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Westport Tap Water Quality Report
Westport's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
Water system
WESTPORT WATER DEPARTMENT
People Served
5,346
Health-based violations since 2020
4
WESTPORT WATER DEPARTMENT. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Oct 2024 ยท WESTPORT WATER DEPARTMENT
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Westport Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Westport's water has 1 contaminant above EPA health-based guidelines (MCLGs).
WESTPORT WATER DEPARTMENT, Westport's water system, serves 5,346 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for WESTPORT WATER DEPARTMENT is from Oct 2024.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Washington
Westport Water Service Areas

What these numbers actually mean for Westport, WA
We read Westport, WAโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs, 5 contaminants with an EPA health goal detected in some samples (no level on file) and 4 health-based EPA violations that began after the latest compliance result on file
- 134 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report โ $49 Emailed within one business day.
Fluoride in Westport's water
WESTPORT WATER DEPARTMENT
PWSID WA5395300
WESTPORT WATER DEPARTMENT reported no detectable fluoride.
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Recommended Water Filters for Westport
Based on Westport's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)

AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium

Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:

Waterdrop
G3 P800
NSF Certified:
Flow Rate
800 gpm
Daily Production
800 gpd
Highlights:
- High water production rate
- Modern design
- No tank needed
- NSF-42, NSF-53, NSF-58, NSF-372 certified
Removes 15 contaminants:
+10 more
Chlorine, Copper, Manganese, Potassium, Selenium, Total Dissolved Solids, Nitrate, Chloride, Sodium, Strontium
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.

Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Westport's water readings can explain
Utility-reported data for Westport includes manganese, turbidity and a chlorine-based disinfectant โ the readings behind these common tap water questions. We publish a city-level hardness figure for Westport, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Westport? Public-water results do not apply to private wells. See Grays Harbor County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Westport
Westport's tap water has an estimated 1.3 grains per gallon (22.7 mg/L, county sampling in Grays Harbor County) โ soft on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for an estimated 1.3 gpg water in Westport โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs โ equipment, installation labour and ten-year ownership, each separated out. For Washington as a whole, read water softener cost in Washington โ priced against the plumber wage published for the state.
Frequently Asked Questions About Westport Tap Water
Westport's water has 1 contaminant above EPA MCLGs. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. EPA records 4 health-based violations for WESTPORT WATER DEPARTMENT that began after its latest compliance result on file (May 2023): Maximum Contaminant Level Violation, Single Sample (Arsenic), 4 violations, the first beginning on July 1, 2024 and the latest on April 1, 2025. Every such result predates them; its later EPA UCMR 5 results (Oct 2024) screen for unregulated contaminants and cannot show the water met this standard, so this page does not call the water safe.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach WESTPORT WATER DEPARTMENT. For a problem with your water now (discolored water, no water, low pressure, a leak), contact WESTPORT WATER DEPARTMENT directly.
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