Sienna Plantation Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

mixed

pH Level

8.1

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

348 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

very hard180+ mg/LVery Hard · est.

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	4.7 yrs	8.5 yrs	-45%
Washing Machine	6.6 yrs	12 yrs	-45%
Water Heater	8.3 yrs	15 yrs	-45%

Regional Water Comparison

How Sienna Plantation compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Sienna Plantation, Texas	≈ 180+ mg/L	11 ppt	🔴 Very Hard	mixed
Fresno, Texas	≈ 180+ mg/L	0 ppt	🔴 Very Hard	reservoir
Missouri City, Texas	≈ 120–179 mg/L	0 ppt	🟠 Hard	groundwater
Stafford, Texas	≈ 180+ mg/L	209.1 ppt	🔴 Very Hard	reservoir
Greatwood, Texas	≈ 60–120 mg/L	10.4 ppt	🟡 Moderately Hard	mixed

National Benchmark

How Sienna Plantation compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Sienna Plantation	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Sienna Plantation's Water Unique?

Local geology and source profile

Source: MixedTDS: 348 mg/LpH: 8.1

Sienna Plantation Management District, also known as Sienna Plantation MUD, provides drinking water to the Sienna Plantation community in Rosenberg, Texas. This utility draws from a mixed water supply, utilizing groundwater from the Evangeline aquifer and surface water obtained from the City of Rosenberg's supply. The district's operations are managed from their board office at 6420 Reading Road, Rosenberg, Texas, 77471, and they can be contacted at (832) 490-1635.

The Evangeline Formation, a sedimentary aquifer dating back to the Tertiary period, forms the basis of the groundwater supply. This extensive aquifer is composed of layers of sand, silt, and clay that have accumulated over millions of years. As water filters through these subsurface strata and the overlying Quaternary alluvial deposits common in south-central Texas, it dissolves significant amounts of calcium and magnesium minerals. This natural geological process contributes to the very hard water characteristic of the region.

Homeowners in Sienna Plantation will likely notice the effects of this very hard water on their appliances and plumbing. Scale buildup is a common issue, often accumulating in water heaters, dishwashers, and washing machines, which can decrease their efficiency and shorten their operational lifespan. You'll also find that soaps and detergents don't lather as effectively, requiring more product for cleaning tasks. Installing a water softener is highly recommended to protect your home's water-using appliances, reduce long-term maintenance costs, and improve the overall quality of your household water.

Geology & Source: Evangeline aquifer (Tertiary); sand, silt, clay deposits; high calcium and magnesium content due to percolation through Quaternary alluvial deposits and Tertiary sediments; very hard water

Other Texas Water Reports

Fresno

≈ 180+ mg/L

🔴 Very Hard

Missouri City

≈ 120–179 mg/L

🟠 Hard

Stafford

≈ 180+ mg/L

🔴 Very Hard

Greatwood

≈ 60–120 mg/L

🟡 Moderately Hard

Report an Issue

Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Sienna Plantation's water safe to drink?

Yes. Sienna Plantation's water meets all federal safety standards. The hardness is ≈ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Sienna Plantation?

At ≈ 180+ mg/L (Very Hard), Sienna Plantation's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 45%.

How does Sienna Plantation compare to the USA average?

The USA national average is 151 mg/L. Sienna Plantation (≈ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Sienna Plantation is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.