Alloy Die Casting Co

Active WDID 8 30I013785 Buena Park, 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
Buena Park, Orange County
Region 8 · Santa Ana · Location · Statewide map
Receiving water
Fullerton Creek (as reported by the facility)
Evidence: identification corroborated Fullerton Creek Details
Identified receiving water on the 2026 303(d) list
Not on the 2026 303(d) list Evidence: State-published
Describes the waterbody, not this facility · Waterbody profile
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
2 waterbodies; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
781 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
7 inspections · 18 violation records · 17 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
2 records
TMDL records

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

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
33.86566, -118.01945
Precision
5 decimal places
Shared point
2 permits report this exact point
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
6550 Caballero Blvd, Buena Park 90620
Regional Water Board
8 — Santa Ana

HUC12 watershed Evidence: spatial

  • Fullerton Creek HUC12 180701060604

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
Alloy Die Casting Co
Primary industry (SIC)
3363-Aluminum Die-Castings
Application ID
208917
NOI processed
Feb 27, 1998
Last certified
Jan 05, 2024
Facility size
2 Acres

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
208917 IndustrialActiveFeb 27, 1998 —Jan 05, 2024

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
Fullerton Creek
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: identification corroborated Fullerton Creek CAR8456100020161109049702

Receiving water reported by facility — waterbody identification corroborated by geographic evidence.

Nearest distance from the reported facility location: 223 m. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Fullerton Creek is not on the 2026 303(d) list.

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only.. A listing describes the waterbody, not this facility. Waterbody profile.

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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Fullerton Creek CAR8456100020161109049702223 m not listed0
Coyote Creek CAR4051501019980917123914713 m listed8

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 records SMARTS lists for this facility
TMDLWaterbody (as reported)ParameterLimitTypePeriodDueDischarges to TMDL water
R8 - San Gabriel River Metals and Selenium TMDLR8 - Coyote Creek and its tributary/iesCopper, Total .027 mg/LNEL instantaneous FINAL2020-07-01Y
R8 - San Gabriel River Metals and Selenium TMDLR8 - Coyote Creek and its tributary/iesZinc, Total .158 mg/LNEL instantaneous FINAL2020-07-01Y

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.

781 distinct measurements across 17 parameters, most recent sample Feb 16, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025126 0 Feb 16, 2026Feb 16, 2026
2024126 0 Mar 12, 2025Mar 13, 2025
2023246 0 Jan 03, 2024Jan 20, 2024
2022966 0 Nov 08, 2022Feb 24, 2023
2021486 0 Dec 14, 2021Mar 28, 2022
2020486 0 Feb 12, 2021Mar 03, 2021
2019966 0 Nov 27, 2019Apr 06, 2020
2018966 0 Nov 29, 2018Mar 02, 2019
2017528 0 Jan 09, 2018Mar 22, 2018
201612613 0 Dec 21, 2016Feb 06, 2017
201517117 0 Dec 15, 2015Feb 17, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Copper, Totalmg/L105 9Dec 15, 2015Feb 16, 2026 Results
Oil and Greasemg/L105 58Dec 15, 2015Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L105 18Dec 15, 2015Feb 16, 2026 Results
Zinc, Totalmg/L105 1Dec 15, 2015Feb 16, 2026 Results
pHSU97 0Dec 15, 2015Feb 16, 2026 Results
Aluminum, Totalmg/L93 10Feb 17, 2016Feb 16, 2026 Results
Lead, Totalmg/L25 14Dec 15, 2015Mar 22, 2018 Results
Nickel, Totalmg/L25 13Dec 15, 2015Mar 22, 2018 Results
Iron, Totalmg/L22 9Dec 15, 2015Mar 22, 2018 Results
Cadmium, Totalmg/L18 12Dec 15, 2015Jan 19, 2017 Results
Chromium (Total)mg/L18 11Dec 15, 2015Jan 19, 2017 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm18 0Dec 15, 2015Jan 19, 2017 Results
Show 5 more parameters
More parameters
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Nitrate, Total (as N)mg/L18 7Dec 15, 2015Jan 19, 2017 Results
Silver, Totalmg/L12 6Dec 15, 2015Feb 17, 2016 Results
Nitrite, Total (as N)mg/L9 9Dec 22, 2015Feb 17, 2016 Results
Nitrate, Total (as NO3)mg/L3 0Dec 15, 2015Dec 15, 2015 Results
Sodium, Totalmg/L3 0Dec 15, 2015Dec 15, 2015 Results

Copper, Total results (105 distinct rows, show all)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Copper, Total .0063 mg/L Effluent Qualifying Storm Event E200.7 1370719
Feb 16, 2026 Copper, Total .0039 mg/L Effluent Qualifying Storm Event E200.7 1370719
Mar 13, 2025 Copper, Total .028 mg/L Effluent Qualifying Storm Event E200.7 1329972
Mar 12, 2025 Copper, Total .66 mg/L Effluent Qualifying Storm Event E200.7 1329972
Jan 20, 2024 Copper, Total ND mg/L Effluent Qualifying Storm Event E200.7 1276315
Jan 20, 2024 Copper, Total ND mg/L Effluent Qualifying Storm Event E200.7 1276315
Jan 03, 2024 Copper, Total .057 mg/L Effluent Qualifying Storm Event E200.7 1282008
Jan 03, 2024 Copper, Total .056 mg/L Effluent Qualifying Storm Event E200.7 1282008
Feb 24, 2023 Copper, Total .096 mg/L Effluent Qualifying Storm Event E200.7 1238778
Feb 24, 2023 Copper, Total .06 mg/L Effluent Qualifying Storm Event E200.7 1238778
Feb 24, 2023 Copper, Total .066 mg/L Effluent Qualifying Storm Event E200.7 1238778
Feb 24, 2023 Copper, Total .04 mg/L Effluent Qualifying Storm Event E200.7 1238778
Jan 10, 2023 Copper, Total .143 mg/L Effluent Qualifying Storm Event E200.7 1238805
Jan 10, 2023 Copper, Total .03 mg/L Effluent Qualifying Storm Event E200.7 1238805
Jan 10, 2023 Copper, Total .036 mg/L Effluent Qualifying Storm Event E200.7 1238805
Jan 10, 2023 Copper, Total .07 mg/L Effluent Qualifying Storm Event E200.7 1238805
Jan 05, 2023 Copper, Total .051 mg/L Effluent Qualifying Storm Event E200.7 1236416
Jan 05, 2023 Copper, Total .087 mg/L Effluent Qualifying Storm Event E200.7 1236416
Jan 05, 2023 Copper, Total .081 mg/L Effluent Qualifying Storm Event E200.7 1236416
Jan 05, 2023 Copper, Total .093 mg/L Effluent Qualifying Storm Event E200.7 1236416
Nov 08, 2022 Copper, Total .079 mg/L Effluent Qualifying Storm Event E200.7 1236413
Nov 08, 2022 Copper, Total .04 mg/L Effluent Qualifying Storm Event E200.7 1236413
Nov 08, 2022 Copper, Total .034 mg/L Effluent Qualifying Storm Event E200.7 1236413
Nov 08, 2022 Copper, Total .043 mg/L Effluent Qualifying Storm Event E200.7 1236413
Mar 28, 2022 Copper, Total .144 mg/L Effluent Qualifying Storm Event E200.7 1181231
Mar 28, 2022 Copper, Total .1 mg/L Effluent Qualifying Storm Event E200.7 1181231
Mar 28, 2022 Copper, Total .234 mg/L Effluent Qualifying Storm Event E200.7 1181231
Mar 28, 2022 Copper, Total .105 mg/L Effluent Qualifying Storm Event E200.7 1181231
Dec 14, 2021 Copper, Total .074 mg/L Effluent Qualifying Storm Event E200.8 1175137
Dec 14, 2021 Copper, Total .038 mg/L Effluent Qualifying Storm Event E200.8 1175137
Dec 14, 2021 Copper, Total .074 mg/L Effluent Qualifying Storm Event E200.8 1175137
Dec 14, 2021 Copper, Total .103 mg/L Effluent Qualifying Storm Event E200.8 1175137
Mar 03, 2021 Copper, Total .12 mg/L Effluent Qualifying Storm Event E200.8 1144772
Mar 03, 2021 Copper, Total .171 mg/L Effluent Qualifying Storm Event E200.8 1144772
Mar 03, 2021 Copper, Total .119 mg/L Effluent Qualifying Storm Event E200.8 1144772
Mar 03, 2021 Copper, Total .134 mg/L Effluent Qualifying Storm Event E200.8 1144772
Feb 12, 2021 Copper, Total .214 mg/L Effluent Qualifying Storm Event E200.8 1144988
Feb 12, 2021 Copper, Total .265 mg/L Effluent Qualifying Storm Event E200.8 1144988
Feb 12, 2021 Copper, Total .12 mg/L Effluent Qualifying Storm Event E200.8 1144988
Feb 12, 2021 Copper, Total .204 mg/L Effluent Qualifying Storm Event E200.8 1144988
Apr 06, 2020 Copper, Total .018 mg/L Effluent Qualifying Storm Event E200.7 1107031
Apr 06, 2020 Copper, Total .024 mg/L Effluent Qualifying Storm Event E200.7 1107031
Apr 06, 2020 Copper, Total ND mg/L Effluent Qualifying Storm Event E200.7 1107031
Apr 06, 2020 Copper, Total .037 mg/L Effluent Qualifying Storm Event E200.7 1107031
Mar 13, 2020 Copper, Total .037 mg/L Effluent Qualifying Storm Event E200.7 1107029
Mar 13, 2020 Copper, Total .13 mg/L Effluent Qualifying Storm Event E200.7 1107029
Mar 13, 2020 Copper, Total .076 mg/L Effluent Qualifying Storm Event E200.7 1107029
Mar 13, 2020 Copper, Total .146 mg/L Effluent Qualifying Storm Event E200.7 1107029
Dec 04, 2019 Copper, Total .026 mg/L Effluent Qualifying Storm Event E200.7 1107013
Dec 04, 2019 Copper, Total .013 mg/L Effluent Qualifying Storm Event E200.7 1107013

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.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations18 18 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 21, 2001 – Jan 05, 2023 Oct 21, 2026 All violations
Enforcement actions17 15 issued · 0 draft · 2 withdrawn, rescinded or superseded Feb 21, 2002 – Feb 19, 2025 Oct 21, 2026 All actions
Inspections7inspections, not findings Aug 21, 2001 – Mar 28, 2018 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports4reports, by parameter 2020-21 – 2023-24 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 (57 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 15, 2026 Annual reports 1336872 Annual report 2025 —
Jul 11, 2025 Annual reports 1295759 Annual report 2024 —
Feb 19, 2025 Enforcement actions 455509 ACL (Administrative Civil Liability) HistoricalR8-2025-0025
Jul 10, 2024 Annual reports 1244925 Annual report 2023 —
May 02, 2024 Water-quality-based corrective action reports 1284221 WQBCAR 2023-24 —Copper, Total
Jul 14, 2023 Water-quality-based corrective action reports 1250581 WQBCAR 2021-22 —Copper, Total, Zinc, Total
Jul 14, 2023 Water-quality-based corrective action reports 1250585 WQBCAR 2020-21 —Copper, Total, Zinc, Total
Jul 12, 2023 Annual reports 1191008 Annual report 2022 —
Jul 12, 2023 Water-quality-based corrective action reports 1238175 WQBCAR 2022-23 —Copper, Total, Zinc, Total
Jun 19, 2023 Enforcement actions 449970 ACL (Administrative Civil Liability) HistoricalR8-2023-0047
Jun 19, 2023 Enforcement actions 449971 13383 Order (Water Code section 13383 order) Historical
Jan 05, 2023 Violations 890813 Effluent ViolationInternal Report
Jun 21, 2022 Annual reports 1114531 Annual report 2021 —
Mar 28, 2022 Violations 885158 Effluent ViolationInternal Report
Dec 14, 2021 Violations 885156 Late Report ViolationInternal Report
May 19, 2021 Annual reports 1070625 Annual report 2020 —
Mar 03, 2021 Violations 885157 Effluent ViolationInternal Report
Feb 12, 2021 Violations 885155 Late Report ViolationInternal Report
Feb 01, 2021 Enforcement actions 439941 SEL (Staff Enforcement Letter) Historical
Feb 01, 2021 Violations 876226 Late Report ViolationReport
Jun 26, 2020 Annual reports 988034 Annual report 2019 —
Feb 03, 2020 Enforcement actions 436094 SEL (Staff Enforcement Letter) Historical
Feb 03, 2020 Violations 872492 Late Report ViolationReport
Jul 02, 2019 Annual reports 955662 Annual report 2018 —
Jul 16, 2018 Annual reports 941084 Annual report 2017 —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

Records are shown as published and are not compliance determinations. How geographic context is derived.