Laserfiche WebLink
. carbon canisters is filled with 250 pounds of virgin 1200 mesh activated <br /> carbon which effectively removes the MTBE from the water Each of t h e <br /> three canisters has a sample port which allows a sample to be collected <br /> and analyzed at prescribed intervals to determine at what point MTBE h as <br /> broken through a specific canister ASE will replace the canisters when <br /> they no longer are effective at removing the MTBE from the water <br /> Currently, the schedule for sample collection and analysis is quarterly <br /> Also in April 2001, ASE excavated a trench between the well receiving <br /> wellhead treatment and the easternmost residence Within this trench, an <br /> electrical conduit and water pipe were installed that connected the water <br /> from the well and power to the pump to the easternmost residence Thus, <br /> the treated water is now supplying both houses at the subject property <br /> WATER TER SAMPLE COLLECTION AND ANALYSIS <br /> After the system was installed, started, and operating, ASE collected <br /> baseline samples for analysis On April 23, 2001, a water sample was <br /> collected from the well prior to treatment This sample was labeled <br /> 17933-INF-42301 A second sample was collected after carbon canister <br /> number 1 This sample was labeled 17933-GACI-42301 A third sample <br /> • was collected after carbon canister number 2 This sample was labeled <br /> 17933-GAC2-42301 All three samples were placed within an ice chest <br /> containing wet ice while transported to Kiff Analytical of Davis, California <br /> (FLAP# 2236) under chain of custody procedures <br /> Sample 17933-INF-42301 and 17933-GACI-42301 were analyzed by Kiff <br /> Analytical for a full scan EPA Method 8260B which includes total <br /> petroleum hydrocarbons as gasoline (TPH-G), benzene, toluene, <br /> ethylbenzene, and xylenes (collectively known as BTEX), and the seven <br /> fuel oxygenates, and for TPH as diesel by EPA Method 8015 Sample <br /> 17933-GAC2-42301 was placed on HOLD A copy of the certified <br /> analytical report is attached in Appendix B <br /> WATER SAMPLE ANALYTICAL RESULTS <br /> • The only compound identified in sample 17933-INF-42301 (the pre- <br /> treated water sample) was MTBE at 0 78 parts per billion (ppb) <br /> • No compounds were identified in sample 17933-GAC1-42301, which <br /> was collected after carbon canister number 1 This proves that t h e <br /> • treatment system is in fact working as designed <br />