ML20211E132
| ML20211E132 | |
| Person / Time | |
|---|---|
| Issue date: | 10/08/1986 |
| From: | Hawkins E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Gnugnoli G NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| REF-WM-69 NUDOCS 8610220357 | |
| Download: ML20211E132 (3) | |
Text
DISTRIBUTION 7
Docket File WM-69 PDR/DCSL DBangart, RIV WM-69/ROG/86/10/02/0 RGonzales DGillen, WMLU LLW Branch, WMLU URF0 r/f OCT 0 81985 URF0:ROG Docket No. WM-69 MEMORANDUM FOR:
Georgio N. Gnugnoli Low Level Waste & Uranium Re::overy Projects Branch Office of Waste Management FROM:
Edward F. Hawkins, Chief Licensing Branch 1 N
Uranium Recovery Field Office, Region IV
SUBJECT:
MAYBELL DRAFT CADSAR The attached comments on the Maybell draft CADSAR were recently received from the Colorado Department of Health. Since Maybell is the responsibility of NMSS:WM, I am forwarding these to you.
MI p
Edward F. Hawkins, Chief Licensing Branch 1 Uranium Recovery Field Office Region IV F
Attachment:
As stated J
8610220357 861008 PDR WASTE WM-69 PDR URFb l
0FC :
..... :.U.R.F.0,
>i.AME : R.G.h..
..e.s./.19 N
- __ _.H.aw ki n sE.._____::__...____...:__..________:____________:___...._
g DATE :86/10/02
$d/1)- f 7
.o Cot r
A
/==
T M/.D. 7 f,
c l D C
COLORADO DEPARTMENT OF HEALTH Rchard D. tamm h j[
Thomas M. Vernon. M.D.
Governor 1876 Executive Director September 9, 1986 8
'3 g
RGC6tyt._
SEP151986m Mr. John G. Themelis, Project Manager e
M Nucceer Uranium Mill Tailings Remedial Action Project ce Docurfto A
U.S. Department of Energy 9,
{
tsswac eston Mc6 %"
5301 Central Avenue, N.E. - Suite 1700 SEP 151986
- s.
w' -
\\}-
Albuquerque, N.M.
87115
?
RE:
Maybe11 Site Draft CADSAR MML SECTM 00tKET ttERK 9
,.y 8
Dear John:
in i
Re Colorado Department of Health has reviewed the Draft CADSAR for the Maybe11, Colorado site, To summarize our comments, which are enclosed as an attachment, stabilization of the tailings in place may be a viable disposal option.
It should be demonstrated, however, that migration of contaminants from the stabilized pile materials will not significantly degrade ground water quality over the design life of the respository.
his ground water is used for agricultural and some domestic purposes in the Maybe11 arta.
Present ground water conditions downgradient of the tailings pile and around 3
the designated site should be better characterized and the ' rate (s) and flow r
direction (s) of any pile-derived plume contaminant (s) quantified.
The newly-e s tablished ground water monitoring wells should provide useful information in this regard.
If the above few, but key concerns are addressed by the DOE / TAC in further d
studies and investigations of the Maybe11 site, and SIP can be shown to provide reasonable assurance that the EPA criteria will be satisfied, then the State will concur in this site selection option and disposal alternative.
Should you have any questions regarding our review, please call Jon luellen of my staff or me at (303) 320-8333.
Sincerely, a
JWW Paul Ferraro Program Manager, UMTRAP PF/ms Enclosure cc w/ enclosure:
Edward llawkins, NRC Marc Nelson, TAC W.R. Junge CCS gg Albert llazle, RCD
/
l
1
- s Comments on Draft Comparative Analysis of Disposal Site Alternative Report (CADSAR) for the UMTRA Project Maybe11 site ~
June, 1986.
Comments No.
_Page Section/ Paragraph Comment 1
5 3.1.1/2 A plan view of the larger site area showing the surrounding open pit mines, the heap leach area, and the designated Title I site might enhance this document.
2 5
3.1.2/1 Should add to the list of contaminated materials
" soils beneath the tailings."
3 9
Table 3.2 Under ground water conditions, second sentence, recommend rephrasing as:
n "There is evidence to suggest that a neutralization zone exists three to four feet.below.
Additional ground wcter monitoring will better define groundwater conditions in the area of the tailings pile...".
' Conce rn Column ' :
"Possible". We request that we be sent a copy of the referenced DOE 1982 report UMTRA-SNL/74-4244 for information and review purposes.
3*
4 14 4.1/1 Recommend rephrasing as:
" Stabilization of the tailings in place may be a viable option at this site."
l 5
16 5.4/1 The possible problem of migration of contaminants from the tailings pile through ground water needs to be considered.
The proposed new monitoring wells will help better determine ground water quality downgradient of the pile.
For this purpose, it may also be beneficial to install one monitoring well to the south of the Robb Pit overburden pile and west of the tailings pile.
There is some concern for groundwater contamination at this site as the Browns Park Formation is an aquifer and ground water in the area is used for agricultural and some domestic purposes.
t a
4