Royal Sierra Estates Ws
Published drinking-water records and contacts for Royal Sierra Estates Ws. System CA2700970. Review sources and dates; not a real-time water assessment.
- System ID
- CA2700970
- State or territory
- CA
- Published population served
- 36
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 12 — 2011-01-01 – 2026-06-30
- California DDW laboratory results: 22 — 2026-03-23 – 2026-06-16
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) | 0.0013 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.0092 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.0007 mg/L | 2025-01-01 – 2025-06-30 | 2026Q3 |
| Lead (PB90) | 0.0085 mg/L | 2024-07-01 – 2024-12-31 | 2026Q3 |
| Copper (CU90) | 1.54 mg/L | 2024-07-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2023-07-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2022-07-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| COPPER, FREE | 33 UG/L | 2026-06-16 | LCR Tap Sample / California DDW laboratory results |
| LEAD | < 1.000000000 UG/L | 2026-06-16 | LCR Tap Sample / California DDW laboratory results |
| COPPER, FREE | 2000 UG/L | 2026-06-07 | LCR Tap Sample / California DDW laboratory results |
| LEAD | < 1.000000000 UG/L | 2026-06-07 | LCR Tap Sample / California DDW laboratory results |
| LEAD | < 1.000000000 UG/L | 2026-06-07 | LCR Tap Sample / California DDW laboratory results |
| COPPER, FREE | 19 UG/L | 2026-06-07 | LCR Tap Sample / California DDW laboratory results |
| COPPER, FREE | 16 UG/L | 2026-06-06 | LCR Tap Sample / California DDW laboratory results |
| LEAD | 2.6 UG/L | 2026-06-06 | LCR Tap Sample / California DDW laboratory results |
| COPPER, FREE | 392 UG/L | 2026-06-06 | LCR Tap Sample / California DDW laboratory results |
| LEAD | < 1.000000000 UG/L | 2026-06-06 | LCR Tap Sample / California DDW laboratory results |
| NITRATE-NITRITE | < 0.100000000 MG/L | 2026-05-21 | WELL 03 / California DDW laboratory results |
| NITRITE | < 0.100000000 MG/L | 2026-05-21 | WELL 03 / 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
14 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 |
|---|---|---|---|---|
| Lead and Copper Rule / Initial Tap Sampling for Pb and Cu | 2024-07-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Initial Tap Sampling for Pb and Cu | 2023-07-01 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2017-03-01 – 2017-03-31 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2017-02-01 – 2017-02-28 | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-12-01 – 2002-12-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-07-01 – 2002-07-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2002-06-01 – 2002-06-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-05-01 – 2002-05-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2002-03-01 – 2002-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-02-01 – 2002-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-01-01 – 2002-01-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2001-12-01 – 2001-12-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 2000-05-01 – 2000-05-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Minor (TCR) | 2000-05-01 – 2000-05-31 | Archived | No | 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)
Serrano, Criselia: 831-737-0490
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.