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Map ID Direction yMAP FINDINGS r Distance Distance(ft) EDR ID Number Elevation Site Database(s) EPA ID Number PG&E,STOCKTON (Continued) S102008388 ' is detected Date 03/31/1998 Comment RAP--DTSC HAS APPROVED THE FINAL RAP THE SUBJECT RAP WAS MADE AVAILABLE FOR PUBLIC REVIEW FOR 30 DAYS,FROM 119198 TO ' 2/9198 A NOTICE WAS DISPLAYED IN THE STOCKTON RECORD NEWSPAPER AND A FACT SHEET WAS MAILED TO THE SITE MAILING LIST TO PROVIDE INFORMATION AND ANNOUNCE THE COMMENT PERIOD AND A PUBLIC MEETING ON 1120/98 DTSC HELD A PUBLIC MEETING AT THE STOCKTON-SAN JOAQUIN COUNTY LIBRARY AN INFORMATION REPOSITORY WAS ESTABLISHED AT THE COUNTY LIBRARY AND AT DTSC-SACRAMENTO OFFICE FILE ROOM TO MAKE AVAILABLE FOR REVIEW THE DRAFT RAP, NEGATIVE DECLARATION,AND SUPPORTING DOCUMENTS THE FINAL RAP OUTLINES THE CONCEPTUAL PROCESS FOR REMEDIATION OF SOIL AND GROUNDWATER CONTAMINATION THE SELECTED REMEDY INVOLVES EXCAVATION OF SOIL TO MEET THE ND GOAL AT THE SITE,MONITORING OF GROUNDWATER IN ZONES A,B AND C TO ENSURE THAT NATURAL BIODEGRADATION OF COPC'S CONTINUES AND MAINTAINING CONTROLS TO LIMIT EXPOSURE SOIL IS TO BE EXCAVATED FROM THREE FORMER MGP STRUCTURE AREAS TO 25 FEET 24 FEET AND 8 FEET,RESPECT- IVELY AS WESS AS EXCAVATIO OF SOIL FROM SIX OTHER AREAS ADJACENT TO AREAS OF HIGH COPC CONCENTRATION RESULTING IN A Not reported Not reported Not reported Not reported Not reported Not reported Not reported Not reported Not reported Date 08/14/1998 Comment Not reported Date 1 211 7/1 998 Comment DES—DTSC APPROVED THE REMEDIAL DESIGN AND IMPLEMENTATION PLAN FOR THE REMEDIAL ACTION PRESENTED IN THE APPROVED REMEDIAL ACTION PLAN(1998) THE REMEDIAL ACTION CONSISTED OF EXCAVA- TION OF APPROXIMATELY 10,200 CUBIC YARDS OF SOIL CONTAMINATED PRIMARILY BY PAH'S,DISPOSAL TO AN OFFSITE LANDFILL,AND CONTROLLING EXPOSURE BY MAINTAINING A CAP OVER THE SITE A DEED RESTRICTION WILL BE PLACED TO GOVERN FUTURE LAND AND GROUNDWATER USE GROUNDWATER WILL BE MONITORED ROUTINELY TO MONITOR DECREASING TREND OF PAH CONTAMINATION IN GROUND WATER ' 69 STOCKTON GAS LIGHT&HEAT CO Coal Gas G000000927 NNW 501-547 S CENTER AND 520-548 S CENTER NIA 1/2-1 STOCKTON,CA 95203 4156 Higher COAL GAS SITE DESCRIPTION Stockton Gas Light and Heat is located on the north side of W Hazelton Ave bet erre St and Centre St By 1917,site owned by Western States Gas and Electric occupies entire block bordered by W Churc S Centre W Hazelton and S Commer Center By 1848 site occupied by Pacific Gas and Electric Co Stockton Warehou further expanded to occupy two block area bordered by W-E Church,S Eldorado merce Streets 4 @Copyright 1993 Real Property Scan Inc TC514466 2s Page 63 4