Manganese
Coastside County Water District
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.
305
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 6.67 ppb | 43 | 5 | ND - 87.0 ppb |
| 2015 | 10.3 ppb | 40 | 4 | ND - 295.0 ppb |
| 2016 | ND | 52 | 0 | ND |
| 2017 | ND | 55 | 0 | ND |
| 2018 | 1.80 ppb | 51 | 16 | ND - 40.0 ppb |
| 2019 | 2.85 ppb | 64 | 36 | ND - 24.0 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 | Lab ID | Result |
|---|---|---|
| 2014-01-08 | 1395-011-0935 | ND |
| 2014-02-05 | 1395-011-0840 | ND |
| 2014-02-26 | 1395-010-0957 | ND |
| 2014-02-26 | 1395-010-1130 | ND |
| 2014-03-05 | 1395-010-1032 | ND |
| 2014-03-11 | 1395-010-1138 | ND |
| 2014-03-17 | 1395-011-1040 | ND |
| 2014-03-19 | 1395-010-0935 | ND |
| 2014-03-19 | 1395-010-1130 | ND |
| 2014-03-26 | 1395-010-0955 | ND |
| 2014-04-02 | 1395-011-1120 | ND |
| 2014-04-09 | 1395-010-1025 | ND |
| 2014-04-16 | 1395-010-0942 | ND |
| 2014-04-23 | 1395-010-1040 | ND |
| 2014-04-30 | 1395-010-0910 | ND |
| 2014-05-07 | 1395-010-0920 | ND |
| 2014-05-07 | 1395-010-0925 | ND |
| 2014-05-14 | 1395-011-0840 | ND |
| 2014-05-21 | 1395-010-0920 | ND |
| 2014-06-04 | 1395-011-0910 | ND |
| 2014-06-17 | 1395-010-0850 | ND |
| 2014-06-17 | 1395-010-1045 | ND |
| 2014-07-03 | 1395-010-0852 | ND |
| 2014-07-08 | 1395-010-1000 | ND |
| 2014-07-08 | 1395-010-1050 | ND |
| 2014-07-15 | 1395-010-1040 | ND |
| 2014-07-16 | 1395-010-1040 | ND |
| 2014-07-16 | 1395-011-0900 | ND |
| 2014-07-29 | 1395-010-0900 | ND |
| 2014-08-06 | 1395-010-1117 | ND |
| 2014-08-06 | 1395-010-1200 | ND |
| 2014-08-06 | 1395-011-0940 | ND |
| 2014-08-12 | 1395-010-1200 | ND |
| 2014-08-26 | 1395-010-1415 | ND |
| 2014-09-03 | 1395-010-0930 | 25.0 ppb |
| 2014-09-10 | 1395-011-0940 | ND |
| 2014-10-01 | 1395-011-0915 | ND |
| 2014-11-04 | 1395-011-0910 | ND |
| 2014-11-24 | 1395-010-1210 | 50.0 ppb |
| 2014-12-02 | 1395-010-0945 | 87.0 ppb |
| 2014-12-10 | 1395-010-1117 | 51.0 ppb |
| 2014-12-10 | 1395-011-1025 | ND |
| 2014-12-30 | 1395-010-1105 | 74.0 ppb |
| 2015-01-06 | 1395-010-1000 | 47.0 ppb |
| 2015-01-06 | 1395-011-0835 | ND |
| 2015-01-14 | 1395-010-1120 | ND |
| 2015-01-20 | 1395-010-1030 | ND |
| 2015-01-27 | 1395-010-0950 | ND |
| 2015-02-04 | 1395-010-0900 | ND |
| 2015-02-11 | 1395-011-0850 | ND |
| 2015-02-18 | 1395-010-1040 | ND |
| 2015-02-19 | 1395-010-0945 | ND |
| 2015-02-25 | 1395-010-0856 | ND |
| 2015-03-04 | 1395-010-1015 | 36.0 ppb |
| 2015-03-10 | 1395-010-0930 | ND |
| 2015-03-10 | 1395-011-1030 | ND |
| 2015-03-18 | 1395-010-0840 | ND |
| 2015-03-25 | 1395-002-1015 | ND |
| 2015-03-25 | 1395-010-0900 | ND |
| 2015-04-01 | 1395-010-0930 | ND |
| 2015-04-07 | 1395-010-0932 | ND |
| 2015-04-07 | 1395-010-1055 | ND |
| 2015-04-07 | 1395-011-0945 | ND |
| 2015-04-15 | 1395-010-0925 | ND |
| 2015-04-22 | 1395-010-0940 | ND |
| 2015-04-29 | 1395-010-0930 | ND |
| 2015-05-06 | 1395-011-0920 | ND |
| 2015-05-08 | 1395-010-1215 | ND |
| 2015-05-13 | 1395-010-0930 | ND |
| 2015-05-19 | 1395-010-1200 | ND |
| 2015-06-01 | 1395-011-1000 | ND |
| 2015-07-08 | 1395-011-0910 | ND |
| 2015-08-03 | 1395-011-0950 | ND |
| 2015-09-02 | 1395-011-0850 | ND |
| 2015-10-06 | 1395-011-0920 | ND |
| 2015-11-04 | 1395-011-0830 | ND |
| 2015-12-01 | 1395-011-0830 | ND |
| 2015-12-03 | 1395-010-1145 | 35.0 ppb |
| 2015-12-07 | 1395-010-0940 | ND |
| 2015-12-15 | 1395-010-1055 | ND |
| 2015-12-16 | 1395-013-1200 | 295.0 ppb |
| 2015-12-24 | 1395-010-1310 | ND |
| 2015-12-28 | 1395-010-0950 | ND |
| 2016-01-05 | 1395-010-1025 | ND |
| 2016-01-05 | 1395-011-0940 | ND |
| 2016-01-11 | 1395-010-0937 | ND |
| 2016-01-27 | 1395-010-1010 | ND |
| 2016-02-02 | 1395-010-0915 | ND |
| 2016-02-02 | 1395-011-1020 | ND |
| 2016-02-08 | 1395-010-1015 | ND |
| 2016-02-17 | 1395-010-1030 | ND |
| 2016-02-23 | 1395-010-1050 | ND |
| 2016-03-02 | 1395-010-0945 | ND |
| 2016-03-02 | 1395-011-1030 | ND |
| 2016-03-24 | 1395-010-1025 | ND |
| 2016-03-30 | 1395-010-0950 | ND |
| 2016-04-06 | 1395-010-1005 | ND |
| 2016-04-06 | 1395-011-0930 | ND |
| 2016-04-11 | 1395-010-1005 | ND |
| 2016-04-20 | 1395-010-0930 | ND |
| 2016-04-25 | 1395-010-0930 | ND |
| 2016-05-04 | 1395-010-1030 | ND |
| 2016-05-04 | 1395-011-0910 | ND |
| 2016-05-11 | 1395-010-1155 | ND |
| 2016-05-18 | 1395-010-1033 | ND |
| 2016-05-25 | 1395-010-0930 | ND |
| 2016-06-01 | 1395-010-1025 | ND |
| 2016-06-01 | 1395-011-0800 | ND |
| 2016-06-08 | 1395-010-0925 | ND |
| 2016-06-15 | 1395-010-1010 | ND |
| 2016-06-22 | 1395-010-0850 | ND |
| 2016-06-29 | 1395-010-0900 | ND |
| 2016-07-06 | 1395-010-0900 | ND |
| 2016-07-13 | 1395-010-0800 | ND |
| 2016-07-13 | 1395-011-0900 | ND |
| 2016-07-19 | 1395-010-0955 | ND |
| 2016-07-27 | 1395-010-1025 | ND |
| 2016-08-03 | 1395-010-1120 | ND |
| 2016-08-10 | 1395-010-0900 | ND |
| 2016-08-10 | 1395-011-1100 | ND |
| 2016-08-17 | 1395-010-0925 | ND |
| 2016-08-22 | 1395-010-1040 | ND |
| 2016-08-31 | 1395-010-0950 | ND |
| 2016-09-06 | 1395-010-1050 | ND |
| 2016-09-13 | 1395-010-1020 | ND |
| 2016-09-13 | 1395-011-0915 | ND |
| 2016-09-21 | 1395-010-0920 | ND |
| 2016-09-28 | 1395-010-1010 | ND |
| 2016-10-05 | 1395-011-0935 | ND |
| 2016-11-01 | 1395-011-0940 | ND |
| 2016-11-30 | 1395-010-1050 | ND |
| 2016-12-07 | 1395-010-1340 | ND |
| 2016-12-07 | 1395-011-1100 | ND |
| 2016-12-20 | 1395-010-1040 | ND |
| 2016-12-28 | 1395-010-0816 | ND |
| 2017-01-03 | 1395-010-1051 | ND |
| 2017-01-03 | 1395-011-1000 | ND |
| 2017-02-07 | 1395-011-0900 | ND |
| 2017-02-14 | 1395-011-1030 | ND |
| 2017-03-01 | 1395-011-0915 | ND |
| 2017-03-15 | 1395-010-1115 | ND |
| 2017-03-20 | 1395-010-1050 | ND |
| 2017-03-31 | 1395-010-0930 | ND |
| 2017-04-04 | 1395-010-1125 | ND |
| 2017-04-04 | 1395-011-0915 | ND |
| 2017-04-12 | 1395-010-0830 | ND |
| 2017-04-19 | 1395-010-1020 | ND |
| 2017-04-26 | 1395-010-1035 | ND |
| 2017-05-03 | 1395-010-0915 | ND |
| 2017-05-03 | 1395-011-0900 | ND |
| 2017-05-09 | 1395-010-0850 | ND |
| 2017-05-17 | 1395-010-1010 | ND |
| 2017-05-24 | 1395-010-1015 | ND |
| 2017-05-31 | 1395-010-0955 | ND |
| 2017-06-07 | 1395-010-0940 | ND |
| 2017-06-07 | 1395-011-1100 | ND |
| 2017-06-14 | 1395-010-0855 | ND |
| 2017-06-21 | 1395-010-0910 | ND |
| 2017-06-26 | 1395-010-0955 | ND |
| 2017-07-05 | 1395-010-0954 | ND |
| 2017-07-05 | 1395-011-0925 | ND |
| 2017-07-12 | 1395-010-0910 | ND |
| 2017-07-18 | 1395-010-0935 | ND |
| 2017-07-26 | 1395-010-1130 | ND |
| 2017-08-02 | 1395-010-1230 | ND |
| 2017-08-02 | 1395-011-1030 | ND |
| 2017-08-09 | 1395-010-0930 | ND |
| 2017-08-16 | 1395-010-0945 | ND |
| 2017-08-23 | 1395-010-0955 | ND |
| 2017-08-30 | 1395-010-1005 | ND |
| 2017-09-07 | 1395-010-1045 | ND |
| 2017-09-07 | 1395-011-0910 | ND |
| 2017-09-13 | 1395-010-0930 | ND |
| 2017-09-20 | 1395-010-1050 | ND |
| 2017-09-27 | 1395-010-1035 | ND |
| 2017-10-04 | 1395-011-0900 | ND |
| 2017-10-12 | 1395-010-1325 | ND |
| 2017-10-18 | 1395-010-1000 | ND |
| 2017-10-25 | 1395-010-0931 | ND |
| 2017-11-01 | 1395-010-0935 | ND |
| 2017-11-01 | 1395-011-0805 | ND |
| 2017-11-08 | 1395-010-1100 | ND |
| 2017-11-15 | 1395-010-0935 | ND |
| 2017-11-20 | 1395-010-0945 | ND |
| 2017-11-29 | 1395-010-1050 | ND |
| 2017-12-06 | 1395-010-0955 | ND |
| 2017-12-06 | 1395-011-0850 | ND |
| 2017-12-13 | 1395-010-1100 | ND |
| 2017-12-19 | 1395-010-0940 | ND |
| 2017-12-27 | 1395-010-1045 | ND |
| 2018-01-05 | 1395-010-1305 | ND |
| 2018-01-08 | 1395-010-1140 | ND |
| 2018-01-08 | 1395-011-1325 | ND |
| 2018-01-17 | 1395-010-1045 | ND |
| 2018-01-23 | 1395-010-0905 | ND |
| 2018-01-30 | 1395-010-0905 | ND |
| 2018-02-06 | 1395-010-1350 | ND |
| 2018-02-06 | 1395-011-1245 | ND |
| 2018-02-13 | 1395-010-1250 | ND |
| 2018-02-20 | 1395-010-1445 | ND |
| 2018-02-20 | 1395-011-1425 | ND |
| 2018-02-28 | 1395-010-0935 | ND |
| 2018-03-05 | 1395-010-1000 | ND |
| 2018-03-14 | 1395-002-1028 | ND |
| 2018-03-14 | 1395-010-1110 | ND |
| 2018-03-14 | 1395-011-1350 | ND |
| 2018-03-20 | 1395-010-0900 | ND |
| 2018-03-29 | 1395-010-1315 | ND |
| 2018-04-02 | 1395-010-1325 | ND |
| 2018-04-10 | 1395-011-1500 | ND |
| 2018-04-19 | 1395-010-1250 | ND |
| 2018-04-24 | 5810-010-1150 | ND |
| 2018-05-02 | 1395-010-1440 | ND |
| 2018-05-02 | 1395-011-1340 | ND |
| 2018-05-09 | 1395-010-0930 | ND |
| 2018-05-15 | 1395-010-0915 | ND |
| 2018-05-23 | 1395-010-1000 | ND |
| 2018-05-30 | 1395-010-1015 | ND |
| 2018-06-06 | 1395-010-1300 | ND |
| 2018-06-06 | 1395-011-1315 | ND |
| 2018-06-13 | 1395-010-1000 | ND |
| 2018-06-20 | 1395-010-0900 | ND |
| 2018-06-27 | 1395-010-1015 | ND |
| 2018-07-05 | 1395-010-1317 | ND |
| 2018-07-05 | 1395-011-1245 | ND |
| 2018-07-11 | 1395-010-0850 | 1.000 ppb |
| 2018-07-17 | 1395-010-0900 | 1.90 ppb |
| 2018-07-25 | 1395-010-0950 | 0.900 ppb |
| 2018-08-01 | 1395-010-1350 | 1.000 ppb |
| 2018-08-01 | 1395-011-1410 | 3.00 ppb |
| 2018-08-08 | 1395-010-1130 | 1.000 ppb |
| 2018-08-22 | A8H2607-01 | 5.30 ppb |
| 2018-09-04 | 1395-011-1328 | 9.00 ppb |
| 2018-10-03 | 1395-011-1250 | 9.00 ppb |
| 2018-11-07 | 1395-011-1300 | 40.0 ppb |
| 2018-11-13 | A8J2569-01 | 9.70 ppb |
| 2018-12-05 | 1395-011-1250 | 6.00 ppb |
| 2018-12-07 | 1395-010-1440 | 1.000 ppb |
| 2018-12-11 | 1395-010-1315 | 1.000 ppb |
| 2018-12-18 | 1395-010-1040 | 1.000 ppb |
| 2018-12-26 | 1395-010-1025 | 1.000 ppb |
| 2019-01-02 | 1395-010-1415 | ND |
| 2019-01-02 | 1395-011-1307 | 24.0 ppb |
| 2019-01-09 | 1395-010-0952 | 2.00 ppb |
| 2019-01-16 | 1395-010-1130 | 2.00 ppb |
| 2019-01-22 | 1395-010-0915 | 2.00 ppb |
| 2019-01-30 | 1395-010-1025 | 2.00 ppb |
| 2019-02-05 | 1395-011-1305 | 13.0 ppb |
| 2019-02-07 | 1395-010-1030 | 1.80 ppb |
| 2019-02-13 | 1395-010-0750 | 3.60 ppb |
| 2019-02-19 | 1395-010-1300 | 4.00 ppb |
| 2019-02-19 | 1395-011-1025 | 13.0 ppb |
| 2019-02-25 | 1395-010-1024 | 1.000 ppb |
| 2019-03-06 | 1395-011-1255 | 11.0 ppb |
| 2019-03-13 | 1395-010-1135 | 11.0 ppb |
| 2019-03-18 | 1395-010-0900 | 1.000 ppb |
| 2019-03-25 | 1395-010-1015 | 1.000 ppb |
| 2019-04-02 | 1395-010-1355 | 1.000 ppb |
| 2019-04-02 | 1395-011-1300 | 9.00 ppb |
| 2019-04-10 | 1395-010-0850 | 1.000 ppb |
| 2019-04-17 | 1395-002-1010 | 2.00 ppb |
| 2019-04-17 | 1395-010-1056 | ND |
| 2019-04-24 | 1395-010-1210 | ND |
| 2019-05-02 | 1395-010-1445 | ND |
| 2019-05-02 | 1395-011-1325 | 4.00 ppb |
| 2019-05-07 | 1395-010-1048 | ND |
| 2019-05-14 | 1395-010-0945 | ND |
| 2019-05-21 | 1395-010-0950 | ND |
| 2019-05-29 | 1395-010-1007 | ND |
| 2019-06-06 | 1395-010-1227 | ND |
| 2019-06-06 | 1395-011-1315 | 7.00 ppb |
| 2019-06-11 | 1395-010-0815 | ND |
| 2019-06-19 | 1395-010-0915 | ND |
| 2019-06-25 | 1395-010-0830 | ND |
| 2019-07-01 | 1395-010-1355 | ND |
| 2019-07-01 | 1395-011-1255 | 2.00 ppb |
| 2019-07-09 | 1395-010-1145 | ND |
| 2019-07-16 | 1395-010-1310 | ND |
| 2019-07-23 | 1395-010-0830 | ND |
| 2019-07-30 | 1395-010-0905 | ND |
| 2019-08-06 | 1395-010-1400 | ND |
| 2019-08-06 | 1395-011-1255 | 15.0 ppb |
| 2019-08-14 | 1395-010-1105 | ND |
| 2019-08-20 | 1395-010-1045 | ND |
| 2019-08-28 | 1395-010-1055 | ND |
| 2019-09-03 | 1395-010-1405 | ND |
| 2019-09-03 | 1395-011-1255 | 5.00 ppb |
| 2019-09-10 | 1395-010-0910 | ND |
| 2019-09-17 | 1395-010-0912 | ND |
| 2019-09-25 | 1395-010-1130 | 1.000 ppb |
| 2019-10-01 | 1395-010-1010 | ND |
| 2019-10-01 | 1395-011-1000 | 14.0 ppb |
| 2019-10-25 | 1395-010-1053 | ND |
| 2019-10-30 | 1395-010-1317 | ND |
| 2019-11-06 | 1395-010-1330 | 1.000 ppb |
| 2019-11-06 | 1395-011-1230 | 5.00 ppb |
| 2019-11-13 | 1395-010-0930 | ND |
| 2019-11-20 | 1395-010-0845 | 1.000 ppb |
| 2019-11-25 | 1395-010-1045 | 2.00 ppb |
| 2019-12-03 | 1395-010-1345 | 2.00 ppb |
| 2019-12-03 | 1395-011-1250 | 5.00 ppb |
| 2019-12-10 | 1395-010-0935 | 3.00 ppb |
| 2019-12-17 | 1395-010-1308 | 3.00 ppb |
| 2019-12-26 | 1395-010-1150 | 3.00 ppb |
| 2019-12-30 | 1395-010-1055 | 4.00 ppb |