San Luis Hills
Published drinking-water records and contacts for San Luis Hills. System CA2400209. Review sources and dates; not a real-time water assessment.
- System ID
- CA2400209
- State or territory
- CA
- Published population served
- 779
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 13 — 1997-07-01 – 2025-12-31
- California DDW laboratory results: 118 — 2026-01-21 – 2026-06-03
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) | 0.0065 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2010-01-01 – 2012-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2007-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.011 mg/L | 2004-01-01 – 2006-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| ZINC | < 50.000000000 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| HARDNESS, TOTAL (AS CACO3) | 97 MG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| ARSENIC | 2.2 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| CHROMIUM | < 10.000000000 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| FLUORIDE | < 0.100000000 MG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| MERCURY | < 1.000000000 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| SODIUM | 45 MG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 420 UMHO/CM | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| ODOR | < 1.000000000 TON | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| PERCHLORATE | < 1.000000000 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| NITRITE | < 0.050000000 MG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW / California DDW laboratory results |
| SELENIUM | < 2.000000000 UG/L | 2026-06-03 | CALIF. AQUEDUCT & PIONEER RD-N SIDE-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
6 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 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2019-04-01 – 2019-06-30 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2018-10-01 – 2018-12-31 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2018-07-01 – 2018-09-30 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2018-04-01 – 2018-06-30 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2018-01-01 – 2018-03-31 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique Precursor Removal | 2017-10-01 – 2017-12-31 | Resolved | 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)
Silva, Brian: 209-826-4043
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.