Port Lavaca Water Hardness & Quality Report (2026)
Water Hardness
15.1 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
675.5 mg/L
Est. Daily Cost
$0.69
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 Port Lavaca, your appliances are currently losing 34% efficiency due to mineral buildup.
| Appliance | In Port Lavaca | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4 yrs | 12 yrs | -67% |
| Water Heater | 5.3 yrs | 15 yrs | -65% |
Regional Water Comparison
How Port Lavaca compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Port Lavaca, Texas | 258.5 mg/L | 8.5 ppt | 🔴 Very Hard | mixed |
| Victoria, Texas | 406 mg/L | 11.6 ppt | 🔴 Very Hard | mixed |
| Bay City, Texas | 383 mg/L | 11.2 ppt | 🔴 Very Hard | mixed |
| Portland, Texas | 268 mg/L | 8.7 ppt | 🔴 Very Hard | mixed |
| Corpus Christi, Texas | 183 mg/L | 6.9 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Port Lavaca compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Port Lavaca | 258.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Port Lavaca's Water Unique?
Local geology and source profile
Port Lavaca, Texas, in Calhoun County — the Calhoun County seat adjacent to Victoria and Rockport on the Lavaca Bay in south Texas — receives its water from the City of Port Lavaca Water, drawing from the Lavaca River or Lake Texana (Calhoun County) through the south Texas Gulf Coast distribution.
The very hard 258.5 mg/L hardness and TDS of 675.5 mg/L reflect the south Texas Gulf Coast Calhoun County supply's very hard calcareous character — the Pleistocene Beaumont Formation highly calcareous and Miocene Oakville Formation produce very hard water compounded by the Calhoun County coastal evaporative concentration (compare Lumberton TX: 425.5/1342 harder in Hardin County; Port Lavaca very hard from the south Texas Gulf Coast calcareous draw). The Lavaca Bay at Calhoun County — Pleistocene Beaumont Formation (highly calcareous — primary hardness contributor), Miocene Oakville Formation (calcareous — secondary contributor), and Gulf Coast evaporative concentration (calcareous — TDS contributor).
At 258.5 mg/L with TDS 676, Port Lavaca's water is very hard. A water softener is strongly recommended to prevent rapid scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 8.5 ppt warrants a certified drinking water filter — the Calhoun County south Texas petrochemical and coastal industrial corridor contribute to Port Lavaca's elevated readings.
Geology & Source: Port Lavaca in Calhoun County draws from the City of Port Lavaca Water on the Lavaca River or Lake Texana (Calhoun County, south Texas Gulf Coast) — the Lavaca Bay at Calhoun County drains the Gulf Coast (Pleistocene Beaumont Formation — highly calcareous) and Miocene Oakville Formation (calcareous) — Texas Calhoun County Lavaca Bay Pleistocene-Miocene Gulf Coast supply produces very hard water at 258.5 mg/L with TDS 675.5 mg/L.