May 14, 2008 – Volume 9, No. 20
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This week's NEWS

What EPA told the senators about perchlorate didn't go down well... more legislation likely. Huge settlement reached in MTBE litigation by water agencies against a dozen oil companies, but Exxon Mobil and others decide to take their chances on federal court trial. "Locational annual averages of DBPs" gets attention in Arizona after media does its own sampling. The history of using chlorine for drinking water disinfection is highlighted during National Drinking Water Week.


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Federal Updates
State Updates
Perchlorate and TCE
Backflow Protection
MTBE
Disinfection Byproducts

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Radium
Source Water Protection
Fluoridation
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Conferences

 

Federal Updates

State Updates

Perchlorate and TCE

Backflow Protection

  • New state information on backflow protection requirements and testing:

MTBE

Commentary: The settlement goes a long way toward moving the conflict over MTBE contamination out of the courts and into the implementation of treatment solutions. Cleaning up MTBE from ground water should be in everyone's best interest.  However, an important event in the history of this massive litigation effort occurred on the same day as the settlement, but was overlooked in the big news of hundreds of millions of dollars. On May 7, 2008, Judge Shira A. Scheindlin (who has been in charge of the federal cases since their assemblage under the federal umbrella) issued a decision (PDF file, 940 K) that excludes the testimony and reports of the plaintiffs' expert witness on taste and odor of MTBE from the federal cases. A key issue in conflict during the pre-trial reports and depositions has been the concentration of MTBE which can be detected by consumers in drinking water. The defendants' expert used a peer-reviewed paper that established a 15-ppb odor threshold concentration for MTBE. The plaintiffs' expert claimed that a large percentage of the population could detect MTBE at less than 1 ppb. The judge ruled that the plaintiff expert's "testimony is not 'the product of reliable principles and methods.'" The ruling will have a significant impact on the remaining federal cases. How this will play out in the federal court system remains to be seen.

Disinfection Byproducts

Water Treatment

Security

Microbiological

PFOA

Arsenic

 

NEWS CONTINUES BELOW

Is Your Utility Considering a Switch to Chloramines?

 Malcolm Pirnie is on the cutting edge of developing and implementing techniques for converting to chloramines and managing nitrification. Our more than 20 years of experience in this specialty includes converting two systems serving 18 million people to chloramines, consulting on several others, and ensuring high-quality chloraminated water in dozens of other utility systems. If your utility is considering chloramines, or if you are experiencing nitrification or other issues with your current conversion, we can help.

Please visit our website to learn more or contact Michael McGuire at mmcguire@pirnie.com for more information.


 

PPCPs

Invasive Species

Radium

Source Water Protection

Fluoridation

Bottled Water

Conferences


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