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Industrial stormwater facility

Mariposa County Unified School District

WDID 5F22NEC002763 · No Exposure Certification · Mariposa, Mariposa

SIC 4151 · School Buses · Regional Board 5 - Central Valley 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

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
37.49044, -119.96657
HUC12 subwatershed
Stockton Creek-Mariposa Creek
HUC12 code
180400011502
Impaired-water associations (derived)
0

Official

Facility record

Facility name
Mariposa County Unified School District
WDID
5F22NEC002763
Application type
No Exposure Certification
City
Mariposa
County
Mariposa
ZIP
95338
Primary SIC code
4151
SIC description
School Buses
Date active
2003-03-11
Regional Water Board
Regional Board 5 - Central Valley Region

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

No impaired water was geographically associated with this facility.

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
21
Sample events
7
Distinct parameters
3
Reporting years
2015 – 2016
First sample
2015-10-28
Latest sample
2016-10-28
Source regional dataset
Region 5F - Fresno
Source retrieved
Sep 16, 2026

Official SMARTS public reports

Parameters reported

Reported results over time

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Most recent reported results

Latest 25 of 21
Sample dateLocationParameterResultUnitsEvent
2016-10-28SP 2Oil and Grease.58mg/LQualifying Storm Event
2016-10-28SP 2pH8.1SUQualifying Storm Event
2016-10-28SP 2Total Suspended Solids (TSS)250mg/LQualifying Storm Event
2016-03-11SP 1Oil and Grease.98mg/LQualifying Storm Event
2016-03-11SP 1pH6.6SUQualifying Storm Event
2016-03-11SP 1Total Suspended Solids (TSS)280mg/LQualifying Storm Event
2016-03-11SP 2Oil and Grease.89mg/LQualifying Storm Event
2016-03-11SP 2pH7.1SUQualifying Storm Event
2016-03-11SP 2Total Suspended Solids (TSS)15mg/LQualifying Storm Event
2015-12-21SP 1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2015-12-21SP 1pH7.2SUQualifying Storm Event
2015-12-21SP 1Total Suspended Solids (TSS)34mg/LQualifying Storm Event
2015-12-21SP 2Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2015-12-21SP 2pH7.7SUQualifying Storm Event
2015-12-21SP 2Total Suspended Solids (TSS)ND (non-detect / est.)mg/LQualifying Storm Event
2015-10-28SP 1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2015-10-28SP 1pH7.2SUQualifying Storm Event
2015-10-28SP 1Total Suspended Solids (TSS)67mg/LQualifying Storm Event
2015-10-28SP 2Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2015-10-28SP 2pH7.2SUQualifying Storm Event
2015-10-28SP 2Total Suspended Solids (TSS)13mg/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

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).

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
5F22NEC002763
Source feature ID
4860
Application type
No Exposure Certification
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