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Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant. o-Chlorotoluene is a o-cholorotoluene is a drain pipe solvent, insecticide, bactericide; and is used in pharmaceuticals, synthetic rubber, and dyes.. Potential health impacts associated with o-Chlorotoluene include neurotoxicity, respiratory toxicity, and skin sensitivity. Sources of o-Chlorotoluene:  | Industry |
An Environmental Working Group analysis of o-Chlorotoluene tests reported by 24,841 public water suppliers in 37 states shows that between 1998 and 2003, 103 thousand people in 16 communities drank water contaminated with o-Chlorotoluene. o-Chlorotoluene remains unregulated in tap water, without a maximum legal limit. Exposure Summary 103,421 | People drinking water contaminated with o-Chlorotoluene | 16 | Communities served water contaminated with o-Chlorotoluene |
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Table. o-Chlorotoluene Exposure by State103 thousand Americans in 9 states were served tap water contaminated with o-Chlorotoluene between 1998 and 2003. Table. The most polluted communities103,000 Americans in 16 communities were served tap water contaminated with o-Chlorotoluene between 1998 and 2003 Ranked by highest average o-Chlorotoluene level | Rank | System
| Population Served
| Positive test results of total reported tests
| Average Level
(Range) |
|---|
| 1 | June Lake Public Utility District Villag
June Lake, CA | 330 | 1 of 2 | 12 ppb
(0 to 24 ppb) | | 2 | June Lake P.u.d. - Down Canyon
June Lake, CA | 400 | 1 of 2 | 5 ppb
(0 to 10 ppb) | | 3 | Riverview Mobile Home Park
Gardnerville, NV | 210 | 8 of 10 | 2.36 ppb
(0 to 5.74 ppb) | | 4 | Thomas Cove
Newark, DE | 801 | 1 of 20 | 2.35 ppb
(0 to 47 ppb) | | 5 | Portsmouth Water Works
Portsmouth, NH | 33,000 | 2 of 2 | 2.2 ppb
(2.1 to 2.3 ppb) | | 6 | Mulberry Waterworks
Mulberry, AR | 1,525 | 4 of 10 | 0.94 ppb
(0 to 5.9 ppb) | | 7 | Moab Irrigation District #20
Newman Lake, WA | 1,700 | 1 of 2 | 0.25 ppb
(0 to 0.5 ppb) | | 8 | Nsbu - Point Hope
Barrow, AK | 834 | 2 of 5 | 0.24 ppb
(0 to 0.9 ppb) | | 9 | Hot Springs Waterworks
Hot Springs Nat, AR | 60,000 | 1 of 7 | 0.18 ppb
(0 to 1.26 ppb) | | 10 | Chestnut Grove (willow Grove)
Newark, DE | 933 | 1 of 13 | 0.18 ppb
(0 to 2.3 ppb) |
Next --> Health based limits for o-Chlorotoluene
| Health Limit | Limit Value | Limit Description |
|---|
| Children's health-based limit for 1-day exposure | 2000 ppb | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | | Children's health-based limit for 10-day exposure | 2000 ppb | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | | Lifetime health-based limit, non-cancer risk | 100 ppb | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency. | | Drinking Water Equivalent Level | 700 ppb | A lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency. | Testing Summary for o-Chlorotoluene Water suppliers report an average of 0.6 o-Chlorotoluene tests per year. 14,910 water suppliers failed to report
any o-Chlorotoluene tests at all. | Are tests routinely required for o-Chlorotoluene by federal law? | No | | Water suppliers reporting tests for o-Chlorotoluene (1998-2003): | 24,841 of 39,751 | | Average testing rate for water supplier reporting tests (1998-2003): | 0.6 per year |
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o-Chlorotoluene Violations Because o-Chlorotoluene is unregulated in tap water, no violations are
recorded in EPA's violations database, the Safe Drinking Water Information
System. Under the federal tap water law, water suppliers are not required
to routinely test for o-Chlorotoluene, and any level is legal in tap water.
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