Hartwell Corporation
Active WDID 8 30I027705 Placentia, Orange County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Placentia, 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
- None
- Monitoring results Evidence: facility-reported
- 219 distinct results, 7 reporting years (2019 to 2025)
- Most recent sample Oct 14, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 1 violation record · 3 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
- 33.86253, -117.82483
- 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
- 1020 Richfield Road, Placentia 92870
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Carbon Creek HUC12 180701060605
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
- Hartwell Corporation
- Primary industry (SIC)
- 3429-Hardware, NEC
- Application ID
- 496269
- NOI processed
- Apr 23, 2018
- Last certified
- Jun 30, 2026
- Facility size
- 17955 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 496269 | Industrial | Active | Apr 23, 2018 | — | Jun 30, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Lower Santa Ana River
- Discharges directly / indirectly
- Y / 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
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.
219 distinct measurements across 7 parameters, most recent sample Oct 14, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 14 | 7 | 0 | Oct 14, 2025 | Oct 14, 2025 |
| 2024 | 42 | 7 | 0 | Feb 07, 2025 | Apr 26, 2025 |
| 2023 | 54 | 7 | 0 | Jan 22, 2024 | Mar 30, 2024 |
| 2022 | 56 | 7 | 0 | Dec 12, 2022 | Mar 21, 2023 |
| 2021 | 27 | 7 | 0 | Oct 26, 2021 | Dec 30, 2021 |
| 2020 | 14 | 7 | 0 | Dec 28, 2020 | Dec 28, 2020 |
| 2019 | 12 | 6 | 0 | Mar 19, 2020 | Mar 19, 2020 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 32 | 2 | Mar 19, 2020 | Oct 14, 2025 | Results |
| Iron, Total | mg/L | 32 | 11 | Mar 19, 2020 | Oct 14, 2025 | Results |
| Oil and Grease | mg/L | 32 | 29 | Mar 19, 2020 | Oct 14, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 32 | 9 | Mar 19, 2020 | Oct 14, 2025 | Results |
| Zinc, Total | mg/L | 32 | 0 | Mar 19, 2020 | Oct 14, 2025 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 30 | 0 | Dec 28, 2020 | Oct 14, 2025 | Results |
| pH | SU | 29 | 0 | Mar 19, 2020 | Oct 14, 2025 | Results |
All results (219 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Oct 14, 2025 | Aluminum, Total | .181 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359404 | |
| Oct 14, 2025 | Aluminum, Total | .108 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359404 | |
| Oct 14, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359404 | |
| Oct 14, 2025 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359404 | |
| Oct 14, 2025 | Nitrite Plus Nitrate (as N) | .16 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1359404 | |
| Oct 14, 2025 | Nitrite Plus Nitrate (as N) | .11 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1359404 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359404 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1359404 | |
| Oct 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1359404 | |
| Oct 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1359404 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359404 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1359404 | |
| Oct 14, 2025 | Zinc, Total | .0119 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359404 | |
| Oct 14, 2025 | Zinc, Total | .0096 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1359404 | |
| Apr 26, 2025 | Aluminum, Total | .077 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331945 | |
| Apr 26, 2025 | Aluminum, Total | .046 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331945 | |
| Apr 26, 2025 | Iron, Total | < .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1331945 | |
| Apr 26, 2025 | Iron, Total | < .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1331945 | |
| Apr 26, 2025 | Nitrite Plus Nitrate (as N) | .34 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1331945 | |
| Apr 26, 2025 | Nitrite Plus Nitrate (as N) | .29 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1331945 | |
| Apr 26, 2025 | Oil and Grease | < 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1331945 | |
| Apr 26, 2025 | Oil and Grease | < 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1331945 | |
| Apr 26, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1331945 | |
| Apr 26, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1331945 | |
| Apr 26, 2025 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1331945 | |
| Apr 26, 2025 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1331945 | |
| Apr 26, 2025 | Zinc, Total | .672 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331945 | |
| Apr 26, 2025 | Zinc, Total | .786 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331945 | |
| Feb 13, 2025 | Aluminum, Total | .0209 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1328709 | |
| Feb 13, 2025 | Aluminum, Total | .0241 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1328709 | |
| Feb 13, 2025 | Iron, Total | .17 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1328709 | |
| Feb 13, 2025 | Iron, Total | .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1328709 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | .24 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1328709 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | .23 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1328709 | |
| Feb 13, 2025 | Oil and Grease | < 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1328709 | |
| Feb 13, 2025 | Oil and Grease | 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1328709 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1328709 | |
| Feb 13, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1328709 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328709 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | .8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328709 | |
| Feb 13, 2025 | Zinc, Total | .0076 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1328709 | |
| Feb 13, 2025 | Zinc, Total | .0171 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1328709 | |
| Feb 07, 2025 | Aluminum, Total | .0095 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1329000 | |
| Feb 07, 2025 | Aluminum, Total | .0094 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1329000 | |
| Feb 07, 2025 | Iron, Total | < .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1329000 | |
| Feb 07, 2025 | Iron, Total | < .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1329000 | |
| Feb 07, 2025 | Nitrite Plus Nitrate (as N) | .45 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1329000 | |
| Feb 07, 2025 | Nitrite Plus Nitrate (as N) | .45 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1329000 | |
| Feb 07, 2025 | Oil and Grease | < 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1329000 | |
| Feb 07, 2025 | Oil and Grease | < 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1329000 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 16, 2019 – Jul 16, 2019 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 12, 2019 – Jan 09, 2020 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Oct 02, 2019 – Oct 02, 2019 | Oct 21, 2026 | All inspections |
| Annual reports | 8 | certified reports (contents not shown) | 2018 – 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 (13 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2026 | Annual reports | 1339856 | Annual report 2025 | — | |
| Jun 18, 2025 | Annual reports | 1298939 | Annual report 2024 | — | |
| Jun 20, 2024 | Annual reports | 1248241 | Annual report 2023 | — | |
| Jul 07, 2023 | Annual reports | 1194487 | Annual report 2022 | — | |
| Jul 15, 2022 | Annual reports | 1118432 | Annual report 2021 | — | |
| Jul 08, 2021 | Annual reports | 1070966 | Annual report 2020 | — | |
| Jun 17, 2020 | Annual reports | 1004045 | Annual report 2019 | — | |
| Jan 09, 2020 | Enforcement actions | 435986 | ACL (Administrative Civil Liability) | Historical | R8-2020-0013 |
| Dec 02, 2019 | Annual reports | 1003779 | Annual report 2018 | — | |
| Oct 02, 2019 | Inspections | 2044563 | Inspection from Vehicle | — | No Further Action |
| Sep 10, 2019 | Enforcement actions | 434030 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Aug 12, 2019 | Enforcement actions | 433722 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 16, 2019 | Violations | 870592 | Late Report | 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.