Learned Lumber

Active WDID 4 19I029237 Hermosa Beach, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Hermosa Beach, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Santa Monica Bay (as reported by the facility)
Evidence: candidate, awaiting review 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
2 waterbodies; 2 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
120 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
33.85986, -118.39193
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
635 Pacific Coast Highway, Hermosa Beach 90254
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Manhattan Beach-Frontal Santa Monica Bay HUC12 180701040500

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
Learned Lumber
Primary industry (SIC)
4213-Trucking, Except Local
Application ID
535762
NOI processed
May 24, 2021
Last certified
May 21, 2021
Facility size
59366 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
535762 IndustrialActiveMay 24, 2021 —May 21, 2021

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

Receiving water

Reported by the facility Evidence: facility-reported
Santa Monica Bay
Discharges directly / indirectly
Y / N (as answered in the permit application)

Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review

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

Why it is not confirmed (1)
  • C1 name is only a prefix of official names

1 official waterbody shares this name; none is assigned without review.

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
Hermosa Beach CAX4051200019990922160827888 m listed1
Santa Monica Bay Offshore/Nearshore CAB4051300019990921164318894 m listed5

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.

120 distinct measurements across 4 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
2025244 0 Oct 14, 2025Feb 16, 2026
2024164 0 Feb 05, 2025Feb 13, 2025
2023164 0 Dec 20, 2023Jan 22, 2024
2022324 0 Nov 09, 2022Jan 10, 2023
2021324 0 Oct 25, 2021Mar 28, 2022

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Chemical Oxygen Demand (COD)mg/L30 2Oct 25, 2021Feb 16, 2026 Results
Oil and Greasemg/L30 15Oct 25, 2021Feb 16, 2026 Results
pHSU30 0Oct 25, 2021Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L30 0Oct 25, 2021Feb 16, 2026 Results

All results (120 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Chemical Oxygen Demand (COD) ND mg/L Effluent Qualifying Storm Event A5220C 1371403
Feb 16, 2026 Chemical Oxygen Demand (COD) 16.4 mg/L Effluent Qualifying Storm Event A5220C 1371403
Feb 16, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1371403
Feb 16, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1371403
Feb 16, 2026 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1371403
Feb 16, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1371403
Feb 16, 2026 Total Suspended Solids (TSS) 9 mg/L Effluent Qualifying Storm Event A2540D 1371403
Feb 16, 2026 Total Suspended Solids (TSS) 13 mg/L Effluent Qualifying Storm Event A2540D 1371403
Nov 14, 2025 Chemical Oxygen Demand (COD) ND mg/L Effluent Qualifying Storm Event A5220C 1361838
Nov 14, 2025 Chemical Oxygen Demand (COD) 12.6 mg/L Effluent Qualifying Storm Event A5220C 1361838
Nov 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1361838
Nov 14, 2025 Oil and Grease 2.3 mg/L Effluent Qualifying Storm Event E1664B 1361838
Nov 14, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1361838
Nov 14, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1361838
Nov 14, 2025 Total Suspended Solids (TSS) 9.5 mg/L Effluent Qualifying Storm Event A2540D 1361838
Nov 14, 2025 Total Suspended Solids (TSS) 29.5 mg/L Effluent Qualifying Storm Event A2540D 1361838
Oct 14, 2025 Chemical Oxygen Demand (COD) 77.8 mg/L Effluent Qualifying Storm Event A5220C 1358463
Oct 14, 2025 Chemical Oxygen Demand (COD) 21.6 mg/L Effluent Qualifying Storm Event A5220C 1358463
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1358463
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1358463
Oct 14, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1358463
Oct 14, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1358463
Oct 14, 2025 Total Suspended Solids (TSS) 9.7 mg/L Effluent Qualifying Storm Event A2540D 1358463
Oct 14, 2025 Total Suspended Solids (TSS) 8.7 mg/L Effluent Qualifying Storm Event A2540D 1358463
Feb 13, 2025 Chemical Oxygen Demand (COD) 30.3 mg/L Effluent Qualifying Storm Event A5220C 1325561
Feb 13, 2025 Chemical Oxygen Demand (COD) 26 mg/L Effluent Qualifying Storm Event A5220C 1325561
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1325561
Feb 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1325561
Feb 13, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1325561
Feb 13, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1325561
Feb 13, 2025 Total Suspended Solids (TSS) 3.6 mg/L Effluent Qualifying Storm Event A2540D 1325561
Feb 13, 2025 Total Suspended Solids (TSS) 5 mg/L Effluent Qualifying Storm Event A2540D 1325561
Feb 05, 2025 Chemical Oxygen Demand (COD) 24.2 mg/L Effluent Qualifying Storm Event A5220C 1324466
Feb 05, 2025 Chemical Oxygen Demand (COD) 32.3 mg/L Effluent Qualifying Storm Event A5220C 1324466
Feb 05, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1324466
Feb 05, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1324466
Feb 05, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1324466
Feb 05, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1324466
Feb 05, 2025 Total Suspended Solids (TSS) 8.2 mg/L Effluent Qualifying Storm Event A2540D 1324466
Feb 05, 2025 Total Suspended Solids (TSS) 6.8 mg/L Effluent Qualifying Storm Event A2540D 1324466
Jan 22, 2024 Chemical Oxygen Demand (COD) 12.5 mg/L Effluent Qualifying Storm Event A5220C 1280549
Jan 22, 2024 Chemical Oxygen Demand (COD) 33.4 mg/L Effluent Qualifying Storm Event A5220C 1280549
Jan 22, 2024 Oil and Grease 3.5 mg/L Effluent Qualifying Storm Event E1664B 1280549
Jan 22, 2024 Oil and Grease 1.2 mg/L Effluent Qualifying Storm Event E1664B 1280549
Jan 22, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1280549
Jan 22, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1280549
Jan 22, 2024 Total Suspended Solids (TSS) 31.4 mg/L Effluent Qualifying Storm Event A2540D 1280549
Jan 22, 2024 Total Suspended Solids (TSS) 20 mg/L Effluent Qualifying Storm Event A2540D 1280549
Dec 20, 2023 Chemical Oxygen Demand (COD) 70.2 mg/L Effluent Qualifying Storm Event A5220C 1273083
Dec 20, 2023 Chemical Oxygen Demand (COD) 73.9 mg/L Effluent Qualifying Storm Event A5220C 1273083

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 reports6certified reports (contents not shown) 2020 – 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 (6 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 02, 2026 Annual reports 1340333 Annual report 2025 —
Jun 19, 2025 Annual reports 1299461 Annual report 2024 —
Jun 14, 2024 Annual reports 1248810 Annual report 2023 —
Jun 28, 2023 Annual reports 1195096 Annual report 2022 —
Jun 28, 2022 Annual reports 1157055 Annual report 2021 —
Jul 06, 2021 Annual reports 1150469 Annual report 2020 —

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.