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ARCHIVED REPORTS_2014_2
Environmental Health - Public
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ARCHIVED REPORTS_2014_2
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Last modified
7/18/2020 10:43:49 AM
Creation date
7/3/2020 11:06:19 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
4400 - Solid Waste Program
File Section
ARCHIVED REPORTS
FileName_PostFix
2014_2
RECORD_ID
PR0440003
PE
4434
FACILITY_ID
FA0003698
FACILITY_NAME
CORRAL HOLLOW LANDFILL
STREET_NUMBER
31130
STREET_NAME
CORRAL HOLLOW
STREET_TYPE
RD
City
TRACY
Zip
95376
APN
25303010
CURRENT_STATUS
01
SITE_LOCATION
31130 CORRAL HOLLOW RD
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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SJGOV\rtan
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FilePath
\MIGRATIONS\SW\SW_4434_PR0440003_31130 CORRAL HOLLOW_2014_2.tif
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EHD - Public
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statistical software, a decreasing trend is reported in the concentration of Chloride,Nitrate as <br /> Nitrogen, and Sulfate (Table 3). These data are consistent with previous monitoring results. <br /> Six VOCs were reported this quarter, four above the laboratory's practical quantification limit <br /> (PQL) and two below the PQL at"trace"concentrations (Table 1). All VOCs detected in this well <br /> are among the VOCs found in MW-5, generally at lower concentrations. These data support the <br /> conclusion that MW-5 is closer to the source of the VOCs. <br /> Trend analysis of VOC concentrations indicate increasing trends for 1,1-Dichloroethane, <br /> Dichlorodifluoromethane, PCE and Freon 11. Trend analysis also indicated a decreasing trend in <br /> Cis 1,2-Dichlroethene, and TCE this quarter. Trend analysis will continue to be used quarterly to <br /> evaluate concentrations of VOCs in MW-8. <br /> Methylene Chloride,previously repeatedly reported at this well, has not been detected since May <br /> 2012. This indicates improving groundwater quality at this well. <br /> MW-9A (Newly-installed): <br /> This is the ninth quarter in which MW-9A and the other off-site wells were monitored. <br /> Concentrations of all parameters were within established concentration limits where the limits <br /> could be determined (Table 1). <br /> No VOCs were reported at this well this quarter(Table 1). Other than false positives, VOCs have <br /> not been reported in this well since fourth quarter 2012. These data indicate improving water <br /> quality at this well. <br /> A"significantly decreasing"trend is reported by the Sanitas program for turbidity and chloride <br /> this quarter(Table 3). <br /> MW-IOA (Newly-installed,ApparentlyNoLongerimpacted): <br /> Concentrations of all parameters were within established concentration limits where the limits <br /> could be determined(Table 1). <br /> No VOCs were reported at this well this quarter(Table 1). Other than false positives,VOCs have <br /> not been reported in this well since fourth quarter 2013. These data indicate improving water <br /> quality at this well. <br /> A"significantly decreasing"trend is reported by the Sanitas program for EC, chloride, sulfate and <br /> TDS this quarter(Table 3). <br /> MW-11A (Newly-installed,Impacted): <br /> Concentrations of all parameters were within established concentration limits where the limits <br /> could be determined (Table 1). <br /> Three VOCs were reported this quarter, all below the PQL(Table 1). Note that five VOCs were <br /> previously regularly detected in this well. These data indicate improving water quality at this <br /> well. <br /> Corral Hollow Sanitary Landfill 15 Department of Public Works/Solid Waste <br /> 2nd Quarter 2014 Groundwater Monitoring County of San Joaquin—July 15,2014 <br />
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