Public water system record
Timberline MHP
Serves Show Low, Navajo County, AZ · 350 people served
Federal records show 1 health-based violation and 13 monitoring/reporting issues for Timberline MHP in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 13
Key facts
- Timberline MHP draws water from 1 well.
- Record on file since 1980, with 0 health-based violations before October 19, 2016.
Check whether Timberline MHP 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Nov 19, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Active |
|
Public Notice
OTHER
|
Dec 19, 2024 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Aug 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Aug 1, 2021 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 1, 2018 | Resolved |
Full record since 1980
EPA's records for Timberline MHP go back to 1980. Before October 19, 2016 they list no health-based violations and 26 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 17 |
| 2000s | 0 | 7 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 1 | 11 |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Timberline MHP draws water from 1 well.
Annual water quality report
Timberline MHP 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 Timberline MHP 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 Arizona.
Certified drinking water labs by state EPA guidance for private wells