Parma Heights Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
river
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
326.7 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · Updated 2026
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 Parma Heights, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Parma Heights | 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 Parma Heights compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Parma Heights, Ohio | ≈ 120–179 mg/L | 6.4 ppt | 🟠 Hard | river |
| Parma, Ohio | ≈ 120–179 mg/L | 6.4 ppt | 🟠 Hard | river |
| Brook Park, Ohio | ≈ 120–179 mg/L | 6.9 ppt | 🟠 Hard | river |
| Brooklyn, Ohio | ≈ 120–179 mg/L | 7 ppt | 🟠 Hard | groundwater |
| Middleburg Heights, Ohio | ≈ 120–179 mg/L | 4.5 ppt | 🟠 Hard | groundwater |
National Benchmark
How Parma Heights compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Parma Heights | ≈ 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 Parma Heights's Water Unique?
Local geology and source profile
Cleveland Division of Water supplies Parma Heights, Ohio, in Cuyahoga County. Water is drawn from Lake Erie via intake cribs approximately 3 miles offshore and treated at the Division Avenue Water Treatment Plant and the Bates Road Water Plant, together serving over 700,000 customers across Cleveland and surrounding suburbs. The Lake Erie watershed spans New York, Pennsylvania, Ohio, and Ontario, fed by rivers including the Detroit and Niagara. Treatment processes include coagulation, filtration, disinfection with chlorine, and fluoride addition.
The Lake Erie basin sits atop Devonian limestone and shale formations that dissolve calcium and magnesium into surface runoff flowing toward the lake, creating a moderately mineralised profile. Glacial history shaped the basin with carbonate-rich till and moraines that contribute additional dissolved minerals. Without deep aquifer filtration or softening from peat or sandstone layers, the resulting water carries a moderately hard mineral character typical of Great Lakes surface supplies.
Moderately hard water promotes scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan over time. Mineral deposits can clog fixtures and leave spots on glassware. Regular maintenance — including annual flushing of water heaters, cleaning aerators, and vinegar descaling — is advised. A water softener is recommended for households to prevent scaling and improve soap efficiency. Cleveland Division of Water maintains compliance with EPA Safe Drinking Water Act standards; Parma Heights reported zero violations since 2023, with compliant lead and copper levels via corrosion control and no specific PFAS exceedances noted in recent reports. Residents may notice an occasional chlorine taste; pH is typically neutral.
Geology & Source: Lake Erie watershed; Devonian limestone and dolomite in drainage area dissolve calcium and magnesium into surface water — glacial till and moraines add minerals, producing moderate hardness
Other Ohio Water Reports
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Frequently Asked Questions
Is Parma Heights's water safe to drink?
Do I need a water softener in Parma Heights?
How does Parma Heights compare to the USA average?
Data Sources & Methodology
Water quality data for Parma Heights is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
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.
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.
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.
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.
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.
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.