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Horizon City Water Hardness & Quality Report (2026)

Water Hardness

377.5mg/L
Very Hard

22.1 grains per gallon

Source

mixed

pH Level

8.5

neutral = 7.0

Lead

0.008 mg/L

βœ“ Below action level

TDS

1132.2 mg/L

Est. Daily Cost

$1.00

energy & soap waste

Source: USGS Water Quality Portal Β· Updated 2026

377.5mg/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 Horizon City, your appliances are currently losing 45% efficiency due to mineral buildup.

ApplianceIn Horizon CitySoft 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 Horizon City compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Horizon City, Texas377.5 mg/L11 pptπŸ”΄ Very Hardmixed
Socorro Mission Number 1 Colonia, Texas353 mg/L10.5 pptπŸ”΄ Very Hardmixed
Socorro, Texas352 mg/L10.5 pptπŸ”΄ Very Hardmixed
El Paso, Texas407 mg/L11.7 pptπŸ”΄ Very Hardmixed
Chaparral, New Mexico407 mg/L4 pptπŸ”΄ Very Hardgroundwater

National Benchmark

How Horizon City compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Horizon City377.5 mg/LπŸ”΄ High
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟒 None

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What Makes Horizon City's Water Unique?

Local geology and source profile

Source: MixedTDS: 1132.2 mg/LpH: 8.5

Horizon City, Texas, in El Paso County β€” an El Paso County city east of El Paso in the Chihuahuan Desert basin, in the rapidly growing east El Paso suburban corridor adjacent to the Fort Bliss expansion zone β€” receives its municipal water from El Paso Water Utilities (EPWU) or local Horizon City Water, drawing from the Rio Grande system and the Hueco Bolson Aquifer in the El Paso-Horizon City corridor.

The very hard 377.5 mg/L hardness and very high TDS of 1132.2 mg/L reflect El Paso's extreme Chihuahuan Desert water chemistry. The Rio Grande at El Paso flows through the Chihuahuan Desert β€” draining the Permian Reef complex (Guadalupe Mountains β€” nearly pure limestone), the Permian Basin evaporite terrain (gypsum, anhydrite, halite), and the Paleozoic carbonate platform of southern New Mexico-west Texas. The Hueco Bolson (the primary regional aquifer) is a closed desert basin aquifer where ancient and modern recharge concentrates calcium, magnesium, sulfate, and sodium through minimal drainage and high evaporation, producing the extreme TDS characteristic of Chihuahuan Desert basin groundwater.

At 377.5 mg/L with TDS 1132 mg/L, Horizon City's water is very hard with very high TDS. A whole-house water softener is essential and kitchen reverse osmosis filtration for drinking and cooking is strongly recommended β€” TDS of 1132 mg/L is triple the EPA aesthetic guideline. The PFAS level of 11.0 ppt warrants a certified reverse osmosis drinking water filter β€” Fort Bliss (El Paso β€” one of the US Army's largest installations, a major AFFF user in the Hueco Bolson-Rio Grande watershed) is the primary documented PFAS source in the Horizon City supply area.

Geology & Source: Horizon City in El Paso County draws from the El Paso Water Utilities or Horizon City Water on the Rio Grande (EPWU system) and the Hueco Bolson Aquifer (El Paso County desert basin alluvial) β€” the Rio Grande at El Paso drains the Chihuahuan Desert (Permian Reef limestone, Paleozoic evaporite); the Hueco Bolson concentrates minerals in the closed Chihuahuan Basin β€” extremely hard water at 377.5 mg/L with very high TDS 1132 mg/L in this El Paso County Texas city.

Other Texas Water Reports

Frequently Asked Questions

Is Horizon City's water safe to drink?
Yes. Horizon City's water meets all federal safety standards. The hardness is 377.5 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 Horizon City?
At 377.5 mg/L (Very Hard), Horizon City'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 Horizon City compare to the USA average?
The USA national average is 150 mg/L. Horizon City at 377.5 mg/L is 228 mg/L above the national average. The softest major city is Badger at just 8.5 mg/L.
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