Water Hardness in Lopez, WA
Washington · 1 zip codes · 11 matched water systems
Dataset updated March 9, 202611 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
How this city reading is built
This city reading is a weighted rollup across 11 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.
Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.
Water Systems in Lopez
These systems are matched to Lopez, WA. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
Fisherman Bay Water Association WA5325547 | groundwater | 289 PPM Very Hard | |
Mackaye Harbor Water District WA5312911 | groundwater | 289 PPM Very Hard | |
North Lopez Service WA5360665 | groundwater | 289 PPM Very Hard | |
Harbor On Fisherman Bay WA5331024 | groundwater | 289 PPM Very Hard | |
Aleck Bay Park Water System WA5301338 | groundwater | 289 PPM Very Hard |
Zip Codes in Lopez, WA
What This Means For You
Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Very Hard Water - Treatment Strongly Recommended
Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water
Know your water hardness?
If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Lopez, WA.
Frequently Asked Questions
How hard is the water in Lopez, WA?
The citywide weighted average water hardness in Lopez, WA is 286 PPM (16.7 GPG), classified as very hard. This is based on 11 matched water systems.
Do I need a water softener in Lopez, WA?
With a citywide average hardness of 286 PPM, a water softener is recommended for homes in Lopez. Confirm your tap reading before sizing equipment.
Is hard water in Lopez, WA safe to drink?
Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.
How many water systems serve Lopez, WA?
Lopez, Washington is served by 11 matched water systems across 1 zip code.
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