Know Your Environment. Protect Your Health.

Manganese

Littleton Water Department

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

109

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018317.8 ppb2016ND - 1,590.0 ppb
2019215.1 ppb148ND - 1,220.0 ppb
2020175.7 ppb169ND - 1,260.0 ppb
2021204.6 ppb1811ND - 1,930.0 ppb
2022210.4 ppb1611ND - 1,180.0 ppb
2023234.2 ppb2515ND - 1,760.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Result
2018-02-12ND
2018-03-218.00 ppb
2018-04-2628.0 ppb
2018-04-261,100.0 ppb
2018-04-26178.0 ppb
2018-04-2941.0 ppb
2018-04-291,520.0 ppb
2018-04-2988.0 ppb
2018-05-0143.0 ppb
2018-05-011,590.0 ppb
2018-05-0180.0 ppb
2018-05-0717.0 ppb
2018-05-07ND
2018-06-197.00 ppb
2018-06-191,360.0 ppb
2018-07-0964.0 ppb
2018-09-18192.0 ppb
2018-09-18ND
2018-10-1640.0 ppb
2018-10-16ND
2019-01-02ND
2019-01-08ND
2019-03-14ND
2019-03-2655.0 ppb
2019-05-01ND
2019-05-0123.0 ppb
2019-05-011,220.0 ppb
2019-05-01460.0 ppb
2019-05-3023.0 ppb
2019-06-05110.0 ppb
2019-06-051,070.0 ppb
2019-08-0651.0 ppb
2019-08-06ND
2019-11-20ND
2020-03-11ND
2020-04-27ND
2020-04-286.00 ppb
2020-05-1464.0 ppb
2020-05-261,260.0 ppb
2020-05-2624.0 ppb
2020-05-26394.0 ppb
2020-05-26ND
2020-06-161,010.0 ppb
2020-06-166.00 ppb
2020-09-10ND
2020-09-16ND
2020-11-04ND
2020-11-04ND
2020-12-3011.0 ppb
2020-12-3036.0 ppb
2021-01-12ND
2021-01-127.00 ppb
2021-01-1221.0 ppb
2021-04-05ND
2021-04-051,930.0 ppb
2021-04-057.00 ppb
2021-04-05265.0 ppb
2021-04-05126.0 ppb
2021-04-05ND
2021-04-051,140.0 ppb
2021-04-1259.0 ppb
2021-06-0861.0 ppb
2021-07-27ND
2021-07-27ND
2021-07-2755.0 ppb
2021-10-14ND
2021-10-1411.0 ppb
2021-10-14ND
2022-02-16ND
2022-02-16ND
2022-02-16ND
2022-05-181,180.0 ppb
2022-05-1821.0 ppb
2022-05-18108.0 ppb
2022-05-18107.0 ppb
2022-05-18159.0 ppb
2022-05-18ND
2022-05-18293.0 ppb
2022-05-18999.0 ppb
2022-05-18122.0 ppb
2022-05-1828.0 ppb
2022-11-0742.0 ppb
2022-11-07308.0 ppb
2022-11-09ND
2023-01-17335.0 ppb
2023-01-17ND
2023-01-1779.0 ppb
2023-05-02900.0 ppb
2023-05-25136.0 ppb
2023-06-16460.0 ppb
2023-06-16107.0 ppb
2023-06-1633.0 ppb
2023-06-16262.0 ppb
2023-06-16ND
2023-06-161,760.0 ppb
2023-06-1610.00 ppb
2023-06-16958.0 ppb
2023-06-16161.0 ppb
2023-06-16144.0 ppb
2023-09-19ND
2023-09-19293.0 ppb
2023-09-19ND
2023-09-21ND
2023-10-03217.0 ppb
2023-10-03ND
2023-10-03ND
2023-12-28ND
2023-12-28ND
2023-12-28ND