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- Ground.Water Monitoring Report Fourth Quarter 2001 ,. WELDON CHURCH PROPERTY I104 West Beverly Place Tracy, California �. 1:0- INTRODUCTION At the request of Mr. Weldon Church,Advanced GeoEnvironmerital, Inc. (AGE):has prepared.this ' quarterly ground water monitoring report for the site at 104 West Beverly Place, Tracy, California ' (the site). The scope of work included monitoring and sampling seven wells, obtaining laboratory ' analyses of the samples. and preparation of this report. ,The site setting is illustrated,on Figure 1. Locations of structures, borings and monitoring wells related to the site are illustrated on Figure 2. I S ite history and fundings from previous investigations and previous monitoring events at the site are detailed in.Preliminary Investigation and Eyahiation Report September 1996 (PIER), -dated , 10 September 1996, and Ground Water Monitoring Report-First Quarter 2000, dated 09 August ' 2000, both prepared by AGE. ; 2.0: .BACKGROUND The site is located in a residential area of central Tracy, California; in San Joaquin County(Figure 1), One house and a detached garage/storage area are currently located on the property. An apartment'. complex is located immediately west of the former UST area;residences are located to the south and east of the site. One small capacity(550-gallon) UST was installed at the site in the early 1980s. The I, tank was•used to fuel vehicles associatedwitli Church Refrigeration,a company owned and operated by Mr. Weldon Church: 3.0. PROCEDURES. ; The,November 2001.monitoring"event was erformed.in accordance with Regional Water Quality' p . ,. Control Board Central.Valley,Region (RWQCB-CVR) and,San Jo_ aquin'County'Public Health . Services.- Environmental Health Division;(PHS EHD)'guidelines for investigation of underground storage tank (UST):sites and for sampling ground water monitoring wells, respectively. 3.1. WELL'MONITORING EVACUATION-PROCEDURES On 19 November 2001, a Solinst water level meter was used,to measure the depth to ground water in each well relative to the'top of the well casing. After groundwater depth measurements dere collected, each monitoring well was purged.using a new disposable bailer. Approximately 3 to S gallons of water were evacuated from each monitoring well, a minimum of three casing-water volumes, per well. s Advanced GeoEnvironmental,Tne.