My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
ARCHIVED REPORTS XR0000884
EnvironmentalHealth
>
EHD Program Facility Records by Street Name
>
C
>
CALIFORNIA
>
300
>
3500 - Local Oversight Program
>
PR0544147
>
ARCHIVED REPORTS XR0000884
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
2/14/2019 2:09:44 PM
Creation date
2/14/2019 1:14:38 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0000884
RECORD_ID
PR0544147
PE
3526
FACILITY_ID
FA0004522
FACILITY_NAME
SKIPS SERVICE STATION
STREET_NUMBER
300
Direction
S
STREET_NAME
CALIFORNIA
STREET_TYPE
ST
City
STOCKTON
Zip
95206
APN
14909501
CURRENT_STATUS
02
SITE_LOCATION
300 S CALIFORNIA ST
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
Scanner
WNg
Tags
EHD - Public
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
69
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
On May 2 and 3, 2000 the soil borings for both MW#5 and MW#6 were made as described in the <br /> work plan of 3/17/2000. Monitoring wells were installed in both of these soil bores. The work plan <br /> Sof 3/17/2000 also included a soil bore and monitoring well (MW44)to be installed in the sidewalk <br /> on the north side of Lafayette Street. This soil bore was not completed as planned. An unknown <br /> underground storage tank was encountered in the direct path of the soil bore. As a result of this <br /> encounter, the soil bore was abandoned and the local agencies were notified. <br /> A work plan to expand the horizontal definition of the contamination plume was approved in <br /> " December of 2000. This work plan called for the installation of three new CPT's within the Caltrans <br /> R/W to the north of the project site. These CPT's were completed on March 8, 2001 and soil and <br /> water samples were extracted to a depth of 125 feet. Also, included in the work plan of December <br /> 2000 was the installation and testing of four new monitoring wells,MW-8S,MW-813,MW-7,MW- <br /> 9, to be placed on the project site or the adjacent property. These monitoring wells were completed <br /> on April 11, 2001. <br /> In January of 2002 the owners of this property removed the apartment house structure on the east <br /> side of the property. At the time of this report that portion of the property is clear without any <br /> structures or other improvements. <br /> On August 9 & 10, 2002 the extraction well installed for the pump test was completed and <br /> developed. In December of 2002,work crews under the control of others,removed the buildings on <br /> the lot directly East of the site. This lot is not owned by the Olivarez's.Monitoring wells MW8S and <br /> MW8D were damaged and the caps and covers were removed along with the upper portion of the <br /> casing by the crews removing the buildings. These monitoring wells were repair in March of 2003. <br /> REPORT OF FINDINGS FOR THE FIRST QUARTER MONITORING EVENT <br /> Procedure <br /> On March 28,2003,Del Tech Geotechnical Support Services repaired monitoring wells MW-8S& <br /> MW-81)and extracted water samples from all of the monitoring wells on the above stated property. <br /> The work was supervised by Foothill Engineering. Special care was taken to redevelop MW-8S & <br /> MW-8D to remove any soil that had dropped into the casing during the time the covers were <br /> damaged. <br /> All samples were extracted using the tube with check valve pump system. Purge rates were +/- .5 <br /> g.p.m. and the physical properties of the groundwater can be found in the Del-Tech Field Report <br /> which is attached and part of this report. <br /> The replacement and original monitoring wells were sampled for analysis with the exception of <br /> MW-2R, which was dry. The original monitoring wells (MW-1, MW-2, MW-3) were used to <br /> establish the groundwater elevation and hydraulic gradient. All samples were transported under <br /> chain of custody to Sherwood Labs of Hilmar, California for analysis by EPA method SW8020F. <br /> Samples were transported under chain of custody to Entech Analytical Labs for analysis by EPA <br /> Method 8260FA for oxygenates including 1,2-DCA and EDB. All water sample analysis and <br /> groundwater elevations are summarized in the attached tabular recap sheet. Copies of the original <br /> Laboratory data sheets from this sampling event are also attached and are a part of this report. <br /> Findings <br /> The groundwater elevation at time of monitoring was about 0.3' higher than the last monitoring <br /> 2 <br />
The URL can be used to link to this page
Your browser does not support the video tag.