← Warden, WA

Tap water quality report

ZIP 98857 — Warden, WA

EPA monitoring across the 1 water supplier serving ZIP 98857 in Warden, WA detected 21 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

1
water supplier
4,674
people served
21
contaminants found

What was found in ZIP 98857

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
15900 µg/L 159%
of the EPA limit, in the worst sample — 10000 µg/L
1/1 SYR4
Nitrate-Nitrite
15900 µg/L 159%
of the EPA limit, in the worst sample — 10000 µg/L
1/1 SYR4
Fluoride
911 µg/L 23%
of the EPA limit 4000 µg/L
1/1 SYR4
TTHM
29.35 µg/L 37%
of the EPA limit 80 µg/L
1/1 SYR4
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
1/1 SYR4
Bromoform
14.8 µg/L
No EPA limit set
1/1 SYR4
Dibromochloromethane
10.8 µg/L
No EPA limit set
1/1 SYR4
Lithium
9.3 µg/L
No EPA limit set
1/1 UCMR-5
Arsenic
5.93 µg/L 59%
of the EPA limit 10 µg/L
1/1 SYR4
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
1/1 SYR4
Copper
3.67 µg/L 0.3%
of the EPA limit 1300 µg/L
1/1 SYR4
Dibromoacetic Acid
3.3 µg/L
No EPA limit set
1/1 SYR4
Total Haloacetic Acids (HAA5)
3.3 µg/L 5.5%
of the EPA limit 60 µg/L
1/1 SYR4
Bromodichloromethane
3.25 µg/L
No EPA limit set
1/1 SYR4
Chromium
1.5 µg/L 1.5%
of the EPA limit 100 µg/L
1/1 SYR4
Chloroform
0.7900 µg/L
No EPA limit set
1/1 SYR4
Trichloroethylene
0.7100 µg/L 14%
of the EPA limit 5 µg/L
1/1 SYR4
Lead
0.3000 µg/L 2%
of the EPA limit 15 µg/L
1/1 SYR4
Thallium, Total
0.2800 µg/L 14%
of the EPA limit 2 µg/L
1/1 SYR4
Ethylene Dibromide
0.1180 µg/L 236%
of the EPA limit, in the worst sample — 0.0500 µg/L
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
1/1 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 98857

SupplierStatePopulation served
WARDEN CITY OF WA 4,674

Frequently asked questions about ZIP 98857 tap water

Is the tap water in ZIP 98857 safe to drink?

EPA testing detected 21 contaminants across the water suppliers serving ZIP 98857. 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 98857?

1 public water supplier report EPA drinking-water monitoring for ZIP 98857. Each is listed above with its population served.

What contaminants are in ZIP 98857's water?

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