Public water system record
Ola Waterworks
Serves an area of Yell County, AR that includes Ola · 1,204 people served
Federal records show 6 health-based violations and 3 monitoring/reporting issues for Ola Waterworks 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.
System profile
- Health-based violations, last 10 years
- 6
- Resolved
- 1
- Unresolved
- 0
- Archived by EPA
- 5
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Ola Waterworks draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 88 µg/L, federal limit 80 µg/L (1.1 times the limit), 2023.
- Most recent formal enforcement: administrative penalty by Arkansas, December 2024.
- Record on file since 1990, with 23 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 420 unknown out of 420 service lines.
Check whether Ola Waterworks 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 83 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
|
220 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
220 | Jul 1, 2023 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Dec 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2005 | Active |
Full record since 1990
EPA's records for Ola Waterworks go back to 1990. Before October 19, 2016 they list 23 health-based violations (19 resolved, 4 archived by EPA without a recorded fix) and 27 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 10 |
| 2000s | 15 | 16 |
| 2010 to October 18, 2016 | 4 | 1 |
| 2020s | 6 | 2 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began April 2016, Resolved.
Show all 23 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 88 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 92 µg/L, federal limit 80 µg/L (1.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Oct 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 82 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Jan 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
|
Jul 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jul 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Apr 1, 2007 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
Jan 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Jan 1, 2007 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2006 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2006 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2005 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Oct 1, 2004 | Archived |
|
Lead and Copper Rule
Treatment technique failure
|
Jul 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1993 | Archived |
|
Lead and Copper Rule
Treatment technique failure
|
Mar 25, 1993 | Resolved |
Enforcement actions
Arkansas regulators took 6 formal enforcement actions against Ola Waterworks between 2005 and 2024. The most recent was an administrative penalty in December 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 2, 2024 | Arkansas | Administrative penalty | 6 violations (6 health-based): Total Trihalomethanes (TTHMs) |
| Sep 23, 2024 | Arkansas | Compliance order (no penalty) | 3 violations (2 health-based): Total Trihalomethanes (TTHMs), Public Notice |
| Aug 30, 2016 | Arkansas | Administrative penalty | 3 violations (3 health-based): Total Trihalomethanes (TTHMs) |
| May 10, 2016 | Arkansas | Compliance order (no penalty) | 2 violations (2 health-based): Total Trihalomethanes (TTHMs) |
| Oct 26, 2006 | Arkansas | Consent decree or court judgment | 17 violations (6 health-based): Interim Enhanced Surface Water Treatment Rule, Total Coliform, Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Surface Water Treatment Rule |
| Sep 27, 2005 | Arkansas | Compliance order (no penalty) | 7 violations: Interim Enhanced Surface Water Treatment Rule |
What the violations mean
Total Trihalomethanes (TTHMs)
6 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Ola Waterworks draws water from 1 surface water intake. It also has an emergency connection to Danville Waterworks. 1 other community water system buys water from Ola Waterworks.
Emergency or part-time connections to
- Danville Waterworks Danville, AR
Community systems that buy water from it
- Casa Water Dept Casa, AR
Annual water quality report
Ola Waterworks 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 Arkansas.
Certified drinking water labs by state EPA guidance for private wells