WORK PLANS - Laserfiche WebLink

Home Browse Search

Ae 0 G e o f e c h n i c a l Research & Development February 9, 1999 Mr. Keith Tallia Oil Equipment Service P.O.Box 950 San Andreas, CA 95249 Subject: UST Removals and Soil Sampling Waterloo Food and Fuel, 3032 Waterloo Road, Stockton, California GRD Project 9 980192 Dear Mr. Tallia: GeotecNiical Research and Development (GRD) has been retained to provide consulting services for an underground storage tank. (UST) investigation and closure project conducted on the subject site. This correspondence provides an account of observations, activities, analytical results and tecornmendations relative to this project. The subject site is a convenience store.. and gasoline retailing facility in Stockton, California(Figure 1). Formerly, three gasoline USTs were Jocated between the convenience store building and the three fael dispenser is!an.ds. A fourth former waste oil UST was located behind the store building. The GRD identification number, volurne, contents and approximate dimensions of the USTs are listed below: UST 1D NUMBER CONTENTS I CAPACITY (gallons) D NIENUIONS --—j T1 Gasoline 15,000 8 feet diameter x 14 feet long T2 Gasoline 1 Q QQ0 _ 8 feet diameter x 27.5 feet loner T3 Gasoline 10 000 8 feet diameter x 27.5 feet lonF -- _-- ---._ .� ,-mm_..._ — T4 _ Waste oil _—— 500---- -- 4 feet diameter x 6.5 feet lour.7 The dispensers;were connected to the USTs by subsurface product line piping as shown on Figure 1. The waste oil UST was connected to a former drain inside the store building. Vent line piping for all four USTs were plumbed to the south side of the store building. The ground surface over the gasoline USTs was paved xith asphalt. The ground. surface over the waste-oil UST was not paved. The subject USTs and associated product piping and dispensers were excavated and removed on 6 January 1999 by Oil Equipment Service(OES) of San Andreas, California. The USTs were examined after removal and all were found to be in generally good condition with slight corrosion and pitting; no tan,; wall failures were noted in thc.� subject USTs.