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Non-Transient Non-Community Water System · PWS MA2034010

Nashoba Regional High School

Operator location Bolton, Massachusetts - 0% of 134 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 1,057 served per SDWIS.

1,057
People served (this PWS)
134
EPA violations (this PWS)
0
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Nashoba Regional High School standing, high SDWIS violation third

0% of 134 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #18,928 of 29,740 among systems serving 500+.

The verdict

Nashoba Regional High School sits in the upper third of the sitemap cohort by violation count (134), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,057 (mid served population (≤ 3,309)). Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.

#18,928 of 29,740
Population · /systems
#326 of 418
Population · MA
134
Total EPA violations on record
0%
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
Worcester
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
124
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 13 2023
Revised Total Coliform Rule RPT 2 2018
Nitrate MR 2 1995
BHC-GAMMA MR 2 1997
Diquat MR 2 1997
Endothall MR 2 1997
Di(2-ethylhexyl) adipate MR 2 1997
Aldicarb sulfoxide MR 2 1997
Hexachlorocyclopentadiene MR 2 1997
Aldicarb sulfone MR 2 1997
Carbofuran MR 2 1997
Aldicarb MR 2 1997
Heptachlor epoxide MR 2 1997
2,4,5-TP MR 2 1997
HEXACHLOROBENZENE MR 2 1997
Pentachlorophenol MR 2 1997
1,2-DIBROMO-3-CHLOROPROPANE MR 2 1997
ETHYLENE DIBROMIDE MR 2 1997
Xylenes, Total MR 2 1997
Chlordane MR 2 1997
DICHLOROMETHANE MR 2 1997
o-Dichlorobenzene MR 2 1997
p-Dichlorobenzene MR 2 1997
Vinyl chloride MR 2 1997
trans-1,2-Dichloroethylene MR 2 1997
1,1,1-Trichloroethane MR 2 1997
Carbon tetrachloride MR 2 1997
1,2-Dichloropropane MR 2 1997
1,1,2-Trichloroethane MR 2 1997
Tetrachloroethylene MR 2 1997

Violation Count vs. the National Corpus

Nashoba Regional High School has 134 recorded EPA violations, 79% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 21% carry more. 0% of this system's own violations are health-based (0 of 134), and it ranks #18,928 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)

134 Higher than most more violations than 79% 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

Health-based violations on Nashoba Regional High School

0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MA2034010.

Sources: EPA SDWIS · MassDEP, Drinking Water Program

Nationwide peers

134 violations · 1,057 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 Nashoba Regional 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