Source: http://www.docstoc.com/docs/2259588/Missouri-Department-of-Natural-Resources-Information-on-Weldon-Spring
Timestamp: 2013-12-21 19:33:15
Document Index: 360510288

Matched Legal Cases: ['art 1', 'art 1', 'art 2', 'art 3', 'art 3', 'art 4']

Missouri Department of Natural Resources Information on Weldon Spring
March 27, 2001                                                                                                      Natural Resources
U. S. Department of Energy’s Weldon Spring Site
Contact Information                                                            Historical Overview
Missouri Department of Natural                                                     At the Weldon Spring Site Remedial Ac-
Resources                                                                      tion Program a major cleanup is taking
PO Box 176                                                                  place. This site has been contaminated by
Jefferson City, MO 65102                                                    years of production of materials to support
Phone: (573) 751-3907
and defend the United States during war
Fax: (573) 526-5268
times. Since 1993 the Missouri Depart-
ment of Natural Resources has been on-
1 (800) 361-4827                                                               site at the Department of Energy’s Weldon
Spring cleanup. The department’s Federal
Weldon Project Field Office                                                    Facilities Section was established to pro-
7045 Highway 94 South                                                       vide review and oversight on Superfund
St. Charles, MO 63304                                                       sites for the Department of Defense and
Phone: (636) 441-8030                                                       Department of Energy. The section moni-                                                           Extraction well being installed as part of a pilot study to remediate
Fax: (636) 447-0729                                                         tors groundwater, surface water and soils                                                         contamination in the groundwater.
checking for contamination levels above
www.dnr.state.mo.us/deq/hwp                                                    the cleanup targets. These levels are es-
tablished from the Record of Decision,                                                            Air Sampling
which determines specific needs for each
site. The following information and charts                                                        The Department of Natural Resources
summarize our monitoring results at the                                                           has not conducted independent air moni-
Weldon Spring cleanup. Individual moni-                                                           toring. However, we have reviewed the
toring data is available to the community                                                         Department of Energy’s data and moni-
and interested citizens by contacting the                                                         toring process for air sampling.
Weldon Spring Project Field Office.
Sampling of the water at selected springs near the site, including Burgermeister Spring (Chart 1 and 2), has
shown uranium and other contaminants such as nitrate continue to exceed the federal drinking water standards
set out by the U.S. Environmental Protection Agency. These springs are not currently used as a public drinking
Chart 1                                                                                                                    Chart 2
Select Radioactivity Results for Burgermeister Spring                                                                                 Nitrate Results for Burgermeister Spring
100                                                                                                                                                      25
alpha radiation pCi/L
90                                                                                      beta radiation pCi/L
80                                                                                      uranium pCi/L
40                                                                                                                                                                       Nitrate Federal Limit
Uranium Federal Limit
9                                                                                                    0
98          -98        b-9
y-9              -99          -99     r- 0
0          -01           01
ul-         v                                          g            c
Ma                        Oc
J            No           Fe             Ma             Au           De                      Ju                         Ja                               Jul-99   Oct-99      Jan-00         May-00      Aug-00       Nov-00        Mar-01
Date Sampled                                                                                                        Date Sampled
Sampling from groundwater monitoring wells placed in between the Weldon Spring site and the St. Charles
County public drinking water supply wells (Chart 3 and 4) have shown that the uranium contamination in the
groundwater is not above the federal drinking water standards. Further monitoring of the county’s wells and
treatment plant shows the water supply from this source is safe because it meets the drinking water standards.
Chart 3                                                                                       Chart 4
Select Radioactivity Results for Remington Monitoring Well #2 Upgradient of                     Select Radioactivity Results for Remington Monitoring Well #4 Upgradient
the St. Charles Drinking Water Supply Well                                                  of the St. Charles Drinking Water Supply Well
Uranium Federal Limit                                                                      Uranium Federal Limit
alpha radiation pCi/L                                                                              alpha radiation pCi/L
beta radiation pCi/L                                                                               beta radiation pCi/L
uranium pCi/L                                                                                      uranium pCi/L
0                                                                                               Jul-98    Nov-98    Feb-99   May-99     Aug-99       Dec-99   Mar-00     Jun-00   Oct-00
Jul-98      Nov-98     Feb-99     May-99      Aug-99     Dec-99       Mar-00   Jun-00
Alpha and beta radiation are indicators of radioactive contamination, analyzed along with uranium. The federal standard for
alpha radiation is 15 picocuries per liter (pCi/l). The alpha radiation found at the St. Charles County water plant’s treated
water has consistently been less than 1 pCi/l or non-detectable. The federal standard for beta radiation is 50 pCi/l. The
data for the plant’s beta concentration ranges form 3.1 to 5.3 pCi/l. Both of these results fall below the federal standard.
Soil Sampling                                                                                                 Conclusion
The Department of Natural Resources has also col-                                                             The Missouri Department of Natural Re-
lected random soil samples from the Chemical Plant and                                                        sources remains committed to monitoring the
neighboring properties as the Department of Energy has                                                        groundwater, surface water and soil around the
cleaned up impacted areas. Laboratory analysis show                                                           Weldon Spring site to ensure that the cleanup,
levels consistent with applicable cleanup criteria estab-                                                     which is nearing completion, is successful. We
lished by the site’s decision documents. The depart-                                                          believe that work that has been done to date by
ment’s Federal Facilities Section conducted additional                                                        the Department of Energy has been conducted
independent sampling following a statistical sampling                                                         in a safe and expeditious manner. The Depart-
protocol used on areas contaminated by radioactive ma-                                                        ment of Natural Resources has worked closely
terials. The area sampled had been cleaned up and con-                                                        with other local and state agencies as well as
firmed by the De-                                                                                             with local citizen groups in an effort to assure
partment of Energy                                                                                            that cleanup of the area is protective of human
as having met                                                                                                 health and the environment. Some contamina-
cleanup     criteria.                                                                                         tion will remain, although at levels currently
The Department of                                                                                             known to be safe based on present-day use. Ap-
Natural Resources’                                                                                            propriate institutional controls will be required to
independent sam-                                                                                              maintain a safe level of exposure. Long-term
pling found the De-                                                                                           monitoring and stewardship of the site are im-
partment of En-                                                                                               portant to maintaining that protectiveness.
ergy’s cleanup cri-
For more information please visit the Missouri
teria were met in
Soil sampling by Federal Facilities Section staff at the                                Department of Natural Resources website at
this area.            Weldon Spring site have found that the cleanup criteria
have been met .                                                          www.dnr.state.mo.us or contact our Weldon
Spring Project Field Office at (636) 441-8030.
Missouri Department of Natural Resources Information on Weldon Spring, The Missouri, missouri department, Missouri Department of Natural Resources, Jefferson City, kansas city, Weldon Spring, Chemical Plant, Drinking Water, solid waste
Spreadsheet - Missouri Department of Natural Resources - DNR
PUB2286 - Missouri Department of Natural Resources
Missouri Department of Natural Resources Division of Geology and