Hardness
Soft
17.5 PPM · 1 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Larimer County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
17.5 PPM · 1 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0033 mg/L
22% of action level
Utility match
2 systems
Serves 91,077 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
17.5 PPM
Parts per million
17.5
mg/L as CaCO₃ equivalent
Grains per gallon
1
1 GPG ≈ 17.1 PPM
What this means at home
At 17.5 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
98
Nearest site
3 mi
Observation range
Jan 5, 2016–Jun 2, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: BIG THOMPSON R BLW SULZER GULCH NR LOVELAND, CO (Stream).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Loveland median
17 PPM
About the same2 indexed ZIP readings · Range 15.6–17.5 PPM
Colorado median
59 PPM
41 PPM lower161 indexed ZIP readings · Range 13.7–829 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0033 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0033
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | CO0135428 | Unaddressed | Jul 1, 2025 |
| Lead and Copper Rule | CO0135428 | Unaddressed | Apr 1, 2025 |
| Revised Total Coliform Rule | CO0135428 | Resolved | Nov 20, 2024through Apr 24, 2025 |
| Lead and Copper Rule | CO0135428 | Unaddressed | Jul 1, 2024 |
| Lead and Copper Rule | CO0135428 | Resolved | Apr 1, 2024through Dec 4, 2024 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | CO0135428 | Resolved | Jan 11, 2024through Dec 4, 2024 |
| Revised Total Coliform Rule | CO0135428 | Unaddressed | Jan 11, 2024 |
| Surface Water Treatment Rule | CO0135485 | Archived | Apr 1, 2022through Apr 30, 2022 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Loveland ZIP 80537 using 17.5 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.
Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Nearby indexed reports
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
Nearby USGS observations produce an estimate of 17.5 PPM, or 1 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.