Jp Weaver Co
Active WDID 4 19I013797 Glendale, 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
- Glendale, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- 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
- 2 waterbodies; 2 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 56 distinct results, 7 reporting years (2015 to 2025)
- Most recent sample Feb 18, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 10 violation records · 8 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
- 34.15904, -118.28091
- 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
- 941 Air Way, Glendale 91201
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Tujunga Wash-Los Angeles River HUC12 180701050208
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
- JP Weaver Co
- Primary industry (SIC)
- 3299-Nonmetallic Mineral Products, NEC
- Application ID
- 190607
- NOI processed
- Mar 11, 1998
- Last certified
- Aug 14, 2015
- Facility size
- 12500 SqFt
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 190607 | Industrial | Active | Mar 11, 1998 | — | Aug 14, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- La River
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Los Angeles River Reach 3 (Figueroa St. to Riverside Dr.) CAR4052100019990202090157 | 331 m | listed | 5 |
| Verdugo Wash Reach 1 (LA River to Verdugo Rd.) CAR4052100019990202133541 | 607 m | listed | 3 |
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.
56 distinct measurements across 4 parameters, most recent sample Feb 18, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 9 | 3 | 0 | Nov 14, 2025 | Feb 18, 2026 |
| 2024 | 6 | 3 | 0 | Feb 06, 2025 | Mar 05, 2025 |
| 2022 | 3 | 3 | 0 | Nov 08, 2022 | Nov 08, 2022 |
| 2021 | 12 | 3 | 0 | Oct 26, 2021 | Mar 25, 2022 |
| 2020 | 12 | 3 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 6 | 3 | 0 | Nov 20, 2019 | Dec 27, 2019 |
| 2015 | 8 | 4 | 0 | Sep 15, 2015 | Feb 17, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 18 | 11 | Sep 15, 2015 | Feb 18, 2026 | Results |
| pH | SU | 18 | 3 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 18 | 3 | Sep 15, 2015 | Feb 18, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 2 | 2 | Sep 15, 2015 | Feb 17, 2016 | Results |
All results (56 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 18, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377048 | |
| Feb 18, 2026 | pH | 6.6 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377048 | |
| Feb 18, 2026 | Total Suspended Solids (TSS) | 2.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377048 | |
| Nov 21, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377046 | |
| Nov 21, 2025 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377046 | |
| Nov 21, 2025 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377046 | |
| Nov 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377036 | |
| Nov 14, 2025 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377036 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 17 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377036 | |
| Mar 05, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324808 | |
| Mar 05, 2025 | pH | < 7.4 | SU | Effluent | Qualifying Storm Event | A4500HB | 1324808 | |
| Mar 05, 2025 | Total Suspended Solids (TSS) | < 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324808 | |
| Feb 06, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1322005 | |
| Feb 06, 2025 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1322005 | |
| Feb 06, 2025 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1322005 | |
| Nov 08, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1223121 | |
| Nov 08, 2022 | pH | 7.27 | SU | Effluent | Qualifying Storm Event | A4500HB | 1223121 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 19.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1223121 | |
| Mar 25, 2022 | Oil and Grease | 3.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1198724 | |
| Mar 25, 2022 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | A4500HB | 1198724 | |
| Mar 25, 2022 | Total Suspended Solids (TSS) | 86 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1198724 | |
| Mar 20, 2022 | Oil and Grease | 3.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186597 | |
| Mar 20, 2022 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | A4500HB | 1186597 | |
| Mar 20, 2022 | Total Suspended Solids (TSS) | 86 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186597 | |
| Jan 17, 2022 | Oil and Grease | 2.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1203476 | |
| Jan 17, 2022 | pH | 7.81 | SU | Effluent | Qualifying Storm Event | A4500HB | 1203476 | |
| Jan 17, 2022 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1203476 | |
| Oct 26, 2021 | Oil and Grease | 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1203474 | |
| Oct 26, 2021 | pH | 6.64 | SU | Effluent | Qualifying Storm Event | A4500HB | 1203474 | |
| Oct 26, 2021 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1203474 | |
| Mar 10, 2021 | Oil and Grease | 3.8 | mg/L | Effluent | Qualifying Storm Event | A5520B | 1156091 | |
| Mar 10, 2021 | pH | 9.92 | SU | Effluent | Qualifying Storm Event | A4500HB | 1156091 | |
| Mar 10, 2021 | Total Suspended Solids (TSS) | 36 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1156091 | |
| Mar 03, 2021 | Oil and Grease | 10.4 | mg/L | Effluent | Qualifying Storm Event | A5520B | 1156091 | |
| Mar 03, 2021 | pH | 7.31 | SU | Effluent | Qualifying Storm Event | A4500HB | 1156091 | |
| Mar 03, 2021 | Total Suspended Solids (TSS) | 410 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1156091 | |
| Jan 29, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5520B | 1156091 | |
| Jan 29, 2021 | pH | 7.15 | SU | Effluent | Qualifying Storm Event | A4500HB | 1156091 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1156091 | |
| Dec 28, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | A5520B | 1156091 | |
| Dec 28, 2020 | pH | 7.29 | SU | Effluent | Qualifying Storm Event | A4500HB | 1156091 | |
| Dec 28, 2020 | Total Suspended Solids (TSS) | 140 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1156091 | |
| Dec 27, 2019 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | A5520B | 1122816 | |
| Dec 27, 2019 | pH | 7.31 | SU | Effluent | Qualifying Storm Event | A4500HB | 1122816 | |
| Dec 27, 2019 | Total Suspended Solids (TSS) | 61 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1122816 | |
| Nov 20, 2019 | Oil and Grease | < 3.4 | mg/L | Effluent | Qualifying Storm Event | A5520B | 1122816 | |
| Nov 20, 2019 | pH | > 6.66 | SU | Effluent | Qualifying Storm Event | A4500HB | 1122816 | |
| Nov 20, 2019 | Total Suspended Solids (TSS) | 474 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1122816 | |
| Feb 17, 2016 | Electrical Conductivity @ 25 Deg. C | ND | umhos/cm | Effluent | Qualifying Storm Event | A2510B | 898039 | |
| Feb 17, 2016 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 898039 |
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 | 10 | 10 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Feb 06, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 8 | 8 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 10, 2012 – Feb 06, 2023 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jul 12, 2001 – Jul 12, 2001 | 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 (30 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 13, 2026 | Annual reports | 1337205 | Annual report 2025 | — | |
| Jul 15, 2025 | Annual reports | 1296107 | Annual report 2024 | — | |
| Jul 30, 2024 | Annual reports | 1245297 | Annual report 2023 | — | |
| Feb 06, 2023 | Enforcement actions | 449441 | NOV (Notice of Violation) | Historical | |
| Feb 06, 2023 | Violations | 884505 | Late Report | Violation | Report |
| Jan 26, 2023 | Annual reports | 1191399 | Annual report 2022 | — | |
| Jul 11, 2022 | Annual reports | 1114954 | Annual report 2021 | — | |
| Jun 03, 2022 | Enforcement actions | 446607 | NOV (Notice of Violation) | Historical | |
| Jun 02, 2022 | Violations | 881830 | Late Report | Violation | Report |
| Dec 07, 2021 | Annual reports | 1063043 | Annual report 2020 | — | |
| Nov 25, 2021 | Violations | 880129 | Late Report | Violation | Report |
| Nov 24, 2021 | Enforcement actions | 444065 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Feb 12, 2021 | Enforcement actions | 440036 | NOV (Notice of Violation) | Historical | |
| Jan 01, 2021 | Violations | 876309 | Late Report | Violation | Report |
| Oct 06, 2020 | Annual reports | 979908 | Annual report 2019 | — | |
| Sep 11, 2020 | Enforcement actions | 437526 | NOV (Notice of Violation) | Historical | |
| Sep 11, 2020 | Violations | 873952 | Incomplete/Insufficient SWPPP | Violation | Report |
| Jul 17, 2020 | Enforcement actions | 436921 | NOV (Notice of Violation) | Historical | |
| Jul 17, 2020 | Violations | 873333 | Late Report | Violation | Report |
| Jun 24, 2019 | Annual reports | 956157 | Annual report 2018 | — | |
| Jul 30, 2018 | Annual reports | 941583 | Annual report 2017 | — | |
| Aug 17, 2017 | Annual reports | 880975 | Annual report 2016 | — | |
| Sep 08, 2016 | Annual reports | 846003 | Annual report 2015 | — | |
| Feb 12, 2015 | Enforcement actions | 418265 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Active | |
| Jul 02, 2014 | Violations | 856316 | Late Report | Violation | Report |
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.