ML20137W032
| ML20137W032 | |
| Person / Time | |
|---|---|
| Issue date: | 04/02/1997 |
| From: | Bangart R NRC OFFICE OF STATE PROGRAMS (OSP) |
| To: | Flater D IOWA, STATE OF |
| Shared Package | |
| ML20137W036 | List: |
| References | |
| NUDOCS 9704180015 | |
| Download: ML20137W032 (6) | |
Text
l l / ,
APR - 21997 Mr. Donald A. Flater, Chief Bureau of Radiological Health '
lowa Department of Public Health Lucas State Office Building Des Moines, IA 50319
Dear Mr. Flater:
I 1
This letter is in response to your letter dated February 5,1997 in which you requested l l assistance regarding DOE's proposed remediation at the Ames Laboratory. The specific l issue in your letter was the DOE use of " natural attenuation" as the remedial solution for I the uranium contamination in the groundwater at the site. l l
Since uranium chemically is an inorganic compound, the term " natural attenuation" would I refer to the geophysical / chemical processes (adsorption; absorption; oxidation / reduction / precipitation) that the contaminated water would go through as it flows through the site geology. The geology will act as an ion-exchange column selectively removing certain dissolved constituents. This process will, over time, filter the water.
This process (sometimes called natural flushing) is being proposed by DOE for groundwater remediation in the Title 1 program under the UMTRCA NRC considers this approach acceptable if the ground use is controlled until the groundwater has reached levels in the EPA cleanup standards (40 CFR 192). Although the Ames Laboratory remediation is not covered by these standards, a similar approach appears reasonable.
If you have any questions on this response, please call me at (301) 415-3340 or Dennis Sollenberger at (301) 415 2819 Sincerely, OriginalSigned By RICHARD L. BANGART 17Oi6O Richard L. Bangart, Director ;
Office of State Programs Distribution:
DIR RF (7S-28) DCD (SP07) I SDroggitis PDR (YESf) lowa File DOCUMENT NAME: G:\7S28.DMS *See previous concurrence.
Ta receive e copy of this document. Indicate in the box: 'C' = Copy without attachment / enclosure *E' = Copy with attachment! enclosure *N* = No copy l OFFICE OSP OSP:DD l NMSS:DWM l OSPlpp l NAME DSollenberger:gd PHLohaus JHolonich RLBanVaft DATE 03/25/97* 03/25/97* 04/01/97* 04/($/97 OSP FILE CODE: SP-AG-9
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9704180015 970402 PDR STPRG ESGIA PDR l
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Mr. Donald A. Flater, Chief Bureau of Radiological Health lowa Department of Public Health Lucas State Office Building .
Des Moines, lA 50319
Dear Mr. Flater:
This letter is in response to your letter dated February 5,1997 in which you requested -
assistance regarding DOE's proposed remediation' at the Ames Laboratory. The specific issue in your letter was the DOE use of " natural / attenuation" as the remedial solution for the uranium contamination in the groundwate at the site.
Since uranium chemically is an inorganic compound the term " natural attenuation" would refer to the geophysical / chemical processesj (adsorption; absorption; oxidation / reduction / precipitation) that the contaminated water would go through as it flows -
through the site geology.' The geology wiy act as an ion-exchange column selectively removing certain dissolved constituents. This process will, over time, filter the water. l This process (sometimes called natural ushing) is being proposed by DOE for groundwater l remediation in the Title 1 program und the UMTRCA. NRC considers this approach acceptable if the ground use is controll d until the groundwater has reached levels in the EPA cleanup standards (40 CFR 192). Although the Ames Laboratory remediation is not covered by these standards, a similar [pproach appears reasonable. J I
If you have any questions on this response, please call me at (301) 415-3340 or Dennis Sollenberger at (301) 415-2819 l Sincerely, Richard L. Bangart, Director Office of State Programs Distribution:
SDroggitis PDR (YESf) lowa File l
DOCUMENT NAME: G:\7S28.DMS 'See previous concurrence. !
Ta resolve e copy of this document, indicate be the bon: 'C' = Copy without ettechment/ enclosure *E' = Copy with attachment / enclosure 'N' = No copy l OFFICE OSP l OSf:DD l NMSSqWM l OSP:D l l l l
[ NAME DSollenberger:gd PHLphaus JHolog RLBangart i
- DATE 03/25/97* 03/25/97* -OM /97. 03/ /97 k 5 OSP FILE C. ODE
- SP-AG-O +
1 I
l
Mr. Donald A. Flater, Chief Bureau of Radiological Health lowa Department of Public Healt i Lucas State Office Building Des Moines, lA 50319
Dear Mr. Flater:
\
This letter is in response to your lette(dated February 5,1997 in which you requested l
l assistance regarding DOE's proposed 1,emediation at the Ames Laboratory. The specific issue in your letter was the DOE use ofg" natural attenuation" as the remedial solution for l the uranium contamination in the ground, water at the site. l l
Since uranium chemically is an inorganic \
compound the term " natural attenuation" would refer to the geophysical / chemical processks (adsorption; absorption; l oxidation / reduction / precipitation) that the dontaminated water would go through as it flows through the site geology. The geology will het as an ion-exchange column selectively l removing certain dissolved constituents. ThTy process will, over time, filter the water. l This process (sometimes called natural g flushin\) is being proposed by DOE for g water remediation in the Title 1 program under ghe UMTRCA. NRC considers this approach I acceptable if the ground use is controlled until the groundwater has reached levels in the EPA cleanup standards (40 CFR 192). Although he Ames Laboratory remediation is not l covered by these standards, a similar approach aphears reasonable.
l
\
If you have any questions on this response, please call me at (301) 415-3340 or Dennis l
l Sollenberger at (301) 415-2819 '
k Sincerely, 1
1 Richard L. Bangar , Director l Office of State Pro rams Distribation:
DIR RF (?S-28) DCD (SP07)
SDrogg;us PDR (YESf) i Iowa Fh DOCUMENT NAME: G S28.DMS Ta trcelve a copy of this do k d,icate in the boy j'k' Copy without attachment / enclosure *E' = Copy with a achment/ enclosure "N* = No copy OFFICE Op M Q Og@ l NMSS:DWM OSP:D l 1 l 1 NAME DSollenberger:gd PHLoha'us JHolonich RLBangart \
DATE 03/ld /97 03/7f/97 03/ /97 03/ /97 \
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UNITED STATES NUCLEAR REGULATORY COMMISSION !
'f WASHINGTON, D.C. 20666-0001
\ %,/ April 2, 1997 Mr. Donald A. Flater, Chief Bureau of Radiological Health lowa Department of Public Health Lucas State Office Building Des Moines, IA 50319 )
Dear Mr. Flater:
This letter is in response to your letter dated February 5,1997 in which you requested assistance regarding DOE's proposed remediation at the Ames Laboratory. The specific 1 issue in your letter was the DOE use of " natural attenuation" as the remedial solution for the uranium contamination in the groundwater at the site.
Since uranium chemically is an inorganic compound, the term " natural attenuation" would refer to the geophysical / chemical processes (adsorption; absorption; oxidation / reduction / precipitation) that the contaminated water would go through as it flows through the site geology. The geology will act as an ion-exchange column selectively removing certain dissolved constituents. This process will, over time, filter the water.
This process (sometimes called natural flushing) is being proposed by DOE for groundwater remediation in the Title 1 program under the UMTRCA. NRC considers this approach ;
acceptable if the ground use is controlled until the groundwater has reached levels in the l EPA cleanup standards (40 CFR 192). Although the Ames Laboratory remediation is not covered by these standards, a similar approach appears reasonable.
If you have any questions on this response, please call me at (301) 415 3340 or Dennis Sollenberger at (301) 415-2819 Sincerely, n
C \ $4 , WM Richard L. Bangart, Director Office of State Programs l
l
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_____ DATE- 02/05/97 MAIL CTRL._ ________ - 1997 TASK STARTED - 02/05/97 TASK DUE - / / TASK COMPLETED - / /
TASK DESCRIPTION - 2/5/97 LTR - DECOMMISSIONING A SITE
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i lowa Department of Public Health Division;of Health Protection- l Bureau of Radiological Health O. Lucas State Office Building
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l Des Moines, Iowa 50319 i
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