Edinburg Water Hardness & Quality Report (2026)
Water Hardness
8.2 grains per gallon
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
311.9 mg/L
Est. Daily Cost
$0.37
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
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 Edinburg, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Edinburg | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5 yrs | 8.5 yrs | -41% |
| Washing Machine | 8.4 yrs | 12 yrs | -30% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Edinburg compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Edinburg, Texas | 140 mg/L | 6 ppt | 🟠 Hard | mixed |
| Pharr, Texas | 435.5 mg/L | 12.3 ppt | 🔴 Very Hard | mixed |
| San Juan, Texas | 432.5 mg/L | 12.2 ppt | 🔴 Very Hard | mixed |
| McAllen, Texas | 266 mg/L | 8.7 ppt | 🔴 Very Hard | mixed |
| Alamo, Texas | 120 mg/L | 5.6 ppt | 🟠 Hard | mixed |
National Benchmark
How Edinburg compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Edinburg | 140 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Edinburg's Water Unique?
Local geology and source profile
Edinburg, Texas — the Hidalgo County seat in the Lower Rio Grande Valley (Valley) — draws its municipal water supply from the Rio Grande via the City of Edinburg Water Division, sourcing from the Hidalgo County Irrigation District #1 (HCID#1) water delivery infrastructure and the regional Valley Water Treatment Plant serving the Edinburg–McAllen metropolitan area. The Rio Grande at the Hidalgo County reach represents the final stretch of the river before the Gulf of Mexico. Water hardness in Edinburg measures 140 mg/L — classified as moderately hard.
Edinburg's moderate hardness on the Rio Grande at the Valley reach reflects the river's accumulated mineral load from the entire Rio Grande Basin. The Rio Grande collects drainage from: the Texas Big Bend Cretaceous limestone (Boquillas Formation, Santa Elena Limestone — major carbonate input); the Trans-Pecos calcareous basin (Permian and Cretaceous calcareous formations); the Chihuahua Desert Cretaceous Sierra Madre calcareous formations (via the Rio Conchos from Mexico); and the semi-arid Chihuahuan Desert terrain that concentrates evaporite minerals in Rio Grande tributaries. By the Valley reach at Edinburg, the Rio Grande has accumulated substantial dissolved minerals. The relatively moderate finished hardness (140 mg/L) compared to some Rio Grande Basin readings reflects the Valley's water treatment optimisation.
With hardness at 140 mg/L, Edinburg residents encounter moderate scale accumulation. Faucet aerators and showerheads develop deposits after several months — monthly cleaning with citric acid solution is practical maintenance. Dishwashers produce cleaner glassware with rinse-aid. City of Edinburg Water Division and HCID#1 consistently deliver water meeting all Texas TCEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Rio Grande via the Hidalgo County Irrigation District #1 (HCID#1) and the City of Edinburg Water Division — the Rio Grande at the Hidalgo County reach receives extremely calcareous Chihuahuan Desert Cretaceous limestone, Trans-Pecos calcareous terrain, and Tamaulipan Plain calcareous sediment drainage; moderately hard supply at 140 mg/L in the Lower Rio Grande Valley.