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ARCHIVED REPORTS_2012_3
Environmental Health - Public
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ARCHIVED REPORTS_2012_3
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Last modified
7/17/2020 3:53:42 PM
Creation date
7/3/2020 10:56:59 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
4400 - Solid Waste Program
File Section
ARCHIVED REPORTS
FileName_PostFix
2012_3
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
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FilePath
\MIGRATIONS\SW\SW_4433_PR0440005_9999 AUSTIN_2012_3.tif
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EHD - Public
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In the case of the •no'n-dedicated pump, it is lowered into the well and then acfivat& <br /> (power from "the controller box is regulated which controls the discharge rate of the <br /> centrifugal purge pump), In the case of a well with a dedicated'pump, the pDeumatic <br /> controller box is connected to the dedicated pump (some wells have special high-rate <br /> purge pumps used only for purging, these can be identified by the fittings on the cap). A <br /> dedicated a tube (kept locked at the well head in a protective •bag) is then <br /> attached to the discharge fittiizg on the using cap. The Controller is then turned on <br /> and <br /> adjusted to reach the desired purge rate. <br /> Note: In all cases where gasoline powered generator or compressors arc used, they ale to <br /> be placed at least ten feet downwind of the well being sampled. <br /> 3. .During purging, field parameters (pH, electrical conductivity, turbidity, and temperabIte) <br /> will be monitored- Parameter measurrcmdnts will be recorded on Purge and Sample Logs- <br /> In addition field observations also will be made-and recorded.on the•Purge and-Sample.- <br /> Logs. Stich observations ineluderflow rates;-votume-purged, color,odor,bubbling or-any <br /> bthe,,rnogtable observations. An example of a Purge Characterization and Sample Log is <br /> attached. <br /> 6. Purging. wall.continue until stable parameter readings are obtained- pH is considered <br /> stable if the readings do.not vary by greater than 0.1 pH unit- Tcn3peraturc is considered <br /> stable if it does not vary by more that one degree Celsius- Conductivity and turbidity arc <br /> considered stable if they do not vary by greater than--lova- Field parameters-will be <br /> repeated at approximate five gallon intervals. A minimuru of three well volumes of water <br /> vrM be removed from each well. The final,stable, values will be recorded to be usexi in <br /> the annual report. <br /> Sample Collection <br /> SamAles will.-be collected as soon as possible after pig is completed. Laboratory-suPPlicd <br /> contUnas vdll be used to hold the.water samples_ Samples to be analyzed for volatile,organic <br /> constiuients will be collected first Depending on.the well, Samples win be collected-with either <br /> dedicated pumps or disposable baffers (a-new factory wrapped baiter willbe used at cath well). <br /> In,tire. case of dcdicZtcd pumps, the pump raze will be adJ=ted so that the sample will not be <br /> agi as it is collected in sample bottles. When bailers are usea, they will be lowatd slowly <br /> into thewdll so not to disturb the water. The sample will be decanted into the bottles slowly with <br /> 4n949-F0IW t o A4 Judy 14,20W <br /> Conti&2floo xxaa;hr_ <br />
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