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States → Massachusetts

Non-Transient Non-Community Water System · PWS MA1120022

2 Allen St Professional Bldg

Operator location Wilbraham, Massachusetts - smaller served population (≤ 999) at 30 people served; 50 SDWIS violations on record from groundwater sources.

30
People served (this PWS)
50
EPA violations (this PWS)
1
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

2 Allen St Professional Bldg standing, mid SDWIS violation third

30 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%).

The verdict

2 Allen St Professional Bldg lands in the middle third by violation volume (50), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (30; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

50
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
30
People served by this PWS (SDWIS)
N/A
PFAS compounds detected (UCMR5)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Hampden
School/Daycare
Yes
MCL Violations
1
Monitoring Violations
46
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 2 2001
Carbon tetrachloride MR 2 2018
Trichloroethylene MR 2 2018
1,1,1-Trichloroethane MR 2 2018
o-Dichlorobenzene MR 2 2018
1,2-Dichloropropane MR 2 2018
Styrene MR 2 2018
Tetrachloroethylene MR 2 2018
Toluene MR 2 2018
1,1,2-Trichloroethane MR 2 2018
trans-1,2-Dichloroethylene MR 2 2018
1,2,4-Trichlorobenzene MR 2 2018
Benzene MR 2 2018
p-Dichlorobenzene MR 2 2018
Xylenes, Total MR 2 2018
1,2-Dichloroethane MR 2 2018
Ethylbenzene MR 2 2018
1,1-Dichloroethylene MR 2 2018
CHLOROBENZENE MR 2 2018
cis-1,2-Dichloroethylene MR 2 2018
Vinyl chloride MR 2 2018
DICHLOROMETHANE MR 2 2018
ETHYLENE DIBROMIDE MR 2 2018
Coliform (TCR) MCL 1 2003

Violation Count vs. the National Corpus

2 Allen St Professional Bldg has 50 recorded EPA violations, 56% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 43% carry more. 2% of this system's own violations are health-based (1 of 50), and it ranks unranked by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

50 Around the middle fewer violations than 43% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

Population served record for 2 Allen St Professional Bldg

EPA SDWIS lists 30 people served and 2 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

EPA SDWIS · PWS MA1120022 MA primacy agency

Sources: EPA SDWIS · MassDEP, Drinking Water Program

Nationwide peers

50 violations · 30 served: nearest cross-state SDWIS matches.

Cross-state systems near this violation count

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

What to do with 2 Allen St Professional Bldg

Use this system's EPA-reported record as a starting filter, not a final verdict.

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater