Sewell Water Hardness & Quality Report (2026)
Water Hardness
9 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
376.2 mg/L
Est. Daily Cost
$0.41
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 Sewell, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Sewell | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.5 yrs | 8.5 yrs | -47% |
| Washing Machine | 7.9 yrs | 12 yrs | -34% |
| Water Heater | 9.5 yrs | 15 yrs | -37% |
Regional Water Comparison
How Sewell compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Sewell, New Jersey | 153.5 mg/L | 11.6 ppt | 🟠 Hard | reservoir |
| Glassboro, New Jersey | 180.5 mg/L | 13.1 ppt | 🔴 Very Hard | reservoir |
| Whitman, Pennsylvania | 132 mg/L | 6.7 ppt | 🟠 Hard | reservoir |
| Lower Moyamensing, Pennsylvania | 202.5 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
| Lindenwold, New Jersey | 74.5 mg/L | 7.1 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Sewell compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sewell | 153.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Sewell's Water Unique?
Local geology and source profile
Sewell, New Jersey, an unincorporated community in Mantua Township, Gloucester County — a major south Jersey suburban community in the rapidly growing Philadelphia suburban corridor, a primarily residential community along the Route 322 corridor in Gloucester County, part of the broader southwest New Jersey Gloucester County suburban growth zone adjacent to Deptford Township, and a diverse Gloucester County community in the Philadelphia–South Jersey metro area — draws its municipal water supply from the Wenonah-Mount Laurel Aquifer via the Gloucester County MUA or local water authority. Water hardness in Sewell measures 153.5 mg/L — classified as moderately hard.
Sewell's moderate hardness reflects the southern New Jersey Coastal Plain's calcareous-moderate deep Cretaceous aquifer characteristics. The Wenonah-Mount Laurel Aquifer (800-foot sand) at Gloucester County draws from the Cretaceous Wenonah and Mount Laurel Formations (calcareous-moderate glauconitic marine sand with some calcium carbonate cement) and the Cretaceous Englishtown Formation (calcareous-moderate fine sand). The southern NJ Coastal Plain aquifer system in Gloucester County with limited softening produces the moderate 153.5 mg/L.
At 153.5 mg/L, Sewell residents encounter moderate-to-hard scale accumulation. Monthly cleaning with citric acid solution is recommended. Gloucester County MUA consistently delivers water meeting all New Jersey DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Atlantic City 800-foot sand aquifer (Wenonah-Mount Laurel Aquifer) via the Gloucester County Municipal Utilities Authority or Middlesex Water — the Gloucester County southern New Jersey Coastal Plain (Cretaceous Wenonah-Mount Laurel Formation calcareous-moderate sand — the southern NJ Coastal Plain deep aquifer system; limited softening in Sewell); moderately hard supply at 153.5 mg/L in Gloucester County.