Hardness
Very Hard
324.5 PPM · 19 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 Sibley County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
324.5 PPM · 19 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.002 mg/L
13% of action level
Utility match
1 system
Serves 2,269 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
324.5 PPM
Parts per million
324.5
mg/L as CaCO₃ equivalent
Grains per gallon
19
1 GPG ≈ 17.1 PPM
What this means at home
At 324.5 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
92
Nearest site
41.2 mi
Observation range
May 10, 2016–Aug 28, 2018
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: PDCT-U11 115N22W24DBCDDC01 0000163491 (Well).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.
Gaylord median
325 PPM
About the same1 indexed ZIP readings · Range 324.5–324.5 PPM
Minnesota median
318 PPM
7 PPM higher319 indexed ZIP readings · Range 46.1–716 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)
0.002 mg/L
Reported Dec 31, 2023
Copper (CU90)
2.1 mg/L
Reported Dec 31, 2020
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.002
EPA limit 0.015
Measured in mg/L
Local 2.1
EPA limit 1.3
100% line = listed limit
No violation record was returned for the associated systems in the imported lookback window beginning Jan 1, 2021.
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 Gaylord ZIP 55334 using 324.5 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
324.5 PPM is 3× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsDrinking water protection
Copper (90th percentile) has a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
Explore under-sink filtrationAffiliate 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.
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 324.5 PPM, or 19 grains per gallon, classified as very hard. This is not a household tap measurement.
At 324.5 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.