The Power of Information

National Drinking Water Database

Selenium (total) in Florida

Selenium is a naturally occurring element that contaminates water due to mining or petrolum refining, fly-ash from coal-burning power plants, and irrigation of arid farmland soils high in selenium. [read more]

The Most Polluted Communities in Florida

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

Ranked by highest average Selenium (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Rodeheaver Boys Ranch
Palatka, FL
702 of 522 ppb
(0 to 60 ppb)
2Dunes Community Development District
Palm Coast, FL
2,2005 of 518.58 ppb
(1.4 to 71.5 ppb)
3Jumper Creek Manor
Bushnell, FL
502 of 213.5 ppb
(9 to 18 ppb)
4Utilities Inc of Hutchinson Island
Stuart, FL
1,0001 of 113 ppb
(13 ppb)
5Fowlers Bluff Wtp
Chiefland, FL
3001 of 111.5 ppb
(11.5 ppb)
6Henderson Mobile Home Park
Deleon Springs, FL
621 of 110.3 ppb
(10.3 ppb)
7Parkview Acres
Zephyrhills, FL
1901 of 110 ppb
(10 ppb)
8Skipper Mhp
Dover, FL
701 of 19 ppb
(9 ppb)
9South Pretty Pond Mhp
Zephyrhills, FL
801 of 19 ppb
(9 ppb)
10Ocud/Lake John Shores Wtr Sys
Oakland, FL
671 of 17.3 ppb
(7.3 ppb)

Health Based Limits for Selenium (total)

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.50 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.50 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.50 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.170 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.200 ppb

Violation Summary for Selenium (total) in Florida

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

Violation TypeNumber of Violations
Failure to monitor regularly2