Glenmont Water Hardness & Quality Report (2026)
Water Hardness
8.3 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
303.4 mg/L
Est. Daily Cost
$0.38
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 Glenmont, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Glenmont | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.9 yrs | 8.5 yrs | -42% |
| Washing Machine | 8.3 yrs | 12 yrs | -31% |
| Water Heater | 9.9 yrs | 15 yrs | -34% |
Regional Water Comparison
How Glenmont compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Glenmont, Maryland | 142.5 mg/L | 7.7 ppt | 🟠 Hard | reservoir |
| Wheaton, Maryland | 95 mg/L | 5 ppt | 🟡 Moderately Hard | reservoir |
| Aspen Hill, Maryland | 95.5 mg/L | 5.1 ppt | 🟡 Moderately Hard | reservoir |
| Kemp Mill, Maryland | 183 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
| Colesville, Maryland | 182 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Glenmont compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Glenmont | 142.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Glenmont's Water Unique?
Local geology and source profile
Glenmont, Maryland, in Montgomery County — a Montgomery County community adjacent to Silver Spring and Wheaton in the Washington DC suburbs — receives its water from the Washington Suburban Sanitary Commission (WSSC), drawing from the Patuxent River or Potomac River (Montgomery County) through the DC suburban Maryland distribution.
The moderately hard 142.5 mg/L hardness and TDS of 303.4 mg/L reflect the central Maryland Montgomery County WSSC supply's moderate calcareous character — consistent with the Washington DC metro communities drawing from the Potomac-Patuxent watershed (compare Clarksburg MD: 141 mg/L) reflecting the Maryland Piedmont calcareous metasediment geology. The Potomac-Patuxent watershed at Montgomery County — Precambrian Wissahickon Schist (insoluble — dilutant), Cambrian calcareous metasediments (calcareous — primary hardness contributor), and Quaternary Piedmont alluvium (slightly calcareous — TDS contributor).
At 142.5 mg/L, Glenmont's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 7.7 ppt warrants a certified drinking water filter — the Montgomery County Washington DC suburban industrial corridor and Andrews Air Force Base (Prince George's County — AFFF) contribute to Glenmont's elevated readings.
Geology & Source: Glenmont in Montgomery County draws from the Washington Suburban Sanitary Commission on the Potomac River (Montgomery County, central Maryland) — the Potomac watershed drains the Maryland Piedmont (Precambrian Wissahickon Schist — insoluble) and Cambrian calcareous metasediments — Maryland Montgomery County Potomac River Piedmont Precambrian-Cambrian calcareous supply produces moderately hard water at 142.5 mg/L with TDS 303.4 mg/L.