Vacco Industries
Active WDID 4 19I002969 South El Monte, 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 El Monte, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- 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
- 1,067 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 18, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 6 violation records · 4 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
- 34.04741, -118.0459
- Precision
- 4 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
- 10350 Vacco St, South El Monte 91733
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Alhambra Wash-Rio Hondo HUC12 180701050303
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
- Vacco Industries
- Primary industry (SIC)
- 3499-Fabricated Metal Products, NEC
- Application ID
- 189073
- NOI processed
- Apr 02, 1992
- Last certified
- Apr 01, 2026
- Facility size
- 3.36 Acres
- Impervious area
- 95 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 189073 | Industrial | Active | Apr 02, 1992 | — | Apr 01, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Whittier Narrows Dam
- Discharges directly / indirectly
- N / — (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 | Waterbody (as reported) | Parameter | Limit | Type | Period | Due | Discharges to TMDL water |
|---|---|---|---|---|---|---|---|
| Los Angeles Area Lakes TMDL | Legg Lakes | Nitrogen, Total (as N) | 1.8 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Cadmium, Total | .0031 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Copper, Total | .06749 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Lead, Total | .094 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Zinc, Total | .159 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Nitrogen TMDL | Los Angeles River Watershed | Nitrate, Total (as N) | 8 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Nitrogen TMDL | Los Angeles River Watershed | Nitrite Plus Nitrate (as N) | 8 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Nitrogen TMDL | Los Angeles River Watershed | Nitrite, Total (as N) | 1 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
8 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.
1,067 distinct measurements across 19 parameters, most recent sample Feb 18, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 48 | 16 | 0 | Oct 14, 2025 | Feb 18, 2026 |
| 2024 | 32 | 16 | 0 | Feb 13, 2025 | Mar 13, 2025 |
| 2023 | 65 | 18 | 0 | Aug 21, 2023 | Mar 06, 2024 |
| 2022 | 74 | 18 | 0 | Nov 08, 2022 | May 04, 2023 |
| 2021 | 90 | 18 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 186 | 18 | 0 | Jan 28, 2021 | Mar 10, 2021 |
| 2019 | 140 | 14 | 0 | Nov 20, 2019 | Apr 06, 2020 |
| 2018 | 152 | 13 | 0 | Nov 29, 2018 | Mar 06, 2019 |
| 2017 | 72 | 12 | 0 | Jan 08, 2018 | Mar 21, 2018 |
| 2016 | 104 | 13 | 0 | Dec 15, 2016 | Mar 21, 2017 |
| 2015 | 104 | 13 | 0 | Sep 15, 2015 | Feb 17, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 74 | 6 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Cadmium, Total | mg/L | 74 | 31 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Chromium (Total) | mg/L | 74 | 17 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Copper, Total | mg/L | 74 | 3 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Iron, Total | mg/L | 74 | 1 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Lead, Total | mg/L | 74 | 20 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Nickel, Total | mg/L | 74 | 24 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 74 | 15 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Zinc, Total | mg/L | 74 | 0 | Sep 15, 2015 | Feb 18, 2026 | Results |
| pH | SU | 73 | 0 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Oil and Grease | mg/L | 72 | 41 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 72 | 14 | Sep 15, 2015 | Feb 18, 2026 | Results |
Show 7 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Zinc, Dissolved | mg/L | 36 | 0 | Dec 05, 2018 | Jan 03, 2024 | Results |
| Copper, Dissolved | mg/L | 28 | 0 | Nov 20, 2019 | Jan 03, 2024 | Results |
| Nitrogen, Total (as N) | mg/L | 28 | 2 | Jan 28, 2021 | Feb 18, 2026 | Results |
| Total Kjeldahl Nitrogen (TKN) (as N) | mg/L | 28 | 1 | Jan 28, 2021 | Feb 18, 2026 | Results |
| Nitrate, Total (as N) | mg/L | 24 | 15 | Mar 03, 2021 | Feb 18, 2026 | Results |
| Nitrite, Total (as N) | mg/L | 24 | 18 | Mar 03, 2021 | Feb 18, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 16 | 0 | Sep 15, 2015 | Mar 21, 2017 | Results |
All results (1,067 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 18, 2026 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Chromium (Total) | .00022 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Copper, Total | .00064 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1370861 | |
| Feb 18, 2026 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Nickel, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Feb 18, 2026 | Nitrate, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1370861 | |
| Feb 18, 2026 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1370861 | |
| Feb 18, 2026 | Nitrite, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1370861 | |
| Feb 18, 2026 | Nitrogen, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1370861 | |
| Feb 18, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1370861 | |
| Feb 18, 2026 | pH | 7.98 | SU | Effluent | Qualifying Storm Event | pH_Field | 1370861 | |
| Feb 18, 2026 | Total Kjeldahl Nitrogen (TKN) (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1370861 | |
| Feb 18, 2026 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1370861 | |
| Feb 18, 2026 | Zinc, Total | .057 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1370861 | |
| Nov 14, 2025 | Aluminum, Total | .099 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Chromium (Total) | .0029 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Copper, Total | .0019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Iron, Total | .16 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362631 | |
| Nov 14, 2025 | Lead, Total | .00041 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Nickel, Total | .0029 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Nov 14, 2025 | Nitrate, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.1 | 1362631 | |
| Nov 14, 2025 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1362631 | |
| Nov 14, 2025 | Nitrite, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1362631 | |
| Nov 14, 2025 | Nitrogen, Total (as N) | .68 | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1362631 | |
| Nov 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1362631 | |
| Nov 14, 2025 | pH | 6.65 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362631 | |
| Nov 14, 2025 | Total Kjeldahl Nitrogen (TKN) (as N) | .68 | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1362631 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362631 | |
| Nov 14, 2025 | Zinc, Total | .11 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362631 | |
| Oct 14, 2025 | Aluminum, Total | .24 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Chromium (Total) | .0023 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Copper, Total | .0039 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Iron, Total | .32 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359795 | |
| Oct 14, 2025 | Lead, Total | .00076 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Nickel, Total | .005 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Oct 14, 2025 | Nitrate, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.1 | 1359795 | |
| Oct 14, 2025 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1359795 | |
| Oct 14, 2025 | Nitrite, Total (as N) | ND | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1359795 | |
| Oct 14, 2025 | Nitrogen, Total (as N) | .43 | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1359795 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1359795 | |
| Oct 14, 2025 | pH | 6.43 | SU | Effluent | Qualifying Storm Event | pH_Field | 1359795 | |
| Oct 14, 2025 | Total Kjeldahl Nitrogen (TKN) (as N) | .43 | mg/L | Effluent | Qualifying Storm Event | E351.2 | 1359795 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359795 | |
| Oct 14, 2025 | Zinc, Total | .21 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359795 | |
| Mar 13, 2025 | Aluminum, Total | .15 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330081 | |
| Mar 13, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1330081 |
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 | 6 | 5 Violation · 1 Potential (preliminary) · 0 Dismissed | Dec 22, 2008 – Apr 27, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 4 issued · 0 draft · 0 withdrawn, rescinded or superseded | Sep 20, 2010 – May 29, 2025 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jul 17, 2002 – Jul 17, 2002 | 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 | 2 | reports, by parameter | 2020-21 – 2021-22 | 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 (24 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1336887 | Annual report 2025 | — | |
| Jul 22, 2025 | Annual reports | 1295774 | Annual report 2024 | — | |
| May 29, 2025 | Enforcement actions | 456163 | EPL (Expedited Payment Letter) | Historical | R4-2025-0034 |
| Jul 11, 2024 | Annual reports | 1244940 | Annual report 2023 | — | |
| Jul 14, 2023 | Annual reports | 1191024 | Annual report 2022 | — | |
| Apr 27, 2023 | Violations | 891392 | Late Report | Violation | Report |
| Jul 14, 2022 | Annual reports | 1114549 | Annual report 2021 | — | |
| Jun 27, 2022 | Water-quality-based corrective action reports | 1187175 | WQBCAR 2021-22 | — | Nitrite, Total (as N), Zinc, Total |
| Jun 27, 2022 | Water-quality-based corrective action reports | 1187176 | WQBCAR 2020-21 | — | Nitrogen, Total (as N), Zinc, Total |
| Apr 28, 2022 | Enforcement actions | 446434 | ACL (Administrative Civil Liability) | Historical | R4-2022-0117 |
| Apr 28, 2022 | Violations | 881632 | Effluent | Violation | Report |
| Mar 05, 2022 | Violations | 891389 | Late Report | Violation | Report |
| Feb 19, 2022 | Violations | 891390 | Late Report | Violation | Report |
| Dec 30, 2021 | Enforcement actions | 444634 | TSO (Time Schedule Order) | Historical | R4-2021-0051 |
| Dec 30, 2021 | Violations | 880714 | Effluent | Potential | Internal Report |
| Jun 25, 2021 | Annual reports | 1070643 | Annual report 2020 | — | |
| Jul 14, 2020 | Annual reports | 988053 | Annual report 2019 | — | |
| Jul 01, 2019 | Annual reports | 955681 | Annual report 2018 | — | |
| Jul 06, 2018 | Annual reports | 941103 | Annual report 2017 | — | |
| Jul 06, 2017 | Annual reports | 880471 | Annual report 2016 | — | |
| Jun 23, 2016 | Annual reports | 839319 | Annual report 2015 | — | |
| Sep 20, 2010 | Enforcement actions | 404604 | SEL (Staff Enforcement Letter) | Historical | |
| Dec 22, 2008 | Violations | 843874 | Deficient BMP Implementation | Violation | Report |
| Jul 17, 2002 | Inspections | 1733398 | B Type compliance | — |
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.