Ontario East Travel Center

Active WDID 8 36I022206 Ontario, San Bernardino County Region 8 · Santa Ana

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Ontario, San Bernardino County
Region 8 · Santa Ana · Location · Statewide map
Receiving water
Ontario Stormwater System (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
None
Monitoring results Evidence: facility-reported
327 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 16, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 inspections · 3 violation records · 3 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
34.06407, -117.55677
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
4325 Guasti Rd, Ontario 91761
Regional Water Board
8 — Santa Ana

HUC12 watershed Evidence: spatial

  • Lower Cucamonga Creek HUC12 180702030705

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
TA Operating LLC
Primary industry (SIC)
9999-Nonclassifiable Establishments
Application ID
367972
NOI processed
Jul 06, 2009
Last certified
Jun 12, 2025
Facility size
31.8 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
367972 IndustrialActiveJul 06, 2009 —Jun 12, 2025

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

Receiving water

Reported by the facility Evidence: facility-reported
Ontario Stormwater System
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.

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.

327 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
2025363 0 Nov 14, 2025Feb 16, 2026
2024273 0 Jan 26, 2025Feb 13, 2025
2023333 0 Jan 03, 2024Feb 01, 2024
2022423 0 Dec 11, 2022Mar 14, 2023
2021123 0 Mar 28, 2022Mar 28, 2022
2020363 0 Jan 29, 2021Mar 10, 2021
2019483 0 Nov 27, 2019Mar 10, 2020
2018213 0 Nov 29, 2018Dec 05, 2018
2017243 0 Jan 08, 2018Mar 22, 2018
2016363 0 Dec 30, 2016Feb 06, 2017
2015123 0 Mar 06, 2016Mar 16, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L109 30Mar 06, 2016Feb 16, 2026 Results
pHSU109 0Mar 06, 2016Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L109 1Mar 06, 2016Feb 16, 2026 Results

All results (327 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Oil and Grease 7.3 mg/L Effluent Qualifying Storm Event E1664B 1368405
Feb 16, 2026 Oil and Grease 17 mg/L Effluent Qualifying Storm Event E1664A 1368405
Feb 16, 2026 Oil and Grease DNQ 3.5 mg/L Effluent Qualifying Storm Event E1664B 1368405
Feb 16, 2026 Oil and Grease DNQ 1.8 mg/L Effluent Qualifying Storm Event E1664B 1368405
Feb 16, 2026 pH 7.7 SU Effluent Qualifying Storm Event pH_Field 1368405
Feb 16, 2026 pH 7.43 SU Effluent Qualifying Storm Event pH_Field 1368405
Feb 16, 2026 pH 7.5 SU Effluent Qualifying Storm Event pH_Field 1368405
Feb 16, 2026 pH 7.49 SU Effluent Qualifying Storm Event pH_Field 1368405
Feb 16, 2026 Total Suspended Solids (TSS) 14 mg/L Effluent Qualifying Storm Event A2540D 1368405
Feb 16, 2026 Total Suspended Solids (TSS) 370 mg/L Effluent Qualifying Storm Event A2540D 1368405
Feb 16, 2026 Total Suspended Solids (TSS) 57 mg/L Effluent Qualifying Storm Event A2540D 1368405
Feb 16, 2026 Total Suspended Solids (TSS) 5.2 mg/L Effluent Qualifying Storm Event A2540D 1368405
Dec 24, 2025 Oil and Grease DNQ 2.9 mg/L Effluent Qualifying Storm Event E1664B 1363976
Dec 24, 2025 Oil and Grease 15 mg/L Effluent Qualifying Storm Event E1664B 1363976
Dec 24, 2025 Oil and Grease 10 mg/L Effluent Qualifying Storm Event E1664B 1363976
Dec 24, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1363976
Dec 24, 2025 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1363976
Dec 24, 2025 pH 7.1 SU Effluent Qualifying Storm Event pH_Field 1363976
Dec 24, 2025 pH 6.7 SU Effluent Qualifying Storm Event pH_Field 1363976
Dec 24, 2025 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1363976
Dec 24, 2025 Total Suspended Solids (TSS) 60 mg/L Effluent Qualifying Storm Event A2540D 1363976
Dec 24, 2025 Total Suspended Solids (TSS) 270 mg/L Effluent Qualifying Storm Event A2540D 1363976
Dec 24, 2025 Total Suspended Solids (TSS) 220 mg/L Effluent Qualifying Storm Event A2540D 1363976
Dec 24, 2025 Total Suspended Solids (TSS) 54 mg/L Effluent Qualifying Storm Event A2540D 1363976
Nov 14, 2025 Oil and Grease 5.3 mg/L Effluent Qualifying Storm Event E1664B 1360795
Nov 14, 2025 Oil and Grease 10 mg/L Effluent Qualifying Storm Event E1664B 1360795
Nov 14, 2025 Oil and Grease 5.7 mg/L Effluent Qualifying Storm Event E1664B 1360795
Nov 14, 2025 Oil and Grease DNQ 2.5 mg/L Effluent Qualifying Storm Event E1664B 1360795
Nov 14, 2025 pH 7.36 SU Effluent Qualifying Storm Event pH_Field 1360795
Nov 14, 2025 pH 7.63 SU Effluent Qualifying Storm Event pH_Field 1360795
Nov 14, 2025 pH 7.79 SU Effluent Qualifying Storm Event pH_Field 1360795
Nov 14, 2025 pH 7.36 SU Effluent Qualifying Storm Event pH_Field 1360795
Nov 14, 2025 Total Suspended Solids (TSS) 38 mg/L Effluent Qualifying Storm Event A2540D 1360795
Nov 14, 2025 Total Suspended Solids (TSS) 200 mg/L Effluent Qualifying Storm Event A2540D 1360795
Nov 14, 2025 Total Suspended Solids (TSS) 65 mg/L Effluent Qualifying Storm Event A2540D 1360795
Nov 14, 2025 Total Suspended Solids (TSS) 20 mg/L Effluent Qualifying Storm Event A2540D 1360795
Feb 13, 2025 Oil and Grease DNQ 2 mg/L Effluent Qualifying Storm Event E1664B 1324190
Feb 13, 2025 Oil and Grease 4.2 mg/L Effluent Qualifying Storm Event E1664B 1324190
Feb 13, 2025 Oil and Grease DNQ 3.6 mg/L Effluent Qualifying Storm Event E1664B 1324190
Feb 13, 2025 Oil and Grease DNQ 3.6 mg/L Effluent Qualifying Storm Event E1664B 1324190
Feb 13, 2025 pH 8.1 SU Effluent Qualifying Storm Event pH_Field 1324190
Feb 13, 2025 pH 9 SU Effluent Qualifying Storm Event pH_Field 1324190
Feb 13, 2025 pH 9.1 SU Effluent Qualifying Storm Event pH_Field 1324190
Feb 13, 2025 pH 9 SU Effluent Qualifying Storm Event pH_Field 1324190
Feb 13, 2025 Total Suspended Solids (TSS) 22 mg/L Effluent Qualifying Storm Event A2540D 1324190
Feb 13, 2025 Total Suspended Solids (TSS) 97 mg/L Effluent Qualifying Storm Event A2540D 1324190
Feb 13, 2025 Total Suspended Solids (TSS) 70 mg/L Effluent Qualifying Storm Event A2540D 1324190
Feb 13, 2025 Total Suspended Solids (TSS) 34 mg/L Effluent Qualifying Storm Event A2540D 1324190
Feb 06, 2025 Oil and Grease DNQ 2.4 mg/L Effluent Qualifying Storm Event E1664B 1323142
Feb 06, 2025 Oil and Grease DNQ 2.4 mg/L Effluent Qualifying Storm Event E1664B 1323142

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
Violations3 2 Violation · 1 Potential (preliminary) · 0 Dismissed Jul 01, 2013 – Jul 15, 2021 Oct 21, 2026 All violations
Enforcement actions3 3 issued · 0 draft · 0 withdrawn, rescinded or superseded Jul 31, 2013 – Jul 28, 2021 Oct 21, 2026 All actions
Inspections0inspections, not findings — Oct 21, 2026
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 (17 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 09, 2026 Annual reports 1336954 Annual report 2025 —
Jul 15, 2025 Annual reports 1295844 Annual report 2024 —
Jun 24, 2024 Annual reports 1245014 Annual report 2023 —
Jul 11, 2023 Annual reports 1191099 Annual report 2022 —
Jul 15, 2022 Annual reports 1114629 Annual report 2021 —
Jul 29, 2021 Annual reports 1070726 Annual report 2020 —
Jul 28, 2021 Enforcement actions 441237 Verbal Communication Historical
Jul 15, 2021 Violations 877295 Late Report ViolationReport
Jul 05, 2020 Annual reports 988141 Annual report 2019 —
May 04, 2020 Enforcement actions 436701 SEL (Staff Enforcement Letter) Active
Jan 01, 2020 Violations 873099 Late Report PotentialReport
Jun 24, 2019 Annual reports 955773 Annual report 2018 —
Jul 05, 2018 Annual reports 941196 Annual report 2017 —
Jul 12, 2017 Annual reports 880568 Annual report 2016 —
Jul 05, 2016 Annual reports 843497 Annual report 2015 —
Jul 31, 2013 Enforcement actions 413448 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Jul 01, 2013 Violations 852002 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.