Ceres Water Hardness & Quality Report (2026)
Water Hardness
2.5 grains per gallon
Source
mixed
pH Level
7.2
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
88.1 mg/L
Est. Daily Cost
$0.11
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 Ceres, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In Ceres | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.2 yrs | 8.5 yrs | -4% |
| Washing Machine | 12 yrs | 12 yrs | — |
| Water Heater | 13.9 yrs | 15 yrs | -7% |
Regional Water Comparison
How Ceres compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ceres, California | 42 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Modesto, California | 177.5 mg/L | 7.1 ppt | 🟠 Hard | mixed |
| Riverbank, California | 79.5 mg/L | 4.3 ppt | 🟡 Moderately Hard | mixed |
| Turlock, California | 124 mg/L | 5.6 ppt | 🟠 Hard | mixed |
| Salida, California | 134.5 mg/L | 5.9 ppt | 🟠 Hard | mixed |
National Benchmark
How Ceres compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ceres | 42 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Ceres's Water Unique?
Local geology and source profile
Ceres, California, in Stanislaus County in the Central Valley — a major Central Valley agricultural community adjacent to Modesto, a diverse working-class community with a large Mexican-American and Punjabi-American community, known for Blue Diamond Growers and Del Monte Foods processing operations in the Stanislaus County agricultural belt — draws its municipal water supply from the Tuolumne River (Turlock Irrigation District import) and local groundwater via the City of Ceres Water Division. Water hardness in Ceres measures 42 mg/L — classified as very soft.
Ceres' very soft supply — dramatically soft for a Central Valley community — reflects the dominance of the Tuolumne River Sierra Nevada snowmelt supply in the Ceres water blend. The Turlock Irrigation District (TID) delivers Tuolumne River water (originating from the Hetch Hetchy Reservoir and Don Pedro Reservoir in the Sierra Nevada — soft Yosemite Granodiorite and El Capitan Granite watershed, calcium-poor) to the Ceres area through surface water channels and percolation spreading. The very soft Tuolumne River Sierra Nevada supply, blended with local Modesto Sub-basin groundwater, produces the very soft 42 mg/L — far below most Central Valley communities' harder groundwater supplies.
With hardness at 42 mg/L, Ceres residents enjoy very soft water for a Central Valley community. City of Ceres Water Division consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Modesto Sub-basin (San Joaquin Valley Groundwater Basin) and Turlock Irrigation District (TID) Tuolumne River import via the City of Ceres Water Division — the Stanislaus County Central Valley San Joaquin Valley (Sierra Nevada granitic alluvial fan + Tuolumne River soft Cascade snowmelt import); very soft supply at 42 mg/L — reflecting the Tuolumne River soft supply dominance in the Ceres zone.