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City water profile

South Burlington water quality

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

Median indexed hardness

12PPM

2 indexed ZIPs

Range 12.3–12.3 PPM

State comparison
86 PPM below
State hardness rank
#83 of 87
Matched utilities
3
Active health records
0

City summary

What the indexed records say

South Burlington has 2 published ZIP profiles across Chittenden County. The indexed median is 12 PPM, compared with 98 PPM across Vermont.

Among the 87 Vermontcities with an indexed median, South Burlington ranks #83from highest to lowest. Across all 93 state ZIP profiles, available estimates run from 10.5to 176 PPM.

The 12.3–12.3 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
16.5 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jan 5, 2016 to May 31, 2023.

ZIP directory

Water reports in South Burlington

Open a ZIP for site-level provenance and measurements.

ZIP code

05403

Soft

12.3 PPM

Nearest site
16.5 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

05408

Soft

12.3 PPM

Nearest site
13.7 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

South Burlington City Water System

PWSID VT0005091

Surface water
System population served
19,500
Last reported
Jun 30, 2026

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

South Burlington Fire District

PWSID VT0005090

Groundwater
System population served
250
Last reported
Jun 30, 2026

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

Champlain Water District

PWSID VT0005092

Surface water
System population served
1
Last reported
Jun 30, 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
TTHMVT0005091Jul 1, 2025Archived
Total Haloacetic Acids (HAA5)VT0005091Jul 1, 2025Archived
Consumer Confidence RuleVT0005090Jul 1, 2025Unaddressed
NitrateVT0005090Jul 1, 2024Resolved
NitrateVT0005090Jul 1, 2022Resolved
Gross Alpha, Excl. Radon and UVT0005090Jan 1, 2022Resolved

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 South Burlington

Is the water hard?

The indexed city median is 12 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.