Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water news roundup
This bimonthly roundup features highlights of the hottest news stories of recent months as reported in WATERWEEK, AWWA's weekly newsletter to member utilities. Topics covered include: experts identify steps to address distribution system risks by implementing voluntary measures detailed in AWWA Standard G200; under terms of a deal reached this fall by Congress, water and wastewater utilities are exempted from interim chemical security requirements authorized in the fiscal year (FY) 2007 spending bill for the Department of Homeland Security (DHS); the U.S. Environmental Protection Agency (USEPA) expects to launch its initial WaterSentinel pilot project, a system for timely detection and appropriate response to drinking water contamination threats and incidents, at the Greater Cincinnati Water Works (GCWW) during the summer of 2007; starting in 2010, pipes and plumbing fixtures delivering potable water in California can't contain more than 0.25% lead under legislation signed in late September by California Gov. Arnold Schwarzenegger; USEPA issued guidance last fall advising utilities not to ask homeowners who collect tap‐water samples for Lead and Copper Rule (LCR) compliance purposes to remove faucet aerators before doing so; strong criticism by AWWA on USEPA's requirement in proposed revisions to the LCR to require water systems to get state approval before making any treatment changes; water utilities in California would have to comply with a perchlorate standard of 6 μg/L under a proposed rule that also provides variances for economically distressed communities; AWWA has faulted a USEPA plan to conduct another Community Water System Survey (CWWS) for falling short in its attempt to seek additional information to measure the effects of drinking water regulations and the effectiveness of state primacy programs; in commenting on USEPA's cumulative risk assessment for chlorinated triazine herbicides, AWWA reiterated its long‐held position that manufacturers of atrazine and simazine and their degradates should be responsible for controlling human exposure to them rather than that burden falling on water suppliers; water quality monitoring data from thousands of domestic wells across the U.S. indicate that the top contaminants found include three organic pesticides, with arsenic and nitrate topping the list of contaminants exceeding their federal drinking water standards; and, USEPA water officials are backing away from a 2008 target of having 95% of people served by community water systems receive water that meets all health‐based standards.
Water news roundup
This bimonthly roundup features highlights of the hottest news stories of recent months as reported in WATERWEEK, AWWA's weekly newsletter to member utilities. Topics covered include: experts identify steps to address distribution system risks by implementing voluntary measures detailed in AWWA Standard G200; under terms of a deal reached this fall by Congress, water and wastewater utilities are exempted from interim chemical security requirements authorized in the fiscal year (FY) 2007 spending bill for the Department of Homeland Security (DHS); the U.S. Environmental Protection Agency (USEPA) expects to launch its initial WaterSentinel pilot project, a system for timely detection and appropriate response to drinking water contamination threats and incidents, at the Greater Cincinnati Water Works (GCWW) during the summer of 2007; starting in 2010, pipes and plumbing fixtures delivering potable water in California can't contain more than 0.25% lead under legislation signed in late September by California Gov. Arnold Schwarzenegger; USEPA issued guidance last fall advising utilities not to ask homeowners who collect tap‐water samples for Lead and Copper Rule (LCR) compliance purposes to remove faucet aerators before doing so; strong criticism by AWWA on USEPA's requirement in proposed revisions to the LCR to require water systems to get state approval before making any treatment changes; water utilities in California would have to comply with a perchlorate standard of 6 μg/L under a proposed rule that also provides variances for economically distressed communities; AWWA has faulted a USEPA plan to conduct another Community Water System Survey (CWWS) for falling short in its attempt to seek additional information to measure the effects of drinking water regulations and the effectiveness of state primacy programs; in commenting on USEPA's cumulative risk assessment for chlorinated triazine herbicides, AWWA reiterated its long‐held position that manufacturers of atrazine and simazine and their degradates should be responsible for controlling human exposure to them rather than that burden falling on water suppliers; water quality monitoring data from thousands of domestic wells across the U.S. indicate that the top contaminants found include three organic pesticides, with arsenic and nitrate topping the list of contaminants exceeding their federal drinking water standards; and, USEPA water officials are backing away from a 2008 target of having 95% of people served by community water systems receive water that meets all health‐based standards.
Water news roundup
Journal ‐ American Water Works Association ; 99 ; 16-29
01.01.2007
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Atrazine , Copper , Pesticides , Water Contamination , Security , Water Systems , California , Primacy , Risks , Aerators , Arsenic , Lead , Wells , Nitrates , Water Quality Monitoring , Herbicides , Utilities , Compliance , Federal Legislation , Federal Regulations , Cincinnati, Ohio
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