August 27, 2008 – Volume 9, No. 35
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This week's NEWS

How many bacteriological samples are needed... to be enough? Dustup in Florida over implementation of backflow prevention device requirements shows once again: Cross-connection control can be messy! New health-effects questions raised about arsenic in drinking water.  International effort to evaluate bioassay methods for some potential endocrine disruptors shows progress. It's summertime; do you know where your cyanobacteria are? Political water in Denver is refreshing!


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Federal Updates

State Updates

Microbiological

Arsenic

Cross-Connection Control

  • Florida system's requirements for backflow devices spurs backlash (Tampa Tribune, August 25)
    Commentary: Cross-connection control is an extremely important aspect of protecting drinking water quality and the health of consumers, but it is not simple and it's not easy. The difficulties are illustrated by the fact that the USEPA has never (yet) attempted to regulate cross-connections. The states have been left on their own to cover this waterfront... taking the plumbing codes a step further. One of the most difficult issues is deciding whether to require meter protection, and what level of protection to require, when there is an unapproved, alternative source of water on the premises for irrigation use... and when there is no direct connection between the systems (...or at least there isn't supposed to be!).

Disinfection Byproducts

Endocrine Disruptors

Political Waters

Perchlorate

Lead in the Environment

Cyanobacteria (Blue-green algae)

Fluoridation

Invasive Species

Infrastructure

Desalination

General Information

International


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