Sienna Plantation Water Hardness & Quality Report (2026)
Water Hardness
21.8 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1115 mg/L
Est. Daily Cost
$1.00
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 Sienna Plantation, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Sienna Plantation | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Sienna Plantation compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Sienna Plantation, Texas | 373.5 mg/L | 11 ppt | 🔴 Very Hard | mixed |
| Fresno, Texas | 361.5 mg/L | 10.7 ppt | 🔴 Very Hard | mixed |
| Missouri City, Texas | 183.5 mg/L | 7 ppt | 🔴 Very Hard | mixed |
| Stafford, Texas | 407.5 mg/L | 11.7 ppt | 🔴 Very Hard | mixed |
| Sugar Land, Texas | 155 mg/L | 6.4 ppt | 🟠 Hard | mixed |
National Benchmark
How Sienna Plantation compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sienna Plantation | 373.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Sienna Plantation's Water Unique?
Local geology and source profile
Sienna Plantation, Texas, in Fort Bend County — a Fort Bend County master-planned community adjacent to Missouri City and Sugar Land in the southwest Houston metro — receives its water from the Fort Bend County Municipal Utility District, drawing from the Brazos River or Gulf Coast Aquifer (Fort Bend County) through the southwest Houston metro distribution.
The extremely hard 373.5 mg/L hardness and very high TDS of 1115 mg/L make Sienna Plantation one of the hardest water cities in this dataset — reflecting the Fort Bend County Gulf Coast aquifer's Pleistocene Beaumont Clay and Tertiary evaporitic formations that accumulate extraordinary dissolved mineral content, typical of the deep Gulf Coast aquifer communities in the Houston metro region. The Gulf Coast Aquifer at Fort Bend County — Pleistocene Beaumont Clay (calcareous-evaporitic — primary hardness and TDS contributor), Tertiary Chicot Formation (calcareous-evaporitic — secondary contributor), and Tertiary Jasper Formation (evaporitic — TDS contributor).
At 373.5 mg/L with TDS 1115, Sienna Plantation's water is extremely hard. A water softener is essential to prevent rapid and severe scale damage to all appliances and plumbing. A reverse osmosis system is strongly required for drinking water due to the very high TDS exceeding secondary standards. The PFAS level of 11.0 ppt warrants a certified reverse osmosis drinking water filter — the Fort Bend County southwest Houston industrial corridor and Ellington Field (Harris County — AFFF, nearby) contribute to Sienna Plantation's very elevated readings.
Geology & Source: Sienna Plantation in Fort Bend County draws from the Fort Bend County Municipal Utility District on the Brazos River or local Gulf Coast Aquifer (Fort Bend County, southeast Texas) — the Gulf Coast Aquifer at Fort Bend County is developed in Pleistocene Beaumont Clay (evaporitic) and Tertiary Fleming Formation (calcareous-evaporitic) — Texas Fort Bend County Gulf Coast Aquifer Pleistocene evaporitic produces extremely hard water at 373.5 mg/L with TDS 1115 mg/L.