A92/100
Northampton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 40,000 residents · Pennsylvania
What's In Northampton's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 289.00 µg/L | — | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2024 – June 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
NORTHAMPTON BORO MUNI AUTH
Population Served
40,000
Water Source
Surface Water
System ID
PA3480057
Frequently Asked Questions About Northampton Water
Is Northampton tap water safe to drink?
Northampton, Pennsylvania tap water receives a grade of A (92/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Northampton's water?
Of the 69 contaminants tested in Northampton's water supply, the most notable include chlorate. No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Northampton have any water quality violations?
Yes, Northampton has 5 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MON, Other. None of these are classified as health-based violations.
Do I need a water filter in Northampton?
Northampton water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Northampton's tap water come from?
Northampton's drinking water is sourced from surface water and supplied by NORTHAMPTON BORO MUNI AUTH. The system serves approximately 40,000 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Northampton's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Northampton's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Northampton's water compare to other cities in Pennsylvania?
Northampton's water quality score of 92/100 earns a grade of A, which is considered excellent. This places Northampton among the better-performing water systems in Pennsylvania. Visit our Pennsylvania state page to see how all cities in the state compare.
What should I do if I'm concerned about Northampton's water quality?
If you have concerns about Northampton's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (NORTHAMPTON BORO MUNI AUTH) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.