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Industrial stormwater facility

Solar Turbines Kearny Mesa Fac

WDID 9 37I001828 · Notice of Intent · San Diego, San Diego

SIC 3511 · Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units · Regional Board 9 - San Diego Region

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

Hydrologic

Geographic context

Official facility coordinate plotted against the associated Final 2026 Integrated Report impaired-water geometry.

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  • Facility location (official coordinate)
  • Associated impaired-water geometry (Final 2026 Integrated Report)
  • YDOS-derived geographic context
  • Loading associated geometry…

Geometry shown is limited to waterbodies geographically associated with this facility. Geographic association does not establish a discharge connection, receiving-water connectivity, or causation.

Official facility point
32.81764, -117.12478
HUC12 subwatershed
Mission Valley-San Diego River
HUC12 code
180703040705
Impaired-water associations (derived)
3

Official

Facility record

Facility name
Solar Turbines Kearny Mesa Fac
WDID
9 37I001828
Application type
Notice of Intent
City
San Diego
County
San Diego
ZIP
92123
Primary SIC code
3511
SIC description
Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units
Date active
1992-03-30
Regional Water Board
Regional Board 9 - San Diego Region

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Nearby impaired water

1 waterbodies
Murphy Canyon

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (3) Benthic Community Effects, Nitrogen, Phosphorus

Distance 0.63 km

Confidence medium

Fact sheet ↗

Same impaired-water subwatershed

2 waterbodies
San Diego River (Lower)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (16) Benthic Community Effects, Bifenthrin, Chlordane, Chloride, Color, Cyfluthrin +10 more

Distance —

Confidence low

Fact sheet ↗

Shepherd Canyon East

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (2) Nitrogen, Phosphorus

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
399
Sample events
108
Distinct parameters
4
Reporting years
2015 – 2025
First sample
2015-09-15
Latest sample
2026-02-16
Source regional dataset
Region 9 - San Diego
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 399
Sample dateLocationParameterResultUnitsEvent
2026-02-16Sample Point 1 (North KM)Oil and Grease1.5mg/LQualifying Storm Event
2026-02-16Sample Point 1 (North KM)pH6SUQualifying Storm Event
2026-02-16Sample Point 1 (North KM)Total Suspended Solids (TSS)30mg/LQualifying Storm Event
2026-02-16Sample Point 2 (South KM)Oil and Grease2.4mg/LQualifying Storm Event
2026-02-16Sample Point 2 (South KM)pH6SUQualifying Storm Event
2026-02-16Sample Point 2 (South KM)Total Suspended Solids (TSS)140mg/LQualifying Storm Event
2026-02-16Sample Point 3 (South St)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2026-02-16Sample Point 3 (South St)pH6SUQualifying Storm Event
2026-02-16Sample Point 3 (South St)Total Suspended Solids (TSS)20mg/LQualifying Storm Event
2025-11-21Sample Point 1 (North KM)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2025-11-21Sample Point 1 (North KM)pH6.5SUQualifying Storm Event
2025-11-21Sample Point 1 (North KM)Total Suspended Solids (TSS)2mg/LQualifying Storm Event
2025-11-21Sample Point 2 (South KM)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2025-11-21Sample Point 2 (South KM)pH6.5SUQualifying Storm Event
2025-11-21Sample Point 2 (South KM)Total Suspended Solids (TSS)2.2mg/LQualifying Storm Event
2025-11-21Sample Point 3 (South St)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2025-11-21Sample Point 3 (South St)pH6.5SUQualifying Storm Event
2025-11-21Sample Point 3 (South St)Total Suspended Solids (TSS)5.1mg/LQualifying Storm Event
2025-10-14Sample Point 1 (North KM)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2025-10-14Sample Point 1 (North KM)pH6.5SUQualifying Storm Event
2025-10-14Sample Point 1 (North KM)Total Suspended Solids (TSS)2.6mg/LQualifying Storm Event
2025-10-14Sample Point 2 (South KM)Oil and GreaseND —(non-detect / est.)mg/LQualifying Storm Event
2025-10-14Sample Point 2 (South KM)pH6SUQualifying Storm Event
2025-10-14Sample Point 2 (South KM)Total Suspended Solids (TSS)4.3mg/LQualifying Storm Event
2025-10-14Sample Point 3 (South St)Oil and GreaseND —(non-detect / est.)mg/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
11
Years with an NAL exceedance
0
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Oil and Grease

oil_grease

Instantaneous maximum—0 samples above25 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.9 eligible7 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum—0 samples above6 – 9 pH unitsWithin NAL rangeNo eligible result in this reporting year was outside the instantaneous maximum NAL.9 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Total Suspended Solids (TSS)

tss

Instantaneous maximum—0 samples above400 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.9 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).

Documents

Documents on file

Attachment inventory recorded in the State Water Board SMARTS public attachment workflow for this permit.

Source inventory — SMARTS public attachments. Documents are operator-submitted.

No document inventory has been indexed for this permit yet. The statewide document index is being built out; coverage is reported on the data-freshness panel.

Attachments for this permit remain viewable in the source system. Open the SMARTS public workflow ↗

Enforcement

Enforcement records

Enforcement actions as recorded by the State Water Board for this permit, in the source system's own terminology.

Source record — SMARTS enforcement data

Structured enforcement records are not yet connected for this site. The absence of a record is not a finding about this facility.

Reporting

Reporting and ERA records

Annual report and Exceedance Response Action information as stated by the source system, distinguished from what is inferred from document metadata.

Source record — SMARTS reporting data

Structured reporting and ERA records are not yet connected for this site.

Recent activity

Recent source changes

New or changed source records this platform detected for this permit, newest first.

Derived

No source change has been detected for this permit yet. Change detection begins from the date each dataset was first indexed.

Provenance

Source & provenance

Source agency
California State Water Resources Control Board
Source dataset
Industrial General Permit — permitted facilities (statewide GIS layer)
WDID
9 37I001828
Source feature ID
17287
Application type
Notice of Intent
Regional board derivation
WDID region prefix
Geometry status
valid
Last successful facility import
Sep 16, 2026, 10:48 PM UTC

Official IGP permitted facilities feature layer ↗