Akron's reservoir water averages 107 mg/L hard, 76 to 150 with the seasons, and the older manufacturing frontage carries rubber-era industrial deposit.
Akron's reservoir water is moderately hard on average and swings with the seasons, sometimes into the hard band, so spots show on glass left to dry in sun. Old manufacturing frontage still carries rubber-era industrial deposits, and August to October is the best stretch to wash. Uniform planned districts let a crew finish more addresses a day, which keeps a single-story exterior at $260 to $440.
Akron's Water Supply Bureau publishes hardness from its own testing: 107 mg/L on average in 2025, from 76 to 150. The supply is a reservoir on a river system rather than a lake or an aquifer, which means the raw chemistry varies across the year with rainfall and runoff — which is why the range matters as much as the average.
| Hardness | 76–150 mg/L as CaCO₃ Averaging 107 mg/L; moderately hard, as published by City of Akron Water Supply. |
|---|---|
| pH | 7.4 (range 7–7.9) |
| Alkalinity | 77 mg/L as CaCO₃ (range 45–101) |
| Manganese | 0.013 mg/L (range 0.003–0.03) |
| Sodium | 56 mg/L |
| Chloride | 59 mg/L (range 38–139) |
| Disinfectant | free chlorine |
| Source and treatment | Surface water, per the EPA SDWIS federal record · Permanganate, powdered activated carbon and chlorine dioxide for taste, odour and byproduct control, coagulation, flocculation, rapid mix, sedimentation and rapid sand filtration, pre and post chlorination, fluoridation, with an orthophosphate inhibitor and pH adjustment · No softening step. |
Not in the report: corrosion index, iron and total dissolved solids.
SOURCE · City of Akron Water Supply Bureau 2025 Water Quality Report and 2025 All Water Tests sheet · How we source these numbers
Seasonal through and through. Tree pollen in spring from heavy canopy in the planned districts, ragweed from August until frost, and salt on lower storeys through a long dry-cold winter. Industrial frontage carries a constant bonded load on its own timetable. The most durable residential wash of the year is a late-spring one after pollen drop.
OHIO SEASON BY SEASON →Akron is the most predictable estimating environment in this cohort and the reason is corporate. Goodyear Heights and Firestone Park were planned districts built for the rubber workforce in the nineteen-tens and twenties, so whole neighbourhoods share a build era, a sash type and a replacement wave — learn one street and you have effectively learned several, which turns estimating from an address-by-address exercise into a phone call. The complication is that those districts have now reached the age where original sash are either long replaced or nearly finished, and telling a nineteen-nineties replacement from a recent one from an original matters for product choice. The water is reservoir-fed from the upper Cuyahoga rather than lake or well water, so the raw supply genuinely moves with rainfall; the bureau's own 2025 tests put hardness at 107 mg/L on average across 76 to 150, a range that moves with that seasonal source. Inland position means a drier winter than the lakeshore, shifting the cold risk to freeze-thaw.
Akron's housing is unusually legible because two corporations built large parts of it deliberately. Goodyear Heights and Firestone Park were planned districts put up for the rubber workforce in the nineteen-tens and twenties, which means whole neighbourhoods share a build era, a sash type and — critically — a replacement wave. A crew that learns one street there has effectively learned several.
That legibility is worth real money in estimating. In most cities a quote requires an address-by-address assessment because the stock is mixed; here a phone call and a street name gets a crew close, and the time saved on estimating is time available for work.
The water comes from a reservoir on the upper Cuyahoga rather than from a lake or a well field, which puts Akron on a surface supply with a genuine seasonal profile. Reservoir water moves with rainfall and runoff in a way open-lake water does not, so the raw chemistry entering treatment is not constant across the year.
The Water Supply Bureau's 2025 test results put hardness at 107 mg/L on average, 76 to 150 across the year — about 6 grains per gallon. The seasonal variability of a reservoir supply is an additional argument against an inherited point value — a single number describing a source that genuinely moves is a weaker claim than the same number describing a stable lake.
The rubber industry's legacy is chemical as well as architectural, and the older industrial frontage carries a deposit that behaves accordingly. Glass on those elevations picks up a film that bonds when damp and does not lift with plain water, so detergent and contact time are not optional there.
Akron sits on rising ground south of the lake plain and misses the worst of the lake-effect snow that loads glass in the eastern Cleveland suburbs. The winter here is cold and long but drier against the glass, which shifts the cold-season risk from snow loading toward freeze-thaw in tired glazing beads on the century-old stock.
The planned districts have now reached the age where their original sash are either long replaced or nearing the end of their service life, and telling which is which matters. A street that replaced in the nineteen-nineties carries early insulated units with different tolerances from a street that replaced last decade, and neither takes the same treatment as one that never replaced at all.
Route density and predictability, more than anything physical. Uniform planned-district stock lets a crew complete more addresses per day than mixed housing allows, and that efficiency is what sets the competitive residential rate. Glass area drives West Hill. Access equipment and contract terms set the commercial and institutional rate downtown.
The planned-district housing is about as approachable as older stock gets — modest, uniform and on level ground. The genuine caution is glazing age: a century-old sash with original putty will not survive a scraper, and on those streets it is not always obvious which houses still have them. West Hill's larger stock and the downtown institutional work should both be hired out.
OPEN COST ESTIMATOR →2025 annual mean at the East HS monitor, 80 Brittain, 4.8 km south-east of the city (EPA site 39-153-0017).
Largest air release: Huntsman Advanced Materials Americas LLC, 240 W Emerling AVE (chemicals), inside the city limits, 11,353 lb in 2024.
No one in Akron may open, try to open, or draw water from a fire hydrant without written consent from the mayor or the fire chief. The same section bars parking equipment or leaving any obstruction in front of a hydrant or within five feet of either side of it, which matters when a work van is staged at the curb.
Akron Codified Ordinances 93.53: fire hydrants · checked September 2026
Akron's nuisance code bars anyone from putting or discharging solid matter, garbage, gaseous liquids or obstructions into a catch basin, drain or the city's separate storm sewer system, and bans oil, gasoline, greasy waste or water above 110°F from any public drain where it could clog or damage it.
Akron Code 94.22: deposit of certain substances in sewers, drains and catch basins · checked September 2026
No one may make an alteration, demolition or environmental change to an Akron historic landmark or district without first obtaining a Certificate of Appropriateness, applied for through the Superintendent of Building Inspection.
Akron Codified Ordinances §31.395: alterations, demolitions, and environmental changes · checked September 2026
The I-71 corridor through Cleveland, the I-75 corridor through Toledo and Dayton, and the I-90/I-71 confluence through Cleveland deposit auto-industry and freight particulate similar to the Detroit corridors. Akron and Youngstown carry a residual industrial-era grime profile from the rubber and steel eras that older masonry housing still sheds onto adjacent glass.
Akron's Water Supply Bureau publishes hardness from its own testing: 107 mg/L on average in 2025, from 76 to 150. The supply is a reservoir on a river system rather than a lake or an aquifer, which means the raw chemistry varies across the year with rainfall and runoff — which is why the range matters as much as the average.
Residential window cleaning in Akron typically runs $8–13 per pane or $260–440 for a standard single-story exterior. Route density and predictability, more than anything physical.
Akron's drier, frost-free months are August to October, by NOAA's 1991–2020 normals for the Akron Fulton International Airport station, where May brings the most rain. The calendar on this page marks August (after the May 2 bloom) and October (after smoke season and before frost). Frost nights usually run from October 28 to April 24.
Not as the final rinse: City of Akron Water Supply publishes hardness of 76–150 mg/L, enough to spot as it dries, so finish with pure water. Water left to dry leaves mineral scale; fresh spots lift with a mild acid. Treatment starts with permanganate, powdered activated carbon, chlorine dioxide for taste and odour.
In Akron the dominant residue patterns include reservoir surface supply averaging 107 mg/l of hardness, 76 to 150 with the seasons and rubber-era industrial deposit on the older manufacturing frontage, bonded when damp. Seasonal through and through.
The planned-district housing is about as approachable as older stock gets — modest, uniform and on level ground. The genuine caution is glazing age: a century-old sash with original putty will not survive a scraper, and on those streets it is not always obvious which houses still have them. West Hill's larger stock and the downtown institutional work should both be hired out.
Company-built housing from the nineteen-tens and twenties, laid out as a planned district for the workforce. Uniform build era means uniform glazing, so a crew can predict what it will find before arriving — rare and commercially useful. Firestone Park and Highland Square have their own housing stock and glazing as well.
Just over the Ohio line