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Water Hardness in 70517

Henderson, Louisiana · St. Martin Parish County

186 PPM
10.9 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
1 USGS-backed source
6 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 70517

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.
Village Of Parks Water System
LA1099008
Very Hard
259 PPMgroundwater12,801 servedEstimated — Nearby Data
Cecilia Water Corporation
LA1099005
Very Hard
259 PPMgroundwater12,249 servedEstimated — County Avg
Bayou Teche Water Works
LA1099002
Very Hard
259 PPMgroundwater10,137 servedHigh Confidence — USGS Monitoring
City Of Breaux Bridge Water System
LA1099003
Soft
1 PPMgroundwater8,754 servedEstimated — Nearby Data
Henderson Nina Water System Inc
LA1099006
Soft
1 PPMgroundwater5,136 servedEstimated — Nearby Data
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 Henderson, LA (70517).

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Frequently Asked Questions

Is the water hard in Henderson, LA (70517)?

The average water hardness in 70517 is 186 PPM (10.9 GPG), which is classified as hard.

Do I need a water softener in 70517?

With hardness of 186 PPM, a water softener is recommended for homes in 70517.

Is hard water in 70517 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 70517?

Zip code 70517 in Henderson, Louisiana is served by 6 water systems.

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