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ARCHIVED REPORTS XR0003497
EnvironmentalHealth
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2900 - Site Mitigation Program
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PR0541989
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ARCHIVED REPORTS XR0003497
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Last modified
6/21/2019 9:34:27 PM
Creation date
6/21/2019 3:49:30 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0003497
RECORD_ID
PR0541989
PE
2950
FACILITY_ID
FA0024100
FACILITY_NAME
COUNTRY CLUB VALERO
STREET_NUMBER
2575
STREET_NAME
COUNTRY CLUB
STREET_TYPE
BLVD
City
STOCKTON
Zip
95204
APN
12302012
CURRENT_STATUS
01
SITE_LOCATION
2575 COUNTRY CLUB BLVD
P_LOCATION
01
QC Status
Approved
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CAMBRIA <br /> SYSTEM DESCRIPTION <br /> The GWE system currently consists of one pneumatic submersible pump installed in well RW-IA, <br /> a transfer tank, transfer pump,flow totalizer meter, filter vessel,and three 1,200-1b aqueous-phase, <br /> granular activated carbon (GAC)vessels Groundwater is pumped from the well into the transfer tank <br /> When the tank is full,level switches activate the transfer pump, which pumps water through the filter <br /> vessels The three carbon vessels are connected in series A flow totalizer located downstream of the <br /> carbon vessels records the volume of water being discharged into the City of Stockton sewer system <br /> The discharge is authorized under a City of Stockton wastewater discharge permit, originally issued <br /> on October 23, 2000 and revised on June 28, 2002 <br /> SYSTEM OPERATION <br /> The GWE system was started on May 31, 2001 for the purpose of collecting start-up(grab) samples <br /> The system was shutdown after sample collection All permit-specified pollutants were reported <br /> below the discharge limits Start-up sample analytical results were submitted to the City of Stockton <br /> on June 18, 2001 <br /> Continuous operation of the GWE system began on June 20, 2001 For the current reporting period, <br /> • a(grab)sample was collected from the effluent of the third carbon vessel,prior to discharge into the <br /> sanitary sewer The sample was analyzed for TPHg, benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX), and MTBE by EPA Method 8260B As per the new sampling requirements, the GWE <br /> system effluent was also analyzed for total petroleum hydrocarbons(TPH)by EPA Method 1664 and <br /> pH by EPA Method 150 1 Annual trace metal analysis(Cadmium,Chromium,Copper,Lead,Nickel <br /> and Zinc)and Total Toxic Organics analysis is scheduled for May of 2003 For the purpose of system <br /> performance monitoring,Cambria collected additional samples (not required by the permit)from the <br /> influent of the first, second, and third carbon vessels and the effluent of the third carbon vessel on <br /> June 19 and June 26, 2002 Analytical results for the GWE system samples are summarized in <br /> Table 1 and presented in Appendix A <br /> As of September 24, 2002, the GWE system has extracted and treated an estimated 927,710 gallons <br /> of groundwater, removing approximately 389, 56 7, and 545 lbs of TPHg, benzene, and MTBE, <br /> respectively The removal totals have been adjusted since the last report, to remain consistent with <br /> our reporting convention Constituent removal for the volume of water extracted between influent <br /> sample events is typically estimated using the most recent influent data Since system effluent samples <br /> only were collected on August 27,2002,the applicable influent data was not yet available Extraction <br /> totals are summarized in Table 2 <br /> • <br /> 0783 2 <br />
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