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City water profile

Burlington water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Burlington, Massachusetts.

Median indexed hardness

39PPM

2 indexed ZIPs

Range 37.8–40.4 PPM

State comparison
10 PPM below
State hardness rank
#269 of 302
Matched utilities
3
Active health records
0

City summary

What the indexed records say

Burlington has 2 published ZIP profiles across Middlesex County. The indexed median is 39 PPM, compared with 49 PPM across Massachusetts.

Among the 302 Massachusettscities with an indexed median, Burlington ranks #269from highest to lowest. Across all 328 state ZIP profiles, available estimates run from 24.3to 128 PPM.

The 37.8–40.4 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
2.3 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 Burlington

Open a ZIP for site-level provenance and measurements.

ZIP code

01730

Soft

37.8 PPM

Nearest site
2.3 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

01803

Soft

40.4 PPM

Nearest site
2.2 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Bedford Water Dept.

PWSID MA3023000

Surface water
System population served
14,955
Last reported
Jun 22, 2026

EPA SDWIS explicitly lists this ZIP in the system's served geography.

Bedford Va Hospital (rogers Mem. Hosp.)

PWSID MA3023001

Surface water
System population served
177
Last reported
Jun 22, 2026

EPA SDWIS explicitly lists this ZIP in the system's served geography.

Burlington Water Dept

PWSID MA3048000

Surface water
System population served
25,864
Last reported
Jun 22, 2026

EPA SDWIS explicitly lists this ZIP in the system's served geography.

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
NitriteMA3048000Jul 1, 2023Archived
NitrateMA3048000Jul 1, 2023Archived

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 Burlington

Is the water hard?

The indexed city median is 39 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.