Organic Milling Inc

Active WDID 4 19I025302 San Dimas, Los Angeles County Region 4 · Los Angeles

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
San Dimas, Los Angeles County
Region 4 · Los Angeles · Location · Statewide map
Receiving water
San Dimas Wash (as reported by the facility)
Evidence: candidate, awaiting review Details
Identified receiving water on the 2026 303(d) list
Not established
Shown only when the reported receiving water is identified and corroborated.
2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
2 waterbodies; 1 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
116 distinct results, 11 reporting years (2015 to 2025)
Most recent sample Feb 17, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
1 inspection · 8 violation records · 6 enforcement actions
Counts as published in SMARTS; not a compliance determination · Details
SMARTS TMDL records Evidence: SMARTS-reported
0 records
TMDL records

Each label shows where a statement comes from. How to read the labels.

Overview and location

Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby

Open this facility on the statewide map

Reported location Evidence: facility-reported

Coordinates
34.11858, -117.81619
Precision
5 decimal places
Shared point
No
Matches application record
same

Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.

Facility address
505 W Allen Ave, San Dimas 91773
Regional Water Board
4 — Los Angeles

HUC12 watershed Evidence: spatial

  • Big Dalton Wash HUC12 180701060402

The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.

Permits and applications Evidence: SMARTS record

Current permit record

Permit type
Industrial
Application type
Notice of Intent (WDID code I)
Status
Active
Operator
Organic Milling Inc
Primary industry (SIC)
2043-Cereal Breakfast Foods
Application ID
453149
NOI processed
Feb 27, 2015
Last certified
Feb 06, 2024
Facility size
144000 SqFt
Impervious area
95 %

Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
453149 IndustrialActiveFeb 27, 2015 —Feb 06, 2024

Every storm water application SMARTS records for this WDID, newest first (1).

Receiving water

Reported by the facility Evidence: facility-reported
San Dimas Wash
Discharges directly / indirectly
N / Y (as answered in the permit application)

Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

Why it is not confirmed (1)
  • C1 name is only a prefix of official names

1 official waterbody shares this name; none is assigned without review.

Impaired waters and TMDLs

Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.

Nearby waterbodies Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.

Nearest 2026 Integrated Report waterbodies
Waterbody (2026 Integrated Report)Distance2026 303(d) listAppendix A decisions
San Dimas Wash (Los Angeles County) CAR4052000020210709035177343 m listed3
Big Dalton Wash CAR4052000020210323064004929 m not listed0

Waterbodies within 1.0 km of the reported facility location. Method proximity/1.

SMARTS TMDL records Evidence: SMARTS-reported

No TMDL records for this facility in the SMARTS TMDL export.

Reported monitoring results Evidence: facility-reported

Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.

116 distinct measurements across 3 parameters, most recent sample Feb 17, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025153 0 Oct 14, 2025Feb 17, 2026
202463 0 Feb 06, 2025Feb 14, 2025
2023153 0 Nov 15, 2023Mar 30, 2024
2022123 0 Nov 07, 2022Jan 09, 2023
202163 0 Oct 25, 2021Dec 14, 2021
202093 0 Jan 29, 2021Mar 15, 2021
2019183 0 Nov 20, 2019Apr 06, 2020
2018153 0 Nov 03, 2018Jan 31, 2019
201753 0 Jan 09, 2018Mar 22, 2018
201693 0 Nov 27, 2016Dec 21, 2016
201563 0 Jan 05, 2016Feb 01, 2016

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
pHSU39 0Jan 05, 2016Feb 17, 2026 Results
Total Suspended Solids (TSS)mg/L39 1Jan 05, 2016Feb 17, 2026 Results
Oil and Greasemg/L38 20Jan 05, 2016Feb 17, 2026 Results

All results (116 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 17, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1369576
Feb 17, 2026 Oil and Grease DNQ 1.4 mg/L Effluent Qualifying Storm Event E1664A 1369576
Feb 17, 2026 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1369576
Feb 17, 2026 pH 6.03 SU Effluent Qualifying Storm Event pH_Field 1369576
Feb 17, 2026 Total Suspended Solids (TSS) 13 mg/L Effluent Qualifying Storm Event A2540D 1369576
Feb 17, 2026 Total Suspended Solids (TSS) 13 mg/L Effluent Qualifying Storm Event A2540D 1369576
Nov 21, 2025 Oil and Grease 9.2 mg/L Effluent Qualifying Storm Event E1664A 1359687
Nov 21, 2025 Oil and Grease 8.3 mg/L Effluent Qualifying Storm Event E1664A 1359687
Nov 21, 2025 pH 7.43 SU Effluent Qualifying Storm Event pH_Field 1359687
Nov 21, 2025 pH 7.6 SU Effluent Qualifying Storm Event pH_Field 1359687
Nov 21, 2025 Total Suspended Solids (TSS) 120 mg/L Effluent Qualifying Storm Event A2540D 1359687
Nov 21, 2025 Total Suspended Solids (TSS) 120 mg/L Effluent Qualifying Storm Event A2540D 1359687
Oct 14, 2025 Oil and Grease DNQ 5.2 mg/L Effluent Qualifying Storm Event E1664A 1355671
Oct 14, 2025 pH 7.9 SU Effluent Qualifying Storm Event pH_Field 1355671
Oct 14, 2025 Total Suspended Solids (TSS) 63 mg/L Effluent Qualifying Storm Event A2540D 1355671
Feb 14, 2025 Oil and Grease DNQ 7.4 mg/L Effluent Qualifying Storm Event E1664A 1324496
Feb 14, 2025 pH 7.54 SU Effluent Qualifying Storm Event pH_Field 1324496
Feb 14, 2025 Total Suspended Solids (TSS) 50 mg/L Effluent Qualifying Storm Event A2540D 1324496
Feb 06, 2025 Oil and Grease DNQ 2.6 mg/L Effluent Qualifying Storm Event E1664A 1323471
Feb 06, 2025 pH 6.81 SU Effluent Qualifying Storm Event A4500HB 1323471
Feb 06, 2025 Total Suspended Solids (TSS) 95 mg/L Effluent Qualifying Storm Event A2540D 1323471
Mar 30, 2024 Oil and Grease DNQ 4.1 mg/L Effluent Qualifying Storm Event E1664A 1284698
Mar 30, 2024 pH 8 SU Effluent Qualifying Storm Event pH_Field 1284698
Mar 30, 2024 Total Suspended Solids (TSS) 40 mg/L Effluent Qualifying Storm Event A2540D 1284698
Feb 19, 2024 Oil and Grease DNQ 6.3 mg/L Effluent Qualifying Storm Event E1664A 1282293
Feb 19, 2024 pH 7.8 SU Effluent Qualifying Storm Event pH_Field 1282293
Feb 19, 2024 Total Suspended Solids (TSS) 37 mg/L Effluent Qualifying Storm Event A2540D 1282293
Feb 01, 2024 Oil and Grease DNQ 3.1 mg/L Effluent Qualifying Storm Event E1664A 1278703
Feb 01, 2024 pH 8.4 SU Effluent Qualifying Storm Event pH_Field 1278703
Feb 01, 2024 Total Suspended Solids (TSS) 39 mg/L Effluent Qualifying Storm Event A2540D 1278703
Dec 20, 2023 Oil and Grease 38 mg/L Effluent Qualifying Storm Event E1664A 1271709
Dec 20, 2023 pH 6.8 SU Effluent Qualifying Storm Event pH_Field 1271709
Dec 20, 2023 Total Suspended Solids (TSS) 540 mg/L Effluent Qualifying Storm Event A2540D 1271709
Nov 15, 2023 Oil and Grease 13 mg/L Effluent Qualifying Storm Event E1664A 1268464
Nov 15, 2023 pH 6.9 SU Effluent Qualifying Storm Event pH_Field 1268464
Nov 15, 2023 Total Suspended Solids (TSS) 170 mg/L Effluent Qualifying Storm Event A2540D 1268464
Jan 09, 2023 Oil and Grease DNQ 10 mg/L Effluent Qualifying Storm Event E1664A 1237678
Jan 09, 2023 pH 8.2 SU Effluent Qualifying Storm Event pH_Field 1237678
Jan 09, 2023 Total Suspended Solids (TSS) 5.5 mg/L Effluent Qualifying Storm Event A2540D 1237678
Jan 03, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664A 1237677
Jan 03, 2023 pH 4.4 SU Effluent Qualifying Storm Event pH_Field 1237677
Jan 03, 2023 Total Suspended Solids (TSS) ND mg/L Effluent Qualifying Storm Event A2540D 1237677
Dec 12, 2022 Oil and Grease 3.5 mg/L Effluent Qualifying Storm Event E1664A 1221394
Dec 12, 2022 pH 8.5 SU Effluent Qualifying Storm Event pH_Field 1221394
Dec 12, 2022 Total Suspended Solids (TSS) 1.1 mg/L Effluent Qualifying Storm Event A2540D 1221394
Nov 07, 2022 Oil and Grease 5 mg/L Effluent Qualifying Storm Event E1664A 1216477
Nov 07, 2022 pH 9.3 SU Effluent Qualifying Storm Event pH_Field 1216477
Nov 07, 2022 Total Suspended Solids (TSS) 15 mg/L Effluent Qualifying Storm Event A2540D 1216477
Dec 14, 2021 Oil and Grease DNQ 2.3 mg/L Effluent Qualifying Storm Event E1664A 1186313
Dec 14, 2021 pH 7.8 SU Effluent Qualifying Storm Event pH_Field 1186313

Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.

Compliance and enforcement records Evidence: SMARTS record

These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.

Compliance and enforcement records by type
Record typeRecordsAs publishedDatesRetrievedList
Violations8 8 Violation · 0 Potential (preliminary) · 0 Dismissed Aug 14, 2015 – Sep 24, 2022 Oct 21, 2026 All violations
Enforcement actions6 5 issued · 0 draft · 1 withdrawn, rescinded or superseded Mar 21, 2016 – May 02, 2024 Oct 21, 2026 All actions
Inspections1inspections, not findings Apr 17, 2025 – Apr 17, 2025 Oct 21, 2026 All inspections
Annual reports11certified reports (contents not shown) 2015 – 2025 Oct 21, 2026 All reports
Water-quality-based corrective action reports0reports, by parameter — Oct 21, 2026

Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.

Chronological record history (26 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 14, 2026 Annual reports 1338436 Annual report 2025 —
Jun 18, 2025 Annual reports 1297428 Annual report 2024 —
Apr 17, 2025 Inspections 2067626 B Type compliance PerformedNo Further Action
Jun 28, 2024 Annual reports 1246666 Annual report 2023 —
May 02, 2024 Enforcement actions 455454 EPL (Expedited Payment Letter) RescindedR4-2024-0109
Jul 13, 2023 Annual reports 1192827 Annual report 2022 —
Dec 12, 2022 Annual reports 1116567 Annual report 2021 —
Oct 19, 2022 Enforcement actions 447879 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Sep 24, 2022 Violations 882918 Late Report ViolationReport
Jun 02, 2022 Enforcement actions 446638 NOV (Notice of Violation) Historical
Jun 02, 2022 Violations 881859 Late Report ViolationReport
Jul 13, 2021 Annual reports 1064735 Annual report 2020 —
Apr 30, 2021 Violations 890756 Late Report ViolationReport
Apr 01, 2021 Violations 890755 Late Report ViolationReport
Mar 18, 2021 Violations 890754 Late Report ViolationReport
Jan 08, 2021 Enforcement actions 439645 NOV (Notice of Violation) Historical
Jan 08, 2021 Violations 875938 Incomplete/Insufficient SWPPP ViolationReport
Jun 25, 2020 Annual reports 981770 Annual report 2019 —
Jul 23, 2019 Annual reports 958097 Annual report 2018 —
Jul 10, 2018 Annual reports 943543 Annual report 2017 —
Jun 12, 2017 Annual reports 883104 Annual report 2016 —
Oct 27, 2016 Annual reports 843452 Annual report 2015 —
Oct 04, 2016 Enforcement actions 424654 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical
Oct 04, 2016 Violations 861721 Late Report ViolationReport
Mar 21, 2016 Enforcement actions 422923 1st NNC - AR (First Notice of Non-Compliance (annual report)) Historical

Sources and provenance

Sources behind this page
InformationSourceRetrieved or published
Permit, location, receiving-water textSMARTS Industrial Application Specific DataOct 20, 2026
Permit historySMARTS Storm Water ApplicationsOct 20, 2026
Monitoring resultsSMARTS Industrial Parameter DataOct 20, 2026
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)USGS2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)SWRCB2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)SWRCB GIS2026-10-22
SMARTS TMDL requirementsSMARTS2026-10-21

Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.

How to read the evidence labels

Records are shown as published and are not compliance determinations. How geographic context is derived.