Public water system record
Walnut Ridge Waterworks
Serves Walnut Ridge, Lawrence County, AR · 5,823 people served
Federal records show 1 health-based violation and 4 monitoring/reporting issues for Walnut Ridge Waterworks in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Walnut Ridge Waterworks buys its water from Neapwa.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 63 µg/L, federal limit 60 µg/L (1.1 times the limit), 2019.
- Record on file since 1991, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 762 unknown out of 2,460 service lines.
Check whether Walnut Ridge 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 63 µg/L, federal limit 60 µg/L (1.1 times the limit)
|
220 | Oct 1, 2019 | 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 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
Full record since 1991
EPA's records for Walnut Ridge Waterworks go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 2 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 0 | 4 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 1991, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1991 | Archived |
What the violations mean
Haloacetic Acids (HAA5)
1 incidentHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Walnut Ridge Waterworks buys its water from Neapwa. It lists no wells or intakes of its own. It also has an emergency connection to Hoxie Water Department. 1 other community water system buys water from Walnut Ridge Waterworks. 1 other public water system has a part-time connection to Walnut Ridge Waterworks.
Buys water from
- Neapwa Pocahontas, AR
Emergency or part-time connections to
- Hoxie Water Department Hoxie, AR
Community systems that buy water from it
- Lawrence Co Reg Water Dist Pocahontas, AR
Annual water quality report
Walnut Ridge 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