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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 />Volatile Organic Compounds (VOCs)
<br />cis-1,2-Dichloroethene ----200 NL 200 Inhalation, ingestion,
<br />skin and/or eye contact
<br />Irritation eyes, respiratory system, central nervous system
<br />depression
<br />Eyes, respiratory system,
<br />central nervous system
<br />trans-1,3-
<br />Dichloropropene
<br />----NL NL 1 Inhalation, skin
<br />absorption, ingestion,
<br />skin and/or eye contact
<br />Irritation eyes, skin, respiratory system, eye, skin burns,
<br />lacrimation (discharge of tears), headache, dizziness,
<br />in animals, liver, kidney damage, (potential occupational
<br />carcinogen)
<br />Eyes, skin, respiratory system,
<br />central nervous system, liver,
<br />kidneys
<br />1,2-Dichloroethene ----200 NL 200 Inhalation, ingestion,
<br />contact
<br />Irritation of eyes, respiratory system, central nervous
<br />system depression
<br />Eyes, respiratory system,
<br />central nervous system, liver
<br />Ethanol ----1000 1,000 NL Inhalation, ingestion,
<br />skin and/or eye contact
<br />irritation eyes, skin, nose, headache, drowsiness, lassitude
<br />(weakness, exhaustion), narcosis, cough, liver damage,
<br />anemia, reproductive, teratogenic effects
<br />Eyes, skin, respiratory system,
<br />central nervous system, liver,
<br />blood, reproductive system
<br />Ethylbenzene --1.7 5 NL 20 Inhalation, ingestion,
<br />contact
<br />Irritation of eyes, skin, mucous membranes, headache, dermatitis, narcosis, comaEyes, skin, respiratory system,
<br />central nervous system
<br />4-Ethyltoluene ----NL NL NL NL NL NL
<br />Heptane ----400 500 400 Inhalation, ingestion,
<br />skin and/or eye contact
<br />Dizziness, stupor, incoordination, loss of appetite, nausea,
<br />dermatitis, chemical pneumonitis (aspiration liquid),
<br />unconsciousness
<br />Skin, respiratory system,
<br />central nervous system
<br />Hexane ----50 NL 50 Inhalation, ingestion,
<br />skin and/or eye contact
<br />Irritation eyes, nose, nausea, headache, peripheral
<br />neuropathy: numb extremities, muscle weak,
<br />dermatitis, dizziness, chemical pneumonitis (aspiration liquid)
<br />Eyes, skin, respiratory system,
<br />central nervous system,
<br />peripheral nervous system
<br />Iso-octane ----NL NL NL NL NL NL
<br />Isopropanol ----400 400 200 Inhalation, ingestion,
<br />skin and/or eye contact
<br />Irritation eyes, nose, throat, drowsiness, dizziness, headache,
<br />dry cracking skin, in animals: narcosis
<br />Eyes, skin, respiratory system
<br />Isopropylbenzene
<br />(Cumene)
<br />----50 NL 50 Inhalation, absorption,
<br />ingestion, contact
<br />Irritation of eyes, skin, mucous membranes, dermatitis,
<br />headache, narcosis, coma
<br />Eyes, skin, respiratory system,
<br />central nervous system
<br />Methyl tert butyl ether
<br />(MTBE)
<br />----NL NL NL NL Irritation of upper respiratory tract, kidney damage Upper respiratory tract, kidney
<br />Methylene chloride
<br />(Dichloromethane)
<br />----25 NL 50 Inhalation, absorption,
<br />ingestion, contact
<br />Irritation of eyes, skin, fatigue, weakness, somnolence,
<br />lightheadedness, numbness and tingling of limbs, nausea,
<br />(potential occupational carcinogen)
<br />Eyes, skin, cardiovascular system ,
<br />central nervous system,
<br />(in animals: lung, liver, salivary,
<br />and mammary gland tumors)
<br />EKI B90047.00 Page 2 of 9 EKI Environment & Water, Inc.
<br />May 2019
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