Arsenic in Massachusetts Well Water

EPA Data 2025 · Risk Level: Moderate

Avg Level

2.671 ppb

EPA Limit

10 ppb

% Above Limit

9.1%

Risk Level

moderate

Live DataLast updated: April 4, 2026·Source: EPA SDWIS & USGS

Water Quality Details

Contaminant	Arsenic
Category	chemical
Average Level	2.671 ppb
Maximum Level	7.454 ppb
EPA Limit (MCL)	10 ppb
% Wells Above Limit	9.1%
Affected Wells	38,220
Testing Cost	$47
Treatment Cost	$2,999
vs National Avg	-1.572 ppb (-37.1%)

Massachusetts Well Water Overview

Well Users

420,000

% on Well Water

14.2%

Quality Score

79/100

Highest Risk States for Arsenic

#1Iowa17.4% above limit #2Georgia15.8% above limit #3Missouri15.8% above limit #4Alabama15.4% above limit #5Colorado14.0% above limit

Similar Water Quality Reports

PFAS (Forever Chemicals) in New Hampshire Well Waterlow Lead in Pennsylvania Well Watermoderate PFAS (Forever Chemicals) in Kansas Well Waterlow Fluoride in Alaska Well Watermoderate PFAS (Forever Chemicals) in New Mexico Well Watermoderate

Explore More

All contaminants in Massachusetts Arsenic in all states Home prices near you Farmland water rights ZIP code data

EPA SDWIS & USGS

📊

WellWaterPeek Research TeamData Specialists

Our team analyzes data from EPA SDWIS & USGS to deliver accurate, up-to-date information. All data is verified and cross-referenced with official sources.

✓ EPA SDWIS & USGS✓ Updated 2025

Frequently Asked Questions

Is arsenic a problem in Massachusetts well water?

In Massachusetts, arsenic levels average 2.671 ppb, with a maximum recorded level of 7.454 ppb. The EPA limit is 10 ppb. Currently 9.1% of tested wells exceed this limit, affecting approximately 38,220 wells.

How much does it cost to test for arsenic in Massachusetts?

Testing for arsenic in Massachusetts typically costs around $47. If treatment is needed, water treatment systems for arsenic cost approximately $2,999.

What is the risk level of arsenic in Massachusetts well water?

The risk level for arsenic in Massachusetts is rated as moderate. The state average of 2.671 ppb is 37.1% below the national average of 4.243 ppb.

Explore the DataPeek Network

VocabWize Vocablibre WortWize KalimaWize DicionarioWize KotobaPeek SalaryBycity NetpayPeek WagePeek CostBycity FairrentWize PropertytaxPeek