Yolo Co Central Landfill
Published drinking-water records and contacts for Yolo Co Central Landfill. System CA5700778. Review sources and dates; not a real-time water assessment.
- System ID
- CA5700778
- State or territory
- CA
- Published population served
- 40
- System type (source code)
- NTNCWS
Published records and dates
- Lead and copper monitoring summaries: 6 — 2013-01-01 – 2025-12-31
- California DDW laboratory results: 79 — 2026-01-12 – 2026-06-01
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 | 2023-07-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.0035 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.000415 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.0032 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.0004 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| ARSENIC | 8.9 UG/L | 2026-06-01 | OPS BUILDING BREAKROOM (DP2) / California DDW laboratory results |
| ARSENIC | 8.4 UG/L | 2026-06-01 | RESIN TREATMENT SAMPLE TAP 3 (OUT) / California DDW laboratory results |
| ARSENIC | 8.6 UG/L | 2026-06-01 | BREAKROOM SINK (DP1) / California DDW laboratory results |
| ARSENIC | < 2.000000000 UG/L | 2026-05-06 | POU R/O AT ICE MAKER (DP3A) / California DDW laboratory results |
| ARSENIC | < 2.000000000 UG/L | 2026-05-06 | POU R/O BUILDING BREAKROOM SINK (DP7) / California DDW laboratory results |
| ARSENIC | 6.2 UG/L | 2026-05-06 | OPS BUILDING BREAKROOM (DP2) / California DDW laboratory results |
| ARSENIC | < 2.000000000 UG/L | 2026-05-06 | POU R/O ADMIN BREAKROOM SINK (DP6) / California DDW laboratory results |
| ARSENIC | 8.1 UG/L | 2026-05-06 | WELL 01 / California DDW laboratory results |
| ARSENIC | 6.4 UG/L | 2026-05-06 | BREAKROOM SINK (DP1) / California DDW laboratory results |
| ARSENIC | 6.5 UG/L | 2026-05-06 | RESIN TREATMENT SAMPLE TAP 3 (OUT) / California DDW laboratory results |
| ARSENIC | 5.6 UG/L | 2026-04-20 | BREAKROOM SINK (DP1) / California DDW laboratory results |
| ARSENIC | 5.4 UG/L | 2026-04-20 | OPS BUILDING BREAKROOM (DP2) / 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 |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2026-05-01 – 2026-05-31 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2025-10-01 – — | Addressed | No | 2026Q3 |
| Arsenic Rule / Monitoring, Regular | 2017-01-01 – 2017-03-31 | Resolved | 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)
Borrego, John: 530-666-8854
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.