Stone Etc Inc
Active WDID 4 19I026795 Rosewood, 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
- Rosewood, 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
- 45 distinct results, 9 reporting years (2016 to 2024)
- Most recent sample Feb 13, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 1 violation record · 1 enforcement action
- 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
- 33.89703, -118.27945
- 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
- 14815 South Broadway St, Rosewood 90248
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Lower Dominguez Channel HUC12 180701060102
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
- Stone Etc Inc
- Primary industry (SIC)
- 3281-Cut Stone and Stone Products
- Application ID
- 476742
- NOI processed
- Sep 12, 2016
- Last certified
- Jul 11, 2019
- Facility size
- 80000 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 476742 | Industrial | Active | Sep 12, 2016 | — | Jul 11, 2019 |
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.
45 distinct measurements across 3 parameters, most recent sample Feb 13, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2024 | 3 | 3 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2023 | 6 | 3 | 0 | Jan 22, 2024 | Feb 06, 2024 |
| 2022 | 3 | 3 | 0 | Jan 05, 2023 | Jan 05, 2023 |
| 2021 | 3 | 3 | 0 | Dec 14, 2021 | Dec 14, 2021 |
| 2020 | 6 | 3 | 0 | Jan 23, 2021 | Mar 15, 2021 |
| 2019 | 3 | 3 | 0 | Nov 28, 2019 | Nov 28, 2019 |
| 2018 | 3 | 3 | 0 | Mar 06, 2019 | Mar 06, 2019 |
| 2017 | 6 | 3 | 0 | Jan 09, 2018 | Mar 02, 2018 |
| 2016 | 12 | 3 | 0 | Nov 20, 2016 | May 06, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 15 | 11 | Nov 20, 2016 | Feb 13, 2025 | Results |
| pH | SU | 15 | 0 | Nov 20, 2016 | Feb 13, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 15 | 0 | Nov 20, 2016 | Feb 13, 2025 | Results |
All results (45 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 13, 2025 | Oil and Grease | 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1327002 | |
| Feb 13, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1327002 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1327002 | |
| Feb 06, 2024 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281219 | |
| Feb 06, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281219 | |
| Feb 06, 2024 | Total Suspended Solids (TSS) | 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281219 | |
| Jan 22, 2024 | Oil and Grease | ND 2.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1276697 | |
| Jan 22, 2024 | pH | 5.96 | SU | Effluent | Qualifying Storm Event | A4500HB | 1276697 | |
| Jan 22, 2024 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1276697 | |
| Jan 05, 2023 | Oil and Grease | 4.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1226468 | |
| Jan 05, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1226468 | |
| Jan 05, 2023 | Total Suspended Solids (TSS) | 1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1226468 | |
| Dec 14, 2021 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1174968 | |
| Dec 14, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1174968 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1174968 | |
| Mar 15, 2021 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1149773 | |
| Mar 15, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1149773 | |
| Mar 15, 2021 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1149773 | |
| Jan 23, 2021 | Oil and Grease | 7.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1143971 | |
| Jan 23, 2021 | pH | 7.44 | SU | Effluent | Qualifying Storm Event | A4500HB | 1143971 | |
| Jan 23, 2021 | Total Suspended Solids (TSS) | 87 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1143971 | |
| Nov 28, 2019 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1098912 | |
| Nov 28, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1098912 | |
| Nov 28, 2019 | Total Suspended Solids (TSS) | 160 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1098912 | |
| Mar 06, 2019 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1059150 | |
| Mar 06, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1059150 | |
| Mar 06, 2019 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1059150 | |
| Mar 02, 2018 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 995388 | |
| Mar 02, 2018 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 995388 | |
| Mar 02, 2018 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 995388 | |
| Jan 09, 2018 | Oil and Grease | ND 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 992237 | |
| Jan 09, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 992237 | |
| Jan 09, 2018 | Total Suspended Solids (TSS) | 140 | mg/L | Effluent | Qualifying Storm Event | A2540D | 992237 | |
| May 06, 2017 | Oil and Grease | ND | mg/L | Internal | Non-Qualifying Storm Event | E1664A | 933860 | |
| May 06, 2017 | pH | 7.2 | SU | Internal | Non-Qualifying Storm Event | A4500HB | 933860 | |
| May 06, 2017 | Total Suspended Solids (TSS) | 580 | mg/L | Internal | Non-Qualifying Storm Event | A2540D | 933860 | |
| Apr 08, 2017 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 932325 | |
| Apr 08, 2017 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 932325 | |
| Apr 08, 2017 | Total Suspended Solids (TSS) | 90 | mg/L | Effluent | Qualifying Storm Event | A2540D | 932325 | |
| Dec 16, 2016 | Oil and Grease | ND 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 916411 | |
| Dec 16, 2016 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 916411 | |
| Dec 16, 2016 | Total Suspended Solids (TSS) | 16 | mg/L | Effluent | Qualifying Storm Event | A2540D | 916411 | |
| Nov 20, 2016 | Oil and Grease | ND 2.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 912970 | |
| Nov 20, 2016 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 912970 | |
| Nov 20, 2016 | Total Suspended Solids (TSS) | 6.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 912970 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Dec 04, 2019 – Dec 04, 2019 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Dec 04, 2019 – Dec 04, 2019 | Oct 21, 2026 | All actions |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| Annual reports | 10 | certified reports (contents not shown) | 2016 – 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 (12 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 06, 2026 | Annual reports | 1339178 | Annual report 2025 | — | |
| Jun 16, 2025 | Annual reports | 1298214 | Annual report 2024 | — | |
| Jun 11, 2024 | Annual reports | 1247488 | Annual report 2023 | — | |
| Aug 02, 2023 | Annual reports | 1193689 | Annual report 2022 | — | |
| Jun 16, 2022 | Annual reports | 1117540 | Annual report 2021 | — | |
| Jul 15, 2021 | Annual reports | 1065764 | Annual report 2020 | — | |
| Jun 18, 2020 | Annual reports | 982881 | Annual report 2019 | — | |
| Dec 18, 2019 | Annual reports | 959236 | Annual report 2018 | — | |
| Dec 04, 2019 | Enforcement actions | 435471 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Dec 04, 2019 | Violations | 872125 | Late Report | Violation | Report |
| Jul 10, 2018 | Annual reports | 944671 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 900692 | Annual report 2016 | — |
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.