| January 3, 2002 -- Volume 3, No. 1
This week's NEWS
Welcome to This week's and this year's NEWS...No. 1. EPA's Perchlorate health risk assessment will be aired......before California's goes final? NRDC sues EPA for adopting the arsenic MCL they previously advocated, sort of. Health risk assessment for laypersons may help with communications. Sydney not out of the crypto-woods. Where is an MRDL an MCL? In California, if you are a POU device! Congress will conference to reconcile House-Senate differences on water security funding issues.
awaited EPA health risk assessment for perchlorate
is......coming soon (Federal
Register, January 2)
the USEPA has announced that a revised draft Human
Health and Ecological Risk Assessment of Perchlorate
will be available in the Federal Register on January
9 with a public comment period ending February 11.
An external peer review workshop will be held in
Sacramento on March 5-6. In the meantime, there is
no news on the status of the California risk
assessment that is underway to support a Public
Health Goal for drinking water.
Health Risk Assessment Guide
Federal Regulatory Activity
Vulnerable Population Regulations
State Regulatory Activity
has updated its guidance manual for preparing Consumer Confidence
file, 52 pages)
Changes are clearly annotated and include mandatory
arsenic health language, technical corrections and
new information on the aptly labeled "Regulated
Contaminants with No MCLs" (i.e. Unregulated
considers health risk limits for groundwater rule
proposes regulations on disinfection, enhanced
filtration and public notification
POU Device certification regs will address MRDLs (Water Tech Online, December
The article correctly indicates that CDHS will
differentiate between "aesthetic" and
"health" claims in dealing with the
Maximum Residual Disinfectant Levels for chlorine,
chloramine and chlorine dioxide in proposed new
device certification regulations. However, the
reference to "chlorine gas" is in
error. California's device certification law
does not address aesthetic claims. Device
manufacturers were concerned that DHS' treating the
chlorine MRDL as "an MCL" (based on the
Department's legal advice) would necessitate more
costly testing for aesthetic claims. The testing
requirements for challenge level and percent removal
of a contaminant are more stringent for "health
claims" than for "aesthetic
claims." Water suppliers have some
obvious apprehension about water disinfectants being
called "contaminants" which was why the
MRDL language evolved out of the Stage 1 DBP rule
Water System Security
Groundwater and Superfund
town looks at deeper well despite past quality
issues (The Times (Indiana), December
Carolina USAF base groundwater clean-up almost
complete (The State, December 21)
of private PCE-contaminated wells to get city water (Santa
Rosa Press Democrat, December 26) and five
more dry cleaners may have contributed to the
problem (Santa Rosa Press Democrat, December 26)
Going out of business
will not let Massachusetts company off the hook for groundwater clean-up (Springfield
Union-News, December 28)
Superfund site considered for drinking water reservoir (Environmental News Network, December 21)
If the Berkeley Pit is not a watering hole for Cal
undergrads, what is it? The 2nd largest open pit
mine, the top tourist attraction in Butte, the
largest Superfund site in the US, a potential
drinking water reservoir, or...... all of the above?
agreement reached on Southern California Superfund site clean-up (LA Times, December 29)
- Trust's Rust Busts Bridal Lust
While it features spores, pathogens and
herbicides, it has nothing whatsoever to do with
drinking water, but it provides great inspiration
for sports-page headline writers!
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