PERMFILE109027

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 3/16/2001
• Section_Exhibit Name: Appendix W 2000 Report Narrative
• Media Type: D
• Archive: No

NARRATIVE
• cI.>FNT
Trapper Mining, Inc. Craig Mine, P.O. l3ox 187, Craig, CO 81626-0187
• DATE OF REPORT
May 15, 2000
• PERMIT AND SAMPLE INFORMATION
NPDES permit #:
Type of sample:
Date and time of samples};
Date and time of test start:
Dilution water:
• TEST ORGANISMS
Ceriodalohnra dubia
Fathead Minnow
• PROCEDURE
CO-0032115
Effluent Grab
05/08/00 0830
05/09/001115
Reconstituted Laboratory Water
Age: <24 hrs
Age: 12 days
Acute, 48 and 96 hour bioassays as outlined in the most recent protocols specified by the
Water Quality Control Division ofthe Colorado Department ofHeahh (1998).
• DISCUSSION
Trapper Mining's Craig Mme outfa11011 effluent was not aartely toxic to either species
tested. Therefore, Trapper Mining, Inc. is arrenrly in compliance with the awte WET
portion of its Colorado State Discharge Permit for the second quarter of 2000.
COMMERCIAL TESTING 8, ENGINEERING CO.
-~ L?~
~nginal Watermarked For Your Protection