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National Drinking Water Database


Chromium (total) in South Dakota


Chromium is a metal that pollutes drinking water due to discharge from steel and pulp mills and erosion of natural deposits. [read more]

The Most Polluted Communities in South Dakota

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

Ranked by highest average Chromium (total) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Greenwood Colony
Delmont, SD
801 of 114.9 ppb
(14.9 ppb)
2Long Lake Colony
Westport, SD
801 of 114.8 ppb
(14.8 ppb)
3Castlewood
Castlewood, SD
6661 of 110.2 ppb
(10.2 ppb)
4South Shore
South Shore, SD
1801 of 110.05 ppb
(10.05 ppb)
5Dakota Dunes Cid
Dakota Dunes, SD
2,7501 of 19.7 ppb
(9.7 ppb)
6Elk Point
Elk Point, SD
1,7141 of 17.9 ppb
(7.9 ppb)
7Southbrook Estates
Brookings, SD
581 of 17.5 ppb
(7.5 ppb)
8Valley View Estates
Sioux Falls, SD
2501 of 17.3 ppb
(7.3 ppb)
9Canton
Canton, SD
3,1101 of 17.1 ppb
(7.1 ppb)
10Hermosa-New System
SD
4671 of 16 ppb
(6 ppb)

Health Based Limits for Chromium (total)

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.100 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.100 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.100 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.1000 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.1000 ppb

Violation Summary for Chromium (total) in South Dakota

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

Violation TypeNumber of Violations
Failure to monitor regularly2