Uc Elkus Ranch
Published drinking-water records and contacts for Uc Elkus Ranch. System CA4100502. Review sources and dates; not a real-time water assessment.
- System ID
- CA4100502
- State or territory
- CA
- Published population served
- 34
- System type (source code)
- TNCWS
Published records and dates
- California DDW laboratory results: 13 — 2026-03-16 – 2026-03-16
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
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| CALCIUM | 68 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| PH | 8.39 PH | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| HARDNESS, TOTAL (AS CACO3) | 236 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| MAGNESIUM | 16 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| IRON | 120 UG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| ALKALINITY, BICARBONATE | 200 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 5.000000000 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 600 UMHO/CM | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| FLUORIDE | 0.25 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| ALKALINITY, CARBONATE | < 5.000000000 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| SODIUM | 31 MG/L | 2026-03-16 | PURISIMA CREEK INTAKE - RAW / California DDW laboratory results |
| MANGANESE | < 20.000000000 UG/L | 2026-03-16 | PURISIMA CREEK 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
25 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 |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2018-09-01 – 2018-09-30 | Resolved | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-09-01 – 1984-09-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-08-01 – 1984-08-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-07-01 – 1984-07-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-06-01 – 1984-06-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-05-01 – 1984-05-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-04-01 – 1984-04-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-03-01 – 1984-03-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-02-01 – 1984-02-29 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-01-01 – 1984-01-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-12-01 – 1983-12-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-11-01 – 1983-11-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-10-01 – 1983-10-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-09-01 – 1983-09-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-08-01 – 1983-08-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-07-01 – 1983-07-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-06-01 – 1983-06-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-05-01 – 1983-05-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-04-01 – 1983-04-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-03-01 – 1983-03-31 | 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)
Bono, Amy: 650-712-3151
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.