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2014-05-16_HYDROLOGY - C1981025
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2014-05-16_HYDROLOGY - C1981025
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Last modified
8/24/2016 5:44:04 PM
Creation date
6/12/2014 10:14:07 AM
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DRMS Permit Index
Permit No
C1981025
IBM Index Class Name
Hydrology
Doc Date
5/16/2014
Doc Name
Email Regarding WQA attached
From
WQCD
To
DRMS
Permit Index Doc Type
NPDES
Email Name
BFB
SB1
Media Type
D
Archive
No
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Minrec, Incorporated Water Quality Assessment <br />Table A -12 <br />SCT's and <br />CO- 0048233 <br />Pollutant <br />Q1 (cfs) <br />Q (cfs) <br />Q3 (cfs) <br />Ml <br />SCT <br />ADBAC <br />As, TR (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0.003 <br />0.0097 <br />As, Dis (µg /1) <br />0.1 <br />0.09 <br />0.19 <br />0 <br />51 <br />108 <br />Cd, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />2.6 <br />2.6 <br />2.7 <br />Cr+3, TR (µg /1) <br />0.1 <br />0.09 <br />0.19 <br />0 <br />7.5 <br />16 <br />Cu, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0.75 <br />2.3 <br />5.7 <br />Fe, TR (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />797 <br />827 <br />894 <br />Pb, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0.51 <br />1.6 <br />Mn, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />5.4 <br />277 <br />881 <br />Hg, Tot (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0* <br />0* <br />Ni, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />9.9 <br />32 <br />Se, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0.085 <br />0.76 <br />23 <br />Ag, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0.018 <br />0.058 <br />Zn, Dis (µg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />24 <br />77 <br />B, Tot (mg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0.11 <br />0.35 <br />Sulfide (mg /1) <br />0.2 <br />0.09 <br />0.29 <br />0 <br />0.0003 <br />0.00097 <br />*The TL replaces the WQBEL therefore the SCT and ADBAC are set equal to zero. <br />Concentration Significance Tests <br />The concentration significance determination test considers the cumulative impact of the discharges over <br />the baseline condition. In order to be insignificant, the new or increased discharge may not increase the <br />actual instream concentration by more than 15% of the available increment over the baseline condition. <br />The insignificant level is the ADBAC calculated in Table A -12 above. If the new WQBEL concentration <br />(or potentially the TL Conc for bioaccumulatives) is greater than the ADBAC, an AD limit would be <br />applied. This comparison is shown in Table A -13. <br />Table A -13 <br />Concentration Significance Test <br />Pollutant <br />New WQBEL <br />ADBAC <br />Concentration Test Result <br />As, TR (µg /1) <br />0.064 <br />0.0097 <br />Significant <br />As, Dis (µg /1) <br />718 <br />108 <br />Significant <br />Cd, Dis (µg /1) <br />9 <br />2.7 <br />Significant <br />Cr +3, TR (µg /1) <br />106 <br />16 <br />Significant <br />Cu, Dis (µg /1) <br />35 <br />5.7 <br />Significant <br />Fe, TR (µg /1) <br />1900 <br />894 <br />Significant <br />Pb, Dis (µg /1) <br />11 <br />1.6 <br />Significant <br />Mn, Dis (µg /1) <br />5833 <br />881 <br />Significant <br />Hg, Tot (µg /1) <br />0.032 <br />0* <br />Significant <br />Ni, Dis (µg /1) <br />213 <br />32 <br />Significant <br />Se, Dis (gg /1) <br />15 <br />2.3 <br />Significant <br />Ag, Dis (µg /1) <br />0.39 <br />0.058 <br />Significant <br />Zn, Dis (µg /1) <br />512 <br />77 <br />Significant <br />B, Tot (mg /1) <br />2.4 <br />0.35 <br />Significant <br />Sulfide (mg /1) <br />0.0064 <br />0.00097 <br />Significant <br />Appendix A (WQA v 7.0) Page 22 of 25 Last Revised Sept 14, 2009 /ES <br />
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