Hammond Water Hardness & Quality Report (2026)
Water Hardness
11 grains per gallon
Source
river
pH Level
8.1
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
376.2 mg/L
Est. Daily Cost
$0.50
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 Hammond, your appliances are currently losing 25% efficiency due to mineral buildup.
| Appliance | In Hammond | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.4 yrs | 8.5 yrs | -60% |
| Washing Machine | 6.7 yrs | 12 yrs | -44% |
| Water Heater | 8.1 yrs | 15 yrs | -46% |
Regional Water Comparison
How Hammond compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hammond, Indiana | 187.5 mg/L | 5.8 ppt | 🔴 Very Hard | river |
| Munster, Indiana | 208 mg/L | 6.5 ppt | 🔴 Very Hard | river |
| Lansing, Illinois | 282.5 mg/L | 9.8 ppt | 🔴 Very Hard | river |
| Calumet City, Illinois | 269.5 mg/L | 9.4 ppt | 🔴 Very Hard | river |
| Highland, Indiana | 206 mg/L | 6.5 ppt | 🔴 Very Hard | river |
National Benchmark
How Hammond compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hammond | 187.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Hammond's Water Unique?
Local geology and source profile
Hammond, Indiana, in Lake County at the southeastern tip of Lake Michigan adjacent to Chicago's southeast side, draws its municipal water supply directly from Lake Michigan via the Hammond Water Utility, operating a Lake Michigan intake on the Indiana lakefront in the southeastern Chicago metropolitan area. Hammond is one of the industrial cities of the Calumet region, historically associated with steel manufacturing and Chicago's far southeast industrial corridor. Water hardness in Hammond measures 187.5 mg/L — classified as hard.
Hammond's hard supply on Lake Michigan source reflects the Lake County Indiana Lake Michigan distribution network's characteristics. Lake Michigan water in the southeast Chicago–Calumet region is treated locally and distributed through the Hammond Utility infrastructure — a distribution system reflecting Hammond's historic industrial character, with older cast-iron mains serving the densely built Calumet region residential and industrial areas. The moderately high 187.5 mg/L reading is consistent with the southeast Chicago metropolitan Lake Michigan zone (Gary, Indiana: 156.5 mg/L), where distribution infrastructure vintage and local groundwater mixing patterns in the glacially deposited Lake County Indiana terrain contribute to moderate-to-hard finished hardness above the Lake Michigan source baseline.
At 187.5 mg/L, Hammond residents face regular hard water challenges. Scale deposits form on faucet aerators, showerheads, and appliances within weeks — monthly descaling with citric acid solution is standard maintenance. Hammond Water Utility consistently delivers water meeting all Indiana DWE and EPA Safe Drinking Water Act requirements.
Geology & Source: Lake supply from Lake Michigan via the Hammond Water Utility direct Lake Michigan intake in the southeast Chicago lakefront — the Lake County Indiana Lake Michigan shoreline intake; hard supply at 187.5 mg/L in Lake County, Indiana — consistent with the southeast Chicago metropolitan Lake Michigan distribution zone.