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EWG Statement, 03/10/2008
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Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant. Aldicarb sulfone is a insecticide used on various crops. No information on potential health impacts for Aldicarb sulfone was
identified in standard government and academic sources. Sources of Aldicarb sulfone:  | Agriculture (pesticides, fertilizer, factory farms) |
An Environmental Working Group analysis of Aldicarb sulfone tests reported by 15,288 public water suppliers in 38 states shows that between 1998 and 2003, 162 thousand people in 21 communities drank water contaminated with Aldicarb sulfone. In 8 of these communities, tap water was contaminated at levels above health-based thresholds. Aldicarb sulfone remains unregulated in tap water, without a maximum legal limit. Exposure Summary 162,099 | People drinking water contaminated with Aldicarb sulfone | 21 | Communities served water contaminated with Aldicarb sulfone | 30,259 | People drinking water contaminated with Aldicarb sulfone over health based limits | 8 | Communities served water with Aldicarb sulfone above health based limits |
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Table. Aldicarb sulfone Exposure by State30 thousand Americans in 2 states were served tap water contaminated with Aldicarb sulfone at levels above health-based limits between 1998 and 2003. Table. The most polluted communities30,000 Americans in 8 communities were served tap water contaminated with Aldicarb sulfone above health based limits between 1998 and 2003 Ranked by highest average Aldicarb sulfone level | Rank | System
| Population Served
| Positive test results of total reported tests
| Average Level
(Range) |
|---|
| 1 | Harvest Moon Mutual Water Company
Bakersfield, CA | 180 | 1 of 1 | 88 ppb
(88 to 88 ppb) | | 2 | Krista Mutual Water Company
Frazier Park, CA | 530 | 1 of 1 | 87 ppb
(87 to 87 ppb) | | 3 | Gooselake Water Company
Bakersfield, CA | 102 | 1 of 1 | 84 ppb
(84 to 84 ppb) | | 4 | Bonanza Farms Water System
Bakersfield, CA | 60 | 1 of 1 | 83 ppb
(83 to 83 ppb) | | 5 | Mojave Pud
Mojave, CA | 4,500 | 1 of 1 | 83 ppb
(83 to 83 ppb) | | 6 | Stallion Springs Csd
Tehachapi, CA | 1,800 | 2 of 3 | 65.67 ppb
(0 to 100 ppb) | | 7 | City of Wasco Water
Wasco, CA | 21,263 | 1 of 2 | 38.5 ppb
(0 to 77 ppb) | | 8 | Town of Sparta Water
Sparta, NC | 1,824 | 1 of 15 | 1.21 ppb
(0 to 18.1 ppb) |
Health based limits for Aldicarb sulfone
| Health Limit | Limit Value | Limit Description |
|---|
| Children's health-based limit for 1-day exposure | 10 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 | 10 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. | | Drinking Water Equivalent Level | 40 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 Aldicarb sulfone Water suppliers report an average of 0.4 Aldicarb sulfone tests per year. 24,463 water suppliers failed to report
any Aldicarb sulfone tests at all. | Are tests routinely required for Aldicarb sulfone by federal law? | No | | Water suppliers reporting tests for Aldicarb sulfone (1998-2003): | 15,288 of 39,751 | | Average testing rate for water supplier reporting tests (1998-2003): | 0.4 per year |
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Aldicarb sulfone Violations Because Aldicarb sulfone 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 Aldicarb sulfone, and any level is legal in tap water.
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