Sherrelwood Water Hardness & Quality Report (2026)
Water Hardness
9.5 grains per gallon
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.009 mg/L
✓ Below action level
TDS
433.7 mg/L
Est. Daily Cost
$0.43
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 Sherrelwood, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Sherrelwood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.2 yrs | 8.5 yrs | -51% |
| Washing Machine | 7.6 yrs | 12 yrs | -37% |
| Water Heater | 9.1 yrs | 15 yrs | -39% |
Regional Water Comparison
How Sherrelwood compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Sherrelwood, Colorado | 163 mg/L | 5.6 ppt | 🟠 Hard | reservoir |
| Federal Heights, Colorado | 101.5 mg/L | 3.7 ppt | 🟡 Moderately Hard | reservoir |
| Westminster, Colorado | 55.5 mg/L | 2.2 ppt | 🟢 Soft | reservoir |
| Thornton, Colorado | 63 mg/L | 2.5 ppt | 🟡 Moderately Hard | reservoir |
| Welby, Colorado | 152 mg/L | 5.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Sherrelwood compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sherrelwood | 163 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Sherrelwood's Water Unique?
Local geology and source profile
Sherrelwood, Colorado, in Adams County — an unincorporated Adams County community adjacent to Westminster and Thornton, in the north Denver suburban corridor — receives its municipal water from Denver Water or North Table Mountain Water District (Westminster), drawing from the South Platte River system through the Denver metro distribution network.
The moderately hard 163 mg/L hardness and TDS of 433.7 mg/L are consistent with the north Denver metro Front Range blended supply — harder than the central Denver supply (typically 120-140 mg/L from the Dillon and other mountain reservoirs), reflecting the Adams County distribution zone's possibly greater reliance on South Platte River alluvial groundwater or a harder Front Range tributary. The South Platte River at Denver receives snowmelt from the Front Range (Precambrian Idaho Springs and Berthoud Pass gneiss — soft), blended with the calcareous Great Plains alluvial runoff.
At 163 mg/L, Sherrelwood's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and bathroom fixtures develop calcium deposits. Quarterly descaling is appropriate. The PFAS level of 5.6 ppt warrants a certified drinking water filter — Buckley Air Force Base (Aurora, Arapahoe County — AFFF in the South Platte watershed), the Adams County industrial corridor (Commerce City refinery-chemical belt), and the Denver metro PFAS complex contribute to Sherrelwood's readings.
Geology & Source: Sherrelwood in Adams County draws from Denver Water or North Table Mountain Water on the South Platte River watershed (Denver metro, Front Range) — the South Platte drains the Front Range (Precambrian Idaho Springs Gneiss) and Great Plains calcareous Quaternary alluvium — Colorado Front Range-Great Plains blended watershed produces moderately hard water at 163 mg/L with TDS 434 mg/L in this Adams County Colorado community.