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June 14, 2006 – Volume 7, No. 24 |
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This
week's NEWS
Killing two
(water quality) birds with one (treatment) stone in
Arizona. The
spigot on the LT2ESWTR guidance vat is open
and flowing freely. North Carolina deals with lead
monitoring issues: Selection
of sampling sites is under
the microscope... and the
gun. The chlorination-DBP
conflict and the small system-large
system issues come
together in Mississippi. Is there
a "giant leap
for mankind" in desalting
technology? Large
Florida county board gets
recommendation to cease
fluoridation based on
NRC report. Major jury
verdict in PCE-groundwater case
in California.
Quick Links
Navigation:
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Federal
Updates
State Updates
Water Treatment
Disinfection
Byproducts
Microbiological
Lead
- County
testing in Durham, NC, shows high lead may be
more widespread than single apartment house where
lead-poisoning occurred, and
in the same region, testing
by other utilities that use chloramines has shown
no elevated lead results.
Meanwhile, there
are statewide concerns about appropriateness of past
lead testing by water systems (News and Observer, June 13)
Commentary: The
reporting shows how
difficult this situation
is for all involved
(consumers, utilities,
regulators, etc.),
just how complex the Lead
and Copper Rule is, and that it continues to be
a significant issue. The validity of the questions
raised about past testing
by utilities is not clear,
especially the inclusion
of houses built a year
or so beyond
the three-year period
prior to the ban on using
lead solder. It
seems like this would
be relatively insignificant
given the 20-year passage
of time. However,
the graphic
produced by the investigative
newspaper (JPG file, 751 K) suggests
otherwise.
- EPA
and Missouri officials find alarmingly high lead levels
in 200 private wells (Park
Hill Daily Journal, June 9)
Commentary: These
very high lead levels have nothing to do with corrosion
of lead or copper pipes or fixtures and everything
to do with source water lead, which is an anomaly.
The reason: "...is
the site of more than
1,000 sites of lead and
barite mining, milling
or smelting. Mining of
galena (a natural state
of lead) began in Washington County in the 1720s
and ended in the early 1900s. Mining of barite, also
referred to as tiff, began around 1855 and ended
in 1997."
Infrastructure
Arsenic
Legalities: PCE and
TCE
Nitrate
Chromium
Pharmaceuticals
Manganese
Bottled Water
Water Security
Fluoridation
Desalination
Water Reuse
Perchlorate
Publications
International
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