LA Lumber Treating Ltd

Active WDID 8 36I029272 Fontana, 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
Fontana, San Bernardino County
Region 8 · Santa Ana · Location · Statewide map
Receiving water
San Sevaine Channel (as reported by the facility)
Evidence: identification corroborated San Sevaine Channel Details
Identified receiving water on the 2026 303(d) list
Not on the 2026 303(d) list 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
136 distinct results, 5 reporting years (2021 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
34.09668, -117.46588
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
15500 Valencia Avenue, Fontana 92335
Regional Water Board
8 — Santa Ana

HUC12 watershed Evidence: spatial

  • East Etiwanda Creek-Santa Ana River HUC12 180702030804

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
LA Lumber Treating Ltd
Primary industry (SIC)
2491-Wood Preserving
Application ID
533792
NOI processed
Jun 22, 2021
Last certified
Mar 04, 2025
Facility size
9 Acres
Impervious area
100 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
533792 IndustrialActiveJun 22, 2021 —Mar 04, 2025

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

Receiving water

Reported by the facility Evidence: facility-reported
San Sevaine Channel
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: identification corroborated San Sevaine Channel CAR8012100020080924023459

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

Nearest distance from the reported facility location: 4.5 km. Method receiving_water/2.

2026 Integrated Report status Evidence: State-published

San Sevaine Channel is not on the 2026 303(d) list.

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only.. 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.

136 distinct measurements across 8 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
2025328 0 Dec 24, 2025Feb 16, 2026
2024328 0 Feb 13, 2025Feb 13, 2025
2023328 0 Feb 20, 2024Feb 20, 2024
2022328 0 Jan 05, 2023Jan 05, 2023
202188 0 Dec 09, 2021Dec 09, 2021

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Ammonia, Total (as N)mg/L17 0Dec 09, 2021Feb 16, 2026 Results
Arsenic, Totalmg/L17 2Dec 09, 2021Feb 16, 2026 Results
Boron, Total Recoverableug/L17 6Dec 09, 2021Feb 16, 2026 Results
Copper, Totalmg/L17 0Dec 09, 2021Feb 16, 2026 Results
Oil and Greasemg/L17 3Dec 09, 2021Feb 16, 2026 Results
pHSU17 0Dec 09, 2021Feb 16, 2026 Results
Phosphorus, Total (as P)mg/L17 0Dec 09, 2021Feb 16, 2026 Results
Total Suspended Solids (TSS)mg/L17 0Dec 09, 2021Feb 16, 2026 Results

All results (136 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 16, 2026 Ammonia, Total (as N) .25 mg/L Effluent Qualifying Storm Event E350.1 1368355
Feb 16, 2026 Ammonia, Total (as N) .38 mg/L Effluent Qualifying Storm Event E350.1 1368355
Feb 16, 2026 Arsenic, Total ND mg/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Arsenic, Total .00041 mg/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Boron, Total Recoverable ND ug/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Boron, Total Recoverable .043 ug/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Copper, Total .0089 mg/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Copper, Total .0077 mg/L Effluent Qualifying Storm Event E200.8 1368355
Feb 16, 2026 Oil and Grease 1.8 mg/L Effluent Qualifying Storm Event E1664A 1368355
Feb 16, 2026 Oil and Grease 2 mg/L Effluent Qualifying Storm Event E1664A 1368355
Feb 16, 2026 pH 6.94 SU Effluent Qualifying Storm Event pH_Field 1368355
Feb 16, 2026 pH 6.94 SU Effluent Qualifying Storm Event pH_Field 1368355
Feb 16, 2026 Phosphorus, Total (as P) .1 mg/L Effluent Qualifying Storm Event E365.1 1368355
Feb 16, 2026 Phosphorus, Total (as P) .34 mg/L Effluent Qualifying Storm Event E365.1 1368355
Feb 16, 2026 Total Suspended Solids (TSS) 8.4 mg/L Effluent Qualifying Storm Event A2540D 1368355
Feb 16, 2026 Total Suspended Solids (TSS) 5.3 mg/L Effluent Qualifying Storm Event A2540D 1368355
Dec 24, 2025 Ammonia, Total (as N) .67 mg/L Effluent Qualifying Storm Event E350.1 1364280
Dec 24, 2025 Ammonia, Total (as N) .22 mg/L Effluent Qualifying Storm Event E350.1 1364280
Dec 24, 2025 Arsenic, Total ND mg/L Effluent Qualifying Storm Event E200.8 1364280
Dec 24, 2025 Arsenic, Total .00016 mg/L Effluent Qualifying Storm Event E200.8 1364280
Dec 24, 2025 Boron, Total Recoverable ND ug/L Effluent Qualifying Storm Event 1364280
Dec 24, 2025 Boron, Total Recoverable ND ug/L Effluent Qualifying Storm Event 1364280
Dec 24, 2025 Copper, Total .0067 mg/L Effluent Qualifying Storm Event E200.8 1364280
Dec 24, 2025 Copper, Total .0024 mg/L Effluent Qualifying Storm Event E200.8 1364280
Dec 24, 2025 Oil and Grease 1.6 mg/L Effluent Qualifying Storm Event E1664A 1364280
Dec 24, 2025 Oil and Grease 2.5 mg/L Effluent Qualifying Storm Event E1664A 1364280
Dec 24, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1364280
Dec 24, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1364280
Dec 24, 2025 Phosphorus, Total (as P) .16 mg/L Effluent Qualifying Storm Event E365.1 1364280
Dec 24, 2025 Phosphorus, Total (as P) .071 mg/L Effluent Qualifying Storm Event E365.1 1364280
Dec 24, 2025 Total Suspended Solids (TSS) 20 mg/L Effluent Qualifying Storm Event A2540D 1364280
Dec 24, 2025 Total Suspended Solids (TSS) 27 mg/L Effluent Qualifying Storm Event A2540D 1364280
Feb 13, 2025 Ammonia, Total (as N) .35 mg/L Effluent Qualifying Storm Event A4500NH 1327269
Feb 13, 2025 Ammonia, Total (as N) .55 mg/L Effluent Qualifying Storm Event A4500NH 1327269
Feb 13, 2025 Ammonia, Total (as N) .39 mg/L Effluent Qualifying Storm Event A4500NH 1327269
Feb 13, 2025 Ammonia, Total (as N) .2 mg/L Effluent Qualifying Storm Event A4500NH 1327269
Feb 13, 2025 Arsenic, Total .00053 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Arsenic, Total .0018 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Arsenic, Total .00081 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Arsenic, Total .00039 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Boron, Total Recoverable 17 ug/L Effluent Qualifying Storm Event 1327269
Feb 13, 2025 Boron, Total Recoverable 26 ug/L Effluent Qualifying Storm Event 1327269
Feb 13, 2025 Boron, Total Recoverable 40 ug/L Effluent Qualifying Storm Event 1327269
Feb 13, 2025 Boron, Total Recoverable 21 ug/L Effluent Qualifying Storm Event 1327269
Feb 13, 2025 Copper, Total .031 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Copper, Total .074 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Copper, Total .04 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Copper, Total .034 mg/L Effluent Qualifying Storm Event E200.8 1327269
Feb 13, 2025 Oil and Grease 1.2 mg/L Effluent Qualifying Storm Event E1664A 1327269
Feb 13, 2025 Oil and Grease 10 mg/L Effluent Qualifying Storm Event E1664A 1327269

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 reports5certified reports (contents not shown) 2021 – 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 (5 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 15, 2026 Annual reports 1340802 Annual report 2025 —
Jul 15, 2025 Annual reports 1299965 Annual report 2024 —
Jul 16, 2024 Annual reports 1249347 Annual report 2023 —
Jul 15, 2023 Annual reports 1195658 Annual report 2022 —
Jul 12, 2022 Annual reports 1151375 Annual report 2021 —

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.