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Roma Water Hardness & Quality Report (2026)

Water Hardness

240mg/L
Very Hard

14 grains per gallon

Source

mixed

pH Level

8.4

neutral = 7.0

Lead

0.005 mg/L

βœ“ Below action level

TDS

612.7 mg/L

Est. Daily Cost

$0.64

energy & soap waste

Source: USGS Water Quality Portal Β· Updated 2026

240mg/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 Roma, your appliances are currently losing 32% efficiency due to mineral buildup.

ApplianceIn RomaSoft Water CityEfficiency Loss
Kettle
1.7 yrs
8.5 yrs-80%
Washing Machine
4.7 yrs
12 yrs-61%
Water Heater
6 yrs
15 yrs-60%

Regional Water Comparison

How Roma compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Roma, Texas240 mg/L8.1 pptπŸ”΄ Very Hardmixed
Rio Grande City, Texas286 mg/L9.1 pptπŸ”΄ Very Hardmixed
La Homa, Texas170.5 mg/L6.7 ppt🟠 Hardmixed
Alton, Texas189 mg/L7.1 pptπŸ”΄ Very Hardmixed
Mission, Texas172.5 mg/L6.7 ppt🟠 Hardmixed

National Benchmark

How Roma compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Roma240 mg/LπŸ”΄ High
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟒 None

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What Makes Roma's Water Unique?

Local geology and source profile

Source: MixedTDS: 612.7 mg/LpH: 8.4

Roma, Texas, in Starr County β€” a Starr County city adjacent to Rio Grande City and Falcon Heights on the Rio Grande in the south Texas border region β€” receives its water from the City of Roma Water Department, drawing from the Rio Grande through the south Texas border distribution.

The very hard 240 mg/L hardness and high TDS of 612.7 mg/L reflect the Starr County supply's very hard Rio Grande Valley character β€” the Eocene Wilcox Group and Quaternary Rio Grande alluvium are calcareous-saline formations in the south Texas Gulf Coastal Plain; the Rio Grande at Starr County acquires very hard dissolved mineral content from its extensive Chihuahuan Desert and Mexican Highland drainage (compare Rio Grande City TX: 236/602 in Starr County comparable; Falcon Heights TX: 244/623 in Starr County comparable; Roma consistent very hard from the same Starr County Rio Grande Eocene calcareous supply). The Rio Grande at Starr County β€” Eocene Wilcox Group (calcareous β€” primary hardness contributor), Quaternary Rio Grande alluvium (calcareous saline β€” secondary contributor), and Holocene Rio Grande deltaic sediment (saline β€” TDS contributor).

At 240 mg/L with TDS 613, Roma's water is very hard β€” a water softener is strongly recommended to protect plumbing and appliances. The PFAS level of 8.1 ppt warrants a certified drinking water filter. Review the City of Roma's annual water quality report.

Geology & Source: Roma in Starr County draws from the Roma Water on the Rio Grande (Starr County, south Texas) β€” the south Texas Rio Grande Valley at Starr County draws from Eocene Wilcox Group (calcareous) and Quaternary Rio Grande alluvium (calcareous saline) β€” Texas Starr County Rio Grande Eocene calcareous supply produces very hard water at 240 mg/L with TDS 612.7 mg/L.

Other Texas Water Reports

Frequently Asked Questions

Is Roma's water safe to drink?
Yes. Roma's water meets all federal safety standards. The hardness is 240 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 Roma?
At 240 mg/L (Very Hard), Roma'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 32%.
How does Roma compare to the USA average?
The USA national average is 150 mg/L. Roma at 240 mg/L is 90 mg/L above the national average. The softest major city is Badger at just 8.5 mg/L.