Manganese

City of Farmersville

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	ND	7	0	ND
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	10.00 ppb	7	2	ND - 40.0 ppb
2018	7.30 ppb	7	6	ND - 28.0 ppb
2019	10.6 ppb	6	3	ND - 57.0 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
2014-09-23	5867-004-1300	ND
2014-09-23	5867-001-1125	ND
2014-09-23	5867-003-0815	ND
2014-09-24	5867-014-1015	ND
2014-09-24	5867-007-1045	ND
2014-09-24	5867-006-0830	ND
2014-09-24	5867-005-0945	ND
2017-06-07	5867-006-0825	ND
2017-06-08	5867-003-1326	40.0 ppb
2017-06-08	5867-007-1033	ND
2017-06-08	5867-005-0718	ND
2017-06-08	5867-004-1005	ND
2017-06-08	5867-001-0826	30.0 ppb
2017-06-08	5867-014-1100	ND
2018-12-14	A8K1242-01	28.0 ppb
2018-12-14	A8K1242-02	6.60 ppb
2018-12-14	A8K1242-03	2.20 ppb
2018-12-14	A8K1242-07	ND
2018-12-14	A8K1242-04	2.80 ppb
2018-12-14	A8K1242-05	9.20 ppb
2018-12-14	A8K1242-06	2.30 ppb
2019-07-05	A9E0246-07	ND
2019-07-05	A9E0246-06	ND
2019-07-05	A9E0246-05	ND
2019-07-05	A9E0246-04	2.50 ppb
2019-07-05	A9E0246-03	3.80 ppb
2019-07-05	A9E0246-01	57.0 ppb