Baxalta US Inc

Active WDID 4 56I025374 Thousand Oaks, Ventura 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
Thousand Oaks, Ventura County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
Arroyo Conejo Creek (as reported by the facility)
Evidence: not confirmed 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
2 waterbodies; 2 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
140 distinct results, 12 reporting years (2015 to 2026)
Most recent sample Sep 06, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 2 violation records · 2 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
34.20622, -118.93001
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
1700 Rancho Conejo Blvd, Thousand Oaks 91320
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Lower Arroyo Conejo HUC12 180701030105

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
Baxalta US Inc
Primary industry (SIC)
2836-Biological Products, Except Diagnostic Substances
Application ID
453870
NOI processed
Mar 30, 2015
Last certified
Apr 02, 2026
Facility size
26 Acres

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
453870 IndustrialActiveMar 30, 2015 —Apr 02, 2026

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

Receiving water

Reported by the facility Evidence: facility-reported
Arroyo Conejo Creek
Discharges directly / indirectly
N / N (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.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
Calleguas Creek Reach 13 (Arroyo Conejo above North Fork Arroyo Conejo) CAR4036400020000229100105418 m listed18
Calleguas Creek Reach 10 (Aroyo Conejo: Conejo Creek to North Fork Arroyo Conejo) CAR4036400020020226083118661 m listed22

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.

140 distinct measurements across 4 parameters, most recent sample Sep 06, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202633 0 Sep 06, 2026Sep 06, 2026
2025153 0 Oct 14, 2025Feb 19, 2026
202463 0 Feb 04, 2025Feb 12, 2025
2023123 0 Nov 15, 2023Mar 06, 2024
2022123 0 Nov 08, 2022Jan 14, 2023
202193 0 Oct 25, 2021Mar 28, 2022
202093 0 Dec 27, 2020Jan 28, 2021
2019153 0 Nov 20, 2019Mar 12, 2020
2018183 0 Oct 12, 2018Nov 20, 2019
201763 0 Jan 08, 2018Feb 27, 2018
2016123 0 Oct 28, 2016Jan 18, 2017
2015234 0 Dec 13, 2015Mar 11, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
pHSU47 0Dec 13, 2015Sep 06, 2026 Results
Oil and Greasemg/L46 23Dec 13, 2015Sep 06, 2026 Results
Total Suspended Solids (TSS)mg/L46 0Dec 13, 2015Sep 06, 2026 Results
Electrical Conductivity @ 25 Deg. Cumhos/cm1 0Jan 22, 2016Jan 22, 2016 Results

All results (140 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Sep 06, 2026 Oil and Grease 3.03 mg/L Effluent Qualifying Storm Event E1664A 1396724
Sep 06, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Field 1396724
Sep 06, 2026 Total Suspended Solids (TSS) 41.5 mg/L Effluent Qualifying Storm Event A2540D 1396724
Feb 19, 2026 Oil and Grease ND mg/L Effluent Non-Qualifying Storm Event E1664A 1370892
Feb 19, 2026 pH 7.4 SU Effluent Non-Qualifying Storm Event pH_Field 1370892
Feb 19, 2026 Total Suspended Solids (TSS) 1.8 mg/L Effluent Non-Qualifying Storm Event A2540D 1370892
Feb 16, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1370501
Feb 16, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Field 1370501
Feb 16, 2026 Total Suspended Solids (TSS) 16.1 mg/L Effluent Qualifying Storm Event A2540D 1370501
Feb 11, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1367644
Feb 11, 2026 pH 7 SU Effluent Qualifying Storm Event pH_Field 1367644
Feb 11, 2026 Total Suspended Solids (TSS) 2.9 mg/L Effluent Qualifying Storm Event A2540D 1367644
Nov 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1360015
Nov 14, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Field 1360015
Nov 14, 2025 Total Suspended Solids (TSS) 9.9 mg/L Effluent Qualifying Storm Event A2540D 1360015
Oct 14, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1355665
Oct 14, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Field 1355665
Oct 14, 2025 Total Suspended Solids (TSS) 94.5 mg/L Effluent Qualifying Storm Event A2540D 1355665
Feb 12, 2025 Oil and Grease 2 mg/L Effluent Qualifying Storm Event E1664A 1323380
Feb 12, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Field 1323380
Feb 12, 2025 Total Suspended Solids (TSS) 39.4 mg/L Effluent Qualifying Storm Event A2540D 1323380
Feb 04, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1323433
Feb 04, 2025 pH 7 SU Effluent Qualifying Storm Event pH_Field 1323433
Feb 04, 2025 Total Suspended Solids (TSS) 52.6 mg/L Effluent Qualifying Storm Event A2540D 1323433
Mar 06, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1284778
Mar 06, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Field 1284778
Mar 06, 2024 Total Suspended Solids (TSS) 48.1 mg/L Effluent Qualifying Storm Event A2540D 1284778
Feb 18, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1282276
Feb 18, 2024 pH 7 SU Effluent Qualifying Storm Event pH_Field 1282276
Feb 18, 2024 Total Suspended Solids (TSS) 26.2 mg/L Effluent Qualifying Storm Event A2540D 1282276
Dec 30, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1273478
Dec 30, 2023 pH 7 SU Effluent Qualifying Storm Event pH_Field 1273478
Dec 30, 2023 Total Suspended Solids (TSS) 8.7 mg/L Effluent Qualifying Storm Event A2540D 1273478
Nov 15, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1269223
Nov 15, 2023 pH 7 SU Effluent Qualifying Storm Event pH_Field 1269223
Nov 15, 2023 Total Suspended Solids (TSS) 73.7 mg/L Effluent Qualifying Storm Event A2540D 1269223
Jan 14, 2023 Oil and Grease 2.66 mg/L Effluent Qualifying Storm Event E1664A 1226881
Jan 14, 2023 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1226881
Jan 14, 2023 Total Suspended Solids (TSS) 45.5 mg/L Effluent Qualifying Storm Event A2540D 1226881
Jan 09, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1226875
Jan 09, 2023 pH 7 SU Effluent Qualifying Storm Event pH_Field 1226875
Jan 09, 2023 Total Suspended Solids (TSS) 14.4 mg/L Effluent Qualifying Storm Event A2540D 1226875
Dec 11, 2022 Oil and Grease 3.04 mg/L Effluent Qualifying Storm Event E1664A 1220326
Dec 11, 2022 pH 7 SU Effluent Qualifying Storm Event pH_Field 1220326
Dec 11, 2022 Total Suspended Solids (TSS) 10.9 mg/L Effluent Qualifying Storm Event A2540D 1220326
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1216872
Nov 08, 2022 pH 6.82 SU Effluent Qualifying Storm Event pH_Field 1216872
Nov 08, 2022 Total Suspended Solids (TSS) 16.3 mg/L Effluent Qualifying Storm Event A2540D 1216872
Mar 28, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1181031
Mar 28, 2022 pH 7 SU Effluent Qualifying Storm Event pH_Paper 1181031

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
Violations2 2 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 14, 2015 – Sep 21, 2022 Oct 21, 2026 All violations
Enforcement actions2 1 issued · 0 draft · 1 withdrawn, rescinded or superseded Mar 25, 2016 – Sep 21, 2022 Oct 21, 2026 All actions
Inspections1inspections, not findings Jan 20, 2016 – Jan 20, 2016 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 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 (16 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 10, 2026 Annual reports 1339310 Annual report 2025 —
Jul 07, 2025 Annual reports 1298356 Annual report 2024 —
Jul 09, 2024 Annual reports 1247638 Annual report 2023 —
Jun 30, 2023 Annual reports 1193844 Annual report 2022 —
Sep 21, 2022 Enforcement actions 447780 NOV (Notice of Violation) Historical
Sep 21, 2022 Violations 883109 Incomplete/Insufficient SWPPP ViolationReport
Jul 08, 2022 Annual reports 1117727 Annual report 2021 —
Jul 13, 2021 Annual reports 1065965 Annual report 2020 —
Jul 15, 2020 Annual reports 983088 Annual report 2019 —
Jul 12, 2019 Annual reports 959458 Annual report 2018 —
Jul 12, 2018 Annual reports 944893 Annual report 2017 —
Jul 07, 2017 Annual reports 884211 Annual report 2016 —
Jun 27, 2016 Annual reports 844313 Annual report 2015 —
Mar 25, 2016 Enforcement actions 422942 1st NNC - AR (First Notice of Non-Compliance (annual report)) Withdrawn
Jan 20, 2016 Inspections 2028504 Complaint —Follow-up Inspection Needed
Aug 14, 2015 Violations 860053 Late Report ViolationReport

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.