Community Water System · PWS ME0090410
Great Salt Bay Sanitary District
Operator location Damariscotta, Maine - 57% of 226 violations are health-based (upper-third health share (> 23%)); surface water source; 2,143 served per SDWIS.
- 2,143
- People served (this PWS)
- 226
- EPA violations (this PWS)
- 129
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Great Salt Bay Sanitary District standing, high SDWIS violation third
57% of 226 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 57% is upper-third health share (> 23%). Population rank #13,043 of 29,740 among systems serving 500+.
The verdict
Great Salt Bay Sanitary District sits in the upper third of the sitemap cohort by violation count (226), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,143 (mid served population (≤ 3,309)). Health-based share is 57% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #13,043 of 29,740
- Population · /systems
- #56 of 193
- Population · ME
- 226
- Total EPA violations on record
- 57%
- 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
- 857
- County
- Lincoln
- School/Daycare
- No
- MCL Violations
- 122
- Monitoring Violations
- 96
- Treatment Tech Violations
- 7
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 98 | 2010 |
| Fluoride | MR | 56 | 1999 |
| Coliform (TCR) | MR | 16 | 2015 |
| TTHM | MCL | 13 | 2010 |
| Coliform (TCR) | MCL | 11 | 2014 |
| Lead and Copper Rule | TT | 5 | 2021 |
| TTHM | MR | 3 | 2021 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2021 |
| Thallium, Total | MR | 3 | 1993 |
| Antimony, Total | MR | 3 | 1993 |
| Nickel | MR | 3 | 1993 |
| CYANIDE | MR | 3 | 1993 |
| Beryllium, Total | MR | 3 | 1993 |
| Surface Water Treatment Rule | TT | 2 | 2006 |
| Lead and Copper Rule | MR | 2 | 2023 |
| Combined Radium (-226 and -228) | MR | 1 | 2016 |
Violation Count vs. the National Corpus
Great Salt Bay Sanitary District has 226 recorded EPA violations, 87% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 13% carry more. 57% of this system's own violations are health-based (129 of 226), and it ranks #13,043 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)
226 Higher than most more violations than 87% 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 Great Salt Bay Sanitary District
129 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for ME0090410.
Sources: EPA SDWIS
Nationwide peers
226 violations · 2,143 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Great Salt Bay Sanitary District
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Maine compares on the same EPA violation measures. Maine 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.