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Community Water System · PWS MA4318040

Harborside Village

Operator location Wellfleet, Massachusetts - smaller served population (≤ 999) at 165 people served; 60 SDWIS violations on record from groundwater sources.

165
People served (this PWS)
60
EPA violations (this PWS)
2
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Harborside Village standing, mid SDWIS violation third

165 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 3% is middle-third health share (≤ 23%).

The verdict

Harborside Village lands in the middle third by violation volume (60), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (165; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 3% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

60
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
165
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
Community
Owner Type
Private
Connections
83
County
Barnstable
School/Daycare
No
MCL Violations
2
Monitoring Violations
48
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 8 2022
Coliform (TCR) MR 6 2009
1,1-Dichloroethylene MR 2 2009
Trichloroethylene MR 2 2009
1,2-Dichloropropane MR 2 2009
Ethylbenzene MR 2 2009
Styrene MR 2 2009
Tetrachloroethylene MR 2 2009
Toluene MR 2 2009
Xylenes, Total MR 2 2009
DICHLOROMETHANE MR 2 2009
Coliform (TCR) MCL 2 2009
1,2-Dichloroethane MR 2 2009
o-Dichlorobenzene MR 2 2009
p-Dichlorobenzene MR 2 2009
Vinyl chloride MR 2 2009
1,2,4-Trichlorobenzene MR 2 2009
trans-1,2-Dichloroethylene MR 2 2009
Benzene MR 2 2009
Carbon tetrachloride MR 2 2009
1,1,2-Trichloroethane MR 2 2009
1,1,1-Trichloroethane MR 2 2009
CHLOROBENZENE MR 2 2009
cis-1,2-Dichloroethylene MR 2 2009

Violation Count vs. the National Corpus

Harborside Village has 60 recorded EPA violations, 61% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 38% carry more. 3% of this system's own violations are health-based (2 of 60), 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)

60 Around the middle fewer violations than 38% 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 Harborside Village

EPA SDWIS lists 165 people served and 83 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

EPA SDWIS · PWS MA4318040 MA primacy agency

Sources: EPA SDWIS · MassDEP, Drinking Water Program

Nationwide peers

60 violations · 165 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 Harborside Village

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