Industrial stormwater facility
WDID 1 12I026993 · Notice of Intent · Arcata, Humboldt
SIC 4212 · Local Trucking Without Storage · Regional Board 1 - North Coast Region
Hydrologic
Official facility coordinate plotted against the associated Final 2026 Integrated Report impaired-water 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.
Intelligence summary
What is available for this facility across the connected datasets.
Official
303(d) context
Grouped by derived geographic association class.
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (1) Indicator Bacteria
Bay & Harbor · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (3) Dioxin compounds (including 2,3,7,8-TCDD), Dioxin Toxic Equivalents, PCBs (Polychlorinated biphenyls)
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (1) Indicator Bacteria
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (2) Indicator Bacteria, Sediment
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (3) Aluminum, Sediment, Sedimentation/Siltation
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (2) Aluminum, Manganese
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.
Water Board-stated TMDL waste load allocations applied to this industrial permit in SMARTS.
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
Self-reported industrial stormwater sampling results as submitted by the discharger to SMARTS.
Loading reported results…
| Sample date | Location | Parameter | Result | Units | Event |
|---|---|---|---|---|---|
| 2026-02-17 | Station 1 | Oil and Grease | 2.6 | mg/L | Qualifying Storm Event |
| 2026-02-17 | Station 1 | Oil and Grease | DNQ 2.6(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-02-17 | Station 1 | pH | 8.1 | SU | Qualifying Storm Event |
| 2026-02-17 | Station 1 | pH | 8.1 | SU | Qualifying Storm Event |
| 2026-02-17 | Station 1 | Total Suspended Solids (TSS) | 100 | mg/L | Qualifying Storm Event |
| 2026-02-17 | Station 1 | Total Suspended Solids (TSS) | 100 | mg/L | Qualifying Storm Event |
| 2025-12-17 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-12-17 | Station 1 | pH | 8 | SU | Qualifying Storm Event |
| 2025-12-17 | Station 1 | Total Suspended Solids (TSS) | 17 | mg/L | Qualifying Storm Event |
| 2025-01-03 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-01-03 | Station 1 | pH | 7.7 | SU | Qualifying Storm Event |
| 2025-01-03 | Station 1 | Total Suspended Solids (TSS) | 28 | mg/L | Qualifying Storm Event |
| 2024-11-20 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2024-11-20 | Station 1 | pH | 7.4 | SU | Qualifying Storm Event |
| 2024-11-20 | Station 1 | Total Suspended Solids (TSS) | 21 | mg/L | Qualifying Storm Event |
| 2024-01-31 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2024-01-31 | Station 1 | pH | 7.6 | SU | Qualifying Storm Event |
| 2024-01-31 | Station 1 | Total Suspended Solids (TSS) | 14 | mg/L | Qualifying Storm Event |
| 2023-12-20 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2023-12-20 | Station 1 | pH | 7.3 | SU | Qualifying Storm Event |
| 2023-12-20 | Station 1 | Total Suspended Solids (TSS) | 8.2 | mg/L | Qualifying Storm Event |
| 2023-02-22 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2023-02-22 | Station 1 | pH | 7.8 | SU | Qualifying Storm Event |
| 2023-02-22 | Station 1 | Total Suspended Solids (TSS) | 8.7 | mg/L | Qualifying Storm Event |
| 2022-12-08 | Station 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying 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
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).
| Parameter | NAL type | Calculated value | NAL | Result | Samples used | Method |
|---|---|---|---|---|---|---|
Oil and Grease oil_grease | Instantaneous maximum | —0 samples above | 25 mg/L | At or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL. | 3 eligible2 non-detect as zero | count of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year |
pH ph | Instantaneous maximum | —0 samples above | 6 – 9 pH units | Within NAL rangeNo eligible result in this reporting year was outside the instantaneous maximum NAL. | 3 eligible | count 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 above | 400 mg/L | At or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL. | 3 eligible | count 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
Attachment inventory recorded in the State Water Board SMARTS public attachment workflow for this permit.
Metadata indicators
DerivedDocument indicators are YDOS-derived counts and dates calculated from SMARTS attachment metadata. They describe what is on file, not whether a facility complied with any requirement.
57 substantive of 90 indexed attachments
2019.12 SWPPP REcology Arcata
Source file type SWPPP · part 1/1 · 2019-12-31 · 10.5 MB
Submitted report pdf
Source file type Submitted Report PDF · 2026-07-08 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-07-01 · 819 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-06-12 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-03-02 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-07-08 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-05-30 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-12-20 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-06-17 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-03-27 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-02-22 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-10 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-06-29 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-03-09 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-07-15 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-03-09 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-01-12 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-07-13 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-22 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-12-22 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-07-01 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-04-15 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-01-03 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-07-12 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-07-01 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-02-14 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-07-06 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-04-02 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-02-12 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-06-28 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-05-09 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-01-17 · 405 KB
2026.02.17 Arcata QSE SW1
Source file type Laboratory Results · 2026-06-08 · 666 KB
2026.02.17 Arcata QSE SW1
Source file type Laboratory Results · 2026-03-13 · 666 KB
2025.12.17 Arcata QSE SW1
Source file type Laboratory Results · 2025-12-30 · 336 KB
2025.01.03 Arcata QSE SW1
Source file type Laboratory Results · 2025-02-11 · 403 KB
2024.11.20 - Arcata - QSE -SW1
Source file type Laboratory Results · 2024-12-09 · 411 KB
2023.12.20 Arcata QSE SW1
Source file type Laboratory Results · 2024-02-22 · 422 KB
2024.01.31 Arcata QSE SW1
Source file type Laboratory Results · 2024-02-16 · 407 KB
2022.12.08 - Arcata - QSE #1 - S1
Source file type Laboratory Results · 2023-06-28 · 328 KB
Arcata Lab Results QSE 2
Source file type Laboratory Results · 2023-03-09 · 345 KB
2022.02.22_RA
Source file type Laboratory Results · 2022-03-03 · 330 KB
2021.12.21 - RA - QSE #1
Source file type Laboratory Results · 2022-01-07 · 353 KB
2021.01.22 Laboratory Results (S-1)
Source file type Laboratory Results · 2021-02-17 · 280 KB
2020.11.13 Laboratory Results
Source file type Laboratory Results · 2020-12-15 · 279 KB
2020.3.20 Laboratory Results
Source file type Laboratory Results · 2020-04-15 · 239 KB
2019 Lab Results
Source file type Laboratory Results · 2020-01-03 · 248 KB
2019.03.25 Laboratory Results
Source file type Laboratory Results · 2019-06-28 · 347 KB
Analytical Results
Source file type Laboratory Results · part 1/1 · 2019-02-14 · 326 KB
Anayltyical Report
Source file type Laboratory Results · part 1/1 · 2019-02-14 · 326 KB
Lab Results QSE #2
Source file type Laboratory Results · part 1/1 · 2018-04-02 · 293 KB
QSE #1 Lab results
Source file type Laboratory Results · part 1/1 · 2018-02-12 · 341 KB
Apr 19, 2017 lab rpt
Source file type Laboratory Results · part 1/1 · 2017-05-08 · 300 KB
Recology Arcata QSE #1 Lab Analysis
Source file type Laboratory Results · part 1/1 · 2017-01-17 · 396 KB
SFR Cert_RHC-Arcata_2023.11.14
Source file type Memo · 2023-11-14 · 167 KB
2019.12 Sampling Fequency Reduction Recology Arcata
Source file type Supporting Documentation · 2019-12-30 · 123 KB
2019.12 MAP SWPPP Reology Arcata
Source file type Supporting Documentation · 2019-12-30 · 3.5 MB
Enforcement
Enforcement actions as recorded by the State Water Board for this permit, in the source system's own terminology.
Structured enforcement records are not yet connected for this site. The absence of a record is not a finding about this facility.
Reporting
Annual report and Exceedance Response Action information as stated by the source system, distinguished from what is inferred from document metadata.
Annual report documents on file
DerivedYears are YDOS-derived from attachment metadata. A gap means no annual-report document was identified for that year in the attachment index — it is not a finding that a report was not filed.
Recent activity
New or changed source records this platform detected for this permit, newest first.
No source change has been detected for this permit yet. Change detection begins from the date each dataset was first indexed.
Provenance