Golden State Water Co. - Robbins
Published drinking-water records and contacts for Golden State Water Co. - Robbins. System CA5100107. Review sources and dates; not a real-time water assessment.
- System ID
- CA5100107
- State or territory
- CA
- Published population served
- 205
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 19 — 1996-01-01 – 2026-12-31
- California DDW laboratory results: 227 — 2026-01-06 – 2026-07-07
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.0016 mg/L | 2024-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2018-01-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.0031 mg/L | 2015-01-01 – 2017-12-31 | 2026Q3 |
| Lead (PB90) | 0.009 mg/L | 2012-01-01 – 2014-12-31 | 2026Q3 |
| Lead (PB90) | 0.009 mg/L | 2014-01-01 – 2014-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2009-01-01 – 2011-12-31 | 2026Q3 |
| Lead (PB90) | 0.008 mg/L | 2008-01-01 – 2008-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| ARSENIC | 24 UG/L | 2026-07-07 | WAGNER AVIATION WELL / California DDW laboratory results |
| MANGANESE | 190 UG/L | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| CHLORIDE | 1100 MG/L | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| ARSENIC | 20 UG/L | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| MANGANESE | 690 UG/L | 2026-07-07 | WAGNER AVIATION WELL / California DDW laboratory results |
| TDS | 2400 MG/L | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| BARIUM | 850 UG/L | 2026-07-07 | WAGNER AVIATION WELL / California DDW laboratory results |
| IRON | 440 UG/L | 2026-07-07 | WAGNER AVIATION WELL / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 3500 UMHO/CM | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| IRON | 210 UG/L | 2026-07-07 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| MANGANESE | 110 UG/L | 2026-06-02 | WAGNER AVIATION WELL - TREATED / California DDW laboratory results |
| ARSENIC | 23 UG/L | 2026-06-02 | WAGNER AVIATION WELL / California DDW laboratory results |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
82 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2021-10-01 – 2021-12-31 | Archived | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2021-07-01 – 2021-07-31 | Resolved | No | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2021-07-01 – 2021-09-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2021-04-01 – 2021-06-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2021-01-01 – 2021-03-31 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2020-10-01 – 2020-12-31 | Archived | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2020-08-01 – 2020-08-31 | Resolved | No | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2020-07-01 – 2020-09-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2020-04-01 – 2020-06-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2020-01-01 – 2020-03-31 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2019-10-01 – 2019-12-31 | Archived | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2019-07-01 – 2019-07-31 | Resolved | No | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2019-07-01 – 2019-09-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2019-04-01 – 2019-06-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2019-01-01 – 2019-03-31 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2018-10-01 – 2018-12-31 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2018-07-01 – 2018-09-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2018-04-01 – 2018-06-30 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2018-01-01 – 2018-03-31 | Archived | Yes | 2026Q3 |
| Arsenic Rule / Maximum Contaminant Level Violation, Average | 2017-10-01 – 2017-12-31 | Archived | Yes | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
- California DDW laboratory results — last successful check: 2026-10-18
Administrative contact (EPA filing)
Miller, Lisa: 916-853-3632
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.