Crofton Water Hardness & Quality Report (2026)
Water Hardness
5.1 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
139.1 mg/L
Est. Daily Cost
$0.23
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 Crofton, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Crofton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.7 yrs | 8.5 yrs | -21% |
| Washing Machine | 10.4 yrs | 12 yrs | -13% |
| Water Heater | 12.1 yrs | 15 yrs | -19% |
Regional Water Comparison
How Crofton compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Crofton, Maryland | 87.5 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Bowie, Maryland | 172 mg/L | 9.4 ppt | 🟠 Hard | reservoir |
| Odenton, Maryland | 159 mg/L | 8.6 ppt | 🟠 Hard | reservoir |
| Glenn Dale, Maryland | 143 mg/L | 7.7 ppt | 🟠 Hard | reservoir |
| Severn, Maryland | 143 mg/L | 7.7 ppt | 🟠 Hard | reservoir |
National Benchmark
How Crofton compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Crofton | 87.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Crofton's Water Unique?
Local geology and source profile
Crofton, Maryland, in Anne Arundel County — a major north Maryland suburban community (Crofton is a significant Anne Arundel County unincorporated community — a north Maryland suburb situated between Annapolis and the DC–Baltimore corridor; Crofton is one of the most completely planned residential communities in Maryland (Crofton was developed as a master-planned community beginning in 1963, with the deliberate provision of community amenities including the Crofton Country Club, parks, and a planned commercial center; Crofton's master plan is one of the more successful mid-20th century residential community planning exercises in the Washington–Baltimore corridor)), a diverse Anne Arundel County community with a primarily government professional, military, and suburban family population, adjacent to Bowie and Odenton in the north Anne Arundel County Washington–Baltimore corridor, home of the Crofton community parks and golf course, and a planned suburban community shaped by its deliberate development — draws its municipal water supply via the Anne Arundel County Water Authority. Water hardness in Crofton measures 87.5 mg/L — classified as moderately soft.
Crofton's moderate softness reflects the north Maryland Anne Arundel County Patuxent watershed's calcareous-poor crystalline geology. The Patuxent River (Triadelphia Reservoir) drains the Precambrian Maryland Piedmont gneiss (calcareous-poor). Anne Arundel County Water treatment produces the moderately soft 87.5 mg/L.
With hardness at 87.5 mg/L, Crofton residents enjoy moderately soft water. Anne Arundel County Water Authority consistently delivers water meeting all Maryland MDE and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Patuxent River (Triadelphia Reservoir) via the Anne Arundel County Water Authority — the Crofton corridor (Precambrian calcareous-poor Piedmont Maryland gneiss — the calcareous-poor Anne Arundel County Patuxent crystalline watershed; effective treatment); moderately soft supply at 87.5 mg/L in Anne Arundel County.