Owings Mills Water Hardness & Quality Report (2026)
Water Hardness
10.3 grains per gallon
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
432.6 mg/L
Est. Daily Cost
$0.47
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 Owings Mills, your appliances are currently losing 23% efficiency due to mineral buildup.
| Appliance | In Owings Mills | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.8 yrs | 8.5 yrs | -55% |
| Washing Machine | 7.1 yrs | 12 yrs | -41% |
| Water Heater | 8.6 yrs | 15 yrs | -43% |
Regional Water Comparison
How Owings Mills compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Owings Mills, Maryland | 176 mg/L | 9.6 ppt | 🟠 Hard | reservoir |
| Randallstown, Maryland | 136.5 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| Reisterstown, Maryland | 144.5 mg/L | 7.8 ppt | 🟠 Hard | reservoir |
| Milford Mill, Maryland | 190 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
| Pikesville, Maryland | 85 mg/L | 4.4 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Owings Mills compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Owings Mills | 176 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Owings Mills's Water Unique?
Local geology and source profile
Owings Mills, Maryland, an unincorporated community in Baltimore County — a major northwest Baltimore County commercial and residential hub (Owings Mills is one of the most significant commercial centers in Baltimore County — a northwest suburban community at the I-795 and MD-140 junction, home of the Metro Centre at Owings Mills (a major mixed-use transit-oriented development around the Baltimore Metro Subway's Owings Mills terminus — one of the most significant suburban redevelopment projects in Maryland), the Maryland Public Television headquarters (the PBS member station for Maryland), and several major corporate and financial services office campuses), a diverse Baltimore County community with a significant Jewish-American, African-American, and suburban professional population (Owings Mills has seen significant demographic diversification since the 1990s, particularly with African-American middle-class migration from inner Baltimore), and one of northwest Baltimore County's most significant commercial and transit-served communities — draws its municipal water supply via the Baltimore City DPW. Water hardness in Owings Mills measures 176 mg/L — classified as hard.
Owings Mills's hard supply reflects the northwest Baltimore County distribution zone's characteristics. The BCDPW distributes Liberty and Prettyboy Reservoir supply through the northwest Baltimore County Owings Mills zone (primarily 1980s–2000s suburban development mains), producing the hard 176 mg/L.
At 176 mg/L, Owings Mills residents face regular hard water challenges. Monthly descaling and water softeners are recommended. Baltimore City DPW consistently delivers water meeting all Maryland MDE and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Prettyboy and Liberty Reservoirs (Gunpowder and Patapsco watersheds) via the Baltimore City DPW — the Baltimore County northwest suburban Owings Mills corridor (Precambrian calcareous-poor Maryland Piedmont gneiss — the BCDPW northwest Baltimore County distribution to Owings Mills zone; limited softening); hard supply at 176 mg/L in Baltimore County.