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2900 - Site Mitigation Program
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PR0505861
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Last modified
4/14/2020 4:30:44 PM
Creation date
4/14/2020 2:13:21 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
COMPLIANCE INFO
RECORD_ID
PR0505861
PE
2960
FACILITY_ID
FA0007056
FACILITY_NAME
MOUNTAIN VIEW TOWNHOMES
STREET_NUMBER
413
STREET_NAME
MONTE DIABLO
STREET_TYPE
AVE
City
TRACY
Zip
95236
CURRENT_STATUS
02
SITE_LOCATION
413 MONTE DIABLO AVE
P_LOCATION
03
P_DISTRICT
005
QC Status
Approved
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Ms. Katie L. Hower Project 22560-203.002 <br /> July 2, 1997 <br /> Page 3 <br /> The first quarterly groundwater sampling event of 1997 was conducted on March 13. <br /> Samples were collected and analyzed for gasoline range Total Petroleum Hydrocarbons <br /> (TPHG), diesel range Total Petroleum Hydrocarbons (TPHD), BTEX, PAHs, and <br /> dissolved lead. The only constituent detected was TPHD in the sample collected from <br /> MW-1, at a concentration of 130 micrograms per liter (µg/L). Because dissolved lead was <br /> not detected in any of the samples, the analysis for lead was omitted from the analytical <br /> suite for this sampling event and future sampling events. The decision to omit dissolved <br /> lead from the analytical suite was discussed in a January 20, 1997, letter from Ms. Katie <br /> Hower of CPL to Mr. Joel Weiss of the RWQCB which was subsequently approved by <br /> Mr. Joel WeissS. <br /> GROUNDWATER SAMPLING PROTOCOL <br /> On May 29, 1997, monitoring wells MW-1, MW-2, and MW-3 were purged of at least <br /> three casings volumes of water and sampled using a Teflon bailer. Before purging, the <br /> water level in each well and the total depth of the well were measured using an electrical <br /> sounder and well integrity was recorded. After water level measurements were recorded, <br /> the bailer was lowered into the well just below the-water level, retracted, and inspected for <br /> the presence of floating product or sheen. During purging, the electrical conductivity, pH, <br /> and temperature were monitored. These parameters are presented, along with <br /> observations concerning turbidity, in the Water Sample Field Data Sheets in Appendix A. <br /> Following collection, each sample was placed in a cooler containing frozen gel packs. <br /> After sampling, the cooler was transferred directly to a representative of NEI/GTEL <br /> Environmental Laboratories (GTEL). Chain-of-custody documentation, which is included <br /> in Appendix B, was initiated at the time of sampling and accompanied all samples <br /> throughout transport to the laboratory. <br /> CHEMICAL ANALYSES <br /> Groundwater samples collected during the second quarter sampling event were analyzed <br /> for TPHG and BTEX by EPA Method 8020A and TPHD using "Test Methods for <br /> Evaluating Solid Waste. Physical/Chemical Methods" SW-846. Samples were also <br /> 5 RWQCB. 1997. Letter(re: Work Plan to Conduct Groundwater Sampling,Chevron Pipe Line Leak <br /> Site,Mountain View Town Homes Project San Joaquin County)from J.M. Weiss to K.L. Hower; <br /> Chevron Pipe Line Company.California Regional Water quality Control Board,Central Valley <br /> Region,February 11. <br /> mcoe <br /> FRE:\H:\WINWORD\MP2QT97.DOC-97\jes:2 <br />
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