Where does the water in 04578 come from?

Water for zip code 04578 in Wiscasset, Maine is provided by 6 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 04578

Q: Is the water hard in Wiscasset, ME (04578)?

The average water hardness in 04578 is 9 PPM (0.5 GPG), which is classified as soft. No water treatment is typically needed.

Q: Do I need a water softener in 04578?

At 9 PPM, your water is relatively soft. A water softener is generally not necessary, though some homeowners prefer the feel of softened water.

Wiscasset, Maine · Lincoln County

9 PPM

0.5 GPG

Soft

0Soft60120180300+

Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 6 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 6 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis

6 estimated sources

This ZIP reading needs local confirmation before equipment sizing or purchase decisions.

Water source profile

Primarily surface water

Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.

Data recency

March 9, 2026

Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

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 Serving 04578

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

6 water systems

PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.

Water System	Source	Hardness	Pop. Served	Data Source
Bath Water District ME0090130	surface water	6 PPM Soft	9,290	Estimated — Nearby Data
Wiscasset Water District ME0091660	surface water	6 PPM Soft	1,970	Estimated — Nearby Data
Northport Village Corp Water Dept ME0091165	groundwater	67 PPM Slightly Hard	550	Estimated — Nearby Data
Loring Development Authority ME0090915	surface water	6 PPM Soft	180	Estimated — Nearby Data
Dresden Water Department ME0092303	groundwater	67 PPM Slightly Hard	43	Estimated — Nearby Data

Bath Water District

ME0090130

Soft

6 PPMsurface water9,290 servedEstimated — Nearby Data

Wiscasset Water District

ME0091660

Soft

6 PPMsurface water1,970 servedEstimated — Nearby Data

Northport Village Corp Water Dept

ME0091165

Slightly Hard

67 PPMgroundwater550 servedEstimated — Nearby Data

Loring Development Authority

ME0090915

Soft

6 PPMsurface water180 servedEstimated — Nearby Data

Dresden Water Department

ME0092303

Slightly Hard

67 PPMgroundwater43 servedEstimated — Nearby Data

Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

045796 0455620 045376 0434220 0457320 045538 0453520 045306 0456820 0453820 0400867 0453920

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Wiscasset, ME (04578).

Submit Your Data

Frequently Asked Questions

Is the water hard in Wiscasset, ME (04578)?

Our estimate for 04578 is 9 PPM (0.5 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 04578?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 04578 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 04578?

Zip code 04578 in Wiscasset, Maine is served by 6 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

10 min read

How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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