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Water Hardness in 35646

Leighton, Alabama · Colbert County

182 PPM
10.6 GPG
Hard
0Soft60120180300+
High Confidence — USGS Monitoring

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
2 USGS-backed sources
6 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 35646

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.
Muscle Shoals Utility Board
AL0000321
Hard
182 PPMsurface water22,467 servedEstimated — County Avg
Tuscumbia Water Works
AL0000331
Hard
182 PPMsurface water14,400 servedEstimated — Nearby Data
Sheffield Utitlies, City Of Sheffield Db
AL0000327
Hard
182 PPMsurface water13,758 servedEstimated — Nearby Data
Colbert County Rural Water System
AL0000314
Hard
182 PPMsurface water13,395 servedEstimated — Nearby Data
Lagrange Mountain Water Authority
AL0000318
Hard
181 PPMgroundwater1,242 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

What This Means For You

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

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 Leighton, AL (35646).

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Frequently Asked Questions

Is the water hard in Leighton, AL (35646)?

The average water hardness in 35646 is 182 PPM (10.6 GPG), which is classified as hard.

Do I need a water softener in 35646?

With hardness of 182 PPM, a water softener is recommended for homes in 35646.

Is hard water in 35646 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 35646?

Zip code 35646 in Leighton, Alabama is served by 6 water systems.

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