Ramona Water Hardness & Quality Report (2026)
Water Hardness
6.9 grains per gallon
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
310.2 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 Ramona, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Ramona | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 9.2 yrs | 12 yrs | -23% |
| Water Heater | 10.9 yrs | 15 yrs | -27% |
Regional Water Comparison
How Ramona compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ramona, California | 118.5 mg/L | 5.3 ppt | 🟡 Moderately Hard | mixed |
| Poway, California | 48 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Lakeside, California | 94.5 mg/L | 4.6 ppt | 🟡 Moderately Hard | mixed |
| Winter Gardens, California | 189 mg/L | 7.3 ppt | 🔴 Very Hard | mixed |
| Santee, California | 111.5 mg/L | 5.1 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Ramona compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ramona | 118.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Ramona home
Shop water softeners on Amazon.com →
What Makes Ramona's Water Unique?
Local geology and source profile
Ramona, California, in San Diego County — an unincorporated San Diego County community in the San Pasqual Valley and Ramona Valley, the heart of San Diego County's emerging wine country and equestrian communities east of Escondido — receives its municipal water from the Ramona Municipal Water District (RMWD), which draws from Sutherland Reservoir and the Ramona Reservoir in the San Vicente watershed, supplemented by Colorado River Aqueduct (CRA) import through the San Diego County Water Authority (SDCWA).
The moderately hard 118.5 mg/L hardness and TDS of 310.2 mg/L reflect Ramona's blended local and CRA import supply character. The Sutherland Reservoir drains the Palomar Mountain and Cuyamaca Mountains zone (Cretaceous granodiorite of the Peninsular Ranges Batholith — very soft), while the CRA Colorado River Aqueduct import (moderately hard to hard, 200-350 mg/L) makes up a significant proportion of the treated supply. The blend of soft Peninsular Ranges granite runoff with harder CRA import produces the moderately hard 118.5 mg/L outcome — typical of the inland north San Diego County supply zones.
At 118.5 mg/L, Ramona's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 5.3 ppt warrants a certified drinking water filter — MCAS Miramar, Camp Pendleton (US Marine Corps — major AFFF user north of San Diego), and the San Diego County military aviation complex contribute to Ramona's PFAS background.
Geology & Source: Ramona in San Diego County draws from the Ramona Municipal Water District on Sutherland Reservoir and Ramona Reservoir (San Vicente watershed) plus Colorado River Aqueduct import via SDCWA — the supply blends local Cretaceous Peninsular Ranges granodiorite runoff with CRA import — Peninsular Ranges granodiorite and Colorado River import blend produces moderately hard water at 118.5 mg/L with TDS 310 mg/L in this San Diego County community.