Delhi Water Hardness & Quality Report (2026)
Water Hardness
8.9 grains per gallon
Source
mixed
pH Level
8
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
438.4 mg/L
Est. Daily Cost
$0.40
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 Delhi, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Delhi | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.6 yrs | 8.5 yrs | -46% |
| Washing Machine | 8 yrs | 12 yrs | -33% |
| Water Heater | 9.5 yrs | 15 yrs | -37% |
Regional Water Comparison
How Delhi compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Delhi, California | 151.5 mg/L | 6.4 ppt | 🟠 Hard | mixed |
| Livingston, California | 94 mg/L | 4.7 ppt | 🟡 Moderately Hard | mixed |
| Turlock, California | 124 mg/L | 5.6 ppt | 🟠 Hard | mixed |
| Winton, California | 185.5 mg/L | 7.4 ppt | 🔴 Very Hard | mixed |
| Atwater, California | 33.5 mg/L | 2.9 ppt | 🟢 Soft | mixed |
National Benchmark
How Delhi compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Delhi | 151.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Delhi's Water Unique?
Local geology and source profile
Delhi, California, in Merced County — a Merced County unincorporated community adjacent to Merced and Turlock on the west San Joaquin Valley floor — receives its water from the Delhi Community Services District, drawing from local wells through the central California San Joaquin Valley distribution.
The hard 151.5 mg/L hardness and TDS of 438.4 mg/L reflect the Merced County San Joaquin Valley supply's hard calcareous character — the Eocene Tulare Formation and Pleistocene San Joaquin River alluvium are calcareous formations in the San Joaquin Valley, and the valley's agricultural water cycling concentrates dissolved mineral content in Delhi's well field zone (compare Merced CA: 147/426 in Merced County comparable; Turlock CA: 155/451 in Stanislaus County comparable; Delhi consistent hard from the same Merced County San Joaquin River Eocene calcareous supply). The Local wells — Eocene Tulare Formation (calcareous — primary hardness contributor), Pleistocene San Joaquin River alluvium (calcareous — secondary contributor), and Quaternary San Joaquin Valley evaporation flat (calcareous — TDS contributor).
At 151.5 mg/L with TDS 438, Delhi's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 6.4 ppt warrants a certified drinking water filter. Review the Delhi Community Services District's annual water quality report.
Geology & Source: Delhi in Merced County draws from the Delhi Community Services on the San Joaquin River and local wells (Merced County, San Joaquin Valley California) — the San Joaquin Valley draws from Eocene Tulare Formation (calcareous) and Pleistocene San Joaquin River alluvium (calcareous) — California Merced County San Joaquin River Eocene calcareous supply produces hard water at 151.5 mg/L with TDS 438.4 mg/L.