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Industrial stormwater facility

San Timoteo Sanitary Landfill

8 36I005238 · Notice of Intent · Redlands, San Bernardino

Official record — State Water Resources Control Board, Industrial General Permit

Official

Facility record

Facility name
San Timoteo Sanitary Landfill
WDID
8 36I005238
Application type
Notice of Intent
City
Redlands
County
San Bernardino
ZIP
92373
Primary SIC code
4953
SIC description
Refuse Systems
Date active
1992-04-09
Regional Water Board
Regional Board 8 - Santa Ana Region

Hydrologic

Geographic context

Official facility coordinate plotted against the official 2026 impaired-water geometry.

Official facility point
34.01757, -117.20812
HUC12 subwatershed
San Timoteo Canyon-San Timoteo Wash
HUC12 code
180702030403
Impaired-water associations (derived)
3
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Same impaired-water subwatershed

3 waterbodies
San Timoteo Creek Reach 1A (Santa Ana River to Confluence to Barton Rd)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Indicator Bacteria

Distance

Confidence low

Fact sheet

San Timoteo Creek Reach 2 (Gage at San Timoteo to confluence with Yucaipa Creek)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Indicator Bacteria

Distance

Confidence low

Fact sheet

San Timoteo Creek Reach 3 (Yucaipa Creek to Headwaters)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Indicator Bacteria

Distance

Confidence low

Fact sheet

Associations are calculated from official facility coordinates, USGS HUC12 boundaries, and official 2026 impaired-water geometry. They do not establish a discharge connection or causation.

TMDL requirements

Water Board-stated TMDL waste load allocations applied to this industrial permit in SMARTS.

Official record — SMARTS TMDL dataset, State Water Board

No SMARTS TMDL requirement is recorded for this WDID. In the statewide TMDL export only permits in Regions 4, 8 and 9 currently carry industrial TMDL requirements, so an absence here is not a statement that the facility discharges to an unimpaired water.

Official monitoring

SMARTS monitoring

Self-reported industrial stormwater sampling results as submitted by the discharger to SMARTS.

Official record — SMARTS parameter data, State Water Board
Reported results
31
Sample events
8
Distinct parameters
4
Reporting years
2016 – 2025
First sample
2017-01-20
Latest sample
2026-02-19
Source regional dataset
Region 8 - Santa Ana
Source retrieved
Aug 21, 2026

Official SMARTS public reports

Parameters reported

Reported results over time

Loading reported results…

Most recent reported results

Latest 25 of 31
Sample dateLocationParameterResultUnitsEvent
2026-02-19Grab Sample from East Basin, S1Iron14000ug/LQualifying Storm Event
2026-02-19Grab Sample from East Basin, S1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-19Grab Sample from East Basin, S1pH7.9SUQualifying Storm Event
2026-02-19Grab Sample from East Basin, S1Total Suspended Solids (TSS)220mg/LQualifying Storm Event
2025-03-13Grab Sample from East Basin, S1Iron16000ug/LQualifying Storm Event
2025-03-13Grab Sample from East Basin, S1Oil and Grease3.6mg/LQualifying Storm Event
2025-03-13Grab Sample from East Basin, S1pH9.4SUQualifying Storm Event
2025-03-13Grab Sample from East Basin, S1Total Suspended Solids (TSS)96mg/LQualifying Storm Event
2024-02-20Grab Sample from East Basin, S1Iron9400ug/LQualifying Storm Event
2024-02-20Grab Sample from East Basin, S1Oil and Grease3.5mg/LQualifying Storm Event
2024-02-20Grab Sample from East Basin, S1pH7.8SUQualifying Storm Event
2024-02-20Grab Sample from East Basin, S1Total Suspended Solids (TSS)190mg/LQualifying Storm Event
2024-02-05Grab Sample from East Basin, S1Iron28000ug/LQualifying Storm Event
2024-02-05Grab Sample from East Basin, S1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2024-02-05Grab Sample from East Basin, S1pH8.2SUQualifying Storm Event
2024-02-05Grab Sample from East Basin, S1Total Suspended Solids (TSS)340mg/LQualifying Storm Event
2023-01-10Grab Sample from East Basin, S1Iron8.3mg/LQualifying Storm Event
2023-01-10Grab Sample from East Basin, S1Oil and Grease1.9mg/LQualifying Storm Event
2023-01-10Grab Sample from East Basin, S1pH7.3SUQualifying Storm Event
2023-01-10Grab Sample from East Basin, S1Total Suspended Solids (TSS)110mg/LQualifying Storm Event
2021-01-29Grab Sample from East Basin, S1Iron2.3mg/LQualifying Storm Event
2021-01-29Grab Sample from East Basin, S1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2021-01-29Grab Sample from East Basin, S1pH8.2SUQualifying Storm Event
2021-01-29Grab Sample from East Basin, S1Total Suspended Solids (TSS)40mg/LQualifying Storm Event
2019-02-14Grab Sample from East Basin, S1Iron8.6mg/LQualifying Storm Event

Monitoring rows are official self-reported SMARTS submissions, joined to this facility by WDID. California Stormwater Intelligence does not restate, correct, average or evaluate reported values, and no benchmark comparison or violation determination is made.

YDOS-derived

Numeric Action Level comparison

Reported SMARTS analytical results compared against the Numeric Action Levels of the Industrial General Permit version in effect for each reporting year (July 1 – June 30).

Derived
Reporting years evaluated
7
Years with an NAL exceedance
7
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Iron, Total Recoverable

iron_total

Annual14 mg/L1 mg/LAbove NALAnnual average of 1 eligible result(s) compared with the annual NAL.14× threshold1 eligiblearithmetic mean of all eligible effluent results in the July 1 - June 30 reporting year (censored results assigned zero only where MDL and ML were both reported)

Oil and Grease

oil_grease

Instantaneous maximum0 samples above25 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligible1 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum0 samples above6 – 9 pH unitsWithin NAL rangeNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Total Suspended Solids (TSS)

tss

Instantaneous maximum0 samples above400 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

An NAL exceedance is a permit-defined condition that triggers Exceedance Response Actions under the Industrial General Permit. It is not a violation, an enforcement action, or a Water Board compliance determination. Annual values use the arithmetic average of eligible results with non-detects treated as zero; instantaneous maximum NALs (total suspended solids, oil and grease, pH) are exceeded when two or more eligible results in a reporting year fall outside the level. Rules transcribed from 2014-0057-DWQ as amended by 2015-0122-DWQ (effective 2015-07-01, superseded 2020-06-30); 2014-0057-DWQ as amended by 2018-0028-DWQ (effective 2020-07-01).

Provenance

Source & provenance

Source agency
California State Water Resources Control Board
Source dataset
Industrial General Permit — permitted facilities (statewide GIS layer)
WDID
8 36I005238
Source feature ID
16600
Application type
Notice of Intent
Regional board derivation
WDID region prefix
Geometry status
valid
Last successful facility import
Aug 21, 2026, 1:57 AM UTC

Official IGP permitted facilities feature layer