Hardness
Very Hard
267 PPM · 15.6 GPG
Local water dashboard
Official source aggregationWater quality in Anamosa, IA 52205
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Jones County.
1 reported benchmark flag
- Primary matched system
- Anamosa Municipal Water Supply
- Source water
- Groundwater
- County
- Jones County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.001 mg/L
7% of action level
Utility match
3 systems
Serves 4,457 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
267 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
267
mg/L as CaCO₃ equivalent
Grains per gallon
15.6
1 GPG ≈ 17.1 PPM
What this means at home
At 267 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
65
Nearest site
0.7 mi
Observation range
Feb 9, 2016–Mar 3, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: 084N04W02DBBB 31624 1990Anamosa 5 (Well).USGS source documentation ↗
Regional context
Is 52205 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Anamosa median
267 PPM
About the same1 indexed ZIP readings · Range 267–267 PPM
Iowa median
281 PPM
14 PPM lower721 indexed ZIP readings · Range 182–834 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass1 fail
Lead (PB90)
0.001 mg/L
Reported Dec 31, 2024
Copper (CU90)
1.36 mg/L
Reported Dec 31, 2008
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.001
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.36
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 9
- Health-based
- 0
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | IA5300600 | Unaddressed | Oct 29, 2025 |
| Consumer Confidence Rule | IA5300600 | Unaddressed | Jul 1, 2025 |
| Revised Total Coliform Rule | IA5300600 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| Public Notice | IA5300600 | Unaddressed | Jul 22, 2024 |
| Revised Total Coliform Rule | IA5300600 | Resolved | Jul 1, 2024through Jul 31, 2024 |
| Nitrate | IA5300600 | Resolved | Jul 1, 2024through Jun 30, 2025 |
| Revised Total Coliform Rule | IA5300600 | Resolved | Mar 1, 2024through Mar 31, 2024 |
| Revised Total Coliform Rule | IA5300600 | Resolved | Jan 1, 2024through Jan 31, 2024 |
| Lead and Copper Rule | IA5300947 | Resolved | Dec 1, 2021through Mar 1, 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
Your personalized water action plan
Matched to Anamosa ZIP 52205 using 267 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
267 PPM is 2× 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
Under-Sink Reverse Osmosis System
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
Water questions for Anamosa
Is tap water safe in Anamosa?+
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.
How hard is the water?+
Nearby USGS observations produce an estimate of 267 PPM, or 15.6 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 267 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.