City of Houston (TX) Water Quality

City of Houston is a large public water system in EPA region 6 that provides tap water for the 77002 - 77038, 77041 - 77051, 77054 - 77057, 77060, 77061, 77064, 77071 - 77094, 77098, 77099, 77346, 77401, 77489, 77503, 77504, 77536, 77547, 77598 zip codes. It has 112 facilities where the water supply was tested for 97 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 75.741 µg/L. Some (2 of 63 or 3%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 48.7 µg/L. There were 2 contamintants found in the City of Houston water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1,1-dichloroethane (103)

1,2,3-trichloropropane (103)

1,2-diphenylhydrazine (89)

1,3-butadiene (103)

1,4-dioxane (103)

1-butanol (100)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (96)

17-alpha-ethynylestradiol (103)

17-beta-estradiol (103)

1H,1H,2H,2H-perfluorodecane sulfonic acid (96)

1H,1H,2H,2H-perfluorohexane sulfonic acid (96)

1H,1H,2H,2H-perfluorooctane sulfonic acid (96)

2,4,6-trichlorophenol (80)

2,4-dichlorophenol (80)

2,4-dinitrophenol (80)

2,4-dinitrotoluene (129)

2,6-dinitrotoluene (129)

2-methoxyethanol (100)

2-methyl-phenol (80)

2-propen-1-ol (Allyl Alcohol) (100)

4,4'-dichloro dichlorophenyl ethylene (DDE) (129)

4,8-dioxa-3H-perfluorononanoic acid (96)

4-androstene-3,17-dione (103)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (96)

alpha-hexachlorocyclohexane (100)

anatoxin-a (79)

bromochloromethane (Halon 1011) (103)

bromomethane (103)

Butylated Hydroxyanisole (101)

chlorate (199)

chlorodifluoromethane (HCFC-22) (103)

chloromethane (103)

chlorpyrifos (100)

chromium (199)

chromium-6 (199)

cobalt (199)

cylindrospermopsin (79)

diazinon (89)

dimethipin (100)