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Water Hardness in 70040

Braithwaite, Louisiana · Plaquemines Parish County

145 PPM
8.5 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 2 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 2 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
2 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 70040

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.

2 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.
Belle Chasse Water District
LA1075001
Moderately Hard
145 PPMsurface water19,644 servedHigh Confidence — USGS Monitoring
Port Sulphur Water District
LA1075006
Moderately Hard
145 PPMsurface water10,308 servedHigh Confidence — USGS Monitoring

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 Braithwaite, LA (70040).

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Frequently Asked Questions

Is the water hard in Braithwaite, LA (70040)?

The average water hardness in 70040 is 145 PPM (8.5 GPG), which is classified as moderately hard.

Do I need a water softener in 70040?

With hardness of 145 PPM, a water softener is worth considering for homes in 70040.

Is hard water in 70040 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 70040?

Zip code 70040 in Braithwaite, Louisiana is served by 2 water systems.

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