1992-08-07_REVISION - M1988112 ‎(2)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 8/7/1992
• Doc Name: MODIFICATIONS TO EXISTING GROUND WATER MONITORING SYSTEM SAN LUIS GOLD PROJECT COSTILLA COUNTY COLO
• Type & Sequence: TR8
• Media Type: D
• Archive: No

TAHLE 4
sIIMMARY OF CYANIDE ANALYSES FROM
MONITORING WELLS BELOW TAILINGS FACILITY
Date Time Elapsed Time~~ Concentration (ma/LI of
Well 3amoled Samuled Into Pump Test (min) Free CN Total CN"
M-9 7/25/92 2200 8.0 <0.02 <0.02
7/26/92 0600 16.0 <0.02 <0.02
1400 24.0 <0.02 <0.02
M-12 7/28/92 0000 8.0 <0.02 <0.02
0800 16.0 <0.02 <0.02
1405 22.1 <0.02 <0.02
M-13 7/26/92 1415 4.1 0.02Z~ <0.02
1515 5.1 <0.02 <0.02
1615 6.1 <0.02 <0.02
1) All tests were conducted as constant discharge tests.
_ 2) Method does not distill sample, sample is susceptible to interferences. WAD cyanide was
also run on this sample to confirm no cyanide was present, and Core Laboratories
reported a concentration of <0.02 mg/L.
•
•