Interplex Nascal Inc
Terminated WDID 8 30I024652 Tustin, Orange County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Tustin, Orange County
- Region 8 · Santa Ana · 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
- 1 waterbody; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 211 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Dec 20, 2023 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 7 violation records · 8 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
- 33.71553, -117.8407
- 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
- 15777 Gateway Circle, Tustin 92780
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Lower San Diego Creek HUC12 180702040103
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
- Interplex Nascal Inc
- Primary industry (SIC)
- 3469-Metal Stamping, NEC
- Application ID
- 443997
- NOI processed
- Jan 24, 2014
- Termination effective
- Apr 09, 2024
- Last certified
- Jan 11, 2024
- Facility size
- 99414 SqFt
- Impervious area
- 100 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 443997 | Industrial | Terminated | Jan 24, 2014 | Apr 09, 2024 | Jan 11, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Peters Canyon Channel
- 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 |
|---|---|---|---|
| Lane Channel (Orange County) CAR8011100020210408049468 | 412 m | not listed | 0 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
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 |
|---|---|---|---|---|---|---|---|
| San Diego Creek and Newport Bay Toxics TMDL | San Diego Creek Watershed | Copper, Total | .027 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| San Diego Creek and Newport Bay Toxics TMDL | San Diego Creek Watershed | Zinc, Total | .21 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
2 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.
211 distinct measurements across 11 parameters, most recent sample Dec 20, 2023.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 12 | 6 | 0 | Nov 15, 2023 | Dec 20, 2023 |
| 2022 | 30 | 6 | 0 | Nov 08, 2022 | Feb 24, 2023 |
| 2021 | 30 | 6 | 0 | Oct 08, 2021 | Apr 22, 2022 |
| 2020 | 24 | 6 | 0 | Dec 29, 2020 | Mar 11, 2021 |
| 2019 | 24 | 6 | 0 | Nov 20, 2019 | Mar 12, 2020 |
| 2018 | 22 | 8 | 0 | Nov 29, 2018 | Mar 21, 2019 |
| 2017 | 10 | 10 | 0 | Jan 08, 2018 | Jan 08, 2018 |
| 2016 | 35 | 8 | 0 | Nov 21, 2016 | Feb 06, 2017 |
| 2015 | 24 | 7 | 0 | Sep 09, 2015 | Mar 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 33 | 4 | Sep 09, 2015 | Dec 20, 2023 | Results |
| Oil and Grease | mg/L | 33 | 13 | Sep 09, 2015 | Dec 20, 2023 | Results |
| pH | SU | 33 | 0 | Sep 09, 2015 | Dec 20, 2023 | Results |
| Zinc, Total | mg/L | 33 | 1 | Sep 09, 2015 | Dec 20, 2023 | Results |
| Total Suspended Solids (TSS) | mg/L | 32 | 1 | Sep 09, 2015 | Dec 20, 2023 | Results |
| Copper, Total | mg/L | 31 | 1 | Feb 17, 2016 | Dec 20, 2023 | Results |
| Iron, Total | mg/L | 6 | 0 | Jan 05, 2017 | Jan 14, 2019 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 6 | 5 | Jan 05, 2017 | Jan 14, 2019 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 2 | 0 | Sep 09, 2015 | Sep 15, 2015 | Results |
| Nitrate, Total (as N) | mg/L | 1 | 0 | Jan 08, 2018 | Jan 08, 2018 | Results |
| Nitrite, Total (as N) | mg/L | 1 | 0 | Jan 08, 2018 | Jan 08, 2018 | Results |
Total Suspended Solids (TSS) results (32 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 20, 2023 | Total Suspended Solids (TSS) | .9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271686 | |
| Nov 15, 2023 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271025 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229057 | |
| Jan 06, 2023 | Total Suspended Solids (TSS) | 2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1223726 | |
| Dec 29, 2022 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1221685 | |
| Dec 12, 2022 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1220125 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216287 | |
| Apr 22, 2022 | Total Suspended Solids (TSS) | 26 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186243 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1180456 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1176456 | |
| Dec 09, 2021 | Total Suspended Solids (TSS) | 82 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1172169 | |
| Oct 08, 2021 | Total Suspended Solids (TSS) | 44 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1168388 | |
| Mar 11, 2021 | Total Suspended Solids (TSS) | 8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1147240 | |
| Feb 12, 2021 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1144050 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1142233 | |
| Dec 29, 2020 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1138935 | |
| Mar 12, 2020 | Total Suspended Solids (TSS) | 34 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1107731 | |
| Feb 08, 2020 | Total Suspended Solids (TSS) | 32 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1107730 | |
| Nov 27, 2019 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1107729 | |
| Nov 20, 2019 | Total Suspended Solids (TSS) | 86 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1104457 | |
| Mar 21, 2019 | Total Suspended Solids (TSS) | 41 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1052212 | |
| Jan 14, 2019 | Total Suspended Solids (TSS) | 5.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1039457 | |
| Nov 29, 2018 | Total Suspended Solids (TSS) | 9.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1034198 | |
| Jan 08, 2018 | Total Suspended Solids (TSS) | 66 | mg/L | Effluent | Qualifying Storm Event | A2540D | 992373 | |
| Feb 06, 2017 | Total Suspended Solids (TSS) | 8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 926984 | |
| Jan 19, 2017 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 926968 | |
| Jan 05, 2017 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 926982 | |
| Dec 16, 2016 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 926060 | |
| Mar 07, 2016 | Total Suspended Solids (TSS) | 18 | mg/L | Effluent | Qualifying Storm Event | A2540D | 873067 | |
| Feb 17, 2016 | Total Suspended Solids (TSS) | 34 | mg/L | Effluent | Qualifying Storm Event | A2540D | 873063 | |
| Sep 15, 2015 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 872544 | |
| Sep 09, 2015 | Total Suspended Solids (TSS) | 46 | mg/L | Effluent | Qualifying Storm Event | A2540D | 872542 |
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 | 7 | 7 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2014 – Oct 08, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 8 | 8 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jul 31, 2014 – Mar 27, 2023 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jun 04, 2024 – Jun 04, 2024 | Oct 21, 2026 | All inspections |
| Annual reports | 9 | certified reports (contents not shown) | 2015 – 2023 | Oct 21, 2026 | All reports |
| Water-quality-based corrective action reports | 1 | reports, by parameter | 2021-22 – 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 (26 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 04, 2024 | Inspections | 2064552 | NOT | Finalized | No Further Action |
| Apr 09, 2024 | Annual reports | 1246482 | Annual report 2023 | — | |
| Jul 05, 2023 | Annual reports | 1192634 | Annual report 2022 | — | |
| Apr 25, 2023 | Water-quality-based corrective action reports | 1235048 | WQBCAR 2021-22 | — | Copper, Total, Zinc, Total |
| Mar 27, 2023 | Enforcement actions | 449641 | ACL (Administrative Civil Liability) | Historical | R8-2023-0022 |
| Mar 27, 2023 | Enforcement actions | 449642 | 13383 Order (Water Code section 13383 order) | Historical | |
| Jul 06, 2022 | Annual reports | 1116348 | Annual report 2021 | — | |
| Oct 08, 2021 | Violations | 884721 | Late Report | Violation | Report |
| Oct 08, 2021 | Violations | 884722 | Effluent | Violation | Report |
| Jul 20, 2021 | Enforcement actions | 441139 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 20, 2021 | Violations | 877193 | Late Report | Violation | Report |
| Jul 12, 2021 | Annual reports | 1064506 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 981516 | Annual report 2019 | — | |
| Mar 03, 2020 | Enforcement actions | 436456 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 03, 2020 | Enforcement actions | 436081 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 03, 2020 | Enforcement actions | 436087 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 03, 2020 | Enforcement actions | 436096 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 03, 2020 | Violations | 872479 | Late Report | Violation | Report |
| Feb 03, 2020 | Violations | 872485 | Late Report | Violation | Report |
| Feb 03, 2020 | Violations | 872494 | Late Report | Violation | Report |
| Jul 11, 2019 | Annual reports | 957834 | Annual report 2018 | — | |
| Jun 27, 2018 | Annual reports | 943279 | Annual report 2017 | — | |
| Jun 26, 2017 | Annual reports | 882815 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 846863 | Annual report 2015 | — | |
| Jul 31, 2014 | Enforcement actions | 416233 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical |
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.