Ripon Water Hardness & Quality Report (2026)
Water Hardness
4.3 grains per gallon
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
169.9 mg/L
Est. Daily Cost
$0.19
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 Ripon, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Ripon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.2 yrs | 8.5 yrs | -15% |
| Washing Machine | 10.9 yrs | 12 yrs | -9% |
| Water Heater | 12.7 yrs | 15 yrs | -15% |
Regional Water Comparison
How Ripon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ripon, California | 73 mg/L | 4.1 ppt | 🟡 Moderately Hard | mixed |
| Salida, California | 134.5 mg/L | 5.9 ppt | 🟠 Hard | mixed |
| Manteca, California | 103.5 mg/L | 5 ppt | 🟡 Moderately Hard | mixed |
| Modesto, California | 177.5 mg/L | 7.1 ppt | 🟠 Hard | mixed |
| Lathrop, California | 130.5 mg/L | 5.8 ppt | 🟠 Hard | mixed |
National Benchmark
How Ripon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ripon | 73 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Ripon's Water Unique?
Local geology and source profile
Ripon, California, in San Joaquin County — a San Joaquin County city adjacent to Manteca and Modesto in the central San Joaquin Valley — receives its water from the Ripon Community Services District, drawing from local San Joaquin Valley groundwater and treated Central Valley Project imports (Delta-Mendota Canal) through the central California distribution.
The moderately soft 73 mg/L hardness and TDS of 169.9 mg/L reflect the central San Joaquin Valley mixed supply's moderate character — blending soft Sierra Nevada snowmelt imports with slightly more mineralized local San Joaquin Valley alluvial groundwater. The San Joaquin Valley alluvial aquifer at San Joaquin County is developed in Quaternary San Joaquin Valley alluvium (calcareous, derived from Sierra Nevada), and the Sierra Nevada import via the Delta-Mendota Canal contributes soft snowmelt from Cretaceous Sierra Nevada Batholith (granodiorite — insoluble). The blended supply produces the moderately soft central Valley character.
At 73 mg/L, Ripon's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 4.1 ppt warrants a certified drinking water filter — the San Joaquin County central California agricultural-industrial corridor and the San Joaquin Valley PFAS background from Castle Air Force Base (Merced County — AFFF) and the central Valley industrial complex contribute to Ripon's readings.
Geology & Source: Ripon in San Joaquin County draws from the Ripon Community Services District on San Joaquin Valley groundwater and Delta-Mendota Canal (San Joaquin County, central California) — the Valley water is a blend of Sierra Nevada snowmelt and San Joaquin Valley alluvial aquifer — California San Joaquin County Central Valley mixed supply produces moderately soft water at 73 mg/L with TDS 169.9 mg/L.