Shamrock Stucco LLC

Terminated WDID 4 19I020592 Van Nuys, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Terminated Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Van Nuys, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
LA River (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
1 waterbody; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
68 distinct results, 5 reporting years (2015 to 2019)
Most recent sample Dec 04, 2019 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 3 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
34.1794, -118.46289
Precision
4 decimal places
Shared point
2 permits report this exact point
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
15148 Oxnard St, Van Nuys 91411
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Tujunga Wash-Los Angeles River HUC12 180701050208

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
Terminated
Operator
Shamrock Stucco LLC
Primary industry (SIC)
3299-Nonmetallic Mineral Products, NEC
Application ID
315422
NOI processed
Dec 13, 2006
Termination effective
Aug 25, 2020
Last certified
May 20, 2015
Facility size
68500 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
315422 IndustrialTerminatedDec 13, 2006 Aug 25, 2020May 20, 2015

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

Receiving water

Reported by the facility Evidence: facility-reported
LA River
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
Wildlife Lake CAL4052100020110914165823902 m listed1

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.

68 distinct measurements across 4 parameters, most recent sample Dec 04, 2019.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
201963 0 Dec 04, 2019Dec 04, 2019
2018183 0 Dec 06, 2018Mar 06, 2019
2017123 0 Jan 09, 2018Mar 22, 2018
2016244 0 Dec 16, 2016Jan 20, 2017
201584 0 Jan 05, 2016Jan 05, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L20 19Jan 05, 2016Dec 04, 2019 Results
pHSU20 0Jan 05, 2016Dec 04, 2019 Results
Total Suspended Solids (TSS)mg/L20 2Jan 05, 2016Dec 04, 2019 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm8 0Jan 05, 2016Jan 20, 2017 Results

All results (68 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Dec 04, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1109936
Dec 04, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1109936
Dec 04, 2019 pH 7.52 SU Effluent Qualifying Storm Event A4500HB 1109936
Dec 04, 2019 pH 8.26 SU Effluent Qualifying Storm Event A4500HB 1109936
Dec 04, 2019 Total Suspended Solids (TSS) ND .5 mg/L Effluent Qualifying Storm Event A2540D 1109936
Dec 04, 2019 Total Suspended Solids (TSS) 43 mg/L Effluent Qualifying Storm Event A2540D 1109936
Mar 06, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1050555
Mar 06, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1050555
Mar 06, 2019 pH 7.88 SU Effluent Qualifying Storm Event A4500HB 1050555
Mar 06, 2019 pH 7.88 SU Effluent Qualifying Storm Event A4500HB 1050555
Mar 06, 2019 Total Suspended Solids (TSS) 10 mg/L Effluent Qualifying Storm Event A2540D 1050555
Mar 06, 2019 Total Suspended Solids (TSS) 23 mg/L Effluent Qualifying Storm Event A2540D 1050555
Jan 14, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1038210
Jan 14, 2019 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1038210
Jan 14, 2019 pH 7.9 SU Effluent Qualifying Storm Event A4500HB 1038210
Jan 14, 2019 pH 7.64 SU Effluent Qualifying Storm Event A4500HB 1038210
Jan 14, 2019 Total Suspended Solids (TSS) 26 mg/L Effluent Qualifying Storm Event A2540D 1038210
Jan 14, 2019 Total Suspended Solids (TSS) 30 mg/L Effluent Qualifying Storm Event A2540D 1038210
Dec 06, 2018 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1038204
Dec 06, 2018 Oil and Grease ND 1 mg/L Effluent Qualifying Storm Event E1664A 1038204
Dec 06, 2018 pH 7.39 SU Effluent Qualifying Storm Event A4500HB 1038204
Dec 06, 2018 pH 7.13 SU Effluent Qualifying Storm Event A4500HB 1038204
Dec 06, 2018 Total Suspended Solids (TSS) 25 mg/L Effluent Qualifying Storm Event A2540D 1038204
Dec 06, 2018 Total Suspended Solids (TSS) 53 mg/L Effluent Qualifying Storm Event A2540D 1038204
Mar 22, 2018 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5520B 998231
Mar 22, 2018 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5520B 998231
Mar 22, 2018 pH 7.81 SU Effluent Qualifying Storm Event A4500HB 998231
Mar 22, 2018 pH 8.02 SU Effluent Qualifying Storm Event A4500HB 998231
Mar 22, 2018 Total Suspended Solids (TSS) 6 mg/L Effluent Qualifying Storm Event A2540D 998231
Mar 22, 2018 Total Suspended Solids (TSS) 24 mg/L Effluent Qualifying Storm Event A2540D 998231
Jan 09, 2018 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 991957
Jan 09, 2018 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 991957
Jan 09, 2018 pH 7.67 SU Effluent Qualifying Storm Event A4500HB 991957
Jan 09, 2018 pH 7.2 SU Effluent Qualifying Storm Event A4500HB 991957
Jan 09, 2018 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 991957
Jan 09, 2018 Total Suspended Solids (TSS) 7 mg/L Effluent Qualifying Storm Event A2540D 991957
Jan 20, 2017 Electrical Conductivity @ 25 Deg. C 57 umhos/cm Effluent Qualifying Storm Event A2510B 950019
Jan 20, 2017 Electrical Conductivity @ 25 Deg. C 117 umhos/cm Effluent Qualifying Storm Event A2510B 950019
Jan 20, 2017 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 950019
Jan 20, 2017 Oil and Grease 2 mg/L Effluent Qualifying Storm Event A5220B 950019
Jan 20, 2017 pH 7.97 SU Effluent Qualifying Storm Event A4500HB 950019
Jan 20, 2017 pH 7.53 SU Effluent Qualifying Storm Event A4500HB 950019
Jan 20, 2017 Total Suspended Solids (TSS) 13 mg/L Effluent Qualifying Storm Event A2540D 950019
Jan 20, 2017 Total Suspended Solids (TSS) 179 mg/L Effluent Qualifying Storm Event A2540D 950019
Jan 12, 2017 Electrical Conductivity @ 25 Deg. C 127 umhos/cm Effluent Qualifying Storm Event A2510B 950019
Jan 12, 2017 Electrical Conductivity @ 25 Deg. C 123 umhos/cm Effluent Qualifying Storm Event A2510B 950019
Jan 12, 2017 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 950019
Jan 12, 2017 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 950019
Jan 12, 2017 pH 7.72 SU Effluent Qualifying Storm Event A4500HB 950019
Jan 12, 2017 pH 8.1 SU Effluent Qualifying Storm Event A4500HB 950019

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
Violations3 3 Violation · 0 Potential (preliminary) · 0 Dismissed Feb 05, 2009 – Sep 11, 2020 Oct 21, 2026 All violations
Enforcement actions3 3 issued · 0 draft · 0 withdrawn, rescinded or superseded Jun 10, 2010 – Sep 11, 2020 Oct 21, 2026 All actions
Inspections0inspections, not findings — Oct 21, 2026
Annual reports5certified reports (contents not shown) 2015 – 2019 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 (11 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Sep 11, 2020 Enforcement actions 437538 NOV (Notice of Violation) Historical
Sep 11, 2020 Violations 873966 Incomplete/Insufficient SWPPP ViolationReport
Jun 26, 2020 Annual reports 986954 Annual report 2019 —
May 17, 2019 Annual reports 954544 Annual report 2018 —
Jun 14, 2018 Annual reports 939962 Annual report 2017 —
Feb 07, 2018 Enforcement actions 429070 NOV (Notice of Violation) Historical
Jan 01, 2018 Violations 866160 Late Report ViolationReport
Aug 10, 2017 Annual reports 879260 Annual report 2016 —
Aug 10, 2016 Annual reports 846010 Annual report 2015 —
Jun 10, 2010 Enforcement actions 403947 SEL (Staff Enforcement Letter) Historical
Feb 05, 2009 Violations 843467 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.