SITE INFORMATION AND CORRESPONDENCE 1993-1995

Home Browse Search

Pacific Gas and Electrir, Company Environmental Services r, PO Box 7640 ; San Francisco,CA 94120 c�tiL faE Tl1 415/973-7000 � ' a✓/( Q( Direct Dial 415/973- September 15, 1995 Telecopy 415/973-9201 9 P�/ 18 James L. Tjosvold, P.E. Acting Chief, Site Mitigation Branch California Environmental Protection Agency Department of Toxic Substances Control 10151 Croydon Way, Suite 3 Sacramento, CA 95827 Attention: Mr. Fernando Amador Dear Mr. Tjosvold: Re: Docket #HSA 90/91-08 - Stockton Former Manufactured Gas Plant Site Subject: Revised Project Schedule Attached for your review and approval is a revised project schedule for Pacific Gas and Electric's (PG&E's) Stockton Former Manufactured Gas Plant Site. This project schedule supersedes the schedule submitted to you on May 1, 1995, and has been revised to incorporate the following: • Inclusion of four additional months of groundwater level measurements prior to submittal of the Phase IV Groundwater Investigation Work Plan (for the installation of additional Zone A, B and C monitoring wells). This is needed to collect Fall/Winter groundwater level measurements prior to locating the new monitoring wells. Inclusion of several remedial objectives and goals in the soil operable unit feasibility study. These two items are being incorporated into the schedule for the following reasons: I. Phase IV Work Plan Submittal PG&E was directed to install additional groundwater monitoring wells in Zones A, B and C during a February 28, 1995 meeting with the Department of Toxic Substances Control (DTSC) and the Central Valley Regional Water Quality Control Board (RWQCB). During an April 24, 1995 conference call between representatives of PG&E and DTSC, it was agreed that submittal of the Phase IV Work Plan (for installation of the additional