US Marine Corps Air Station MCAS
Active WDID 9 37I005767 Camp Pendleton, San Diego County Region 9 · San Diego
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Camp Pendleton, San Diego County
- Region 9 · San Diego · Location · Statewide map
- Receiving water
- Santa Margarita 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 4,687 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample May 05, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 2 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
- 33.3012, -117.35375
- Precision
- 4 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
- 23 Area and Vandegrift Blvd, Camp Pendleton 92055
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- Lake O'Neill-Santa Margarita River HUC12 180703020504
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
- Marine Corps Base Camp Pendleton
- Primary industry (SIC)
- 4522-Air Transportation, Nonscheduled
- Application ID
- 218344
- NOI processed
- Apr 07, 1992
- Last certified
- May 14, 2024
- Facility size
- 474.78 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 218344 | Industrial | Active | Apr 07, 1992 | — | May 14, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Margarita 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
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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Santa Margarita River (Lower) CAR9021100019980911161346 | 609 m | listed | 6 |
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.
4,687 distinct measurements across 16 parameters, most recent sample May 05, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 441 | 9 | 0 | Oct 14, 2025 | May 05, 2026 |
| 2024 | 270 | 9 | 0 | Feb 07, 2025 | Mar 06, 2025 |
| 2023 | 270 | 9 | 0 | Jan 03, 2024 | Feb 01, 2024 |
| 2022 | 468 | 9 | 0 | Sep 09, 2022 | Jan 30, 2023 |
| 2021 | 276 | 12 | 0 | Oct 08, 2021 | Dec 14, 2021 |
| 2020 | 366 | 15 | 0 | Mar 03, 2021 | Mar 15, 2021 |
| 2019 | 576 | 12 | 0 | Nov 20, 2019 | Apr 06, 2020 |
| 2018 | 445 | 12 | 0 | Nov 29, 2018 | May 16, 2019 |
| 2017 | 318 | 15 | 0 | Jan 09, 2018 | Feb 27, 2018 |
| 2016 | 672 | 15 | 0 | Oct 24, 2016 | Feb 27, 2017 |
| 2015 | 619 | 15 | 68 | Nov 03, 2015 | Feb 18, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 452 | 0 | Nov 03, 2015 | May 05, 2026 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 431 | 94 | Nov 03, 2015 | May 05, 2026 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 431 | 158 | Nov 03, 2015 | May 05, 2026 | Results |
| Diesel Oil | mg/L | 431 | 48 | Nov 03, 2015 | May 05, 2026 | Results |
| Methylene Blue Active Substances (MBAS) | mg/L | 431 | 119 | Nov 03, 2015 | May 05, 2026 | Results |
| Oil and Grease | mg/L | 431 | 423 | Nov 03, 2015 | May 05, 2026 | Results |
| Phosphorus, Total (as P) | mg/L | 431 | 128 | Nov 03, 2015 | May 05, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 431 | 109 | Nov 03, 2015 | May 05, 2026 | Results |
| Jet Fuel | mg/L | 269 | 185 | Nov 20, 2019 | May 05, 2026 | Results |
| Ammonia, Total (as N) | mg/L | 240 | 96 | Nov 03, 2015 | Mar 15, 2021 | Results |
| Total Kjeldahl Nitrogen (TKN) (as N) | mg/L | 240 | 21 | Nov 03, 2015 | Mar 15, 2021 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 224 | 47 | Nov 03, 2015 | Mar 15, 2021 | Results |
Show 5 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| TPH as Kerosene | mg/L | 172 | 119 | Nov 03, 2015 | Feb 04, 2019 | Results |
| Nitrite Plus Nitrate (as N) | ug/L | 28 | 0 | Feb 06, 2017 | Feb 27, 2017 | Results |
| Enterococci MPN | MPN/100 mL | 15 | 0 | Nov 03, 2015 | Dec 14, 2021 | Results |
| Fecal Coliform | MPN/100 mL | 15 | 0 | Nov 03, 2015 | Dec 14, 2021 | Results |
| Total Coliform | MPN/100 mL | 15 | 0 | Nov 03, 2015 | Dec 14, 2021 | Results |
All results (4,721 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 6.12 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 7.7 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 6.27 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND 0 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | ND 0 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | 11.2 | mg/L | Effluent | Qualifying Storm Event | A5210B | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | 30.2 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | 23.9 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | 34.4 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | ND 0 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | 55.3 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Chemical Oxygen Demand (COD) | 30.2 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1374927 | |
| May 05, 2026 | Diesel Oil | .26 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Diesel Oil | .487 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Diesel Oil | .326 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Diesel Oil | .0407 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Diesel Oil | .346 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Diesel Oil | .283 | mg/L | Effluent | Qualifying Storm Event | M8015 | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Jet Fuel | ND | mg/L | Effluent | Qualifying Storm Event | DU | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .351 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .242 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .188 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .0877 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .0935 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Methylene Blue Active Substances (MBAS) | .0877 | mg/L | Effluent | Qualifying Storm Event | A5540C | 1374927 | |
| May 05, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | Oil and Grease | 2.09 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | Oil and Grease | ND 0 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374927 | |
| May 05, 2026 | pH | 7.78 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | pH | 7.61 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | pH | 7.29 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | pH | 7.86 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | pH | 7.43 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .118 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .0935 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .233 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .196 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .0446 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Phosphorus, Total (as P) | .0641 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1374927 | |
| May 05, 2026 | Total Suspended Solids (TSS) | ND 0 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374927 | |
| May 05, 2026 | Total Suspended Solids (TSS) | ND 0 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374927 |
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 | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 1999 – Jul 02, 1999 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 14, 1999 – Sep 03, 2008 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | May 13, 2004 – Mar 11, 2020 | 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 (19 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 02, 2026 | Annual reports | 1335766 | Annual report 2025 | — | |
| Jul 07, 2025 | Annual reports | 1294601 | Annual report 2024 | — | |
| Jul 12, 2024 | Annual reports | 1243710 | Annual report 2023 | — | |
| Jul 07, 2023 | Annual reports | 1189736 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1113144 | Annual report 2021 | — | |
| Jul 09, 2021 | Annual reports | 1069174 | Annual report 2020 | — | |
| Jul 10, 2020 | Annual reports | 986474 | Annual report 2019 | — | |
| Mar 11, 2020 | Inspections | 2047149 | B Type compliance | Performed | No Further Action |
| Jun 21, 2019 | Annual reports | 954050 | Annual report 2018 | — | |
| Jun 26, 2018 | Annual reports | 939467 | Annual report 2017 | — | |
| Jul 13, 2017 | Annual reports | 878736 | Annual report 2016 | — | |
| Jul 13, 2016 | Annual reports | 842355 | Annual report 2015 | — | |
| May 23, 2011 | Inspections | 2011927 | Complaint | — | Additional Info Required |
| Sep 03, 2008 | Enforcement actions | 351656 | 13267 Letter/Order (Water Code section 13267 letter or order) | Active | |
| May 13, 2004 | Inspections | 334330 | B Type compliance | — | |
| Oct 15, 1999 | Enforcement actions | 233500 | NOV (Notice of Violation) | Active | UNKNOWN |
| Oct 14, 1999 | Enforcement actions | 234204 | NOV (Notice of Violation) | Historical | UNKNOWN |
| Jul 02, 1999 | Violations | 178712 | Deficient Report | Violation | Inspection |
| Jul 02, 1999 | Violations | 216921 | 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.