Laserfiche WebLink
• the operation of the truck wash system tends to greatly iaf lueace the £low <br />conditions at Pond 003. Review of the TDS Dlot indicates as increasing tread. <br />- Surface water Site SW-52-3 (SSG3). This Bite monitors discharges from Dre- <br />SMCRA miaiag areas before they enter Grassy Creek at a Doiat just below Site SfP- <br />62-2. This site was re-eatabliahed is June 1997. Not enough data has bees <br />collected yet to detect nqy treads. <br />- Surface Water Site SN-52-2 (SSG2). This site ie the £urthast downstream <br />surface water site is the Little Grassy sad Grassy Creek drainages prior to <br />exiting the Darmit area. Therefore, it ie the moat eignifieant monitoring site <br />pith respect to showing the cumulative effects of miaiag is this area. Review <br />of the TDS plot indicates a nearly level tread. <br />Oa yege 7-242 of the Seneca II PHC, predictions of TDS valves at this site were <br />made. A value of 1233 mg/1 was predicted is June, while a value of 1760 mg/1 <br />was observed. A value of 2341 mg/1 wag predicted Sa September, while a value of <br />• 3120 mg/1 was observed. It should be noted that the PHC predictions were based <br />oa long term average values. Individual monthly TDS measurements may ba <br />affected by annual chengee in climate (such ae the low eaowpack runoff sad flry <br />summer noted this year), and by the relative contribution of floor values from <br />Ponds 002 and 003 (ae affected by the truck wash system). Tha long term TD9 <br />trend for this site, ee stated in the previous Daregraph, 1e nearly level. <br />Springs. <br />9poi1 spring data may be found after the surface water data presented is <br />Appendix D. Spoil spring data provided are water quality data for the year, <br />historic flow measurements, and a LOWESS plot of EC (electrical conductivity, <br />corrected to 25° C, niece 10/i/B9) values. Ia addition, a flow hydrograDh ie <br />provided for Spoil Spring 1. <br /> - Spoil Spriage 1 sad a. such these spoil aDriage ate located above the NPDES <br /> 004 pond. Spoil Spring 1 is a large spring that was further developed sad <br />• fitted with a V-notch weir by the uSG9 oa September 8, 1987. Its EC ylot <br /> indicates a decreasing trend. Spoil Spring 2 ie a small spring creek oa <br />17 <br />