Nasa
Active WDID 4 19I001524 Pasadena, 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
- Pasadena, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Arroyo Seco (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 4,713 distinct results, 10 reporting years (2016 to 2025)
- Most recent sample Nov 20, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 3 violation records · 3 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
- 34.18502, -118.17389
- 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
- 4800 Oak Grove Dr, Pasadena 91109
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Arroyo Seco HUC12 180701050209
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
- NASA JPL
- Primary industry (SIC)
- 3812-Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments
- Application ID
- 188818
- NOI processed
- Mar 27, 1992
- Last certified
- May 16, 2022
- Facility size
- 156 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 188818 | Industrial | Active | Mar 27, 1992 | — | May 16, 2022 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Arroyo Seco
- Discharges directly / indirectly
- N / — (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
7 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Arroyo Seco Reach 2 (West Holly Ave to Devils Gate Dam) CAR4051501019990202133129 | 92 m | listed | 2 |
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 |
|---|---|---|---|---|---|---|---|
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Cadmium, Total | .0031 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Copper, Total | .06749 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Lead, Total | .094 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Zinc, Total | .159 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
4 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.
4,713 distinct measurements across 23 parameters, most recent sample Nov 20, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 506 | 23 | 0 | Nov 14, 2025 | Nov 20, 2025 |
| 2024 | 230 | 23 | 0 | Mar 05, 2025 | Mar 05, 2025 |
| 2023 | 483 | 23 | 0 | Feb 01, 2024 | Mar 06, 2024 |
| 2022 | 173 | 23 | 0 | Jan 09, 2023 | Mar 10, 2023 |
| 2021 | 644 | 23 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 207 | 23 | 0 | Mar 15, 2021 | Mar 15, 2021 |
| 2019 | 437 | 23 | 0 | Nov 27, 2019 | Dec 04, 2019 |
| 2018 | 782 | 23 | 0 | Nov 29, 2018 | Mar 20, 2019 |
| 2017 | 525 | 21 | 0 | Sep 21, 2017 | May 21, 2018 |
| 2016 | 726 | 22 | 0 | Dec 30, 2016 | Jan 19, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Ammonia, Total (as N) | mg/L | 209 | 20 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Antimony, Total | mg/L | 209 | 31 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Arsenic, Total | mg/L | 209 | 93 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Beryllium, Total | ug/L | 209 | 191 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Chromium (Total) | mg/L | 209 | 63 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Cyanide, Total (as CN) | mg/L | 209 | 208 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Dissolved Oxygen | mg/L | 209 | 0 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Mercury, Total | ug/L | 209 | 201 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Nickel, Total | mg/L | 209 | 37 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Oil and Grease | mg/L | 209 | 130 | Dec 30, 2016 | Nov 20, 2025 | Results |
| pH | SU | 209 | 0 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Phosphorus, Total (as P) | mg/L | 209 | 92 | Dec 30, 2016 | Nov 20, 2025 | Results |
Show 12 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Zinc, Total | mg/L | 209 | 0 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 208 | 17 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Cadmium, Total | mg/L | 207 | 96 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Copper, Total | mg/L | 207 | 1 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Lead, Total | mg/L | 207 | 25 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Selenium, Total | mg/L | 207 | 191 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Silver, Total | mg/L | 207 | 183 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Nitrate, Total (as N) | mg/L | 184 | 1 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Nitrite, Total (as N) | mg/L | 184 | 136 | Dec 30, 2016 | Nov 20, 2025 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 176 | 1 | Sep 21, 2017 | Nov 20, 2025 | Results |
| Thallium, Total | mg/L | 172 | 171 | Mar 02, 2018 | Nov 20, 2025 | Results |
| Thallium, Total | ug/L | 37 | 37 | Dec 30, 2016 | Sep 21, 2017 | Results |
All results (4,713 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Nov 20, 2025 | Ammonia, Total (as N) | .34 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .44 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .28 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .3 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .21 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .44 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .34 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .18 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .19 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .17 | mg/L | Effluent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Ammonia, Total (as N) | .3 | mg/L | Influent | Qualifying Storm Event | E350.1 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .0048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .0049 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .012 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | DNQ .0018 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .014 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | .006 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | DNQ .0016 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Antimony, Total | ND | mg/L | Influent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00032 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00075 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00051 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00041 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .0013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00065 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00059 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00034 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00042 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Arsenic, Total | DNQ .00067 | mg/L | Influent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | DNQ .067 | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Beryllium, Total | ND | ug/L | Influent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | DNQ .00011 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | DNQ .00011 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 | |
| Nov 20, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361649 |
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 | 3 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Feb 05, 2009 – Aug 02, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 1 issued · 0 draft · 2 withdrawn, rescinded or superseded | Jul 19, 2010 – Aug 02, 2023 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Jul 18, 2023 – Jul 18, 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 | 1 | reports, by parameter | 2022-23 – 2022-23 | Oct 21, 2026 | All reports |
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 (19 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 01, 2026 | Annual reports | 1337465 | Annual report 2025 | — | |
| Jun 30, 2025 | Annual reports | 1296380 | Annual report 2024 | — | |
| May 29, 2024 | Annual reports | 1245586 | Annual report 2023 | — | |
| Aug 02, 2023 | Enforcement actions | 450350 | EPL (Expedited Payment Letter) | Withdrawn | R4-2023-0243 |
| Aug 02, 2023 | Violations | 885581 | Effluent | Violation | Report |
| Jul 18, 2023 | Inspections | 2061217 | B Type compliance | Finalized | Additional Info Required |
| Jun 14, 2023 | Annual reports | 1191701 | Annual report 2022 | — | |
| May 03, 2023 | Water-quality-based corrective action reports | 1227204 | WQBCAR 2022-23 | — | Zinc, Total |
| Jun 18, 2022 | Annual reports | 1115287 | Annual report 2021 | — | |
| Jun 29, 2021 | Annual reports | 1063382 | Annual report 2020 | — | |
| Jul 22, 2020 | Annual reports | 980272 | Annual report 2019 | — | |
| Oct 15, 2019 | Enforcement actions | 434250 | NOV (Notice of Violation) | Withdrawn | |
| Oct 15, 2019 | Violations | 871134 | Late Report | Violation | Report |
| Jun 05, 2019 | Annual reports | 956530 | Annual report 2018 | — | |
| Jun 21, 2018 | Annual reports | 941957 | Annual report 2017 | — | |
| Jun 28, 2017 | Annual reports | 881366 | Annual report 2016 | — | |
| Jun 23, 2016 | Annual reports | 842519 | Annual report 2015 | — | |
| Jul 19, 2010 | Enforcement actions | 404462 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 05, 2009 | Violations | 843763 | Deficient BMP Implementation | 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.