Where does the water in 76446 come from?

Water for zip code 76446 in Dublin, Texas is provided by 5 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 76446

Dublin, Texas · Erath County

119 PPM

6.9 GPG

Slightly Hard

0Soft60120180300+

High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 5 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 5 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

1 USGS-backed source

5 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.

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 76446

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.

5 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
City Of Stephenville TX0720002	surface water	94 PPM Slightly Hard	23,110	High Confidence — USGS Monitoring
City Of Dublin TX0720001	surface water	234 PPM Hard	3,388	Estimated — Nearby Data
Green Creek Wsc TX0720028	surface water	234 PPM Hard	555	Estimated — Nearby Data
Morgan Mill Wsc TX0720012	groundwater	298 PPM Very Hard	522	Estimated — County Avg
Equestrian Estates TX0720034	groundwater	298 PPM Very Hard	129	Estimated — Nearby Data

City Of Stephenville

TX0720002

Slightly Hard

94 PPMsurface water23,110 servedHigh Confidence — USGS Monitoring

City Of Dublin

TX0720001

Hard

234 PPMsurface water3,388 servedEstimated — Nearby Data

Green Creek Wsc

TX0720028

Hard

234 PPMsurface water555 servedEstimated — Nearby Data

Morgan Mill Wsc

TX0720012

Very Hard

298 PPMgroundwater522 servedEstimated — County Avg

Equestrian Estates

TX0720034

Very Hard

298 PPMgroundwater129 servedEstimated — Nearby Data

Nearby Zip Codes

76444234 76401112 76436100 76455539 76442234 76445405 76457298 76454405 76452100 76474149 76433101 76432539

What This Means For You

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

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Water Hardness Test Kit

Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)

Salt-Free Water Conditioner

Our PickSpringWell Salt-Free Cartridge

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | 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 Dublin, TX (76446).

Submit Your Data

Frequently Asked Questions

Is the water hard in Dublin, TX (76446)?

The average water hardness in 76446 is 119 PPM (6.9 GPG), which is classified as slightly hard.

Do I need a water softener in 76446?

At 119 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 76446 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 76446?

Zip code 76446 in Dublin, Texas is served by 5 water systems.