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ARCHIVED REPORTS XR0004613
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ARCHIVED REPORTS XR0004613
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Last modified
6/13/2019 3:29:30 PM
Creation date
6/13/2019 3:14:09 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0004613
RECORD_ID
PR0544559
PE
3528
FACILITY_ID
FA0009944
FACILITY_NAME
N&S IRRIGATION
STREET_NUMBER
215
Direction
W
STREET_NAME
MAIN
STREET_TYPE
ST
City
RIPON
Zip
95366
APN
25906072
CURRENT_STATUS
02
SITE_LOCATION
215 W MAIN ST
P_LOCATION
05
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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�-(VYATC <br /> A S S' Q C i A T E S I N C <br /> it <br /> Remedial Investigation/Feasibility Study <br /> N&S Irrigation <br /> 215 West Main Street <br /> Ripon, California <br /> ATC Project No. 54.14981.0001 <br /> L <br /> 1.0 INTRODUCTION <br /> ATC Associates Inc. has prepared this Remedial Investigation/Feasibility Study on behalf of N&S <br /> Irrigation to summarize findings of the groundwater extraction and treatment pilot test at the <br /> above referenced site. The purpose of the pilot tests was to evaluate if groundwater extraction is <br /> L' a viable remedial option for remediating petroleum impacted groundwater in the vicinity of the <br /> former underground storage tanks (USTs). This work was done at the request of San Joaquin <br /> County Environmental Health Department (SJCEHD). The findings of the pilot study are <br /> `' summarized in the following paragraphs. <br /> 1.1 Site Location <br /> The site is located on the north side of West Main Street and the east side of Locust Avenue, <br /> Ripon, California, as shown on Figure 1. The location is a residential and commercial area. The <br /> site is currently occupied by N&S Irrigation. <br /> 1.22 Background <br /> ' In March 1990, one 1,500-gallon unleaded gasoline underground storage tank (UST), one <br /> �. unleaded gasoline UST of unknown size, and all associated piping and dispensing equipment were <br /> removed and transported off-site. Laboratory analysis of soil samples collected from beneath the <br /> former 1,500-gallon UST location indicated the presence of detectable concentrations of total <br /> ;- petroleum hydrocarbons. Discoloration of the soil and a petroleum hydrocarbon odor were noted <br /> in the field. After the tanks were removed, the areas of the former tanks were backfilled. <br /> On November 14, 1997, a geologist from ATC Associates supervised the advancement of two <br /> soil borings to 30 feet below ground surface (bgs). Analytical results of soil samples indicated the <br /> presence of petroleum hydrocarbons. One groundwater sample was collected from each boring at <br /> the depth groundwater was first encountered, approximately 30 feet bgs. Groundwater samples <br /> indicated the presence of petroleum hydrocarbons. Results are summarized in ATC's Summary <br /> i. Report of Subsurface Investigation, dated January 14, 1998. <br /> On July 13, 1998, a geologist from ATC Associates supervised the advancement of four soil <br /> borings to 26 to 31 feet bgs. Analytical results of soil samples indicated the presence of <br /> wAwordpm1149811reports1pump_test.doc I <br /> L <br />
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