National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Aldicarb sulfoxide
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Aldicarb sulfoxide is a groundwater contaminant and neurotoxic metabolite of the insecticide aldicarb used on agricultural crops.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 8 |
1 |
- |
| Water utilities | 28 |
3 |
- |
| People Served | 394,891 |
411 |
- |
Aldicarb sulfoxide Exposure by State
Water utilities in 8 states have reported detecting Aldicarb sulfoxide in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Aldicarb sulfoxide contamination | Water suppliers reporting Aldicarb sulfoxide above health-based limits | ||
|---|---|---|---|---|
| Systems | Population | Systems | Population | |
| New Mexico | 3 | 411 | 3 | 411 |
| Delaware | 12 | 243,025 | 0 | 0 |
| Minnesota | 2 | 56,672 | 0 | 0 |
| California | 1 | 53,903 | 0 | 0 |
| Kentucky | 1 | 34,650 | 0 | 0 |
| Maryland | 5 | 5,188 | 0 | 0 |
| New York | 2 | 898 | 0 | 0 |
| Missouri | 2 | 144 | 0 | 0 |
| Total | 28 | 394,891 | 3 | 411 |
The Most Polluted Communities
28 water utilities reported detecting Aldicarb sulfoxide in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Aldicarb sulfoxide level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Galisteo Mdwca Galisteo, NM | 150 | 1 of 1 | 28.9 ppb (28.9 ppb) |
| 2 | Glorieta Estates Water Co-Op Glorietta, NM | 61 | 1 of 1 | 26.9 ppb (26.9 ppb) |
| 3 | Pendaries Water System Las Vegas, NM | 200 | 1 of 1 | 19.47 ppb (19.47 ppb) |
| 4 | Town of Grantsville Grantsville, MD | 600 | 1 of 2 | 2 ppb (0 to 4 ppb) |
| 5 | Town of Hancock Hancock, MD | 1,921 | 1 of 2 | 2 ppb (0 to 4 ppb) |
| 6 | Sandy Hook Williamsport, MD | 172 | 1 of 2 | 2 ppb (0 to 4 ppb) |
| 7 | EL Rancho Mobile Home Park Frederick, MD | 86 | 1 of 2 | 2 ppb (0 to 4 ppb) |
| 8 | Town of Snow Hill Snow Hill, MD | 2,409 | 1 of 2 | 2 ppb (0 to 4 ppb) |
| 9 | Apple Grove Trailer Park Scottsville, NY | 98 | 1 of 1 | 1 ppb (1 ppb) |
| 10 | Mcwa, Genesee West Rochester, NY | 800 | 1 of 2 | 0.45 ppb (0 to 0.9 ppb) |
Health Based Limits for Aldicarb sulfoxide
| Standard | Description | Level |
|---|---|---|
| Lifetime health-based limit, non-cancer risk | 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. | 7 ppb |
| Health-Based Screening Level | A benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey. | 7 ppb |
| Children's health-based limit for 1-day exposure | 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. | 10 ppb |
| Children's health-based limit for 10-day exposure | 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. | 10 ppb |
| Drinking Water Equivalent Level | 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. | 35 ppb |
Testing Summary for Aldicarb sulfoxide
| Are tests routinely required for Aldicarb sulfoxide by federal law? | No |
| Water suppliers reporting tests for Aldicarb sulfoxide (2004-2009): | 12,438 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.4 per year |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
references
| government/industry list/academic study | reference |
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