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TABLE 1
<br />Maximum Concentrations and Allowable Chemical Exposure Limits and Exposure Symptoms
<br />
<br />PEL (a)STEL (b)TLV (c)
<br />Soil
<br />(mg/kg)
<br />Groundwater
<br />(ug/L)(ppmv)(ppmv)(ppmv)
<br />Lathrop, California
<br />Former Pilkington North America Site
<br />ROUTE OF ENTRY TARGET ORGANSACUTE EXPOSURE SYMPTOMSCHEMICAL
<br />Maximum Concentrations
<br />Polychlorinated Byphenyl Compounds (PCBs)
<br />Arochlor 1254 ----0.5
<br />mg/m3
<br />NL 0.5
<br />mg/m3
<br />Inhalation, absorption,
<br />ingestion, contact
<br />Irritation eyes, chloracne, liver damage, reproductive effects,
<br />(potential occupational carcinogen)
<br />NL
<br />Arochlor 1260 ----NL NL NL Inhalation, absorption,
<br />ingestion, contact
<br />Irritation eyes, chloracne, liver damage, reproductive effects,
<br />(potential occupational carcinogen)
<br />NL
<br />Organic Pesticide Compounds
<br />4,4'-DDD ----NL NL NL NL NL NL
<br />4,4'-DDE ----NL NL NL NL NL NL
<br />4,4'-DDT ----1
<br />mg/m3
<br />NL 1
<br />mg/m3
<br />Inhalation, absorption,
<br />ingestion, contact
<br />Irritation eyes, skin, paresthesia, tongue, lips, face, tremor,
<br />apprehension, dizziness, confusion, malaise, headache,
<br />fatigue, convulsions, paresis hands, vomiting,
<br />(potential occupational carcinogen)
<br />Eyes, skin, central nervous
<br />system, kidneys, liver,
<br />peripheral nervous system
<br />Petroleum Hydrocarbon Compounds
<br />Diesel 24,200 1,860,000 NL NL 100
<br />mg/m3
<br />Inhalation, absorption,
<br />ingestion, contact
<br />Expected to be similar to gasoline NL
<br />Gasoline 1,570 --300 500 300 Inhalation, absorption,
<br />ingestion, contact
<br />Irritation eyes, skin, mucous membranes, dermatitis,
<br />headache, fatigue, blurred vision, dizziness, slurred
<br />speech, confusion, convulsions, chemical
<br />pneumonia (aspiration), possible liver,
<br />kidney damage,
<br />(potential occupational carcinogen)
<br />Eyes, skin, respiratory system,
<br />central nervous system, liver,
<br />kidneys, (in animals: liver and
<br />kidney cancer)
<br />Oil (mineral) mist,
<br />particulate
<br />1060 --5
<br />mg/m3
<br />NL 5
<br />mg/m3
<br />Inhalation, contact Irritation eyes, skin, respiratory system Eyes, skin, respiratory system
<br />EKI B90047.00 Page 5 of 9 EKI Environment & Water, Inc.
<br />May 2019
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