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Water Hardness in 70342

Berwick, Louisiana · St. Mary Parish County

123 PPM
7.2 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

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
1 USGS-backed source
4 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 70342

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.
Morgan City Water System
LA1101005
Moderately Hard
123 PPMsurface water12,703 servedEstimated — County Avg
St Mary Water & Sewer Comm #3
LA1101010
Moderately Hard
123 PPMsurface water7,500 servedEstimated — Nearby Data
St Mary Parish Water Sewerage Comm 1
LA1101009
Moderately Hard
123 PPMsurface water2,823 servedEstimated — Nearby Data
Berwick Bayou Vista Ww Commission
LA1101002
Moderately Hard
123 PPMsurface water0 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 Berwick, LA (70342).

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Frequently Asked Questions

Is the water hard in Berwick, LA (70342)?

The average water hardness in 70342 is 123 PPM (7.2 GPG), which is classified as moderately hard.

Do I need a water softener in 70342?

With hardness of 123 PPM, a water softener is worth considering for homes in 70342.

Is hard water in 70342 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 70342?

Zip code 70342 in Berwick, Louisiana is served by 4 water systems.

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