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Industrial stormwater facility

Keith Day Company Inc

3 27I024222 · Notice of Intent · Salinas, Monterey

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

Official

Facility record

Facility name
Keith Day Company Inc
WDID
3 27I024222
Application type
Notice of Intent
City
Salinas
County
Monterey
ZIP
93907
Primary SIC code
4212
SIC description
Local Trucking Without Storage
Date active
2013-04-23
Regional Water Board
Regional Board 3 - Central Coast Region

Hydrologic

Geographic context

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

Official facility point
36.69218, -121.67465
HUC12 subwatershed
Alisal Slough-Tembladero Slough
HUC12 code
180600150103
Impaired-water associations (derived)
6
Loading map…

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Subwatershed + nearby

1 waterbodies
Salinas Reclamation Canal

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (31) Aluminum, Ammonia, Benthic Community Effects, Bifenthrin, Chlorpyrifos, Clothianidin +25 more

Distance 0.41 km

Confidence high

Fact sheet

Same impaired-water subwatershed

5 waterbodies
Alisal Slough (Monterey County)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (7) Ammonia, Diazinon, Imidacloprid, Malathion, Nitrate, Toxicity +1 more

Distance

Confidence low

Fact sheet

Espinosa Slough

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (11) Ammonia, Bifenthrin, Diazinon, Malathion, Nitrate, Pesticides +5 more

Distance

Confidence low

Fact sheet

Merrit Ditch

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (14) Ammonia, Bifenthrin, Clothianidin, Copper, Cypermethrin, Diazinon +8 more

Distance

Confidence low

Fact sheet

Santa Rita Creek (Monterey County)

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (15) Ammonia, Clothianidin, Cyhalothrin, Lambda, Escherichia coli (E. coli), Fecal Coliform, Imidacloprid +9 more

Distance

Confidence low

Fact sheet

Tembladero Slough

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (31) Aluminum, Bifenthrin, Chlordane, Chlorophyll-a, Chlorpyrifos, Chromium +25 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

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
159
Sample events
19
Distinct parameters
9
Reporting years
2015 – 2024
First sample
2015-12-22
Latest sample
2025-02-13
Source regional dataset
Region 3 - Central Coast
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 159
Sample dateLocationParameterResultUnitsEvent
2025-02-13Pond OutfallAmmonia as N, Total0mg/LQualifying Storm Event
2025-02-13Pond OutfallBOD, Biochemical oxygen demand6mg/LQualifying Storm Event
2025-02-13Pond OutfallCopper.026mg/LQualifying Storm Event
2025-02-13Pond OutfallNitrate.3mg/LQualifying Storm Event
2025-02-13Pond OutfallNitrogen, Nitrite0mg/LQualifying Storm Event
2025-02-13Pond OutfallOil and Grease2.2mg/LQualifying Storm Event
2025-02-13Pond OutfallpH7.9SUQualifying Storm Event
2025-02-13Pond OutfallTotal Suspended Solids (TSS)155mg/LQualifying Storm Event
2025-02-13Pond OutfallTurbidity205NTUQualifying Storm Event
2024-01-22Pond OutfallAmmonia as N, Total0mg/LQualifying Storm Event
2024-01-22Pond OutfallBOD, Biochemical oxygen demand5.8mg/LQualifying Storm Event
2024-01-22Pond OutfallCopper.015mg/LQualifying Storm Event
2024-01-22Pond OutfallNitrate.42mg/LQualifying Storm Event
2024-01-22Pond OutfallNitrogen, Nitrite0mg/LQualifying Storm Event
2024-01-22Pond OutfallpH7.2SUQualifying Storm Event
2024-01-22Pond OutfallTotal Suspended Solids (TSS)96mg/LQualifying Storm Event
2024-01-22Pond OutfallTurbidity260NTUQualifying Storm Event
2023-12-19Pond OutfallAmmonia as N, Total0mg/LQualifying Storm Event
2023-12-19Pond OutfallBOD, Biochemical oxygen demand4.6mg/LQualifying Storm Event
2023-12-19Pond OutfallCopper.022mg/LQualifying Storm Event
2023-12-19Pond OutfallNitrate3.2mg/LQualifying Storm Event
2023-12-19Pond OutfallNitrogen, Nitrite.14mg/LQualifying Storm Event
2023-12-19Pond OutfallOil and Grease0mg/LQualifying Storm Event
2023-12-19Pond OutfallpH7.6SUQualifying Storm Event
2023-12-19Pond OutfallTotal Suspended Solids (TSS)29mg/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
8
Years with an NAL exceedance
1
Most recent evaluated year
RY 2024
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Ammonia, Total (as N)

ammonia_n

Annual0 mg/L2.14 mg/LAt or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0× 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)

Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C)

bod

Annual6 mg/L30 mg/LAt or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0.2× 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)

Copper, Total

copper_total

Annual0.026 mg/L0.033 mg/LAt or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0.78× 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 eligiblecount 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

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) impairmentMerrit Ditch

1 reporting year above the annual NAL, most recently RY 2022 · 1 303(d) listing · association: derived watershed association (low confidence)

CopperMonitoringAbove NAL303(d) impairmentSalinas Reclamation Canal

1 reporting year above the annual NAL, most recently RY 2022 · 1 303(d) listing · association: derived nearby in watershed (high confidence)

CopperMonitoringAbove NAL303(d) impairmentTembladero Slough

1 reporting year above the annual NAL, most recently RY 2022 · 1 303(d) listing · association: derived watershed association (low 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
3 27I024222
Source feature ID
10723
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