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PERMIT: CO-0034142 <br />CDOH SITE #022, 1SP, Strip Pit <br />PERIOD: MAY 1998 <br />Parameter Date <br /> 5/4/98 5/11/98 5/18/98 5/27/98 <br /> L F L F <br />pH 8.46 8.53 8.42 8.49 <br />Conductivity (umhos/cm) 1732 1735 1510 1674 <br />TSS (mg/L) 6 8 <br />TDS (mg/L) <br />Oil & Grease (mg/L) NO NO NO NO <br />TR Fe (mg/L) 0.82 <br />TR Zn (mg/L) <0.01 <br />Depth of Flow (feet) 0.24 0.22 0.21 0.23 <br />Q (mgd), wk 0.0445 0.0358 0.0318 0.0400 <br />Q (mgd) a (2.4381 x H"2.5) x 0.6463 <br />90 deg. Notch weir <br />NOTES: <br />Parameter Min Max 30 Da Avcra e <br />pH 8.42 8.53 8.475 <br />Conductivity (umhos/cm) 1510 1735 1662.75 <br />TSS (mg/L) 6 8 7 <br />TDS (mg/L) 0 0 NDP//0! <br />Oil & Grease (mg/L) 0 0 0 <br />TR Fe (mg/L) 0.82 0.82 0.82 <br />TR Zn (mg/L) 0 0 0 <br />Depth of Flow (feet) 0.21 0.24 0.225 <br />m d , wk 0.0318 0.0445 0.0380 <br />2/24/98 <br />SSC H:Vv10NilORINN998 DMG'SEMPiRt~1SP.XLS <br />