Laserfiche WebLink
Phase II Site Assessment Report <br /> HIGHWAY 26 QUICK STOP/CHERRY LANE MOBILE HOME PARK <br /> 11225 East Highway 26, Stockton, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr. and Mrs. Carson,Advanced GeoEnvironmental, Inc. (AGE)has prepared this <br /> Phase II Site Assessment Report for the property at 11225 East Highway 26, Stockton, California <br /> (the site).This phase II site assessment was initiated based on recommendations in an AGE-prepared <br /> phase I environmental site assessment of the property. In that report, potential impact from <br /> unassessed methyl tertiary butyl ether(MTBE) at three former gasoline underground storage tank <br /> (UST) locations on the site was discussed. <br /> The Central Valley Regional Water Quality Control Board requirements for the investigation of <br /> underground storage tank(UST) sites was used as guidelines for the investigation. The location of <br /> the site and its surroundings are illustrated in Figure 1; major features on the site and boring <br /> locations are illustrated in Figure 2. <br /> Based on the map titled Lines of Equal Depth to Groundwater Spring 1999 published by the San <br /> Joaquin County Flood Control District and Water Conservation District, the estimated depth to <br /> ground water at the property is between 95 and 100 feet below surface grade (bsg). <br /> 2.0. SCOPE OF WORK <br /> The scope of work included advancement of three soil probe borings,collection of soil samples and <br /> abandonment of the three soil borings. The work was performed as part of a due diligence <br /> investigation of the subject property by Mr. and Mrs. Carson. <br /> 3.0. PROCEDURES <br /> On 09 October 2001, three soil probe borings (P-1 through P-3) were advanced at the site to <br /> determine if soil has been impacted by methyl tertiary butyl ether(MTBE)potentially released from <br /> three former USTs. The field work was conducted as outlined in the Phase II Site Assessment Work <br /> Plan dated 05 October 2001. <br /> 3.1. DRILLING ACTIVITIES <br /> Soil probe borings P-1 through P-3 were advanced utilizing a van-mounted Geoprobe 5400 equipped <br /> with 1.125-inch diameter probe rods with an attached 2.15-inch diameter soil sampler,using"direct <br /> push"technology. Soil probe boring P-1 was advanced vertically to a depth of 20 feet bsg,P-2 was <br /> advanced to 25 feet bsg and boring P-3 was advanced to 30 feet bsg. <br /> Advanced GeoEnvironmental,Inc. <br />