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ARCHIVED REPORTS_XR0003964
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3500 - Local Oversight Program
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PR0545393
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ARCHIVED REPORTS_XR0003964
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Last modified
3/5/2020 2:10:27 PM
Creation date
3/5/2020 1:33:48 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0003964
RECORD_ID
PR0545393
PE
3528
FACILITY_ID
FA0005072
FACILITY_NAME
DIAMOND LUMBER INC
STREET_NUMBER
224
Direction
N
STREET_NAME
MAIN
STREET_TYPE
ST
City
LODI
Zip
95240
APN
04308301
CURRENT_STATUS
02
SITE_LOCATION
224 N MAIN ST
P_LOCATION
02
P_DISTRICT
004
QC Status
Approved
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EHD - Public
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L-Qdi-QUArttfly Groandwater MOftjjOrjRg Pae 1 <br /> 1.0 INTRODUCTION <br /> Steffen Robertson and Kirsten (U.S.), Inc. (SRK) has been retained by Diamond Lumber <br /> rCompany to perform quarterly groundwater monitoring of three groundwater monitoring wells <br /> at the Diamond Lumber facility located at 224 North Main Street, Lodi, California. The Scope <br /> of Work included sampling three groundwater monitoring wells to investigate the potential for <br /> groundwater contaminant migration from two underground storage tanks (USTs) that were <br /> removed from the site in 1985. The three groundwater monitoring wells were installed by SRK <br /> in November, 1991, under the direct guidance of Ms. Margaret Lagorio Senior REHS San <br /> Joaquin Public Health Services/Environmental Health Division(PHS/EHD). Specific information <br /> i. regarding subsurface soil conditions and monitoring well construction details is presented in SRK's <br /> ' Phase II Environmental Audit Report for this site dated December 1991. <br /> This quarterly groundwater sampling event was performed on April 7, 1992, by fully qualified <br /> SRK professionals under the technical guidance and direct supervision of Rob D. Gwilym, an <br /> Environmental Geoscientist and registered Environmental Professional (NAEP 1792) also <br /> registered as an Environmental Assessor in California (0035), Nevada (EM0109), and <br /> Washington. Geologic and hydrogeologic aspects were completed under supervision and guidance <br /> of Greg W. Knell, California Registered Geologist 4692. <br /> 1.1 Background Information <br /> During November 1991, an SRK Field Hydrogenlogist supervised the placement of the three <br /> monitoring wells. Turner Explorations Inc., a California licensed driller,was retained to perform <br /> ' drilling services using a rotary drill rig equipped with hollow stem augers. The augers were steam <br /> cleaned before each monitoring well was installed. Soil samples were collected at 5-foot intervals <br /> during the installation of each monitoring well using a California split-spoon sampler lined with <br /> brass tubes. The sampler and brass tubes were pre-cleaned before each sampling event using <br /> non-phosphate soap, then rinsed with deionized water. All cuttings and samples were collected <br /> for logging and testing for organic vapors using a Thermo Environmental Instruments 580A <br /> organic vapor meter (OVM). No odors or petroleum soil staining were observed in any of the <br /> soil samples. OVM readings were less than 1 ppm. All geological exploration and reporting was <br /> completed under the direct supervision of a SRK geologist registered in California (Gregory W. <br /> Knell, California Registered Geologist No. 4692). <br /> ' Analytical soil samples were selected during the boring of each monitoring well at depths of 30 <br /> feet (seasonal high groundwater level) and 50 feet (capillary fringe at the current groundwater <br /> ' level) and submitted to a California certified laboratory for analysis. The analytical soil samples <br /> were placed in a cooler containing additional frozen blue ice packets, and shipped following <br /> chain-of-custody procedures to North Creek Analytical (CLAP # 1267) for analysis. The <br /> analytical soil parameters include total petroleum hydrocarbons(TPH)as gasoline(Modified EPA <br /> Method 8015); benzene, toluene, ethylbenzene, and xylene (BTEX) (EPA Method 8020); and <br /> total lead (EPA Method 7421). <br /> Steffen Robertson and Kirsten <br /> 325W•24VWt,l yW.2{ <br />
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