Golden State Water Company - South Shore
Published drinking-water records and contacts for Golden State Water Company - South Shore. System CA1700519. Review sources and dates; not a real-time water assessment.
- System ID
- CA1700519
- State or territory
- CA
- Published population served
- 30
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 13 — 1996-01-01 – 2024-12-31
- California DDW laboratory results: 145 — 2026-02-24 – 2026-07-09
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) | 0.0028 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2021-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0.0042 mg/L | 2015-01-01 – 2017-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2012-01-01 – 2014-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0.008 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
| Lead (PB90) | 0.00565 mg/L | 1999-01-01 – 2001-12-31 | 2026Q3 |
| Lead (PB90) | 0.00565 mg/L | 1999-01-01 – 2001-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| CHROMIUM, HEX | < 0.020000000 UG/L | 2026-07-09 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| RADIUM-226 | < 0.410000000 PCI/L | 2026-06-25 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| RADIUM-228 | < 0.420000000 PCI/L | 2026-06-25 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| GROSS ALPHA PARTICLE ACTIVITY | < 1.810000000 PCI/L | 2026-06-25 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| COMBINED RADIUM (-226 & -228) | < 0.420000000 PCI/L | 2026-06-25 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| COMBINED URANIUM | < 0.670000000 PCI/L | 2026-06-25 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| NONAFLUORO NFDHA | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| PERFLUOROHEPTANESULFONIC ACID (PFHPS) | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| PERFLUOROPENTANESULFONIC ACID (PFPES) | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| PERFLUOROHEXANOIC ACID (PFHXA) | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| PERFLUOROBUTANOIC ACID (PFBA) | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / California DDW laboratory results |
| PERFLUORO PFMBA | < 2.000000000 NG/L | 2026-06-11 | CLEAR LAKE INTAKE - RAW / 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
20 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 |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-07-01 – 2023-09-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-04-01 – 2023-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-04-01 – 2023-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2023-01-01 – 2023-03-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2021-04-01 – 2021-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2021-01-01 – 2021-03-31 | Archived | Yes | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2020-10-01 – — | Addressed | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2020-10-01 – 2020-12-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2020-04-01 – 2020-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2020-01-01 – 2020-03-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2019-10-01 – 2019-12-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2019-07-01 – 2019-09-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2019-04-01 – 2019-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2019-01-01 – 2019-03-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2018-10-01 – 2018-12-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2018-07-01 – 2018-09-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2018-04-01 – 2018-06-30 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2018-01-01 – 2018-03-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2017-10-01 – 2017-12-31 | Archived | Yes | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Maximum Contaminant Level Violation, Average | 2017-07-01 – 2017-09-30 | 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: 2026-10-17
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.