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3500 - Local Oversight Program
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PR0545701
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Last modified
5/28/2020 10:25:47 AM
Creation date
5/28/2020 10:23:23 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
WORK PLANS
RECORD_ID
PR0545701
PE
3528
FACILITY_ID
FA0000720
FACILITY_NAME
MADSENS SUNRISE DAIRY
STREET_NUMBER
239
Direction
S
STREET_NAME
STOCKTON
STREET_TYPE
ST
City
RIPON
Zip
95366
APN
25927805
CURRENT_STATUS
02
SITE_LOCATION
239 S STOCKTON ST
P_LOCATION
05
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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Work Plan For Soil Boring and Monitoring Well Installation,City of Ripon/Madsen Sunrise Dairy,Ripon,California <br /> December 2,2010 <br /> PREVIOUS ENVIRONMENTAL WORK <br /> On November 5, 1993, three fuel USTs (two 8,000 gallon and one 6,000 gallon) were removed from the <br /> site. No holes were observed in the USTs at the time of removal. Six soil samples were collected from <br /> beneath the fuel USTs at depths ranging from 14 to 15 feet below ground surface (bgs). The soil samples <br /> from the beneath the USTs were reported as not detected for Total Petroleum Hydrocarbons as gasoline <br /> (TPHg) and Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX). Inspection records provided by the <br /> SJCEHD show the former fuel UST pit located approximately 100 feet north of 2nd Street and 5 feet west <br /> of Stockton Street(presumably 5 feet west of the property line). <br /> On November 12, 2009, GR observed the removal of one 12,000-gallon UST by Speelman Excavation at <br /> the site. No observable holes were noted in the UST. Following UST removal, GR collected soil samples <br /> TW-13 and TE-13 at a depth of approximately 13 feet bgs from the beneath each end of the former UST. <br /> GR also collected soil sample TM-13 from beneath the tank midpoint at a depth of 13 feet bgs. Soil <br /> sample locations are shown on Figure 2. <br /> Soil samples TE-13, TM-13, and TW-13 were analyzed for Total Petroleum Hydrocarbons as diesel <br /> (TPHd) by EPA Method modified 8015, for TPHg, BTEX, Methyl tert-Butyl Ether (MtBE), Ethyl tert- <br /> Butyl Ether (ETBE), Di-Isopropyl Ether (DIPE), Tert-Amyl Methyl Ether (TAME), and Tert-Butanol <br /> (TBA), 1,2-Dichloroethane(1,2-DCA), and Ethylene Dibromide(EDB)by EPA Method 8260B. <br /> BTEX, MtBE ETBE, DIPE, TAME, TBA, 1,2-DCA and EDB were reported as below the laboratory <br /> method reporting limits in samples TE-13, TM-13 and TW-13. TPHg was detected in soil sample TW-13 <br /> at a concentration of 77 parts per million (ppm) and was reported as below the laboratory method <br /> reporting limits in samples TM-13 and TE-13. TPHd was detected in soil sample TW-13 at a <br /> concentration of 2,000 ppm and was reported as below the laboratory method reporting limits in sample <br /> TM-13 and TE-13. <br /> On August 5, 2010, a GR geologist observed the advancement of four Geoprobe® soil borings (GP-1 <br /> through GP-4) to 32 feet bgs. The Geoprobe locations are shown on Figure 2. Soil sampling for <br /> lithologic logging was conducted continuously beginning at four feet bgs and soil samples from selected <br /> depths were collected for chemical analysis. After groundwater was encountered, grab groundwater <br /> samples were collected from each boring. The soil and groundwater samples were analyzed for TPHg <br /> and TPHd by EPA Method 8015 modified. <br /> Soil samples collected from Geoprobes GP-I through GP-4 did not contain detectable concentrations of <br /> TPHg. Soil samples from GP-3 showed no detectable concentrations of TPHd. Soil samples from GP-1 <br /> and GP-2 contained no detectable concentrations or TPHd, except for soil sample GP-1-5, collected at a <br /> depth of five feet bgs, which contained 1.4 ppm diesel (reported by the lab to be higher boiling point <br /> hydrocarbons than diesel) and sample GP-2-25, collected at a depth of 25 feet bgs, which also contained <br /> 1.4 ppm diesel (reported by the lab to contain discrete peaks and higher boiling point hydrocarbons than <br /> diesel). <br /> 2 <br />
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