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National Drinking Water Database


Thallium (total) in New Mexico


Thallium is a highly toxic metal that contaminates the environment due to leaching from ore-processing sites, discharge from electronics, glass, and drug factories and historical use as rodenticide [read more]

The Most Polluted Communities in New Mexico

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

Ranked by highest average Thallium (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Hidden Valley Ranch
Deming, NM
351 of 10.67 ppb
(0.67 ppb)
2Las Alturas Estates
Las Cruces, NM
6501 of 10.58 ppb
(0.58 ppb)
3Talavera Mdwca
Las Cruces, NM
1571 of 20.58 ppb
(0 to 1.15 ppb)
4New Mexico Tech, Playas Facility
Playas, NM
651 of 10.47 ppb
(0.47 ppb)
5DE LA TE Mobile Manor
Mesilla Park, NM
1571 of 10.46 ppb
(0.46 ppb)
6High Valley Water Users Association
Vado, NM
711 of 10.42 ppb
(0.42 ppb)
7Sunlit Hills Water System
Santa Fe, NM
9901 of 20.42 ppb
(0 to 0.83 ppb)
8Westwinds Mobile Home Park
Alamogordo, NM
1651 of 10.41 ppb
(0.41 ppb)
9Miami Water Users Association
Miami, NM
1501 of 30.4 ppb
(0 to 1.21 ppb)
10Rincon Water Consumers Co-Op
Rincon, NM
5701 of 10.39 ppb
(0.39 ppb)

Health Based Limits for Thallium (total)

StandardDescriptionLevel
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.0.1 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.0.24 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.0.5 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.0.5 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.2 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.2 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.7 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.7 ppb

Violation Summary for Thallium (total) in New Mexico

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in New Mexico since 2004

Violation TypeNumber of Violations
Failure to monitor regularly2