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National Drinking Water Database

National Drinking Water Database - Chemical Contaminants

Aroclor 1016

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

Aroclor 1016 is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits. [read more]

Found above
health guidelines
Found above
legal limit
Water utilities
People Served

Health Concerns for Aroclor 1016:

Aroclor 1016 Exposure by State

Water utilities in 1 states have reported detecting Aroclor 1016 in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Aroclor 1016 contaminationWater suppliers reporting Aroclor 1016 above health-based limits

The Most Polluted Communities

1 water utilities reported detecting Aroclor 1016 in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Aroclor 1016 level

RankSystem Population Served Positive test results of total reported tests Average Level
1Artesian Water Company
Newark, DE
201,0001 of 83< 0.01 ppb
(0 to 0.17 ppb)

Health Based Limits for Aroclor 1016

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.0 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.0.5 ppb
Health-Based Screening LevelA 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.0.5 ppb

Testing Summary for Aroclor 1016

Are tests routinely required for Aroclor 1016 by federal law?Yes
Water suppliers reporting tests for Aroclor 1016 (2004-2009):6,232 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.3 per year

Violation Summary for Aroclor 1016

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards for Aroclor 1016 since 2004

Maximum Contaminant Level Exceedance Violations0
Monitoring Violations76
Reporting Violations0


Type of concern: Reference:
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Toxicology and Applied Pharmacology 2003

Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
RTECS®- Toxicology and Applied Pharmacology 2003POLYCHLORINATED BIPHENYL (AROCLOR 1016)• mutagenic - Positive mutation assay: DNA Adduct ( human lvr)


government/industry list/academic study reference
RTECS®- Toxicology and Applied Pharmacology 2003RTECS®- Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 188,81,2003

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