WMAUA Miner Flat Water Quality

WMAUA Miner Flat is a large public water system in EPA region 9 that provides tap water for the 85911, 85935 zip codes. It has 5 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 36.37 µg/L. The maximum reported level of Manganese was 920 µg/L. Some (1 of 8 or 13%) of the latest water samples showed levels of Manganese that were at or above unsafe concentration levels. There were 2 contamintants found in the WMAUA Miner Flat 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 (5)

1,2,3-trichloropropane (5)

1,3-butadiene (5)

1,4-dioxane (5)

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-methoxyethanol (8)

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

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

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

alpha-hexachlorocyclohexane (8)

anatoxin-a (12)

bromochloromethane (Halon 1011) (5)

bromomethane (5)

Butylated Hydroxyanisole (7)

chlorate (10)

chlorodifluoromethane (HCFC-22) (5)

chloromethane (5)

chlorpyrifos (8)

chromium (10)

chromium-6 (10)

cobalt (10)

cylindrospermopsin (12)

dimethipin (8)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (8)

HAA6Br (six brominated haloacetic acids) (8)

HAA9 (nine haloacetic acids) (8)

hexafluoropropylene oxide dimer acid (GenX) (8)

lithium (8)

Manganese (8)

molybdenum (10)

N-ethyl perfluorooctanesulfonamidoacetic acid (8)

N-methyl perfluorooctanesulfonamidoacetic acid (8)

nonafluoro-3,6-dioxaheptanoic acid (8)

o-toluidine (7)

oxyfluorfen (8)

perfluoro(2-ethoxyethane)sulfonic acid (8)

perfluoro-3-methoxypropanoic acid (8)

perfluoro-4-methoxybutanoic acid (8)

perfluorobutanesulfonic acid (13)

perfluorobutanoic acid (8)

perfluorodecanoic acid (8)

perfluorododecanoic acid (8)

perfluoroheptanesulfonic acid (8)

perfluoroheptanoic acid (13)

perfluorohexanesulfonic acid (13)

perfluorohexanoic acid (8)

perfluorononanoic acid (13)

perfluorooctanesulfonic acid (13)

perfluorooctanoic acid (13)

perfluoropentanesulfonic acid (8)

perfluoropentanoic acid (8)

perfluorotetradecanoic acid (8)

perfluorotridecanoic acid (8)

perfluoroundecanoic acid (8)

profenofos (8)

quinoline (7)

strontium (10)

tebuconazole (8)

total microcystins (12)

Total Permethrin (8)

tribufos (8)

vanadium (10)

Sampling Facilities

Miner Flat TP
Multiple Sources (MX)

EP from Miner PlantEntry Point to the Distribution System (EP)
SWTP EPTDSEntry Point to the Distribution System (EP)

SWTP
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

7 Mile SchoolDistribution System (DS)
Cedar Creek SchoolDistribution System (DS)
DSMRT for Diamond CreekMaximum Residence Time (MR)

Miner Flats Treatment Plant
Ground Water (GW)

Miner Flat Wells TP EPTDSEntry Point to the Distribution System (EP)

Distribution System - GW
Ground Water (GW)

DSMRT for Miner FlatsMaximum Residence Time (MR)

FAQ

Is WMAUA Miner Flat tap water safe to drink?

When was WMAUA Miner Flat last tested for water contamination?

The latest water samples were taken on February 13th, 2025.