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2900 - Site Mitigation Program
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PR0542310
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WORK PLANS
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Last modified
11/19/2024 10:20:01 AM
Creation date
9/3/2019 11:40:02 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
WORK PLANS
RECORD_ID
PR0542310
PE
2950
FACILITY_ID
FA0024297
FACILITY_NAME
SAN JOAQUIN LUMBER COMPANY
STREET_NUMBER
455
Direction
E
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
Zip
95376
APN
23337007
CURRENT_STATUS
01
SITE_LOCATION
455 E ELEVENTH ST
P_LOCATION
03
QC Status
Approved
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EHD - Public
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Health and Safety Plan <br /> 455 E 11th St <br /> Tracy,California <br /> 9.0 AIR MONITORING <br /> Air monitoring will be conducted during intrusive activities as the potential exists to contact soil <br /> impacted with VOCs.The work environment will be monitored using a photoionization detector <br /> (PID).Total organic vapor readings will be taken in the breathing zone approximately once per <br /> half hour or more frequently as site conditions warrant. <br /> 9.1 Direct Reading Instruments <br /> 9.1.1 Photoionization Detector <br /> A PID will be used to determine the presence and concentration of organic vapor. Contaminants <br /> such as TPH,VOCs and some SVOCs are detectable with a PID. Air monitoring and actions will <br /> be implemented identified in 9.2 below. <br /> 9.2 Monitoring Strategy <br /> Inhalation is one of the primary routes of exposure for TPH,VOCs and SVOCs.The following <br /> types of air monitoring were selected based on known site conditions and background <br /> information documented in the work plan. <br /> 9.2.1 Total Organic Vapor Monitoring <br /> During intrusive and remediation activities, VOCs and SVOCs could potentially become airborne <br /> and result in exposure to employees. When intrusive activities are being conducted or when <br /> known or suspected contaminated soils or groundwater are encountered,total organic vapors <br /> will be monitored with a PID or a similar device. <br /> If the PID detects total organic vapors at concentrations greater than 10 ppm,then sustained for <br /> at least 1 minute, air-purifying respirators will be worn. If the PID readings exceed 100 ppm <br /> sustained (for greater than 1 minute), all work will be stopped, and on-site personnel wearing C <br /> Level PPE will try to identify the source of the contaminants. On-site personnel wearing C Level <br /> PPE should try to identify the source of the contaminants once readings fall to below 100 ppm. <br /> Appendices Terraphase Engineering Inc. <br />
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