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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Picloram


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

Picloram is an herbicide that may contaminate drinking water sources due to runoff from applications to pasture, rangeland and rights-of-way. [read more]

 
Detected
Found above
health guidelines
Found above
legal limit
States
15
-
-
Water utilities
48
-
-
People Served
1,572,824
-
-

Health Concerns for Picloram:


Picloram Exposure by State

Water utilities in 15 states have reported detecting Picloram in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Picloram contamination
SystemsPopulation
North Carolina9817,545
Florida6251,027
Delaware1201,000
Indiana3141,928
Wisconsin747,936
Massachusetts344,350
Maryland319,259
Ohio116,500
Illinois113,535
California26,100
Oregon25,027
Montana53,827
New Mexico33,718
New York1800
Michigan1272
Total481,572,824

The Most Polluted Communities

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

Ranked by highest average Picloram level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Graceland Village
Warsaw, IN
1104 of 83.1 ppb
(0 to 9.4 ppb)
2WI Public Service Corp Weston 1 & 2
Rothschild, WI
501 of 21.2 ppb
(0 to 2.4 ppb)
3Evergreen Mobile Home Community
Battle Creek, MI
2723 of 31.17 ppb
(0.5 to 2 ppb)
4Sunset Bay S/D
Mooresville, NC
534 of 71.14 ppb
(0 to 3.1 ppb)
5Town of Plains
Plains, MT
1,3405 of 60.78 ppb
(0 to 1.4 ppb)
6San Lucas Wd
San Lucas, CA
5001 of 20.5 ppb
(0 to 1 ppb)
7Wood Dale
Wood Dale, IL
13,5351 of 50.38 ppb
(0 to 1.9 ppb)
8Alliant-Columbia Energy Center
Portage, WI
1701 of 20.3 ppb
(0 to 0.6 ppb)
9City of Vale
Vale, OR
1,9971 of 20.25 ppb
(0 to 0.5 ppb)
10Shirley Water District
Shirley, MA
3,8501 of 40.15 ppb
(0 to 0.6 ppb)

Health Based Limits for Picloram

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.500 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.500 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.500 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.700 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

Testing Summary for Picloram

Are tests routinely required for Picloram by federal law?Yes
Water suppliers reporting tests for Picloram (2004-2009):20,163 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.4 per year

Violation Summary for Picloram

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

Maximum Contaminant Level Exceedance Violations0
Monitoring Violations1,772
Reporting Violations0

Occupational hazards

Type of concern: Reference:
Allowed workplace exposures restricted to moderate doses RTECS®- TLV/BEI,2007

Cancer

Type of concern: Reference:
One or more in vitro tests non-mammalian cells show positive mutation results RTECS®- Tsitologiya i Genetika 1984
One or more in vitro tests non-mammalian cells show positive mutation results RTECS®- Mutation Research 1978



Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
RTECS®- TLV/BEI,2007PICOLINIC ACID, 4-AMINO-3,5,6-TRICHLORO-• occupationally related - ACGIH TLV (human TWA)
RTECS®- Mutation Research 1978PICOLINIC ACID, 4-AMINO-3,5,6-TRICHLORO-• mutagenic - Positive mutation assay: Mutation in Micro-organism (other micro-organisms )
RTECS®- Tsitologiya i Genetika 1984PICOLINIC ACID, 4-AMINO-3,5,6-TRICHLORO-• mutagenic - Positive mutation assay: Mutation in Micro-organism (Saccharomyces cerevisiae )



references

government/industry list/academic study reference
RTECS®- TLV/BEI,2007RTECS®- TLV/BEI,2007
RTECS®- Mutation Research 1978RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 57,277,1978
RTECS®- Tsitologiya i Genetika 1984RTECS®- Tsitologiya i Genetika. Cytology and Genetics. For English translation, see CYGEDX. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 18,455,1984

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