Catalina Pacific Concrete Co

Active WDID 4 19I020720 Los Angeles, 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
Los Angeles, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Dominguez Channel (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
None
Monitoring results Evidence: facility-reported
31 distinct results, 6 reporting years (2015 to 2023)
Most recent sample Feb 01, 2024 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 2 violation records · 1 enforcement action
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
33.93454, -118.37229
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
5299 W 111th St, Los Angeles 90045
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Upper Dominguez Channel HUC12 180701060101

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
CalPortland Company
Primary industry (SIC)
3273-Ready-Mixed Concrete
Application ID
321914
NOI processed
Mar 09, 2007
Last certified
Dec 29, 2014
Facility size
4 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
321914 IndustrialActiveMar 09, 2007 —Dec 29, 2014

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

Receiving water

Reported by the facility Evidence: facility-reported
Dominguez Channel
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)
  • 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.

No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.

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.

31 distinct measurements across 4 parameters, most recent sample Feb 01, 2024.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202384 0 Feb 01, 2024Feb 01, 2024
202244 0 Jan 05, 2023Jan 05, 2023
201984 0 Dec 04, 2019Apr 10, 2020
201844 0 Jan 18, 2019Jan 18, 2019
201644 0 Jan 09, 2017Jan 09, 2017
201533 0 Jan 06, 2016Jan 06, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Iron, Totalmg/L8 4Jan 06, 2016Feb 01, 2024 Results
pHSU8 0Jan 06, 2016Feb 01, 2024 Results
Total Suspended Solids (TSS)mg/L8 3Jan 06, 2016Feb 01, 2024 Results
Oil and Greasemg/L7 7Jan 09, 2017Feb 01, 2024 Results

All results (31 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 01, 2024 Iron, Total DNQ .182 mg/L Effluent Qualifying Storm Event E200.7 1279014
Feb 01, 2024 Iron, Total DNQ .151 mg/L Effluent Qualifying Storm Event E200.7 1279014
Feb 01, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1279014
Feb 01, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1279014
Feb 01, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1279014
Feb 01, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1279014
Feb 01, 2024 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1279014
Feb 01, 2024 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1279014
Jan 05, 2023 Iron, Total DNQ .126 mg/L Effluent Qualifying Storm Event E200.7 1230226
Jan 05, 2023 Oil and Grease DNQ 2.14 mg/L Effluent Qualifying Storm Event E1664B 1230226
Jan 05, 2023 pH 8 SU Effluent Qualifying Storm Event pH_Paper 1230226
Jan 05, 2023 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event 1230226
Apr 10, 2020 Iron, Total DNQ .194 mg/L Effluent Qualifying Storm Event E200.7 1108337
Apr 10, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1108337
Apr 10, 2020 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1108337
Apr 10, 2020 Total Suspended Solids (TSS) 16.1 mg/L Effluent Qualifying Storm Event A2540D 1108337
Dec 04, 2019 Iron, Total 1.17 mg/L Effluent Qualifying Storm Event E200.7 1098041
Dec 04, 2019 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1098041
Dec 04, 2019 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1098041
Dec 04, 2019 Total Suspended Solids (TSS) 34.1 mg/L Effluent Qualifying Storm Event A2540D 1098041
Jan 18, 2019 Iron, Total .752 mg/L Effluent Qualifying Storm Event A3111B 1051582
Jan 18, 2019 Oil and Grease DNQ 4.01 mg/L Effluent Qualifying Storm Event A5220B 1051582
Jan 18, 2019 pH 7 SU Effluent Qualifying Storm Event A4500HB 1051582
Jan 18, 2019 Total Suspended Solids (TSS) 91.1 mg/L Effluent Qualifying Storm Event A2540D 1051582
Jan 09, 2017 Iron, Total 5.08 mg/L Effluent Qualifying Storm Event A3111B 919210
Jan 09, 2017 Oil and Grease ND mg/L Effluent Qualifying Storm Event A5220B 919210
Jan 09, 2017 pH 10 SU Effluent Qualifying Storm Event A4500HB 919210
Jan 09, 2017 Total Suspended Solids (TSS) 172 mg/L Effluent Qualifying Storm Event A2540D 919210
Jan 06, 2016 Iron, Total .577 mg/L Effluent Qualifying Storm Event E200.7 866146
Jan 06, 2016 pH 8 SU Effluent Qualifying Storm Event A4500HB 866146
Jan 06, 2016 Total Suspended Solids (TSS) 13.3 mg/L Effluent Qualifying Storm Event A2540D 866146

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
Violations2 2 Violation · 0 Potential (preliminary) · 0 Dismissed Dec 01, 2007 – Dec 20, 2010 Oct 21, 2026 All violations
Enforcement actions1 1 issued · 0 draft · 0 withdrawn, rescinded or superseded Sep 04, 2013 – Sep 04, 2013 Oct 21, 2026 All actions
Inspections1inspections, not findings Aug 08, 2013 – Aug 08, 2013 Oct 21, 2026 All inspections
Annual reports10certified 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 (14 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 14, 2026 Annual reports 1336945 Annual report 2025 —
Jul 14, 2025 Annual reports 1295835 Annual report 2024 —
Jul 08, 2024 Annual reports 1245004 Annual report 2023 —
Jun 01, 2023 Annual reports 1191088 Annual report 2022 —
Jul 07, 2022 Annual reports 1114617 Annual report 2021 —
Jun 29, 2021 Annual reports 1070713 Annual report 2020 —
Jul 10, 2019 Annual reports 955759 Annual report 2018 —
Jul 15, 2018 Annual reports 941182 Annual report 2017 —
Jul 13, 2017 Annual reports 880553 Annual report 2016 —
Jul 15, 2016 Annual reports 838992 Annual report 2015 —
Sep 04, 2013 Enforcement actions 412974 SEL (Staff Enforcement Letter) Historical
Aug 08, 2013 Inspections 2019564 B Type compliance —Additional Info Required
Dec 20, 2010 Violations 851554 Deficient BMP Implementation ViolationReport
Dec 01, 2007 Violations 851555 Deficient BMP Implementation ViolationReport

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.