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Industrial stormwater facility

Ontario International Airport

8 36I026885 · Notice of Intent · Ontario, San Bernardino

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

Official

Facility record

Facility name
Ontario International Airport
WDID
8 36I026885
Application type
Notice of Intent
City
Ontario
County
San Bernardino
ZIP
91761
Primary SIC code
4581
SIC description
Airports, Flying Fields, and Airport Terminal Services
Date active
2016-10-25
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
34.06033, -117.59716
HUC12 subwatershed
Upper Cucamonga Creek
HUC12 code
180702030704
Impaired-water associations (derived)
2
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Subwatershed + nearby

1 waterbodies
Cucamonga Creek Reach 1 (Valley Reach)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (4) Cadmium, Copper, Lead, Zinc

Distance 0.35 km

Confidence high

Fact sheet

Same impaired-water subwatershed

1 waterbodies
Cucamonga Creek Reach 2 (Mountain Reach)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) pH

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
1,430
Sample events
161
Distinct parameters
14
Reporting years
2016 – 2025
First sample
2016-11-20
Latest sample
2026-02-16
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 1,430
Sample dateLocationParameterResultUnitsEvent
2026-02-16SP-FUEL-MNZCadmiumND .00026(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZChemical oxygen demand (COD)20mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZCopper.0062mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZEnterococcus930MPN/100 mLQualifying Storm Event
2026-02-16SP-FUEL-MNZFecal Coliform< 18(non-detect / est.)MPN/100 mLQualifying Storm Event
2026-02-16SP-FUEL-MNZLeadDNQ .002(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZNitrate/Nitrite (Nitrite + Nitrate as N).18mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZOil and GreaseDNQ 1.8(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZpH6.85SUQualifying Storm Event
2026-02-16SP-FUEL-MNZPhosphorus.093mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZTotal Coliform> 16000(non-detect / est.)MPN/100 mLQualifying Storm Event
2026-02-16SP-FUEL-MNZTotal Kjeldahl Nitrogen (TKN).91mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZTotal Suspended Solids (TSS)46mg/LQualifying Storm Event
2026-02-16SP-FUEL-MNZZinc.16mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXCadmiumND .00026(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXChemical oxygen demand (COD)8mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXCopperDNQ .0036(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXEnterococcus78MPN/100 mLQualifying Storm Event
2026-02-16SP-GSE-FDXFecal Coliform< 18(non-detect / est.)MPN/100 mLQualifying Storm Event
2026-02-16SP-GSE-FDXLeadDNQ .0013(non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXNitrate/Nitrite (Nitrite + Nitrate as N).27mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXOil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXpH7.56SUQualifying Storm Event
2026-02-16SP-GSE-FDXPhosphorus.042mg/LQualifying Storm Event
2026-02-16SP-GSE-FDXTotal Coliform1900MPN/100 mLQualifying 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
10
Years with an NAL exceedance
2
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Cadmium, Total

cadmium_total

Annual0 mg/L0.005 mg/LAt or below NALAnnual average of 15 eligible result(s) compared with the annual NAL.0× threshold15 eligible15 non-detect as zeroarithmetic 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)

Chemical Oxygen Demand (COD)

cod

Annual14 mg/L120 mg/LAt or below NALAnnual average of 15 eligible result(s) compared with the annual NAL.0.12× threshold15 eligible3 non-detect as zeroarithmetic 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)

Copper, Total

copper_total

Annual0.011 mg/L0.033 mg/LAt or below NALAnnual average of 21 eligible result(s) compared with the annual NAL.0.34× threshold21 eligible6 non-detect as zeroarithmetic 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)

Lead, Total

lead_total

Annual0.004 mg/L0.262 mg/LAt or below NALAnnual average of 21 eligible result(s) compared with the annual NAL.0.02× threshold21 eligible15 non-detect as zeroarithmetic 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)

Nitrite Plus Nitrate (as N)

nitrate_nitrite_n

Annual0.327 mg/L as N0.68 mg/L as NAt or below NALAnnual average of 15 eligible result(s) compared with the annual NAL.0.48× threshold15 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.21 eligible16 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum1 sample above6 – 9 pH unitsWithin NAL rangeOne eligible result in this reporting year was outside the instantaneous maximum NAL. The Order states the condition as two or more results in one reporting year.21 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Phosphorus, Total (as P)

phosphorus_total

Annual0.087 mg/L as P2 mg/L as PAt or below NALAnnual average of 15 eligible result(s) compared with the annual NAL.0.04× threshold15 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)

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.21 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Zinc, Total

zinc_total

Annual0.217 mg/L0.26 mg/LAt or below NALAnnual average of 21 eligible result(s) compared with the annual NAL.0.84× threshold21 eligible1 non-detect as zeroarithmetic 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)

YDOS-derived overlap

Pollutant overlap with impaired receiving waters

Parameters where this facility has an NAL exceedance in at least one reporting year and the geographically associated waterbody carries a 303(d) listing for the same pollutant.

Derived

CopperMonitoringAbove NAL303(d) impairmentCucamonga Creek Reach 1 (Valley Reach)

1 reporting year above the annual NAL, most recently RY 2019 · 1 303(d) listing · association: derived nearby in watershed (high confidence)

pHMonitoringAbove NAL303(d) impairmentCucamonga Creek Reach 2 (Mountain Reach)

1 reporting year above the instantaneous maximum NAL, most recently RY 2023 · 1 303(d) listing · association: derived watershed association (low confidence)

ZincMonitoringAbove NAL303(d) impairmentCucamonga Creek Reach 1 (Valley Reach)

1 reporting year above the annual NAL, most recently RY 2019 · 1 303(d) listing · association: derived nearby in watershed (high confidence)

Overlap is informational co-occurrence between a derived NAL comparison and an official 303(d) listing. It is not evidence that this facility caused or contributed to the impairment.

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 36I026885
Source feature ID
16970
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