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Industrial stormwater facility

Railmakers Inc

8 30NEC005756 · No Exposure Certification · Costa Mesa, Orange

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

Official

Facility record

Facility name
Railmakers Inc
WDID
8 30NEC005756
Application type
No Exposure Certification
City
Costa Mesa
County
Orange
ZIP
92627
Primary SIC code
3429
SIC description
Hardware, NEC
Date active
1992-12-15
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
33.63971, -117.93473
HUC12 subwatershed
Greenville Banning Channel-Santa Ana River
HUC12 code
180702031003
Impaired-water associations (derived)
4
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Same impaired-water subwatershed

4 waterbodies
Huntington Beach State Park

Coastal & Bay Shoreline · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (2) Indicator Bacteria, PCBs (Polychlorinated biphenyls)

Distance

Confidence low

Fact sheet

Newport Beach

Coastal & Bay Shoreline · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Indicator Bacteria

Distance

Confidence low

Fact sheet

Newport Slough

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Indicator Bacteria

Distance

Confidence low

Fact sheet

Talbert Channel (Orange County)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Toxicity

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 (2)

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
2
TMDLs
1
Regulated parameters
2
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

San Diego Creek and Newport Bay Toxics TMDL

Receiving water named in TMDL Lower Newport Bay and Bay Segments (including Costa Mesa Channel and Santa Ana Delhi Channel)

2 limits
ParameterLimit typePeriodBasisLimitDue dateReported results for parameter
Copper, TotalVocabulary match: Copper (narrower)NELFINALINSTANTANEOUS.00578 mg/L2020-07-01None reported
Zinc, TotalVocabulary match: Zinc (narrower)NELFINALINSTANTANEOUS.095 mg/L2020-07-01None reported
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.

SMARTS monitoring

Self-reported industrial stormwater sampling results submitted to SMARTS.

No SMARTS monitoring results are recorded for this WDID in the statewide dataset.

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

No reporting year for this WDID contains samples eligible for NAL comparison. That can mean no analytical results were reported, the reported parameters have no adopted NAL, or the samples were taken at locations that are not permitted discharge points.

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 30NEC005756
Source feature ID
5876
Application type
No Exposure Certification
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