ARCHIVED REPORTS_XR0012658 - Laserfiche WebLink

Home Browse Search

9 ANION ICE COMPANY 1320 Weber Street, Stockton, California Phase 11 - Report of Findings STATEMENT OF PROBLEA1 Union Ice Company ("LttC") owns and operates an ice manufacturing and cold and frozen storage warehouse facility at 1320 Weber Street, in Stockton, California (Figure 1). The facility is nearly surrounded by tele Stockton Deep Water Channel and Mormon ty ill Slough (Figure 2). Four (4) underground tanks were thatved froi un L thori11 this zecl release of December, 1988. During removal, it was observed hydrocarbons (gasolilte) had occurred. WHF Environmental Consultants, Inc. ("WHF") was retained by UIC to let as principal consultants in dealing with this LUST problem. Henkle S Associates acts as geological coilsultants to WHF, and as such we are the principal geotechnical consultant for the project. In March of 1889, six (b) In011itoring wells were installed at the site. One of these wells, MW-4D is a double cased well that tests the second aquifer at the site. Water levels and ground water chemistry have been monitored frequently at tele site, since installation of tilese wells (Plate 1). In May of 1990, a 31 point sail vapor survey was conducted at the site. Soil gasses were analyzed for methane content and for gasoline equivalent. Tile soil vapor survey showed that hydrocarbon vapors in the soil were present in an elongated concentration e ground wa�er configttration, This configurationsoilos<irvey werengatt,d in report d o Sae direction of n Joaquin County flow direction. Results of the Department of Health in our report of lune, 1990. In February of 1991, a remedial excavation of about 2,000 cubic yards of petroleum contaminated soils was undertaken at this site. In addition to this excavation, a potential extraction well (MW-8S) and a clown gradient monitoring well (P4W-9S) were installed into the first aquifer. In March of 1991, a 12 hour aquifer pumping test was performed on well YW-8. This well was pumped at a constant discharge rate of 4.16 gpm for 12 hours. Drawdown during the test. was monitored for this well as well as all other wells on the property The recovery of these wells was these monitored for 12 hnurs. 'rile wells were re- salllpled in March and April of 1991; the last previous sampling round was in August --of 1890: Since the completion of the above nlentioned_work, this report was prepared. rhe report deals with the above mentioned remedial activities.