Mitsubishi Chemical Carbon Fiber and Composites

Active WDID 5S34I000283 Sacramento, Sacramento County Region 5S · Central Valley (Sacramento)

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Sacramento, Sacramento County
Region 5S · Central Valley (Sacramento) · Location · Statewide map
Receiving water
Morrison Creek Canal (as reported by the facility)
Evidence: not confirmed 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; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
530 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Apr 21, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 4 violation records · 3 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 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
38.51902, -121.378
Precision
3 decimal places low precision
Shared point
No
Matches application record
same

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

Facility address
5900 88th, Sacramento 95828
Regional Water Board
5S — Central Valley (Sacramento)

HUC12 watershed Evidence: spatial

  • Upper Morrison Creek HUC12 180201630402

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 Chemical Carbon Fiber and Composites
Primary industry (SIC)
3624-Carbon and Graphite Products
Application ID
200620
NOI processed
Mar 06, 1992
Last certified
Mar 07, 2024
Facility size
10 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
200620 IndustrialActiveMar 06, 1992 —Mar 07, 2024

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

Receiving water

Reported by the facility Evidence: facility-reported
Morrison Creek Canal
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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Morrison Creek CAR519110001998081712304281 m listed5

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

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.

530 distinct measurements across 7 parameters, most recent sample Apr 21, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025726 0 Nov 13, 2025Apr 21, 2026
2024757 0 Nov 20, 2024Mar 12, 2025
2023455 0 Dec 06, 2023Apr 04, 2024
2022575 0 Nov 08, 2022Mar 21, 2023
2021155 0 Nov 08, 2021Nov 08, 2021
2020305 0 Jan 04, 2021Feb 11, 2021
2019605 0 Dec 18, 2019Mar 07, 2020
2018605 0 Nov 21, 2018Feb 13, 2019
2017364 0 Dec 20, 2017Jan 08, 2018
2016484 0 Oct 14, 2016Feb 17, 2017
2015324 0 Dec 03, 2015Mar 10, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Cyanide, Total (as CN)mg/L107 16Dec 03, 2015Apr 21, 2026 Results
Oil and Greasemg/L107 40Dec 03, 2015Apr 21, 2026 Results
Total Suspended Solids (TSS)mg/L107 5Dec 03, 2015Apr 21, 2026 Results
pHSU104 0Dec 03, 2015Apr 21, 2026 Results
Zinc, Totalmg/L78 0Nov 21, 2018Apr 21, 2026 Results
Ammonia, Total (as N)mg/L24 1Nov 20, 2024Apr 21, 2026 Results
Chemical Oxygen Demand (COD)mg/L3 0Nov 20, 2024Nov 20, 2024 Results

All results (530 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Apr 21, 2026 Ammonia, Total (as N) .78 mg/L Effluent Qualifying Storm Event A4500NHF 1372617
Apr 21, 2026 Ammonia, Total (as N) .29 mg/L Effluent Qualifying Storm Event A4500NHF 1372617
Apr 21, 2026 Ammonia, Total (as N) .16 mg/L Effluent Qualifying Storm Event A4500NHF 1372617
Apr 21, 2026 Cyanide, Total (as CN) ND mg/L Effluent Qualifying Storm Event A4500CE 1372617
Apr 21, 2026 Cyanide, Total (as CN) .0021 mg/L Effluent Qualifying Storm Event A4500CE 1372617
Apr 21, 2026 Cyanide, Total (as CN) .0032 mg/L Effluent Qualifying Storm Event A4500CE 1372617
Apr 21, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1372617
Apr 21, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1372617
Apr 21, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1372617
Apr 21, 2026 pH 7.7 SU Effluent Qualifying Storm Event pH_Field 1372617
Apr 21, 2026 pH 7.9 SU Effluent Qualifying Storm Event pH_Field 1372617
Apr 21, 2026 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1372617
Apr 21, 2026 Total Suspended Solids (TSS) 34 mg/L Effluent Qualifying Storm Event A2540D 1372617
Apr 21, 2026 Total Suspended Solids (TSS) 5.5 mg/L Effluent Qualifying Storm Event A2540D 1372617
Apr 21, 2026 Total Suspended Solids (TSS) 16 mg/L Effluent Qualifying Storm Event A2540D 1372617
Apr 21, 2026 Zinc, Total .27 mg/L Effluent Qualifying Storm Event E200.8 1372617
Apr 21, 2026 Zinc, Total .039 mg/L Effluent Qualifying Storm Event E200.8 1372617
Apr 21, 2026 Zinc, Total .16 mg/L Effluent Qualifying Storm Event E200.8 1372617
Apr 01, 2026 Ammonia, Total (as N) 1.8 mg/L Effluent Qualifying Storm Event A4500NHF 1371344
Apr 01, 2026 Ammonia, Total (as N) 1.7 mg/L Effluent Qualifying Storm Event A4500NHF 1371344
Apr 01, 2026 Ammonia, Total (as N) .91 mg/L Effluent Qualifying Storm Event A4500NHF 1371344
Apr 01, 2026 Cyanide, Total (as CN) .0039 mg/L Effluent Qualifying Storm Event A4500CE 1371344
Apr 01, 2026 Cyanide, Total (as CN) .0021 mg/L Effluent Qualifying Storm Event A4500CE 1371344
Apr 01, 2026 Cyanide, Total (as CN) .0025 mg/L Effluent Qualifying Storm Event A4500CE 1371344
Apr 01, 2026 Oil and Grease .86 mg/L Effluent Qualifying Storm Event E1664B 1371344
Apr 01, 2026 Oil and Grease .84 mg/L Effluent Qualifying Storm Event E1664B 1371344
Apr 01, 2026 Oil and Grease .92 mg/L Effluent Qualifying Storm Event E1664B 1371344
Apr 01, 2026 pH 8 SU Effluent Qualifying Storm Event pH_Field 1371344
Apr 01, 2026 pH 7.8 SU Effluent Qualifying Storm Event pH_Field 1371344
Apr 01, 2026 pH 8.3 SU Effluent Qualifying Storm Event pH_Field 1371344
Apr 01, 2026 Total Suspended Solids (TSS) 32 mg/L Effluent Qualifying Storm Event A2540D 1371344
Apr 01, 2026 Total Suspended Solids (TSS) 34 mg/L Effluent Qualifying Storm Event A2540D 1371344
Apr 01, 2026 Total Suspended Solids (TSS) 36 mg/L Effluent Qualifying Storm Event A2540D 1371344
Apr 01, 2026 Zinc, Total .39 mg/L Effluent Qualifying Storm Event E200.8 1371344
Apr 01, 2026 Zinc, Total .058 mg/L Effluent Qualifying Storm Event E200.8 1371344
Apr 01, 2026 Zinc, Total .24 mg/L Effluent Qualifying Storm Event E200.8 1371344
Dec 22, 2025 Ammonia, Total (as N) 1.2 mg/L Effluent Qualifying Storm Event A4500NHF 1363216
Dec 22, 2025 Ammonia, Total (as N) .32 mg/L Effluent Qualifying Storm Event A4500NHF 1363216
Dec 22, 2025 Ammonia, Total (as N) .43 mg/L Effluent Qualifying Storm Event A4500NHF 1363216
Dec 22, 2025 Cyanide, Total (as CN) .0034 mg/L Effluent Qualifying Storm Event A4500CE 1363216
Dec 22, 2025 Cyanide, Total (as CN) .0025 mg/L Effluent Qualifying Storm Event A4500CE 1363216
Dec 22, 2025 Cyanide, Total (as CN) .0025 mg/L Effluent Qualifying Storm Event A4500CE 1363216
Dec 22, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1363216
Dec 22, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1363216
Dec 22, 2025 Oil and Grease 1.1 mg/L Effluent Qualifying Storm Event E1664B 1363216
Dec 22, 2025 pH 6.7 SU Effluent Qualifying Storm Event pH_Field 1363216
Dec 22, 2025 pH 6.4 SU Effluent Qualifying Storm Event pH_Field 1363216
Dec 22, 2025 pH 5.9 SU Effluent Qualifying Storm Event pH_Field 1363216
Dec 22, 2025 Total Suspended Solids (TSS) 64 mg/L Effluent Qualifying Storm Event A2540D 1363216
Dec 22, 2025 Total Suspended Solids (TSS) 32 mg/L Effluent Qualifying Storm Event A2540D 1363216

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
Violations4 4 Violation · 0 Potential (preliminary) · 0 Dismissed Jul 02, 1999 – Jul 15, 2018 Oct 21, 2026 All violations
Enforcement actions3 3 issued · 0 draft · 0 withdrawn, rescinded or superseded May 01, 2008 – Aug 16, 2018 Oct 21, 2026 All actions
Inspections2inspections, not findings Dec 19, 2017 – Sep 03, 2026 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 (20 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Sep 03, 2026 Inspections 2071966 B Type compliance FinalizedNo Further Action
Jun 30, 2026 Annual reports 1334968 Annual report 2025 —
Jun 23, 2025 Annual reports 1293765 Annual report 2024 —
Jul 01, 2024 Annual reports 1242820 Annual report 2023 —
Aug 08, 2023 Annual reports 1188805 Annual report 2022 —
Jul 07, 2022 Annual reports 1112140 Annual report 2021 —
Jun 07, 2021 Annual reports 1068130 Annual report 2020 —
Jul 10, 2020 Annual reports 985350 Annual report 2019 —
Jun 28, 2019 Annual reports 952881 Annual report 2018 —
Aug 17, 2018 Annual reports 938294 Annual report 2017 —
Aug 16, 2018 Enforcement actions 430317 1st NNC - AR (First Notice of Non-Compliance (annual report)) Active
Jul 15, 2018 Violations 867412 Late Report ViolationReport
Dec 19, 2017 Inspections 2036300 B Type compliance —Additional Info Required
Jul 13, 2017 Annual reports 877506 Annual report 2016 —
Dec 12, 2016 Annual reports 842850 Annual report 2015 —
Oct 23, 2009 Enforcement actions 401248 SEL (Staff Enforcement Letter) Historical
Jul 01, 2009 Violations 841071 Deficient BMP Implementation ViolationReport
May 01, 2008 Enforcement actions 347526 SEL (Staff Enforcement Letter) Active
Jul 01, 2007 Violations 765739 Deficient BMP Implementation ViolationStorm Water Discharge
Jul 02, 1999 Violations 169734 Deficient Report 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.