HYDRO26939

• Permit No: C1981033
• IBM Index Class Name: Hydrology
• Doc Date: 7/12/2004
• Doc Name: 1st Quarter 2004 DMRs
• To: DMG
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

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ADDRESS ALL CORRESPONDENCE TO:
COMMERCIAL TESTING & ENGINEERING CO.
4665 PARIS STREET, SUITE B-200
DENVER, CO 80239
TEL: [phone]
COLORADO -CDPS WET TEST REPORT FORM -ACUTE FAX: [phone]
PERMITTEE: Bear Coal Company CDPS NO.: CO-0044377 OUTFACE: 001
TYPE TEST: ROUTINE: XX ACCELERATED: SPECIES: C. dubia
TEST RESULTS: LCD: >75% STATISTICAL METHOD: Binomial
TEST TIME & DATE: BEGIN: 1240 PM 02/17/04 END: 1150 AM 02/19/04
DILUTIONS (% EFFLUENT)
MEASUREMENTS 0% 1.7% 25% 50% 75% 100%
# START OF TEST: 20 20 20 20 20 20
# ALIVE AFTER 24 HRS: 20 20 20 20 20 20
# ALIVE AFTER 48 HRS: 20 20 20 20 20 10
# ALIVE AFTER 72 HRS:
# ALIVE AFTER 96 HRS:
RECEIVING WATER USED FOR DILUTION? NO
HARDNESS (mg/l): RECEIVING WATER:
ALKALINITY (mg/1): RECEIVING WATER:
pH: INITIAL: CONTROL
FINAL: CONTROL
TOTAL RESIDUAL CI' (mg/I): NA
EFFLUENT: 350 RECON WATER: 125
EFFLUENT: 1895 RECON WATER: 85
7.7 100% EFFLUENT 8.6
8.4 100% EFFLUENT 9.1
TOTAL AMMONIA AS N (mg/I): INITIAL 100%: NA FINAL 100%: NA
WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES
IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS:
LABORATORY: SGS MINERALS SERVICES DIVISION ANALYST:
L~J t'' Lf
COMMENTS: Effluent received discolored~ark_amber). The ammonia and chlorine colo6(meters were
not useful due to effluent discoloration.
04/08/03
/ Commwcial Tesung & Engineenng Co Minerals Services- Corporate Office
7919 S. Highland Ave.. Suite 2106, L°m6ard, IL 60746 tf6301353-9300 f (630j 953-9306 wwwsgsc°m