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WORK PLANS_FILE 1
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PR0545028
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WORK PLANS_FILE 1
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Last modified
12/6/2019 2:55:47 PM
Creation date
12/6/2019 2:50:32 PM
Metadata
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Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
WORK PLANS
FileName_PostFix
FILE 1
RECORD_ID
PR0545028
PE
3528
FACILITY_ID
FA0003919
FACILITY_NAME
VAN DE POL ENTERPRISES
STREET_NUMBER
5491
STREET_NAME
F
STREET_TYPE
ST
City
BANTA
Zip
95304
CURRENT_STATUS
02
SITE_LOCATION
5491 F ST
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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Addendum to Workplan for Ozone Sparging <br />_ Moore Petroleum Bulk Plant,5491 F Street,Banta,California ? <br /> Page 2' ; <br /> ' ro osed depth, the anticipated radius 'of influence:for the -s ar g gea ozone is a roximatel 25 <br /> ' P p P P p pP Y <br /> feet. That is, each sparge point will have.'a 5.0-ft circular zone of influence on the aquifer. This <br /> depth is based on the attached"bubbling zone"•versus air,pressure, or sparge pressure, graph for'.. <br /> a sparge point set 10 feet below the groundwater surface. An overlay of the sparge points radii <br /> over the projected extent''of MTBE,in-groundwateris.shown in Figure 3. The MTBE contours <br /> were used since MTBE,represents the.m ore mobile and defined petroleum constituents detected ; <br /> in groundwater. <br /> < After the system has-been installed, the performance will be monitored through changes in the <br /> dissolved petroleum constituent. concentrations observed during quarterly "groundwater. <br /> monitoring events. Itis anticipated the ozone will' also,.creat' a.barrier'to dissolved petroleum ' <br /> constituents migrating to,the east toward.the off site,domestic well: <br /> CONCLUSIONS AND RECOMMENDATIONS,) <br /> - It is noted that TPH as.'diesel'°(TPHd),concentrations in wells MWS i MW-3, MW-8, MW-10, <br /> ' VEW-2, and VEW-3 are 'not decreasing;, some '-non-volatile•TPHd compounds 'are being <br /> classified as TPH as motor oil (TPHmo). in the groundwater samples (Table 1). These'less <br /> volatile compounds will riot be removed by soil vapor extraction. Therefore; Apex recommends <br /> installing an in-situ chemical,oxidation system to remove the"TPHd/TPHmo mass from the soil <br /> and groundwater, and reduce, groundwater concentrations,to non-detect for these compounds. <br /> More sparge points 'may be proposed in the future•.if.the technology proves successful in the <br /> targeted areas. <br /> A- <br />
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