Public water system record
City of Lake Havasu
Serves Lake Havasu City, Mohave County, AZ · 54,610 people served
Federal records show no health-based violations and 10 monitoring/reporting issues for City of Lake Havasu 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
- 10
Key facts
- City of Lake Havasu draws water from 11 wells (5 of them for emergency, seasonal or other part-time use).
- Record on file since 1978, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 40,199 service lines.
Check whether City of Lake Havasu 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 |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jun 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2018 | Resolved |
Full record since 1978
EPA's records for City of Lake Havasu go back to 1978. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 280 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 6 |
| 1980s | 0 | 11 |
| 1990s | 1 | 4 |
| 2000s | 0 | 249 |
| 2010 to October 18, 2016 | 2 | 10 |
| October 19, 2016 to 2019 | 0 | 5 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2014, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1998 | Resolved |
Where the water comes from
City of Lake Havasu draws water from 11 wells (5 of them for emergency, seasonal or other part-time use). 1 other community water system buys water from City of Lake Havasu.
Community systems that buy water from it
- Horizon Six DWID Kingman, AZ
Annual water quality report
City of Lake Havasu 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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