30 mg/L TSS and 5.0 mg/L ammonia for April 1 through October 31.
698 words, about 3 min