Placentia Water Hardness & Quality Report (2026)
Water Hardness
8 grains per gallon
Source
mixed
pH Level
7.9
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
378.7 mg/L
Est. Daily Cost
$0.37
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 Placentia, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Placentia | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.1 yrs | 8.5 yrs | -40% |
| Washing Machine | 8.5 yrs | 12 yrs | -29% |
| Water Heater | 10.1 yrs | 15 yrs | -33% |
Regional Water Comparison
How Placentia compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Placentia, California | 137 mg/L | 5.9 ppt | 🟠 Hard | mixed |
| Brea, California | 51.5 mg/L | 3.4 ppt | 🟢 Soft | mixed |
| Fullerton, California | 53 mg/L | 3.4 ppt | 🟢 Soft | mixed |
| Anaheim, California | 113.5 mg/L | 5.2 ppt | 🟡 Moderately Hard | mixed |
| Yorba Linda, California | 73 mg/L | 4 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Placentia compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Placentia | 137 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Placentia's Water Unique?
Local geology and source profile
Placentia, California, in northern Orange County adjacent to Anaheim and Brea — a historic Orange County citrus community (the 'City of Your Dreams,' from its 1910s promotional slogan), now a thriving suburban community with significant Korean-American and Latino populations, home of the Placentia-Yorba Linda Unified School District — draws its municipal water supply from the Orange County Groundwater Basin and MWD imports via the City of Placentia Water Division and the Orange County Water District (OCWD). Water hardness in Placentia measures 137 mg/L — classified as moderately hard.
Placentia's moderate hardness reflects the North Orange County groundwater basin's blended supply. The Orange County Groundwater Basin (the North Basin sub-area in the Anaheim–Placentia corridor — Quaternary alluvial deposits from the Santa Ana River and Coyote Creek) receives: MWD Colorado River imports percolated through OCWD spreading grounds at the Kraemer Basin and other Anaheim–Placentia percolation facilities; State Water Project Bay-Delta import blending; and local Santa Ana Mountains calcareous foothill recharge. The blended OCWD supply produces the moderate 137 mg/L at Placentia — characteristic of the north Orange County groundwater distribution zone.
At 137 mg/L, Placentia residents encounter moderate scale accumulation. Faucet aerators and showerheads develop deposits after several months — monthly cleaning with citric acid solution is practical maintenance. City of Placentia Water Division consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from the Orange County Water District (OCWD) Groundwater Basin and Metropolitan Water District (MWD) import via the City of Placentia Water Division — the Orange County North Basin Quaternary alluvial aquifer (Coyote Creek, Anaheim–Placentia area) with Colorado River and Bay-Delta import; moderately hard supply at 137 mg/L in Orange County.