ARCHIVED REPORTS_XR0003133 - Laserfiche WebLink

Home Browse Search

I I I ' I li I II I i I Protect No S8080-06-03 I j February 16, 1996 Page 2 I into a 30-gallon vessel containing a mixture of water and trisodmm phosphate (TSP) The exterior of the pump was washed with TSP solution while simultaneously pumping the solution through the pump and discharge hose into a DOT 17-H 55-gallon drum Rinsing of the pump and discharge hose between each well was accomplished by immersing the ' pump into a second 30-gallon vessel containing rinse water and cleansing and pumping in a manner similar to the first wash, with rinse water also discharged into a DOT;17-H 55- gallon drum I Geocon personnel purged approximately six well casing volumes of groundwater (13 to 18 gallons) from each of }he FDIC monitoring wells on January 11, 1996 utilizing a 2-inch diameter Grundfos submersible pump or a disposable bailer During the well purging activities, the groundwater was monitored for pH, electrical conductivity and temperature Well sampling data sheets are attached Purged groundwater was pumped into DOT 17-H 55-gallon drums which were labeled and stored onsite pending receipt of laboratory-analysis and subsequent disposal following regulatory protocols I Following well purging, groundwater samples were collected from each well using a disposable bailer and decanted into pre-preserved 1-11ter amber sample gars and 40-m1 volatile organic analyses (VOA) vials equipped with teflon-septums The groundwater samples were transported to Sparger Technology Incorporated (Sparger) using standard chain-of-custody protocol I .Quality Assurance/Quaid Control Sampling I I A pre-preserved travel blank was provided by Sparger and was placed in the sample cooler during transport to anc from the site Additionally, an equipment blank was obtained by pouring de-ionized water over the pump exterior into a VOA vial'after sampling well MW-4 and after performing pump decontamination I Laborator,}+ Analysis The groundwater samples collected on January 11, 1996 were delivered to ;Sparger, a' California certified analyt.cal laboratory, for the analyses of total petroleum'hydrocarbons as gasohne and diesel (TPHg and TPHd) following EPA Test Method;8015 modified, benzene, toluene, ethylbenzene and total xylenes (BTEX) following EPA Test Method 8020 and methyl tert-butyl ether (MTBE) following EPA Test Method 8020 'The laboratory reports and chain of custody documentation are attached I , i I I' I II I I I I II I I I � 111 I + I I I � � I Y r I