Atlas Galvanizing LLC

Active WDID 4 19I018952 Los Angeles, 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
Los Angeles, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Los Angeles River Rio Hondo (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
124 distinct results, 10 reporting years (2015 to 2025)
Most recent sample Feb 17, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 5 violation records · 5 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
4 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
34.00002, -118.22411
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
2639 Leonis Blvd, Los Angeles 90058
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Chavez Ravine-Los Angeles River HUC12 180701050401

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
Atlas Galvanizing LLC
Primary industry (SIC)
3479-Coating, Engraving, and Allied Services, NEC
Application ID
191782
NOI processed
Aug 06, 2004
Last certified
May 08, 2015
Facility size
43500 SqFt
Impervious area
70 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
191782 IndustrialActiveAug 06, 2004 —May 08, 2015

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

Receiving water

Reported by the facility Evidence: facility-reported
Los Angeles River Rio Hondo
Discharges directly / indirectly
N / Y (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

SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.

TMDL records SMARTS lists for this facility
TMDLWaterbody (as reported)ParameterLimitTypePeriodDueDischarges to TMDL water
Los Angeles River Metals TMDLLos Angeles River and Los Angeles River TributariesZinc, Total .159 mg/LNEL instantaneous FINAL2020-07-01Y
Los Angeles River Nitrogen TMDLLos Angeles River WatershedNitrate, Total (as N) 8 mg/LNEL instantaneous FINAL2020-07-01Y
Los Angeles River Nitrogen TMDLLos Angeles River WatershedNitrite Plus Nitrate (as N) 8 mg/LNEL instantaneous FINAL2020-07-01Y
Los Angeles River Nitrogen TMDLLos Angeles River WatershedNitrite, Total (as N) 1 mg/LNEL instantaneous FINAL2020-07-01Y

4 records. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.

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.

124 distinct measurements across 8 parameters, most recent sample Feb 17, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025217 0 Oct 16, 2025Feb 17, 2026
2024147 0 Feb 13, 2025Mar 12, 2025
202395 0 Jan 03, 2024Feb 01, 2024
2022105 0 Jan 09, 2023Mar 14, 2023
2021105 0 Oct 25, 2021Mar 28, 2022
202055 0 Mar 03, 2021Mar 03, 2021
2018255 0 Jan 14, 2019Jan 31, 2019
2017105 0 Mar 21, 2018Mar 21, 2018
2016105 0 Jan 05, 2017Jan 05, 2017
2015105 0 Jan 05, 2016Jan 05, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Nitrite Plus Nitrate (as N)mg/L23 5Jan 05, 2016Feb 17, 2026 Results
Oil and Greasemg/L23 13Jan 05, 2016Feb 17, 2026 Results
Total Suspended Solids (TSS)mg/L23 3Jan 05, 2016Feb 17, 2026 Results
pHSU22 0Jan 05, 2016Feb 17, 2026 Results
Zinc, Totalmg/L16 0Jan 05, 2016Mar 14, 2023 Results
Zinc, Total Recoverablemg/L7 0Jan 03, 2024Feb 17, 2026 Results
Nitrate, Total (as N)mg/L5 3Feb 13, 2025Feb 17, 2026 Results
Nitrite, Total (as N)mg/L5 5Feb 13, 2025Feb 17, 2026 Results

All results (124 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 17, 2026 Nitrate, Total (as N) .72 mg/L Effluent Qualifying Storm Event E300.0 1370723
Feb 17, 2026 Nitrite Plus Nitrate (as N) .16 mg/L Effluent Qualifying Storm Event A4500NOF 1370723
Feb 17, 2026 Nitrite, Total (as N) ND .029 mg/L Effluent Qualifying Storm Event E300.0 1370723
Feb 17, 2026 Oil and Grease ND .8 mg/L Effluent Qualifying Storm Event E1664A 1370723
Feb 17, 2026 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1370723
Feb 17, 2026 Total Suspended Solids (TSS) 1 mg/L Effluent Qualifying Storm Event A2540D 1370723
Feb 17, 2026 Zinc, Total Recoverable .0828 mg/L Effluent Qualifying Storm Event E200.8 1370723
Nov 21, 2025 Nitrate, Total (as N) 1.66 mg/L Effluent Qualifying Storm Event E300.0 1360063
Nov 21, 2025 Nitrite Plus Nitrate (as N) .37 mg/L Effluent Qualifying Storm Event A4500NOF 1360063
Nov 21, 2025 Nitrite, Total (as N) ND .029 mg/L Effluent Qualifying Storm Event E300.0 1360063
Nov 21, 2025 Oil and Grease ND .8 mg/L Effluent Qualifying Storm Event E1664A 1360063
Nov 21, 2025 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1360063
Nov 21, 2025 Total Suspended Solids (TSS) 1 mg/L Effluent Qualifying Storm Event A2540D 1360063
Nov 21, 2025 Zinc, Total Recoverable .0345 mg/L Effluent Qualifying Storm Event E200.8 1360063
Oct 16, 2025 Nitrate, Total (as N) ND .1 mg/L Effluent Qualifying Storm Event E300.0 1355154
Oct 16, 2025 Nitrite Plus Nitrate (as N) ND .05 mg/L Effluent Qualifying Storm Event A4500NOF 1355154
Oct 16, 2025 Nitrite, Total (as N) ND .029 mg/L Effluent Qualifying Storm Event E300.0 1355154
Oct 16, 2025 Oil and Grease 1 mg/L Effluent Qualifying Storm Event E1664A 1355154
Oct 16, 2025 pH 6.6 SU Effluent Qualifying Storm Event pH_Field 1355154
Oct 16, 2025 Total Suspended Solids (TSS) 2.5 mg/L Effluent Qualifying Storm Event A2540D 1355154
Oct 16, 2025 Zinc, Total Recoverable .063 mg/L Effluent Qualifying Storm Event E200.8 1355154
Mar 12, 2025 Nitrate, Total (as N) ND .1 mg/L Effluent Qualifying Storm Event E300.0 1327792
Mar 12, 2025 Nitrite Plus Nitrate (as N) ND .05 mg/L Effluent Qualifying Storm Event A4500NOF 1327792
Mar 12, 2025 Nitrite, Total (as N) ND .05 mg/L Effluent Qualifying Storm Event E300.0 1327792
Mar 12, 2025 Oil and Grease 1.3 mg/L Effluent Qualifying Storm Event E1664A 1327792
Mar 12, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1327792
Mar 12, 2025 Total Suspended Solids (TSS) ND 1 mg/L Effluent Qualifying Storm Event A2540D 1327792
Mar 12, 2025 Zinc, Total Recoverable .0622 mg/L Effluent Qualifying Storm Event E200.8 1327792
Feb 13, 2025 Nitrate, Total (as N) ND .097 mg/L Effluent Qualifying Storm Event E300.0 1322950
Feb 13, 2025 Nitrite Plus Nitrate (as N) ND .05 mg/L Effluent Qualifying Storm Event E300.0 1322950
Feb 13, 2025 Nitrite, Total (as N) ND .1 mg/L Effluent Qualifying Storm Event E300.0 1322950
Feb 13, 2025 Oil and Grease ND .8 mg/L Effluent Qualifying Storm Event E1664B 1322950
Feb 13, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1322950
Feb 13, 2025 Total Suspended Solids (TSS) 1.6 mg/L Effluent Qualifying Storm Event A2540D 1322950
Feb 13, 2025 Zinc, Total Recoverable .0126 mg/L Effluent Qualifying Storm Event E200.8 1322950
Feb 01, 2024 Nitrite Plus Nitrate (as N) < .14 mg/L Effluent Qualifying Storm Event A4500NOF 1288473
Feb 01, 2024 Oil and Grease < 6 mg/L Effluent Qualifying Storm Event E1664A 1288473
Feb 01, 2024 Total Suspended Solids (TSS) < 10 mg/L Effluent Qualifying Storm Event A2540D 1288473
Feb 01, 2024 Zinc, Total Recoverable .061 mg/L Effluent Qualifying Storm Event E200.8 1288473
Jan 03, 2024 Nitrite Plus Nitrate (as N) < .14 mg/L Effluent Qualifying Storm Event E300.0 1276098
Jan 03, 2024 Oil and Grease < 6 mg/L Effluent Qualifying Storm Event E1664A 1276098
Jan 03, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Field 1276098
Jan 03, 2024 Total Suspended Solids (TSS) < 10 mg/L Effluent Qualifying Storm Event A2540D 1276098
Jan 03, 2024 Zinc, Total Recoverable .10491 mg/L Effluent Qualifying Storm Event E200.8 1276098
Mar 14, 2023 Nitrite Plus Nitrate (as N) .074 mg/L Effluent Qualifying Storm Event A4500NE 1235253
Mar 14, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1235253
Mar 14, 2023 pH 7 SU Effluent Qualifying Storm Event pH_Field 1235253
Mar 14, 2023 Total Suspended Solids (TSS) 24 mg/L Effluent Qualifying Storm Event A2540D 1235253
Mar 14, 2023 Zinc, Total 3.8 mg/L Effluent Qualifying Storm Event E200.8 1235253
Jan 09, 2023 Nitrite Plus Nitrate (as N) .83 mg/L Effluent Qualifying Storm Event A4500NE 1227169

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
Violations5 4 Violation · 0 Potential (preliminary) · 1 Dismissed Feb 13, 2009 – May 19, 2026 Oct 21, 2026 All violations
Enforcement actions5 4 issued · 0 draft · 1 withdrawn, rescinded or superseded Feb 10, 2010 – May 19, 2026 Oct 21, 2026 All actions
Inspections1inspections, not findings Jun 19, 2023 – Jun 19, 2023 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports1reports, by parameter 2023-24 – 2023-24 Oct 21, 2026 All reports

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 (23 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 17, 2026 Annual reports 1335022 Annual report 2025 —
May 19, 2026 Enforcement actions 469940 EPL (Expedited Payment Letter) ActiveR4-2026-0065
May 19, 2026 Violations 904015 Late Report ViolationReport
Jun 19, 2025 Annual reports 1293821 Annual report 2024 —
Jul 25, 2024 Enforcement actions 453725 ACL (Administrative Civil Liability) HistoricalR4-2024-0286
Jul 25, 2024 Violations 889420 Effluent ViolationReport
Jul 08, 2024 Annual reports 1242884 Annual report 2023 —
Oct 02, 2023 Water-quality-based corrective action reports 1267152 WQBCAR 2023-24 —Zinc, Total
Aug 02, 2023 Enforcement actions 450374 ACL (Administrative Civil Liability) HistoricalR4-2023-0266
Aug 02, 2023 Violations 885604 Effluent ViolationReport
Jun 27, 2023 Annual reports 1188871 Annual report 2022 —
Jun 19, 2023 Inspections 2060737 B Type compliance FinalizedNo Further Action
Jun 21, 2022 Annual reports 1112212 Annual report 2021 —
Jul 13, 2021 Annual reports 1068205 Annual report 2020 —
Jun 15, 2020 Annual reports 952966 Annual report 2018 —
Jun 10, 2020 Annual reports 985431 Annual report 2019 —
May 08, 2020 Enforcement actions 437002 NOV (Notice of Violation) Withdrawn
May 08, 2020 Violations 873432 Deficient Report DismissedReport
Jun 25, 2018 Annual reports 938380 Annual report 2017 —
Jun 12, 2017 Annual reports 877593 Annual report 2016 —
Jun 27, 2016 Annual reports 845336 Annual report 2015 —
Feb 10, 2010 Enforcement actions 404710 SEL (Staff Enforcement Letter) Historical
Feb 13, 2009 Violations 843968 Deficient BMP Implementation ViolationReport

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.