Welby Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
387.1 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 Welby, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Welby | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Welby compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Welby, Colorado | ≈ 120–179 mg/L | 5.2 ppt | 🟠 Hard | reservoir |
| Thornton, Colorado | ≈ 180+ mg/L | 232.6 ppt | 🔴 Very Hard | reservoir |
| Commerce City, Colorado | ≈ 180+ mg/L | 85.9 ppt | 🔴 Very Hard | reservoir |
| Federal Heights, Colorado | ≈ 120–179 mg/L | 0 ppt | 🟠 Hard | reservoir |
| Sherrelwood, Colorado | ≈ 120–179 mg/L | 5.6 ppt | 🟠 Hard | reservoir |
National Benchmark
How Welby compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Welby | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Welby's Water Unique?
Local geology and source profile
Information regarding the water supply for Welby, Colorado, a community within Adams County, is not readily available through standard online searches. This lack of readily accessible data means specific details about its water utility, the exact sources like reservoirs or aquifers, and the treatment plants involved in making the water safe for consumption are unknown at this time. To get a clear picture of the local water quality and supply, residents are advised to directly contact their water provider or seek out the latest Consumer Confidence Report (CCR) from the company serving the Welby area. The EPA's SDWIS database might also offer insights into the utility's compliance and water quality history.
The water serving Welby originates from the South Platte River watershed in Adams County, which drains the Rocky Mountain Front Range. This region is geologically diverse, featuring insoluble Precambrian granite alongside Cretaceous Pierre Shale and Paleocene calcareous formations. This blend of rock types contributes to the water being moderately hard, carrying dissolved solids from the varied geological makeup of the watershed.
Homeowners in Welby might notice the moderate hardness affecting their plumbing and appliances. Over time, mineral buildup can lead to issues in water heaters and dishwashers, potentially shortening their lifespan. While not a severe hardness, it can impact how effectively soap lathers. For those looking to improve water taste or reduce scale formation, a water softener can be a beneficial addition to the home's plumbing system. Direct contact with the local utility is the best way to understand specific water quality parameters.
Geology & Source: South Platte River watershed; Precambrian granite, Cretaceous Pierre Shale, and Paleocene calcareous formations produce moderate hardness
Other Colorado Water Reports
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Frequently Asked Questions
Is Welby's water safe to drink?
Do I need a water softener in Welby?
How does Welby compare to the USA average?
Data Sources & Methodology
Water quality data for Welby is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.