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Contaminant <br />Typical Source of Contaminant <br />Health Effects Language' <br />Synthetic Organic Contaminants <br />including Pesticides and Herbicides <br />Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives <br />Dibromochloropropane <br />Banned nematocide that may still be present in <br />Some people who use water containing DBCP in excess of the MCL over many years may <br />(DBCP) <br />soils due to runoff/leaching from former use on <br />experience reproductive difficulties and may have an increased risk of getting cancer. <br />Total Dissolved Solids (TDS) <br />soybeans, cotton, vineyards, tomatoes, and tree <br />Specific Conductance <br />Substances that form ions when in water; seawater influence <br />fruit <br />I Runoff/leaching from natural deposits; seawater influence <br />Ethylene dibromide (EDB) <br />Discharge from petroleum refineries; <br />Some people who use water containing ethylene dibromide in excess of the MCL over many <br />underground gas tank leaks; banned <br />years may experience liver, stomach, reproductive system, or kidney problems, and may have <br />nematocide that may still be present in soils <br />an increased risk of getting cancer. <br />due to runoff and leaching from grain and fruit <br />crops <br />1 -California Code of Regulations, Title 22, Appendix 64465-D. Health Effects Language <br />Regulated Contaminants with SECONDARY DRINKING WATER STANDARDS (a) <br />Monitoring Required by Section 64449, Chapter 15, Title 22, California Code of Regulations <br />Contaminant <br />Typical Source of Contaminant <br />Aluminum <br />Erosion of natural deposits; residual from some surface water treatment processes <br />Copper <br />Internal corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives <br />Foaming Agents (MBAS) <br />Municipal and industrial waste discharges <br />Iron <br />Leaching from natural deposits; industrial wastes <br />Manganese <br />Leaching from natural deposits <br />Total Dissolved Solids (TDS) <br />Runoff/leaching from natural deposits <br />Specific Conductance <br />Substances that form ions when in water; seawater influence <br />Chloride <br />I Runoff/leaching from natural deposits; seawater influence <br />Sulfate <br />I Runoff/leaching from natural deposits; industrial wastes <br />(a) There are no PHGs, MCLGs, or mandatory standard health effects language for these constituents because secondary MCLs are set on the basis of aesthetics. <br />Title 22 Health Effects Page 2 of 2 <br />