HYDRO28644

• Permit No: C1980001
• IBM Index Class Name: Hydrology
• Doc Date: 8/21/2003
• Doc Name: July 2003 DMRs & 3rd Q 2003 WET Tests
• From: WWC Engineering
• To: DMG
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

ADDRESS ALL I:ORRESPONDENCE TtJ:
COMMERCIAL TESTING 8 ENGINEERING CO.
' 4665 PARIS STREET, SUITE &200
DENVER, CO 80239
TEL: [phone]
COLORADO -CDPS WET TEST REPORT FORM -CHRONIC r~x. ~~~ ~~~
~;
PERIVIITTEE: P & M Edna Mine
TYPE TEST: ROUTINE: XX
CDPS NO. CO-0032638
ACCELERATED:-
OUTFALL:004
TEST SPECIES: C. dubia
TEST RESULTS LETHALITY REPRODUCTION STATISTICAL METHOD
Concentration with Statistical Difference >100% >100% Fisher/Steel's Man -One
Pass/Fail Pass N/A
I 5 Point Estimate >100% 64.3% Bootstra
Pass/Fail Pass N/A
TEST TIME & DATE START 0950 AM 07/15/03 END 1245 PM 07/23/03
DILUTION % EFFLUENT
MEASUREMENTS CONTROL 12.5% 28.6% 50% 75% 100%
Da 1 % Survival 100 100 100 100 100 100
Da 2 100 100 100 100 100 100
Da 3 100 100 100 100 100 100
Da 4 100 100 100 100 - 100 100
Da 5 100 100 100 100 100 100
Da 6 100 100 100 100 100. 100
Da 7 90 90 100 100 100 100

Mean.3 Brood Total 13.0 11.8 9.8 11.5 7.9 7.0

H MaximuMMinimum 8.7/8.2 8.6/8.2 8.517.8 8.48.6 8,3/7.4 8.3/6.7
RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI- (mgll): <0.1
HARDNESS (moA): REC'V WATER: EFFLUENT: 3213 RECON WATER: 117
ALKALINITY (mo/Il: REC'V WATER: EFFLUENT: 62 RECON WATER: 93
TOTAL AMMONIA (ma/Il: INITIAL 100%: _ <1.0 FINAL 100°/a: <1,0
WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DNlSION GUIDELINES? NO
If NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: Due to a shipping error: kit #3 samples
arrived two days late. A portion of kit #2 sample was used for Dav 5 renewals.
LABORATORY: SGS MINERALS SERVICES DIVISION ANALYST:
Commercial Testing & Fngineerirgtu. I Mirrerals Services -Corporate Office
t919 S. HighlanC Ave., Suit° 2106, LanhaN, IL 60149 , tt63%953-9300 1{63°195,4-93°8 v1ww.sgsmm