Hardness
Moderately Hard
85.3 PPM · 5 GPG
Local water dashboard
Official source aggregationWater quality in Ridgefield, CT 06877
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Fairfield County.
No active health-based violation reported
- Primary matched system
- Aquarion-Eastern Fairfield County
- Source water
- Surface water + Groundwater
- County
- Fairfield 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
0.0028 mg/L
19% of action level
Utility match
8 systems
Serves 351,756 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
85.3 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
85.3
mg/L as CaCO₃ equivalent
Grains per gallon
5
1 GPG ≈ 17.1 PPM
What this means at home
At 85.3 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
151
Nearest site
5.7 mi
Observation range
Jan 4, 2016–Jun 3, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: SAUGATUCK RIVER NEAR REDDING, CT (Stream).USGS source documentation ↗
Regional context
Is 06877 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Ridgefield median
85 PPM
About the same1 indexed ZIP readings · Range 85.3–85.3 PPM
Connecticut median
53 PPM
32 PPM higher98 indexed ZIP readings · Range 42.8–114 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 pass
Lead (PB90)
0.0028 mg/L
Reported Dec 31, 2027
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.
Lead (90th percentile)
Measured in mg/L
Local 0.0028
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 48
- Health-based
- 2
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Lead and Copper Rule | CT1180091 | Resolved | Dec 30, 2025through Jan 28, 2026 |
| Consumer Confidence Rule | CT1180091 | Resolved | Aug 10, 2025through Aug 19, 2025 |
| Consumer Confidence Rule | CT1180091 | Resolved | Jul 1, 2025through Aug 11, 2025 |
| LEAD AND COPPER RULE REVISIONSHealth-based | CT1180091 | Resolved | Oct 17, 2024through Feb 17, 2026 |
| LEAD AND COPPER RULE REVISIONS | CT1180091 | Resolved | Oct 17, 2024through Feb 17, 2026 |
| Consumer Confidence Rule | CT1180091 | Resolved | Aug 10, 2024through Aug 19, 2025 |
| Consumer Confidence Rule | CT1180091 | Resolved | Jul 1, 2024through Jul 3, 2025 |
| Consumer Confidence Rule | CT1180091 | Resolved | Jul 1, 2023through Jul 23, 2023 |
| Nitrate | CT1180091 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| Revised Total Coliform Rule | CT1180091 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| Consumer Confidence Rule | CT1180091 | Resolved | Aug 10, 2022through May 30, 2023 |
| Consumer Confidence Rule | CT1180091 | Resolved | Jul 1, 2022through Dec 22, 2022 |
| Lead and Copper Rule | CT1180011 | Resolved | Dec 30, 2021through Jan 21, 2022 |
| Lead and Copper Rule | CT1180021 | Resolved | Dec 30, 2021through Jan 21, 2022 |
| Lead and Copper Rule | CT1180041 | Resolved | Dec 30, 2021through Jan 21, 2022 |
| Lead and Copper Rule | CT1189171 | Resolved | Dec 30, 2021through Jan 21, 2022 |
| Lead and Copper Rule | CT1189161 | Resolved | Dec 30, 2021through Jan 21, 2022 |
| Total Haloacetic Acids (HAA5) | CT0340011 | Resolved | Oct 1, 2021through Dec 31, 2021 |
| Consumer Confidence Rule | CT1180091 | Resolved | Aug 10, 2021through May 30, 2023 |
| Interim Enhanced Surface Water Treatment RuleHealth-based | CT0340011 | Resolved | Jul 1, 2021through Jul 31, 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
Your personalized water action plan
Matched to Ridgefield ZIP 06877 using 85.3 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
Start with an independent water test
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.
Frequently asked
Water questions for Ridgefield
Is tap water safe in Ridgefield?+
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 85.3 PPM, or 5 grains per gallon, classified as moderately hard. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.