Southwestern Research Station
PWSID: AZ0402357
System Details
| Population Served | 40 |
| Service Connections | 14 |
| Water Source | Groundwater |
| System Type | Non-Transient Non-Community |
| Owner | Local Government |
| Status | Active |
| City | Portal |
| Zip Code | 85632 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.1100 mg/L | 0.015 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0060 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0008 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-09-12 | | Open |
Violation History (74 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-06-24 | Yes | Returned to Compliance |
| | 2025-05-26 | Yes | Returned to Compliance |
| | 2024-08-09 | Major | Returned to Compliance |
| | 2024-08-09 | Major | Returned to Compliance |
| | 2024-08-01 | | Returned to Compliance |
| | 2024-08-01 | | Returned to Compliance |
| | 2024-04-01 | | Returned to Compliance |
| | 2024-04-01 | | Returned to Compliance |
| | 2024-04-01 | Yes | Returned to Compliance |
| | 2024-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | | Returned to Compliance |
| | 2022-04-01 | | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2020-10-01 | | Returned to Compliance |
| | 2020-01-01 | | Returned to Compliance |
| | 2019-04-01 | Yes | Returned to Compliance |
| | 2018-10-01 | | Returned to Compliance |
| | 2018-10-01 | Major | Returned to Compliance |
| | 2018-10-01 | Major | Returned to Compliance |
| | 2018-10-01 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Acknowledged |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2018-09-01 | Major | Acknowledged |
| | 2018-09-01 | Major | Returned to Compliance |
| | 2018-08-01 | Major | Returned to Compliance |
| | 2018-08-01 | Major | Returned to Compliance |
| | 2018-05-01 | Major | Returned to Compliance |
| | 2018-05-01 | Major | Returned to Compliance |
| | 2017-10-01 | Major | Returned to Compliance |
| | 2017-10-01 | Major | Returned to Compliance |
| | 2017-08-01 | Major | Returned to Compliance |
| | 2017-08-01 | Major | Returned to Compliance |
| | 2017-06-01 | Major | Returned to Compliance |
| | 2017-06-01 | Major | Returned to Compliance |
| | 2017-04-01 | Major | Returned to Compliance |
| | 2017-04-01 | Major | Returned to Compliance |
| | 2017-03-23 | | Returned to Compliance |
| | 2016-10-01 | Major | Returned to Compliance |
| | 2016-10-01 | Major | Returned to Compliance |
| | 2016-10-01 | Major | Returned to Compliance |
| | 2016-10-01 | Major | Returned to Compliance |
| | 2016-09-01 | Major | Returned to Compliance |
| | 2016-09-01 | Major | Returned to Compliance |
| | 2016-08-01 | Major | Returned to Compliance |
| | 2016-08-01 | Major | Returned to Compliance |
| | 2016-07-01 | Major | Returned to Compliance |
| | 2016-07-01 | Major | Returned to Compliance |
| | 2016-06-01 | Major | Returned to Compliance |
| | 2016-06-01 | Major | Returned to Compliance |
Showing 50 of 73 historical violations.