How does Florence's water compare to the national average?

The USA national average is 151 mg/L. Florence (≈ 120–179 mg/L) is 1 mg/L softer than average.

Florence Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

8.3

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

545.8 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Florence, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Florence	Soft Water City	Efficiency Loss
Kettle	6.8 yrs	8.5 yrs	-20%
Washing Machine	9.6 yrs	12 yrs	-20%
Water Heater	12 yrs	15 yrs	-20%

Regional Water Comparison

How Florence compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Florence, Arizona	≈ 120–179 mg/L	94.1 ppt	🟠 Hard	groundwater
Coolidge, Arizona	≈ 120–179 mg/L	4.7 ppt	🟠 Hard	groundwater
San Tan Valley, Arizona	≈ 180+ mg/L	0 ppt	🔴 Very Hard	groundwater
Gold Camp, Arizona	≈ 120–179 mg/L	5.1 ppt	🟠 Hard	mixed
Eloy, Arizona	≈ 180+ mg/L	0 ppt	🔴 Very Hard	groundwater

National Benchmark

How Florence compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Florence	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Florence's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 545.8 mg/LpH: 8.3

The Town of Florence Water Department operates a public water system serving the Town of Florence in Pinal County, Arizona. The utility's drinking water originates exclusively from groundwater sources pumped from four active drinking wells distributed throughout the water service area. No surface water sources — rivers or reservoirs — are used in the Florence supply system.

Florence's groundwater is drawn from the San Pedro Valley aquifer, which underlies the region and consists of Quaternary and Tertiary alluvial deposits overlying Paleozoic limestone and dolomite formations, as well as Precambrian basement rock. This geological setting is typical of Arizona's Basin and Range province, where mineral-rich groundwater is common, and the aquifer's composition naturally produces water with elevated mineral content.

Florence's groundwater supply exhibits hard-water characteristics typical of Arizona municipal systems. Residents should expect mineral buildup in appliances, reduced soap effectiveness, and potential scaling in pipes and water heaters. Water softening or treatment may be beneficial for households with sensitive appliances. The Town of Florence publishes annual Consumer Confidence Reports available at florenceaz.gov/water-quality/, where current pH, lead, copper, and contaminant data can be found.

Geology & Source: San Pedro Valley aquifer — Quaternary and Tertiary alluvial deposits overlying Paleozoic limestone, dolomite, and Precambrian bedrock; calcium and magnesium carbonate dissolution produces hard water typical of Arizona desert aquifers

Other Arizona Water Reports

Coolidge

≈ 120–179 mg/L

🟠 Hard

San Tan Valley

≈ 180+ mg/L

🔴 Very Hard

Gold Camp

≈ 120–179 mg/L

🟠 Hard

Eloy

≈ 180+ mg/L

🔴 Very Hard

Report an Issue

Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Florence's water safe to drink?

Yes. Florence's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Florence?

At ≈ 120–179 mg/L (Hard), Florence's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.

How does Florence compare to the USA average?

The USA national average is 151 mg/L. Florence (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Florence is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.