LA City Asphalt Plant II
Active WDID 4 19I001895 North Hollywood, 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
- North Hollywood, 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
- None
- Monitoring results Evidence: facility-reported
- 42 distinct results, 5 reporting years (2016 to 2025)
- Most recent sample Feb 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 2 violation records · 2 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
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
Reported location Evidence: facility-reported
- Coordinates
- 34.20119, -118.39978
- Precision
- 5 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
- 12251 Sherman Way, North Hollywood 91605
- 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
- Active
- Operator
- City of Los Angeles Bureau of Street Services
- Primary industry (SIC)
- 2951-Asphalt Paving Mixtures and Blocks
- Application ID
- 188874
- NOI processed
- Mar 31, 1992
- Last certified
- Dec 24, 2020
- Facility size
- 70898 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 188874 | Industrial | Active | Mar 31, 1992 | — | Dec 24, 2020 |
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.
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.
42 distinct measurements across 4 parameters, most recent sample Feb 19, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Nov 14, 2025 | Feb 19, 2026 |
| 2023 | 3 | 3 | 0 | Dec 21, 2023 | Dec 21, 2023 |
| 2019 | 9 | 3 | 0 | Nov 27, 2019 | Mar 12, 2020 |
| 2017 | 8 | 4 | 0 | Jan 09, 2018 | Mar 14, 2018 |
| 2016 | 16 | 4 | 0 | Dec 16, 2016 | Feb 06, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 12 | 5 | Dec 16, 2016 | Feb 19, 2026 | Results |
| pH | SU | 12 | 0 | Dec 16, 2016 | Feb 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 12 | 0 | Dec 16, 2016 | Feb 19, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 6 | 0 | Dec 16, 2016 | Mar 14, 2018 | Results |
All results (42 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1376744 | |
| Feb 19, 2026 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1376744 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 18.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1376744 | |
| Nov 14, 2025 | Oil and Grease | 7.37 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1376740 | |
| Nov 14, 2025 | pH | 6.63 | SU | Effluent | Qualifying Storm Event | A4500HB | 1376740 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 35 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1376740 | |
| Dec 21, 2023 | Oil and Grease | 5.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1323629 | |
| Dec 21, 2023 | pH | 7.44 | SU | Effluent | Qualifying Storm Event | A4500HB | 1323629 | |
| Dec 21, 2023 | Total Suspended Solids (TSS) | 22.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323629 | |
| Mar 12, 2020 | Oil and Grease | 8.84 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1107789 | |
| Mar 12, 2020 | pH | 7.84 | SU | Effluent | Qualifying Storm Event | A4500HB | 1107789 | |
| Mar 12, 2020 | Total Suspended Solids (TSS) | 144 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1107789 | |
| Dec 04, 2019 | Oil and Grease | 8.9 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1091198 | |
| Dec 04, 2019 | pH | 7.47 | SU | Effluent | Qualifying Storm Event | A4500HB | 1091198 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | 55.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1091198 | |
| Nov 27, 2019 | Oil and Grease | 6.2 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1091198 | |
| Nov 27, 2019 | pH | 7.05 | SU | Effluent | Qualifying Storm Event | A4500HB | 1091198 | |
| Nov 27, 2019 | Total Suspended Solids (TSS) | 82.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1091198 | |
| Mar 14, 2018 | Electrical Conductivity @ 25 Deg. C | 85.4 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 999883 | |
| Mar 14, 2018 | Oil and Grease | ND 8.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 999883 | |
| Mar 14, 2018 | pH | 7.14 | SU | Effluent | Qualifying Storm Event | A4500HB | 999883 | |
| Mar 14, 2018 | Total Suspended Solids (TSS) | 18.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 999883 | |
| Jan 09, 2018 | Electrical Conductivity @ 25 Deg. C | 61.2 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 999883 | |
| Jan 09, 2018 | Oil and Grease | 8.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 999883 | |
| Jan 09, 2018 | pH | 6.76 | SU | Effluent | Qualifying Storm Event | A4500HB | 999883 | |
| Jan 09, 2018 | Total Suspended Solids (TSS) | 31 | mg/L | Effluent | Qualifying Storm Event | A2540D | 999883 | |
| Feb 06, 2017 | Electrical Conductivity @ 25 Deg. C | 33.7 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 918920 | |
| Feb 06, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 918920 | |
| Feb 06, 2017 | pH | 6.42 | SU | Effluent | Qualifying Storm Event | A4500HB | 918920 | |
| Feb 06, 2017 | Total Suspended Solids (TSS) | 8.35 | mg/L | Effluent | Qualifying Storm Event | A2540D | 918920 | |
| Jan 23, 2017 | Electrical Conductivity @ 25 Deg. C | 56.7 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 918920 | |
| Jan 23, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 918920 | |
| Jan 23, 2017 | pH | 6.34 | SU | Effluent | Qualifying Storm Event | A4500HB | 918920 | |
| Jan 23, 2017 | Total Suspended Solids (TSS) | 10.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 918920 | |
| Jan 11, 2017 | Electrical Conductivity @ 25 Deg. C | 35 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 918920 | |
| Jan 11, 2017 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 918920 | |
| Jan 11, 2017 | pH | 7.14 | SU | Effluent | Qualifying Storm Event | A4500HB | 918920 | |
| Jan 11, 2017 | Total Suspended Solids (TSS) | 19.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 918920 | |
| Dec 16, 2016 | Electrical Conductivity @ 25 Deg. C | 75 | umhos/cm | Effluent | Qualifying Storm Event | E120.1 | 918920 | |
| Dec 16, 2016 | Oil and Grease | 20.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 918920 | |
| Dec 16, 2016 | pH | 7.24 | SU | Effluent | Qualifying Storm Event | A4500HB | 918920 | |
| Dec 16, 2016 | Total Suspended Solids (TSS) | 4.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 918920 |
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.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Nov 26, 2008 – Jan 08, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jun 28, 2010 – Jan 08, 2021 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jun 06, 2023 – Jun 06, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | certified reports (contents not shown) | 2015 – 2025 | Oct 21, 2026 | All reports |
| Water-quality-based corrective action reports | 0 | reports, 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 (16 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1337384 | Annual report 2025 | — | |
| Jul 15, 2025 | Annual reports | 1296299 | Annual report 2024 | — | |
| Jul 15, 2024 | Annual reports | 1245501 | Annual report 2023 | — | |
| Jul 13, 2023 | Annual reports | 1191614 | Annual report 2022 | — | |
| Jun 06, 2023 | Inspections | 2060687 | B Type compliance | Finalized | Additional Info Required |
| Jul 15, 2022 | Annual reports | 1115197 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1063291 | Annual report 2020 | — | |
| Jan 08, 2021 | Enforcement actions | 439670 | NOV (Notice of Violation) | Historical | |
| Jan 08, 2021 | Violations | 875963 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jun 26, 2020 | Annual reports | 980173 | Annual report 2019 | — | |
| Jul 09, 2019 | Annual reports | 956429 | Annual report 2018 | — | |
| May 23, 2018 | Annual reports | 941856 | Annual report 2017 | — | |
| Jun 21, 2017 | Annual reports | 881262 | Annual report 2016 | — | |
| Jun 28, 2016 | Annual reports | 846758 | Annual report 2015 | — | |
| Jun 28, 2010 | Enforcement actions | 403995 | SEL (Staff Enforcement Letter) | Historical | |
| Nov 26, 2008 | Violations | 843484 | Deficient BMP Implementation | Violation | Report |
Sources and provenance
| Information | Source | Retrieved or published |
|---|---|---|
| Permit, location, receiving-water text | SMARTS Industrial Application Specific Data | Oct 20, 2026 |
| Permit history | SMARTS Storm Water Applications | Oct 20, 2026 |
| Monitoring results | SMARTS Industrial Parameter Data | Oct 20, 2026 |
| Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12) | USGS | 2026-10-22 |
| 2026 California Integrated Report, Appendix A: 2026 303(d) List (final) | SWRCB | 2026-10-22 |
| Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0) | SWRCB GIS | 2026-10-22 |
| SMARTS TMDL requirements | SMARTS | 2026-10-21 |
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
- Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
- Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
- Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
- Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
- Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
- Evidence: unavailable The information could not be loaded or is not in the sources.
Records are shown as published and are not compliance determinations. How geographic context is derived.