Thursday, December 23, 2010

ENVIRO-NEWS: Statement from EPA on Chromium-6

The following is a statement from EPA Administrator Jackson regarding her meeting with 10 U.S. senators on Chromium-6.

The evidence of widespread contamination of US freshwater supply's is a clear concern to human health. Chromium 6 is a known carcinogen.

AP

---------- Forwarded message ----------
From: "Makuch, Joseph" <Joseph.Makuch@ars.usda.gov>
Date: Dec 23, 2010 10:07 AM
Subject: [ENVIRO-NEWS] Statement from EPA Administrator Jackson regarding her meeting with 10 U.S. senators on Chromium-6
To: <Enviro-News@ars.usda.gov>

From: U.S. EPA [mailto:usaepa@govdelivery.com]
Sent: Wednesday, December 22, 2010 2:39 PM
Subject: EPA News Release (HQ): Statement from EPA Administrator Jackson
regarding her meeting with 10 U.S. senators on Chromium-6

CONTACT:
Adora Andy (Media Only)
andy.adora@epa.gov
202-564-2715

Jalil Isa (Media Only)
isa.jalil@epa.gov
202-564-3226
202-564-4355

FOR IMMEDIATE RELEASE
December 22, 2010


Statement from EPA Administrator Jackson regarding her meeting with 10
U.S. senators on Chromium-6

WASHINGTON - Yesterday, EPA Administrator Lisa P. Jackson met with
Senators Richard Durbin (IL), Mark Kirk (IL), Debbie Stabenow (MI), Bob
Casey (PA), Ben Nelson (NE), Bill Nelson (FL), Daniel Akaka (HI), Dianne
Feinstein (CA), Jeff Bingaman (NM), and Jeff Merkley (OR) to brief them
on the issue of chromium-6 in drinking water as it relates to this
week's Environmental Working Group (EWG) report.

The following is a statement from Administrator Lisa P. Jackson
regarding that meeting:

"Yesterday, I briefed members of the Senate on chromium-6 in drinking
water supplies as it relates to the recent Environmental Working Group
report. EPA has already been working to review and incorporate the
ground-breaking science referenced in this report. However, as a mother
and the head of EPA, I am still concerned about the prevalence of
chromium-6 in our drinking water.

Today, I am announcing a series of actions that the EPA will take over
the coming days to address chromium-6 in our drinking water. It is clear
that the first step is to understand the prevalence of this problem.
While the EWG study was informative, it only provided a snapshot in
time. EPA will work with local and state officials to get a better
picture of exactly how widespread this problem is. In the meantime, EPA
will issue guidance to all water systems in the country to help them
develop monitoring and sampling programs specifically for chromium-6.
We will also offer significant technical assistance to the communities
cited in the EWG report with the highest levels of chromium-6 to help
ensure they quickly develop an effective chromium-6 specific monitoring
program.

The science behind chromium-6 is evolving. EPA is already on a path
toward identifying and addressing any potential health threats from
excessive, long-term exposure with its new draft assessment released
this past fall. This assessment still needs to be reviewed by
independent scientists as an essential step toward tightening drinking
water standards for chromium-6. Strong science and the law will continue
to be the backbone of our decision-making at EPA. EPA takes this matter
seriously and we will continue to do all that we can, using good science
and the law, to protect people's health and our environment."


Meeting Readout:

In yesterday's meeting with the 10 U.S. senators, Administrator Jackson
described EPA's current chromium-6 risk assessment, which is a review
EPA immediately started in response to new science in 2008 showing a
link between chromium-6 ingestion and cancer. This risk assessment -
which would be the first step to updating the drinking water regulations
- will be finalized after an independent scientific peer review in 2011.
Administrator Jackson told the senators that based on the draft risk
assessment, EPA will likely revise drinking water regulations to account
for this new science. These revisions would only take place after an
independent science panel has verified the underlying science.

Administrator Jackson told the senators that EPA currently requires
testing for total chromium which includes chromium-6. She noted that the
testing does not distinguish what percentage of the total chromium is
chromium-6 versus chromium-3, so EPA's regulation assumes that the
sample is 100% chromium-6. This means the current chromium-6 standard
has been as protective and precautionary as the science of that time
allowed.

Administrator Jackson told the senators that according to the most
recent data, all public water facilities are in compliance with the
existing total chromium standards, but she agrees that chromium-6 is a
contaminant of concern. She also told the senators that people can have
their water tested and install home treatment devices certified to
remove chromium-6 if they are concerned about the levels of chromium-6
in their drinking water.

The administrator concluded the briefing by making the following points
and commitments:

1)      While provocative, the EWG report is a self-described "snapshot"
in time and does not provide a full, long-term picture of the prevalence
of chromium-6 in our drinking water. EPA will work with state and local
officials to better determine how wide-spread and prevalent this
contaminant is.

2)      Meanwhile, EPA will issue guidance to all water systems on how
to test for and sample drinking water specifically for chromium-6. This
guidance will provide EPA-approved methods and other technical
information.

3)      EPA will also offer technical expertise and assistance to the
communities cited in the EWG study with the highest levels of chromium.
This assistance will include providing technical experts to work with
water system operators and engineers to ensure the latest testing and
monitoring is being utilized.

4)      Once EPA's chromium-6 risk assessment is finalized, EPA will
work quickly to determine if new standards need to be set. Based on the
current draft assessment, which has yet to undergo scientific peer
review, it is likely that EPA will tighten drinking water standards to
address the health risks posed by chromium-6.


More information on chromium:
http://water.epa.gov/drink/contaminants/basicinformation/chromium.cfm

To track the status of the ongoing risk assessment:
http://cfpub.epa.gov/ncea/iristrac/index.cfm?fuseaction=viewChemical.sho
wChemical&sw_id=1107

[or http://tinyurl.com/2vug4yj ]

[deletions]

***********************************************
Enviro-News is a service of the Water Quality
Information Center at the National Agricultural
Library.  The center's Web site is at
http://www.nal.usda.gov/wqic/.

The Enviro-News list facilitates information exchange.
Inclusion of an item in Enviro-News does not imply
United States Department of Agriculture(USDA) agreement,
nor does USDA attest to the accuracy or completeness of
the item. See
http://www.nal.usda.gov/wqic/environews.shtml#disclaimer
You can contact the list owner at
owner-Enviro-News@ars.usda.gov.
***********************************************

Monday, December 13, 2010

Why is a snowfall important for restoring freshwater resources?



It’s not really complicated. Snow melts slowly and therefore more of the water that results from the melt is retained by ground sources.
When it rains the water that falls to the ground generally doesn’t have time to soak in; the heavier/faster the rainfall the less that is retained. Rainwater ends up traveling to storm water systems and ends up dumping into rivers or streams and is carried out of the region on which it fell.

Using a rule of thumb that each 10 inches of snow, if melted, would produce one inch of water, then each inch of snow produces about 2,715 gallons of water per acre. Actual amounts can vary considerably depending on whether the snow is heavy and wet or powdery and dry, so this is based on an average water content of snow.
Heavy snow has high water content. 4 or 5 inches of a heavy, wet snow contains approximately one inch of water. It may take 20 inches of dry, powdery snow to equal that one inch of water. The 10=1 equation also assumes a 'perfect' snow-melt without evaporation which put some of the moisture back into the atmosphere.
Snow pack that accumulates each year in the mountains across the United States are a vital part of the hydrologic cycle. The snows that melt off each spring provide essential runoff to streams and reservoirs which recharge critical fresh water reservoirs and filters into underground which are being depleted at a rate that Mother Nature can’t keep up with.
As inconvenient as they seem, seasonal snowfalls are a crucial part of our lives. We should be thankful for them.

AP
www.AskAquaPro.com  
AquaPro@AskaquaPro.com  
www.AquaEnvi.org

Wednesday, December 1, 2010

ENVIRO-NEWS: Rain Gardens Sprouting Up Everywhere

---------- Forwarded message ----------
From: "Makuch, Joseph" <Joseph.Makuch@ars.usda.gov>
Date: Dec 1, 2010 11:31 AM
Subject: [ENVIRO-NEWS] Rain Gardens Sprouting Up Everywhere
To: <Enviro-News@ars.usda.gov>

From: ARS News Service [mailto:NewsService@ars.usda.gov]
Sent: Wednesday, December 01, 2010 8:15 AM
Subject: Rain Gardens Sprouting Up Everywhere

________________________________________
ARS News Service
Agricultural Research Service, USDA
--View this report online, plus photos and related stories, at www.ars.usda.gov/is/pr
--Follow us on Twitter at http://twitter.com/ARSInformation
________________________________________
 [deletions]

Rain Gardens Sprouting Up Everywhere
By Don Comis

December 1, 2010

Rain gardens are increasingly popular with homeowners and municipalities and are mandatory for many communities nationally. U.S. Department of Agriculture (USDA) scientists are finding ways to improve rain gardens so they not only reduce runoff, but also keep toxic metals out of storm drains.

Rain gardens are plantings in depressions that catch stormwater runoff from sidewalks, parking lots, roads and roofs. Rain gardens come in various shapes and sizes, from large basins carved by front-end loaders to small artificial streambed-like formations complete with pebbles. Rain gardens not only slow water down to give it time to soak into the ground and be used by plants, but also filter out sediment and chemical pollutants.

Plant physiologist Rich Zobel at the Agricultural Research Service (ARS) Appalachian Farming Systems Research Center (AFSRC) at Beaver, W.Va., and research associate Amir Hass, who works for West Virginia State University in Institute, W.Va., and is stationed at Beaver, are working on improving rain gardens. They are collaborating with ARS hydrologist Doug Boyer and ARS soil chemist Javier Gonzalez at Beaver, and colleagues at the ARS Southern Regional Research Center (SRRC) in New Orleans, La., and the ARS Eastern Regional Research Center (ERRC) in Wyndmoor, Pa.

ARS is USDA's principal intramural scientific research agency, and this research supports USDA's commitment to agricultural sustainability.

The scientists at the SRRC found that poultry litter biochar-activated carbons created from the charred remains of poultry litter-is a powerful pollutant magnet. It can attract heavy metals such as copper, cadmium and zinc, which are ordinarily tough to snag from wastewater.

ARS chemists Isabel Lima and Wayne Marshall (now retired) at the SRRC developed the ARS-patented method for turning agricultural bio-waste into biochar. They created the biochar by subjecting poultry litter-bedding materials such as sawdust, wood shavings and peanut shells, as well as droppings and feathers-to pyrolysis, a high-temperature process that takes place in the absence of oxygen.

Hass and colleagues are testing the poultry litter biochar as well as other farm and industrial byproducts at two demonstration rain gardens in the Beaver area, as well as at plots at a county landfill and a mineland reclamation site.

Read < http://www.ars.usda.gov/is/AR/archive/nov10/gardens1110.htm > more about this research in the November/December 2010 issue of Agricultural Research magazine.

________________________________________
USDA is an equal opportunity provider, employer and lender. To file a complaint of discrimination, write: USDA, Director, Office of Civil Rights, 1400 Independence Ave., S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice), or (202) 720-6382 (TDD).
________________________________________
[deletions]

ARS News Service, Information Staff, Agricultural Research Service
5601 Sunnyside Ave., Room 1-2251, Beltsville MD 20705-5128
NewsService@ars.usda.gov | www.ars.usda.gov/news
Phone (301) 504-1636 | fax (301) 504-1486

***********************************************
Enviro-News is a service of the Water Quality
Information Center at the National Agricultural
Library.  The center's Web site is at
http://www.nal.usda.gov/wqic/.

The Enviro-News list facilitates information exchange.
Inclusion of an item in Enviro-News does not imply
United States Department of Agriculture(USDA) agreement,
nor does USDA attest to the accuracy or completeness of
the item. See
http://www.nal.usda.gov/wqic/environews.shtml#disclaimer
You can contact the list owner at
owner-Enviro-News@ars.usda.gov.
***********************************************