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Tap water quality report

ZIP 98466 — Tacoma, WA

EPA monitoring across the 2 water suppliers serving ZIP 98466 in Tacoma, WA detected 24 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
454,097
people served
24
contaminants found

What was found in ZIP 98466

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
4540 µg/L 45%
of the EPA limit 10000 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Nitrate-Nitrite
4268 µg/L 43%
of the EPA limit 10000 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Fluoride
880 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Copper
151.9 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Nitrite
100 µg/L 10%
of the EPA limit 1000 µg/L
Highest in the ZIP: FIRCREST CITY OF · 7,927 people · 2019
1/2 SYR4
Barium
44 µg/L 2.2%
of the EPA limit 2000 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
TTHM
33.847 µg/L 42%
of the EPA limit 80 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Chloroform
31 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
31 µg/L 52%
of the EPA limit 60 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Trichloroacetic Acid
19 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Dichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Arsenic
6.73 µg/L 67%
of the EPA limit 10 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Bromodichloromethane
3.2 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Gross Beta Particle Activity
3.19 pCi/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2014
1/2 SYR4
Lead
2.91 µg/L 19%
of the EPA limit 15 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Monochloroacetic Acid
2.38 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Dibromochloromethane
2.18 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Chromium
1.65 µg/L 1.7%
of the EPA limit 100 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Trichloroethylene
1.58 µg/L 32%
of the EPA limit 5 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
Bromoform
1.2 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
2/2 SYR4
Mercury
0.7000 µg/L 35%
of the EPA limit 2 µg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2019
1/2 SYR4
PFBS
0.0033 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2025
Highest in the ZIP: 0.0054 µg/L — FIRCREST CITY OF · 7,927 people · 2025
2/2 UCMR-5
PFHXS
0.0051 µg/L
No EPA limit set
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2025
1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: TACOMA WATER DIVISION CITY OF · 446,170 people · 2025
Highest in the ZIP: 0.0014 mg/L — FIRCREST CITY OF · 7,927 people · 2025
2/2 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 98466

SupplierStatePopulation served
TACOMA WATER DIVISION CITY OF WA 446,170
FIRCREST CITY OF WA 7,927

Frequently asked questions about ZIP 98466 tap water

Is the tap water in ZIP 98466 safe to drink?

EPA testing detected 24 contaminants across the water suppliers serving ZIP 98466. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 98466?

2 public water suppliers report EPA drinking-water monitoring for ZIP 98466. Each is listed above with its population served.

What contaminants are in ZIP 98466's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.