Water Quality Fundamentals & Indicators
Learn water-quality fundamentals and the physical, chemical, and biological indicators operators use to evaluate source water, treatment performance, finished water, and changing process conditions.
Water Quality
6 articles
Articles
Source Water Quality
Learn how source-water quality varies in surface water and groundwater, including turbidity, organic matter, minerals, microorganisms, seasonal changes, storms, source blending, and treatment impacts.
Drinking Water Microbiological Quality
Learn drinking-water microbiological quality, including indicator organisms, treatment barriers, turbidity, disinfectant residual, sampling quality, distribution-system integrity, and troubleshooting abnormal results.
Distribution System Water Quality
Learn distribution-system water quality, including water age, disinfectant residual, storage turnover, sediment, iron and manganese, pressure events, flushing, main breaks, complaints, and troubleshooting.
Wastewater Influent & Effluent Quality
Learn how to evaluate wastewater influent and effluent quality using flow, BOD, COD, TSS, nutrients, pH, alkalinity, loading, removal efficiency, trends, and process-response data.
Water Quality Troubleshooting & Trends
Learn how operators troubleshoot water-quality problems using trends, baselines, related parameters, rate of change, process lag, instrument verification, source conditions, treatment data, and distribution-system information.