Decentralized treatment helps small communities comply with arsenic rule and prepare for future regulations
NSF/EPA project delivers cost-effective solutions to meet new arsenic MCL in Grimes, Calif.
Commercial POU installations improve drinking water quality in Grimes, Calif.
Joint NSF/EPA study analyzes the feasibility of an economically sustainable POU/POE decentralized public water system
Private systems, while not federally regulated, are vulnerable to biological contamination from sewage, improper well construction and poor-quality water sources.
Whether the utility serves 5,000 people or 500,000 people, a facility that is easy to attack is an attractive, tempting target. Such water utilities must remove the metaphorical bull's-eye tattooed on their facilities by taking swift, certain, prudent action.
Medium- and smaller-sized water utilities find themselves in a bind as they are compelled to obey an underfunded government mandate
Emerging commercial technologies are replacing the "old standards" for small water system (SWS) applications. In contrast to large community systems, competitive economics, simple operation and low waste production will drive changes in technology and engineering. Some out-of-the-box thinking will be necessary in the shift to provide simpler, packaged or preengineered arsenic treatment systems.
Arsenic Treatment for Small Public Water Systems
This article will focus on three popular forms of chlorine: gas, sodium hypochlorite and dry calcium hypochlorite tablets. Each has advantages and disadvantages relative to cost, convenience, effectiveness, storage and regulatory issues. A look at the pros and cons of each can answer many questions about what's right for your application.
Tablet Chlorination Proves a Viable Alternative
In February, NSF International arranged for many experts to cover the issues and facets of point-of-use and point-of-entry (POU/POE), how they can be used for PWS compliance and other opportunities for the manufacturers and users. This article is intended to provide opinions and a broad conference overview.
Some really important research going on right now, which is critical for the point-of-use/point-of-entry (POU/POE) industry in order for POU/POE treatment to become an accepted practice for small public water system compliance. It seems as though we are closer than ever to finding acceptance in this arena.