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Cypress Water Hardness & Quality Report (2026)

Water Hardness

370.5mg/L
Very Hard

21.6 grains per gallon

Source

mixed

pH Level

8.5

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

1102.8 mg/L

Est. Daily Cost

$0.99

energy & soap waste

Source: USGS Water Quality Portal · Updated 2026

370.5mg/L as CaCO₃Very Hard

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 Cypress, your appliances are currently losing 45% efficiency due to mineral buildup.

ApplianceIn CypressSoft Water CityEfficiency Loss
Kettle
1.5 yrs
8.5 yrs-82%
Washing Machine
3 yrs
12 yrs-75%
Water Heater
5 yrs
15 yrs-67%
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Regional Water Comparison

How Cypress compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Cypress, Texas370.5 mg/L10.9 ppt🔴 Very Hardmixed
Katy, Texas363 mg/L10.7 ppt🔴 Very Hardmixed
Cinco Ranch, Texas276 mg/L8.9 ppt🔴 Very Hardmixed
Alief, Texas145 mg/L6.1 ppt🟠 Hardmixed
Mission Bend, Texas173 mg/L6.7 ppt🟠 Hardmixed

National Benchmark

How Cypress compares to the USA average

BenchmarkHardnessAppliance Risk
Cypress370.5 mg/L🔴 High
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟢 None

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What Makes Cypress's Water Unique?

Local geology and source profile

Source: MixedTDS: 1102.8 mg/LpH: 8.5

Cypress, Texas, an unincorporated community in Harris County, receives its water supply through the Harris County Municipal Utility Districts (MUDs) and the City of Houston's water distribution infrastructure, drawing from a blend of Gulf Coast Aquifer groundwater (Chicot and Evangeline Aquifer formations) and surface water from Barker and Addicks Reservoirs on Buffalo Bayou. The Houston Water system supplements supply through the Lake Houston and Lake Conroe surface water intakes. Harris County's vast MUD network manages distribution throughout Cypress's sprawling suburban landscape. Water hardness reaches 370.5 mg/L — extremely hard and among the highest for a major Texas suburban community.

Cypress's extreme hardness is rooted in the geology of the Gulf Coast Aquifer and Houston–Harris County watershed. The Chicot and Evangeline Aquifers — the primary groundwater sources — are composed of Quaternary and Tertiary sand, silt, and clay beds interspersed with Cretaceous Austin Chalk and calcareous marl derived from ancient Gulf of Mexico seafloor sediments. As groundwater percolates through these calcium carbonate-rich Tertiary formations, it accumulates very high dissolved calcium and bicarbonate loads. Surface water from Buffalo Bayou and Lake Houston drains Houston's extensive agricultural and suburban hinterland over carbonate-rich coastal plain soils, adding further hardness to the blended supply.

At 370.5 mg/L, Cypress households face extreme limescale challenges. Showerheads and faucet aerators clog quickly with mineral deposits — weekly cleaning with descaling products is standard practice. Water heaters experience accelerated element failure and reduced efficiency without frequent descaling; a whole-house water softener is strongly recommended by local plumbers as standard equipment. Dishwashers consistently leave glassware spotty without rinse-aid, and tile, glass, and chrome surfaces require regular acidic cleaning to control calcium build-up throughout the home.

Geology & Source: Mixed surface water from the Barker Reservoir and Addicks Reservoir on Buffalo Bayou and groundwater from the Gulf Coast Aquifer (Evangeline and Chicot Aquifers) — Cretaceous Austin Chalk and Tertiary Fleming Formation sediments contribute very high calcium and bicarbonate loads across the greater Houston–Harris County watershed, producing extremely hard supply at 370.5 mg/L.

Other Texas Water Reports

Frequently Asked Questions

Is Cypress's water safe to drink?
Yes. Cypress's water meets all federal safety standards. The hardness is 370.5 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 Cypress?
At 370.5 mg/L (Very Hard), Cypress'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 Cypress compare to the USA average?
The USA national average is 150 mg/L. Cypress at 370.5 mg/L is 221 mg/L above the national average. The softest major city is Badger at just 8.5 mg/L.
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