SGL Technic Inc

Active WDID 4 19I011438 Valencia, 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
Valencia, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Santa Clara River Flood Cont (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
2 waterbodies; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
310 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
4 inspections · 4 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
34.43545, -118.58999
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
28176 Avenue Stanford, Valencia 91355
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Salt Canyon-Santa Clara River HUC12 180701020403

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
SGL Technic Inc
Primary industry (SIC)
3624-Carbon and Graphite Products
Application ID
190139
NOI processed
Feb 22, 1995
Last certified
Jun 16, 2015
Facility size
10 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
190139 IndustrialActiveFeb 22, 1995 —Jun 16, 2015

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

Receiving water

Reported by the facility Evidence: facility-reported
Santa Clara River Flood Cont
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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Santa Clara River Reach 5 (Blue Cut gaging station to West Pier Hwy 99 Bridge) (was named Santa Clara River Reach 7 on 2002 303(d) list) CAR4035100019990203102901534 m listed13
Unnamed Tributary to Santa Clara River Reach 5 (Los Angeles County) CAR4035100020220915036626789 m not listed0

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.

310 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
2025324 0 Sep 19, 2025Feb 16, 2026
2024244 0 Jan 26, 2025Feb 05, 2025
2023324 0 Nov 15, 2023Feb 01, 2024
2022324 0 Oct 12, 2022Apr 09, 2023
2021324 0 Oct 25, 2021Mar 28, 2022
2020244 0 Dec 28, 2020Mar 15, 2021
2019324 0 Nov 20, 2019Mar 26, 2020
2018324 0 Nov 21, 2018Jan 31, 2019
2017324 0 Nov 29, 2017Mar 13, 2018
2016324 0 Oct 28, 2016Feb 21, 2017
201563 0 Mar 07, 2016Mar 07, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L78 58Mar 07, 2016Feb 16, 2026 Results
pHSU78 0Mar 07, 2016Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L78 5Mar 07, 2016Feb 16, 2026 Results
Total Organic Carbon (TOC)mg/L76 1Oct 28, 2016Feb 16, 2026 Results

All results (310 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1370928
Feb 16, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1370928
Feb 16, 2026 pH 6.1 SU Effluent Qualifying Storm Event pH_Paper 1370928
Feb 16, 2026 pH 6.2 SU Effluent Qualifying Storm Event pH_Paper 1370928
Feb 16, 2026 Total Organic Carbon (TOC) 3 mg/L Effluent Qualifying Storm Event A5310B 1370928
Feb 16, 2026 Total Organic Carbon (TOC) 3.57 mg/L Effluent Qualifying Storm Event A5310B 1370928
Feb 16, 2026 Total Suspended Solids (TSS) < 5 mg/L Effluent Qualifying Storm Event A2540D 1370928
Feb 16, 2026 Total Suspended Solids (TSS) 10 mg/L Effluent Qualifying Storm Event A2540D 1370928
Feb 11, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1370926
Feb 11, 2026 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1370926
Feb 11, 2026 pH 7.5 SU Effluent Qualifying Storm Event pH_Paper 1370926
Feb 11, 2026 pH 7.1 SU Effluent Qualifying Storm Event pH_Paper 1370926
Feb 11, 2026 Total Organic Carbon (TOC) 4.5 mg/L Effluent Qualifying Storm Event A5310B 1370926
Feb 11, 2026 Total Organic Carbon (TOC) 7.28 mg/L Effluent Qualifying Storm Event A5310B 1370926
Feb 11, 2026 Total Suspended Solids (TSS) < 5 mg/L Effluent Qualifying Storm Event A2540D 1370926
Feb 11, 2026 Total Suspended Solids (TSS) < 5 mg/L Effluent Qualifying Storm Event A2540D 1370926
Oct 14, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1363035
Oct 14, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1363035
Oct 14, 2025 pH 6.8 SU Effluent Qualifying Storm Event pH_Paper 1363035
Oct 14, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1363035
Oct 14, 2025 Total Organic Carbon (TOC) 9.06 mg/L Effluent Qualifying Storm Event A5310B 1363035
Oct 14, 2025 Total Organic Carbon (TOC) 10.9 mg/L Effluent Qualifying Storm Event A5310B 1363035
Oct 14, 2025 Total Suspended Solids (TSS) < 5 mg/L Effluent Qualifying Storm Event A2540D 1363035
Oct 14, 2025 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1363035
Sep 19, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1363862
Sep 19, 2025 Oil and Grease < 5 mg/L Effluent Qualifying Storm Event E1664A 1363862
Sep 19, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Paper 1363862
Sep 19, 2025 pH 6.9 SU Effluent Qualifying Storm Event pH_Paper 1363862
Sep 19, 2025 Total Organic Carbon (TOC) 24.7 mg/L Effluent Qualifying Storm Event A5310B 1363862
Sep 19, 2025 Total Organic Carbon (TOC) 22.9 mg/L Effluent Qualifying Storm Event A5310B 1363862
Sep 19, 2025 Total Suspended Solids (TSS) 29 mg/L Effluent Qualifying Storm Event A2540D 1363862
Sep 19, 2025 Total Suspended Solids (TSS) 26 mg/L Effluent Qualifying Storm Event A2540D 1363862
Feb 05, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1332116
Feb 05, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1332116
Feb 05, 2025 pH 7.7 SU Effluent Qualifying Storm Event pH_Paper 1332116
Feb 05, 2025 pH 7.5 SU Effluent Qualifying Storm Event pH_Paper 1332116
Feb 05, 2025 Total Organic Carbon (TOC) 7.71 mg/L Effluent Qualifying Storm Event A5310B 1332116
Feb 05, 2025 Total Organic Carbon (TOC) 7.39 mg/L Effluent Qualifying Storm Event A5310B 1332116
Feb 05, 2025 Total Suspended Solids (TSS) 14 mg/L Effluent Qualifying Storm Event A2540D 1332116
Feb 05, 2025 Total Suspended Solids (TSS) 27 mg/L Effluent Qualifying Storm Event A2540D 1332116
Jan 26, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1320724
Jan 26, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1320724
Jan 26, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1332108
Jan 26, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1332108
Jan 26, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1320724
Jan 26, 2025 pH 7.4 SU Effluent Qualifying Storm Event pH_Paper 1320724
Jan 26, 2025 pH 7.4 SU Effluent Qualifying Storm Event pH_Paper 1332108
Jan 26, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Paper 1332108
Jan 26, 2025 Total Organic Carbon (TOC) 57.9 mg/L Effluent Qualifying Storm Event A5310B 1320724
Jan 26, 2025 Total Organic Carbon (TOC) 36.9 mg/L Effluent Qualifying Storm Event A5310B 1320724

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 4 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 06, 2002 – Feb 15, 2023 Oct 21, 2026 All violations
Enforcement actions3 3 issued · 0 draft · 0 withdrawn, rescinded or superseded Aug 15, 2002 – Feb 15, 2023 Oct 21, 2026 All actions
Inspections4inspections, not findings Aug 06, 2002 – Jan 25, 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 (22 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 19, 2026 Annual reports 1334338 Annual report 2025 —
Jul 03, 2025 Annual reports 1293114 Annual report 2024 —
Jun 26, 2024 Annual reports 1242128 Annual report 2023 —
Jun 15, 2023 Annual reports 1188073 Annual report 2022 —
Feb 15, 2023 Enforcement actions 449508 NOV (Notice of Violation) Historical
Feb 15, 2023 Violations 884575 Incomplete/Insufficient SWPPP ViolationReport
Jul 12, 2022 Annual reports 1111352 Annual report 2021 —
Jul 09, 2021 Annual reports 1067300 Annual report 2020 —
Jul 08, 2020 Annual reports 984471 Annual report 2019 —
Jul 11, 2019 Annual reports 951978 Annual report 2018 —
Jan 25, 2019 Inspections 2041178 B Type compliance —No Further Action
Jul 13, 2018 Annual reports 937389 Annual report 2017 —
Jan 03, 2018 Inspections 2036041 B Type compliance —No Further Action
May 12, 2017 Annual reports 876548 Annual report 2016 —
Apr 19, 2017 Enforcement actions 425979 NOV (Notice of Violation) Historical
Jun 29, 2016 Annual reports 848153 Annual report 2015 —
Aug 14, 2015 Violations 863062 Incomplete/Insufficient SWPPP ViolationInternal Report
Sep 19, 2002 Inspections 1733050 Enforcement Follow-up —
Aug 15, 2002 Enforcement actions 247484 NOV (Notice of Violation) HistoricalNOV
Aug 06, 2002 Inspections 1733049 B Type compliance —Additional Info Required
Aug 06, 2002 Violations 217864 Deficient BMP Implementation ViolationInspection
Aug 06, 2002 Violations 217866 Deficient BMP Implementation ViolationInspection

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.