Manganese

City of Grand Prairie

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
2013	N/A	0	0	N/A
2014	19.6 ppb	8	8	0.720 ppb - 120.0 ppb
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	5.90 ppb	6	6	1.90 ppb - 20.0 ppb
2018	1.64 ppb	68	66	ND - 8.30 ppb
2019	0.738 ppb	16	13	ND - 2.70 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
2014-04-23	Q1412991005	0.720 ppb
2014-06-04	Q1419331004	6.90 ppb
2014-06-26	Q1424023031	4.60 ppb
2014-06-26	Q1424023012	8.10 ppb
2014-06-26	Q1424023011	8.30 ppb
2014-06-26	Q1424023010	2.20 ppb
2014-09-10	Q1442991008	5.90 ppb
2014-09-10	Q1442991007	120.0 ppb
2017-01-05	Q1700632004	2.80 ppb
2017-01-05	Q1700632018	6.50 ppb
2017-06-27	Q1726535028	2.10 ppb
2017-06-27	Q1726535003	2.10 ppb
2017-06-27	Q1726535027	1.90 ppb
2017-06-27	Q1726535002	20.0 ppb
2018-02-19	1663534	0.501 ppb
2018-02-19	1663528	ND
2018-02-19	1663529	1.21 ppb
2018-02-19	1663530	4.97 ppb
2018-02-19	1663531	1.63 ppb
2018-02-19	1663541	0.717 ppb
2018-02-19	1663546	1.07 ppb
2018-02-19	1663539	1.27 ppb
2018-02-19	1663538	1.33 ppb
2018-02-19	1663537	1.85 ppb
2018-02-19	1663536	1.90 ppb
2018-02-19	1663535	1.81 ppb
2018-02-19	1663525	1.10 ppb
2018-02-19	1663533	1.64 ppb
2018-02-19	1663532	0.908 ppb
2018-02-19	1663522	1.50 ppb
2018-02-19	1663520	1.60 ppb
2018-02-19	1663521	1.52 ppb
2018-02-19	1663540	1.35 ppb
2018-02-19	1663545	0.516 ppb
2018-02-19	1663544	0.937 ppb
2018-02-19	1663543	2.05 ppb
2018-02-19	1663542	0.763 ppb
2018-02-19	1663517	1.72 ppb
2018-02-19	1663519	3.01 ppb
2018-02-19	1663527	1.68 ppb
2018-02-19	1663523	ND
2018-02-19	1663524	1.02 ppb
2018-02-19	1663526	0.886 ppb
2018-02-28	1665713	8.30 ppb
2018-02-28	1665712	1.79 ppb
2018-02-28	1665711	1.000 ppb
2018-02-28	1665709	1.92 ppb
2018-02-28	1665710	1.75 ppb
2018-05-09	1684403	1.27 ppb
2018-05-09	1684399	7.11 ppb
2018-05-09	1684400	1.46 ppb
2018-05-09	1684401	0.778 ppb
2018-05-09	1684402	1.36 ppb
2018-05-09	1684397	3.18 ppb
2018-05-09	1684404	1.18 ppb
2018-05-09	1684405	1.51 ppb
2018-05-09	1684406	0.664 ppb
2018-05-09	1684407	0.830 ppb
2018-05-10	1684565	0.738 ppb
2018-05-10	1684547	1.09 ppb
2018-05-10	1684548	0.476 ppb
2018-05-10	1684550	1.06 ppb
2018-05-10	1684546	1.10 ppb
2018-05-10	1684564	0.734 ppb
2018-05-10	1684563	1.45 ppb
2018-05-10	1684562	3.68 ppb
2018-05-10	1684561	2.45 ppb
2018-05-10	1684560	1.97 ppb
2018-05-10	1684559	1.43 ppb
2018-05-10	1684558	2.52 ppb
2018-05-10	1684557	1.30 ppb
2018-05-10	1684556	0.802 ppb
2018-05-10	1684555	1.40 ppb
2018-05-10	1684554	1.14 ppb
2018-05-10	1684553	1.18 ppb
2018-05-10	1684552	1.05 ppb
2018-05-10	1684551	1.18 ppb
2018-05-10	1684549	0.845 ppb
2018-05-11	1684566	1.06 ppb
2018-05-24	1687915	2.18 ppb
2018-05-24	1687917	3.77 ppb
2018-05-24	1687916	2.64 ppb
2019-01-09	Q1901164001	0.400 ppb
2019-01-09	Q1901164002	1.20 ppb
2019-01-09	Q1901164003	1.000 ppb
2019-01-09	Q1901164004	0.500 ppb
2019-04-10	Q1914580001	ND
2019-04-10	Q1914580002	0.900 ppb
2019-04-10	Q1914580003	2.70 ppb
2019-04-10	Q1914580004	ND
2019-07-16	Q1945343001	1.000 ppb
2019-07-16	Q1945343002	0.700 ppb
2019-07-16	Q1945343004	ND
2019-07-16	Q1945343003	0.800 ppb
2019-10-08	Q1971742004	0.400 ppb
2019-10-08	Q1971742003	1.10 ppb
2019-10-08	Q1971742002	0.500 ppb
2019-10-08	Q1971742001	0.600 ppb