National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
EPTC (Eptam)
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
EPTC (Eptam, S-Ethyl N,N-dipropylthiocarbamate) is an herbicide used as a soil fumigant for corn and other crops for the control of grassy, perennial and broadleaf weeds.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 1 |
- |
- |
| People Served | 2,575 |
- |
- |
Health Concerns for EPTC (Eptam):
- Developmental/reproductive toxicity
- Occupational hazards
- Organ system toxicity (non-reproductive)
- Cancer
EPTC (Eptam) Exposure by State
Water utilities in 1 states have reported detecting EPTC (Eptam) in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with EPTC (Eptam) contamination | |
|---|---|---|
| Systems | Population | |
| Washington | 1 | 2,575 |
| Total | 1 | 2,575 |
The Most Polluted Communities
1 water utilities reported detecting EPTC (Eptam) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average EPTC (Eptam) level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | City of Warden Warden, WA | 2,575 | 1 of 1 | 0.2 ppb (0.2 ppb) |
Health Based Limits for EPTC (Eptam)
| Standard | Description | Level |
|---|---|---|
| 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. | 200 ppb |
Testing Summary for EPTC (Eptam)
| Are tests routinely required for EPTC (Eptam) by federal law? | No |
| Water suppliers reporting tests for EPTC (Eptam) (2004-2009): | 1,220 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.3 per year |
Developmental/reproductive toxicity
| Type of concern: | Reference: |
| Possible human developmental toxicant | California EPA Proposition 65 |
| Human developmental toxicant - strong evidence | Proposition 65 List of Carcinogens |
| Limited evidence of reproductive toxicity | US EPA, 1788 |
Occupational hazards
| Type of concern: | Reference: |
| Allowed workplace exposures restricted to low doses | European Union - Classification & Labelling |
Organ system toxicity (non-reproductive)
| Type of concern: | Reference: |
| Classified as toxic or harmful | European Union - Classification & Labelling |
| Limited evidence of cardiovascular or blood toxicity | US EPA, 1788 |
| One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient) | EPA Toxic Release Inventory PBTs |
Cancer
| Type of concern: | Reference: |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Genetika (Moscow) 1986 |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| European Union - Classification & Labelling | EPTC | •Harmful •Harmful if swallowed |
| EPA Toxic Release Inventory PBTs | S-ETHYL ESTERCARBAMOTHIOIC ACID, DIPROPYL- | •Toxic, U.S. Environmental Protection Agency Toxics Release Inventory programs |
| California EPA Proposition 65 | ETHYL DIPROPYLTHIOCARBAMATE | •Developmental toxin: California Proposition 65 |
| US EPA, 1788 | ETHYL DIPROPYLTHIOCARBAMATE | •Cardiovascular or blood toxicity hazards: suspected |
| US EPA, 1788 | ETHYL DIPROPYLTHIOCARBAMATE | •Reproductive toxicity hazards: suspected |
| Proposition 65 List of Carcinogens | ETHYL DIPROPYLTHIOCARBAMATE | •Developmental toxicity hazards: recognized |
| RTECS®- Genetika (Moscow) 1986 | EPTC | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Escherichia coli ) |
references
| government/industry list/academic study | reference |
| European Union - Classification & Labelling | CPS&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. |
| EPA Toxic Release Inventory PBTs | EPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule. |
| California EPA Proposition 65 | California EPA (California Environmental Protection Agency). 9/2008. Office of Environmental Health Hazard Assessment. Safe Drinking Water and Toxic Enforcement Act of 1986. Chemicals known to the State to cause cancer or reproductive toxicity. |
| Scorecard.org Toxicity Information | US EPA. Addition of Certain Chemicals; Toxic Chemical Release Reporting; Community Right to Know. Proposed and Final Rules. 59 Federal Register 1788 (Jan 12, 1994); 59 Federal Register 61432 (November 30, 1994). Summarized in Hazard Information on Toxic Chemicals Added to EPCRA Section 313 Under Chemical Expansion. http://www.epa.gov/tri/chemical/hazard_cx.htm |
| Scorecard.org Toxicity Information | US EPA. Addition of Certain Chemicals; Toxic Chemical Release Reporting; Community Right to Know. Proposed and Final Rules. 59 Federal Register 1788 (Jan 12, 1994); 59 Federal Register 61432 (November 30, 1994). Summarized in Hazard Information on Toxic Chemicals Added to EPCRA Section 313 Under Chemical Expansion. http://www.epa.gov/tri/chemical/hazard_cx.htm |
| Scorecard.org Toxicity Information | Proposition 65 List of Carcinogens (July 2004) can be obtained from http://www.oehha.ca.gov/prop65/prop65_list/Newlist.html. |
| RTECS®- Genetika (Moscow) 1986 | RTECS®- Genetika (Moscow). For English translation, see SOGEBZ. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) No.1- 22,2416,1986 |
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