Granitize

Active WDID 4 19I019718 South Gate, 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
South Gate, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Los Angeles River (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
99 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 19, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 4 violation records · 5 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
33.92893, -118.16742
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
11022 Vulcan St, South Gate 90280
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Compton Creek-Los Angeles River HUC12 180701050402

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
Granitize
Primary industry (SIC)
2899-Chemicals and Chemical Preparations, NEC
Application ID
293213
NOI processed
Aug 08, 2005
Last certified
Jun 11, 2015
Facility size
53461 SqFt

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
293213 IndustrialActiveAug 08, 2005 —Jun 11, 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
Discharges directly / indirectly
N / Y (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

7 official waterbodies share 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
Rio Hondo Reach 1 (Confl. LA River to Snt Ana Fwy) CAR4051501019990202112624790 m listed8
Los Angeles River Reach 2 (Carson to Figueroa Street) CAR4051501019990202085021816 m listed9

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.

99 distinct measurements across 4 parameters, most recent sample Feb 19, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202593 0 Oct 14, 2025Feb 19, 2026
202484 0 Feb 07, 2025Feb 13, 2025
2023124 0 Dec 20, 2023Feb 20, 2024
2022124 0 Nov 08, 2022Feb 24, 2023
202163 0 Oct 25, 2021Mar 28, 2022
202044 0 Jan 29, 2021Jan 29, 2021
201993 0 Nov 27, 2019Apr 09, 2020
2018123 0 Nov 29, 2018Mar 06, 2019
201763 0 Jan 09, 2018Mar 22, 2018
201693 0 Dec 22, 2016Feb 03, 2017
2015123 0 Sep 15, 2015Apr 08, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L30 29Sep 15, 2015Feb 19, 2026 Results
pHSU30 0Sep 15, 2015Feb 19, 2026 Results
Total Suspended Solids (TSS)mg/L30 9Sep 15, 2015Feb 19, 2026 Results
Ammonia, Total (as N)mg/L9 0Jan 29, 2021Feb 13, 2025 Results

All results (99 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 19, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1368363
Feb 19, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1368363
Feb 19, 2026 Total Suspended Solids (TSS) < 5 mg/L Effluent Qualifying Storm Event A2540D 1368363
Nov 20, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1361900
Nov 20, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1361900
Nov 20, 2025 Total Suspended Solids (TSS) 6.6 mg/L Effluent Qualifying Storm Event A2540D 1361900
Oct 14, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1355617
Oct 14, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1355617
Oct 14, 2025 Total Suspended Solids (TSS) 19 mg/L Effluent Qualifying Storm Event A2540D 1355617
Feb 13, 2025 Ammonia, Total (as N) .11 mg/L Effluent Qualifying Storm Event E350.1 1326495
Feb 13, 2025 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1326495
Feb 13, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1326495
Feb 13, 2025 Total Suspended Solids (TSS) 7 mg/L Effluent Qualifying Storm Event A2540D 1326495
Feb 07, 2025 Ammonia, Total (as N) .16 mg/L Effluent Qualifying Storm Event E350.1 1322365
Feb 07, 2025 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1322365
Feb 07, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1322365
Feb 07, 2025 Total Suspended Solids (TSS) 4 mg/L Effluent Qualifying Storm Event A2540D 1322365
Feb 20, 2024 Ammonia, Total (as N) .08 mg/L Effluent Qualifying Storm Event E350.1 1281026
Feb 20, 2024 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1281026
Feb 20, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1281026
Feb 20, 2024 Total Suspended Solids (TSS) < .4 mg/L Effluent Qualifying Storm Event A2540D 1281026
Jan 22, 2024 Ammonia, Total (as N) .23 mg/L Effluent Qualifying Storm Event E350.1 1275060
Jan 22, 2024 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1275060
Jan 22, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1275060
Jan 22, 2024 Total Suspended Solids (TSS) .8 mg/L Effluent Qualifying Storm Event A2540D 1275060
Dec 20, 2023 Ammonia, Total (as N) .25 mg/L Effluent Qualifying Storm Event E350.1 1271389
Dec 20, 2023 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1271389
Dec 20, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1271389
Dec 20, 2023 Total Suspended Solids (TSS) 16 mg/L Effluent Qualifying Storm Event A2540D 1271389
Feb 24, 2023 Ammonia, Total (as N) .66 mg/L Effluent Qualifying Storm Event E350.1 1224895
Feb 24, 2023 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1224895
Feb 24, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1224895
Feb 24, 2023 Total Suspended Solids (TSS) 29 mg/L Effluent Qualifying Storm Event A2540D 1224895
Jan 04, 2023 Ammonia, Total (as N) .19 mg/L Effluent Qualifying Storm Event E350.1 1227376
Jan 04, 2023 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1227376
Jan 04, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1227376
Jan 04, 2023 Total Suspended Solids (TSS) 22 mg/L Effluent Qualifying Storm Event A2540D 1227376
Nov 08, 2022 Ammonia, Total (as N) .15 mg/L Effluent Qualifying Storm Event E350.1 1217028
Nov 08, 2022 Oil and Grease < 3 mg/L Effluent Qualifying Storm Event E1664A 1217028
Nov 08, 2022 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1217028
Nov 08, 2022 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1217028
Mar 28, 2022 Oil and Grease < 1 mg/L Effluent Qualifying Storm Event E1664A 1179742
Mar 28, 2022 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1179742
Mar 28, 2022 Total Suspended Solids (TSS) 106 mg/L Effluent Qualifying Storm Event A2540D 1179742
Oct 25, 2021 Oil and Grease < 1 mg/L Effluent Qualifying Storm Event E1664A 1168749
Oct 25, 2021 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1168749
Oct 25, 2021 Total Suspended Solids (TSS) 40 mg/L Effluent Qualifying Storm Event A2540D 1168749
Jan 29, 2021 Ammonia, Total (as N) .05 mg/L Effluent Qualifying Storm Event E350.1 1144353
Jan 29, 2021 Oil and Grease < 1 mg/L Effluent Qualifying Storm Event E1664A 1144353
Jan 29, 2021 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1144353

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
Violations4 3 Violation · 0 Potential (preliminary) · 1 Dismissed Aug 01, 2008 – Dec 06, 2023 Oct 21, 2026 All violations
Enforcement actions5 3 issued · 0 draft · 2 withdrawn, rescinded or superseded Jun 16, 2009 – Dec 06, 2023 Oct 21, 2026 All actions
Inspections1inspections, not findings Nov 18, 2009 – Nov 18, 2009 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 (21 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
May 05, 2026 Annual reports 1334403 Annual report 2025 —
Jun 11, 2025 Annual reports 1293185 Annual report 2024 —
Jun 18, 2024 Annual reports 1242204 Annual report 2023 —
Dec 06, 2023 Enforcement actions 451648 NOV (Notice of Violation) Historical
Dec 06, 2023 Violations 886753 Incomplete/Insufficient SWPPP ViolationReport
Jun 06, 2023 Annual reports 1188155 Annual report 2022 —
Jul 06, 2022 Annual reports 1111438 Annual report 2021 —
Jul 13, 2021 Annual reports 1067393 Annual report 2020 —
Jul 08, 2020 Annual reports 984571 Annual report 2019 —
Jul 01, 2019 Annual reports 952081 Annual report 2018 —
Jun 12, 2018 Annual reports 937494 Annual report 2017 —
Jun 07, 2017 Annual reports 876660 Annual report 2016 —
Jul 06, 2016 Annual reports 847339 Annual report 2015 —
Jan 26, 2011 Enforcement actions 404744 EPL (Expedited Payment Letter) WithdrawnR4-2011-0017-SW
May 13, 2010 Enforcement actions 403583 SEL (Staff Enforcement Letter) Historical
Dec 10, 2009 Enforcement actions 400996 NOV (Notice of Violation) Rescinded
Nov 18, 2009 Inspections 2000755 B Type compliance —Follow-up Inspection Needed
Nov 18, 2009 Violations 840838 Deficient BMP Implementation DismissedInspection
Jun 16, 2009 Enforcement actions 401359 1st NNC - AR (First Notice of Non-Compliance (annual report)) Active
Nov 04, 2008 Violations 843244 Deficient BMP Implementation ViolationReport
Aug 01, 2008 Violations 841187 Late Report 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.