Public water system record
Timberlake
Serves an area of Johnson County, IA that includes Swisher · 52 people served
Federal records show no health-based violations and 7 monitoring/reporting issues for Timberlake 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
- 7
Key facts
- Timberlake draws water from 1 well.
- Most recent formal enforcement: signed compliance agreement by Iowa, September 2010.
- Record on file since 1980, with 18 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 20 service lines.
Check whether Timberlake 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.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Feb 4, 2025 | Resolved |
|
Public Notice
OTHER
|
Feb 4, 2025 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Nitrite
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
Full record since 1980
EPA's records for Timberlake go back to 1980. Before October 19, 2016 they list 18 health-based violations (16 resolved, 2 archived by EPA without a recorded fix) and 17 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 12 |
| 1990s | 7 | 1 |
| 2000s | 3 | 3 |
| 2010 to October 18, 2016 | 7 | 1 |
| 2020s | 0 | 7 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2011, Resolved.
Show all 18 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1992 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1990 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1988 | Resolved |
Enforcement actions
Iowa regulators took 4 formal enforcement actions against Timberlake between 1989 and 2010, filed as 21 records in EPA's data. The most recent was a signed compliance agreement in September 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 7, 2010 | Iowa | Signed compliance agreement | 8 violations (7 health-based): Total Coliform, Miscellaneous Other Rules |
| Jun 8, 1992 | Iowa | Compliance order with a penalty | 2 violations: Gross Alpha, Excl. Radon and U |
| Oct 30, 1989 | Iowa | Compliance order (no penalty) | 17 violations: Arsenic, Cadmium, Fluoride, Mercury, Nitrate |
| Oct 30, 1989 | Iowa | Administrative penalty | 8 violations: Arsenic, Cadmium, Fluoride, Mercury, Nitrate |
Where the water comes from
Timberlake draws water from 1 well.
Annual water quality report
Timberlake 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Timberlake for a copy.
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 Iowa.
Certified drinking water labs by state EPA guidance for private wells