Florence-Graham Water Hardness & Quality Report (2026)
Water Hardness
5.3 grains per gallon
Source
mixed
pH Level
7.6
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
221.3 mg/L
Est. Daily Cost
$0.24
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 Florence-Graham, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Florence-Graham | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 10.2 yrs | 12 yrs | -15% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Florence-Graham compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Florence-Graham, California | 91 mg/L | 4.5 ppt | 🟡 Moderately Hard | mixed |
| Walnut Park, California | 154.5 mg/L | 6.4 ppt | 🟠 Hard | mixed |
| Huntington Park, California | 36.5 mg/L | 2.9 ppt | 🟢 Soft | mixed |
| South Gate, California | 47 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Lynwood, California | 56.5 mg/L | 3.5 ppt | 🟢 Soft | mixed |
National Benchmark
How Florence-Graham compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Florence-Graham | 91 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Florence-Graham home
Shop water softeners on Amazon.com →
What Makes Florence-Graham's Water Unique?
Local geology and source profile
Florence-Graham, California — an unincorporated community in south Los Angeles County adjacent to South Central Los Angeles, one of the most densely populated unincorporated areas in California — draws its municipal water supply from the Central Basin Groundwater Basin and Metropolitan Water District (MWD) imported water via the Central Basin Municipal Water District (CBMWD) serving unincorporated south Los Angeles County through the Los Angeles County Department of Public Works distribution. Water hardness in Florence-Graham measures 91 mg/L — classified as moderately soft.
Florence-Graham's moderately soft supply reflects the Central Basin's managed groundwater characteristics in the south Los Angeles County corridor. The Central Basin Groundwater Basin in the Los Angeles Coastal Plain south of downtown is extensively managed by CBMWD — the basin is recharged with soft Metropolitan Water District Colorado River Aqueduct and State Water Project imports through spreading operations. The Florence-Graham area sits in the Los Angeles County unincorporated zone southeast of downtown Los Angeles, near the Alameda Corridor freight rail line, where CBMWD distributes blended MWD imported and local groundwater. The moderate 91 mg/L reflects the Central Basin's managed recharge maintaining softer conditions than the raw coastal plain geology would naturally produce.
With hardness at 91 mg/L, Florence-Graham residents enjoy moderately soft water with minimal scale challenges. Los Angeles County Department of Public Works and Central Basin Municipal Water District consistently deliver water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from Central Basin (Los Angeles Coastal Plain) Groundwater Basin and Metropolitan Water District (MWD) imports via the Central Basin Municipal Water District (CBMWD) — the south-central Los Angeles unincorporated Florence-Graham area near the Alameda Corridor; moderately soft supply at 91 mg/L — reflecting the Central Basin managed recharge with MWD soft imports.