RTX Corporation Pratt & Whitney Division

Active WDID 9 37I029933 Carlsbad, 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
Carlsbad, San Diego County
Region 9 · San Diego · Location · Statewide map
Receiving water
Agua Hedionda Creek (as reported by the facility)
Evidence: identification corroborated Agua Hedionda Creek Details
Identified receiving water on the 2026 303(d) list
Yes · 17 Appendix A decisions, category 5 Evidence: State-published
Describes the waterbody, not this facility · Waterbody profile
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
None
Monitoring results Evidence: facility-reported
58 distinct results, 4 reporting years (2022 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 0 violation records · 0 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

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

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
33.1295, -117.28444
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
5940 Darwin Court, Carlsbad 92008
Regional Water Board
9 — San Diego

HUC12 watershed Evidence: spatial

  • Agua Hedionda Creek HUC12 180703030502

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
RTX Corporation Pratt and Whitney Division
Primary industry (SIC)
3299-Nonmetallic Mineral Products, NEC
Application ID
552984
NOI processed
Sep 19, 2022
Last certified
Sep 14, 2022
Facility size
3.5 Acres
Impervious area
99 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
552984 IndustrialActiveSep 19, 2022 —Sep 14, 2022

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
Agua Hedionda Creek
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: identification corroborated Agua Hedionda Creek CAR9043100020010924145051

Receiving water reported by facility — waterbody identification corroborated by geographic evidence.

Nearest distance from the reported facility location: 1.7 km. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

Agua Hedionda Creek is on the 2026 Clean Water Act section 303(d) list (17 Appendix A decisions; category 5).

2026 Appendix A decisions for the identified receiving water
PollutantCategoryListing decisionTMDL requirementDecision ID
Benthic Community Effects5Do Not Delist from 303(d) list (TMDL required list) 5A125884
Bifenthrin5Do Not Delist from 303(d) list (TMDL required list) 5A111604
Chlorpyrifos5Do Not Delist from 303(d) list (TMDL required list) 5A111585
Cyfluthrin5List on 303(d) list (TMDL required list) 5A111610
Cyhalothrin, Lambda5List on 303(d) list (TMDL required list) 5A111612
Cypermethrin5Do Not Delist from 303(d) list (TMDL required list) 5A144941
Deltamethrin5List on 303(d) list (TMDL required list) 5A144942
Indicator Bacteria5List on 303(d) list (TMDL required list) 5A75644
Malathion5Do Not Delist from 303(d) list (TMDL required list) 5A111591
Manganese5List on 303(d) list (TMDL required list) 5A68777
Nitrogen5Do Not Delist from 303(d) list (TMDL required list) 5A132037
Phosphorus5Do Not Delist from 303(d) list (TMDL required list) 5A111596
Pyrethroids5List on 303(d) list (TMDL required list) 5A144940
Selenium5Do Not Delist from 303(d) list (TMDL required list) 5A111597
Total Dissolved Solids5Do Not Delist from 303(d) list (TMDL required list) 5A111598
Toxicity5Do Not Delist from 303(d) list (TMDL required list) 5A111599
Turbidity5List on 303(d) list (TMDL required list) 5A111600

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.

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.

58 distinct measurements across 3 parameters, most recent sample Feb 16, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025213 0 Oct 14, 2025Feb 16, 2026
2024133 0 Feb 12, 2025Mar 31, 2025
2023123 0 Nov 15, 2023Feb 05, 2024
2022123 0 Nov 08, 2022Mar 14, 2023

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
pHSU20 0Nov 08, 2022Feb 16, 2026 Results
Oil and Greasemg/L19 12Nov 08, 2022Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L19 0Nov 08, 2022Feb 16, 2026 Results

All results (58 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Oil and Grease DNQ .758 mg/L Effluent Qualifying Storm Event E1664A 1368325
Feb 16, 2026 Oil and Grease 1.81 mg/L Effluent Qualifying Storm Event E1664A 1368325
Feb 16, 2026 Oil and Grease DNQ .568 mg/L Effluent Qualifying Storm Event E1664A 1368325
Feb 16, 2026 pH 7.42 SU Effluent Qualifying Storm Event pH_Field 1368325
Feb 16, 2026 pH 8.24 SU Effluent Qualifying Storm Event pH_Field 1368325
Feb 16, 2026 pH 7.96 SU Effluent Qualifying Storm Event pH_Field 1368325
Feb 16, 2026 Total Suspended Solids (TSS) 1.8 mg/L Effluent Qualifying Storm Event A2540D 1368325
Feb 16, 2026 Total Suspended Solids (TSS) 73.1 mg/L Effluent Qualifying Storm Event A2540D 1368325
Feb 16, 2026 Total Suspended Solids (TSS) 1.3 mg/L Effluent Qualifying Storm Event A2540D 1368325
Nov 14, 2025 Oil and Grease 1.71 mg/L Effluent Qualifying Storm Event E1664A 1359276
Nov 14, 2025 pH 7.95 SU Effluent Qualifying Storm Event pH_Field 1359276
Nov 14, 2025 Total Suspended Solids (TSS) 15.6 mg/L Effluent Qualifying Storm Event A2540D 1359276
Oct 14, 2025 Oil and Grease 1.34 mg/L Effluent Qualifying Storm Event E1664A 1356620
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1356620
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1356620
Oct 14, 2025 pH 7.81 SU Effluent Qualifying Storm Event pH_Field 1356620
Oct 14, 2025 pH 7.56 SU Effluent Qualifying Storm Event pH_Field 1356620
Oct 14, 2025 pH 7.82 SU Effluent Qualifying Storm Event pH_Field 1356620
Oct 14, 2025 Total Suspended Solids (TSS) 105 mg/L Effluent Qualifying Storm Event A2540D 1356620
Oct 14, 2025 Total Suspended Solids (TSS) 5.4 mg/L Effluent Qualifying Storm Event A2540D 1356620
Oct 14, 2025 Total Suspended Solids (TSS) 5.1 mg/L Effluent Qualifying Storm Event A2540D 1356620
Mar 31, 2025 Oil and Grease .849 mg/L Effluent Qualifying Storm Event E1664A 1329293
Mar 31, 2025 pH 7.53 SU Effluent Qualifying Storm Event pH_Field 1329293
Mar 31, 2025 Total Suspended Solids (TSS) 45.6 mg/L Effluent Qualifying Storm Event A2540D 1329293
Mar 11, 2025 Oil and Grease 2.82 mg/L Effluent Qualifying Storm Event E1664A 1326105
Mar 11, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1326105
Mar 11, 2025 pH 7.82 SU Effluent Qualifying Storm Event pH_Field 1326105
Mar 11, 2025 pH 8.61 SU Effluent Qualifying Storm Event pH_Field 1326105
Mar 11, 2025 Total Suspended Solids (TSS) 24.6 mg/L Effluent Qualifying Storm Event A2540D 1326105
Mar 11, 2025 Total Suspended Solids (TSS) 51 mg/L Effluent Qualifying Storm Event A2540D 1326105
Feb 12, 2025 Oil and Grease 1.06 mg/L Effluent Qualifying Storm Event E1664A 1326104
Feb 12, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1326104
Feb 12, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1326104
Feb 12, 2025 Total Suspended Solids (TSS) 17.7 mg/L Effluent Qualifying Storm Event A2540D 1326104
Feb 05, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1280834
Feb 05, 2024 pH 7.53 SU Effluent Qualifying Storm Event pH_Field 1280834
Feb 05, 2024 Total Suspended Solids (TSS) 1.1 mg/L Effluent Qualifying Storm Event A2540D 1280834
Feb 01, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1280832
Feb 01, 2024 pH 7.55 SU Effluent Qualifying Storm Event pH_Field 1280832
Feb 01, 2024 Total Suspended Solids (TSS) 21.5 mg/L Effluent Qualifying Storm Event A2540D 1280832
Jan 03, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1273926
Jan 03, 2024 pH 8.12 SU Effluent Qualifying Storm Event pH_Field 1273926
Jan 03, 2024 Total Suspended Solids (TSS) 8.3 mg/L Effluent Qualifying Storm Event A2540D 1273926
Nov 15, 2023 Oil and Grease 1.28 mg/L Effluent Qualifying Storm Event E1664A 1268387
Nov 15, 2023 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1268387
Nov 15, 2023 Total Suspended Solids (TSS) 72.3 mg/L Effluent Qualifying Storm Event A2540D 1268387
Mar 14, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1233973
Mar 14, 2023 pH 6.95 SU Effluent Qualifying Storm Event pH_Field 1233973
Mar 14, 2023 Total Suspended Solids (TSS) 32 mg/L Effluent Qualifying Storm Event A2540D 1233973
Mar 10, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1218577

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.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations0 0 Violation · 0 Potential (preliminary) · 0 Dismissed — Oct 21, 2026
Enforcement actions0 0 issued · 0 draft · 0 withdrawn, rescinded or superseded — Oct 21, 2026
Inspections0inspections, not findings — Oct 21, 2026
Annual reports4certified reports (contents not shown) 2022 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, 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 (4 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jun 24, 2026 Annual reports 1341622 Annual report 2025 —
Jul 01, 2025 Annual reports 1300850 Annual report 2024 —
Jul 09, 2024 Annual reports 1250150 Annual report 2023 —
Jun 29, 2023 Annual reports 1204509 Annual report 2022 —

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

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

Records are shown as published and are not compliance determinations. How geographic context is derived.