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Hamilton County · OH

Water filtration in Harrison

Harrison runs 8 grains per gallon through City of Harrison Water Department, which puts it in the hard band. Hard, but not extreme. It is enough to leave scale in a water heater over time, which is what shortens its life. Reverse osmosis softening plant, online since October 2022.

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Local water profile

8 grains per gallon — hard water, supplied by City of Harrison Water Department.

Neighborhoods we serve

  • New Haven
  • Harrison Greene
Water profile

Harrison water is 8 grains per gallon.

That is classed as hard water. It comes from City of Harrison Water Department, per the City of Harrison water softener FAQ.

Hardness
8 grains per gallonHard
Source
Great Miami Aquifer, four wells
Treatment
Reverse osmosis softening plant, online since October 2022.
Worth knowing
Harrison delivered 21 grains before the RO plant went in. It now targets 8. If your softener predates October 2022 and has not been reset, it is over-softening and wasting salt.

Source: City of Harrison water softener FAQ, 2022 reporting year. Hardness bands follow the Water Quality Association scale: soft under 3.5 grains, moderate 3.5 to 7, hard 7 to 10.5, very hard above 10.5.

What that means here

This is hard water. It will not ruin anything overnight, but scale accumulates inside the water heater over years, which is what shortens its life.

~6
bags of salt a year

At 8 grains, for a four-person household using about 300 gallons a day. Fewer people or a more efficient softener uses less.

8
grains per gallon

Hard on the Water Quality Association scale. Soft is under 3.5, hard starts at 7, very hard above 10.5.

Wyoming, in the same county, runs about 1.3x harder at 10.1 grains. Hardness here is set by which utility serves the address, not by the county line.

Common questions

How hard is the water in Harrison, OH?

Water in Harrison, OH is 8 grains per gallon, which is classed as hard water. It is supplied by City of Harrison Water Department from great Miami Aquifer, four wells, per the City of Harrison water softener FAQ (2022).

Who supplies the water in Harrison, OH?

Harrison is served by City of Harrison Water Department. The water comes from great Miami Aquifer, four wells. Reverse osmosis softening plant, online since October 2022.

Do I need a water softener in Harrison, OH?

At 8 grains per gallon, Harrison water is hard. Water above 7 grains per gallon causes scale in water heaters and fixtures and reduces soap lather, which is the point at which most homes benefit from a softener.

What parts of Harrison do you cover?

All of Harrison, including New Haven and Harrison Greene. Flat-rate pricing across the whole service area, with no travel charge between neighborhoods.

How much salt will a softener use in Harrison?

At 8 grains per gallon, a four-person household using roughly 300 gallons a day goes through about 6 forty-pound bags of softener salt a year. Smaller households and higher-efficiency softeners use less.

Is anything unusual about Harrison water?

Harrison delivered 21 grains before the RO plant went in. It now targets 8. If your softener predates October 2022 and has not been reset, it is over-softening and wasting salt.

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Source: EWG Tap Water Database, Ohio + Greater Cincinnati Water Works. EWG's database includes results of tests conducted by Cincinnati-area water utilities and provided to EWG by the Ohio EPA. Data shown covers 2013–2026.

Disclaimer: The lookup tool is for informational purposes only. It summarizes findings reported across Cincinnati-area water systems. Your exact water may vary by utility, plumbing condition, well status, and local conditions. For exact results, check your utility's annual water quality report, look up your utility on EWG, or request a current water test.

Honest Water Ohio is not affiliated with EWG or Greater Cincinnati Water Works. These public data sources are cited for educational purposes only and do not replace a water test, utility report, or professional water analysis.

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