waterbycounty

Barnstable County Water Quality

Barnstable County, Massachusetts

Water Grade

A

Water Score

71.5

Violations

2

State Rank

#4

of 14 (1 = best)

Water Quality Details

Water Quality Grade

A

Based on EPA compliance history and violation data

Water Score

71.5/100

Higher = better quality

Health Violations

2

Health-based violations

Violation Rate

0.3%

Systems with violations

Improve your water quality at home

Berkey filters remove 99.9%+ of contaminants from tap water.

Shop Berkey →

Sponsored

Test your tap water

Tap Score provides professional mail-in water testing.

Get Tested →

Frequently Asked Questions

What is the water quality in Barnstable County, Massachusetts?
Barnstable County, Massachusetts has a water quality grade of A with a score of 71.5/100, based on EPA Safe Drinking Water Information System data. The county has 2 health-based drinking water violations on record.
Are there any water violations in Barnstable County?
Barnstable County has 2 health-based drinking water violations recorded by the EPA. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How does Barnstable County water compare to the Massachusetts average?
Barnstable County's water quality score of 71.5/100 is higher than the Massachusetts state average of 69.1. The average water quality grade across Massachusetts is C, based on data from 14 counties with available water quality data.
Is tap water safe to drink in Barnstable County?
Based on EPA data, Barnstable County has a water quality grade of A (71.5/100). This indicates good to excellent water quality with strong compliance. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Does Barnstable County have clean drinking water?
Barnstable County has 2 health-based drinking water violations according to EPA records. With a water quality score of 71.5/100 and grade A, the county's drinking water has had some compliance issues but continues to be monitored. For the most current safety information, check with your local water utility.
How does Barnstable County rank for water quality in Massachusetts?
Barnstable County ranks #4 out of 14 counties in Massachusetts by water quality score (1 = best). With a score of 71.5/100, it falls in the top third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.

Counties with Similar Water Quality

Essex County

Massachusetts

A

70.4

Water score

Middlesex County

Massachusetts

B

68.0

Water score

Hampshire County

Massachusetts

B

67.5

Water score

Data Source

Water quality data sourced from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

Explore more data for Barnstable County

Property TaxCost of LivingCrime RateIncomeHealthSchoolsDisaster RiskWeatherCounty Score