Question 1

Is Northfield Water District water safe to drink?

Accepted Answer

Northfield Water District (PWS ID: MA1217000) has 120 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 800 people using Groundwater sources.

Question 2

How many people does Northfield Water District serve?

Accepted Answer

EPA SDWIS reports that Northfield Water District serves 800 people (this public water system's service population, not the municipal population of Northfield or any other city). It is a Local-owned system using Groundwater water sources with 231 service connections. The operator address is listed in Northfield, Massachusetts.

Question 3

What type of violations does Northfield Water District have?

Accepted Answer

Northfield Water District has 120 total violations: 12 health-based violations (MCL exceedances or treatment failures), 90 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Northfield Water District water?

Accepted Answer

No PFAS testing data is available for Northfield Water District under the EPA's UCMR5 monitoring program.

Question 5

What water source does Northfield Water District use?

Accepted Answer

Northfield Water District uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Question 6

Where does this data come from?

Accepted Answer

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Question 7

Where does Northfield Water District sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Northfield Water District ranks #22,460 of 29,740 by people served, and #353 of 418 in Massachusetts. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Northfield Water District's violation count compare nationally?

Accepted Answer

Northfield Water District has 120 recorded EPA SDWIS violations, fewer than 23% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 77% of that cohort has fewer violations than Northfield Water District. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

Contaminant	Category	Count	Latest
Coliform (TCR)	MCL	8	2012
Coliform (TCR)	MR	6	2006
Lead and Copper Rule	TT	4	2000
Consumer Confidence Rule	Other	4	2016
Nitrate	MR	3	2001
1,2,4-Trichlorobenzene	MR	2	2001
DICHLOROMETHANE	MR	2	2001
p-Dichlorobenzene	MR	2	2001
Vinyl chloride	MR	2	2001
trans-1,2-Dichloroethylene	MR	2	2001
Carbon tetrachloride	MR	2	2001
1,2-Dichloropropane	MR	2	2001
Trichloroethylene	MR	2	2001
Tetrachloroethylene	MR	2	2001
CHLOROBENZENE	MR	2	2001
Toluene	MR	2	2001
Ethylbenzene	MR	2	2001
Styrene	MR	2	2001
1,1-Dichloroethylene	MR	2	2001
1,2-Dichloroethane	MR	2	2001
cis-1,2-Dichloroethylene	MR	2	2001
Xylenes, Total	MR	2	2001
Benzene	MR	2	2001
o-Dichlorobenzene	MR	2	2001
1,1,2-Trichloroethane	MR	2	2001
1,1,1-Trichloroethane	MR	2	2001
Toxaphene	MR	1	2001
Dalapon	MR	1	2001
Diquat	MR	1	2001
Endothall	MR	1	2001

Northfield Water District

Northfield Water District standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Northfield Water District

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints