Industrial stormwater facility
WDID 1 08I023641 · Notice of Intent · Smith River, Del Norte
SIC 1442 · Construction Sand and Gravel · 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 (3) Alkalinity as CaCO3, Copper, Diuron
River & Stream · Integrated Report category 5 · TMDL required
Listed pollutants / stressors (1) Copper
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 |
|---|---|---|---|---|---|
| 2026-04-01 | OF-1 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .066 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-1 | pH | 7.02 | SU | Qualifying Storm Event |
| 2026-04-01 | OF-1 | Total Suspended Solids (TSS) | 58 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .082 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-2 | pH | 7.3 | SU | Qualifying Storm Event |
| 2026-04-01 | OF-2 | Total Suspended Solids (TSS) | 82 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-3 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .085 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-3 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-3 | pH | 7.32 | SU | Qualifying Storm Event |
| 2026-04-01 | OF-3 | Total Suspended Solids (TSS) | 72 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-4 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .12 | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-4 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-01 | OF-4 | pH | 7.42 | SU | Qualifying Storm Event |
| 2026-04-01 | OF-4 | Total Suspended Solids (TSS) | 95 | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-1 | Nitrate/Nitrite (Nitrite + Nitrate as N) | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-1 | pH | 8.1 | SU | Qualifying Storm Event |
| 2026-02-23 | OF-1 | Total Suspended Solids (TSS) | 18 | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-2 | pH | 8.12 | SU | Qualifying Storm Event |
| 2026-02-23 | OF-2 | Total Suspended Solids (TSS) | 26 | mg/L | Qualifying Storm Event |
| 2026-02-23 | OF-3 | Nitrate/Nitrite (Nitrite + Nitrate as N) | 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 |
|---|---|---|---|---|---|---|
Nitrite Plus Nitrate (as N) nitrate_nitrite_n | Annual | 1.236 mg/L as N | 0.68 mg/L as N | Above NALAnnual average of 20 eligible result(s) compared with the annual NAL.1.82× threshold | 20 eligible4 non-detect as zero | arithmetic 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 maximum | —0 samples above | 25 mg/L | At or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL. | 20 eligible17 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. | 20 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. | 20 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.
90 substantive of 125 indexed attachments
Revised SWPPP
Source file type SWPPP · part 1/1 · 2022-10-19 · 1.6 MB
Granite SWPPP with Signature Page
Source file type SWPPP · part 1/1 · 2015-08-13 · 1.5 MB
Smith River (aka Granite) Site Map
Source file type Facility/Site Map · part 1/1 · 2015-06-16 · 143 KB
Smith River (aka Granite) Site SWPPP
Source file type SWPPP · part 1/1 · 2015-06-16 · 1.1 MB
Submitted report pdf
Source file type Submitted Report PDF · 2026-07-07 · 819 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-04-27 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-03-24 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-01-15 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-12-12 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-07-10 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-03-07 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-12-06 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-07-03 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-02-23 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-01-04 · 160 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-01-04 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-09 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-02-10 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-12-10 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-07-12 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-03-28 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-02-03 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-12-28 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-11-24 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-11-24 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-07-12 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-05 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-05 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-07-11 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-02-27 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-02-03 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-01-09 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-09-19 · 407 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-07-11 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-07-14 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-07-10 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2016-07-12 · 911 KB
Stormwater Sample Results
Source file type Laboratory Results · part 1/1 · 2026-04-27 · 662 KB
Stormwater Sample Results
Source file type Laboratory Results · part 1/1 · 2026-03-24 · 812 KB
Stormwater Sample Results
Source file type Laboratory Results · part 1/1 · 2026-01-15 · 777 KB
Stormwater Sample Results
Source file type Laboratory Results · part 1/1 · 2025-12-12 · 3.2 MB
Stormwater Sample Results with PH Readings
Source file type Laboratory Results · part 1/1 · 2025-03-07 · 7.8 MB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2024-12-06 · 2.0 MB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2024-02-23 · 719 KB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2024-01-04 · 1.4 MB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2023-02-10 · 879 KB
Lab Sample Results at Granite Sample Date 11/11/22
Source file type Laboratory Results · part 1/5 · 2022-12-10 · 330 KB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2022-03-28 · 601 KB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2022-02-03 · 587 KB
Granite OF1 Through OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2021-12-28 · 390 KB
Granite OF1 and OF2 Lab Results
Source file type Laboratory Results · part 1/1 · 2021-11-24 · 351 KB
Granite OF3 and OF4 Lab Results
Source file type Laboratory Results · part 1/1 · 2021-11-24 · 329 KB
Granite OF1 and OF3 Lab Results
Source file type Laboratory Results · part 1/1 · 2021-02-05 · 393 KB
Granite OF1 and OF3 Lab Results
Source file type Laboratory Results · part 1/1 · 2021-02-05 · 374 KB
Granite OF-1 and OF-3 Storm Water Samples
Source file type Laboratory Results · part 1/1 · 2020-02-27 · 281 KB
Granite OF-1 and OF-3 Water Samples
Source file type Laboratory Results · part 1/1 · 2020-02-03 · 247 KB
Granite Storm Water Samples 12-11-19
Source file type Laboratory Results · part 1/1 · 2020-01-09 · 238 KB
Granite_2-25-2019_Water Sample Results_OF-1 and OF-3
Source file type Laboratory Results · part 1/1 · 2019-09-19 · 249 KB
Granite_2-13-2019_Water Sample Results_OF-1 and OF-3
Source file type Laboratory Results · part 1/1 · 2019-09-19 · 281 KB
Granite 2/25/19 Water Samples
Source file type Laboratory Results · part 1/1 · 2019-03-21 · 214 KB
Granite 2/13/19 Water Samples
Source file type Laboratory Results · part 1/1 · 2019-03-12 · 237 KB
Granite SW Results OF1 and OF3 3-15-18
Source file type Laboratory Results · part 1/1 · 2018-04-09 · 76 KB
Granite 2/28/18 Water Samples
Source file type Laboratory Results · part 1/1 · 2018-03-26 · 80 KB
Water Sample Results 1/18/17 Sample Date
Source file type Laboratory Results · part 1/1 · 2017-07-07 · 285 KB
Granite Water Samples_1/10/2017
Source file type Laboratory Results · part 1/1 · 2017-02-01 · 97 KB
Smith River Granite OF-1 and OF-3
Source file type Laboratory Results · part 1/1 · 2016-11-10 · 202 KB
Smith River Granite OF-1 and OF-3
Source file type Laboratory Results · part 1/1 · 2016-11-10 · 217 KB
2/18/2016 Storm Water Sample Results
Source file type Laboratory Results · part 1/1 · 2016-03-08 · 248 KB
Granite - OF-1 and OF-3 Sampling Results
Source file type Laboratory Results · part 1/1 · 2016-02-09 · 267 KB
Laboratory Results 12/3/2015
Source file type Laboratory Results · part 1/1 · 2016-01-04 · 123 KB
Samples OF-1 & OF-3 Smith River
Source file type Laboratory Results · part 1/1 · 2015-12-15 · 275 KB
Analysis and Corrective Measures for TSS Exceedance
Source file type WQBCA Report · part 1/1 · 2024-01-04 · 78 KB
Supporting Documentation for PH at Granite OF4
Source file type Supporting Documentation · part 5/5 · 2022-12-10 · 64 KB
Supporting Documentation for PH at Granite OF3
Source file type Supporting Documentation · part 4/5 · 2022-12-10 · 82 KB
Supporting Documentation for PH at Granite OF2
Source file type Supporting Documentation · part 3/5 · 2022-12-10 · 83 KB
Supporting Documentation for PH at Granite OF1
Source file type Supporting Documentation · part 2/5 · 2022-12-10 · 73 KB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2017-01-10 · 1.9 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2017-01-10 · 2.5 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2017-01-10 · 2.7 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2016-02-10 · 2.7 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2016-02-10 · 1.5 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2016-02-10 · 2.4 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2016-02-10 · 1.8 MB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2016-02-10 · 1.9 MB
140925_PRK_IGPNoDischarge_Smith River Site.pdf
Source file type Cover/Explanation Letter · part 1/1 · 2014-10-27 · 446 KB
Tidewater Smith River
Source file type Photograph · part 1/1 · 2014-08-06 · 3.4 MB
Tidewater Smith River site
Source file type Photograph · part 1/1 · 2012-10-09 · 335 KB
Tidewater Smith River site
Source file type Photograph · part 1/1 · 2012-10-09 · 594 KB
Tidewater Smith River site
Source file type Photograph · part 1/1 · 2012-10-09 · 3.2 MB
Tidewater Smith River site
Source file type Photograph · part 1/1 · 2012-10-09 · 3.3 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