Manganese

City of Dinuba

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	ND	6	0	ND
2015	N/A	0	0	N/A
2016	ND	1	0	ND
2017	ND	7	0	ND
2018	0.403 ppb	15	6	ND - 1.70 ppb
2019	N/A	0	0	N/A

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
2014-09-17	5810-011-1252	ND
2014-09-17	5810-014-0912	ND
2014-09-17	5810-015-1130	ND
2014-09-17	5810-017-1330	ND
2014-09-17	5810-020-1052	ND
2014-09-17	5810-021-1215	ND
2016-04-27	5810-019-1046	ND
2017-09-12	5810-014-1144	ND
2017-09-12	5810-015-0812	ND
2017-09-12	5810-017-1117	ND
2017-09-12	5810-019-0904	ND
2017-09-12	5810-020-1042	ND
2017-09-12	5810-021-1223	ND
2017-09-12	5810-011-0931	ND
2018-03-28	201803290450	ND
2018-03-28	201803290455	0.910 ppb
2018-03-28	201803290458	ND
2018-03-28	201803290464	1.40 ppb
2018-03-29	201803300308	1.10 ppb
2018-03-29	201803300246	ND
2018-03-29	201803300281	ND
2018-03-29	201803300282	ND
2018-09-19	201809200410	ND
2018-09-19	201809200721	0.520 ppb
2018-09-19	201809200494	ND
2018-09-19	201809200510	1.70 ppb
2018-09-19	201809200495	0.410 ppb
2018-09-19	201809200496	ND
2018-09-19	201809200498	ND