Bay Point Water Hardness & Quality Report (2026)
Water Hardness
7 grains per gallon
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
319.2 mg/L
Est. Daily Cost
$0.32
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 Bay Point, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Bay Point | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 9.2 yrs | 12 yrs | -23% |
| Water Heater | 10.8 yrs | 15 yrs | -28% |
Regional Water Comparison
How Bay Point compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Bay Point, California | 119.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | mixed |
| Pittsburg, California | 128 mg/L | 5.7 ppt | 🟠 Hard | mixed |
| Concord, California | 97 mg/L | 4.8 ppt | 🟡 Moderately Hard | mixed |
| Pleasant Hill, California | 144 mg/L | 6.2 ppt | 🟠 Hard | mixed |
| Antioch, California | 133.5 mg/L | 5.9 ppt | 🟠 Hard | mixed |
National Benchmark
How Bay Point compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Bay Point | 119.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Bay Point's Water Unique?
Local geology and source profile
Bay Point, California, in Contra Costa County — an unincorporated East Bay community on Suisun Bay adjacent to Pittsburg and near the mouth of the Sacramento River Delta, historically known as West Pittsburg, with deep industrial roots from the Columbia Steel (later US Steel Pittsburg Works) corridor — receives its municipal water from the Contra Costa Water District (CCWD), which draws from the Sacramento-San Joaquin Delta via the Old River/Rock Slough intakes and stores it in the Los Vaqueros Reservoir in the Mt. Diablo foothills. CCWD is one of the Bay Area's largest water suppliers.
The moderately hard 119.5 mg/L hardness and TDS of 319.2 mg/L reflect the Sacramento-San Joaquin Delta supply's complex, blended character. The Sacramento River Delta supply integrates drainage from across northern California — the Sacramento River (draining the northern Sierra Nevada and Cascades — soft volcanic and granitic terrain), the San Joaquin River (draining the central Sierra Nevada and Central Valley — harder agricultural drainage), and Central Valley tributary flow. This blend of soft Sierra Nevada water with harder, higher-mineral Central Valley agricultural drainage and San Joaquin Valley saline groundwater influence produces moderately hard finished water. CCWD's Los Vaqueros Reservoir provides blending, storage, and water quality improvement for the East Bay Contra Costa supply.
At 119.5 mg/L, Bay Point's water is moderately hard — consistent with the Contra Costa County supply profile. Scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is appropriate. The PFAS level of 5.5 ppt is moderate for the East Bay — Bay Point's industrial legacy (the former US Steel Pittsburg Works is among the most significant legacy industrial sites on San Francisco Bay), the Suisun Bay port and industrial corridor, and the Sacramento-San Joaquin Delta's agricultural and industrial PFAS input all contribute to the Contra Costa Water District supply's PFAS background.
Geology & Source: Bay Point in Contra Costa County is served by the Contra Costa Water District (CCWD) drawing from the Sacramento-San Joaquin Delta and Los Vaqueros Reservoir — the Delta supply integrates Central Valley and Sierra Nevada watershed drainage; Los Vaqueros accesses Central Valley drainages — Delta-Sierra mixed supply produces moderately hard water at 119.5 mg/L with TDS 319 mg/L in this east Contra Costa County Bay Area community.