Drinking Water Compliance OS

NAPA, CA · Napa County

HESS WINERY Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID)
CA2801016
System type
Community Water System
Population served
250
Service connections
5
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2025

    Addressed
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Unaddressed
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2016 – May 31, 2016

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    May 1, 2009 – May 31, 2009

    Resolved

Addressed corrective action reported, pending final confirmationUnaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

Contact

SCHNEIDER, ADAM

707-320-9155

NAPA, CA 94558