Manganese
Sierra Cedars Community Services 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.
150
Samples
0
Samples exceeding legal limit (MCL)
29
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 44.2 ppb | 24 | 15 | ND - 150.0 ppb |
| 2019 | 37.5 ppb | 26 | 16 | ND - 140.0 ppb |
| 2020 | 48.0 ppb | 22 | 15 | ND - 200.0 ppb |
| 2021 | 41.0 ppb | 23 | 17 | ND - 170.0 ppb |
| 2022 | 50.6 ppb | 27 | 22 | ND - 250.0 ppb |
| 2023 | 48.7 ppb | 28 | 21 | ND - 180.0 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 | Lab ID | Result |
|---|---|---|
| 2018-01-09 | CA1010052_009_009-201801090740 | 39.0 ppb |
| 2018-01-09 | CA1010052_001_001-201801090740 | ND |
| 2018-01-09 | CA1010052_002_002-201801090740 | 150.0 ppb |
| 2018-01-09 | CA1010052_008_008-201801090740 | ND |
| 2018-06-04 | CA1010052_008_008-201806040930 | ND |
| 2018-06-04 | CA1010052_001_001-201806040930 | ND |
| 2018-06-04 | CA1010052_002_002-201806040930 | 150.0 ppb |
| 2018-06-04 | CA1010052_009_009-201806040930 | 53.0 ppb |
| 2018-07-05 | CA1010052_009_009-201807051330 | 47.0 ppb |
| 2018-07-17 | CA1010052_001_001-201807171245 | ND |
| 2018-07-17 | CA1010052_008_008-201807171245 | ND |
| 2018-07-17 | CA1010052_002_002-201807171300 | 150.0 ppb |
| 2018-07-17 | CA1010052_009_009-201807171200 | 37.0 ppb |
| 2018-08-15 | CA1010052_001_001-201808151300 | ND |
| 2018-08-15 | CA1010052_008_008-201808151255 | ND |
| 2018-08-15 | CA1010052_002_002-201808151310 | 130.0 ppb |
| 2018-08-15 | CA1010052_009_009-201808151350 | 31.0 ppb |
| 2018-09-11 | CA1010052_009_009-201809111320 | 33.0 ppb |
| 2018-10-03 | CA1010052_009_009-201810031400 | 28.0 ppb |
| 2018-11-13 | CA1010052_001_001-201811131205 | ND |
| 2018-11-13 | CA1010052_008_008-201811131210 | 25.0 ppb |
| 2018-11-13 | CA1010052_009_009-201811131245 | 29.0 ppb |
| 2018-11-13 | CA1010052_002_002-201811131220 | 130.0 ppb |
| 2018-12-04 | CA1010052_009_009-201812041410 | 28.0 ppb |
| 2019-01-03 | CA1010052_009_009-201901031315 | 32.0 ppb |
| 2019-02-12 | CA1010052_001_001-201902121315 | ND |
| 2019-02-12 | CA1010052_002_002-201902121340 | 140.0 ppb |
| 2019-02-12 | CA1010052_009_009-201902121310 | 33.0 ppb |
| 2019-02-12 | CA1010052_008_008-201902121300 | ND |
| 2019-03-18 | CA1010052_009_009-201903181345 | 24.0 ppb |
| 2019-04-10 | CA1010052_009_009-201904101315 | 29.0 ppb |
| 2019-05-09 | CA1010052_002_002-201905091200 | 130.0 ppb |
| 2019-05-09 | CA1010052_008_008-201905091145 | ND |
| 2019-05-09 | CA1010052_001_001-201905091145 | ND |
| 2019-05-09 | CA1010052_009_009-201905091230 | 31.0 ppb |
| 2019-06-04 | CA1010052_009_009-201906041120 | 36.0 ppb |
| 2019-07-25 | CA1010052_009_009-201907251015 | 42.0 ppb |
| 2019-08-21 | CA1010052_001_001-201908211200 | ND |
| 2019-08-21 | CA1010052_008_008-201908211200 | ND |
| 2019-08-21 | CA1010052_009_009-201908211315 | 35.0 ppb |
| 2019-08-21 | CA1010052_002_002-201908211210 | 110.0 ppb |
| 2019-09-16 | CA1010052_009_009-201909161310 | 41.0 ppb |
| 2019-11-12 | CA1010052_008_008-201911121250 | ND |
| 2019-11-12 | CA1010052_002_002-201911121300 | 120.0 ppb |
| 2019-11-12 | CA1010052_009_009-201911121330 | 26.0 ppb |
| 2019-11-12 | CA1010052_001_001-201911121255 | ND |
| 2019-12-19 | CA1010052_009_009-201912191330 | 35.0 ppb |
| 2019-12-19 | CA1010052_008_008-201912191330 | ND |
| 2019-12-19 | CA1010052_001_001-201912191330 | ND |
| 2019-12-19 | CA1010052_002_002-201912191330 | 110.0 ppb |
| 2020-01-08 | CA1010052_009_009-202001081200 | 35.0 ppb |
| 2020-02-06 | CA1010052_009_009-202002061200 | 51.0 ppb |
| 2020-03-09 | CA1010052_009_009-202003091435 | 36.0 ppb |
| 2020-03-24 | CA1010052_006_006-202003241045 | 100.0 ppb |
| 2020-04-09 | CA1010052_009_009-202004091300 | ND |
| 2020-05-05 | CA1010052_002_002-202005051110 | 140.0 ppb |
| 2020-05-05 | CA1010052_008_008-202005051050 | ND |
| 2020-05-05 | CA1010052_001_001-202005051100 | ND |
| 2020-05-05 | CA1010052_009_009-202005051130 | 34.0 ppb |
| 2020-06-03 | CA1010052_009_009-202006031200 | 38.0 ppb |
| 2020-07-07 | CA1010052_009_009-202007071230 | ND |
| 2020-08-13 | CA1010052_001_001-202008131305 | ND |
| 2020-08-13 | CA1010052_009_009-202008131335 | 36.0 ppb |
| 2020-08-25 | CA1010052_002_002-202008251230 | 150.0 ppb |
| 2020-08-25 | CA1010052_008_008-202008251215 | ND |
| 2020-09-29 | CA1010052_009_009-202009291200 | 41.0 ppb |
| 2020-10-21 | CA1010052_009_009-202010211315 | 32.0 ppb |
| 2020-11-18 | CA1010052_001_001-202011181130 | ND |
| 2020-11-18 | CA1010052_002_002-202011181130 | 200.0 ppb |
| 2020-11-18 | CA1010052_009_009-202011181130 | 36.0 ppb |
| 2020-11-18 | CA1010052_008_008-202011181130 | 98.0 ppb |
| 2020-12-10 | CA1010052_009_009-202012101530 | 28.0 ppb |
| 2021-01-15 | CA1010052_009_009-202101151430 | 30.0 ppb |
| 2021-02-17 | CA1010052_008_008-202102171350 | ND |
| 2021-02-17 | CA1010052_002_002-202102171330 | 140.0 ppb |
| 2021-02-17 | CA1010052_001_001-202102171355 | ND |
| 2021-02-17 | CA1010052_009_009-202102171345 | 33.0 ppb |
| 2021-03-08 | CA1010052_009_009-202103081315 | 31.0 ppb |
| 2021-05-12 | CA1010052_008_008-202105121200 | 26.0 ppb |
| 2021-05-12 | CA1010052_001_001-202105121200 | ND |
| 2021-05-12 | CA1010052_002_002-202105121200 | 140.0 ppb |
| 2021-05-12 | CA1010052_009_009-202105121200 | 22.0 ppb |
| 2021-06-22 | CA1010052_009_009-202106221415 | 24.0 ppb |
| 2021-07-16 | CA1010052_009_009-202107161235 | 28.0 ppb |
| 2021-08-05 | CA1010052_001_001-202108051420 | ND |
| 2021-08-05 | CA1010052_008_008-202108051415 | ND |
| 2021-08-05 | CA1010052_002_002-202108051400 | 160.0 ppb |
| 2021-08-05 | CA1010052_009_009-202108051335 | 29.0 ppb |
| 2021-09-23 | CA1010052_009_009-202109231110 | 25.0 ppb |
| 2021-10-19 | CA1010052_009_009-202110191225 | 18.0 ppb |
| 2021-11-02 | CA1010052_002_002-202111020840 | 170.0 ppb |
| 2021-11-02 | CA1010052_008_008-202111020915 | 16.0 ppb |
| 2021-11-02 | CA1010052_001_001-202111020900 | ND |
| 2021-11-02 | CA1010052_009_009-202111020950 | 33.0 ppb |
| 2021-12-01 | CA1010052_009_009-202112010920 | 18.0 ppb |
| 2022-01-03 | CA1010052_001_001-202201030950 | ND |
| 2022-01-03 | CA1010052_002_002-202201030930 | 150.0 ppb |
| 2022-01-03 | CA1010052_009_009-202201031010 | 19.0 ppb |
| 2022-01-04 | CA1010052_008_008-202201040950 | 250.0 ppb |
| 2022-02-02 | CA1010052_009_009-202202020930 | 16.0 ppb |
| 2022-03-01 | CA1010052_009_009-202203010940 | 16.0 ppb |
| 2022-04-01 | CA1010052_002_002-202204010905 | 150.0 ppb |
| 2022-04-01 | CA1010052_008_008-202204010930 | 46.0 ppb |
| 2022-04-01 | CA1010052_001_001-202204010945 | ND |
| 2022-04-01 | CA1010052_009_009-202204011005 | 13.0 ppb |
| 2022-05-01 | CA1010052_009_009-202205011030 | 13.0 ppb |
| 2022-06-01 | CA1010052_009_009-202206010925 | 13.0 ppb |
| 2022-07-01 | CA1010052_008_008-202207010900 | 15.0 ppb |
| 2022-07-01 | CA1010052_009_009-202207010945 | 13.0 ppb |
| 2022-07-01 | CA1010052_001_001-202207010930 | ND |
| 2022-07-01 | CA1010052_002_002-202207010845 | 160.0 ppb |
| 2022-08-01 | CA1010052_009_009-202208011055 | 59.0 ppb |
| 2022-09-01 | CA1010052_009_009-202209010910 | 21.0 ppb |
| 2022-10-03 | CA1010052_002_002-202210030820 | 130.0 ppb |
| 2022-10-03 | CA1010052_009_009-202210030910 | 12.0 ppb |
| 2022-10-03 | CA1010052_001_001-202210030840 | ND |
| 2022-10-03 | CA1010052_008_008-202210030845 | 29.0 ppb |
| 2022-11-01 | CA1010052_009_009-202211010905 | 29.0 ppb |
| 2022-11-15 | CA1010052_001_001-202211151100 | ND |
| 2022-11-15 | CA1010052_008_008-202211151115 | 27.0 ppb |
| 2022-11-15 | CA1010052_002_002-202211151045 | 150.0 ppb |
| 2022-12-02 | CA1010052_009_009-202212020915 | 36.0 ppb |
| 2023-01-02 | CA1010052_001_001-202301020845 | ND |
| 2023-01-02 | CA1010052_008_008-202301020855 | 47.0 ppb |
| 2023-01-02 | CA1010052_002_002-202301020835 | 160.0 ppb |
| 2023-01-02 | CA1010052_009_009-202301020920 | 14.0 ppb |
| 2023-03-13 | CA1010052_008_008-202303131015 | 16.0 ppb |
| 2023-03-13 | CA1010052_002_002-202303130955 | ND |
| 2023-03-13 | CA1010052_001_001-202303130950 | 37.0 ppb |
| 2023-03-13 | CA1010052_009_009-202303131030 | 32.0 ppb |
| 2023-05-17 | CA1010052_002_002-202305171130 | 150.0 ppb |
| 2023-05-17 | CA1010052_001_001-202305171115 | ND |
| 2023-05-17 | CA1010052_008_008-202305171145 | ND |
| 2023-05-17 | CA1010052_009_009-202305171215 | 22.0 ppb |
| 2023-06-26 | CA1010052_009_009-202306261115 | 20.0 ppb |
| 2023-07-10 | CA1010052_009_009-202307101030 | 43.0 ppb |
| 2023-07-10 | CA1010052_002_002-202307101015 | 150.0 ppb |
| 2023-07-10 | CA1010052_008_008-202307101015 | 180.0 ppb |
| 2023-07-11 | CA1010052_001_001-202307111000 | ND |
| 2023-08-07 | CA1010052_009_009-202308071015 | 21.0 ppb |
| 2023-09-11 | CA1010052_009_009-202309111215 | 19.0 ppb |
| 2023-10-02 | CA1010052_001_001-202310021045 | ND |
| 2023-10-02 | CA1010052_009_009-202310021000 | 22.0 ppb |
| 2023-10-02 | CA1010052_002_002-202310021115 | 130.0 ppb |
| 2023-10-02 | CA1010052_008_008-202310021100 | 85.0 ppb |
| 2023-10-18 | CA1010052_002_002-202310180905 | 140.0 ppb |
| 2023-10-18 | CA1010052_001_001-202310180930 | ND |
| 2023-10-18 | CA1010052_008_008-202310180900 | 58.0 ppb |
| 2023-11-13 | CA1010052_009_009-202311131435 | 6.50 ppb |
| 2023-12-04 | CA1010052_009_009-202312040915 | 11.0 ppb |