Chromium (hexavalent)

Aqua Pennsylvania Main System

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

MORE ABOUT THIS CONTAMINANT

104

Samples

Samples exceeding legal limit (MCL)

100

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.279 ppb	104	100	ND - 2.60 ppb
2014	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date	Lab ID	Result
2013-01-13	AD77949	0.240 ppb
2013-01-13	AD77943	0.320 ppb
2013-01-13	AD77946	0.220 ppb
2013-01-14	AD78005	0.360 ppb
2013-01-14	AD78011	0.290 ppb
2013-01-14	AD78002	0.350 ppb
2013-01-14	AD78137	0.520 ppb
2013-01-14	AD78008	0.860 ppb
2013-01-14	AD78140	0.220 ppb
2013-01-15	AD77871	0.180 ppb
2013-01-15	AD77870	0.170 ppb
2013-01-15	AD77872	0.230 ppb
2013-01-16	AD78017	0.270 ppb
2013-01-16	AD78023	0.170 ppb
2013-01-16	AD78044	0.370 ppb
2013-01-16	AD78024	0.210 ppb
2013-01-16	AD77940	0.250 ppb
2013-01-16	AD77952	0.160 ppb
2013-01-17	AD78099	0.140 ppb
2013-01-17	AD78109	0.150 ppb
2013-01-17	AD78067	0.0700 ppb
2013-01-18	AD78143	0.470 ppb
2013-01-18	AD77955	0.0700 ppb
2013-01-22	AD78014	0.160 ppb
2013-01-23	AD77857	0.0400 ppb
2013-01-23	AD78146	0.150 ppb
2013-01-24	AD79023	0.110 ppb
2013-01-29	AD78029	0.200 ppb
2013-02-05	AD77823	0.270 ppb
2013-02-14	AD80780	2.60 ppb
2013-02-21	AD80783	0.250 ppb
2013-04-06	AD86189	0.180 ppb
2013-04-06	AD86180	0.340 ppb
2013-04-06	AD86183	0.180 ppb
2013-04-06	AD86186	0.250 ppb
2013-04-06	AD86195	0.0700 ppb
2013-04-06	AD86192	0.140 ppb
2013-04-16	AD86867	0.160 ppb
2013-04-16	AD86887	ND
2013-04-16	AD86868	0.320 ppb
2013-04-16	AD86892	0.1000 ppb
2013-04-17	AD86947	0.160 ppb
2013-04-17	AD86946	0.130 ppb
2013-04-17	AD86826	0.290 ppb
2013-04-17	AD86825	0.350 ppb
2013-04-18	AD86824	0.1000 ppb
2013-04-18	AD87382	0.180 ppb
2013-05-06	AD89384	0.210 ppb
2013-05-08	AD89575	0.200 ppb
2013-05-09	AD89634	0.210 ppb
2013-06-05	AD93190	0.580 ppb
2013-06-07	AD93747	0.210 ppb
2013-07-16	AD98126	ND
2013-07-16	AD98092	0.230 ppb
2013-07-17	AD98134	0.160 ppb
2013-07-17	AD98135	0.190 ppb
2013-07-17	AD98140	0.170 ppb
2013-07-17	AD98389	0.340 ppb
2013-07-17	AD98390	0.360 ppb
2013-07-18	AD98264	0.150 ppb
2013-07-18	AD98277	0.230 ppb
2013-07-18	AD98617	0.150 ppb
2013-07-20	AD99138	0.130 ppb
2013-07-20	AD99153	0.0400 ppb
2013-07-20	AD99141	0.270 ppb
2013-07-20	AD99147	0.190 ppb
2013-07-20	AD99144	0.210 ppb
2013-07-20	AD99150	0.140 ppb
2013-07-22	AD99011	0.210 ppb
2013-07-23	AD99195	0.190 ppb
2013-07-23	AD99412	ND
2013-07-31	AE00816	0.500 ppb
2013-07-31	AE00819	2.30 ppb
2013-07-31	AE00813	0.540 ppb
2013-07-31	AE00822	0.170 ppb
2013-07-31	AE00825	0.160 ppb
2013-08-19	AE02912	1.10 ppb
2013-08-19	AE02906	0.270 ppb
2013-08-19	AE02904	0.300 ppb
2013-08-20	AE02885	0.350 ppb
2013-08-20	AE02887	0.490 ppb
2013-08-20	AE02886	0.810 ppb
2013-08-20	AE02884	0.150 ppb
2013-08-29	AE02933	0.240 ppb
2013-08-29	AE02934	0.320 ppb
2013-10-28	AE13073	0.320 ppb
2013-10-28	AE13131	0.140 ppb
2013-10-29	AE13282	0.170 ppb
2013-10-29	AE13280	0.180 ppb
2013-10-29	AE13284	0.570 ppb
2013-10-29	AE13286	0.0900 ppb
2013-10-29	AE13288	ND
2013-10-29	AE13290	0.0400 ppb
2013-10-29	AE13292	0.0500 ppb
2013-10-30	AE13450	0.180 ppb
2013-10-30	AE13452	0.180 ppb
2013-10-30	AE13448	0.190 ppb
2013-10-30	AE13445	0.210 ppb
2013-10-30	AE13442	0.150 ppb
2013-10-31	AE13766	0.110 ppb
2013-10-31	AE13764	0.150 ppb
2013-10-31	AE13760	0.290 ppb
2013-10-31	AE13762	0.370 ppb
2013-10-31	AE13768	0.1000 ppb