Laserfiche WebLink
• NpDB9 Discharge Poia[ 003 (NPD8S3). Hydrogzaphs Draeented is Appendix 8 shot that floe <br />has Saczenasd at this vita slats SaDtambsr 18, 1984, than operation of the truck rash <br />facilities began- Nstar ie eiDhoaed from the Nedge Impoundment (NPDBS 001) Into a holding <br />pond. Ovarf for from the holding goad ie diverted into the ehoD ditch which flora into <br />NPD85 003. Nntar is pumped from the holding pond to the rne6 rack, draiaa into a settling <br />Dond, and then into the same shop ditch. Th1e operation hen increnaed the flor at NPD85 <br />003 rhils daereaeiaq [be flor at NPDSS 002. TYO other events that aftected the long-term <br />hydiograph include the divsralon away from NPD85 00] of runoff from nn ianctiva fly ash <br />pit (oparetad by the Hayden 5tntioa power Dlen[) is October, 1950r and the divaraioa arty <br />from NPD85 003 of runoff contained is the Northras[ Diversion Ditch (sea the Ssnece II <br />Permit Application, 8xhibit 7-7, Surface Natar Hydrology Map and nleo eha 1981 Seneca II <br />ABR) is April, 1981. Finally, Qlechargs volumes at the 003 sits have been affected Dy the <br />reduction in diameter of the di echarge culvert (36 inches to 6 inches) which occurred oa <br />July 19, 1958. No comyasieoa of this years' flows to prior years ie Draeantad efface the <br />oDSZatioa of the truck wash system tends to greatly iaf luence the floe conditions at Pond <br />003. Rsviex of the TDS plot indicates an iacrsneiaq trend. <br />• Surf acs Natar Slte <br />in the Littl <br />it SN-51-1 (S9C1). This elte is the furthest <br />G <br />and Graea <br />C <br />ak draiaa <br />ae <br />rior to dorastrsam <br />exltia <br />the surface rater <br />armit area <br /> B <br />e <br />e y <br />re <br />g <br />raeey <br />D q D . <br /> Therefore, it ie the most sigaif icaat monitoring site with respect to shoring the <br /> cumulntiva affects of miniaq is this area. Review of the hydrograph of monthly flow <br /> measurements again shove the hlgheat peak flows efface 1982. Revier of the TD9 plat <br /> indicates an iacrea eiaq trend. <br />Springs. <br />Spring data may De found after the surface water data presented is ADDendix 8. Spriaq <br />(native) data provided are a water quality report for the year, hietorie flow measurement, <br />and a historic listing of Darcmt millfequival ente and TDS. Spoil spring data provided <br />era water quality data fox the year, historic flow measurements, sad a LON855 plot of EC <br />lelectrical conductivity, corrected to 25° C, since 10/1/B9) values. Ia addition, a flow <br />hydzograDh and TDS LONSSS Dlot are provided for Spoil Spriaq pl. In ADDeadix 8, springs <br />(native) have a SSPC prefix, while sDOil eDringe have a SSSPG Drefix. <br />• Syringe p1, 2 and 3. These syringe all exist close to the north permit boundary. On June <br />16, 9yriaq p1 exhibited an 8C value of 1220 umho/cm, rhila Spriaq t11 exhibited a 8C value <br />13 <br />