July 24, 2002 -- Volume 3, No. 30
safedrinkingwater.com NEWS -- the premier newsletter for the drinking water quality industry.

This week's NEWS

Impact of state right-to-know laws on vulnerability assessments is evaluated. The Western arid states weigh in on EPA's arsenic implementation strategy. Outside of Detroit, alleged water illness may be related to the problem.......or the cure? E. coli on the land and in the air......plane! When it comes to Boil Water Advisories, better safe than sorry may not always be the right, or responsible, way. Utilities find that any unusual water quality condition can raise customer anxiety about security. Colorado "bottled-water only" advice is not about promoting sales.....no help needed there! Fluoridation decisions are apparently never final. And just what is Aquaphemera, anyway?


Terrific New Job Reservoir Opportunities!

Please take a moment to review these position openings. If you are not looking, please pass along to a colleague that is!

•  Water/Wastewater Engineers (Various, CA)
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•  Level 2 Service Technician (San Jose, CA)
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•  Safety Program Administrator (Covina, CA)
•  Quality Assurance Supervisor (Covina, CA)
•  Water Resources Specialist (Concord, CA)
•  General Manager (Lovelock, NV)
•  Your Job Here! -- Now sent to more than 4500 subscribers!

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Water Security

Taste and Odor/Security

Microbiological

Unusual Water Quality Problems

  • The Colorado health department has issued unusual "Don't boil the water" bottled-water only advisories in the severe drought-impacted mountain communities of Morrison and Beulah The Department has developed a thoughtful and valuable guidance matrix: Drought Concerns Impacting Water Quality and Treatment (PDF file, 5 pages)
    Commentary: The 94-98% flow reduction in the streams serving these towns combined with the fact that the streams are almost 100% effluent from upstream communities makes the reasoning behind the state's action very clear. The challenge to the multi-barrier water treatment facilities (coag, floc, sed, filtration, chlorination and UV) would be significant. The concern about concentrating contaminants by water boiling stems from elevated nitrate levels in the raw water. And there can be no room for any questions about the ice used in Morrison's famous margaritas!
  • Detroit suburb faces tough, costly decisions on water system upgrade (Detroit News, July 19) Meanwhile, illnesses in New Haven customers may be from main-breaks, and a boil-water advisory was issued. However, some suspect the illnesses are related to the use of "swimming pool" chlorine in a drinking-water well (Detroit News, July 21)
    Commentary: It appears that "swimming pool" chlorine was used to disinfect a local well before turning it on to augment the normal purchased water supply because of local water main breaks. Some swimming pool chemicals may contain stabilizers such as "cyanurates" which help with the disinfection of pool water exposed to sunlight. No information on dosages encountered or symptoms are given. Health and city officials issued a precautionary "boil water advisory" because of the main breaks and low pressures, not because of the chlorine.

Arsenic

Perchlorate

State Updates

Federal Updates

Source Water Protection Issues

Groundwater Contamination

Endocrine Disruptors

Fluoridation

Alternative Water

MTBE

International

General

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