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Highland City Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

8.5

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

1014 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 Highland City, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn Highland CitySoft Water CityEfficiency 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 Highland City compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Highland City, Florida≈ 120–179 mg/L12.2 ppt🟠 Hardgroundwater
Lakeland Highlands, Florida≈ 180+ mg/L0 ppt🔴 Very Hardgroundwater
Bartow, Florida≈ 180+ mg/L5.8 ppt🔴 Very Hardgroundwater
Lakeland, Florida≈ 120–179 mg/L0 ppt🟠 Hardgroundwater
Auburndale, Florida≈ 180+ mg/L0 ppt🔴 Very Hardgroundwater

National Benchmark

How Highland City compares to the USA average

BenchmarkHardnessAppliance Risk
Highland City≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Highland City's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 1014 mg/LpH: 8.5

Highland City, Florida, receives its water from City of Lakeland Water Utilities, which draws entirely from the Floridan Aquifer. This vast underground source provides the sole supply, treated at facilities like the North and South Water Treatment Plants. These plants serve not only Lakeland but also surrounding communities, including Highland City itself. The utility employs lime softening and filtration as key treatment steps. The watershed context is the Peace River Basin in central Florida, characterized by karst terrain where the Floridan Aquifer is prevalent.

The geology beneath Highland City is dominated by soluble carbonate rocks, primarily limestone and dolomite from the Eocene to Oligocene periods. These rock types are part of the Floridan Aquifer System, which includes formations like the Ocala Limestone and Avon Park Formation. As groundwater moves through these formations, it dissolves minerals like calcium and magnesium, characteristic of the region's limestone-dominated geology. While the Biscayne Aquifer may also influence shallower supplies locally, the underlying carbonate bedrock is the primary reason for the area's hard water profile.

Homeowners in Highland City will likely notice scale buildup in appliances such as water heaters, dishwashers, and washing machines, which can reduce their efficiency and lifespan. Fixtures may also develop unsightly limescale, and laundry might feel stiff after washing. Periodic descaling of appliances with vinegar can help manage mineral accumulation. Using rinse agents in dishwashers is also advised. For persistent issues, installing a whole-house water softener is often recommended to prevent mineral buildup and extend the life of your plumbing and equipment. Lakeland's water meets EPA standards, with post-treatment pH typically between 7 and 8.

Geology & Source: Floridan Aquifer System; limestone and dolomite formations (Eocene-Oligocene) impart significant hardness

Other Florida Water Reports

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Frequently Asked Questions

Is Highland City's water safe to drink?
Yes. Highland City'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 Highland City?
At ≈ 120–179 mg/L (Hard), Highland City'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 Highland City compare to the USA average?
The USA national average is 151 mg/L. Highland City (≈ 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 Highland City 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

pH

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.