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Water Hardness in 78379

Riviera, Texas · Kleberg County

89 PPM
5.2 GPG
Slightly Hard
0Soft60120180300+
High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 3 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 3 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
3 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 78379

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.

3 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.
City Of Kingsville
TX1370001
Slightly Hard
88 PPMsurface water25,402 servedEstimated - County Avg
Baffin Bay Wsc
TX1370032
Slightly Hard
102 PPMgroundwater1,125 servedHigh Confidence - USGS Monitoring
Riviera Wcid
TX1370007
Slightly Hard
102 PPMgroundwater729 servedHigh Confidence - USGS Monitoring

Nearby Zip Codes

7836378783851027837515378343308783551787834731078418310783513107841531078414310

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

MethodologyData sourcesHow to test your 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 Riviera, TX (78379).

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Frequently Asked Questions

Is the water hard in Riviera, TX (78379)?

The average water hardness in 78379 is 89 PPM (5.2 GPG), which is classified as slightly hard.

Do I need a water softener in 78379?

At 89 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 78379 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 78379?

Zip code 78379 in Riviera, Texas is served by 3 water systems.

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