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ARCHIVED REPORTS XR0012287
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2900 - Site Mitigation Program
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PR0502410
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ARCHIVED REPORTS XR0012287
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Entry Properties
Last modified
11/19/2024 10:19:09 AM
Creation date
9/4/2019 9:29:54 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0012287
RECORD_ID
PR0502410
PE
2960
FACILITY_ID
FA0005437
FACILITY_NAME
UNOCAL BULK PLANT #0788
STREET_NUMBER
8203
Direction
W
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
Zip
95376
APN
25014003
CURRENT_STATUS
01
SITE_LOCATION
8203 W ELEVENTH ST
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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March 18, 1993 <br /> ' Page 4 <br /> Mr.Bob Sagaser indicated that treated groundwater could not be <br /> '�- discharged to the sanitary sewer system, but would require an <br /> National Pollutant Discharge Elimination System(NPDES) <br /> permit obtained through the state for discharge to the storm drain <br /> due to the limited capacity of the wastewater plant. <br /> o Field Testing:vAlff <br /> .kmvaW44M!Test results showed that a favorable radius of <br /> influence can be attained (14 feet). Soil analytical data implies <br /> that a majority of the petroleum hydrocarbon mass is of low <br /> molecular weight and lies within the low-boiling point range for <br /> petroleum hydrocarbons. This means that hydrocarbons beneath <br /> the site tend to have moderate to high vapor pressures; ideal for <br /> removal via soil vapor extraction. The test results are presented <br /> as Attachment A and the certified analytical report and chain-of- <br /> custody documentation are presented as Attachment B. <br /> INTERIM REMEDIAL ACTION <br /> Beneficial Water Use <br /> The goal of remediation is to protect existing and potential beneficial uses of <br /> surface and groundwater. Uses of primary relevance to the area where the refer- <br /> enced site is located are: (1) municipal and domestic drinking water supply, <br /> (2) agricultural supply, and (3)groundwater recharge; however, it is unnecessary to <br /> evaluate each specific use as it relates to groundwater from the shallow most <br /> water-bearing zone. State Water Board Resolution 88-63 specifies that ground <br /> and surface waters of the state are either existing or potential sources of municipal <br /> and domestic supply. ,W,eca <br /> . efrdiiner <br /> R ¢n 88-63 doe p9t4WJy . * ;e ifiz , aat st at the <br /> .. <br /> > xe, In summary, remedial action objectives should recognize: (1) the <br /> existing beneficial use is probably limited because of the low water quality that <br /> typifies groundwater from the shallow water-bearing zone and (2) the potential <br /> beneficial use is municipal and domestic.supply. <br /> It should be noted that use of groundwater from the shallow most water-bearing <br /> zone as a drinking water source will necessitate water treatment; regardless of <br /> petroleum hydrocarbon impact. <br /> �- 3100104/T RAP <br />
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