Hyatt Die Casting
Active WDID 8 30I000211 Cypress, 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
- Cypress, Orange County
- Region 8 · Santa Ana · Location · Statewide map
- Receiving water
- Carbon Canyon Creek (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
- 1 waterbody; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 225 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 4 inspections · 17 violation records · 17 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
- 33.83161, -118.05097
- 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
- 4656 Lincoln Ave, Cypress 90630
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Coyote Creek-San Gabriel River HUC12 180701060606
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
- Hyatt Die Casting
- Primary industry (SIC)
- 3363-Aluminum Die-Castings
- Secondary SIC
- 3364-Nonferrous Die-Castings, Except Aluminum
- Application ID
- 208136
- NOI processed
- Mar 02, 1992
- Last certified
- Oct 01, 2020
- Facility size
- 505296 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 |
|---|---|---|---|---|---|
| 208136 | Industrial | Active | Mar 02, 1992 | — | Oct 01, 2020 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Carbon Canyon Creek
- 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)
- C3 facility HUC12 not corroborated
1 official waterbody shares 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Moody Creek (Orange and Los Angeles County) CAR8456100020210709035396 | 679 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 |
|---|---|---|---|---|---|---|---|
| R8 - San Gabriel River Metals and Selenium TMDL | R8 - Coyote Creek and its tributary/ies | Copper, Total | .027 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| R8 - San Gabriel River Metals and Selenium TMDL | R8 - Coyote Creek and its tributary/ies | Zinc, Total | .158 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.
225 distinct measurements across 7 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 | 14 | 7 | 0 | Oct 14, 2025 | Feb 19, 2026 |
| 2024 | 7 | 7 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2023 | 28 | 7 | 0 | Jan 03, 2024 | Feb 20, 2024 |
| 2022 | 35 | 7 | 0 | Nov 08, 2022 | Mar 29, 2023 |
| 2021 | 21 | 7 | 0 | Dec 14, 2021 | Mar 28, 2022 |
| 2020 | 12 | 6 | 0 | Mar 03, 2021 | Mar 10, 2021 |
| 2019 | 24 | 6 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 24 | 6 | 0 | Nov 29, 2018 | Feb 14, 2019 |
| 2017 | 12 | 6 | 0 | Jan 08, 2018 | Mar 22, 2018 |
| 2016 | 30 | 6 | 0 | Dec 15, 2016 | Feb 06, 2017 |
| 2015 | 18 | 6 | 0 | Dec 22, 2015 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 35 | 0 | Dec 22, 2015 | Feb 19, 2026 | Results |
| Copper, Total | mg/L | 35 | 0 | Dec 22, 2015 | Feb 19, 2026 | Results |
| Oil and Grease | mg/L | 35 | 9 | Dec 22, 2015 | Feb 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 35 | 1 | Dec 22, 2015 | Feb 19, 2026 | Results |
| Zinc, Total | mg/L | 35 | 0 | Dec 22, 2015 | Feb 19, 2026 | Results |
| pH | SU | 33 | 0 | Dec 22, 2015 | Feb 19, 2026 | Results |
| Aluminum, Dissolved | mg/L | 17 | 7 | Jan 08, 2018 | Feb 19, 2026 | Results |
All results (225 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 | Aluminum, Dissolved | .219 | mg/L | Effluent | Qualifying Storm Event | 1368900 | ||
| Feb 19, 2026 | Aluminum, Total | .219 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1368900 | |
| Feb 19, 2026 | Copper, Total | .00995 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1368900 | |
| Feb 19, 2026 | Oil and Grease | 2.42 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1368900 | |
| Feb 19, 2026 | pH | 6.2 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1368900 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 6.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1368900 | |
| Feb 19, 2026 | Zinc, Total | .0737 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1368900 | |
| Oct 14, 2025 | Aluminum, Dissolved | .432 | mg/L | Effluent | Qualifying Storm Event | 1355629 | ||
| Oct 14, 2025 | Aluminum, Total | .432 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1355629 | |
| Oct 14, 2025 | Copper, Total | .015 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1355629 | |
| Oct 14, 2025 | Oil and Grease | 1.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1355629 | |
| Oct 14, 2025 | pH | 6.2 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1355629 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 10.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1355629 | |
| Oct 14, 2025 | Zinc, Total | .204 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1355629 | |
| Feb 13, 2025 | Aluminum, Dissolved | .329 | mg/L | Effluent | Qualifying Storm Event | 1323530 | ||
| Feb 13, 2025 | Aluminum, Total | .329 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1323530 | |
| Feb 13, 2025 | Copper, Total | .0129 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1323530 | |
| Feb 13, 2025 | Oil and Grease | .609 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323530 | |
| Feb 13, 2025 | pH | 5.6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1323530 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 10.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323530 | |
| Feb 13, 2025 | Zinc, Total | .135 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1323530 | |
| Feb 20, 2024 | Aluminum, Dissolved | .314 | mg/L | Effluent | Qualifying Storm Event | 1281213 | ||
| Feb 20, 2024 | Aluminum, Total | .314 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1281213 | |
| Feb 20, 2024 | Copper, Total | .0119 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1281213 | |
| Feb 20, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281213 | |
| Feb 20, 2024 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281213 | |
| Feb 20, 2024 | Total Suspended Solids (TSS) | 5.37 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281213 | |
| Feb 20, 2024 | Zinc, Total | .132 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1281213 | |
| Feb 01, 2024 | Aluminum, Dissolved | ND | mg/L | Effluent | Qualifying Storm Event | 1278571 | ||
| Feb 01, 2024 | Aluminum, Total | .289 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1278571 | |
| Feb 01, 2024 | Copper, Total | .0119 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1278571 | |
| Feb 01, 2024 | Oil and Grease | .899 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1278571 | |
| Feb 01, 2024 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1278571 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 8.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1278571 | |
| Feb 01, 2024 | Zinc, Total | .103 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1278571 | |
| Jan 22, 2024 | Aluminum, Dissolved | .1 | mg/L | Effluent | Qualifying Storm Event | 1275429 | ||
| Jan 22, 2024 | Aluminum, Total | .1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1275429 | |
| Jan 22, 2024 | Copper, Total | .00541 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1275429 | |
| Jan 22, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275429 | |
| Jan 22, 2024 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1275429 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 2.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275429 | |
| Jan 22, 2024 | Zinc, Total | .0651 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1275429 | |
| Jan 03, 2024 | Aluminum, Dissolved | ND | mg/L | Effluent | Qualifying Storm Event | 1271938 | ||
| Jan 03, 2024 | Aluminum, Total | .12 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1271938 | |
| Jan 03, 2024 | Copper, Total | .0109 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1271938 | |
| Jan 03, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1271938 | |
| Jan 03, 2024 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1271938 | |
| Jan 03, 2024 | Total Suspended Solids (TSS) | 2.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1271938 | |
| Jan 03, 2024 | Zinc, Total | .101 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1271938 | |
| Mar 29, 2023 | Aluminum, Dissolved | .0914 | mg/L | Effluent | Qualifying Storm Event | 1234241 |
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 | 17 | 16 Violation · 0 Potential (preliminary) · 1 Dismissed | Jul 03, 2000 – Mar 28, 2022 | Oct 21, 2026 | All violations |
| Enforcement actions | 17 | 15 issued · 0 draft · 2 withdrawn, rescinded or superseded | Jul 26, 2000 – May 03, 2023 | Oct 21, 2026 | All actions |
| Inspections | 4 | inspections, not findings | Jan 22, 2001 – May 12, 2011 | 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 | 3 | reports, by parameter | 2022-23 – 2022-23 | 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 (52 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Aug 01, 2016 | Enforcement actions | 423521 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 16, 2016 | Violations | 860685 | Late Report | Violation | Report |
| Sep 09, 2015 | Enforcement actions | 420547 | NNC (Notice of Non-Compliance) | Historical | |
| Aug 15, 2015 | Violations | 858307 | Failure to Obtain Permit | Violation | Report |
| Jan 15, 2015 | Enforcement actions | 418183 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 15, 2015 | Violations | 856236 | Deficient Report | Violation | Report |
| May 12, 2011 | Inspections | 2011750 | B Type compliance | — | No Further Action |
| Jul 30, 2009 | Enforcement actions | 370955 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2009 | Violations | 837553 | Late Report | Violation | Report |
| Aug 01, 2007 | Enforcement actions | 297686 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2007 | Violations | 606992 | Late Report | Violation | Report |
| Aug 31, 2006 | Enforcement actions | 419415 | 2nd NNC - AR (Second Notice of Non-Compliance (annual report)) | Historical | |
| Aug 01, 2006 | Enforcement actions | 419333 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Aug 01, 2006 | Violations | 857182 | Late Report | Violation | Report |
| Oct 27, 2005 | Enforcement actions | 419068 | SEL (Staff Enforcement Letter) | Rescinded | |
| Oct 27, 2005 | Violations | 857042 | Deficient Report | Dismissed | Report |
| Jul 15, 2005 | Enforcement actions | 418716 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Rescinded | |
| Jul 15, 2005 | Violations | 856958 | Late Report | Violation | Report |
| Jun 29, 2004 | Inspections | 2002026 | B Type compliance | — | No Further Action |
| Jun 13, 2002 | Enforcement actions | 247917 | SEL (Staff Enforcement Letter) | Historical | |
| Mar 19, 2002 | Inspections | 2001999 | B Type compliance | — | No Further Action |
| Mar 19, 2002 | Violations | 214407 | Deficient BMP Implementation | Violation | Inspection |
| Mar 08, 2001 | Enforcement actions | 233758 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 22, 2001 | Violations | 215129 | Deficient BMP Implementation | Violation | Inspection |
| Jan 22, 2001 | Inspections | 2001997 | B Type compliance | — | Follow-up Inspection Needed |
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.