← Facilities

Industrial stormwater facility

Rams Gate Winery

WDID 2 49I023420 · Notice of Intent · Sonoma, Sonoma

SIC 2084 · Wines, Brandy, and Brandy Spirits · Regional Board 2 - San Francisco Bay Region

Official record — State Water Resources Control Board, Industrial General Permit

Hydrologic

Geographic context

Official facility coordinate plotted against the associated Final 2026 Integrated Report impaired-water geometry.

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  • Facility location (official coordinate)
  • Associated impaired-water geometry (Final 2026 Integrated Report)
  • YDOS-derived geographic context

Geometry shown is limited to waterbodies geographically associated with this facility. Geographic association does not establish a discharge connection, receiving-water connectivity, or causation.

Official facility point
38.17379, -122.45161
HUC12 subwatershed
Tolay Creek-Frontal San Pablo Bay Estuaries
HUC12 code
180500020604
Impaired-water associations (derived)
0

Official

Facility record

Facility name
Rams Gate Winery
WDID
2 49I023420
Application type
Notice of Intent
City
Sonoma
County
Sonoma
ZIP
95476
Primary SIC code
2084
SIC description
Wines, Brandy, and Brandy Spirits
Date active
2011-12-02
Regional Water Board
Regional Board 2 - San Francisco Bay Region

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

No impaired water was geographically associated with this facility.

Associations are calculated from official facility coordinates, USGS HUC12 boundaries, and official 2026 impaired-water geometry. They do not establish a discharge connection or causation.

TMDL requirements

Water Board-stated TMDL waste load allocations applied to this industrial permit in SMARTS.

Official record — SMARTS TMDL dataset, State Water Board

No SMARTS TMDL requirement is recorded for this WDID. In the statewide TMDL export only permits in Regions 4, 8 and 9 currently carry industrial TMDL requirements, so an absence here is not a statement that the facility discharges to an unimpaired water.

Official monitoring

SMARTS monitoring

Self-reported industrial stormwater sampling results as submitted by the discharger to SMARTS.

Official record — SMARTS parameter data, State Water Board
Reported results
63
Sample events
17
Distinct parameters
5
Reporting years
2017 – 2025
First sample
2018-01-05
Latest sample
2026-04-10
Source regional dataset
Region 2 - San Francisco Bay
Source retrieved
Aug 21, 2026

Official SMARTS public reports

Parameters reported

Reported results over time

Loading reported results…

Most recent reported results

Latest 25 of 63
Sample dateLocationParameterResultUnitsEvent
2026-04-10Storm Drain Porque VineyardCopper1.2mg/LQualifying Storm Event
2026-04-10Storm Drain Porque VineyardOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-04-10Storm Drain Porque VineyardpH5.4SUQualifying Storm Event
2026-04-10Storm Drain Porque VineyardTotal Suspended Solids (TSS)7.4mg/LQualifying Storm Event
2026-04-10Storm Drain Porque VineyardZinc.039mg/LQualifying Storm Event
2026-02-17Storm Drain Porque VineyardCopper.0026mg/LQualifying Storm Event
2026-02-17Storm Drain Porque VineyardOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-17Storm Drain Porque VineyardpH6.3SUQualifying Storm Event
2026-02-17Storm Drain Porque VineyardTotal Suspended Solids (TSS)38.4mg/LQualifying Storm Event
2026-02-17Storm Drain Porque VineyardZinc.28mg/LQualifying Storm Event
2026-01-05Storm Drain Porque VineyardCopper.027mg/LQualifying Storm Event
2026-01-05Storm Drain Porque VineyardOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-01-05Storm Drain Porque VineyardpH6.9SUQualifying Storm Event
2026-01-05Storm Drain Porque VineyardTotal Suspended Solids (TSS)23.6mg/LQualifying Storm Event
2026-01-05Storm Drain Porque VineyardZinc.37mg/LQualifying Storm Event
2025-12-23Storm Drain Porque VineyardCopper.53mg/LQualifying Storm Event
2025-12-23Storm Drain Porque VineyardOil and Grease2.8mg/LQualifying Storm Event
2025-12-23Storm Drain Porque VineyardpH6.4SUQualifying Storm Event
2025-12-23Storm Drain Porque VineyardTotal Suspended Solids (TSS)37.3mg/LQualifying Storm Event
2025-12-23Storm Drain Porque VineyardZinc1.9mg/LQualifying Storm Event
2025-02-04Storm Drain Porque VineyardCopper.0085mg/LQualifying Storm Event
2025-02-04Storm Drain Porque VineyardOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-02-04Storm Drain Porque VineyardpH7.5SUQualifying Storm Event
2025-02-04Storm Drain Porque VineyardTotal Suspended Solids (TSS)18mg/LQualifying Storm Event
2025-02-04Storm Drain Porque VineyardZinc.0088mg/LQualifying Storm Event

Monitoring rows are official self-reported SMARTS submissions, joined to this facility by WDID. California Stormwater Intelligence does not restate, correct, average or evaluate reported values, and no benchmark comparison or violation determination is made.

YDOS-derived

Numeric Action Level comparison

Reported SMARTS analytical results compared against the Numeric Action Levels of the Industrial General Permit version in effect for each reporting year (July 1 – June 30).

Derived
Reporting years evaluated
6
Years with an NAL exceedance
0
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Copper, Total

copper_total

Annual0.033 mg/LNot evaluatedNo eligible analytical results for this reporting year; every reported result was excluded with a stated reason.0 eligible4 excludedarithmetic mean of all eligible effluent results in the July 1 - June 30 reporting year (censored results assigned zero only where MDL and ML were both reported)

Oil and Grease

oil_grease

Instantaneous maximum0 samples above25 mg/LNot evaluatedNo eligible analytical results for this reporting year; every reported result was excluded with a stated reason.0 eligible4 excludedcount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum0 samples above6 – 9 pH unitsNot evaluatedNo eligible analytical results for this reporting year; every reported result was excluded with a stated reason.0 eligible4 excludedcount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Total Suspended Solids (TSS)

tss

Instantaneous maximum0 samples above400 mg/LNot evaluatedNo eligible analytical results for this reporting year; every reported result was excluded with a stated reason.0 eligible4 excludedcount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Zinc, Total

zinc_total

Annual0.26 mg/LNot evaluatedNo eligible analytical results for this reporting year; every reported result was excluded with a stated reason.0 eligible4 excludedarithmetic mean of all eligible effluent results in the July 1 - June 30 reporting year (censored results assigned zero only where MDL and ML were both reported)

An NAL exceedance is a permit-defined condition that triggers Exceedance Response Actions under the Industrial General Permit. It is not a violation, an enforcement action, or a Water Board compliance determination. Annual values use the arithmetic average of eligible results with non-detects treated as zero; instantaneous maximum NALs (total suspended solids, oil and grease, pH) are exceeded when two or more eligible results in a reporting year fall outside the level. Rules transcribed from 2014-0057-DWQ as amended by 2015-0122-DWQ (effective 2015-07-01, superseded 2020-06-30); 2014-0057-DWQ as amended by 2018-0028-DWQ (effective 2020-07-01).

Documents

Documents on file

Attachment inventory recorded in the State Water Board SMARTS public attachment workflow for this permit.

Source inventory — SMARTS public attachments. Documents are operator-submitted.

No document inventory has been indexed for this permit yet. The statewide document index is being built out; coverage is reported on the data-freshness panel.

Attachments for this permit remain viewable in the source system. Open the SMARTS public workflow

Enforcement

Enforcement records

Enforcement actions as recorded by the State Water Board for this permit, in the source system's own terminology.

Source record — SMARTS enforcement data

Structured enforcement records are not yet connected for this site. The absence of a record is not a finding about this facility.

Reporting

Reporting and ERA records

Annual report and Exceedance Response Action information as stated by the source system, distinguished from what is inferred from document metadata.

Source record — SMARTS reporting data

Structured reporting and ERA records are not yet connected for this site.

Recent activity

Recent source changes

New or changed source records this platform detected for this permit, newest first.

Derived

No source change has been detected for this permit yet. Change detection begins from the date each dataset was first indexed.

Provenance

Source & provenance

Source agency
California State Water Resources Control Board
Source dataset
Industrial General Permit — permitted facilities (statewide GIS layer)
WDID
2 49I023420
Source feature ID
10634
Application type
Notice of Intent
Regional board derivation
WDID region prefix
Geometry status
valid
Last successful facility import
Sep 16, 2026, 10:48 PM UTC

Official IGP permitted facilities feature layer