Springfield Water Hardness & Quality Report (2026)
Water Hardness
6.3 grains per gallon
Source
river
pH Level
7.6
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
167.6 mg/L
Est. Daily Cost
$0.29
energy & soap waste
Source: USGS Water Quality Portal · 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 Springfield, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Springfield | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Springfield compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Springfield, Ohio | 107.5 mg/L | 4.1 ppt | 🟡 Moderately Hard | river |
| Fairborn, Ohio | 194 mg/L | 7.6 ppt | 🔴 Very Hard | river |
| Xenia, Ohio | 162 mg/L | 6.3 ppt | 🟠 Hard | river |
| Huber Heights, Ohio | 250 mg/L | 9.9 ppt | 🔴 Very Hard | river |
| Beavercreek, Ohio | 188 mg/L | 7.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Springfield compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Springfield | 107.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Springfield's Water Unique?
Local geology and source profile
Springfield, Ohio, the Clark County seat on the Mad River — a historic Ohio manufacturing and agricultural city, once a center of agricultural machinery production (International Harvester Springfield Works) and currently undergoing economic revitalization — draws its municipal water supply from the Mad River via the Springfield Municipal Water Plant, treating Mad River water for the Springfield–Clark County area. Water hardness in Springfield measures 107.5 mg/L — classified as moderately hard.
Springfield's moderate hardness reflects the Mad River's Ohio dolostone watershed. The Mad River above Springfield drains: Clark County with its Silurian Niagaran Dolomite and Ordovician Cincinnatian Group (Silurian and Ordovician carbonate platform formations of southwest Ohio and the Dayton area — reactive dolomite contributing dissolved calcium and magnesium); the Quaternary calcareous glacial till of the Miami–Mad River valley (Wisconsin Age Huron–Erie Lobe glacial till — calcareous limestone-rich till from the Great Lakes limestone terrain); and Mad River glaciofluvial outwash gravels (calcareous). The Ohio carbonate platform dolostone and calcareous glacial terrain together produce the moderate 107.5 mg/L at Springfield.
At 107.5 mg/L, Springfield residents encounter moderate scale accumulation. Faucet aerators and showerheads develop deposits after several months — monthly cleaning with citric acid solution is practical maintenance. Springfield Municipal Water Plant consistently delivers water meeting all Ohio EPA and federal EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Mad River via the Springfield Municipal Water Plant — the Mad River watershed draining the Clark County Silurian Niagaran Dolomite and Ordovician Cincinnati Group (calcareous carbonates of the Dayton–Springfield Ohio dolostone belt); moderately hard supply at 107.5 mg/L in Clark County.