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Industrial stormwater facility

DB Engineering Inc

8 30I028913 · Notice of Intent · Buena Park, Orange

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

Official

Facility record

Facility name
DB Engineering Inc
WDID
8 30I028913
Application type
Notice of Intent
City
Buena Park
County
Orange
ZIP
90620
Primary SIC code
3499
SIC description
Fabricated Metal Products, NEC
Date active
2020-10-20
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
33.86198, -118.02163
HUC12 subwatershed
Coyote Creek-San Gabriel River
HUC12 code
180701060606
Impaired-water associations (derived)
6
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Same impaired-water subwatershed

6 waterbodies
Coyote Creek, North Fork

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (4) Indicator Bacteria, Oil and Grease, Selenium, Zinc

Distance

Confidence low

Fact sheet

El Dorado Lakes

Lake & Reservoir · Integrated Report category 4a · TMDL approved by USEPA

Listed pollutants / stressors (7) Algae, Ammonia, Copper, Eutrophic, Lead, Mercury +1 more

Distance

Confidence low

Fact sheet

San Gabriel River Estuary

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (7) Chlordane, Chlorine, Copper, Dioxin, Indicator Bacteria, Nickel +1 more

Distance

Confidence low

Fact sheet

San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (3) Aluminum, Cyanide, Indicator Bacteria

Distance

Confidence low

Fact sheet

San Jose Creek Reach 1 (SG Confluence to Temple St.)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (5) Chlorine, Indicator Bacteria, pH, Total Dissolved Solids, Toxicity

Distance

Confidence low

Fact sheet

San Pedro Bay Near Off Shore Zones

Bay & Harbor · Integrated Report category 4a · TMDL approved by USEPA

Listed pollutants / stressors (7) Chlordane, Copper, DDE (Dichlorodiphenyldichloroethylene), DDT (Dichlorodiphenyltrichloroethane), PCBs (Polychlorinated biphenyls), Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) +1 more

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 (1)

Numeric effluent limits and action levels stated by the Water Board for this permit, with the receiving water named in the TMDL.

Official record — SMARTS TMDL dataset, State Water Board
Stated requirements
1
TMDLs
1
Regulated parameters
1
Limit due dates
2020-07-01 – 2020-07-01
Includes interim limits
No
Source regional dataset
Region 8 - Santa Ana
Source retrieved
Aug 21, 2026

Official SMARTS public reports

R8 - San Gabriel River Metals and Selenium TMDL

Receiving water named in TMDL R8 - Coyote Creek and its tributary/ies

1 limits
ParameterLimit typePeriodBasisLimitDue dateReported results for parameter
Zinc, TotalVocabulary match: Zinc (narrower)NELFINALINSTANTANEOUS.158 mg/L2020-07-0116 results · latest 2026-02-19
Derivedapplies only to the 303(d) waterbody link and the parameter vocabulary match.

Limit values, limit periods, parameters, TMDL names and receiving-water names are reproduced exactly as stated by the Water Board in SMARTS. California Stormwater Intelligence does not compare reported monitoring results to these limits and makes no exceedance, violation or compliance determination. Where a stated receiving-water name is linked to a 2026 303(d) waterbody, that link is a derived exact-name match, not a Water Board determination.

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
115
Sample events
16
Distinct parameters
8
Reporting years
2021 – 2025
First sample
2021-12-15
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 115
Sample dateLocationParameterResultUnitsEvent
2026-02-19Outfall 2AluminumND (non-detect / est.)mg/LQualifying Storm Event
2026-02-19Outfall 2Iron.074mg/LQualifying Storm Event
2026-02-19Outfall 2Nitrate/Nitrite (Nitrite + Nitrate as N).1mg/LQualifying Storm Event
2026-02-19Outfall 2Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-19Outfall 2pH7SUQualifying Storm Event
2026-02-19Outfall 2Total Suspended Solids (TSS)3mg/LQualifying Storm Event
2026-02-19Outfall 2Zinc.007mg/LQualifying Storm Event
2026-02-17Outfall 2AluminumND (non-detect / est.)mg/LQualifying Storm Event
2026-02-17Outfall 2Iron.475mg/LQualifying Storm Event
2026-02-17Outfall 2Nitrate/Nitrite (Nitrite + Nitrate as N).193mg/LQualifying Storm Event
2026-02-17Outfall 2Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-17Outfall 2pH7SUQualifying Storm Event
2026-02-17Outfall 2Total Suspended Solids (TSS)2mg/LQualifying Storm Event
2026-02-17Outfall 2Zinc.078mg/LQualifying Storm Event
2026-02-11Outfall 2AluminumND (non-detect / est.)mg/LQualifying Storm Event
2026-02-11Outfall 2Iron.124mg/LQualifying Storm Event
2026-02-11Outfall 2Nitrate/Nitrite (Nitrite + Nitrate as N).641mg/LQualifying Storm Event
2026-02-11Outfall 2Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2026-02-11Outfall 2pH7SUQualifying Storm Event
2026-02-11Outfall 2Total Suspended Solids (TSS)4mg/LQualifying Storm Event
2026-02-11Outfall 2Zinc.197mg/LQualifying Storm Event
2025-11-21Outfall 2Aluminum.08mg/LQualifying Storm Event
2025-11-21Outfall 2CopperND (non-detect / est.)mg/LQualifying Storm Event
2025-11-21Outfall 2Iron.156mg/LQualifying Storm Event
2025-11-21Outfall 2Nitrate/Nitrite (Nitrite + Nitrate as N).289mg/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
5
Years with an NAL exceedance
0
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Aluminum, Total

aluminum_total

Annual0.016 mg/L0.75 mg/LAt or below NALAnnual average of 5 eligible result(s) compared with the annual NAL.0.02× threshold5 eligible4 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 mg/L0.033 mg/LAt or below NALAnnual average of 2 eligible result(s) compared with the annual NAL.0× threshold2 eligible2 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)

Iron, Total

iron_total

Annual0.191 mg/L1 mg/LAt or below NALAnnual average of 5 eligible result(s) compared with the annual NAL.0.19× threshold5 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)

Nitrite Plus Nitrate (as N)

nitrate_nitrite_n

Annual0.306 mg/L as N0.68 mg/L as NAt or below NALAnnual average of 4 eligible result(s) compared with the annual NAL.0.45× threshold4 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.5 eligible5 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.5 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.5 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Zinc, Total

zinc_total

Annual0.095 mg/L0.26 mg/LAt or below NALAnnual average of 5 eligible result(s) compared with the annual NAL.0.37× threshold5 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)

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 30I028913
Source feature ID
16108
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