George P Johnson Company

Active WDID 4 19I030981 Torrance, 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
Torrance, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Torrance Carson Channel (as reported by the facility)
Evidence: identification corroborated Torrance Carson Channel Details
Identified receiving water on the 2026 303(d) list
Yes · 3 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
None
Monitoring results Evidence: facility-reported
12 distinct results, 1 reporting year (2025 to 2025)
Most recent sample Oct 14, 2025 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 1 violation record · 1 enforcement action
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
33.86301, -118.32546
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
18500 Crenshaw Blvd, Torrance 90504
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Lower Dominguez Channel HUC12 180701060102

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
George P Johnson Company
Primary industry (SIC)
3993-Signs and Advertising Specialties
Application ID
580722
NOI processed
Jan 21, 2025
Last certified
Jul 13, 2026
Facility size
7.25 Acres
Impervious area
100 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
580722 IndustrialActiveJan 21, 2025 —Jul 13, 2026

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

Receiving water

Reported by the facility Evidence: facility-reported
Torrance Carson Channel
Discharges directly / indirectly
Y / N (as answered in the permit application)

Evidence: identification corroborated Torrance Carson Channel CAR4051200020000229130309

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

Nearest distance from the reported facility location: 3.3 km. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Torrance Carson Channel is on the 2026 Clean Water Act section 303(d) list (3 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Copper5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)138056
Indicator Bacteria5List on 303(d) list (TMDL required list) 5A70920
Lead5Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)138058

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.

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.

12 distinct measurements across 6 parameters, most recent sample Oct 14, 2025.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025126 0 Oct 14, 2025Oct 14, 2025

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Copper, Totalmg/L2 1Oct 14, 2025Oct 14, 2025 Results
Lead, Totalmg/L2 1Oct 14, 2025Oct 14, 2025 Results
Oil and Greasemg/L2 2Oct 14, 2025Oct 14, 2025 Results
pHSU2 0Oct 14, 2025Oct 14, 2025 Results
Total Suspended Solids (TSS)mg/L2 0Oct 14, 2025Oct 14, 2025 Results
Zinc, Totalmg/L2 0Oct 14, 2025Oct 14, 2025 Results

All results (12 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Oct 14, 2025 Copper, Total .0207 mg/L Effluent Qualifying Storm Event E200.7 1360892
Oct 14, 2025 Copper, Total ND mg/L Effluent Qualifying Storm Event E200.7 1360892
Oct 14, 2025 Lead, Total .0136 mg/L Effluent Qualifying Storm Event E200.7 1360892
Oct 14, 2025 Lead, Total ND mg/L Effluent Qualifying Storm Event E200.7 1360892
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1360892
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1360892
Oct 14, 2025 pH 7.2 SU Effluent Qualifying Storm Event A4500HB 1360892
Oct 14, 2025 pH 7.4 SU Effluent Qualifying Storm Event A4500HB 1360892
Oct 14, 2025 Total Suspended Solids (TSS) 106 mg/L Effluent Qualifying Storm Event A2540D 1360892
Oct 14, 2025 Total Suspended Solids (TSS) 20.1 mg/L Effluent Qualifying Storm Event A2540D 1360892
Oct 14, 2025 Zinc, Total .299 mg/L Effluent Qualifying Storm Event E200.7 1360892
Oct 14, 2025 Zinc, Total .168 mg/L Effluent Qualifying Storm Event E200.7 1360892

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
Violations1 1 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 16, 2026 – Jul 16, 2026 Oct 21, 2026 All violations
Enforcement actions1 1 issued · 0 draft · 0 withdrawn, rescinded or superseded Jul 22, 2026 – Jul 22, 2026 Oct 21, 2026 All actions
Inspections0inspections, not findings — Oct 21, 2026
Annual reports2certified reports (contents not shown) 2024 – 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 (4 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Aug 05, 2026 Annual reports 1341845 Annual report 2025 —
Jul 22, 2026 Enforcement actions 470500 NOV (Notice of Violation) Active
Jul 16, 2026 Violations 904578 Late Report ViolationReport
Jun 13, 2025 Annual reports 1319221 Annual report 2024 —

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.