Hess Winery
Published drinking-water records and contacts for Hess Winery. System CA2801016. Review sources and dates; not a real-time water assessment.
- System ID
- CA2801016
- State or territory
- CA
- Published population served
- 250
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 13 — 2010-01-01 – 2026-06-30
- California DDW laboratory results: 175 — 2026-01-06 – 2026-05-13
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 |
|---|---|---|---|
| Copper (CU90) | 3.45 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.007 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Copper (CU90) | 1.7 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.016 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Copper (CU90) | 1.7 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.0049 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| MAGNESIUM | 2.1 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| PERCHLORATE | < 1.000000000 UG/L | 2026-05-13 | TREATMENT PLANT / California DDW laboratory results |
| ALKALINITY, BICARBONATE | 36 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| CADMIUM | < 1.000000000 UG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| LEAD | < 5.000000000 UG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| CALCIUM | 5.6 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 5.000000000 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| HARDNESS, TOTAL (AS CACO3) | 23 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| MANGANESE | < 20.000000000 UG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 110 UMHO/CM | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| TDS | 98 MG/L | 2026-05-13 | PATRICK SPRING / California DDW laboratory results |
| AGGRESSIVE INDEX | 9.56 AGGR | 2026-05-13 | PATRICK SPRING / 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
4 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 / Follow-up Or Routine LCR Tap M/R | 2025-07-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule Revisions / LSL Inventory | 2024-10-17 – — | Unaddressed | Yes | 2026Q3 |
| Lead and Copper Rule Revisions / LSL Reporting | 2024-10-17 – — | Unaddressed | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2002-12-01 – 2002-12-31 | 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: 2026-10-18
Administrative contact (EPA filing)
Schneider, Adam: 707-320-9155
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.