Mitsubishi Chemical Carbon Fiber and Composites Inc

Active WDID 8 30I009877 Irvine, 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
Irvine, Orange County
Region 8 · Santa Ana · Location · Statewide map
Receiving water
San Diego 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
278 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
4 inspections · 5 violation records · 7 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
1 record
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
33.6922, -117.84908
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
1822 Reynolds Ave, Irvine 92614
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
Active
Operator
Mitsubishi Rayon Carbon Fiber and Composites Inc
Primary industry (SIC)
2891-Adhesives and Sealants
Secondary SIC
3087-Custom Compounding of Purchased Plastics Resins
Application ID
208700
NOI processed
Mar 30, 1993
Last certified
Oct 19, 2017
Facility size
150540 SqFt
Impervious area
91.4 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
208700 IndustrialActiveMar 30, 1993 —Oct 19, 2017

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

Receiving water

Reported by the facility Evidence: facility-reported
San Diego Creek
Discharges directly / indirectly
Y / N (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)
  • C1 name is only a prefix of official names

2 official waterbodies share 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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Lane Channel (Orange County) CAR8011100020210408049468388 m not listed0

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
San Diego Creek and Newport Bay Toxics TMDLSan Diego Creek WatershedZinc, Total .21 mg/LNEL instantaneous FINAL2020-07-01Y

1 record. 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.

278 distinct measurements across 4 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
2025244 0 Oct 14, 2025Feb 16, 2026
2024164 0 Feb 12, 2025Mar 05, 2025
2023304 0 Nov 15, 2023Feb 05, 2024
2022234 0 Nov 08, 2022May 04, 2023
2021214 0 Oct 25, 2021Dec 14, 2021
2020244 0 Jan 28, 2021Mar 03, 2021
2019124 0 Dec 04, 2019Dec 04, 2019
2018244 0 Jan 14, 2019Jan 31, 2019
2017124 0 Jan 08, 2018Jan 08, 2018
2016484 0 Nov 21, 2016Jan 09, 2017
2015444 0 Sep 15, 2015Feb 17, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Total Suspended Solids (TSS)mg/L71 2Sep 15, 2015Feb 16, 2026 Results
Zinc, Totalmg/L71 0Sep 15, 2015Feb 16, 2026 Results
pHSU69 0Sep 15, 2015Feb 16, 2026 Results
Oil and Greasemg/L67 47Sep 15, 2015Feb 16, 2026 Results

All results (278 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Oil and Grease .97 mg/L Effluent Qualifying Storm Event E1664A 1367749
Feb 16, 2026 Oil and Grease .77 mg/L Effluent Qualifying Storm Event E1664A 1367749
Feb 16, 2026 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1367749
Feb 16, 2026 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1367749
Feb 16, 2026 Total Suspended Solids (TSS) 2.4 mg/L Effluent Qualifying Storm Event A2540D 1367749
Feb 16, 2026 Total Suspended Solids (TSS) 1.9 mg/L Effluent Qualifying Storm Event A2540D 1367749
Feb 16, 2026 Zinc, Total .058 mg/L Effluent Qualifying Storm Event E200.8 1367749
Feb 16, 2026 Zinc, Total .089 mg/L Effluent Qualifying Storm Event E200.8 1367749
Nov 20, 2025 Oil and Grease .58 mg/L Effluent Qualifying Storm Event E1664A 1365216
Nov 20, 2025 Oil and Grease 1.1 mg/L Effluent Qualifying Storm Event E1664A 1365216
Nov 20, 2025 pH 7.5 SU Effluent Qualifying Storm Event pH_Field 1365216
Nov 20, 2025 pH 7.2 SU Effluent Qualifying Storm Event pH_Field 1365216
Nov 20, 2025 Total Suspended Solids (TSS) 1.6 mg/L Effluent Qualifying Storm Event A2540D 1365216
Nov 20, 2025 Total Suspended Solids (TSS) 2.1 mg/L Effluent Qualifying Storm Event A2540D 1365216
Nov 20, 2025 Zinc, Total .07 mg/L Effluent Qualifying Storm Event E200.8 1365216
Nov 20, 2025 Zinc, Total .049 mg/L Effluent Qualifying Storm Event E200.8 1365216
Oct 14, 2025 Oil and Grease .58 mg/L Effluent Qualifying Storm Event E1664A 1350202
Oct 14, 2025 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1350202
Oct 14, 2025 pH 7.4 SU Effluent Qualifying Storm Event pH_Field 1350202
Oct 14, 2025 pH 6.62 SU Effluent Qualifying Storm Event pH_Field 1350202
Oct 14, 2025 Total Suspended Solids (TSS) 2.2 mg/L Effluent Qualifying Storm Event A2540D 1350202
Oct 14, 2025 Total Suspended Solids (TSS) 1.7 mg/L Effluent Qualifying Storm Event A2540D 1350202
Oct 14, 2025 Zinc, Total .11 mg/L Effluent Qualifying Storm Event E200.8 1350202
Oct 14, 2025 Zinc, Total .2 mg/L Effluent Qualifying Storm Event E200.8 1350202
Mar 05, 2025 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1343830
Mar 05, 2025 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1343830
Mar 05, 2025 pH 7.56 SU Effluent Qualifying Storm Event pH_Field 1343830
Mar 05, 2025 pH 7.56 SU Effluent Qualifying Storm Event pH_Field 1343830
Mar 05, 2025 Total Suspended Solids (TSS) 3.3 mg/L Effluent Qualifying Storm Event A2540D 1343830
Mar 05, 2025 Total Suspended Solids (TSS) 2.8 mg/L Effluent Qualifying Storm Event A2540D 1343830
Mar 05, 2025 Zinc, Total .13 mg/L Effluent Qualifying Storm Event E200.8 1343830
Mar 05, 2025 Zinc, Total .087 mg/L Effluent Qualifying Storm Event E200.8 1343830
Feb 12, 2025 Oil and Grease .87 mg/L Effluent Qualifying Storm Event E1664A 1343825
Feb 12, 2025 Oil and Grease .78 mg/L Effluent Qualifying Storm Event E1664A 1343825
Feb 12, 2025 pH 7.51 SU Effluent Qualifying Storm Event pH_Field 1343825
Feb 12, 2025 pH 7.36 SU Effluent Qualifying Storm Event pH_Field 1343825
Feb 12, 2025 Total Suspended Solids (TSS) 1.5 mg/L Effluent Qualifying Storm Event A2540D 1343825
Feb 12, 2025 Total Suspended Solids (TSS) 9.6 mg/L Effluent Qualifying Storm Event A2540D 1343825
Feb 12, 2025 Zinc, Total .084 mg/L Effluent Qualifying Storm Event E200.8 1343825
Feb 12, 2025 Zinc, Total .21 mg/L Effluent Qualifying Storm Event E200.8 1343825
Feb 05, 2024 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1277182
Feb 05, 2024 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1277182
Feb 05, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Field 1277182
Feb 05, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Field 1277182
Feb 05, 2024 Total Suspended Solids (TSS) 1.6 mg/L Effluent Qualifying Storm Event A2540D 1277182
Feb 05, 2024 Total Suspended Solids (TSS) < .8 mg/L Effluent Qualifying Storm Event A2540D 1277182
Feb 05, 2024 Zinc, Total .099 mg/L Effluent Qualifying Storm Event E200.8 1277182
Feb 05, 2024 Zinc, Total .059 mg/L Effluent Qualifying Storm Event E200.8 1277182
Feb 01, 2024 Oil and Grease .68 mg/L Effluent Qualifying Storm Event E1664A 1277177
Feb 01, 2024 Oil and Grease < .49 mg/L Effluent Qualifying Storm Event E1664A 1277177

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
Violations5 5 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 03, 2000 – Aug 01, 2006 Oct 21, 2026 All violations
Enforcement actions7 5 issued · 0 draft · 2 withdrawn, rescinded or superseded Jul 26, 2000 – Aug 04, 2006 Oct 21, 2026 All actions
Inspections4inspections, not findings Mar 15, 2001 – Jun 14, 2011 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, 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 (27 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 14, 2026 Annual reports 1334196 Annual report 2025 —
Jul 11, 2025 Annual reports 1292966 Annual report 2024 —
Jul 12, 2024 Annual reports 1241971 Annual report 2023 —
Jul 18, 2023 Annual reports 1187902 Annual report 2022 —
Jul 15, 2022 Annual reports 1111169 Annual report 2021 —
Jun 29, 2021 Annual reports 1067106 Annual report 2020 —
Jul 13, 2020 Annual reports 984262 Annual report 2019 —
Jul 11, 2019 Annual reports 951765 Annual report 2018 —
Jun 21, 2018 Annual reports 937176 Annual report 2017 —
Jun 15, 2017 Annual reports 876325 Annual report 2016 —
Jun 16, 2016 Annual reports 845713 Annual report 2015 —
Jun 14, 2011 Inspections 2012111 B Type compliance —No Further Action
Aug 04, 2006 Enforcement actions 419404 1st NNC - AR (First Notice of Non-Compliance (annual report)) Rescinded
Aug 01, 2006 Enforcement actions 311794 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Aug 01, 2006 Violations 433658 Late Report ViolationReport
Nov 03, 2005 Enforcement actions 419266 SEL (Staff Enforcement Letter) Rescinded
Oct 27, 2005 Enforcement actions 419108 SEL (Staff Enforcement Letter) Historical
Oct 27, 2005 Violations 857082 Deficient Report ViolationReport
May 26, 2005 Inspections 2003602 B Type compliance —No Further Action
Jul 24, 2002 Inspections 2003601 B Type compliance —No Further Action
Mar 22, 2001 Enforcement actions 233950 SEL (Staff Enforcement Letter) HistoricalUNKNOWN
Mar 22, 2001 Enforcement actions 233979 SEL (Staff Enforcement Letter) HistoricalUNKNOWN
Mar 15, 2001 Inspections 2003599 B Type compliance —No Further Action
Mar 15, 2001 Violations 215555 Deficient BMP Implementation ViolationInspection
Mar 15, 2001 Violations 215692 Deficient BMP Implementation ViolationInspection

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.