Community Water System · PWS MA1289000
Sunderland Water District
Operator location Sunderland, Massachusetts - 6% of 50 violations are health-based (middle-third health share (≤ 23%)); groundwater source; 3,190 served per SDWIS.
- 3,190
- People served (this PWS)
- 50
- EPA violations (this PWS)
- 3
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Sunderland Water District standing, mid SDWIS violation third
6% of 50 recorded violations are health-based - middle-third health share (≤ 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 6% is middle-third health share (≤ 23%). Population rank #10,196 of 29,740 among systems serving 500+.
The verdict
Sunderland Water District lands in the middle third by violation volume (50), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is mid-pack at 3,190 (mid served population (≤ 3,309)). Health-based share is 6% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #10,196 of 29,740
- Population · /systems
- #266 of 418
- Population · MA
- 50
- Total EPA violations on record
- 6%
- 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
- Community
- Owner Type
- Local
- Connections
- 995
- County
- Franklin
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 34
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 3 | 2014 |
| Consumer Confidence Rule | Other | 2 | 2001 |
| Arsenic | MR | 1 | 2001 |
| Barium | MR | 1 | 2001 |
| Cadmium | MR | 1 | 2001 |
| Fluoride | MR | 1 | 2001 |
| Nitrate | MR | 1 | 2001 |
| Antimony, Total | MR | 1 | 2001 |
| Beryllium, Total | MR | 1 | 2001 |
| Thallium, Total | MR | 1 | 2001 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2001 |
| cis-1,2-Dichloroethylene | MR | 1 | 2001 |
| Xylenes, Total | MR | 1 | 2001 |
| DICHLOROMETHANE | MR | 1 | 2001 |
| p-Dichlorobenzene | MR | 1 | 2001 |
| Vinyl chloride | MR | 1 | 2001 |
| 1,2-Dichloroethane | MR | 1 | 2001 |
| 1,2-Dichloropropane | MR | 1 | 2001 |
| Trichloroethylene | MR | 1 | 2001 |
| 1,1,2-Trichloroethane | MR | 1 | 2001 |
| Tetrachloroethylene | MR | 1 | 2001 |
| CHLOROBENZENE | MR | 1 | 2001 |
| Benzene | MR | 1 | 2001 |
| Ethylbenzene | MR | 1 | 2001 |
| Styrene | MR | 1 | 2001 |
| Carbon tetrachloride | MR | 1 | 2001 |
| Selenium | MR | 1 | 2001 |
| o-Dichlorobenzene | MR | 1 | 2001 |
| 1,1,1-Trichloroethane | MR | 1 | 2001 |
| CYANIDE | MR | 1 | 2001 |
Violation Count vs. the National Corpus
Sunderland Water District has 50 recorded EPA violations, 56% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 43% carry more. 6% of this system's own violations are health-based (3 of 50), and it ranks #10,196 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)
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
Health-based violations on Sunderland Water District
3 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MA1289000.
Sources: EPA SDWIS · MassDEP, Drinking Water Program
Nationwide peers
50 violations · 3,190 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Sunderland Water District
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.