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Sugar Land Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.9

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

352.9 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · 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 Sugar Land, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn Sugar LandSoft Water CityEfficiency Loss
Kettle
6.8 yrs
8.5 yrs-20%
Washing Machine
9.6 yrs
12 yrs-20%
Water Heater
12 yrs
15 yrs-20%

Regional Water Comparison

How Sugar Land compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Sugar Land, Texas≈ 120–179 mg/L1894.2 ppt🟠 Hardreservoir
New Territory, Texas≈ 120–179 mg/L7.6 ppt🟠 Hardmixed
Four Corners, Texas≈ 120–179 mg/L9.6 ppt🟠 Hardmixed
Stafford, Texas≈ 180+ mg/L209.1 ppt🔴 Very Hardreservoir
Greatwood, Texas≈ 60–120 mg/L10.4 ppt🟡 Moderately Hardmixed

National Benchmark

How Sugar Land compares to the USA average

BenchmarkHardnessAppliance Risk
Sugar Land≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Sugar Land's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 352.9 mg/LpH: 7.9

The City of Sugar Land Public Works Department manages the water utility serving Sugar Land in Fort Bend County, Texas, with a population of about 110,000 across areas including Greatwood, Main System, New Territory, and River Park. Primary supply comes from twelve groundwater plants tapping the Gulf Coast Aquifer, each producing 3–12 million gallons per day. Since 2013, a 10.85-MGD Surface Water Treatment Plant (SWTP) blends treated surface water from Oyster Creek (18,000 AFY water right), the Gulf Coast Water Authority (10 MGD from the Brazos River), and the Brazos River Authority (6,388 AFY), distributed via blending before customer delivery.

The watershed encompasses the lower Brazos River basin and Oyster Creek, draining through coastal plains over the underlying Gulf Coast Aquifer. This aquifer features Tertiary-Quaternary sands and clays reaching depths over 1,200 feet, while the river cuts through Cretaceous limestones and Tertiary sediments. Prolonged contact with carbonate-rich rocks leaches calcium and magnesium into groundwater; blended river water slightly dilutes but preserves the overall mineralised profile typical of the region, producing a hard supply prone to scale formation.

Moderately hard water in Sugar Land causes scale buildup on fixtures, faucets, glassware, and inside pipes, reducing water heater efficiency by up to 20–30% over time. Dishwashers, washing machines, and coffee makers are most affected, leading to higher energy bills and increased cleaning needs. Regular vinegar descaling, low-flow aerators, and a whole-home water softener are recommended for households — especially in groundwater-dominant zones — to extend appliance life and improve soap efficiency. Sugar Land's water earned recognition as 'best in the U.S.' from the American Water Works Association; the utility meets EPA lead/copper rules via corrosion control and monitors haloacetic acids, trihalomethanes, and nitrates at safe levels, with annual Consumer Confidence Reports confirming compliance.

Geology & Source: Gulf Coast Aquifer — Tertiary-Quaternary sands and clays (Miocene to Pleistocene); prolonged carbonate contact leaches calcium and magnesium; Brazos River cuts through Cretaceous limestones — blended supply retains hard character

Other Texas Water Reports

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Frequently Asked Questions

Is Sugar Land's water safe to drink?
Yes. Sugar Land's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Sugar Land?
At ≈ 120–179 mg/L (Hard), Sugar Land'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 20%.
How does Sugar Land compare to the USA average?
The USA national average is 151 mg/L. Sugar Land (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Sugar Land 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

pH

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.