Public water system record
Sleepy Hollow Lake Water Co.
Serves Sleepy Hollow Lake and Athens, Greene County, NY · 2,000 people served
Federal records show 9 health-based violations and 2 monitoring/reporting issues for Sleepy Hollow Lake Water Co. in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 9
- Resolved
- 9
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Sleepy Hollow Lake Water Co. draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 91.2 µg/L, federal limit 80 µg/L (1.1 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by EPA, November 2017.
- Record on file since 1993, with 21 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 880 service lines.
Check whether Sleepy Hollow Lake Water Co. 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81.4 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Jul 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.7 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91.2 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 60.9 µg/L, federal limit 60 µg/L (at or just above the limit)
|
220 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 80.9 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81.4 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Jul 1, 2017 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64.4 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
220 | Jul 1, 2017 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64.1 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
220 | Apr 1, 2017 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 60.54 µg/L, federal limit 60 µg/L (at or just above the limit)
|
220 | Jan 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2023 | Resolved |
Full record since 1993
EPA's records for Sleepy Hollow Lake Water Co. go back to 1993. Before October 19, 2016 they list 21 health-based violations (20 resolved, 1 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 2 |
| 2000s | 3 | 0 |
| 2010 to October 18, 2016 | 16 | 1 |
| October 19, 2016 to 2019 | 9 | 0 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2016, Resolved.
Show all 21 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 96.6 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 97.9 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 99.2 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100.48 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Jul 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88.7 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Apr 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.8 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85.2 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83.4 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Jul 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 99.2 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jul 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89.35 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Apr 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.4 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jan 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84.1 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92.1 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jan 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 91.7 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 90.4 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Jul 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.4 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Apr 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 75.5 µg/L, federal limit 60 µg/L (1.3 times the limit)
|
Apr 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 74.75 µg/L, federal limit 60 µg/L (1.2 times the limit)
|
Jan 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 64.8 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
Oct 1, 2004 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1995 | Archived |
Enforcement actions
EPA took 3 formal enforcement actions against Sleepy Hollow Lake Water Co. between 2015 and 2017. The most recent was a compliance order (no penalty) in November 2017.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 29, 2017 | EPA | Compliance order (no penalty) | 24 violations (24 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Dec 10, 2015 | EPA | Compliance order (no penalty) | 15 violations (15 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Jan 9, 2015 | EPA | Compliance order (no penalty) | 9 violations (9 health-based): Total Trihalomethanes (TTHMs) |
What the violations mean
Total Trihalomethanes (TTHMs)
5 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Haloacetic Acids (HAA5)
4 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Sleepy Hollow Lake Water Co. draws water from 1 surface water intake.
Annual water quality report
Sleepy Hollow Lake Water Co. 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