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PR0545892
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Last modified
7/22/2020 1:52:40 PM
Creation date
7/22/2020 1:47:19 PM
Metadata
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Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
WORK PLANS
RECORD_ID
PR0545892
PE
3528
FACILITY_ID
FA0003601
FACILITY_NAME
ARCO STATION #826951*
STREET_NUMBER
130
Direction
S
STREET_NAME
WILSON
STREET_TYPE
WAY
City
STOCKTON
Zip
95205-5561
APN
15502064
CURRENT_STATUS
02
SITE_LOCATION
130 S WILSON WAY
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
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f <br /> Work Plan fof Additional Site Assessment <br /> and Interim Remediation/Feasibility Testing <br /> ARCO Facility No_5469 <br /> Stockton,California <br /> Page 10 <br /> facility. Wastewater will be placed in DOT-approved 55-gallon steel drums and stored on <br /> site pending disposal at an appropriate facility: <br /> Task 6: Design Plans and Specifications <br /> Delta willprepare design drawings to construct and install a C-SpargerTM remediation <br /> system. The drawings will contain necessary detail's to obtain permits. The details to be <br /> included are remediation system layout;.including wells to be. used for C-Sparging, <br /> trenching and piping details, wellheads connection details, and electrical connection <br /> details. <br /> Task 7: Construction and System Installation <br /> y _ <br /> The C-SpargerTM system manufactured liy K-V Associates consists of a self-contained <br /> ozone-air sparging panel and spargepoint. .:The C-SpargerTM panel is wall mountable and <br /> operates on 110/120-volt, 15 amps, single`phase electrical requirement. Delta proposes to. <br /> use secondary contained %4-inch tubing to . connect the '-C TM panel {ozone <br /> generator) and the sparge points (See Fi <br /> gure 4)• <br /> Delta will retain a contractor and oversee field activity and ensure conformity with <br /> construction requirements set forth in the:plans and specifications.. Delta will supervise <br /> trenching, 'subgrade pipe installation, backfilling, compaction, and resurfacing where <br /> necessary. .:All construction and installation activity will adhere to:city and county permit <br /> requirements. <br /> Task 8: System Start-up <br /> Deltaro oses to inject ozone-enriched air a ' <br /> p p � t o flow rate of 3 to 5 cubic feet per.minute <br /> (cf;n) at approximately 18 to 24 pounds p'er square inch (psi). The operating parameters <br /> (injection flow rate and pressure) will be optimizedto achieve steady state conditions in <br /> the sparge wells, and in the monitoring wells Iocated in the vicinity of sparge wells. TheTM <br /> d <br /> estimated ozone concentration to be provided by C-Sparger. is approximately 150 to <br /> .200 parts per million by volume (ppmv)... Dissolved oxygen levels and depth to water <br /> measurements will be monitored in the`observation wells {MW-4 through MW-8) to <br /> evaluate the aquifer response to C-Sparging. <br /> Task 9: Reporting N <br /> The results of the on and offsite investigation will be presented in a soil and groundwater <br /> assessment report. The report will include,' but not be limited to, analytical tables, a scaled <br /> P:1ARCO154691Work Plan15469'wrkpin 03-2002.doc <br />
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