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DETAILS STATUS:ANNUAL WORKPLAN-ACTIVE SITE STATUS DATE:01/10/1985 LEAD AGENCY:DEPT OF TOXIC SUBSTANCES CONTROL GROUNDWATER CONTAMINATION CONFIRMED ALTERNATE NAME(S):MARLEY COOLING TOWER COMPANY ALTERNATE ADDRESS: 150 N SINCLAIR AVE,STOCKTON,95215 ALTERNATE ADDRESS: 150 N.SINCLAIR AVENUE,STOCKTON,95202 BACKGROUND:Marley Cooling Tower Company(MCTC)manufactures wood components for cooling towers. The site is located in Stockton and is surrounded by a high school, residences and commercial establishments. Wood is pressure treated with preservative solutions. MCTC began operation in 1966 using a chromated copper arsenic solution. The solution was changed to an acid copper chromate in 1982. The MCTC site covers an area of approximately 30 acres. The facility is divided into 2 distinct sections:the North and South Yards.The South Yard is used for milling and fabrication of un-treated wood and does not generate products or wastes containing wood treatment chemicals. Limitied areas of the South Yard were used for the temporary storage of treated wood,which will be remediated as part of the soils RA.The North Yard contains a wood treatment facility(retort),treated wood storage areas,and a stormwater and groundwater treatment system. Soils and groundwater contamination predominantly result from North Yard wood treating activities. Hexavalent chromium (Cr) levels in the groundwater have exceeded federal and state drinking water standards under and downgradient from the MCTC site. One municipal water well was removed from service. Municipal wells and other monitoring wells are sampled and monitored regularly to identify the rate of Cr movement. Remedial actions in the June 1990,RAP were divided into 4 RAs/OUs:surface soils;pipes and culverts;subsurface soils beneath retorts;and groundwater.The stormwater retention pond,also located in the North Yard,was closed with an approved RCRA Closure Plan. The closure involved fixation and encapsulation of metal contaminated waste. MCTC has completed RAs for surface soils, pipes and culverts. The retort pit has been backfilled and capped. The groundwater extraction and treatment system is operating. In 2003, nearly 2000 pounds of chromium were removed from groundwater. An insitu calcium polysulfidc solution injection pilot study is underway to determine the efficiency of reducing the hexavalent chromium in groundwater to the unsoluble trilucent state. ACTIVITIES:ACTIVITY:USE,IORSE,FFA,FFSRA,VCA,EA COMPLETION DATE: 12/23/1984 ACTIVITY:SITE SCREENING COMPLETION DATE:02/20/1987 ACTIVITY:USE,IORSE,FFA,FFSRA,VCA,EA COMPLETION DATE:03/33/1988 ACTIVITY:REMEDIAL INVESTIGATION/FEASIBILITY STUDY COMPLETION DATE:02!22/1990 ACTIVITY:REMEDIAL ACTION PLAN/RECORD OF DECISION COMPLETION DATE:06/63/1990 ACTIVITY:DESIGN COMPLETION DATE: 11/13/1990 ACTIVITY:DESIGN COMPLETION DATE: 11/13/1990 ACTIVITY:DESIGN COMPLETION DATE:03/31/1991 ACTIVITY:DESIGN COMPLETION DATE:03/31/1991 ACTIVITY:REMOVAL ACTION COMPLETION DATE:08/80/1991 REMOVAL OF DEBRIS AND PRESSURE WASHING OF PIPES. REMOVAL OF CONTAMIN-ATED SOILS FROM ISOLATED AREAS OF CULVERTS.BULK OF WORK DONE 11/90-4/91,WITH SOME RESIDUAL WORK DONE 8/91. ACTIVITY:REMOVAL ACTION COMPLETION DATE:08/80/1991 SURFACE SOIL REMOVAL. ACTIVITY:REMOVAL ACTION COMPLETION DATE:03/30/1992 GW EXTRACT&TREAT INSTALL ADDITIONAL EXTRACTION WELLS AND PIPINGNECESSARY TO CAPTURE AND TRANSPORT CONTAMINATED GW TO MARLEY'S ON-SITETREATMENT PLANT.UPGRADE PLANT FROM 250 TO 500 GPM CAPACITY. ACTIVITY:LONG-TERM SITE STABILIZATION CERTIFICATION COMPLETION DATE:03/30/1992 ACTIVITY:REMOVAL ACTION COMPLETION DATE:06/61/1992 INSTALLATION OF INJECTION AND EXTRACTION WELLS FOR SOIL FLUSHINGSYSTEM. ACTIVITY:CERTIFICATION ACTIVITY:OPERATION&MAINTENANCE ACTIVITY:DESIGN COMPLETION DATE:08/80/1997 ACTIVITY:REMEDIAL ACTION(RAP REQUIRED) COMPLETION DATE:03/32/1998 IMPERMEABLE CAP CONSTRUCTED OVER RETORT PIT AREA. ACTIVITY:DEED RESTRICTIONS COMPLETION DATE:03/32/2002 ACTIVITY:USE,IORSE,FFA,FFSRA,VCA,EA COMPLETION DATE:02/21/2002 ACTIVITY:REMEDIAL ACTION PLAN/RECORD OF DECISION ACTIVITY:DEED RESTRICTIONS COMPLETION DATE:02/22/2004 COMMENTS: DATE:01/10/1985 COMMENTS:This is the date the site was first listed pursuant to section 25356. DATE:02/20/1987 COMMENTS:Site Screening Done. DATE:02/21/2002 COMMENTS:OM-Operation and Maintenance of site. DATE: 03/30/2004 COMMENTS: A COVENANT FOR AN ENVIRONMENTAL RESTRICTION AND DECLARATION OF EASEMENT WAS RECORDED ON FEBRUARY 20,2004 IN THE COUNTY OF SAN JOAQUIN. T141S DEED RESTRICTION AND EASEMENT WAS FOR PROPERTY TOTALING APPROXIMATELY 14.15 ACRES SPECIFICALLY DESCRIBES AS COUNTY ASSESSOR'S PARCEL NUMBER 159-020-10 COMMONLY REFERRED TO AS THE SOUTH YARD. PROTECTED ACTIVITIES INCLUDE MEASURES TO PROTECT THE GROUNDWATER EXTRACTION AND TREATMENT FACILITIES. RESTRICTED ACTIVITIES INCLUDE PROHIBITION FROM CERTAIN USES WATER EXTRACTED FROM THE GROUND. EASEMENTS ALLOW FOR THE CONTINUED OPERATION AND MAINTENANCE OF THE REMEDIATION SYSTEM. DATE:03/32/2002 COMMENTS:DEED-Deed Restriction ofsite. DATE:03/32/1998 COMMENTS:RMDL/SOIL--IMPERMEABLE CAP CONSTRUCTED OVER RETORT PIT AREA. DATE: 04/40/1991 COMMENTS: Removal Action#I: Surface soil removal. Removal Action#2: Pipes and culverts, removal of debris and pressure washing of pipes,removal of contaminated soils from isolated areas of culverts. Copyright©2005,First American Commercial Real Estate Services,Inc.All rights reserved. www.RecCheck.com (800)377-2430 15