31 GRIST MILL RD
PWSID: CT0419221 · Old Lyme, CT · Serves 30 people
According to EPA Safe Drinking Water Information System (SDWIS), 31 GRIST MILL RD (PWSID CT0419221) in Old Lyme, CT is listed as a CWS water system covering about 30 people. The same extract lists 18 health-based violation records spanning 2015-2024. Those 18 health-based rows for 31 GRIST MILL RD cover contaminants such as Revised Total Coliform Rule, Coliform (TCR), Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
31 GRIST MILL RD has 18 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 4 distinct EPA contaminant codes appear in this system's record, including Revised Total Coliform Rule, Coliform (TCR), Groundwater Rule. Recorded violations span 2015–2024. Day-to-day primacy enforcement for this system runs through the Connecticut drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Connecticut state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- CT0419221
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Old Lyme, CT
- Population Served
- 30
- Health Violations
- Yes (18)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 9 | 9 |
| Coliform (TCR) | 6 | 6 |
| Groundwater Rule | 2 | 2 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (18)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Groundwater Rule | Yes | Feb 8, 2020 |
| Groundwater Rule | Yes | Feb 8, 2020 |
| Revised Total Coliform Rule | Yes | Jan 1, 2019 |
| Revised Total Coliform Rule | Yes | Jan 1, 2019 |
| Revised Total Coliform Rule | Yes | Jan 1, 2019 |
| Revised Total Coliform Rule | Yes | Oct 1, 2018 |
| Revised Total Coliform Rule | Yes | Oct 1, 2018 |
| Revised Total Coliform Rule | Yes | Nov 24, 2017 |
| Revised Total Coliform Rule | Yes | Nov 24, 2017 |
| Revised Total Coliform Rule | Yes | May 28, 2017 |
| Revised Total Coliform Rule | Yes | May 28, 2017 |
| Coliform (TCR) | Yes | Nov 1, 2015 |
| Coliform (TCR) | Yes | Nov 1, 2015 |
| Coliform (TCR) | Yes | Aug 1, 2015 |
| Coliform (TCR) | Yes | Aug 1, 2015 |
| Coliform (TCR) | Yes | Jul 1, 2015 |
| Coliform (TCR) | Yes | Jul 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for 31 GRIST MILL RD?
How many people does 31 GRIST MILL RD serve?
What violations does 31 GRIST MILL RD have?
What contaminants have been found in 31 GRIST MILL RD water?
Compare beyond Connecticut
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest 31 GRIST MILL RD on cumulative violation count (18) and EPA-reported population served (30). Violation-count peers include Jicarilla Dulce, WHITE SHIELD WATER TREATMENT PLANT, SAND POINT WATER SYSTEM.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
31 GRIST MILL RD (CT0419221) is drawn from EPA SDWIS. Nearby county systems in this extract include NORWICH PUBLIC UTILITIES; Mohegan Tribal Utility Authority; GROTON UTILITIES; Mashantucket Pequot Water System. Health-based rows (18 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.