Is Vancouver, WA Tap Water Safe to Drink?
Vancouver tap water is legally compliant, but one contaminant exceeds health guidelines. Specifically: PFAS above EPA limits (PFOA: 6.61 ppt, PFOS: 10.98 ppt — limit is 4 ppt each). A point-of-use filter is recommended for drinking and cooking water.
Hardness Scale: Where Vancouver Falls
0Slightly
60Moderate
120Hard
180Very Hard
250Extreme
400+
How Vancouver Compares
Vancouver's water is 91% softer than the national average of 138 PPM - ranking in the bottom 99% for hardness nationwide. Most homes here do not need a softener. Within Washington, it ranks #25 of 26 cities (61% below the state average of 33 PPM). Among large cities (200k-500k), Vancouver ranks #165 of 165 for hardness.
What Vancouver's Water Means for Your Home
Hardness: 13 PPM - Low Concern
Vancouver's water is soft at just 13 PPM. That's good news for your plumbing, appliances, and skin. Scale buildup is a non-issue here, and a water softener would be a waste of money. Vancouver is softer than 99% of US cities. If you're thinking about water treatment in Vancouver, contaminant filtration is the place to invest.
Contaminants & Safety
Forever chemicals (PFAS) are a serious concern here. Vancouver has PFOA at 6.61 ppt and PFOS at 10.98 ppt — the EPA's 2024 limit is 4 ppt for PFOA and PFOS individually. PFAS don't break down in your body or the environment. Research links long-term exposure to increased cancer risk, thyroid issues, and immune system problems. The fix: a whole-house activated carbon filter or a point-of-use reverse osmosis system. Look for NSF P473 certification — that's the standard that specifically tests for PFAS removal.
What's in the Treatment Process
Chromium-6 is naturally present in Vancouver's aquifer geology at 0.282 ppb — 14x the EWG health guideline. There's no federal legal limit for chromium-6 specifically (only total chromium), which is why EWG tracks it separately. All measurements are within federal legal limits. The EWG guidelines represent a more conservative, health-based standard.
| Contaminant | Detected | Health Guideline | Legal Limit | Status |
|---|---|---|---|---|
| Hardness (as CaCO₃) | 13 PPM | < 60 PPM | No federal limit | ✓ OK |
| Total Dissolved Solids | 27 PPM | < 300 PPM | 500 PPM | ✓ OK |
| PFAS (total) | 40.35 ppt | — | No total limit | Detected |
| ↳ PFOA | 6.61 ppt | 0 ppt | 4 ppt (2024) | ⚠ Exceeds |
| ↳ PFOS | 10.98 ppt | 0 ppt | 4 ppt (2024) | ⚠ Exceeds |
| Lead | 2.2 ppb | 0 ppb (no safe level) | 15 ppb (10 ppb in 2027) | ✓ Low |
| Chlorine / Chloramine | 0.6 mg/L | Taste threshold ~1.0 | 4.0 mg/L | ✓ Normal |
| Nitrate | 3.63 mg/L | 5 mg/L | 10 mg/L | ✓ OK |
Recommended Filter for Vancouver
PFAS exceed EPA limits (PFOA: 6.61 ppt, PFOS: 10.98 ppt — limit: 4 ppt each). A certified filter reduces these contaminants effectively.
How to Test Your Water in Vancouver
With PFAS at 40.35 ppt in Vancouver's supply, confirming your home's specific levels is especially important. PFAS vary by neighborhood and can concentrate differently depending on your position in the distribution system.
Free option: Request Clark PUD's annual Consumer Confidence Report for official city-level data.
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About Vancouver's Water Supply
Water Utility: Clark PUD
Water Source: Groundwater wells (Groundwater)
Population Served: 373,047
Hardness: 13 PPM (0.8 grains per gallon)
Vancouver draws its drinking water from groundwater sources — Groundwater wells. Groundwater typically requires less treatment than surface water because the earth acts as a natural filter. The tradeoff: dissolved minerals from underground rock formations, which is why mineral content varies by aquifer depth and geology. The geological profile determines hardness, iron, and trace mineral levels. The system serves 373,000 residents.
Water quality can vary by neighborhood and season. For your exact numbers, request Clark PUD's Consumer Confidence Report (CCR) or test your own tap.
ZIP Codes Covered by This Report
This water quality data applies to all areas served by Clark PUD in Vancouver, WA, including ZIP codes:
98604, 98606, 98622, 98660, 98661, 98662, 98663, 98664, 98665, 98666, 98668, 98682, 98683, 98684, 98685, 98686, 98687
If your ZIP code is listed above, this report covers your water supply. Water quality may vary slightly by neighborhood.
Compare Vancouver to Other Washington Cities
Frequently Asked Questions About Vancouver Water
Is Vancouver tap water safe to drink?
Where does Vancouver's water come from?
Do I need a water softener in Vancouver?
How do I remove PFAS from Vancouver tap water?
What water filter is best for Vancouver?
Is Vancouver water safe for babies and infants?
What are disinfection byproducts in Vancouver's water?
Is chromium-6 in Vancouver's water?
Data sources: Lead and copper data from EPA Safe Drinking Water Act LCR reporting. Contaminant data from utility-reported testing results. PFAS data from EPA UCMR5 (2023–2025). Hardness from USGS and municipal reports. Data reflects system-level testing results and may not match your specific tap due to neighborhood plumbing, season, or recent utility changes. For your utility's latest results, request their Consumer Confidence Report (CCR). Our methodology. Last updated: 2026-02-24.
What Vancouver Homeowners Actually Buy
Prioritized for contaminant reduction for homes with 13 PPM water and PFAS above EPA limits.
Affiliate disclosure: we may earn a commission. Selection based on Vancouver's water data.