Unical Aviation
Terminated WDID 4 19I026555 City Of Industry, 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
- City Of Industry, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- East San Gabriel Valley River Watershed (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
- 234 distinct results, 6 reporting years (2016 to 2021)
- Most recent sample Mar 28, 2022 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 3 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
- 34.00546, -117.85364
- 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
- 680 S Lemon Avenue, City Of Industry 91789
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Upper San Jose Creek HUC12 180701060501
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
- Unical Technical Services
- Primary industry (SIC)
- 3728-Aircraft Parts and Auxiliary Equipment, NEC
- Application ID
- 470299
- NOI processed
- Apr 26, 2016
- Termination effective
- Jun 26, 2023
- Last certified
- Oct 06, 2023
- Facility size
- 24 Acres
- Impervious area
- 99 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 470299 | Industrial | Terminated | Apr 26, 2016 | Jun 26, 2023 | Oct 06, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- East San Gabriel Valley River Watershed
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| San Jose Creek Reach 1 (SG Confluence to Temple St.) CAR4053100019980918090950 | 601 m | listed | 5 |
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.
234 distinct measurements across 5 parameters, most recent sample Mar 28, 2022.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2021 | 48 | 4 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 32 | 4 | 0 | Jan 29, 2021 | Mar 10, 2021 |
| 2019 | 32 | 4 | 0 | Dec 04, 2019 | Dec 04, 2019 |
| 2018 | 40 | 4 | 0 | Nov 29, 2018 | May 16, 2019 |
| 2017 | 12 | 4 | 0 | Mar 21, 2018 | Mar 21, 2018 |
| 2016 | 70 | 5 | 0 | Oct 17, 2016 | Feb 06, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 57 | 55 | Oct 17, 2016 | Mar 28, 2022 | Results |
| pH | SU | 57 | 0 | Oct 17, 2016 | Mar 28, 2022 | Results |
| Total Suspended Solids (TSS) | mg/L | 57 | 4 | Oct 17, 2016 | Mar 28, 2022 | Results |
| Total Organic Carbon (TOC), Percent Removal | % | 49 | 0 | Oct 17, 2016 | Mar 28, 2022 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 14 | 0 | Oct 17, 2016 | Feb 06, 2017 | Results |
All results (234 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 28, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1180100 | |
| Mar 28, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1180100 | |
| Mar 28, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1180100 | |
| Mar 28, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1180100 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1180100 | |
| Mar 28, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1180100 | |
| Mar 28, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1180100 | |
| Mar 28, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1180100 | |
| Mar 28, 2022 | Total Organic Carbon (TOC), Percent Removal | 7.5 | % | Effluent | Qualifying Storm Event | 1180100 | ||
| Mar 28, 2022 | Total Organic Carbon (TOC), Percent Removal | 23 | % | Effluent | Qualifying Storm Event | 1180100 | ||
| Mar 28, 2022 | Total Organic Carbon (TOC), Percent Removal | 3.5 | % | Effluent | Qualifying Storm Event | 1180100 | ||
| Mar 28, 2022 | Total Organic Carbon (TOC), Percent Removal | 3.8 | % | Effluent | Qualifying Storm Event | 1180100 | ||
| Mar 28, 2022 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180100 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180100 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180100 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180100 | |
| Dec 14, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173749 | |
| Dec 14, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173749 | |
| Dec 14, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173749 | |
| Dec 14, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173749 | |
| Dec 14, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173749 | |
| Dec 14, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173749 | |
| Dec 14, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173749 | |
| Dec 14, 2021 | pH | 9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173749 | |
| Dec 14, 2021 | Total Organic Carbon (TOC), Percent Removal | 5.4 | % | Effluent | Qualifying Storm Event | 1173749 | ||
| Dec 14, 2021 | Total Organic Carbon (TOC), Percent Removal | 24 | % | Effluent | Qualifying Storm Event | 1173749 | ||
| Dec 14, 2021 | Total Organic Carbon (TOC), Percent Removal | 1.8 | % | Effluent | Qualifying Storm Event | 1173749 | ||
| Dec 14, 2021 | Total Organic Carbon (TOC), Percent Removal | 1.7 | % | Effluent | Qualifying Storm Event | 1173749 | ||
| Dec 14, 2021 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173749 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173749 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173749 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173749 | |
| Oct 25, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169869 | |
| Oct 25, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169869 | |
| Oct 25, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1169869 | |
| Oct 25, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1169869 | |
| Oct 25, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1169869 | |
| Oct 25, 2021 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1169869 | |
| Oct 25, 2021 | Total Organic Carbon (TOC), Percent Removal | 12 | % | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Total Organic Carbon (TOC), Percent Removal | 27 | % | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Total Organic Carbon (TOC), Percent Removal | 10 | % | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Total Organic Carbon (TOC), Percent Removal | 4.6 | % | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | 1169869 | ||
| Oct 25, 2021 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169869 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169869 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1169869 | |
| Mar 10, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1147133 | |
| Mar 10, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1147133 |
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 | 3 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Aug 24, 2017 – Sep 21, 2018 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Dec 01, 2017 – Sep 21, 2018 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Aug 24, 2017 – Jul 28, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 8 | certified reports (contents not shown) | 2015 – 2022 | 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 28, 2023 | Inspections | 2061265 | NOT | Finalized | No Further Action |
| Jun 26, 2023 | Annual reports | 1193301 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1117103 | Annual report 2021 | — | |
| Jul 09, 2021 | Annual reports | 1065303 | Annual report 2020 | — | |
| Jul 01, 2020 | Annual reports | 982383 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 958723 | Annual report 2018 | — | |
| Sep 21, 2018 | Enforcement actions | 430720 | NTC (Notice to Comply) | Historical | |
| Sep 21, 2018 | Inspections | 2039579 | B Type compliance | — | Additional Info Required |
| Sep 21, 2018 | Violations | 867972 | Deficient BMP Implementation | Violation | Inspection |
| Jul 06, 2018 | Annual reports | 944159 | Annual report 2017 | — | |
| Dec 01, 2017 | Enforcement actions | 427953 | NOV (Notice of Violation) | Historical | |
| Aug 24, 2017 | Inspections | 2035009 | B Type compliance | — | No Further Action |
| Aug 24, 2017 | Violations | 865006 | Deficient BMP Implementation | Violation | Inspection |
| Aug 24, 2017 | Violations | 865007 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| Jul 10, 2017 | Annual reports | 883626 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 871062 | Annual report 2015 | — |
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.