How does Pharr's water compare to the national average?

The USA national average is 151 mg/L. Pharr (≈ 180+ mg/L) is 189 mg/L harder than average.

Pharr Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.5

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

1388.1 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 Pharr, your appliances are currently losing 45% efficiency due to mineral buildup.

Appliance	In Pharr	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 Pharr compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Pharr, Texas	≈ 180+ mg/L	16.6 ppt	🔴 Very Hard	reservoir
San Juan, Texas	≈ 120–179 mg/L	154.4 ppt	🟠 Hard	reservoir
McAllen, Texas	≈ 180+ mg/L	47.5 ppt	🔴 Very Hard	reservoir
Alamo, Texas	≈ 180+ mg/L	36.5 ppt	🔴 Very Hard	reservoir
Edinburg, Texas	≈ 120–179 mg/L	112.5 ppt	🟠 Hard	reservoir

National Benchmark

How Pharr compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Pharr	≈ 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 Pharr's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 1388.1 mg/LpH: 8.5

The City of Pharr Municipal Water Company serves approximately 71,158 residents in Pharr, Texas, located in Hidalgo County. The primary water source is surface water drawn from the Rio Grande River, accessed via the Hidalgo County Irrigation District #2 (HCID #2). Treatment includes conventional filtration, pre-oxidation with chlorine, and disinfection using chloramines, chlorine, and chlorine dioxide before distribution. The utility is located at PO Box 1729, Pharr, TX 78577, and can be reached at 956-402-4000.

The Rio Grande watershed spans arid and semi-arid terrain across the Gulf Coastal Plain, drawing from the Rio Grande-Rio Bravo basin. Local geology features Cretaceous limestone formations — including the Anacacho and Escondido formations — alongside alluvial sediments and underlying Tertiary sands and clays. These carbonate-rich strata dissolve calcium and magnesium into the river, producing a moderately to highly mineralized, hard water supply.

Very hard water promotes significant scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Kettles and fixtures develop visible mineral deposits, increasing energy costs. Regular descaling and use of scale inhibitors are recommended; a whole-house water softener is strongly advised. The 2024 Consumer Confidence Report confirms compliance with MCLs for fluoride (0.6 ppm), nitrate (0.21 ppm), and barium (0.11 ppm); independent assessments note arsenic exceeding health guidelines.

Geology & Source: Rio Grande Gulf Coastal Plain; Cretaceous Anacacho and Escondido limestone formations plus alluvial sediments — calcium and magnesium dissolution yields hard water

Other Texas Water Reports

San Juan

≈ 120–179 mg/L

🟠 Hard

McAllen

≈ 180+ mg/L

🔴 Very Hard

Alamo

≈ 180+ mg/L

🔴 Very Hard

Edinburg

≈ 120–179 mg/L

🟠 Hard

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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 Pharr's water safe to drink?

Yes. Pharr'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 Pharr?

At ≈ 180+ mg/L (Very Hard), Pharr'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 Pharr compare to the USA average?

The USA national average is 151 mg/L. Pharr (≈ 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 Pharr 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.