Multi Color Corporation

Active WDID 2 28I029457 Napa, Napa County Region 2 · San Francisco Bay

At a glance

Permit Evidence: SMARTS record
Active 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
Tulucay Creek-Frontal San Pablo Bay Estuaries (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
63 distinct results, 5 reporting years (2021 to 2025)
Most recent sample Feb 16, 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
38.22414, -122.25564
Precision
5 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
21 Executive Way, Napa 94558
Regional Water Board
2 — San Francisco Bay

HUC12 watershed Evidence: spatial

  • Tulucay Creek-Frontal San Pablo Bay Estuaries HUC12 180500020402

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
MCC Manufacturing Inc
Primary industry (SIC)
2752-Commercial Printing, Lithographic
Application ID
542359
NOI processed
Oct 27, 2021
Last certified
Sep 13, 2024
Facility size
150000 SqFt
Impervious area
99 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
542359 IndustrialActiveOct 27, 2021 —Sep 13, 2024

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

Receiving water

Reported by the facility Evidence: facility-reported
Tulucay Creek-Frontal San Pablo Bay Estuaries
Discharges directly / indirectly
Y / N (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.

63 distinct measurements across 3 parameters, most recent sample Feb 16, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025123 0 Nov 05, 2025Feb 16, 2026
2024123 0 Dec 12, 2024Feb 13, 2025
2023123 0 Nov 06, 2023Mar 12, 2024
2022153 0 Nov 08, 2022May 02, 2023
2021123 0 Dec 13, 2021Mar 28, 2022

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L21 11Dec 13, 2021Feb 16, 2026 Results
pHSU21 0Dec 13, 2021Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L21 0Dec 13, 2021Feb 16, 2026 Results

All results (63 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1372406
Feb 16, 2026 pH 6.49 SU Effluent Qualifying Storm Event pH_Field 1372406
Feb 16, 2026 Total Suspended Solids (TSS) 9.6 mg/L Effluent Qualifying Storm Event A2540D 1372406
Jan 05, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1372403
Jan 05, 2026 pH 6.64 SU Effluent Qualifying Storm Event pH_Field 1372403
Jan 05, 2026 Total Suspended Solids (TSS) 11.4 mg/L Effluent Qualifying Storm Event A2540D 1372403
Nov 13, 2025 Oil and Grease 0 mg/L Effluent Qualifying Storm Event E1664A 1358837
Nov 13, 2025 pH 6.87 SU Effluent Qualifying Storm Event pH_Field 1358837
Nov 13, 2025 Total Suspended Solids (TSS) 26 mg/L Effluent Qualifying Storm Event A2540D 1358837
Nov 05, 2025 Oil and Grease 2.3 mg/L Effluent Qualifying Storm Event E1664A 1358799
Nov 05, 2025 pH 6.99 SU Effluent Qualifying Storm Event pH_Field 1358799
Nov 05, 2025 Total Suspended Solids (TSS) 13.2 mg/L Effluent Qualifying Storm Event A2540D 1358799
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1328911
Feb 13, 2025 pH 6.61 SU Effluent Qualifying Storm Event pH_Field 1328911
Feb 13, 2025 Total Suspended Solids (TSS) 2.4 mg/L Effluent Qualifying Storm Event A2540D 1328911
Feb 04, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1328909
Feb 04, 2025 pH 7.67 SU Effluent Qualifying Storm Event pH_Field 1328909
Feb 04, 2025 Total Suspended Solids (TSS) 12.7 mg/L Effluent Qualifying Storm Event A2540D 1328909
Dec 16, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1328908
Dec 16, 2024 pH 6.55 SU Effluent Qualifying Storm Event pH_Field 1328908
Dec 16, 2024 Total Suspended Solids (TSS) 9.2 mg/L Effluent Qualifying Storm Event A2540D 1328908
Dec 12, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1328907
Dec 12, 2024 pH 6.65 SU Effluent Qualifying Storm Event pH_Field 1328907
Dec 12, 2024 Total Suspended Solids (TSS) 5.8 mg/L Effluent Qualifying Storm Event A2540D 1328907
Mar 12, 2024 Oil and Grease 1.8 mg/L Effluent Qualifying Storm Event E1664A 1289963
Mar 12, 2024 pH 6.85 SU Effluent Qualifying Storm Event pH_Field 1289963
Mar 12, 2024 Total Suspended Solids (TSS) 8.7 mg/L Effluent Qualifying Storm Event A2540D 1289963
Jan 24, 2024 Oil and Grease 0 mg/L Effluent Qualifying Storm Event E1664A 1280188
Jan 24, 2024 pH 6.98 SU Effluent Qualifying Storm Event pH_Field 1280188
Jan 24, 2024 Total Suspended Solids (TSS) 13.4 mg/L Effluent Qualifying Storm Event A2540D 1280188
Dec 18, 2023 Oil and Grease 1.9 mg/L Effluent Qualifying Storm Event E1664A 1289955
Dec 18, 2023 pH 7.03 SU Effluent Qualifying Storm Event pH_Field 1289955
Dec 18, 2023 Total Suspended Solids (TSS) 10.4 mg/L Effluent Qualifying Storm Event A2540D 1289955
Nov 06, 2023 Oil and Grease 2.5 mg/L Effluent Qualifying Storm Event E1664A 1268234
Nov 06, 2023 pH 7.41 SU Effluent Qualifying Storm Event pH_Field 1268234
Nov 06, 2023 Total Suspended Solids (TSS) 9.2 mg/L Effluent Qualifying Storm Event A2540D 1268234
May 02, 2023 Oil and Grease 2.1 mg/L Effluent Qualifying Storm Event E1664A 1236319
May 02, 2023 pH 6.83 SU Effluent Qualifying Storm Event pH_Field 1236319
May 02, 2023 Total Suspended Solids (TSS) 7.9 mg/L Effluent Qualifying Storm Event A2540D 1236319
Feb 28, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1236309
Feb 28, 2023 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1236309
Feb 28, 2023 Total Suspended Solids (TSS) 13.2 mg/L Effluent Qualifying Storm Event A2540D 1236309
Dec 27, 2022 Oil and Grease 2.2 mg/L Effluent Qualifying Storm Event E1664A 1227225
Dec 27, 2022 pH 7.43 SU Effluent Qualifying Storm Event pH_Field 1227225
Dec 27, 2022 Total Suspended Solids (TSS) 6.3 mg/L Effluent Qualifying Storm Event A2540D 1227225
Dec 12, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1227222
Dec 12, 2022 pH 7.21 SU Effluent Qualifying Storm Event pH_Field 1227222
Dec 12, 2022 Total Suspended Solids (TSS) 20 mg/L Effluent Qualifying Storm Event A2540D 1227222
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1227211
Nov 08, 2022 pH 7.1 SU Effluent Qualifying Storm Event pH_Field 1227211

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 reports5certified reports (contents not shown) 2021 – 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 (5 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 14, 2026 Annual reports 1340261 Annual report 2025 —
Jul 15, 2025 Annual reports 1299384 Annual report 2024 —
Jul 15, 2024 Annual reports 1248727 Annual report 2023 —
Jul 07, 2023 Annual reports 1195014 Annual report 2022 —
Jul 13, 2022 Annual reports 1167870 Annual report 2021 —

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.