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Water Quality Goals Database- Water Quality Goals for Naphthalene • Page 1 of 4 <br /> New Search Return to Previous Search Results Print <br /> Chemical Name: Naphthalene <br /> Chemical Type: Organic Chemical Abstracts Service Registry Number: 91-20-3 <br /> S non ms: null <br /> ThresholdThres hold Units Foot FooTAdopti <br /> Source & References 12 if not Notes notel not <br /> (U91L) u IL u IL <br /> Drinkina Water Standards -Maximum <br /> Contaminant Levels MCLS <br /> California Dept of Public Health <br /> Primary MCL <br /> health based +technology & economics <br /> Secondary MCL <br /> (taste & odor or welfare-based) <br /> U.S. Environmental Protection Agency <br /> USEPA <br /> Primary MCL <br /> (health based +technology &economics <br /> Secondary MCL <br /> taste &odor or welfare-based <br /> MCL Goal <br /> level for no adverse health effects <br /> California Public Health Goal or PHG <br /> Cal/EPA, OEHHA <br /> California Notification Levels 17 170 191 4/1/20 <br /> (Department of Public Health <br /> ThresholdThreshold Units Foot Foot Adopti <br /> Source& References 1 2 if not Notes notel note Date <br /> (u/L u IL u IL <br /> Drinking Water Health Advisories or <br /> Suggested No-Adverse-Response Levels <br /> for non-cancer health effects <br /> USEPA IRIS Reference Dose (RfD) 140 9/17/1E <br /> as a drinking water level* <br /> USEPA Health Advisory 100 1 166 1 IV/17/1 <br /> National Academy of Sciences Health <br /> Advisory <br /> One-in-a-Million Incremental Cancer Risk <br /> Estimates for Drinking Water <br /> Cal/EPA Cancer Potency Factor <br /> as a drinking water level** <br /> USEPA Integrated Risk Information System 68 197 7/7/20 <br /> (IRIS) <br /> USEPA Health AdvisoryI 166 9/17/1f <br /> National Academy of Sciences Health <br /> Advisory <br /> California Proposition 65 Safe Harbor Level <br /> as a drinkinq water level*** <br /> No Significan Risk Level 2.9 188 9/12/2( <br /> one-in-100,000 cancer risk <br /> Maximum Allowable Dose Level <br /> for Re roductive Toxicity <br /> Threshold Threshold Units Foot Foot Adopti <br /> Source& References 1 2 if not Notes notel note Date <br /> u /L u /L u IL <br /> http://www.waterboards.ca.gov:8080/W aterQualityGoals/W Q_view.j sp?backUrl=naphthal... 9/18/2013 <br />