Calera Winery

Active WDID 3 35I027804 Hollister, San Benito County Region 3 · Central Coast

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Hollister, San Benito County
Region 3 · Central Coast · Location · Statewide map
Receiving water
San Benito River (as reported by the facility)
Evidence: identification corroborated San Benito River Details
Identified receiving water on the 2026 303(d) list
Yes · 10 Appendix A decisions, category 5 Evidence: State-published
Describes the waterbody, not this facility · Waterbody profile
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
1 waterbody; 0 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
118 distinct results, 8 reporting years (2018 to 2025)
Most recent sample Feb 11, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 0 violation records · 0 enforcement actions
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
36.7366, -121.36914
Precision
4 decimal places
Shared point
2 permits report this exact point
Matches application record
same

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

Facility address
11300 Cienega Rd, Hollister 94574
Regional Water Board
3 — Central Coast

HUC12 watershed Evidence: spatial

  • Paicines Reservoir-San Benito River HUC12 180600020703

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
Active
Operator
Duckhorn Wine Co
Primary industry (SIC)
2084-Wines, Brandy, and Brandy Spirits
Application ID
496628
NOI processed
Jul 19, 2018
Last certified
May 30, 2018
Facility size
86.2 Acres
Impervious area
6 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
496628 IndustrialActiveJul 19, 2018 —May 30, 2018

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

Receiving water

Reported by the facility Evidence: facility-reported
San Benito River
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: identification corroborated San Benito River CAR3053002019981207091641

Receiving water reported by facility — waterbody identification corroborated by geographic evidence.

Nearest distance from the reported facility location: 3.1 km. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

San Benito River is on the 2026 Clean Water Act section 303(d) list (10 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Aluminum5Do Not Delist from 303(d) list (TMDL required list) 5A151451
Boron5List on 303(d) list (TMDL required list) 5A80889
Copper5List on 303(d) list (TMDL required list) 5A107234
Escherichia coli (E. coli)5Do Not Delist from 303(d) list (TMDL required list) 5A125846
Manganese5List on 303(d) list (TMDL required list) 5A107242
pH5Do Not Delist from 303(d) list (TMDL required list) 5A107247
Sedimentation/Siltation5List on 303(d) list (being addressed by USEPA approved TMDL) 5B · Pajaro River Siltation/Sedimentation (including San Benito R., Llagas Cr., Rider Gulch Cr.)69397
Specific Conductivity5Do Not Delist from 303(d) list (TMDL required list) 5A126392
Toxicity5List on 303(d) list (TMDL required list) 5A107251
Turbidity5List on 303(d) list (TMDL required list) 5A107253

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.

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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Pescadero Creek (San Benito County) CAR3055003320020124124816914 m not listed0

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

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.

118 distinct measurements across 5 parameters, most recent sample Feb 11, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025105 0 Feb 11, 2026Feb 11, 2026
2024105 0 Feb 06, 2025Feb 06, 2025
2023165 0 Dec 18, 2023Jan 22, 2024
2022165 0 Nov 08, 2022Feb 27, 2023
2021123 0 Nov 09, 2021Mar 28, 2022
2020123 0 Jan 04, 2021Jan 27, 2021
2019244 0 Nov 27, 2019Jan 09, 2020
2018183 0 Nov 28, 2018Feb 14, 2019

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L34 29Nov 28, 2018Feb 11, 2026 Results
pHSU34 0Nov 28, 2018Feb 11, 2026 Results
Total Suspended Solids (TSS)mg/L32 7Nov 28, 2018Feb 11, 2026 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm10 0Dec 02, 2019Feb 11, 2026 Results
TemperatureDegrees C8 0Feb 27, 2023Feb 11, 2026 Results

All results (118 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 11, 2026 Electrical Conductivity @ 25 Deg. C 23 umhos/cm Effluent Qualifying Storm Event A2510B 1368249
Feb 11, 2026 Electrical Conductivity @ 25 Deg. C 467 umhos/cm Effluent Qualifying Storm Event A2510B 1368249
Feb 11, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1368249
Feb 11, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1368249
Feb 11, 2026 pH 6.9 SU Effluent Qualifying Storm Event A4500HB 1368249
Feb 11, 2026 pH 7.1 SU Effluent Qualifying Storm Event A4500HB 1368249
Feb 11, 2026 Temperature 19.6 Degrees C Effluent Qualifying Storm Event A2550B 1368249
Feb 11, 2026 Temperature 19.6 Degrees C Effluent Qualifying Storm Event A2550B 1368249
Feb 11, 2026 Total Suspended Solids (TSS) 3 mg/L Effluent Qualifying Storm Event A2540D 1368249
Feb 11, 2026 Total Suspended Solids (TSS) 40 mg/L Effluent Qualifying Storm Event A2540D 1368249
Feb 06, 2025 Electrical Conductivity @ 25 Deg. C 551 umhos/cm Effluent Qualifying Storm Event A2510B 1323911
Feb 06, 2025 Electrical Conductivity @ 25 Deg. C 16 umhos/cm Effluent Qualifying Storm Event A2510B 1323911
Feb 06, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1323911
Feb 06, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1323911
Feb 06, 2025 pH 8.13 SU Effluent Qualifying Storm Event pH_Field 1323911
Feb 06, 2025 pH 7.5 SU Effluent Qualifying Storm Event pH_Field 1323911
Feb 06, 2025 Temperature 20.5 Degrees C Effluent Qualifying Storm Event A2550B 1323911
Feb 06, 2025 Temperature 20.6 Degrees C Effluent Qualifying Storm Event A2550B 1323911
Feb 06, 2025 Total Suspended Solids (TSS) 81 mg/L Effluent Qualifying Storm Event A2540D 1323911
Feb 06, 2025 Total Suspended Solids (TSS) 8 mg/L Effluent Qualifying Storm Event A2540D 1323911
Jan 22, 2024 Electrical Conductivity @ 25 Deg. C 11 umhos/cm Effluent Qualifying Storm Event A2510B 1274175
Jan 22, 2024 Electrical Conductivity @ 25 Deg. C 204 umhos/cm Effluent Qualifying Storm Event A2510B 1274175
Jan 22, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1274175
Jan 22, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1274175
Jan 22, 2024 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1274175
Jan 22, 2024 pH 7.55 SU Effluent Qualifying Storm Event pH_Field 1274175
Jan 22, 2024 Temperature 21.5 Degrees C Effluent Qualifying Storm Event A2550B 1274175
Jan 22, 2024 Temperature 21.5 Degrees C Effluent Qualifying Storm Event A2550B 1274175
Jan 22, 2024 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1274175
Jan 22, 2024 Total Suspended Solids (TSS) 50 mg/L Effluent Qualifying Storm Event A2540D 1274175
Dec 18, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1274172
Dec 18, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1274172
Dec 18, 2023 pH 7.34 SU Effluent Qualifying Storm Event pH_Field 1274172
Dec 18, 2023 pH 7.51 SU Effluent Qualifying Storm Event pH_Field 1274172
Dec 18, 2023 Total Suspended Solids (TSS) 4 mg/L Effluent Qualifying Storm Event A2540D 1274172
Dec 18, 2023 Total Suspended Solids (TSS) 96 mg/L Effluent Qualifying Storm Event A2540D 1274172
Feb 27, 2023 Electrical Conductivity @ 25 Deg. C 23 umhos/cm Effluent Qualifying Storm Event A2510B 1229797
Feb 27, 2023 Electrical Conductivity @ 25 Deg. C 558 umhos/cm Effluent Qualifying Storm Event A2510B 1229797
Feb 27, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1229797
Feb 27, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1229797
Feb 27, 2023 pH 7.29 SU Effluent Qualifying Storm Event pH_Field 1229797
Feb 27, 2023 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1229797
Feb 27, 2023 Temperature 16.2 Degrees C Effluent Qualifying Storm Event A2550B 1229797
Feb 27, 2023 Temperature 16.4 Degrees C Effluent Qualifying Storm Event A2550B 1229797
Feb 27, 2023 Total Suspended Solids (TSS) 4 mg/L Effluent Qualifying Storm Event A2540D 1229797
Feb 27, 2023 Total Suspended Solids (TSS) 80 mg/L Effluent Qualifying Storm Event A2540D 1229797
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1217280
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1217280
Nov 08, 2022 pH 7.05 SU Effluent Qualifying Storm Event pH_Field 1217280
Nov 08, 2022 pH 7.06 SU Effluent Qualifying Storm Event pH_Field 1217280

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
Violations0 0 Violation · 0 Potential (preliminary) · 0 Dismissed — Oct 21, 2026
Enforcement actions0 0 issued · 0 draft · 0 withdrawn, rescinded or superseded — Oct 21, 2026
Inspections0inspections, not findings — Oct 21, 2026
Annual reports8certified reports (contents not shown) 2018 – 2025 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 (8 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 15, 2026 Annual reports 1341010 Annual report 2025 —
Jul 15, 2025 Annual reports 1300188 Annual report 2024 —
Jul 10, 2024 Annual reports 1249595 Annual report 2023 —
Jul 07, 2023 Annual reports 1195931 Annual report 2022 —
Jun 21, 2022 Annual reports 1119329 Annual report 2021 —
Jul 12, 2021 Annual reports 1071528 Annual report 2020 —
Jul 08, 2020 Annual reports 1071951 Annual report 2019 —
Jul 15, 2019 Annual reports 1010259 Annual report 2018 —

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.