McKenzie Mueller Vineyards and Winery

Terminated WDID 2 28I025946 Napa, Napa County Region 2 · San Francisco Bay

At a glance

Permit Evidence: SMARTS record
Terminated Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Napa, Napa County
Region 2 · San Francisco Bay · Location · Statewide map
Receiving water
unnamed stream to mud slough (as reported by the facility)
Evidence: not confirmed Details
Identified receiving water on the 2026 303(d) list
Not established
Shown only when the reported receiving water is identified and corroborated.
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
None
Monitoring results Evidence: facility-reported
75 distinct results, 9 reporting years (2015 to 2023)
Most recent sample Jan 31, 2024 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 1 violation record · 1 enforcement action
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

Each label shows where a statement comes from. How to read the labels.

Overview and location

Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
38.232877, -122.332582
Precision
6 decimal places
Shared point
No
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
2530 Las Amigas Road 2530 Las Amigas Rd, Napa 94559
Regional Water Board
2 — San Francisco Bay

HUC12 watershed Evidence: spatial

  • Carneros Creek-Frontal San Pablo Bay Estuaries HUC12 180500020501

The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.

Permits and applications Evidence: SMARTS record

Current permit record

Permit type
Industrial
Application type
Notice of Intent (WDID code I)
Status
Terminated
Operator
Yellow Clay Farm CO
Primary industry (SIC)
2084-Wines, Brandy, and Brandy Spirits
Application ID
460272
NOI processed
Aug 17, 2015
Termination effective
Nov 13, 2024
Last certified
Aug 11, 2015
Facility size
7500 SqFt
Impervious area
86 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
460272 IndustrialTerminatedAug 17, 2015 Nov 13, 2024Aug 11, 2015

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
unnamed stream to mud slough
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: not confirmed Not matchable to a single waterbody

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

Impaired waters and TMDLs

Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.

Nearby waterbodies Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.

No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.

SMARTS TMDL records Evidence: SMARTS-reported

No TMDL records for this facility in the SMARTS TMDL export.

Reported monitoring results Evidence: facility-reported

Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.

75 distinct measurements across 3 parameters, most recent sample Jan 31, 2024.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202393 0 Dec 06, 2023Jan 31, 2024
202293 0 Nov 08, 2022Mar 09, 2023
202163 0 Nov 09, 2021Mar 28, 2022
202093 0 Nov 17, 2020Jan 22, 2021
201993 0 Dec 11, 2019Apr 24, 2020
2018123 0 Nov 27, 2018Mar 20, 2019
201793 0 Nov 16, 2017Mar 20, 2018
201693 0 Oct 14, 2016Mar 21, 2017
201533 0 Apr 22, 2016Apr 22, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L25 24Apr 22, 2016Jan 31, 2024 Results
pHSU25 0Apr 22, 2016Jan 31, 2024 Results
Total Suspended Solids (TSS)mg/L25 1Apr 22, 2016Jan 31, 2024 Results

All results (75 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Jan 31, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1275770
Jan 31, 2024 pH 7.3 SU Effluent Qualifying Storm Event pH_Paper 1275770
Jan 31, 2024 Total Suspended Solids (TSS) 4.8 mg/L Effluent Qualifying Storm Event A2540D 1275770
Jan 09, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1271995
Jan 09, 2024 pH 6.8 SU Effluent Qualifying Storm Event pH_Paper 1271995
Jan 09, 2024 Total Suspended Solids (TSS) 4.9 mg/L Effluent Qualifying Storm Event A2540D 1271995
Dec 06, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1269944
Dec 06, 2023 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1269944
Dec 06, 2023 Total Suspended Solids (TSS) 4.8 mg/L Effluent Qualifying Storm Event A2540D 1269944
Mar 09, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1254524
Mar 09, 2023 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1254524
Mar 09, 2023 Total Suspended Solids (TSS) 12.6 mg/L Effluent Qualifying Storm Event A2540D 1254524
Feb 03, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1254516
Feb 03, 2023 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1254516
Feb 03, 2023 Total Suspended Solids (TSS) 5.9 mg/L Effluent Qualifying Storm Event A2540D 1254516
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1218731
Nov 08, 2022 pH 7.8 SU Effluent Qualifying Storm Event pH_Paper 1218731
Nov 08, 2022 Total Suspended Solids (TSS) 12.4 mg/L Effluent Qualifying Storm Event A2540D 1218731
Mar 28, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1179870
Mar 28, 2022 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1179870
Mar 28, 2022 Total Suspended Solids (TSS) 7.8 mg/L Effluent Qualifying Storm Event A2540D 1179870
Nov 09, 2021 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1170423
Nov 09, 2021 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1170423
Nov 09, 2021 Total Suspended Solids (TSS) 7 mg/L Effluent Qualifying Storm Event A2540D 1170423
Jan 22, 2021 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1140530
Jan 22, 2021 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1147952
Jan 22, 2021 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1140530
Jan 22, 2021 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1147952
Jan 22, 2021 Total Suspended Solids (TSS) 4 mg/L Effluent Qualifying Storm Event A2540D 1140530
Jan 22, 2021 Total Suspended Solids (TSS) 4 mg/L Effluent Qualifying Storm Event A2540D 1147952
Nov 17, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1137069
Nov 17, 2020 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1137069
Nov 17, 2020 Total Suspended Solids (TSS) 12 mg/L Effluent Qualifying Storm Event A2540D 1137069
Apr 24, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1104681
Apr 24, 2020 pH 7.2 SU Effluent Qualifying Storm Event A4500HB 1104681
Apr 24, 2020 Total Suspended Solids (TSS) 10 mg/L Effluent Qualifying Storm Event A2540D 1104681
Jan 16, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1100408
Jan 16, 2020 pH 6.8 SU Effluent Qualifying Storm Event A4500HB 1100408
Jan 16, 2020 Total Suspended Solids (TSS) 6 mg/L Effluent Qualifying Storm Event A2540D 1100408
Dec 11, 2019 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1095836
Dec 11, 2019 pH 6.8 SU Effluent Qualifying Storm Event A4500HB 1095836
Dec 11, 2019 Total Suspended Solids (TSS) 6 mg/L Effluent Qualifying Storm Event A2540D 1095836
Mar 20, 2019 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1051708
Mar 20, 2019 pH 6.8 SU Effluent Qualifying Storm Event A4500HB 1051708
Mar 20, 2019 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1051708
Feb 13, 2019 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1046751
Feb 13, 2019 pH 6.8 SU Effluent Qualifying Storm Event A4500HB 1046751
Feb 13, 2019 Total Suspended Solids (TSS) 28 mg/L Effluent Qualifying Storm Event A2540D 1046751
Dec 21, 2018 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 1033785
Dec 21, 2018 pH 7.2 SU Effluent Qualifying Storm Event A4500HB 1033785

Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.

Compliance and enforcement records Evidence: SMARTS record

These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations1 1 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 15, 2025 – Jul 15, 2025 Oct 21, 2026 All violations
Enforcement actions1 1 issued · 0 draft · 0 withdrawn, rescinded or superseded Aug 08, 2025 – Aug 08, 2025 Oct 21, 2026 All actions
Inspections0inspections, not findings — Oct 21, 2026
Annual reports9certified reports (contents not shown) 2015 – 2023 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, by parameter — Oct 21, 2026

Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.

Chronological record history (11 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Aug 08, 2025 Enforcement actions 457463 NOV (Notice of Violation) Historical
Jul 15, 2025 Violations 892934 Late Report ViolationReport
Jul 15, 2024 Annual reports 1247014 Annual report 2023 —
Aug 25, 2023 Annual reports 1193196 Annual report 2022 —
Jul 12, 2022 Annual reports 1116982 Annual report 2021 —
Jul 06, 2021 Annual reports 1065179 Annual report 2020 —
Jul 03, 2020 Annual reports 982249 Annual report 2019 —
Jul 01, 2019 Annual reports 958582 Annual report 2018 —
Jul 03, 2018 Annual reports 944020 Annual report 2017 —
Jul 06, 2017 Annual reports 883515 Annual report 2016 —
Jul 20, 2016 Annual reports 852781 Annual report 2015 —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.

How to read the evidence labels

Records are shown as published and are not compliance determinations. How geographic context is derived.