Pasco Water Department (WA) Water Quality

Pasco Water Department is a large public water system in EPA region 10 that provides tap water for the 99301, 99302 zip codes. It has 7 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 48 µg/L. The maximum reported level of Manganese was 12.9 µg/L. There were 2 contamintants found in the Pasco Water Department water supply at levels that were above the minimum reporting level.

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 (16)

bromochloromethane (Halon 1011) (8)

bromomethane (8)

Butylated Hydroxyanisole (8)

chlorate (12)

chlorodifluoromethane (HCFC-22) (8)

chloromethane (8)

chlorpyrifos (8)

chromium (12)

chromium-6 (12)

cobalt (12)

cylindrospermopsin (16)

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 (12)

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 (12)

tebuconazole (8)

terbacil (4)

total microcystins (16)

Total Permethrin (8)

tribufos (8)

vanadium (12)

Sampling Facilities

Butterfield WTP S01
Surface Water (SW)

Finished Water SpigotEntry Point to the Distribution System (EP)

West Pasco WTP
Surface Water (SW)

Finished Water SpigotEntry Point to the Distribution System (EP)

Butterfield
Surface Water (SW)

Lab Sink, FW Sample TapEntry Point to the Distribution System (EP)

West Pasco
Surface Water (SW)

Lab Sink, FW Sample TapEntry Point to the Distribution System (EP)

Water Distribution System
Surface Water (SW)

County Fire, Sample StationDistribution System (DS)
Kingdom Hall Sample StationDistribution System (DS)
Lucas Park Sample StationDistribution System (DS)
LVMH Park, Sample StationDistribution System (DS)
King City Sample StationDistribution System (DS)
Homerun Rd, Sample StationDistribution System (DS)
3 Rivers, Sample StationDistribution System (DS)
Foster Wells Sample StationDistribution System (DS)

Distribution System
Surface Water (SW)

Homerun Road Sample StationMaximum Residence Time (MR)

COLUMBIA RIVER
Surface Water (SW)

LAB SINKEntry Point to the Distribution System (EP)

FAQ

Is Pasco Water Department tap water safe to drink?

When was Pasco Water Department last tested for water contamination?

The latest water samples were taken on April 10th, 2024.