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Water Residuals to Reduce Soil Phosphorus
Phosphorus in surface runoff from agricultural lands is often implicated in the degradation of surface water quality. Many states are developing soil phosphorus application limits. …
Case Studies of Modified Treatment Practices for Disinfection By-product Control
Utilities must decide whether to modify their existing treatment practices to achieve compliance with the D/DBP regulations. A regulatory impact analysis predicted that up to 70% …
Optimization of Ozone Disinfection Systems with Fluorescent-Dyed Microspheres
The operation of ozone contactors needs to be optimized to provide adequate disinfection while minimizing the formation of disinfection by-products. However, measuring the actual …
Estimating Health Risks from Infrastructure Failures
Health risks from infrastructure failures are not well understood, despite the potential widespread introduction of chemical, microbial, and physical contaminants, as well as …
Managing Distribution Retention Time to Improve Water Quality
When water leaves a treatment works and travels through a distribution system, its quality, with respect to many chemical and biological parameters, will degrade. The quality of …
Creating Effective Information Technology Solutions
Technology offers one of the significant levers that utility managers have available to truly “do more with less.” But it often is difficult for managers to know how much to spend …
Cellular Responses to Arsenic
Although ingestion of high levels of arsenic is believed to cause certain cancers, estimates of cancer risk resulting from exposure to low levels of arsenic are the subject of …