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HYDRO27746
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HYDRO27746
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Last modified
8/24/2016 8:47:08 PM
Creation date
11/20/2007 8:24:31 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977410
IBM Index Class Name
Hydrology
Doc Name
REFERENCES
Media Type
D
Archive
No
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COLORADO DEPARTMENT OF~ALTH, Water Quality Control Die ion <br />Permit Number CO-0032751 Page 3 . <br />APPENDIX B1 <br /> Cros• Mine Discharge Nonitorinq Aeport Data: Discharge Point 001 <br /> Avq/Max Avg Avq Avg Avq Avq Avq Min/Hex <br />Month Flow TSS Cd Cu Pb Hq Zn pH <br /> onm:(MGD) ~/1 me/1 me/1 me/1 ~} ~. e.u. <br /> <br />4/90 37 (.053/.072) 11 0.0025 0.006 0.054 80.0002 0.20 7.41/7.75 <br />5/90 82;(0.118) 6 0.0030 0.004 0.021 0.0003 0.22 6.95/7.73 <br />6/90 80;(0.115) XS 0.006 80.03 f A0.005 80.0002 0.3 6.95/7.65 <br />7/90 No Sample Taken (No Dis charge following 7-2-90) 7.25/7.25 <br />8/90 No Discharge <br />9/90 33;(0.076) RS 0.005 0.006 0.01 80.0002 0.4 7.3 /7.86 <br />10/90 32;(0.045) RS 0.002 80.005 80.005 80.0002 0.1 7.3 /7.86 <br />11/90 (0.039) RS 0.0021 80.005 80.005 80.0002 0.15 7.25/8.2 <br />1/91 (0.028) RS 0.0037 80.005 0.008 80.0002 0.22 7.4 /8.38 <br />2/91 (0.027) RS 0.0069 0.005 80.005 80.0002 0.22 7.35/8.12 <br />Previous Permit Limits: 30-day average on top row; daily maximum on bottom row <br /> NA 20 0.0004 0.005 0.004 0.00005 0.05 6.5 /9.0 <br /> NA 30 0.0008 0.010 0.008 0.00010 0.10 6.5 /9.0 <br />R = Les^ than Avg = Average Hex = Maximum NA = Not applicable <br />• = During January 1990, the discharge flow indicated occurred for only 3 <br />days; for the other days in January, no discharge occurred. During February <br />1990, a flow of 152 qpm occurred for 19 days, and 22 qpm occurred for 7 days. <br />/ Excluded from mean calculation determination <br />Nost of the reported oil and grease concentrations were usually ae "none" (not <br />visible) or 'ND" (less than 1 mq/1) for both average and maximum values during <br />the above period. <br />Mean value far 1/87 through 7/90 (when discharging): <br />42.7 2.75 0.0050 0.011 0.022 0.000094 0.36 6.3/ 8.9 <br />Flow TSS Cd Cu Pb Hq Zn pH, .range <br />Mean value for 1/87 through 12/87 (when discharging prior to new tr~aatment <br />system being installed): <br />18.3 3.25 0.0051 0.013 0.018 0.00002 0.42 6.8/ 8.9 <br />(range) <br />Mean value for 1/88 through 7/90 (when discharging after new treatm~ant system <br />was installed): <br />48.5 2.6 0.0050 0.011 0.024 0.00012 0.34 6.8/ 8.9 <br />(range) <br />Most of the average repotted values (for metals and TSS) in Appendi:c B1 were <br />also the daily maximum reported value, except for certain months (2•-88, 5-88, <br />and 6-88) when two samples were reported for cadmium (0.0049, 0.0040; 0.0094, <br />0.0040; 0.005, 0.009 mq/1), lead (0.039, 0.020; 0.012, 0.04 mq/1), :and zinc <br />(0.32, 0.40; 0.53, 0.34; 0.31, 0.30 mq/1). The earlier reported va:LUes for <br />the metals may have been for either as total or total recoverable, I~ut later <br />reports were ae total recoverable for Cd, Cu, Pb, and Zn. <br />
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