4128 RUCKER AVE SAFEWAY FUEL STATION 2016-01-01 MF Import

[ N V 1 R O N M E N T A L � P A R T N[ R 5 I N C August 5, 2002 Ms. Sharman Braff Safeway Inc. 5918 Stoneridge Mall Road Pleasanton, CA 94�88-3229 .., , .:. . . . . �. A,,..,... Il.i.,......, i. . ......:_ . ..� Re: Baseline Ground Water Quality Assessment Safeway Slore No. 1484 — Former BP Service Slation 4102 RuckerAvenue Everett, Washington EPI Project No. 082163.1 Dear Ms. Braf(: ��JU5U5 -CL�j �/�� C�,��, Environmental Fartners, Inc. (EPI) is pleased lo present ttiis baseline ground water quality assessment for the property localed at 4102 Rucker Avenue in Everett, Washington (site). The purpose of this work was lo provide baseline ground water qualily information for the site after the cessation of retail fueling and prior b construction of a new Safeway retail fueling center at the site. The general location of the subjecl property is shown on Figure 7. Ground Water Sampling Procedures On June 7, 2002, EPI sampled a total of six monitoring wells at ihe site and one monitoring well in Rucker Avenue to Ihe east oi the site (i.e., MW-8). Sampling was conducted in coordination witli AMEC, who were on-site collecting ground water samples from several of the wells for BP. EPI split samples from wells sample�l by AMFC (i.e., MW-5, MW-6, MW-7, and MW-B). EPI was not able to sample monitormg well MW-3 because a job trailer was parked on top of the well. EPI also coliected samples (rom wells MW-1 and NW-10. There appear to be several olher wells on the pro�er:y that were not labe�ed on Ihe maps that were provided to EPI by BP. These wells may be air sparging or vapor extraction wells. EPI sampled one o( lhese wells, which they labeled Unknown-1 for the purposes of this work. Well locations are indicated on Figure 2. The depths to water and tolal depth of well were measured using an electronic water level mete:r. To ensure reproducibility of the data, all measuremenls H�ere made to the north side of lhe top surface of the well casing. The average depth to ground vrater was 5.73 feet below grade. According to site data collected during this monitoring evenl, the hydraulic gradient is generally noriherly to northeasterly with a slope of approximately 0.016 (eet per foot. Piezometric elevalion contours are also indicated on Figure 2.