Laserfiche WebLink
Permit Application, Ezhibit 7-7, Surfaea water Hydrology Map and also the 1952 Seneca II <br />AHE) in April, 1952. Finally, discharge wlumes at the 003 site haw boon affactod by the • <br />reduction in diameter of ttte discharge culvert (36 inches to 6 inrhea) rhith occurred on <br />July 19, 1958. No comparison of this years' flora to prior yenta is preaentad since the <br />operation of the truck rash syetm tends to greatly influence the Slot conditions at Yond <br />003. Review of the TDS plot indicates en increasing trend. <br />Surface Aster Site Sw-52-3 (SSG3). This site monitors discharges from pre-SMCAA mining <br />areas before they enter Grasey Creek at s point just below Site Sw-52-2. This Bite tae <br />ra-established in Juna of this year. Not enough data has been collecteQ yet to detect any <br />trends. <br />Surface lister Sita Sfi-32-2 (39G2) . This site is the furthest dornstraam eurlaca rater <br />site in the Little Grassy and Grasey Creek 6rainagas prior to aziting the permit azea. <br />Thazefoxa, it is the most significant monitoring aita rith respect to shoring the <br />cvaailatiw effects of mining in this gran. Aaviar of the hydrograph of monthly floc <br />measurements again chore the third highest peak flora on record. Eevier of the TD9 plot <br />indicates an increa sing trend. <br /> <br />On page 7-262 of the Seneca II PEC, predictions of TDS values at this site were made. A <br />value of 1233 mg/1 was predicted in June, chile a value of 1490 mg/1 tae obeazved. A <br />value of 2341 mg/1 xae predicted in September, chile a value of 2020 mq/1 tae obearved. <br />Sorinca. <br />Spoil spring date may be found after the aurfaca rater data praaented in Appendiz D. <br />Spoil epxinq data provided era rater quality data for the year, historic floc <br />maasuremmta, end a I.CxESS plot of EC (electrical conductivity, corrected to 25° C, einca <br />10/1/89) values. In addition, a floc hydrograph and TDS LOTiE55 plot era pzovided for <br />Spoil Spring 1. This year, manltorinq of springs 1, 2, 3, end 5, end Spoil Spring 8 tee <br />discontinued (sea "introductron•'). <br />Spoil Springs 1 and 2. Hoth theca spoil springs era located above the NPDES 004 pond. <br />Spoil Spring 1 is a large spring that ras further developed and fitted rith a V-notch raft <br />by the USGS on September 5, 1987. Spoil Spring 2 is a small spring creak on reclaimed <br />land that flocs adjacent to Spoil Spring 1. • <br />t4 <br />