| April 11, 2007 – Volume 8, No. 15 |
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This
week's NEWS
External
panel review of Durham,
NC's lead testing is critical of State-EPA
confusion; city IDs cause of problem! Faster EPA approval
of new testing methods:
Does anyone have a problem
with that? Backflow
incident in Mississippi
town leads to BWA with a
"do not drink"
along the way. Those
darn PPCPs just
won't go away... by themselves,
but what to do with them?
Bling water at $40
per bottle... Paris
Hilton's dog likes it but
is it on its way out? How
to get your
arsenic allotment without
drinking the water? Election
of one person (not the President!)
stops Massachusetts anti-fluoridation
lawsuit.
Quick Links Navigation:
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Federal Updates
State Updates
Nitrate
Microbiological
PPCPs and EDs
Cross-Connection
Control: Public Notification
- Backflow
of herbicide into Mississippi system results
in
"do not drink" warning (Clarksdale
Press Register, April 6) which was later changed by the
state to a boil
water alert?
Commentary: The
back story of this incident
is illustrative: A farmer drops the end of a
water hose into a herbicide mixing tank at the
same time as a pressure drop in the system siphoning
Roundup into the system. The
"do not drink" notice went out until flushing
was complete, then the "boil water" notice
was issued to cover uncertainty
until the bacti results
all come back clean.
Water Treatment
- U.S.
International Trade Commission approves high
tariffs on activated carbon imported from China;
utilities' costs may increase (Water
Technology News, April 9) (Note: Final rule due on April
12)
- Arizona
district puts its
"twofer" water treatment plant to work: VOCs and arsenic! (ADEQ
news release, April 6)
Commentary: The "dual
treatment facility" moniker refers not to the two different
types of contaminants being removed but, rather,
to the plant's simultaneously producing safe
drinking water AND cleaning up the ground water
at a Superfund site. The arsenic is being addressed
by "adsorptive
granular iron media in pressure vessels," but
no information is given on how the VOCs are
removed.
- Florida
town's chief water operator says they need a
new plant, but the 1961 version is well operated in the meantime (LaBelle
NewsZap, April 4)
- California
city's $0.5 million FEMA grant for water treatment
plant rehab is threatened by delays (Simi Valley Acorn, April
6)
- Riverbank
filtration using slant wells may be good alternative
to both surface water treatment and
conventional wells (SDENR, March 15)
- $22
million well treatment plan for Canadian city
is forward-looking: UV, TCE removal,
and space for manganese (Waterloo Record, April 10)
Radiological
Security
Arsenic
Disinfection
Byproducts
Fluoridation
Legal
Issues
Aesthetics
Lead
- Report:
Durham, NC, lead tests done in good faith (Durham Herald
Sun, April 6)
Commentary: Almost
buried in the discussion of an outside review
panel's report on Durham's lead testing was
the news that the city thinks they know what
caused the increase in lead levels. "...Water
Management Director Terry Rolan said that when
his plant operators started using the chlorine/ammonia
mix, they also boosted the alkalinity of the
city's water in line with industry practice to
keep ... from causing taste and odor problems.
They assumed that the increased alkalinity would,
if anything, help prevent lead from leaching
out of household plumbing... But after a child
... came down with lead poisoning last spring,
they ... found an EPA report that warned higher
alkalinity could reduce -- by half -- the effectiveness of the
chemical Durham uses to minimize pipe corrosion.
'None of us recognized the problem until we started looking,
digging into the problem,' Rolan said, adding that once officials
read the EPA report, plant operators lowered the water's alkalinity
slightly and tripled the amount of corrosion
inhibitor they use."
- Canadian
city says
"standing water test"
for lead is not the standard (Prince
Albert Daily Herald, April 5)
- Elevated
lead levels found in 9 of 56 samples collected
at North Carolina school (Winston-Salem
Journal, April 7)
TCE
and PCE
Source Water Protection
Desalination
Bottled Water
Water Scams
Newsletters
Meetings
Water System Recognition
Private Wells
International
Cancer Cluster
- Fallon,
NV, families and researchers search for answers
to leukemia cluster (UNR,
Nevada Silver and Blue, PDF file, 5.92 MB)
Commentary: There has been
no definitive link of this
"cluster" to drinking water, even though arsenic, tungsten,
uranium, polonium-210, and jet fuel have all
been suggested as causative agents.
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McGuire
Malcolm Pirnie Environmental Consultants offers specialty
services to assist utilities in managing water treatment
residuals (WTRs). We can assist utilities with recycle
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