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Punta Gorda Isles Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.6

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

236.7 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 Punta Gorda Isles, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn Punta Gorda IslesSoft 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 Punta Gorda Isles compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Punta Gorda Isles, Florida≈ 120–179 mg/L36.7 ppt🟠 Hardreservoir
Punta Gorda, Florida≈ 180+ mg/L36.7 ppt🔴 Very Hardreservoir
Port Charlotte, Florida≈ 180+ mg/L66 ppt🔴 Very Hardreservoir
North Port, Florida≈ 120–179 mg/L119.9 ppt🟠 Hardreservoir
Englewood, Florida≈ 180+ mg/L0 ppt🔴 Very Hardgroundwater

National Benchmark

How Punta Gorda Isles compares to the USA average

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

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What Makes Punta Gorda Isles's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 236.7 mg/LpH: 7.6

The City of Punta Gorda Utility Department serves Punta Gorda Isles and surrounding areas in Charlotte County, Florida, with a population of approximately 29,749. Water is sourced from surface water in Shell Creek, impounded for treatment at the city's surface water treatment plant at 326 W. Marion Avenue. The utility uses conventional treatment methods with chloramines as the primary disinfectant. For service inquiries, contact the utility at (941) 575-5001 or the emergency line at (941) 639-2057. Annual Consumer Confidence Reports are published and available on request at (941) 575-3339.

Shell Creek watershed feeds the Punta Gorda water supply, part of the broader Peace River system flowing into Charlotte Harbor estuary in southwest Florida. The local geology features the Floridan aquifer, composed of permeable limestone from the Hawthorn Group (Oligocene–Miocene) with high dissolved calcium and magnesium content. This karst carbonate environment imparts a hard character to the surface water, as creek flow interacts with coastal plain limestone formations, elevating mineral levels characteristic of Florida's karst terrain.

Hard water in this area leads to scale buildup on fixtures, dishes, and appliances such as coffee makers, dishwashers, and water heaters; faucets and showerheads may corrode over time, reducing efficiency. Maintenance includes soaking in white vinegar to dissolve deposits, using vinegar as a dishwasher rinse agent, and regular cleaning of brewing appliances. A water softener is recommended to prevent scaling and extend appliance life. Potential contaminants from agricultural runoff include o-Xylene and pesticide degradates such as DCPA mono- and di-acid; the supply meets EPA standards with surface water monitored for ongoing compliance.

Geology & Source: Shell Creek watershed — Peace River basin, southwest Florida; Floridan aquifer karst limestone from Hawthorn Group (Oligocene-Miocene); calcium carbonate dissolution from coastal plain carbonate rocks produces hard surface water

Other Florida Water Reports

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Frequently Asked Questions

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