Wynola Water District
Published drinking-water records and contacts for Wynola Water District. System CA3701837. Review sources and dates; not a real-time water assessment.
- System ID
- CA3701837
- State or territory
- CA
- Published population served
- 140
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 4 — 2011-01-01 – 2025-12-31
- California DDW laboratory results: 189 — 2026-01-07 – 2026-07-01
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 | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.0071 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| MANGANESE | 160 UG/L | 2026-07-01 | WELL 07 / California DDW laboratory results |
| IRON | 690 UG/L | 2026-07-01 | WELL 07 / California DDW laboratory results |
| IRON | 190 UG/L | 2026-07-01 | WELL 03 / California DDW laboratory results |
| MANGANESE | 450 UG/L | 2026-07-01 | WELL 11 / California DDW laboratory results |
| MANGANESE | 270 UG/L | 2026-07-01 | WELL 10 / California DDW laboratory results |
| IRON | 2800 UG/L | 2026-07-01 | WELL 11 / California DDW laboratory results |
| IRON | 1500 UG/L | 2026-07-01 | WELL 10 / California DDW laboratory results |
| MANGANESE | 310 UG/L | 2026-07-01 | WELL 03 / California DDW laboratory results |
| MANGANESE | 320 UG/L | 2026-06-03 | WELL 03 / California DDW laboratory results |
| MANGANESE | 240 UG/L | 2026-06-03 | WELL 10 / California DDW laboratory results |
| IRON | 100 UG/L | 2026-06-03 | WELL 07 / California DDW laboratory results |
| IRON | 240 UG/L | 2026-06-03 | 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
10 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 Revisions / Notification, Known or Potential LSL | 2025-07-02 – — | Unaddressed | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2022-06-01 – 2022-06-30 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2020-10-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2020-01-01 – — | Resolved | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-01-01 – 1984-01-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-08-01 – 1983-08-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-01-13 – 1983-02-12 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1982-12-22 – 1983-01-21 | Archived | 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: 2026-10-18
Administrative contact (EPA filing)
Madaffer, Jim: 619-884-6556
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.