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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Glyphosate


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

Glyphosate is one of the most commonly used herbicides in the U.S., and is applied in agriculture, forestry and on lawns and roadsides. [read more]

 
Detected
Found above
health guidelines
Found above
legal limit
States
6
-
-
Water utilities
12
-
-
People Served
650,793
-
-

Health Concerns for Glyphosate:


Glyphosate Exposure by State

Water utilities in 6 states have reported detecting Glyphosate in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Glyphosate contamination
SystemsPopulation
Kentucky2282,714
Florida5232,256
California2108,903
Indiana126,152
Pennsylvania1618
Oregon1150
Total12650,793

The Most Polluted Communities

12 water utilities reported detecting Glyphosate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Glyphosate level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Bendersville Water Co
Bendersville, PA
6181 of 418.75 ppb
(0 to 75 ppb)
2Inglis Water Dept.
Inglis, FL
1,5001 of 615.83 ppb
(0 to 95 ppb)
3Imperial Irrigation District
Imperial, CA
3,3031 of 28.25 ppb
(0 to 16.5 ppb)
4Rimrock West Imprvmnt Dist
Redmond, OR
1501 of 47.5 ppb
(0 to 30 ppb)
5City of Bakersfield
Bakersfield, CA
105,6001 of 84 ppb
(0 to 32 ppb)
6Florida City
Florida City, FL
9,4451 of 33.33 ppb
(0 to 10 ppb)
7City of Homestead
Homestead, FL
39,0001 of 31.67 ppb
(0 to 5 ppb)
8City of Hallandale Beach
Hallandale Beach, FL
40,0001 of 71.43 ppb
(0 to 10 ppb)
9Bargersville Water Department
Bargersville, IN
26,1521 of 71.4 ppb
(0 to 9.8 ppb)
10Pcud-West
New Port Richey, FL
142,3111 of 21.37 ppb
(0 to 2.73 ppb)

Health Based Limits for Glyphosate

StandardDescriptionLevel
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.700 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.700 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.900 ppb
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.20000 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.20000 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.70000 ppb

Testing Summary for Glyphosate

Are tests routinely required for Glyphosate by federal law?Yes
Water suppliers reporting tests for Glyphosate (2004-2009):10,181 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.4 per year

Violation Summary for Glyphosate

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards for Glyphosate since 2004

Maximum Contaminant Level Exceedance Violations0
Monitoring Violations520
Reporting Violations0

Developmental/reproductive toxicity

Type of concern: Reference:
Human developmental toxicant - moderate evidence CHE Toxicant and Disease Database
Limited evidence of developmental toxicity CHE Toxicant and Disease Database
Limited evidence of reproductive toxicity Frazier , L, 1998

Organ system toxicity (non-reproductive)

Type of concern: Reference:
Limited evidence of eye toxicity European Union - Classification & Labelling
Classified as not expected to be potentially toxic or harmful Environment Canada Domestic Substance List

Cancer

Type of concern: Reference:
Cancer - limited evidence CHE Toxicant and Disease Database
Cancer - not classifiable/not likely to be human carcinogen EPA Integrated Risk Information System (IRIS)
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Mutation Research 1998
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Toxicology Letters 2004
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Environmental and Molecular Mutagenesis 2004
One or more in vitro tests non-mammalian cells show positive mutation results RTECS®- Environmental and Molecular Mutagenesis 2000

Neurotoxicity

Type of concern: Reference:
Limited evidence of nervous system toxicity CHE Toxicant and Disease Database

Irritation (skin, eyes, or lungs)

Type of concern: Reference:
Classified as irritant European Union - Classification & Labelling

Ecotoxicology

Type of concern: Reference:
Wildlife and environmental toxicity European Union - Classification & Labelling
Not suspected to be an environmental toxin Environment Canada Domestic Substance List

Persistence and bioaccumulation

Type of concern: Reference:
Not suspected to be persistent Environment Canada Domestic Substance List
Not suspected to be bioaccumulative Environment Canada Domestic Substance List



Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
European Union - Classification & LabellingGLYPHOSATE•Irritant (eyes, skin, or lungs)
•Risk of serious damage to eyes
•Dangerous for the environment
•Toxic to aquatic organisms
Environment Canada Domestic Substance ListGLYCINE, N-(PHOSPHONOMETHYL)-•This chemical was NOT flagged by CEPA for further attention.
EPA Integrated Risk Information System (IRIS)GLYPHOSATE•Group D: Not classifiable as to human carcinogenicity (EPA classification)
National Library of Medicine HazMapGLYPHOSATE
Frazier , L, 1998GLYPHOSATE•Reproductive toxicity hazards: suspected
RTECS®- Environmental and Molecular Mutagenesis 2000GLYPHOSATE• mutagenic - Positive mutation assay: (Drosophila melanogaster )
RTECS®- Environmental and Molecular Mutagenesis 2004GLYPHOSATE• mutagenic - Positive mutation assay: DNA Damage ( human oth)
RTECS®- Mutation Research 1998GLYPHOSATE• mutagenic - Positive mutation assay: Cytogenetic Analysis (cattle lym)
• mutagenic - Positive mutation assay: other mutation test systems (cattle lym)
• mutagenic - Positive mutation assay: Sister Chromatid Exchange (cattle lym)
RTECS®- Toxicology Letters 2004GLYPHOSATE• mutagenic - Positive mutation assay: DNA Damage ( human fbr)



references

government/industry list/academic study reference
European Union - Classification & LabellingCPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
Environment Canada Domestic Substance ListEC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
EPA Integrated Risk Information System (IRIS)EPA (U.S. Environmental Protection Agency). 2008. Integrated Risk Information System (IRIS). Evidence for human carcinogenicity based on 1986-2005 guidelines.
National Library of Medicine HazMapNLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents.
Scorecard.org Toxicity InformationFrazier , L. and M. L. Hage (eds.). Reproductive Hazards of the Workplace, Wiley Europe, 1998. Table 10 (Partial List of Reproductive Toxicants) available at http://www.pharmacy.ohio-state.edu/homepage/safety/chemhygiene_table_repro.pdf.
RTECS®- Environmental and Molecular Mutagenesis 2000RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 36,40,2000
RTECS®- Environmental and Molecular Mutagenesis 2004RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 44,179,2004
RTECS®- Mutation Research 1998RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 403,13,1998
RTECS®- Toxicology Letters 2004RTECS®- Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 147,35,2004

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