Carpenter Company
Active WDID 8 33I003477 Riverside, Riverside 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
- Riverside, Riverside County
- Region 8 · Santa Ana · Location · Statewide map
- Receiving water
- Santa Ana River (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
- 166 distinct results, 8 reporting years (2015 to 2025)
- Most recent sample Feb 11, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 4 violation records · 4 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
- 33.92671, -117.40345
- 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
- 7809 Lincoln Avenue, Riverside 92504
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Hole Lake HUC12 180702030803
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
- Carpenter Company
- Primary industry (SIC)
- 3086-Plastics Foam Products
- Application ID
- 210720
- NOI processed
- Apr 03, 1992
- Last certified
- Jun 01, 2015
- Facility size
- 40 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 210720 | Industrial | Active | Apr 03, 1992 | — | Jun 01, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Ana River
- 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
6 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.
166 distinct measurements across 4 parameters, most recent sample Feb 11, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 28 | 4 | 0 | Sep 18, 2025 | Feb 11, 2026 |
| 2024 | 18 | 3 | 0 | Feb 12, 2025 | Mar 13, 2025 |
| 2023 | 9 | 3 | 0 | Nov 15, 2023 | Feb 01, 2024 |
| 2022 | 24 | 3 | 0 | Dec 27, 2022 | Mar 29, 2023 |
| 2021 | 21 | 3 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 12 | 3 | 0 | Jan 29, 2021 | Mar 10, 2021 |
| 2016 | 24 | 3 | 0 | Oct 17, 2016 | Feb 06, 2017 |
| 2015 | 30 | 3 | 0 | Sep 09, 2015 | May 06, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 53 | 12 | Sep 09, 2015 | Feb 11, 2026 | Results |
| pH | SU | 53 | 0 | Sep 09, 2015 | Feb 11, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 53 | 2 | Sep 09, 2015 | Feb 11, 2026 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 7 | 0 | Sep 18, 2025 | Feb 11, 2026 | Results |
All results (166 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 11, 2026 | Chemical Oxygen Demand (COD) | 59 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1367705 | |
| Feb 11, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1367705 | |
| Feb 11, 2026 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367705 | |
| Feb 11, 2026 | Total Suspended Solids (TSS) | 52 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1367705 | |
| Jan 01, 2026 | Chemical Oxygen Demand (COD) | 18 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1364773 | |
| Jan 01, 2026 | Chemical Oxygen Demand (COD) | 13 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1364773 | |
| Jan 01, 2026 | Oil and Grease | 3.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1364773 | |
| Jan 01, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1364773 | |
| Jan 01, 2026 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1364773 | |
| Jan 01, 2026 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1364773 | |
| Jan 01, 2026 | Total Suspended Solids (TSS) | 14 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364773 | |
| Jan 01, 2026 | Total Suspended Solids (TSS) | 49 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364773 | |
| Oct 14, 2025 | Chemical Oxygen Demand (COD) | 210 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1365308 | |
| Oct 14, 2025 | Chemical Oxygen Demand (COD) | 90 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1365308 | |
| Oct 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1365308 | |
| Oct 14, 2025 | Oil and Grease | 4.9 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1365308 | |
| Oct 14, 2025 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1365308 | |
| Oct 14, 2025 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1365308 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 290 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1365308 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1365308 | |
| Sep 18, 2025 | Chemical Oxygen Demand (COD) | 130 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1364256 | |
| Sep 18, 2025 | Chemical Oxygen Demand (COD) | 150 | mg/L | Effluent | Qualifying Storm Event | A5220B | 1364256 | |
| Sep 18, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1364256 | |
| Sep 18, 2025 | Oil and Grease | 5.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1364256 | |
| Sep 18, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1364256 | |
| Sep 18, 2025 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1364256 | |
| Sep 18, 2025 | Total Suspended Solids (TSS) | 91 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364256 | |
| Sep 18, 2025 | Total Suspended Solids (TSS) | 52 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364256 | |
| Mar 13, 2025 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1330637 | |
| Mar 13, 2025 | Oil and Grease | 4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1330637 | |
| Mar 13, 2025 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1330637 | |
| Mar 13, 2025 | pH | 8.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1330637 | |
| Mar 13, 2025 | Total Suspended Solids (TSS) | 78 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1330637 | |
| Mar 13, 2025 | Total Suspended Solids (TSS) | 73 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1330637 | |
| Mar 05, 2025 | Oil and Grease | 3.1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1327165 | |
| Mar 05, 2025 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1327165 | |
| Mar 05, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1327165 | |
| Mar 05, 2025 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1327165 | |
| Mar 05, 2025 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1327165 | |
| Mar 05, 2025 | Total Suspended Solids (TSS) | 150 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1327165 | |
| Feb 21, 2025 | Oil and Grease | 4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1327165 | |
| Feb 21, 2025 | pH | 8.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1327165 | |
| Feb 21, 2025 | Total Suspended Solids (TSS) | 33 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1327165 | |
| Feb 12, 2025 | Oil and Grease | 4.6 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1327165 | |
| Feb 12, 2025 | pH | 9.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1327165 | |
| Feb 12, 2025 | Total Suspended Solids (TSS) | 71 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1327165 | |
| Feb 01, 2024 | Oil and Grease | 3.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1278543 | |
| Feb 01, 2024 | Oil and Grease | 4.1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1278543 | |
| Feb 01, 2024 | pH | 8.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278543 | |
| Feb 01, 2024 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278543 |
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 | 4 | 3 Violation · 0 Potential (preliminary) · 1 Dismissed | Jul 02, 1999 – Jan 24, 2011 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 3 issued · 0 draft · 1 withdrawn, rescinded or superseded | Aug 07, 2007 – Apr 09, 2013 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Jan 24, 2011 – May 31, 2022 | 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 (22 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 06, 2026 | Annual reports | 1334058 | Annual report 2025 | — | |
| Jul 09, 2025 | Annual reports | 1292826 | Annual report 2024 | — | |
| Jul 08, 2024 | Annual reports | 1241821 | Annual report 2023 | — | |
| Jun 12, 2023 | Annual reports | 1187744 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1111001 | Annual report 2021 | — | |
| May 31, 2022 | Inspections | 2056185 | B Type compliance | Performed | No Further Action |
| Jul 06, 2021 | Annual reports | 1066931 | Annual report 2020 | — | |
| Jun 25, 2020 | Annual reports | 984077 | Annual report 2019 | — | |
| Jun 27, 2019 | Annual reports | 951571 | Annual report 2018 | — | |
| Jun 26, 2018 | Annual reports | 936978 | Annual report 2017 | — | |
| Jun 21, 2017 | Annual reports | 876121 | Annual report 2016 | — | |
| Jun 22, 2016 | Annual reports | 845291 | Annual report 2015 | — | |
| Apr 09, 2013 | Enforcement actions | 412155 | Verbal Communication | Active | |
| Apr 09, 2013 | Inspections | 2018586 | B Type compliance | — | Follow-up Inspection Needed |
| Feb 04, 2011 | Enforcement actions | 404120 | SEL (Staff Enforcement Letter) | Active | |
| Jan 24, 2011 | Inspections | 2010524 | B Type compliance | — | No Further Action |
| Jan 24, 2011 | Violations | 843516 | Deficient BMP Implementation | Violation | Inspection |
| Aug 03, 2009 | Enforcement actions | 400606 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | 97-03DWQ |
| Jul 01, 2009 | Violations | 840453 | Late Report | Violation | Report |
| Aug 07, 2007 | Enforcement actions | 329805 | NNC (Notice of Non-Compliance) | Withdrawn | 97-03DWQ |
| Aug 07, 2007 | Violations | 606793 | Late Report | Dismissed | Report |
| Jul 02, 1999 | Violations | 206744 | Deficient Report | Violation | Inspection |
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.