REP47880

• Permit No: M1977300
• IBM Index Class Name: Report
• Doc Date: 5/1/1980
• Doc Name: AMENDED APPLICATION FOR RADIOACTIVE MATERIAL LICENSE FOR ORE SORTING FACILITY
• Media Type: D
• Archive: No

•-

L.~W OFFIG ES
•
EDWARD J. McGRATH
Id^ FLOO0.
51 MON0.0E STREET
ROCKVILLE. MARYLAND 20850
(30q 7d0-06o0
April 17, 1980
Mr. Michael L, Brown
Health Physicist
Radiation and Hazardous
Control Division
Colorado Department of
Control Division
Colorado Department of
4210 East 11th Avenue
Denver, Colorado 60220
Re
Dear Mr. Brown:
Wastes
Health
Health
Cotter Corporation
License Application
Ore Sorter
APR l 1
Set forth below are the understandings reached at the conference
• held on April 10, 1980 between representatives of your officl~, the
U.S. NRC and Cotter Corporation, and the commitments undertaken by
the latter at that time, relating to amendment of the pendiml appli-
cation of Cotter Corporation fora radioactive materials license to
operate an ore sorter located at the Schwartzwalder Mine of (:otter
in Jefferson County, Colorado. The purpose of the conferencf~, and
the site visit which preceded it on April 9, 1980, was to rezich agree-
ment on the matter which Cotter will submit and the issues wf(ich will
be addressed in the amended license application. Based upon the
conference, and the correspondence which preceded it, Cotter proposes
to file an amended application containing information originallly sub-
mitted as supplemented and augmented by the following:
1. Since the mine waste storage area includes ore sorter reject
rock, the following inquiries will be made and the results included
in the amended license application:
A. Infiltration Rate Study of Mine Idaste and Ore Sorter Reject
(i) Review literature pertaining to infiltration,
porosity, permeability in alluvium. Given the
larger viod space in the waste area, the factors
See Section 2.2 derived from the literature for alluvium will tend
to be conservative due to the lesser contact time
between water and waste rock.