Sioux City Water Supply (IA) Water Quality

Sioux City Water Supply is a large public water system in EPA region 7 that provides tap water for the 51101 - 51108 zip codes. It has 4 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 67.52 µg/L. Some (2 of 32 or 6%) 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 12.9 µg/L. There were 2 contamintants found in the Sioux City Water Supply 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 (8)

1,2,3-trichloropropane (8)

1,3-butadiene (8)

1,4-dioxane (8)

1-butanol (8)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (8)

1H,1H,2H,2H-perfluorodecane sulfonic acid (8)

1H,1H,2H,2H-perfluorohexane sulfonic acid (8)

1H,1H,2H,2H-perfluorooctane sulfonic acid (8)

2,4-dinitrotoluene (4)

2,6-dinitrotoluene (4)

2-methoxyethanol (8)

2-propen-1-ol (Allyl Alcohol) (8)

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

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

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (8)

alpha-hexachlorocyclohexane (8)

anatoxin-a (15)

bromochloromethane (Halon 1011) (8)

bromomethane (8)

Butylated Hydroxyanisole (8)

chlorate (16)

chlorodifluoromethane (HCFC-22) (8)

chloromethane (8)

chlorpyrifos (8)

chromium (14)

chromium-6 (16)

cobalt (14)

cylindrospermopsin (15)

dimethipin (8)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (4)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (32)

HAA6Br (six brominated haloacetic acids) (32)

HAA9 (nine haloacetic acids) (32)

hexafluoropropylene oxide dimer acid (GenX) (8)

lithium (8)

Manganese (8)

methyl-tertiary-butyl-ether (MTBE) (4)

molinate (4)

molybdenum (14)

N-ethyl perfluorooctanesulfonamidoacetic acid (8)

N-methyl perfluorooctanesulfonamidoacetic acid (8)

nitrobenzene (4)

nonafluoro-3,6-dioxaheptanoic acid (8)

o-toluidine (8)

oxyfluorfen (8)

perchlorate (4)

perfluoro(2-ethoxyethane)sulfonic acid (8)

perfluoro-3-methoxypropanoic acid (8)

perfluoro-4-methoxybutanoic acid (8)

perfluorobutanesulfonic acid (16)

perfluorobutanoic acid (8)

perfluorodecanoic acid (8)

perfluorododecanoic acid (8)

perfluoroheptanesulfonic acid (8)

perfluoroheptanoic acid (16)

perfluorohexanesulfonic acid (16)

perfluorohexanoic acid (8)

perfluorononanoic acid (16)

perfluorooctanesulfonic acid (16)

perfluorooctanoic acid (16)

perfluoropentanesulfonic acid (8)

perfluoropentanoic acid (8)

perfluorotetradecanoic acid (8)

perfluorotridecanoic acid (8)

perfluoroundecanoic acid (8)

profenofos (8)

quinoline (8)

s-ethyl-dipropylthiocarbamate (EPTC) (4)

strontium (14)

tebuconazole (8)

terbacil (4)

total microcystins (15)

Total Permethrin (8)

tribufos (8)

vanadium (14)

Sampling Facilities

Zenith Plant
Ground Water (Under Direct Influence of Surface Water) (GU)

Lab SinkEntry Point to the Distribution System (EP)
SOURCE ENTRY POINTEntry Point to the Distribution System (EP)

Southbridge Plant
Ground Water (Under Direct Influence of Surface Water) (GU)

HS TapEntry Point to the Distribution System (EP)

Distribution System
Ground Water (Under Direct Influence of Surface Water) (GU)

3301 Wst 19th StreetDistribution System (DS)
1182 260th StreetDistribution System (DS)
4005 Morningside AvenueDistribution System (DS)
5900 Gordon DriveDistribution System (DS)
6500 Wispering CreekDistribution System (DS)
2200 Riverside BlvdDistribution System (DS)
4200 War Eagle DriveDistribution System (DS)
1551 Indian Hills Dr.Distribution System (DS)

Distribution System
Ground Water (Under Direct Influence of Surface Water) (GU)

4200 War EagleMaximum Residence Time (MR)
DSMRT for Southbridge PlantMaximum Residence Time (MR)

FAQ

Is Sioux City Water Supply tap water safe to drink?

When was Sioux City Water Supply last tested for water contamination?

The latest water samples were taken on July 15th, 2024.