HYDRO30462

• Permit No: C1982056
• IBM Index Class Name: Hydrology
• Doc Date: 5/1/2000
• Doc Name: 1ST QTR 2000 DMR SUBMITTAL
• From: TWENTYMILE COAL CO
• To: WQCD
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

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COLORADO - CDPS WET TEST REPORT FORM -CHRONIC
PI~RM I"1TEE: Cyprus Twentymile Coal Co. CDPS NO. CO-003G684 OUTFACE: 001 A
TYPE TEST: ROUTINE: ?DC ACCELERATED:- TEST SPECIES: C. dubia
TEST RESULTS LETHALITY REPRODUCTION STATISTICAL METHOD
Concentration with Statistical DifTerence >]00% >]00% Fisher/Steel's
Pass/Fail Pass N/A
ICzs 78.1% 62.5% Boot
Pass/Fail Pass N/A
I TEST TIME & DATE I START 11145 AM 02/15/00 I END 11130 AM 02/23/00 I
DILUTION (% EFFLUENT)
MEASUREMENTS CONTROL 12.5°/. 21 •/. 50°/. 75% 100%
Da 1 % Survival 100 100 100 1 W 100 100
Da 2 100 100 100 100 100 100
Da 3 100 70 90 100 100 90
Da 4 100 70 80 100 90 70
Da 5 100 70 80 100 90 70
Da 6 90 70 80 100 70 50
Da 7 90 70 80 100 70 50

Mean 3 Brood Total 0.2 0.7 0.8 2.3 0.0 0.0

H aximum/I~nimum 8.5/7.8 8.5/8.0 8.5/8.0 8.4/7.9 8.2/7.8 8.1/7.7
RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI" (mg/I): <0. I
HARDNESS (mp~,l: REC'V WATER: EFFLUENf• 2325 RECON WATER:.___I08
ALKALINITY ~nl: REC'V WATER: EFFLUENT: 483 RECON WATER: 85
TOT. AMMONIA Lmg,L)' INITIAL 100%: <1.0 FINAL 100%: <1.0
WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? NO
IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: Due to a shipping error etlluent sam~es
that were scheduled to arrive on Satwdav. Feb. 19's. did not arrive until Mondav. Feb. 21'. The CT&E
bioassay laboratory was unable to perform a Day 5 effluent renewal on Sunday. Feb. 20°i.
LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~~ << ~- • ` =«~
COMMERCIAL TESTING 8 ENGINEERING CO.
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