Manganese
Westborough 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.
362
Samples
0
Samples exceeding legal limit (MCL)
102
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 69.4 ppb | 62 | 25 | ND - 632.0 ppb |
| 2015 | 115.2 ppb | 59 | 24 | ND - 1,990.0 ppb |
| 2016 | 222.2 ppb | 61 | 35 | ND - 2,140.0 ppb |
| 2017 | 162.5 ppb | 55 | 28 | ND - 1,260.0 ppb |
| 2018 | 105.3 ppb | 56 | 28 | ND - 1,140.0 ppb |
| 2019 | 79.6 ppb | 57 | 32 | ND - 1,070.0 ppb |
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 | Result |
|---|---|
| 2014-01-07 | ND |
| 2014-01-07 | ND |
| 2014-01-07 | ND |
| 2014-01-07 | 196.0 ppb |
| 2014-02-04 | ND |
| 2014-02-04 | 190.0 ppb |
| 2014-02-11 | ND |
| 2014-02-11 | 12.0 ppb |
| 2014-03-04 | 11.0 ppb |
| 2014-03-04 | ND |
| 2014-03-04 | 14.0 ppb |
| 2014-03-04 | 199.0 ppb |
| 2014-04-01 | 11.0 ppb |
| 2014-04-01 | 12.0 ppb |
| 2014-04-01 | 10.00 ppb |
| 2014-04-01 | 216.0 ppb |
| 2014-05-06 | ND |
| 2014-05-06 | 169.0 ppb |
| 2014-05-20 | ND |
| 2014-05-20 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | ND |
| 2014-05-21 | 70.0 ppb |
| 2014-05-21 | 388.0 ppb |
| 2014-05-21 | 398.0 ppb |
| 2014-05-21 | 23.0 ppb |
| 2014-05-21 | ND |
| 2014-05-21 | 630.0 ppb |
| 2014-06-03 | ND |
| 2014-06-03 | ND |
| 2014-06-03 | ND |
| 2014-06-03 | 146.0 ppb |
| 2014-06-27 | 632.0 ppb |
| 2014-07-08 | ND |
| 2014-07-08 | ND |
| 2014-07-08 | ND |
| 2014-07-08 | 108.0 ppb |
| 2014-08-05 | ND |
| 2014-08-05 | ND |
| 2014-08-05 | ND |
| 2014-08-05 | 111.0 ppb |
| 2014-09-09 | ND |
| 2014-09-09 | ND |
| 2014-09-09 | ND |
| 2014-09-09 | 128.0 ppb |
| 2014-10-07 | ND |
| 2014-10-07 | ND |
| 2014-10-07 | ND |
| 2014-10-07 | 142.0 ppb |
| 2014-11-04 | ND |
| 2014-11-04 | ND |
| 2014-11-04 | ND |
| 2014-11-04 | 179.0 ppb |
| 2014-11-18 | 59.0 ppb |
| 2014-12-09 | ND |
| 2014-12-09 | ND |
| 2014-12-09 | ND |
| 2014-12-09 | 248.0 ppb |
| 2015-01-06 | ND |
| 2015-01-06 | ND |
| 2015-01-06 | ND |
| 2015-01-06 | 245.0 ppb |
| 2015-02-11 | ND |
| 2015-02-11 | 138.0 ppb |
| 2015-03-17 | ND |
| 2015-03-17 | ND |
| 2015-03-17 | ND |
| 2015-03-17 | 218.0 ppb |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | ND |
| 2015-04-07 | 343.0 ppb |
| 2015-04-17 | ND |
| 2015-05-12 | 14.0 ppb |
| 2015-05-12 | 63.0 ppb |
| 2015-05-12 | ND |
| 2015-05-12 | 10.00 ppb |
| 2015-05-12 | ND |
| 2015-05-12 | ND |
| 2015-05-12 | 138.0 ppb |
| 2015-06-02 | 145.0 ppb |
| 2015-06-02 | 825.0 ppb |
| 2015-06-02 | 636.0 ppb |
| 2015-06-02 | 565.0 ppb |
| 2015-06-02 | 303.0 ppb |
| 2015-06-04 | ND |
| 2015-06-04 | ND |
| 2015-06-04 | ND |
| 2015-06-23 | 15.0 ppb |
| 2015-06-23 | ND |
| 2015-06-23 | ND |
| 2015-06-23 | 130.0 ppb |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | 115.0 ppb |
| 2015-08-04 | 10.00 ppb |
| 2015-08-04 | 138.0 ppb |
| 2015-08-18 | ND |
| 2015-08-18 | ND |
| 2015-09-01 | ND |
| 2015-09-01 | 142.0 ppb |
| 2015-09-17 | 1,990.0 ppb |
| 2015-09-22 | ND |
| 2015-09-22 | ND |
| 2015-10-13 | 10.00 ppb |
| 2015-10-13 | ND |
| 2015-10-13 | ND |
| 2015-10-13 | 151.0 ppb |
| 2015-11-03 | ND |
| 2015-11-03 | 208.0 ppb |
| 2015-11-17 | ND |
| 2015-11-17 | ND |
| 2015-12-08 | ND |
| 2015-12-08 | ND |
| 2015-12-08 | ND |
| 2015-12-08 | 245.0 ppb |
| 2016-01-19 | ND |
| 2016-01-19 | ND |
| 2016-01-19 | ND |
| 2016-01-19 | 240.0 ppb |
| 2016-02-02 | 12.0 ppb |
| 2016-02-02 | ND |
| 2016-02-02 | 15.0 ppb |
| 2016-02-02 | 252.0 ppb |
| 2016-03-08 | ND |
| 2016-03-08 | ND |
| 2016-03-08 | 14.0 ppb |
| 2016-03-08 | 148.0 ppb |
| 2016-04-12 | ND |
| 2016-04-12 | ND |
| 2016-04-12 | ND |
| 2016-04-12 | 188.0 ppb |
| 2016-05-12 | ND |
| 2016-05-12 | 352.0 ppb |
| 2016-05-12 | 604.0 ppb |
| 2016-05-12 | 658.0 ppb |
| 2016-05-13 | 46.0 ppb |
| 2016-05-18 | 17.0 ppb |
| 2016-05-18 | 13.0 ppb |
| 2016-05-18 | 19.0 ppb |
| 2016-05-18 | 152.0 ppb |
| 2016-05-20 | 20.0 ppb |
| 2016-05-25 | ND |
| 2016-05-25 | 1,040.0 ppb |
| 2016-05-25 | 24.0 ppb |
| 2016-05-25 | ND |
| 2016-05-25 | 2,040.0 ppb |
| 2016-06-07 | ND |
| 2016-06-07 | ND |
| 2016-06-07 | ND |
| 2016-06-07 | 86.0 ppb |
| 2016-07-12 | ND |
| 2016-07-12 | ND |
| 2016-07-12 | ND |
| 2016-07-12 | 126.0 ppb |
| 2016-08-09 | ND |
| 2016-08-09 | ND |
| 2016-08-09 | ND |
| 2016-08-09 | 143.0 ppb |
| 2016-09-13 | 43.0 ppb |
| 2016-09-13 | 273.0 ppb |
| 2016-09-21 | ND |
| 2016-09-21 | ND |
| 2016-10-25 | 40.0 ppb |
| 2016-10-25 | 164.0 ppb |
| 2016-10-26 | 2,140.0 ppb |
| 2016-10-27 | 1,860.0 ppb |
| 2016-10-27 | 827.0 ppb |
| 2016-11-10 | 1,550.0 ppb |
| 2016-11-15 | ND |
| 2016-11-15 | 16.0 ppb |
| 2016-11-15 | 11.0 ppb |
| 2016-11-15 | 128.0 ppb |
| 2016-12-06 | ND |
| 2016-12-06 | ND |
| 2016-12-06 | 13.0 ppb |
| 2016-12-06 | 281.0 ppb |
| 2017-01-17 | 36.0 ppb |
| 2017-01-17 | 141.0 ppb |
| 2017-01-25 | 14.0 ppb |
| 2017-01-25 | 18.0 ppb |
| 2017-02-07 | ND |
| 2017-02-07 | 1,150.0 ppb |
| 2017-02-07 | 362.0 ppb |
| 2017-02-21 | ND |
| 2017-02-21 | 11.0 ppb |
| 2017-03-07 | ND |
| 2017-03-07 | 12.0 ppb |
| 2017-03-07 | 12.0 ppb |
| 2017-03-07 | 466.0 ppb |
| 2017-04-05 | 10.00 ppb |
| 2017-04-05 | 369.0 ppb |
| 2017-04-18 | ND |
| 2017-04-18 | 10.00 ppb |
| 2017-05-02 | ND |
| 2017-05-02 | 128.0 ppb |
| 2017-05-02 | 1,260.0 ppb |
| 2017-05-02 | 332.0 ppb |
| 2017-05-02 | 870.0 ppb |
| 2017-05-02 | 240.0 ppb |
| 2017-05-16 | ND |
| 2017-05-16 | 24.0 ppb |
| 2017-05-16 | ND |
| 2017-05-16 | 1,240.0 ppb |
| 2017-05-16 | 984.0 ppb |
| 2017-06-07 | ND |
| 2017-06-07 | 200.0 ppb |
| 2017-07-12 | ND |
| 2017-07-12 | 100.0 ppb |
| 2017-07-25 | ND |
| 2017-07-25 | ND |
| 2017-08-08 | ND |
| 2017-08-08 | 130.0 ppb |
| 2017-08-23 | ND |
| 2017-08-23 | ND |
| 2017-08-31 | ND |
| 2017-09-13 | ND |
| 2017-09-13 | 124.0 ppb |
| 2017-09-20 | ND |
| 2017-09-20 | ND |
| 2017-10-04 | ND |
| 2017-10-04 | ND |
| 2017-10-04 | 146.0 ppb |
| 2017-10-04 | ND |
| 2017-11-15 | ND |
| 2017-11-15 | ND |
| 2017-11-15 | 344.0 ppb |
| 2017-11-15 | ND |
| 2017-12-13 | ND |
| 2017-12-13 | ND |
| 2017-12-13 | 207.0 ppb |
| 2017-12-13 | ND |
| 2018-01-10 | 12.0 ppb |
| 2018-01-10 | 254.0 ppb |
| 2018-01-24 | ND |
| 2018-01-24 | 1,140.0 ppb |
| 2018-01-24 | ND |
| 2018-02-21 | ND |
| 2018-02-21 | ND |
| 2018-02-21 | 236.0 ppb |
| 2018-02-21 | ND |
| 2018-03-21 | ND |
| 2018-03-21 | ND |
| 2018-03-21 | 184.0 ppb |
| 2018-03-21 | ND |
| 2018-04-17 | 365.0 ppb |
| 2018-04-17 | 152.0 ppb |
| 2018-05-16 | ND |
| 2018-05-16 | 99.0 ppb |
| 2018-06-20 | ND |
| 2018-06-20 | ND |
| 2018-06-20 | 12.0 ppb |
| 2018-06-20 | ND |
| 2018-06-20 | ND |
| 2018-06-20 | 38.0 ppb |
| 2018-06-20 | 342.0 ppb |
| 2018-06-20 | 471.0 ppb |
| 2018-06-20 | 105.0 ppb |
| 2018-06-20 | ND |
| 2018-06-26 | ND |
| 2018-06-26 | 23.0 ppb |
| 2018-06-26 | ND |
| 2018-06-26 | 1,070.0 ppb |
| 2018-06-26 | ND |
| 2018-07-11 | ND |
| 2018-07-11 | ND |
| 2018-07-11 | 206.0 ppb |
| 2018-07-11 | ND |
| 2018-08-27 | ND |
| 2018-08-27 | ND |
| 2018-08-27 | 253.0 ppb |
| 2018-08-27 | 11.0 ppb |
| 2018-09-12 | ND |
| 2018-09-12 | ND |
| 2018-09-12 | 326.0 ppb |
| 2018-09-12 | ND |
| 2018-10-10 | ND |
| 2018-10-10 | 206.0 ppb |
| 2018-10-30 | 10.00 ppb |
| 2018-10-30 | 17.0 ppb |
| 2018-11-14 | 14.0 ppb |
| 2018-11-14 | ND |
| 2018-11-14 | 99.0 ppb |
| 2018-11-14 | 13.0 ppb |
| 2018-12-05 | 94.0 ppb |
| 2018-12-05 | ND |
| 2018-12-05 | 136.0 ppb |
| 2018-12-05 | 11.0 ppb |
| 2019-01-23 | 25.0 ppb |
| 2019-01-23 | ND |
| 2019-01-23 | 133.0 ppb |
| 2019-01-23 | 11.0 ppb |
| 2019-02-06 | 14.0 ppb |
| 2019-02-06 | 138.0 ppb |
| 2019-03-13 | ND |
| 2019-03-13 | 111.0 ppb |
| 2019-03-20 | ND |
| 2019-03-20 | 14.0 ppb |
| 2019-04-03 | ND |
| 2019-04-03 | ND |
| 2019-04-03 | 130.0 ppb |
| 2019-04-03 | 16.0 ppb |
| 2019-05-15 | 11.0 ppb |
| 2019-05-15 | ND |
| 2019-05-15 | 103.0 ppb |
| 2019-05-15 | 14.0 ppb |
| 2019-06-05 | ND |
| 2019-06-05 | ND |
| 2019-06-05 | 65.0 ppb |
| 2019-06-05 | 11.0 ppb |
| 2019-06-21 | ND |
| 2019-06-21 | 131.0 ppb |
| 2019-06-21 | 296.0 ppb |
| 2019-06-21 | 303.0 ppb |
| 2019-06-21 | 452.0 ppb |
| 2019-06-27 | 666.0 ppb |
| 2019-06-27 | 1,070.0 ppb |
| 2019-06-27 | ND |
| 2019-07-24 | ND |
| 2019-07-24 | ND |
| 2019-07-24 | 11.0 ppb |
| 2019-07-24 | 18.0 ppb |
| 2019-07-24 | ND |
| 2019-07-24 | 90.0 ppb |
| 2019-07-24 | ND |
| 2019-08-28 | ND |
| 2019-08-28 | ND |
| 2019-08-28 | 83.0 ppb |
| 2019-08-28 | ND |
| 2019-09-18 | ND |
| 2019-09-18 | ND |
| 2019-09-18 | 116.0 ppb |
| 2019-09-18 | 10.5 ppb |
| 2019-10-09 | ND |
| 2019-10-09 | 136.0 ppb |
| 2019-10-23 | ND |
| 2019-10-23 | 11.0 ppb |
| 2019-11-06 | ND |
| 2019-11-06 | ND |
| 2019-11-06 | 170.0 ppb |
| 2019-11-06 | 11.0 ppb |
| 2019-12-18 | ND |
| 2019-12-18 | ND |
| 2019-12-18 | 156.0 ppb |
| 2019-12-18 | 11.0 ppb |
| 2020-02-25 | 2.23 ppb |
| 2020-02-25 | 1.63 ppb |
| 2020-02-25 | 1.23 ppb |
| 2020-02-25 | 44.6 ppb |
| 2020-02-25 | 9.09 ppb |
| 2020-05-28 | 11.9 ppb |
| 2020-08-25 | 2.04 ppb |
| 2020-08-25 | 1.24 ppb |
| 2020-08-25 | 4.27 ppb |
| 2020-08-25 | 3.51 ppb |
| 2020-08-27 | 13.7 ppb |
| 2020-11-13 | 34.3 ppb |