Cedar Park Water Hardness & Quality Report (2026)
Water Hardness
24.2 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1290.7 mg/L
Est. Daily Cost
$1.00
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 Cedar Park, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Cedar Park | 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 Cedar Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Cedar Park, Texas | 414 mg/L | 11.8 ppt | 🔴 Very Hard | mixed |
| Jollyville, Texas | 180 mg/L | 6.9 ppt | 🔴 Very Hard | mixed |
| Leander, Texas | 419.5 mg/L | 11.9 ppt | 🔴 Very Hard | mixed |
| Brushy Creek, Texas | 361.5 mg/L | 10.7 ppt | 🔴 Very Hard | mixed |
| Round Rock, Texas | 101 mg/L | 5.2 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Cedar Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Cedar Park | 414 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Cedar Park's Water Unique?
Local geology and source profile
Cedar Park, Texas, in Williamson County northwest of Austin — one of the fastest-growing cities in the United States throughout the 2000s–2020s, in the heart of Austin's north tech corridor — draws its municipal water supply from both the Edwards Aquifer (Barton Springs–Edwards Aquifer Authority wells in the Brushy Creek watershed) and Lake Travis (Colorado River–Highland Lakes system) surface water via the City of Cedar Park Water Resources Division and multiple Brushy Creek Municipal Utility District service zones. Water hardness in Cedar Park reaches an extraordinary 414 mg/L — classified as extremely hard, one of the highest municipal hardness levels in the United States.
Cedar Park's extreme hardness reflects the Texas Hill Country's exceptional calcareous geology applied to the combined Edwards Aquifer and Highland Lakes supply. The Edwards Aquifer in Williamson County accesses the Cretaceous Edwards Group limestone (one of the most reactive calcareous formations on Earth — the primary Austin-area aquifer, formed from coral reef and oolitic shoal limestone of extraordinary purity and reactivity), producing groundwater at 300–500+ mg/L hardness from the dense limestone karst. The Lake Travis supply (Colorado River at the Highland Lakes in Travis and Burnet Counties) drains the Texas Hill Country (Edwards Limestone, Glen Rose Formation, Cambrian Hickory Sandstone) — all calcareous formations. The combined Edwards Aquifer and Highland Lakes surface water blend in the Cedar Park area produces the extraordinary 414 mg/L supply.
At 414 mg/L, Cedar Park residents face some of the most severe hard water challenges in the US. Scale forms within 24–48 hours on all surfaces and fixtures. Daily to every-other-day descaling may be necessary. Water heaters fail prematurely without regular professional maintenance. City of Cedar Park Water Resources Division consistently delivers water meeting all Texas TCEQ and EPA Safe Drinking Water Act requirements, but home water softeners are strongly advisable.
Geology & Source: Groundwater from the Edwards Aquifer and surface water from Lake Travis (Highland Lakes, Colorado River) via the City of Cedar Park Water Resources Division and the Brushy Creek Municipal Utility District — the Texas Hill Country Edwards Limestone and Cretaceous Glen Rose Formation of Williamson County; extremely hard supply at 414 mg/L — one of the hardest municipal supplies in the United States.