Moss Landing Marine

Active WDID 3 27I025816 Moss Landing, Monterey 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
Moss Landing, Monterey County
Region 3 · Central Coast · Location · Statewide map
Receiving water
Moss Landing Harbor (as reported by the facility)
Evidence: identification corroborated Moss Landing Harbor Details
Identified receiving water on the 2026 303(d) list
Yes · 11 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
7 waterbodies; 4 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
365 distinct results, 10 reporting years (2015 to 2025)
Most recent sample Apr 21, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 3 violation records · 3 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
36.80587, -121.78684
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
7501 Sandholdt Rd, Moss Landing 95039
Regional Water Board
3 — Central Coast

HUC12 watershed Evidence: spatial

  • Elkhorn Slough HUC12 180600150301

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
Moss Landing Marine
Primary industry (SIC)
3732-Boat Building and Repairing
Application ID
457516
NOI processed
Jul 09, 2015
Last certified
Jul 14, 2025
Facility size
2 Acres

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
457516 IndustrialActiveJul 09, 2015 —Jul 14, 2025

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

Receiving water

Reported by the facility Evidence: facility-reported
Moss Landing Harbor
Discharges directly / indirectly
Y / N (as answered in the permit application)

Evidence: identification corroborated Moss Landing Harbor CAB3060001419981214121135

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

Nearest distance from the reported facility location: 61 m. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Moss Landing Harbor is on the 2026 Clean Water Act section 303(d) list (11 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Arsenic5Do Not Delist from 303(d) list (TMDL required list) 5A105677
Chlorpyrifos5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · Lower Salinas River Chlorpyrifos and Diazinon TMDL83304
DDT (Dichlorodiphenyltrichloroethane)5List on 303(d) list (TMDL required list) 5A83951
Dieldrin5Do Not Delist from 303(d) list (TMDL required list) 5A105682
Indicator Bacteria5List on 303(d) list (TMDL required list) 5A70642
Nickel5List on 303(d) list (TMDL required list) 5A81073
Oxygen, Dissolved5Do Not Delist from 303(d) list (TMDL required list) 5A82605
PCBs (Polychlorinated biphenyls)5Do Not Delist from 303(d) list (TMDL required list) 5A105687
pH5Do Not Delist from 303(d) list (TMDL required list) 5A105686
Sedimentation/Siltation5List on 303(d) list (TMDL required list) 5A70643
Toxicity5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · Lower Salinas River Chlorpyrifos and Diazinon TMDL105688

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
Moss Landing Harbor CAB306000141998121412113561 m listed11
Monterey Bay Shoreline at Moss Landing CAC3091101020110713164557170 m not listed0
Pacific Ocean, Soquel Pt. to Salinas River CAO3041302020200702049989170 m not listed0
Pacific Ocean Shoreline at Moss Landing State Beach CAC3091100020201005058714333 m not listed0
Elkhorn Slough CAE3060001419981209073137409 m listed9
Show 2 more nearby waterbodies
More nearby 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Old Salinas River Estuary CAE3060001419981214143807645 m listed2
Moro Cojo Slough (Monterey County) CAE3060001519981209132246688 m listed12

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.

365 distinct measurements across 10 parameters, most recent sample Apr 21, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
20254010 0 Nov 13, 2025Apr 21, 2026
20245010 0 Dec 12, 2024Feb 13, 2025
20235010 0 Dec 18, 2023Mar 29, 2024
20227010 0 Nov 01, 2022Mar 28, 2023
20211010 0 Dec 29, 2021Dec 29, 2021
20203910 0 Nov 18, 2020Mar 09, 2021
20193810 0 Nov 27, 2019Apr 06, 2020
2018407 0 Nov 29, 2018May 16, 2019
2016147 0 Jan 02, 2017Jan 02, 2017
2015147 0 Apr 22, 2016Apr 22, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Aluminum, Totalmg/L40 0Apr 22, 2016Apr 21, 2026 Results
Iron, Totalmg/L40 0Apr 22, 2016Apr 21, 2026 Results
Lead, Totalmg/L40 1Apr 22, 2016Apr 21, 2026 Results
Oil and Greasemg/L40 34Apr 22, 2016Apr 21, 2026 Results
Total Suspended Solids (TSS)mg/L40 6Apr 22, 2016Apr 21, 2026 Results
Zinc, Totalmg/L40 0Apr 22, 2016Apr 21, 2026 Results
pHSU38 2Apr 22, 2016Apr 21, 2026 Results
Nickel, Totalmg/L30 1Nov 27, 2019Apr 21, 2026 Results
Copper, Totalmg/L29 0Jan 09, 2020Apr 21, 2026 Results
Magnesium, Totalmg/L28 0Jan 09, 2020Apr 21, 2026 Results

All results (365 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Apr 21, 2026 Aluminum, Total .031 mg/L Effluent Qualifying Storm Event E200.8 1373945
Apr 21, 2026 Copper, Total .047 mg/L Effluent Qualifying Storm Event E200.8 1373945
Apr 21, 2026 Iron, Total .072 mg/L Effluent Qualifying Storm Event E200.7 1373945
Apr 21, 2026 Lead, Total .00088 mg/L Effluent Qualifying Storm Event E200.8 1373945
Apr 21, 2026 Magnesium, Total 4.1 mg/L Effluent Qualifying Storm Event E200.7 1373945
Apr 21, 2026 Nickel, Total .0031 mg/L Effluent Qualifying Storm Event E200.8 1373945
Apr 21, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1373945
Apr 21, 2026 pH 6.89 SU Effluent Qualifying Storm Event pH_Field 1373945
Apr 21, 2026 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1373945
Apr 21, 2026 Zinc, Total .023 mg/L Effluent Qualifying Storm Event E200.8 1373945
Feb 11, 2026 Aluminum, Total .096 mg/L Effluent Qualifying Storm Event E200.8 1370722
Feb 11, 2026 Copper, Total .29 mg/L Effluent Qualifying Storm Event E200.8 1370722
Feb 11, 2026 Iron, Total .31 mg/L Effluent Qualifying Storm Event E200.7 1370722
Feb 11, 2026 Lead, Total .0058 mg/L Effluent Qualifying Storm Event E200.8 1370722
Feb 11, 2026 Magnesium, Total 19 mg/L Effluent Qualifying Storm Event E200.7 1370722
Feb 11, 2026 Nickel, Total .0031 mg/L Effluent Qualifying Storm Event E200.8 1370722
Feb 11, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1370722
Feb 11, 2026 pH 7.92 SU Effluent Qualifying Storm Event pH_Field 1370722
Feb 11, 2026 Total Suspended Solids (TSS) 1.9 mg/L Effluent Qualifying Storm Event A2540D 1370722
Feb 11, 2026 Zinc, Total .037 mg/L Effluent Qualifying Storm Event E200.8 1370722
Dec 24, 2025 Aluminum, Total .042 mg/L Effluent Qualifying Storm Event E200.8 1365108
Dec 24, 2025 Copper, Total .055 mg/L Effluent Qualifying Storm Event E200.8 1365108
Dec 24, 2025 Iron, Total .9 mg/L Effluent Qualifying Storm Event E200.7 1365108
Dec 24, 2025 Lead, Total .0014 mg/L Effluent Qualifying Storm Event E200.8 1365108
Dec 24, 2025 Magnesium, Total 4.9 mg/L Effluent Qualifying Storm Event E200.7 1365108
Dec 24, 2025 Nickel, Total .0018 mg/L Effluent Qualifying Storm Event E200.8 1365108
Dec 24, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1365108
Dec 24, 2025 pH 7.96 SU Effluent Qualifying Storm Event pH_Field 1365108
Dec 24, 2025 Total Suspended Solids (TSS) 3.5 mg/L Effluent Qualifying Storm Event A2540D 1365108
Dec 24, 2025 Zinc, Total .0098 mg/L Effluent Qualifying Storm Event E200.8 1365108
Nov 13, 2025 Aluminum, Total .1 mg/L Effluent Qualifying Storm Event E200.8 1360621
Nov 13, 2025 Copper, Total .1 mg/L Effluent Qualifying Storm Event E200.8 1360621
Nov 13, 2025 Iron, Total 2.8 mg/L Effluent Qualifying Storm Event E200.7 1360621
Nov 13, 2025 Lead, Total .0034 mg/L Effluent Qualifying Storm Event E200.8 1360621
Nov 13, 2025 Magnesium, Total 12 mg/L Effluent Qualifying Storm Event E200.7 1360621
Nov 13, 2025 Nickel, Total .003 mg/L Effluent Qualifying Storm Event E200.8 1360621
Nov 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1360621
Nov 13, 2025 pH 7.86 SU Effluent Qualifying Storm Event pH_Field 1360621
Nov 13, 2025 Total Suspended Solids (TSS) 9 mg/L Effluent Qualifying Storm Event A2540D 1360621
Nov 13, 2025 Zinc, Total .018 mg/L Effluent Qualifying Storm Event E200.8 1360621
Feb 13, 2025 Aluminum, Total .075 mg/L Effluent Qualifying Storm Event E200.8 1327390
Feb 13, 2025 Aluminum, Total .075 mg/L Effluent Qualifying Storm Event E200.8 1333799
Feb 13, 2025 Copper, Total .32 mg/L Effluent Qualifying Storm Event E200.8 1327390
Feb 13, 2025 Copper, Total .32 mg/L Effluent Qualifying Storm Event E200.8 1333799
Feb 13, 2025 Iron, Total .1 mg/L Effluent Qualifying Storm Event E200.7 1327390
Feb 13, 2025 Iron, Total .1 mg/L Effluent Qualifying Storm Event E200.7 1333799
Feb 13, 2025 Lead, Total .0043 mg/L Effluent Qualifying Storm Event E200.8 1327390
Feb 13, 2025 Lead, Total .0043 mg/L Effluent Qualifying Storm Event E200.8 1333799
Feb 13, 2025 Magnesium, Total 3.2 mg/L Effluent Qualifying Storm Event E200.7 1327390
Feb 13, 2025 Magnesium, Total 3.2 mg/L Effluent Qualifying Storm Event E200.7 1333799

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
Violations3 3 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 15, 2015 – Jul 16, 2019 Oct 21, 2026 All violations
Enforcement actions3 3 issued · 0 draft · 0 withdrawn, rescinded or superseded Nov 20, 2015 – Sep 27, 2019 Oct 21, 2026 All actions
Inspections2inspections, not findings Jun 11, 2015 – May 02, 2019 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 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 (19 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 13, 2026 Annual reports 1339026 Annual report 2025 —
Jul 23, 2025 Annual reports 1298054 Annual report 2024 —
Jul 15, 2024 Annual reports 1247319 Annual report 2023 —
Jul 26, 2023 Annual reports 1117345 Annual report 2021 —
Jul 26, 2023 Annual reports 1193515 Annual report 2022 —
Jul 14, 2021 Annual reports 1065558 Annual report 2020 —
Jul 14, 2020 Annual reports 982660 Annual report 2019 —
Sep 30, 2019 Annual reports 959007 Annual report 2018 —
Sep 27, 2019 Enforcement actions 434200 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 16, 2019 Violations 871089 Late Report ViolationReport
May 02, 2019 Inspections 2042893 B Type compliance —Additional Info Required
Aug 08, 2018 Annual reports 944444 Annual report 2017 —
Jul 05, 2017 Annual reports 883849 Annual report 2016 —
Nov 14, 2016 Annual reports 848449 Annual report 2015 —
Aug 12, 2016 Enforcement actions 424151 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 16, 2016 Violations 861205 Late Report ViolationReport
Nov 20, 2015 Enforcement actions 421613 NNC (Notice of Non-Compliance) Historical
Aug 15, 2015 Violations 859274 Failure to Obtain Permit ViolationReport
Jun 11, 2015 Inspections 2041260 B Type compliance —Additional Info Required

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.