Firestone Water Hardness & Quality Report (2026)
Water Hardness
7.2 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
276.1 mg/L
Est. Daily Cost
$0.33
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 Firestone, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Firestone | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.5 yrs | 8.5 yrs | -35% |
| Washing Machine | 9 yrs | 12 yrs | -25% |
| Water Heater | 10.7 yrs | 15 yrs | -29% |
Regional Water Comparison
How Firestone compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Firestone, Colorado | 123 mg/L | 4.3 ppt | 🟠 Hard | reservoir |
| Frederick, Colorado | 132.5 mg/L | 4.6 ppt | 🟠 Hard | reservoir |
| Erie, Colorado | 116.5 mg/L | 4.1 ppt | 🟡 Moderately Hard | reservoir |
| Brighton, Colorado | 145 mg/L | 5 ppt | 🟠 Hard | reservoir |
| Longmont, Colorado | 109 mg/L | 3.9 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Firestone compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Firestone | 123 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Firestone's Water Unique?
Local geology and source profile
Firestone, Colorado, in Weld County — a Weld County town adjacent to Frederick and Longmont in the northeast Colorado Front Range corridor — receives its water from the Town of Firestone Water system or a local Metropolitan District, drawing from Carter Lake via the Colorado-Big Thompson Project through the northeast Colorado distribution.
The moderately hard 123 mg/L hardness and TDS of 276.1 mg/L reflect the Weld County Colorado-Big Thompson supply's moderate calcareous character — the Precambrian Front Range gneiss contributes insoluble dilution while the transmontane water picks up Cretaceous Pierre Shale mineral content as it crosses the Front Range foothills (compare Frederick CO: 120/270 in Weld County comparable; Longmont CO: 125/280 in Boulder County comparable; Firestone consistent moderate from the same Weld County Carter Lake Colorado-Big Thompson Precambrian-Cretaceous supply). The Colorado-Big Thompson watershed at Weld County — Precambrian Front Range Gneiss (insoluble — primary dilutant), Cretaceous Pierre Shale (slightly calcareous — primary hardness contributor), and Quaternary Front Range alluvium (calcareous — minor TDS).
At 123 mg/L with TDS 276, Firestone's water is moderately hard — mild scale buildup in appliances over time. Semi-annual descaling is appropriate. The PFAS level of 4.3 ppt is moderate — a certified drinking water filter provides added protection. Review the town's annual water quality report for the latest contaminant data.
Geology & Source: Firestone in Weld County draws from Firestone Water on Carter Lake reservoir (Weld County, northeast Colorado) — the Colorado-Big Thompson watershed at Weld County drains Precambrian Front Range Gneiss (insoluble) and Cretaceous Pierre Shale (slightly calcareous) — Colorado Weld County Carter Lake Colorado-Big Thompson supply produces moderately hard water at 123 mg/L with TDS 276.1 mg/L.