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PERMFILE103819
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PERMFILE103819
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Entry Properties
Last modified
8/24/2016 9:57:15 PM
Creation date
11/24/2007 10:28:36 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980001
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
3.7 APPENDIX 3.7-D Part 2
Media Type
D
Archive
No
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<br />Rationale, Page 3 <br />~Pi[[sUurgh and Midway Coal <br />PERftll' NUCIBER: CO-0032638 <br />• <br />B, EFFLUENT LIMI1ATlONS, RATID~+A LE AND ffON1TORING FREQUENCIES <br />Table 2 below denotes proposed effluent limitations and [he <br />rationale which determined the limitations. <br />Table 2 <br />Monitoring <br />Parameter Limitation Rationale Frequency <br />pH (s.u.) 6.5-9.0 e/ WQS Weekly <br />Oil and Grease (mg/1) 10.0 e/ SES Weekly <br />Total Suspended 35/IU f/ BPT Monthly <br />Solids (mg/1) <br />Total Iron (mg/1) 3.5/7.D f/ BAT Monthly <br />Settleable Solids 0.5 g/ BAT Weekly <br />• (ml/1) <br />Flow (I•iGD) Monitoring only N/A Weekly <br />Salinity Monitoring only N/A Quarterly h/ <br />e/ This limitation shall apply a[ all times <br />f/ This limitation sha21 apply to discharges during perior~'~s of <br />no precipitation and may apply to discharges during periods <br />of precipitation. <br />p~/ This limitation may apply to discharges during periods oY <br />precipitation less than or equal to the 10-year, 24-hour <br />even[ for this facility. <br />h/ In compliance wiCh [he "Regu~tions for Implementation o1 Che Colorado River <br />Salinity Standards Through Che NPDES Perini[ Program", the permittee shall <br />sample for salinity in the wastewater effluent on n monthly basis until six <br />samples have been analyzed. Thereafter, monitoring shall conCinue on a <br />guartcrly basis. The Division will review the Sirst six months of data and <br />determine if a waiver of numeric limitations can be granted ba~:ed on the <br />. salt load to the river being less than cne ton/day (or 3S0 tons/year). if <br />a waiver is not granted, Clio pcrmittee has an additional six months co <br />submit a report in accuraance with the Salinity Regulations, addressing <br />= economic feasability of salt-removal. <br />
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