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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Oxamyl (Vydate)


Status: Regulated - EPA has established a maximum legal limit in tapwater for this contaminant.

Oxamyl is a neurotoxic insecticide used on cotton, fruit and vegetable crops (apples, potatoes and tomatoes). [read more]

 
Detected
Found above
health guidelines
Found above
legal limit
States
9
1
-
Water utilities
40
1
-
People Served
1,635,331
20,000
-

Oxamyl (Vydate) Exposure by State

Water utilities in 9 states have reported detecting Oxamyl (Vydate) in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Oxamyl (Vydate) contaminationWater suppliers reporting Oxamyl (Vydate) above health-based limits
SystemsPopulationSystemsPopulation
Florida71,322,990120,000
Delaware12243,02500
Kentucky134,65000
Massachusetts226,03500
Connecticut135,94900
Missouri21,79200
New York180000
Wisconsin16000
New Hampshire13000
Total401,635,331120,000

The Most Polluted Communities

40 water utilities reported detecting Oxamyl (Vydate) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Oxamyl (Vydate) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Lazy Pines Mobile Home Pk/Lowr
Loudon, NH
301 of 11.8 ppb
(1.8 ppb)
2NM Transfer Company Well 3
Neenah, WI
601 of 11.5 ppb
(1.5 ppb)
3Hamilton
Hamilton, MO
1,7501 of 41.15 ppb
(0 to 4.6 ppb)
4Middlebury Terrace Water Supply
Naugatuck, CT
401 of 11 ppb
(1 ppb)
5City of Homestead
Homestead, FL
39,0001 of 30.67 ppb
(0 to 2 ppb)
6Saint Benedict Abbey
Harvard, MA
351 of 30.67 ppb
(0 to 2 ppb)
7Corry Field-Nas
Pensacola, FL
20,0002 of 190.65 ppb
(0 to 12.33 ppb)
8Foxridge Apartments-Well 1
Cheshire, CT
251 of 20.5 ppb
(0 to 1 ppb)
9Waterford Country School, Inc.
Clinton, CT
1801 of 20.5 ppb
(0 to 1 ppb)
10CTWC - Shoreline Region-Sdc Water
Danielson, CT
1401 of 20.5 ppb
(0 to 1 ppb)

Health Based Limits for Oxamyl (Vydate)

StandardDescriptionLevel
Children's health-based limit for 1-day exposureConcentration 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 exposureConcentration 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
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.26 ppb
Drinking Water Equivalent LevelA 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
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.200 ppb
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.200 ppb

Testing Summary for Oxamyl (Vydate)

Are tests routinely required for Oxamyl (Vydate) by federal law?Yes
Water suppliers reporting tests for Oxamyl (Vydate) (2004-2009):18,641 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.4 per year

Violation Summary for Oxamyl (Vydate)

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards for Oxamyl (Vydate) since 2004

Maximum Contaminant Level Exceedance Violations0
Monitoring Violations1,707
Reporting Violations0