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ARCHIVED REPORTS_2009_14
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ARCHIVED REPORTS_2009_14
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Last modified
7/17/2020 3:53:32 PM
Creation date
7/3/2020 10:54:48 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
4400 - Solid Waste Program
File Section
ARCHIVED REPORTS
FileName_PostFix
2009_14
RECORD_ID
PR0440005
PE
4433
FACILITY_ID
FA0004516
FACILITY_NAME
FORWARD DISPOSAL SITE
STREET_NUMBER
9999
STREET_NAME
AUSTIN
STREET_TYPE
RD
City
MANTECA
Zip
95336
APN
20106001-3, 5
CURRENT_STATUS
01
SITE_LOCATION
9999 AUSTIN RD
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
Scanner
SJGOV\rtan
Supplemental fields
FilePath
\MIGRATIONS\SW\SW_4433_PR0440005_9999 AUSTIN_2009_14.tif
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EHD - Public
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FORWARD LANDFILL 9999 S. Austin Road <br /> Manteca,CA 95336 <br /> (209) 982-4298, Fax(209) 982-1009 <br /> During the third quarter 2009 monitoring period,methane concentrations did not exceed <br /> the regulatory limit of five percent in perimeter soil-pore gas probes at the Forward Unit. <br /> Forward continues to install additional landfill gas extraction wells(as needed),and <br /> makes regular adjustments to the landfill gas extraction system to optimize efficiency of <br /> the landfill gas extraction system. <br /> Groundwater quality conditions beneath the Austin Unit during the third quarter 2009 <br /> monitoring period are generally similar to historical results. CLs were exceeded in DMP <br /> wells AMW-6,AMW-7,AMW-13, and AMW-14, and with the exception of the barium <br /> concentration measured in well AMW-14, none of the CL exceedances exhibited <br /> statistically significant increasing trends. Of note, the barium concentration measured in <br /> well AMW-14(0.24 mg/L)is similar to the historical results measured in this well and is <br /> well below the California primary drinking water standard(I mg/Q. In the CAP wells, <br /> trend analyses are performed instead of comparison to CLs. During the current <br /> monitoring period,one or more statistically significant increasing trends were noted for <br /> VOC constituents in CAP wells AMW-1, AMW-10,AMW-1 9, and AMW-I 913R,while <br /> one or more decreasing VOC trends were noted in CAP wells AMW-1, AMW-4, AMW- <br /> 10, and AMW-11. The increasing vinyl chloride and/or cis-1,2-DCE trends in wells <br /> AMW-I and AMW-10 suggest that natural degradation of VOCs is occurring in the <br /> vicinity of these wells through reductive dechlorinization. <br /> According to the Forward Landfill Operations Manager,weekly standard obsei vations <br /> have been conducted during the reporting quarter. The Forward Landfill Operations <br /> Manager also reported that no surface water was discharged during the reporting period. <br /> I certify under penalty of law, that I have personally examined and am familiar with the <br /> information submitted in this document and all attachments, and that based on my inquiry <br /> of those individuals immediately responsible for obtaining this information,I believe that <br /> the information is true,accurate, and complete. I am aware that there are significant <br /> penalties for submitting false information, including the possibility of fine and <br /> imprisonment. <br /> If you have any questions regarding this report,please call me at(209)982-4298. <br /> Sincerely, <br /> /V1 1 <br /> Don chfield <br /> Environmental Manager <br /> Attachment <br />
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