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Non-Transient Non-Community Water System · PWS MA4239046

Plymouth South High School

Operator location North Plymouth, Massachusetts - upper-third violation load (> 74 violations) with 124 EPA violations; groundwater source; 2,875 served (PWS-level, not municipal population).

2,875
People served (this PWS)
124
EPA violations (this PWS)
2
Health-based (this PWS)
Untested
UCMR5 (this PWS)
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Plymouth South High School standing, high SDWIS violation third

124 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #10,952 of 29,740 among systems serving 500+.

The verdict

Plymouth South High School sits in the upper third of the sitemap cohort by violation count (124), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,875 (mid served population (≤ 3,309)). Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

#10,952 of 29,740
Population · /systems
#276 of 418
Population · MA
124
Total EPA violations on record
2%
Health-based (MCL / treatment failure)

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
Local
Connections
2
County
Plymouth
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
120
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2015
cis-1,2-Dichloroethylene MR 5 2011
DICHLOROMETHANE MR 5 2011
o-Dichlorobenzene MR 5 2011
p-Dichlorobenzene MR 5 2011
Vinyl chloride MR 5 2011
1,2-Dichloroethane MR 5 2011
Carbon tetrachloride MR 5 2011
1,2-Dichloropropane MR 5 2011
Trichloroethylene MR 5 2011
Tetrachloroethylene MR 5 2011
CHLOROBENZENE MR 5 2011
Benzene MR 5 2011
trans-1,2-Dichloroethylene MR 5 2011
Styrene MR 5 2011
Toluene MR 5 2011
Xylenes, Total MR 5 2011
1,1,2-Trichloroethane MR 5 2011
1,2,4-Trichlorobenzene MR 5 2011
1,1,1-Trichloroethane MR 5 2011
Ethylbenzene MR 5 2011
1,1-Dichloroethylene MR 5 2011
Lead and Copper Rule MR 2 1993
Lead and Copper Rule TT 2 1996
Nitrate MR 2 2002

Violation Count vs. the National Corpus

Plymouth South High School has 124 recorded EPA violations, 77% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 22% carry more. 2% of this system's own violations are health-based (2 of 124), and it ranks #10,952 of 29,740 by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

124 Higher than most more violations than 77% 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

SDWIS compliance record for Plymouth South High School

124 violations on record for MA4239046; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.

Sources: EPA SDWIS · MassDEP, Drinking Water Program

Nationwide peers

124 violations · 2,875 served: nearest cross-state SDWIS matches.

Cross-state systems with comparable violation load

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

4 peers

Cross-state systems near this population served

Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).

4 peers

What to do with Plymouth South High School

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