My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
SITE HISTORY
EnvironmentalHealth
>
EHD Program Facility Records by Street Name
>
N
>
99 (STATE ROUTE 99)
>
6100
>
2900 - Site Mitigation Program
>
PR0515353
>
SITE HISTORY
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/19/2024 1:57:03 PM
Creation date
4/1/2020 2:22:43 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
SITE HISTORY
RECORD_ID
PR0515353
PE
2950
FACILITY_ID
FA0012099
FACILITY_NAME
ARCO STATION #595
STREET_NUMBER
6100
Direction
N
STREET_NAME
STATE ROUTE 99
City
STOCKTON
Zip
95209
CURRENT_STATUS
01
SITE_LOCATION
6100 N HWY 99
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
Scanner
SJGOV\sballwahn
Tags
EHD - Public
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
81
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
UM �- <br /> L Ms.Michelle Le <br /> San Joaquin County Environmental Health Department <br /> February 7,2006 <br /> L Page 4 <br /> and January 3, 2006). Analytical results of the composite samples from the over-excavated soil (SP-13- <br /> 14, SP-15-18 and SP-19-22)indicated that GRO was present at a maximum concentration of 620 mg/kg, <br /> 1. toluene at 1.5 mg/kg, ethylbenzene at 3.7 mg/kg, and xylenes at 29 mg/kg. Due to the presence of <br /> petroleum hydrocarbons, the over-excavated material was hauled off site by Dillard Environmental and <br /> disposed of at Forward Landfill in Manteca, California. The soil disposal manifests are presented as <br /> ` Attachment E. <br /> Summary of Activities and Findings <br /> • Three 12,000-gallon, double-walled fiberglass USTs were removed on December 29, 2005. <br /> The tanks were in good condition with no apparent holes or cracks. <br /> L • Soil in the southwest comer of the UST pit and beneath two of the dispensers was stained <br /> and had a strong petroleum odor. <br /> • Significant concentrations of petroleum hydrocarbons were identified in UST pit sample <br /> L PB-3 and dispenser samples DI-1 and DI-4. Benzene was not identified at or above the <br /> reporting limit in any of the soil samples collected. Oxygenates/additives were not identified <br /> in any of the soil samples, with the exception of one detection of TBA in sample DI-3 <br /> (0.039 mg/kg). <br /> • Approximately 57 cubic yards of soil from beneath the southwest comer of the former UST <br /> complex and two of the dispensers were over-excavated to approximate depths of 21 and 13 <br /> feet bgs,respectively. <br /> • Over-excavation was discontinued prior to removal of all impacted soil because of <br /> equipment limitations and interference from an overhead service canopy. <br /> • At the total depth of the tank and dispenser over-excavations, evidence of petroleum <br /> hydrocarbons persists. In the tank pit, stained soil with a petroleum odor was still present <br /> prior to backfilling. Analytical results of confirmation soil samples collected at the <br /> dispenser over-excavation identified concentrations of petroleum hydrocarbons. <br /> Clean stockpiled materials were used as backfill at the site. Stockpiled materials containing <br /> Lpetroleum hydrocarbons were hauled off site for proper disposal. <br /> LCONCLUSIONS <br /> Based on the analytical data collected during the above-described fieldwork, detectable concentrations <br /> L of petroleum hydrocarbons remain in soil near the southwest corner of the UST complex and beneath <br /> two of the dispenser areas. Quarterly groundwater monitoring will continue at the site. <br /> L <br /> KAWpro mV5 BP"COb0595\05 UST Re va]\UST Remmal Rpt.dm <br />
The URL can be used to link to this page
Your browser does not support the video tag.