ML20217P885
| ML20217P885 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 02/19/1998 |
| From: | Soong S NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Sharkey R ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY |
| References | |
| TAC-L31022, NUDOCS 9803110188 | |
| Download: ML20217P885 (5) | |
Text
,
February 19, 1998 e
a.
Mr. Robert W. Sharkey, Director l
4 Regulatory Affairs l
Combustion Engineering. Inc.
3300 State Road P l
Hematite. MO 63047 i
SUBJECT:
Hydrogeologic Investigation (TAC NO. L31022)
Dear Mr. Sharkey:
This refers to your application dated October 21, 1997. requesting approval of L
your "Hydrogeologic Investigation and Groundwater / Surface Water Monitoring Work Plan for the-Combustion Engineering Hematite, Missouri Site."
o Our review of your application has identified additional information that is needed before final action can be taken on your request. The additional information, specified in the enclosure should be provided within 30 days of the date of this letter.
Please reference the above TAC No in future correspondence related to this reuqest.
l If you'have any questions regarding this matter, please contact me at (301) l 415-8155.
i l-Sincerely,
/d Sean Soong Licensing Section 2
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Licensing Branch Division of Fuel Cycle Safety and Safeguards. NMSS N
Docket 70-36 License SNM-33 NRC Fil.E CEUEB COPY
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February 19, 1998 Mr. Robert W. Sharkey, Director Regulatory Affai.4 Combustion Engineering, Inc.
3300 State Road P Hematite MO 63047
SUBJECT:
Hydrogeologic Investigation (TAC NO. L31022)
Dear Mr. Sharkey:
This refers to your application dated October 21, 1997, requesting approval of your "Hydrogeologic Investigation and Groundwater / Surface Water Monitoring Work Plan for the Combustion Engineering, Hematite, Missouri Site."
Our review of your application has identified additional information that is j
needed before final action can be taken on your request. The additional information, specified in the enclosure should be provided within 30 days of J
the date of this letter.
Please reference the above TAC No. in future correspondence related to this reuqest.
If you have any questions regarding this matter, please contact me at (301) 415-8155.
Sincerely,
'f
~-
ean Soong Licensing Section 2 Licensing Branch Division of Fuel Cycle Safety and Safeguards, NMSS Docket 70-36 License SNM-33
Enclosure:
As stated i
l l
l
s Request for Additional Information Application Dated Combustion Engineering. Inc.
Docket 70-36 P1 ease revise the "Hydrogeologic Investigation and Groundwater / Surface Water Monitoring Work Plan for the Combustion Engineering. Hematite. Missouri Site."
October - 1997. Revision 0 to reflect the following comments.
1.
Add the following subsections to Section 1.0.
. History of Activities at tha Site - This subsection is needed to support logical placement of sampling locations.
Include summaries of the following items:
(1) NUREG/CR-3387 (Radiological Survey of the Combustion Engineering Burial Site. Hematite. Missouri, July 1983):
(2) Regional and Local Geologic Summary at the Combustion
{
Engineering. Hematite. Missouri Plant. May 30, 1997. Gateway Environmental Associates. Inc.: and (3) other prior surface and subsurface physical and analytical data.
Highlight any data quality concerns.
. Sources of Contamination - Include in this subsection the expected physical / chemical properties of the radioactive and hazardous materials involved (i.e.. contaminants of concern) from the burial area. evaporation ponds, and former ring storage area.
- Reaulatory Reauirements of Site Characterization - Describe in this subsection the governing regulation (s) of this site characterization and dose assessment.
. Concectual Model of the Site - Section 1.0. 2nd paragraph states the
... purpose of this Ground Water Monitoring Plan (GWMP) is to...obtain site specific data necessary for computer modeling of the site." Discuss the model utilized and list the site-specific input parameters required for the model. This will provide the basis for data collection activities.
Describe in the GWMP why groundwater is the only exposure pathway of concern because the regulations require all credible pathways be evaluated.
ENCLOSURE
2 2.
Section 3.0, page 5: Commit to using the results of the geophysical investigation to locate monitoring wells in positions near the burial sites to detect leachate immediately downgradient. Commit to describing in the hydrogeologic report the limitations of geophysics, standard operating procedures empl yed, survey design quality assurance data o
reduction / interpretation, and presentation of results (e.g., traverse sections, fixed positions. labeled interpretations, surface landmarks, areas of poor data quality, etc.).
3.
Section 4.0. page 6: Add a " background" subsection to discuss the statistical approach regarding the estimation of soil, groundwater, and surface water background radioactivity at the site.
Determine background concentrations from measurements in soil samples taken at several nearby off-site locations where contamination is not likely.
4.
Section 4.1.1, page 6:
Present a summary table of concentrations of volatile organic compounds detected by Missouri Department of Natural Resources and radionuclides detected by others in the groundwater to support monitoring locations and sampling parameters.
5.
Section 4.2, page 8:
Include a general hydrostratigraphic cross section (or sections) of the site from the existing subsurface data to support the proposed monitoring well locations.
l 6.
Section 4.3. 1st paragraph:
Commit to geologically logging all monitoring wells because of potential horizontal and vertical heterogeneities.
Include in the text a description of the analysis to be performed on the Jefferson City Dolomite borehole and the core.
7.
Table 1. Section 4.3. page 9:
Revise Figure 2 to contain a north arrow.
labeled site features, and estimated groundwater flow direct'
., to reconcile the direction of each monitoring well relative to the burial area. Without such a figure, it is very difficult to understand the proposed monitoring well rationale.
Based on Figure 12 (Regional and Local Geologic Summary. Gateway, May 30, 1997), WS-22 & WS-23 are not upgradient of the burial area.
8.
Table 1. Section 4.3. page 9:
Use the operational history and construction summury of the " evaporation ponds" and "former ring storage area" to evaluate those areas as potential sources of surface and/or subsurface contamination because monitoring wells are proposed near these areas.
n 3-9.
Section 4.4.. page 11:
Commit to collecting discrete samples from a short interval to provide a vertical contaminant profile to be used in RESRAD.
10.
Section 4.4.4. page 11 and Section 7.1.1.:
If any radioactive screenings are elevated (i.e,. above background), commit to conducting specific isotopic analysis on the sample (s).
RESRAD requires, as input l
parameters, initial concentrations of principal radionuclides in order
-to have valid dose calculations.
11.
' Add a section that discusses how the " Source Term" will be calculated.
RESRAD requires a source analysis to determine the rate at which residual _ radioactivity is released into the environment.
The rate is determined by the geometry of the contaminated zone the concentrations of the radionuclides present.-the ingrowth and decay rates of the radionuclides, and the' removal rate by erosion.
1 i
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