Manganese
Milwaukee Waterworks
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | 0.220 ppb | 2 | 2 | 0.180 ppb - 0.260 ppb |
2017 | 0.971 ppb | 27 | 27 | 0.140 ppb - 3.30 ppb |
2018 | 0.123 ppb | 8 | 2 | ND - 0.520 ppb |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 | Lab ID | Result |
---|---|---|
2014-08-18 | 3085051-52,59,66 | ND |
2014-08-19 | 3086075-76,83,90 | ND |
2014-08-21 | 3088671-72,79,86 | ND |
2014-08-21 | 3088569-70,76,84 | ND |
2015-08-17 | 3302508-09,16,23 | ND |
2015-08-17 | 3302433-34,41,48 | ND |
2015-08-18 | 3303577-78,87,97 | ND |
2015-08-19 | 3304960,63,72,75 | ND |
2016-08-22 | 3528613-14 | 0.180 ppb |
2016-08-22 | 3528601-02 | 0.260 ppb |
2017-07-17 | 3734119-21 | 0.200 ppb |
2017-07-17 | 3734117-18,37 | 0.220 ppb |
2017-07-18 | 3735142-44 | 1.60 ppb |
2017-07-18 | 3735139-41 | 0.720 ppb |
2017-07-18 | 3735136-38 | 0.560 ppb |
2017-07-18 | 3735145-47 | 0.420 ppb |
2017-07-18 | 3735159-61 | 0.280 ppb |
2017-07-18 | 3735148-50 | 2.80 ppb |
2017-07-19 | 3736313-15 | 1.40 ppb |
2017-07-19 | 3736310-12 | 0.430 ppb |
2017-07-19 | 3736319-21 | 1.20 ppb |
2017-07-19 | 3736325-27 | 1.10 ppb |
2017-07-19 | 3736322-24 | 2.40 ppb |
2017-07-19 | 3736316-18 | 0.790 ppb |
2017-07-19 | 3736307-09 | 0.840 ppb |
2017-07-20 | 3737469-71 | 0.680 ppb |
2017-07-20 | 3737466-68 | 0.210 ppb |
2017-07-20 | 3737463-65 | 0.670 ppb |
2017-07-20 | 3737475-77 | 0.400 ppb |
2017-07-20 | 3737472-74 | 0.240 ppb |
2017-07-25 | 3740336-38 | 1.000 ppb |
2017-07-25 | 3740333-35 | 0.140 ppb |
2017-07-25 | 3740327-29 | 2.20 ppb |
2017-07-25 | 3740330-32 | 0.620 ppb |
2017-07-25 | 3740339-41 | 1.000 ppb |
2017-07-25 | 3740324-26 | 0.800 ppb |
2017-07-26 | 3741276-78 | 3.30 ppb |
2018-02-20 | 3876219 | ND |
2018-02-20 | 3876050 | 0.463 ppb |
2018-05-22 | 3943240 | ND |
2018-05-22 | 3943277 | 0.520 ppb |
2018-08-21 | 4030957 | ND |
2018-08-21 | 4030947 | ND |
2018-11-12 | 4119018 | ND |
2018-11-12 | 4119040 | ND |