Mitsubishi Cement Corporation
Active WDID 4 19I025334 Long Beach, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Long Beach, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Los Angeles / Long Beach Inner Harbor (as reported by the facility)
- Evidence: identification corroborated Los Angeles - Long Beach Inner Harbor Details
- Identified receiving water on the 2026 303(d) list
- Yes · 8 Appendix A decisions, category 5 Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 2 waterbodies; 2 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 181 distinct results, 6 reporting years (2019 to 2025)
- Most recent sample Feb 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 2 violation records · 2 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
- 33.75125, -118.20951
- 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
- 1150 Pier F Avenue, Long Beach 90802
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Long Beach Harbor HUC12 180701060701
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 Cement Corporation
- Primary industry (SIC)
- 3241-Cement, Hydraulic
- Application ID
- 453372
- NOI processed
- Mar 10, 2015
- Last certified
- Jun 20, 2025
- Facility size
- 4.2 Acres
- Impervious area
- 100 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 453372 | Industrial | Active | Mar 10, 2015 | — | Jun 20, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Los Angeles / Long Beach Inner Harbor
- Discharges directly / indirectly
- N / N (as answered in the permit application)
Evidence: identification corroborated Los Angeles - Long Beach Inner Harbor CAB4051200020050207122133
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 144 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
Los Angeles - Long Beach Inner Harbor is on the 2026 Clean Water Act section 303(d) list (8 Appendix A decisions; category 5).
| Pollutant | Category | Listing decision | TMDL requirement | Decision ID |
|---|---|---|---|---|
| Benthic Community Effects | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 68874 |
| Copper | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 135849 |
| DDD (Dichlorodiphenyldichloroethane) | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 149644 |
| DDE (Dichlorodiphenyldichloroethylene) | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 149645 |
| DDT (Dichlorodiphenyltrichloroethane) | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 149646 |
| PCBs (Polychlorinated biphenyls) | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 135858 |
| Silver | 5 | List on 303(d) list (TMDL required list) | 5A | 135860 |
| Toxicity | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | 5B · Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74) | 135863 |
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Los Angeles - Long Beach Inner Harbor CAB4051200020050207122133 | 144 m | listed | 8 |
| Los Angeles - Long Beach Outer Harbor inside breakwater CAB4051800020050208092107 | 774 m | listed | 5 |
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 |
|---|---|---|---|---|---|---|---|
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Copper, Total | .0058 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Lead, Total | .221 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Zinc, Total | .095 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
3 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.
181 distinct measurements across 8 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 | 48 | 8 | 0 | Oct 14, 2025 | Feb 19, 2026 |
| 2024 | 32 | 8 | 0 | Feb 05, 2025 | Feb 12, 2025 |
| 2023 | 64 | 8 | 0 | Nov 15, 2023 | Jan 22, 2024 |
| 2022 | 20 | 5 | 0 | Dec 12, 2022 | Jan 10, 2023 |
| 2020 | 14 | 5 | 0 | Dec 28, 2020 | Mar 15, 2021 |
| 2019 | 3 | 3 | 0 | Apr 06, 2020 | Apr 06, 2020 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Copper, Total | mg/L | 26 | 0 | Apr 06, 2020 | Feb 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 26 | 0 | Apr 06, 2020 | Feb 19, 2026 | Results |
| Zinc, Total | mg/L | 26 | 0 | Apr 06, 2020 | Feb 19, 2026 | Results |
| pH | SU | 25 | 0 | Dec 28, 2020 | Feb 19, 2026 | Results |
| Oil and Grease | mg/L | 24 | 7 | Mar 03, 2021 | Feb 19, 2026 | Results |
| Aluminum, Total | mg/L | 18 | 0 | Nov 15, 2023 | Feb 19, 2026 | Results |
| Iron, Total | mg/L | 18 | 0 | Nov 15, 2023 | Feb 19, 2026 | Results |
| Lead, Total | mg/L | 18 | 0 | Nov 15, 2023 | Feb 19, 2026 | Results |
All results (181 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 | Aluminum, Total | .69 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Aluminum, Total | .74 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Copper, Total | .0089 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Copper, Total | .017 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Iron, Total | .89 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Iron, Total | 1.1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Lead, Total | .0044 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Lead, Total | .0051 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Oil and Grease | 3.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377088 | |
| Feb 19, 2026 | Oil and Grease | 2.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377088 | |
| Feb 19, 2026 | pH | 7.25 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377088 | |
| Feb 19, 2026 | pH | 7.19 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377088 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 44 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377088 | |
| Feb 19, 2026 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377088 | |
| Feb 19, 2026 | Zinc, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Feb 19, 2026 | Zinc, Total | .35 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377088 | |
| Dec 24, 2025 | Aluminum, Total | .49 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Aluminum, Total | 1.2 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Copper, Total | .0086 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Copper, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Iron, Total | .5 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Iron, Total | 1.4 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Lead, Total | .0028 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Lead, Total | .006 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Oil and Grease | DNQ .91 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377078 | |
| Dec 24, 2025 | Oil and Grease | 1.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377078 | |
| Dec 24, 2025 | pH | 7.15 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377078 | |
| Dec 24, 2025 | pH | 6.97 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377078 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377078 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | 48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377078 | |
| Dec 24, 2025 | Zinc, Total | .16 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Dec 24, 2025 | Zinc, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377078 | |
| Oct 14, 2025 | Aluminum, Total | .53 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Aluminum, Total | .72 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Copper, Total | .032 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Copper, Total | .036 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Iron, Total | .63 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Iron, Total | .85 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Lead, Total | .0041 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Lead, Total | .0045 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377072 | |
| Oct 14, 2025 | Oil and Grease | 2.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377072 | |
| Oct 14, 2025 | pH | 6.91 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377072 | |
| Oct 14, 2025 | pH | 6.83 | SU | Effluent | Qualifying Storm Event | pH_Field | 1377072 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377072 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377072 | |
| Oct 14, 2025 | Zinc, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Oct 14, 2025 | Zinc, Total | .22 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1377072 | |
| Feb 12, 2025 | Aluminum, Total | .17 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322764 | |
| Feb 12, 2025 | Aluminum, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322764 |
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 | 2 | 1 Violation · 0 Potential (preliminary) · 1 Dismissed | Nov 15, 2017 – Jan 01, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 1 issued · 0 draft · 1 withdrawn, rescinded or superseded | Nov 15, 2017 – Feb 12, 2021 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Sep 19, 2023 – Sep 19, 2023 | 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 | 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 (16 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 31, 2026 | Annual reports | 1338710 | Annual report 2025 | — | |
| Jul 14, 2025 | Annual reports | 1297721 | Annual report 2024 | — | |
| Jun 14, 2024 | Annual reports | 1246972 | Annual report 2023 | — | |
| Sep 19, 2023 | Inspections | 2061738 | B Type compliance | Finalized | No Further Action |
| Jul 03, 2023 | Annual reports | 1193151 | Annual report 2022 | — | |
| Jun 28, 2022 | Annual reports | 1116935 | Annual report 2021 | — | |
| Jun 23, 2021 | Annual reports | 1065130 | Annual report 2020 | — | |
| Feb 12, 2021 | Enforcement actions | 440026 | NOV (Notice of Violation) | Withdrawn | |
| Jan 01, 2021 | Violations | 876299 | Late Report | Dismissed | Report |
| Jul 13, 2020 | Annual reports | 982198 | Annual report 2019 | — | |
| Aug 29, 2019 | Annual reports | 958532 | Annual report 2018 | — | |
| Jun 15, 2018 | Annual reports | 943972 | Annual report 2017 | — | |
| Nov 15, 2017 | Enforcement actions | 427915 | NOV (Notice of Violation) | Historical | |
| Nov 15, 2017 | Violations | 864965 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jul 07, 2017 | Annual reports | 883469 | Annual report 2016 | — | |
| Aug 11, 2016 | Annual reports | 839934 | Annual report 2015 | — |
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.