Public water system record
Locust Valley WD
Serves Mill Neck, Lattingtown, Matinecock and 2 more places, Nassau County, NY · 7,500 people served
Federal records show no health-based violations and no monitoring or reporting issues for Locust Valley WD in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Locust Valley WD draws water from 6 wells (2 of them for emergency, seasonal or other part-time use).
- Record on file since 2001, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2,483 service lines.
Check whether Locust Valley WD serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 2001
EPA's records for Locust Valley WD go back to 2001. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 2 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2004, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Dec 1, 2001 | Resolved |
Where the water comes from
Locust Valley WD draws water from 6 wells (2 of them for emergency, seasonal or other part-time use).
Annual water quality report
Locust Valley WD must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New York.
Certified drinking water labs by state EPA guidance for private wells