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Tap water quality report

Port Townsend, WA

EPA monitoring detected 22 contaminants across the 11 water suppliers serving Port Townsend. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

11
water suppliers
33,908
people served
22
contaminants found
Washington rankings Lead in Washington PFAS in Washington

What was found in Port Townsend's water

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2440 µg/L 24%
of the EPA limit 10000 µg/L
Highest in the city: MOA TEL · 73 people · 2019
9/11 SYR4
Nitrate-Nitrite
2220 µg/L 22%
of the EPA limit 10000 µg/L
Highest in the city: MOA TEL · 73 people · 2015
8/11 SYR4
Fluoride
100 µg/L 2.5%
of the EPA limit 4000 µg/L
Highest in the city: SNOW CREEK · 156 people · 2016
2/11 SYR4
TTHM
61.18 µg/L 76%
of the EPA limit 80 µg/L
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 77.4 µg/L — QUIMPER · 14,548 people · 2019
6/11 SYR4
Chloroform
54.96 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 66.65 µg/L — QUIMPER · 14,548 people · 2019
5/11 SYR4
Total Haloacetic Acids (HAA5)
46.92 µg/L 78%
of the EPA limit 60 µg/L
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 52.26 µg/L — QUIMPER · 14,548 people · 2019
5/11 SYR4
Trichloroacetic Acid
31.6 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
4/11 SYR4
Dichloroacetic Acid
17.93 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 22.745 µg/L — QUIMPER · 14,548 people · 2019
4/11 SYR4
Copper
20 µg/L 1.5%
of the EPA limit 1300 µg/L
Highest in the city: QUIMPER · 14,548 people · 2019
1/11 SYR4
Bromodichloromethane
6.8 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 9 µg/L — QUIMPER · 14,548 people · 2019
5/11 SYR4
Arsenic
7.6 µg/L 76%
of the EPA limit 10 µg/L
Highest in the city: BYWATER BAY · 628 people · 2019
7/11 SYR4
Dibromochloromethane
0.9000 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
Highest in the city: 6.13 µg/L — MOA TEL · 73 people · 2018
6/11 SYR4
Bromoform
4.13 µg/L
No EPA limit set
Highest in the city: MOA TEL · 73 people · 2018
4/11 SYR4
Monochloroacetic Acid
3.48 µg/L
No EPA limit set
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2019
2/11 SYR4
Barium
3 µg/L 0.2%
of the EPA limit 2000 µg/L
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2013
1/11 SYR4
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
Highest in the city: TRITON COVE · 204 people · 2018
2/11 SYR4
Dibromoacetic Acid
1.675 µg/L
No EPA limit set
Highest in the city: MOA TEL · 73 people · 2018
2/11 SYR4
Combined Radium (-226 And -228)
0.7000 pCi/L 14%
of the EPA limit 5 pCi/L
Highest in the city: SNOW CREEK · 156 people · 2017
1/11 SYR4
1,1,1-Trichloroethane
0.4000 µg/L 0.2%
of the EPA limit 200 µg/L
Highest in the city: QUIMPER · 14,548 people · 2019
1/11 SYR4
Combined Uranium
0.4000 µg/L 1.3%
of the EPA limit 30 µg/L
Highest in the city: MOA TEL · 73 people · 2016
1/11 SYR4
PFBS
0.0031 µg/L
No EPA limit set
Highest in the city: QUIMPER · 14,548 people · 2024
1/11 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: PORT TOWNSEND CITY OF · 17,053 people · 2025
11/11 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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Port Townsend

SupplierPopulation served
PORT TOWNSEND CITY OF 17,053
QUIMPER 14,548
BYWATER BAY 628
GARDINER LUD 1 379
LAZY C 367
Coyle 329
TRITON COVE 204
SNOW CREEK 156
QUILCENE 119
MOA TEL 73
MATS VIEW 52

Frequently asked questions about Port Townsend tap water

Is Port Townsend tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Port Townsend. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Port Townsend?

11 public water suppliers report drinking-water monitoring for Port Townsend, Washington to the EPA. Each is listed above with its population served.

What contaminants are in Port Townsend's water?

The contaminants EPA monitoring detected in Port Townsend include Nitrate, Nitrate-Nitrite, Fluoride, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.