Public water system record
Chui Chu
Serves Chuichu and Arizona City, Pinal County, AZ · 420 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Chui Chu in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Chui Chu draws water from 4 wells.
- Record on file since 2000, with 3 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 1 unknown out of 178 service lines.
Check whether Chui Chu 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2025 | Active |
Full record since 2000
EPA's records for Chui Chu go back to 2000. Before October 20, 2016 they list 3 health-based violations (3 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 3 | 2 |
| 2010 to October 19, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 20, 2016: Total Coliform, began October 2002, Resolved.
Show all 3 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2000 | Resolved |
Where the water comes from
Chui Chu draws water from 4 wells.
Annual water quality report
Chui Chu 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 Chui Chu 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 EPA Region 9.
Certified drinking water labs by state EPA guidance for private wells