Ranch Road Estates Mutual Water Company
Published drinking-water records and contacts for Ranch Road Estates Mutual Water Company. System CA1400031. Review sources and dates; not a real-time water assessment.
- System ID
- CA1400031
- State or territory
- CA
- Published population served
- 65
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 9 — 2005-01-01 – 2025-12-31
- California DDW laboratory results: 60 — 2026-03-17 – 2026-04-01
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 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2016-01-01 – 2016-06-30 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2015-07-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0.008 mg/L | 2015-01-01 – 2015-06-30 | 2026Q3 |
| Lead (PB90) | 0.008 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.006 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PERFLUOROPENTANESULFONIC ACID (PFPES) | < 2.000000000 NG/L | 2026-04-01 | WELL 01 NW / California DDW laboratory results |
| NONAFLUORO NFDHA | < 2.000000000 NG/L | 2026-04-01 | WELL 01 NW / California DDW laboratory results |
| HFPO-DA | < 2.000000000 NG/L | 2026-04-01 | WELL 01 NW / California DDW laboratory results |
| PERFLUOROUNDECANOIC ACID (PFUNA) | < 1.800000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| PERFLUORODECANOIC ACID (PFDA) | < 2.000000000 NG/L | 2026-04-01 | WELL 01 NW / California DDW laboratory results |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 1.800000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| PERFLUOROHEXANOIC ACID (PFHXA) | < 1.800000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| PERFLUOROOCTANE SULFONIC ACID 6:2 FTS | < 4.500000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| PERFLUORODECANE SULFONIC ACID 8:2 FTS | < 4.500000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| PERFLUOROHEXANE SULFONIC ACID 4:2 FTS | < 2.000000000 NG/L | 2026-04-01 | WELL 01 NW / California DDW laboratory results |
| 9CL-PF3ONS | < 1.800000000 NG/L | 2026-04-01 | WELL 02 SE / California DDW laboratory results |
| HFPO-DA | < 1.800000000 NG/L | 2026-04-01 | WELL 02 SE / 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
3 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 |
|---|---|---|---|---|
| Nitrate Rule / Monitoring, Regular | 2018-01-01 – 2018-12-31 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1981-10-01 – 1982-09-30 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1980-10-30 – 1981-10-29 | 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)
Lewis, Joan: 760-873-6456
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.