Manganese

Green Bay Waterworks

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

375

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	65.7 ppb	6	6	19.0 ppb - 190.0 ppb
2015	ND	1	0	ND
2016	N/A	0	0	N/A
2017	0.317 ppb	104	12	ND - 11.0 ppb
2018	0.749 ppb	108	64	ND - 22.0 ppb
2019	0.954 ppb	156	87	ND - 26.0 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
2014-05-19	790060	19.0 ppb
2014-05-19	790047	30.0 ppb
2014-05-19	790068	35.0 ppb
2014-05-19	790081	36.0 ppb
2014-05-19	790085	84.0 ppb
2014-05-19	790056	190.0 ppb
2015-04-20	855003	ND
2017-03-01	975620	ND
2017-03-01	975626	ND
2017-03-01	975622	ND
2017-03-01	975628	ND
2017-03-01	975612	ND
2017-03-01	975613	ND
2017-03-01	975609	ND
2017-03-01	975631	ND
2017-03-01	975610	ND
2017-03-01	975615	ND
2017-03-01	975623	ND
2017-03-01	975614	ND
2017-03-01	975619	ND
2017-03-01	975624	ND
2017-03-01	975617	ND
2017-03-01	975607	ND
2017-03-01	975616	ND
2017-03-01	975611	ND
2017-03-01	975618	ND
2017-03-01	975608	ND
2017-03-01	975632	ND
2017-03-01	975627	ND
2017-03-01	975630	ND
2017-03-01	975621	ND
2017-03-01	975625	ND
2017-03-01	975629	2.10 ppb
2017-03-15	977865	ND
2017-03-15	977843	ND
2017-03-15	977851	ND
2017-03-15	977847	ND
2017-03-15	977845	ND
2017-03-15	977852	ND
2017-03-15	977864	ND
2017-03-15	977841	ND
2017-03-15	977846	ND
2017-03-15	977857	ND
2017-03-15	977842	ND
2017-03-15	977862	ND
2017-03-15	977859	ND
2017-03-15	977856	ND
2017-03-15	977848	ND
2017-03-15	977863	ND
2017-03-15	977858	ND
2017-03-15	977850	ND
2017-03-15	977853	ND
2017-03-15	977860	ND
2017-03-15	977855	ND
2017-03-15	977849	ND
2017-03-15	977844	1.20 ppb
2017-03-15	977861	2.50 ppb
2017-03-15	977854	2.70 ppb
2017-03-15	977866	11.0 ppb
2017-10-25	1026490	ND
2017-10-25	1026487	ND
2017-10-25	1026548	ND
2017-10-25	1026376	ND
2017-10-25	1026375	ND
2017-10-25	1026489	ND
2017-10-25	1026371	ND
2017-10-25	1026486	ND
2017-10-25	1026373	ND
2017-10-25	1026547	ND
2017-10-25	1026541	ND
2017-10-25	1026546	ND
2017-10-25	1026372	ND
2017-10-25	1026545	ND
2017-10-25	1026374	ND
2017-10-25	1026542	ND
2017-10-25	1026544	ND
2017-10-25	1026550	ND
2017-10-25	1026481	ND
2017-10-25	1026482	ND
2017-10-25	1026483	ND
2017-10-25	1026485	ND
2017-10-25	1026484	ND
2017-10-25	1026488	ND
2017-10-25	1026543	1.20 ppb
2017-10-25	1026549	1.20 ppb
2017-11-08	1028825	ND
2017-11-08	1028799	ND
2017-11-08	1028812	ND
2017-11-08	1028813	ND
2017-11-08	1028817	ND
2017-11-08	1028824	ND
2017-11-08	1028823	ND
2017-11-08	1028801	ND
2017-11-08	1028807	ND
2017-11-08	1028798	ND
2017-11-08	1028818	ND
2017-11-08	1028802	ND
2017-11-08	1028816	ND
2017-11-08	1028810	ND
2017-11-08	1028819	ND
2017-11-08	1028809	ND
2017-11-08	1028820	ND
2017-11-08	1028800	ND
2017-11-08	1028808	ND
2017-11-08	1028797	ND
2017-11-08	1028811	ND
2017-11-08	1028815	1.30 ppb
2017-11-08	1028822	1.30 ppb
2017-11-08	1028821	1.30 ppb
2017-11-08	1028806	1.60 ppb
2017-11-08	1028814	5.60 ppb
2018-02-05	1039628	ND
2018-03-28	1047409	ND
2018-03-28	1047457	ND
2018-03-28	1047449	ND
2018-03-28	1047455	ND
2018-03-28	1047450	0.210 ppb
2018-03-28	1047453	0.210 ppb
2018-03-28	1047412	0.240 ppb
2018-03-28	1047458	0.290 ppb
2018-03-28	1047414	0.330 ppb
2018-03-28	1047445	0.340 ppb
2018-03-28	1047454	0.350 ppb
2018-03-28	1047446	0.380 ppb
2018-03-28	1047459	0.390 ppb
2018-03-28	1047452	0.420 ppb
2018-03-28	1047443	0.440 ppb
2018-03-28	1047451	0.480 ppb
2018-03-28	1047442	0.500 ppb
2018-03-28	1047456	0.640 ppb
2018-03-28	1047413	0.890 ppb
2018-03-28	1047441	0.890 ppb
2018-03-28	1047444	0.900 ppb
2018-03-28	1047411	1.30 ppb
2018-03-28	1047410	1.40 ppb
2018-03-28	1047460	1.60 ppb
2018-03-28	1047448	3.90 ppb
2018-03-28	1047447	4.30 ppb
2018-04-11	1049770	ND
2018-04-11	1049857	ND
2018-04-11	1049767	ND
2018-04-11	1049858	ND
2018-04-11	1049860	ND
2018-04-11	1049784	ND
2018-04-11	1049856	ND
2018-04-11	1049862	ND
2018-04-11	1049854	ND
2018-04-11	1049785	ND
2018-04-11	1049780	ND
2018-04-11	1049769	ND
2018-04-11	1049781	ND
2018-04-11	1049861	ND
2018-04-11	1049855	ND
2018-04-11	1049779	0.170 ppb
2018-04-11	1049859	0.220 ppb
2018-04-11	1049777	0.270 ppb
2018-04-11	1049778	0.290 ppb
2018-04-11	1049766	0.320 ppb
2018-04-11	1049768	0.400 ppb
2018-04-11	1049765	0.440 ppb
2018-04-11	1049776	0.570 ppb
2018-04-11	1049782	0.920 ppb
2018-04-11	1049863	2.20 ppb
2018-04-11	1049783	4.80 ppb
2018-05-07	1054202	ND
2018-08-06	1071903	ND
2018-09-05	1078430	ND
2018-09-05	1078314	ND
2018-09-05	1078274	ND
2018-09-05	1078310	ND
2018-09-05	1078269	ND
2018-09-05	1078308	ND
2018-09-05	1078266	ND
2018-09-05	1078428	ND
2018-09-05	1078268	ND
2018-09-05	1078315	ND
2018-09-05	1078313	ND
2018-09-05	1078429	ND
2018-09-05	1078273	ND
2018-09-05	1078270	ND
2018-09-05	1078267	ND
2018-09-05	1078272	ND
2018-09-05	1078309	ND
2018-09-05	1078265	ND
2018-09-05	1078307	ND
2018-09-05	1078271	ND
2018-09-05	1078425	0.290 ppb
2018-09-05	1078316	0.340 ppb
2018-09-05	1078312	0.820 ppb
2018-09-05	1078427	1.60 ppb
2018-09-05	1078311	1.90 ppb
2018-09-05	1078426	1.90 ppb
2018-09-19	1081944	ND
2018-09-19	1081962	0.150 ppb
2018-09-19	1081964	0.170 ppb
2018-09-19	1081954	0.180 ppb
2018-09-19	1081945	0.190 ppb
2018-09-19	1081955	0.210 ppb
2018-09-19	1081965	0.220 ppb
2018-09-19	1081966	0.220 ppb
2018-09-19	1081956	0.240 ppb
2018-09-19	1081960	0.240 ppb
2018-09-19	1081958	0.370 ppb
2018-09-19	1081936	0.430 ppb
2018-09-19	1081963	0.520 ppb
2018-09-19	1081939	0.530 ppb
2018-09-19	1081952	0.550 ppb
2018-09-19	1081940	0.700 ppb
2018-09-19	1081941	0.740 ppb
2018-09-19	1081951	1.10 ppb
2018-09-19	1081937	1.10 ppb
2018-09-19	1081943	1.20 ppb
2018-09-19	1081961	1.40 ppb
2018-09-19	1081942	1.80 ppb
2018-09-19	1081967	1.90 ppb
2018-09-19	1081959	2.50 ppb
2018-09-19	1081953	4.40 ppb
2018-09-19	1081938	22.0 ppb
2018-11-05	1091202	ND
2019-04-24	1117365	ND
2019-04-24	1117379	ND
2019-04-24	1117364	ND
2019-04-24	1117358	ND
2019-04-24	1117367	ND
2019-04-24	1117378	ND
2019-04-24	1117360	0.160 ppb
2019-04-24	1117361	0.170 ppb
2019-04-24	1117368	0.170 ppb
2019-04-24	1117380	0.230 ppb
2019-04-24	1117369	0.230 ppb
2019-04-24	1117381	0.280 ppb
2019-04-24	1117362	0.300 ppb
2019-04-24	1117363	0.310 ppb
2019-04-24	1117375	0.320 ppb
2019-04-24	1117359	0.340 ppb
2019-04-24	1117366	0.350 ppb
2019-04-24	1117373	0.370 ppb
2019-04-24	1117357	0.410 ppb
2019-04-24	1117374	0.420 ppb
2019-04-24	1117372	0.450 ppb
2019-04-24	1117377	0.460 ppb
2019-04-24	1117370	0.740 ppb
2019-04-24	1117376	0.760 ppb
2019-04-24	1117371	0.890 ppb
2019-04-24	1117356	1.20 ppb
2019-05-07	1119537	ND
2019-05-07	1119744	ND
2019-05-07	1119746	ND
2019-05-07	1119748	ND
2019-05-07	1119731	ND
2019-05-07	1119730	ND
2019-05-07	1119742	ND
2019-05-07	1119732	ND
2019-05-07	1119747	ND
2019-05-07	1119729	ND
2019-05-07	1119745	ND
2019-05-07	1119645	ND
2019-05-07	1119743	ND
2019-05-07	1119538	ND
2019-05-07	1119736	0.190 ppb
2019-05-07	1119737	0.200 ppb
2019-05-07	1119738	0.310 ppb
2019-05-07	1119735	0.340 ppb
2019-05-07	1119534	0.440 ppb
2019-05-07	1119739	0.460 ppb
2019-05-07	1119535	0.570 ppb
2019-05-07	1119741	0.630 ppb
2019-05-07	1119734	0.740 ppb
2019-05-07	1119740	1.30 ppb
2019-05-07	1119536	1.60 ppb
2019-05-07	1119733	3.50 ppb
2019-10-01	1152621	ND
2019-10-01	1152620	ND
2019-10-01	1152641	ND
2019-10-01	1152639	ND
2019-10-01	1152626	ND
2019-10-01	1152628	ND
2019-10-01	1152637	ND
2019-10-01	1152630	0.170 ppb
2019-10-01	1152623	0.180 ppb
2019-10-01	1152629	0.180 ppb
2019-10-01	1152640	0.220 ppb
2019-10-01	1152622	0.240 ppb
2019-10-01	1152627	0.270 ppb
2019-10-01	1152635	0.370 ppb
2019-10-01	1152624	0.390 ppb
2019-10-01	1152619	0.420 ppb
2019-10-01	1152634	0.570 ppb
2019-10-01	1152638	0.610 ppb
2019-10-01	1152625	0.920 ppb
2019-10-01	1152636	1.10 ppb
2019-10-01	1152633	1.20 ppb
2019-10-01	1152616	1.50 ppb
2019-10-01	1152632	2.90 ppb
2019-10-01	1152618	7.00 ppb
2019-10-01	1152631	10.00 ppb
2019-10-01	1152617	26.0 ppb
2019-10-15	1155417	ND
2019-10-15	1155439	ND
2019-10-15	1155431	ND
2019-10-15	1155430	ND
2019-10-15	1155428	ND
2019-10-15	1155422	ND
2019-10-15	1155438	ND
2019-10-15	1155440	ND
2019-10-15	1155432	ND
2019-10-15	1155437	ND
2019-10-15	1155436	ND
2019-10-15	1155420	ND
2019-10-15	1155441	ND
2019-10-15	1155435	0.160 ppb
2019-10-15	1155433	0.230 ppb
2019-10-15	1155434	0.330 ppb
2019-10-15	1155425	0.350 ppb
2019-10-15	1155426	0.380 ppb
2019-10-15	1155421	0.450 ppb
2019-10-15	1155418	0.500 ppb
2019-10-15	1155429	0.570 ppb
2019-10-15	1155424	0.790 ppb
2019-10-15	1155423	1.10 ppb
2019-10-15	1155427	1.10 ppb
2019-10-15	1155419	4.80 ppb
2019-10-15	1155442	15.0 ppb
2019-12-10	1164992	ND
2019-12-10	1164997	ND
2019-12-10	1164998	ND
2019-12-10	1164993	ND
2019-12-10	1165022	ND
2019-12-10	1165023	0.160 ppb
2019-12-10	1164853	0.170 ppb
2019-12-10	1164990	0.170 ppb
2019-12-10	1164856	0.180 ppb
2019-12-10	1164855	0.210 ppb
2019-12-10	1165028	0.220 ppb
2019-12-10	1165024	0.240 ppb
2019-12-10	1164996	0.250 ppb
2019-12-10	1164991	0.310 ppb
2019-12-10	1164989	0.380 ppb
2019-12-10	1164995	0.390 ppb
2019-12-10	1165029	0.430 ppb
2019-12-10	1164854	0.430 ppb
2019-12-10	1164994	0.490 ppb
2019-12-10	1165026	0.540 ppb
2019-12-10	1165031	0.560 ppb
2019-12-10	1164851	0.570 ppb
2019-12-10	1165027	0.660 ppb
2019-12-10	1164852	0.810 ppb
2019-12-10	1165030	0.940 ppb
2019-12-10	1165025	21.0 ppb
2019-12-17	1166108	ND
2019-12-17	1166151	ND
2019-12-17	1166150	ND
2019-12-17	1166155	ND
2019-12-17	1166093	ND
2019-12-17	1166096	ND
2019-12-17	1166153	ND
2019-12-17	1166152	ND
2019-12-17	1166099	ND
2019-12-17	1166154	ND
2019-12-17	1166095	ND
2019-12-17	1166106	ND
2019-12-17	1166149	ND
2019-12-17	1166104	ND
2019-12-17	1166105	ND
2019-12-17	1166158	ND
2019-12-17	1166157	ND
2019-12-17	1166156	ND
2019-12-17	1166097	ND
2019-12-17	1166107	ND
2019-12-17	1166094	ND
2019-12-17	1166098	ND
2019-12-17	1166102	ND
2019-12-17	1166100	ND
2019-12-17	1166101	2.80 ppb
2019-12-17	1166103	18.0 ppb