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Water Hardness in Tubac, AZ

Arizona · 1 zip codes · 6 matched water systems

166 PPM
9.7 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 20266 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 6 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
6 USGS-backed sources
6 matched systems total for this city; 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 in Tubac

These systems are matched to Tubac, AZ. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

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.
Nogales City Of
AZ0412004
Moderately Hard
148 PPMgroundwater22,000 servedHigh Confidence — USGS Monitoring
Liberty Water Rio Rico
AZ0412011
Moderately Hard
165 PPMgroundwater17,960 servedHigh Confidence — USGS Monitoring
Epcor - Tubac
AZ0412001
Very Hard
291 PPMgroundwater2,076 servedHigh Confidence — USGS Monitoring
Baca Float Water Company
AZ0412037
Very Hard
291 PPMgroundwater1,090 servedHigh Confidence — USGS Monitoring
Avalon Gardens Water System
AZ0412044
Moderately Hard
148 PPMgroundwater100 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Tubac, AZ

What This Means For You

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

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Tubac, AZ.

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Frequently Asked Questions

How hard is the water in Tubac, AZ?

The citywide weighted average water hardness in Tubac, AZ is 166 PPM (9.7 GPG), classified as moderately hard. This is based on 6 matched water systems.

Do I need a water softener in Tubac, AZ?

With a citywide average hardness of 166 PPM, a water softener is worth considering for homes in Tubac. Confirm your tap reading before sizing equipment.

Is hard water in Tubac, AZ 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 Tubac, AZ?

Tubac, Arizona is served by 6 matched water systems across 1 zip code.

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