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Public water system record

Wallkill/Shawangunk Correction

Serves an area of Ulster County, NY · 1,200 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Wallkill/Shawangunk Correction in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.

  • NY5510590
  • WALLKILL
  • NY
  • 1,200 served

System profile

Source water Groundwater under direct influence
ZIP 12589
EPA system ID NY5510590

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
0
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Wallkill/Shawangunk Correction draws water from 5 wells (2 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.08373 mg/L, federal limit 0.08 mg/L (at or just above the limit), 2025.
  • Most recent formal enforcement: signed compliance agreement by New York, June 2009.
  • Record on file since 1993, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 15 unknown out of 73 service lines.

Check whether Wallkill/Shawangunk Correction serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.08373 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No

Full record since 1993

EPA's records for Wallkill/Shawangunk Correction go back to 1993. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 149 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 101
2000s 3 48
2020s 1 0

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began September 2008, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 2008 Resolved
Lead
Treatment technique failure
 Jul 1, 2005 Resolved
Lead
Treatment technique failure
 Jan 1, 2003 Resolved

Enforcement actions

New York regulators took 1 formal enforcement action against Wallkill/Shawangunk Correction in 2009. The most recent was a signed compliance agreement in June 2009.

Date By Action Violations covered
Jun 14, 2009 New York Signed compliance agreement 1 violation (1 health-based): Surface Water Treatment Rule

What the violations mean

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Wallkill/Shawangunk Correction draws water from 5 wells (2 of them for emergency, seasonal or other part-time use). It also has an emergency connection to New York City System.

Emergency or part-time connections to

Annual water quality report

Wallkill/Shawangunk Correction 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