Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Middletown, CT 06457
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Middlesex County.
1 active health-based record(s) across possible systems
- Largest possible serving system
- Middletown Water Department
- Source water
- Surface water
- County
- Middlesex County
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
Review needed
1 active health-based record
Measurements by utility
Each result belongs to a specific system.
Utility match
4 systems
Serves 41,019 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
Middletown Water Department
CT0830011 · Surface water · 41,019 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Aug 10, 2025 to Aug 28, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Jul 18, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2023 to Aug 24, 2023 |
Berlin Water Control Commission
CT0070021 · Surface water · 5,128 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
1 reported active health-based record(s) for this system
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (29)
| Rule | Status | Period |
|---|---|---|
| LEAD AND COPPER RULE REVISIONSHealth-based | Unaddressed | Oct 17, 2024 |
| cis-1,2-Dichloroethylene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| DICHLOROMETHANE | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| o-Dichlorobenzene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Carbon tetrachloride | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Tetrachloroethylene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| CHLOROBENZENE | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Vinyl chloride | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,2-Dichloroethane | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,1,1-Trichloroethane | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,1-Dichloroethylene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Total Haloacetic Acids (HAA5) | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,2-Dichloropropane | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Styrene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,1,2-Trichloroethane | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Benzene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| trans-1,2-Dichloroethylene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Toluene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| p-Dichlorobenzene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Ethylbenzene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| TTHM | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Trichloroethylene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| 1,2,4-Trichlorobenzene | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Oct 5, 2022 |
| Gross Alpha, Excl. Radon and U | Resolved | Jan 1, 2022 to Dec 31, 2024 |
| Combined Uranium | Resolved | Jan 1, 2022 to Dec 31, 2024 |
| Combined Radium (-226 and -228) | Resolved | Jan 1, 2022 to Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | Resolved | Jan 1, 2021 to Mar 31, 2021 |
| TTHM | Resolved | Jan 1, 2021 to Mar 31, 2021 |
Portland Water Department
CT1130011 · Surface water · 5,010 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Dec 30, 2025 to Mar 16, 2026 |
| Lead and Copper Rule | Resolved | Dec 30, 2022 to Feb 10, 2023 |
Connecticut Valley Hospital
CT0830021 · Surface water · 2,928 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (4)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Jul 15, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Aug 7, 2024 |
| Consumer Confidence Rule | Resolved | Aug 10, 2023 to Aug 30, 2023 |
| Consumer Confidence Rule | Resolved | Jul 1, 2023 to Jul 6, 2023 |
Hardness meter
What does nearby environmental evidence show?
64.3
PPM as CaCO₃
Moderately Hard
PPM
64.3
GPG
3.8
Regional environmental evidence
USGS hardness classification scale
64.3 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
64.3
mg/L as CaCO₃ equivalent
Grains per gallon
3.8
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
15
Nearest site
5.3 mi
Observation range
May 9, 2016–Jun 1, 2026
Regional evidence confidence
High
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: MATTABESSET RIVER AT ROUTE 372 AT EAST BERLIN (Stream).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 06457 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Middletown median
64 PPM
About the same2 indexed ZIP readings · Range 64.3–64.3 PPM
Connecticut median
89 PPM
25 PPM lower98 indexed ZIP readings · Range 15.8–254 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
An active health-based record is present. Follow the utility's current notice and public-health instructions.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Nearby indexed reports
More local profiles in Middletown
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Middletown
Is tap water safe in Middletown?+
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.