Temple Water Hardness & Quality Report (2026)
Water Hardness
18.6 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
894.1 mg/L
Est. Daily Cost
$0.85
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 Temple, your appliances are currently losing 42% efficiency due to mineral buildup.
| Appliance | In Temple | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Temple compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Temple, Texas | 318.5 mg/L | 9.8 ppt | 🔴 Very Hard | mixed |
| Belton, Texas | 230.5 mg/L | 7.9 ppt | 🔴 Very Hard | mixed |
| Harker Heights, Texas | 166.5 mg/L | 6.6 ppt | 🟠 Hard | mixed |
| Killeen, Texas | 433.5 mg/L | 12.2 ppt | 🔴 Very Hard | mixed |
| Hewitt, Texas | 328.5 mg/L | 10 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Temple compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Temple | 318.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Temple's Water Unique?
Local geology and source profile
Temple, Texas, in Bell County in Central Texas — a major Scott & White Health medical center city and railroad hub on I-35 — draws its municipal water supply from Belton Lake (a Corps of Engineers impoundment on the Leon River in Bell County) via the City of Temple Utilities Water Division, treating Lake Belton water at the Temple Water Treatment Plant serving the Temple–Killeen–Belton metropolitan area. The Leon River flows from the Texas Hill Country across the Blackland Prairie. Water hardness in Temple reaches 318.5 mg/L — classified as very hard.
Temple's very hard supply reflects the Bell County watershed's exceptional Central Texas carbonate geology. The Leon River above Belton Lake drains: the Texas Hill Country Edwards Plateau — the world-famous Edwards Limestone (Cretaceous — one of the most reactive carbonate formations on Earth, the primary aquifer of the Edwards Aquifer in the San Antonio area); the Glen Rose Formation (Cretaceous limestone and marl — highly calcareous); and the Cretaceous Taylor Marl and Austin Chalk of the Texas Blackland Prairie in Bell County. These Central Texas Cretaceous limestone formations are among the highest carbonate reactivity terrains in North America, producing extraordinary dissolved calcium loads. The Blackland Prairie's heavy clay soils (formed from Austin Chalk and Taylor Marl parent material) intensify calcium leaching through the watershed.
At 318.5 mg/L, Temple residents face significant hard water challenges. Scale deposits form rapidly on all fixtures — monthly descaling with commercial citric acid products is essential maintenance. Dishwashers require rinse-aid, and water heaters need annual professional inspection. City of Temple Utilities Water Division consistently delivers water meeting all Texas TCEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from Belton Lake (Leon River) and Lake Stillhouse Hollow via the City of Temple Utilities Water Division — the Central Texas Bell County Leon–Lampasas River watershed draining the Cretaceous Edwards Limestone, Austin Chalk, Glen Rose Formation, and Taylor Marl of the Texas Hill Country and Blackland Prairie; very hard supply at 318.5 mg/L in Bell County.