Non-Transient Non-Community Water System · PWS MA4239017
Plymouth So.elem.sch.
Operator location North Plymouth, Massachusetts - smaller served population (≤ 999) at 950 people served; 41 SDWIS violations on record from groundwater sources.
- 950
- People served (this PWS)
- 41
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Plymouth So.elem.sch. standing, mid SDWIS violation third
950 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 5% is middle-third health share (≤ 23%). Population rank #20,374 of 29,740 among systems serving 500+.
The verdict
Plymouth So.elem.sch. lands in the middle third by violation volume (41), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (950; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 5% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #20,374 of 29,740
- Population · /systems
- #339 of 418
- Population · MA
- 41
- Total EPA violations on record
- 5%
- 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
- 1
- County
- Plymouth
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 30
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 5 | 2015 |
| Revised Total Coliform Rule | RPT | 4 | 2024 |
| Nitrate | MR | 2 | 2002 |
| Revised Total Coliform Rule | TT | 2 | 2022 |
| Revised Total Coliform Rule | MON | 1 | 2024 |
| Ethylbenzene | MR | 1 | 1993 |
| Toluene | MR | 1 | 1993 |
| Benzene | MR | 1 | 1993 |
| CHLOROBENZENE | MR | 1 | 1993 |
| Tetrachloroethylene | MR | 1 | 1993 |
| Carbon tetrachloride | MR | 1 | 1993 |
| 1,2-Dichloroethane | MR | 1 | 1993 |
| 1,1-Dichloroethylene | MR | 1 | 1993 |
| p-Dichlorobenzene | MR | 1 | 1993 |
| o-Dichlorobenzene | MR | 1 | 1993 |
| 1,2,4-Trichlorobenzene | MR | 1 | 1993 |
| Trichloroethylene | MR | 1 | 1993 |
| Xylenes, Total | MR | 1 | 1993 |
| 1,1,1-Trichloroethane | MR | 1 | 1993 |
| 1,2-Dichloropropane | MR | 1 | 1993 |
| Pentachlorophenol | MR | 1 | 2023 |
| 1,1,2-Trichloroethane | MR | 1 | 1993 |
| cis-1,2-Dichloroethylene | MR | 1 | 1993 |
| Styrene | MR | 1 | 1993 |
| DICHLOROMETHANE | MR | 1 | 1993 |
| Vinyl chloride | MR | 1 | 1993 |
| trans-1,2-Dichloroethylene | MR | 1 | 1993 |
Violation Count vs. the National Corpus
Plymouth So.elem.sch. has 41 recorded EPA violations, 51% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 48% carry more. 5% of this system's own violations are health-based (2 of 41), and it ranks #20,374 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)
41 Around the middle fewer violations than 48% 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 Plymouth So.elem.sch.
EPA SDWIS lists 950 people served and 1 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · MassDEP, Drinking Water Program
Nationwide peers
41 violations · 950 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.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Plymouth So.elem.sch.
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Massachusetts compares on the same EPA violation measures. Massachusetts systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.