Where does the water in 38558 come from?

Water for zip code 38558 in Crab Orchard, Tennessee is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 38558

Q: Is the water hard in Crab Orchard, TN (38558)?

The average water hardness in 38558 is 20 PPM (1.1 GPG), which is classified as soft. No water treatment is typically needed.

Q: Do I need a water softener in 38558?

At 20 PPM, your water is relatively soft. A water softener is generally not necessary, though some homeowners prefer the feel of softened water.

Crab Orchard, Tennessee · Cumberland County

20 PPM

1.1 GPG

Soft

0Soft60120180300+

Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 4 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 4 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

4 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 38558

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.

4 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
Crossville Water Dept TN0000150	surface water	20 PPM Soft	31,973	Estimated — Nearby Data
Cumberland Plateau Water Authority TN0000147	surface water	20 PPM Soft	22,673	Estimated — Nearby Data
South Cumberland U.D. TN0000159	surface water	20 PPM Soft	12,233	Estimated — County Avg
West Cumberland U.D. TN0000557	surface water	20 PPM Soft	5,659	Estimated — Nearby Data

Crossville Water Dept

TN0000150

Soft

20 PPMsurface water31,973 servedEstimated — Nearby Data

Cumberland Plateau Water Authority

TN0000147

Soft

20 PPMsurface water22,673 servedEstimated — Nearby Data

South Cumberland U.D.

TN0000159

Soft

20 PPMsurface water12,233 servedEstimated — County Avg

West Cumberland U.D.

TN0000557

Soft

20 PPMsurface water5,659 servedEstimated — Nearby Data

Nearby Zip Codes

3772320 3855520 3785489 3772687 3782987 3788787 38553479 37337102 3777087 38565479 37748105 3787287

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 Crab Orchard, TN (38558).

Submit Your Data

Frequently Asked Questions

Is the water hard in Crab Orchard, TN (38558)?

Our estimate for 38558 is 20 PPM (1.1 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 38558?

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

Is hard water in 38558 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 38558?

Zip code 38558 in Crab Orchard, Tennessee is served by 4 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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