Manganese
City of Alexandria Water System
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.
186
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 11.5 ppb | 102 | 64 | ND - 80.0 ppb |
| 2020 | 10.8 ppb | 13 | 10 | ND - 30.0 ppb |
| 2021 | 20.0 ppb | 13 | 7 | ND - 90.0 ppb |
| 2022 | 12.2 ppb | 37 | 13 | ND - 110.0 ppb |
| 2023 | 11.9 ppb | 21 | 12 | ND - 80.0 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 |
|---|---|---|
| 2019-01-30 | 35445470001 | ND |
| 2019-01-30 | 35445470002 | 4.80 ppb |
| 2019-01-30 | 35445470003 | ND |
| 2019-01-30 | 35445470004 | ND |
| 2019-01-30 | 35445470005 | 57.0 ppb |
| 2019-01-30 | 35445470001 | ND |
| 2019-01-30 | 35445470002 | 4.80 ppb |
| 2019-01-30 | 35445470003 | ND |
| 2019-01-30 | 35445470004 | ND |
| 2019-01-30 | 35445470005 | 57.0 ppb |
| 2019-02-06 | 35446987001 | 6.20 ppb |
| 2019-02-06 | 35446987002 | ND |
| 2019-02-06 | 35446987003 | ND |
| 2019-02-06 | 35446987004 | ND |
| 2019-02-06 | 35446987005 | 11.0 ppb |
| 2019-02-06 | 35446987001 | 6.20 ppb |
| 2019-02-06 | 35446987002 | ND |
| 2019-02-06 | 35446987003 | ND |
| 2019-02-06 | 35446987004 | ND |
| 2019-02-06 | 35446987005 | 11.0 ppb |
| 2019-02-27 | 35451250001 | 14.0 ppb |
| 2019-02-27 | 35451250002 | 4.60 ppb |
| 2019-02-27 | 35451250003 | 2.00 ppb |
| 2019-02-27 | 35451250004 | 24.0 ppb |
| 2019-02-27 | 35451250005 | 15.0 ppb |
| 2019-02-27 | 35451250001 | 14.0 ppb |
| 2019-02-27 | 35451250002 | 4.60 ppb |
| 2019-02-27 | 35451250003 | 2.00 ppb |
| 2019-02-27 | 35451250004 | 24.0 ppb |
| 2019-02-27 | 35451250005 | 15.0 ppb |
| 2019-03-13 | 35454676001 | ND |
| 2019-03-13 | 35454676002 | 2.40 ppb |
| 2019-03-13 | 35454676003 | ND |
| 2019-03-13 | 35454676004 | 21.0 ppb |
| 2019-03-13 | 35454676001 | ND |
| 2019-03-13 | 35454676002 | 2.40 ppb |
| 2019-03-13 | 35454676003 | ND |
| 2019-03-13 | 35454676004 | 21.0 ppb |
| 2019-03-20 | 35456260001 | 1.60 ppb |
| 2019-03-20 | 35456260002 | 39.0 ppb |
| 2019-03-20 | 35456260003 | 2.80 ppb |
| 2019-03-20 | 35456260004 | ND |
| 2019-03-20 | 35456260005 | 1.70 ppb |
| 2019-03-20 | 35456260001 | 1.60 ppb |
| 2019-03-20 | 35456260002 | 39.0 ppb |
| 2019-03-20 | 35456260003 | 2.80 ppb |
| 2019-03-20 | 35456260004 | ND |
| 2019-03-20 | 35456260005 | 1.70 ppb |
| 2019-03-27 | 35457693001 | ND |
| 2019-03-27 | 35457693002 | ND |
| 2019-03-27 | 35457693003 | ND |
| 2019-03-27 | 35457693004 | 20.0 ppb |
| 2019-03-27 | 35457693005 | 1.80 ppb |
| 2019-03-27 | 35457693001 | ND |
| 2019-03-27 | 35457693002 | ND |
| 2019-03-27 | 35457693003 | ND |
| 2019-03-27 | 35457693004 | 20.0 ppb |
| 2019-03-27 | 35457693005 | 1.80 ppb |
| 2019-04-10 | 35461050001 | 6.00 ppb |
| 2019-04-10 | 35461050002 | 2.40 ppb |
| 2019-04-10 | 35461050003 | 8.30 ppb |
| 2019-04-10 | 35461050004 | 14.0 ppb |
| 2019-04-10 | 35461050005 | 3.60 ppb |
| 2019-04-10 | 35461050001 | 6.00 ppb |
| 2019-04-10 | 35461050002 | 2.40 ppb |
| 2019-04-10 | 35461050003 | 8.30 ppb |
| 2019-04-10 | 35461050004 | 14.0 ppb |
| 2019-04-10 | 35461050005 | 3.60 ppb |
| 2019-06-06 | B1902352-001 | 40.0 ppb |
| 2019-06-06 | B1902352-002 | 80.0 ppb |
| 2019-06-06 | B1902352-003 | ND |
| 2019-06-06 | B1902352-001 | 40.0 ppb |
| 2019-06-06 | B1902352-002 | 80.0 ppb |
| 2019-06-06 | B1902352-003 | ND |
| 2019-07-25 | B1903186-001 | ND |
| 2019-07-25 | B1903188-001 | 80.0 ppb |
| 2019-07-25 | B1903186-001 | ND |
| 2019-07-25 | B1903188-001 | 80.0 ppb |
| 2019-09-11 | B1904050-001 | 10.00 ppb |
| 2019-09-11 | B1904050-002 | ND |
| 2019-09-11 | B1904050-003 | ND |
| 2019-09-11 | B1904050-001 | 10.00 ppb |
| 2019-09-11 | B1904050-002 | ND |
| 2019-09-11 | B1904050-003 | ND |
| 2019-09-19 | 4428871 | 7.04 ppb |
| 2019-09-19 | 4428891 | 7.58 ppb |
| 2019-09-19 | 4428933 | 22.0 ppb |
| 2019-09-19 | 4428856 | 4.25 ppb |
| 2019-09-24 | 4437097 | 7.14 ppb |
| 2019-09-24 | 4437144 | 41.1 ppb |
| 2019-09-25 | 4436838 | 13.5 ppb |
| 2019-09-26 | 4437331 | 8.74 ppb |
| 2019-12-04 | B1905453-001 | 50.0 ppb |
| 2019-12-04 | B1905453-002 | ND |
| 2019-12-04 | B1905453-003 | 10.00 ppb |
| 2019-12-04 | B1905453-004 | ND |
| 2019-12-04 | B1905453-005 | ND |
| 2019-12-04 | B1905453-001 | 50.0 ppb |
| 2019-12-04 | B1905453-002 | ND |
| 2019-12-04 | B1905453-003 | 10.00 ppb |
| 2019-12-04 | B1905453-004 | ND |
| 2019-12-04 | B1905453-005 | ND |
| 2020-03-03 | 4580949 | 11.4 ppb |
| 2020-03-09 | 4585673 | 12.1 ppb |
| 2020-03-09 | 4585723 | 3.67 ppb |
| 2020-03-17 | 4592813 | 22.2 ppb |
| 2020-03-17 | 4592239 | 21.6 ppb |
| 2020-03-25 | 4596256 | 1.92 ppb |
| 2020-03-25 | 4596301 | 6.98 ppb |
| 2020-03-26 | B2001556-001 | ND |
| 2020-03-26 | B2001556-002 | 10.00 ppb |
| 2020-06-17 | B2002902-001 | ND |
| 2020-06-17 | B2002902-002 | ND |
| 2020-10-01 | B2005181-001 | 30.0 ppb |
| 2020-11-09 | B2005987-001 | 20.0 ppb |
| 2021-01-26 | B2100376-001 | 30.0 ppb |
| 2021-05-05 | B2102139-001 | 30.0 ppb |
| 2021-07-14 | B2103238-001 | ND |
| 2021-08-10 | B2103808-001 | 30.0 ppb |
| 2021-10-01 | B2105317-001 | ND |
| 2021-10-01 | B2105317-002 | 30.0 ppb |
| 2021-10-01 | B2105317-003 | 30.0 ppb |
| 2021-10-01 | B2105317-004 | ND |
| 2021-10-01 | B2105317-005 | 20.0 ppb |
| 2021-10-01 | B2105317-006 | 90.0 ppb |
| 2021-10-01 | B2105317-007 | ND |
| 2021-10-01 | B2105317-008 | ND |
| 2021-10-01 | B2105317-009 | ND |
| 2022-01-04 | B2200014-001 | 10.00 ppb |
| 2022-01-04 | B2200014-002 | ND |
| 2022-01-04 | B2200014-003 | ND |
| 2022-01-19 | B2200275-001 | ND |
| 2022-01-19 | B2200275-002 | ND |
| 2022-01-19 | B2200275-003 | ND |
| 2022-01-19 | B2200275-004 | ND |
| 2022-01-19 | B2200275-005 | ND |
| 2022-02-02 | B2200523-001 | 20.0 ppb |
| 2022-02-02 | B2200523-002 | ND |
| 2022-02-02 | B2200523-003 | 30.0 ppb |
| 2022-02-02 | B2200523-004 | 20.0 ppb |
| 2022-02-02 | B2200523-005 | 20.0 ppb |
| 2022-02-23 | B2200866-001 | ND |
| 2022-02-23 | B2200866-002 | ND |
| 2022-02-23 | B2200866-003 | 50.0 ppb |
| 2022-02-23 | B2200866-004 | 10.00 ppb |
| 2022-02-23 | B2200866-005 | ND |
| 2022-03-09 | B2201054-001 | ND |
| 2022-03-09 | B2201054-002 | ND |
| 2022-03-09 | B2201054-003 | ND |
| 2022-03-09 | B2201054-004 | 80.0 ppb |
| 2022-03-16 | B2201185-001 | ND |
| 2022-03-16 | B2201185-002 | ND |
| 2022-03-16 | B2201185-003 | ND |
| 2022-03-16 | B2201185-004 | 10.00 ppb |
| 2022-03-16 | B2201185-005 | ND |
| 2022-07-18 | B2203404-001 | ND |
| 2022-07-18 | B2203404-002 | 110.0 ppb |
| 2022-07-18 | B2203404-003 | ND |
| 2022-07-18 | B2203404-004 | ND |
| 2022-07-18 | B2203404-005 | ND |
| 2022-07-18 | B2203404-006 | 20.0 ppb |
| 2022-09-13 | B2204412-001 | 40.0 ppb |
| 2022-09-13 | B2204412-002 | ND |
| 2022-11-30 | B2205669-001 | ND |
| 2022-11-30 | B2205669-002 | 30.0 ppb |
| 2023-02-06 | B2300579-001 | ND |
| 2023-02-06 | B2300579-002 | 20.0 ppb |
| 2023-02-06 | B2300579-003 | ND |
| 2023-05-30 | B2302282-001 | ND |
| 2023-05-30 | B2302282-002 | 10.00 ppb |
| 2023-05-30 | B2302282-003 | 10.00 ppb |
| 2023-05-30 | B2302282-004 | ND |
| 2023-05-30 | B2302282-005 | 20.0 ppb |
| 2023-05-30 | B2302282-006 | 10.00 ppb |
| 2023-05-30 | B2302282-007 | ND |
| 2023-05-30 | B2302282-008 | ND |
| 2023-05-30 | B2302282-009 | ND |
| 2023-07-31 | B2303129-001 | ND |
| 2023-07-31 | B2303129-002 | 10.00 ppb |
| 2023-07-31 | B2303129-003 | 30.0 ppb |
| 2023-07-31 | B2303129-005 | 20.0 ppb |
| 2023-11-27 | B2305075-001 | 20.0 ppb |
| 2023-11-27 | B2305075-002 | 10.00 ppb |
| 2023-11-27 | B2305075-003 | 80.0 ppb |
| 2023-11-27 | B2305075-004 | 10.00 ppb |
| 2023-12-19 | B2305384-001 | ND |