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City water profile

Manchester water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Manchester, Connecticut.

Median indexed hardness

45PPM

2 indexed ZIPs

Range 44.7–46.1 PPM

State comparison
8 PPM below
State hardness rank
#40 of 52
Matched utilities
4
Active health records
0

City summary

What the indexed records say

Manchester has 2 published ZIP profiles across Hartford County. The indexed median is 45 PPM, compared with 53 PPM across Connecticut.

Among the 52 Connecticutcities with an indexed median, Manchester ranks #40from highest to lowest. Across all 98 state ZIP profiles, available estimates run from 42.8to 114 PPM.

The 44.7–46.1 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft2 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
3.7 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jan 4, 2016 to Jun 8, 2026.

ZIP directory

Water reports in Manchester

Open a ZIP for site-level provenance and measurements.

ZIP code

06040

Soft

44.7 PPM

Nearest site
3.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

06042

Soft

46.1 PPM

Nearest site
3.7 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Metropolitan District Commission

PWSID CT0640011

Surface water
System population served
390,887
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Ctwc - Northern Reg-Western System

PWSID CT0473011

Surface water
System population served
101,313
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Manchester Water Department

PWSID CT0770021

Surface water
System population served
51,198
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Ctwc - Redwood Farms Division

PWSID CT0770041

Groundwater
System population served
424
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Interim Enhanced Surface Water Treatment RuleCT0640011Jun 1, 2025Resolved
Public NoticeCT0473011Dec 14, 2024Resolved
CARBON, TOTALCT0770021Nov 1, 2024Resolved
CARBON, TOTALCT0770021Nov 1, 2024Resolved
Consumer Confidence RuleCT0770021Aug 10, 2023Resolved
Public NoticeCT0473011Jun 8, 2018Unaddressed

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Manchester

Is the water hard?

The indexed city median is 45 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.