1987-12-01_PERMIT FILE - C1981017 ‎(169)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Sediment Pond Design Certifications
• Section_Exhibit Name: Chapter II Appendix II-B-7 Attachment 6
• Media Type: D
• Archive: No

II chen and ;associates
CONSULTING GEOTECHNICAL ENGINEERS
ii
5080 RD.154 GLENWOOD SPRINGS.COLORADO 81601 303/945-7458
October 12 1984
Subject: Observation of Fill Placement,
Refuse Sediment Pond. Sutey
Property, Mid Continent
Redstone Mine, Garfield
County, CO
Job No. 4 410 84
Schmueser & Associates, Inc.
1512 Grand Ave. , #210
Glenwood Springs, CO 81601
Attn: Mr. Larry Schmueser, Jr.
Gentlemen:
As requested, Chen & Associates conducted compaction testing at the
subject site during the period of October 2 through 8, 1984. A total of
22 in-place density tests were taken during this 5 day period. The
• results are presented in Daily Reports 1 through 5 attached. Additionally,
on-site fill material was sampled for a moisture-density relationship
determination in accordance with ASTM requirements. The results are
shown on Figure 1.
Based on our test results, all areas tested meet the minimum compaction
requirements of 95% standard Proctor density as outlined in the project
specifications.
We are available for further testing upon notification. In the
meantime, if you have any questions, please call.
Sincerely,
CHEN AND ASSOCIATES, INC.
By
Hans Froeschle
HF/sb
II
OFFICES: GASPER•COLORADO SPRINGS•DENVER•SALT LAKE CITY