My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WORK PLANS
Environmental Health - Public
>
EHD Program Facility Records by Street Name
>
G
>
GAWNE
>
16865
>
2900 - Site Mitigation Program
>
PR0505611
>
WORK PLANS
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/17/2020 5:24:42 PM
Creation date
1/17/2020 4:36:39 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
WORK PLANS
RECORD_ID
PR0505611
PE
2951
FACILITY_ID
FA0006807
FACILITY_NAME
MORESCO PROPERTY
STREET_NUMBER
16865
STREET_NAME
GAWNE
STREET_TYPE
RD
City
STOCKTON
Zip
95205
APN
18309009
CURRENT_STATUS
01
SITE_LOCATION
16865 GAWNE RD
P_LOCATION
99
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.
/
111
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
�.I U <br /> ` Former Moresco Property Page 3 <br /> Site Characterization Work Plan <br /> Appendix A <br /> �. Project No.251.2 <br /> March 14, 1995 <br /> t' 2.5 Sample Analysis <br /> Samples will be analyzed for benzene, toluene,ethyl benzene and total xylenes (BTEX),EPA methods <br /> �. 8020 and 602, and for total petroleum hydrocarbons as gasoline, EPA method 3550/8015 modified. <br /> The analyses will be performed by Sherwood Laboratories of HiImar., California State Certification <br /> #1400. <br /> 2.6 Data Reduction <br /> Analytical data will be integrated with the geological data gathered during field investigation. Cross <br /> &. sections will be prepared to illustrate the stratigraphy and the distribution of soil contamination. The <br /> cross sections may be used for interpreting the extent of contamination. <br /> 2.7 Groundwater Sampling Procedure <br /> Groundwater sampling procedure is as follows: Arriving on site the stainless steel submersible <br /> pump/stainless steel bailer is assembled and the sampling equipment prepared. The wells are <br /> +' unlocked,opened,and depth to water is measured from the top of casing. <br /> As a matter of procedure, the following actions are taken to evaluate the presence of floating product, <br /> +� or third phase contaminant material on the groundwater. If field evidence suggests that floating <br /> product may be present(i.e., the well has a strong odor of hydrocarbons and gasoline is observed on <br /> the water meter probe), then either a bailer or product/water interface meter is used to measure the <br /> thickness of floating product on the surface of the groundwater. In the event that floating product is <br /> present, that well would not be sampled unless specifically requested. <br /> The pump/bailer is inserted into the well,lowered to a depth of 6 to 8 inches above the bottom and <br /> activated. Water flow is monitored visually for cloudiness and measured for flow rate, temperature, <br /> conductivity, and pH. At least three well volumes are purged from the well prior to sampling until <br /> pH, conductivity, and temperature had stabilized to ensure sampling from representative formation <br /> +� water. <br /> After stabilization of water parameters, the well is allowed to recharge. Prior to sampling the well,a <br /> �. bailer blank is collected by pouring water provided by the laboratory into the bailer and emptying it <br /> into a sample vial. Sampling is accomplished by using a stainless steel bailer attached to a coated, <br /> stainless steel cable. The bailer is slowly lowered into the well and carefully allowed to fill with <br /> water. After filling, the bailer is carefully raised from the well taking precaution not to agitate the <br /> contained water. An emptying device was coupled to the bailer and the water was slowly transferred <br /> into the sample container (40 ml VOA vials). The sample vials provided by the laboratory contain 4 <br /> to 5 drops of hydrochloric acid to retard possible biological degradation. The vial is capped,inverted, <br /> and tapped to check for air bubbles. <br /> After assuring that bubbles are not present, the vial is labeled and inserted into a closed-cell foam <br /> W holder and placed in an ice chest, cooled to 4° Celsius, for transport to the laboratory. To monitor <br /> possible cross contamination from any source,a trip blank prepared from water provided by the Iab, <br /> is carried throughout the sampling,storage,and shipping process. <br /> LO <br /> LM <br />
The URL can be used to link to this page
Your browser does not support the video tag.