Industrial stormwater facility
WDID 1 12I023801 · Notice of Intent · Bridgeville, Humboldt
SIC 1411 · Dimension Stone · 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 (4) Aluminum, Benthic Community Effects, Sediment, Sedimentation/Siltation
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 |
|---|---|---|---|---|---|
| 2026-04-10 | Sample Point 2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-10 | Sample Point 2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-04-10 | Sample Point 2 | pH | 7.2 | SU | Qualifying Storm Event |
| 2026-04-10 | Sample Point 2 | Total Suspended Solids (TSS) | 51 | mg/L | Qualifying Storm Event |
| 2026-03-26 | Sample Point 2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-03-26 | Sample Point 2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2026-03-26 | Sample Point 2 | pH | 7.5 | SU | Qualifying Storm Event |
| 2026-03-26 | Sample Point 2 | Total Suspended Solids (TSS) | 1.5 | mg/L | Qualifying Storm Event |
| 2025-05-12 | Sample Point 2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .042 | mg/L | Qualifying Storm Event |
| 2025-05-12 | Sample Point 2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-05-12 | Sample Point 2 | pH | 7.3 | SU | Qualifying Storm Event |
| 2025-05-12 | Sample Point 2 | Total Suspended Solids (TSS) | 2.6 | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 1 | Nitrate/Nitrite (Nitrite + Nitrate as N) | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 1 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 1 | pH | 7.6 | SU | Qualifying Storm Event |
| 2025-03-27 | Sample Point 1 | Total Suspended Solids (TSS) | 3.4 | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .46 | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 2 | Oil and Grease | ND —(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2025-03-27 | Sample Point 2 | pH | 7.8 | SU | Qualifying Storm Event |
| 2025-03-27 | Sample Point 2 | Total Suspended Solids (TSS) | 35 | mg/L | Qualifying Storm Event |
| 2024-12-16 | Sample Point 1 | Nitrate/Nitrite (Nitrite + Nitrate as N) | 1.232 | mg/L | Qualifying Storm Event |
| 2024-12-16 | Sample Point 1 | Oil and Grease | 14 | mg/L | Qualifying Storm Event |
| 2024-12-16 | Sample Point 1 | pH | 7.4 | SU | Qualifying Storm Event |
| 2024-12-16 | Sample Point 1 | Total Suspended Solids (TSS) | 39 | mg/L | Qualifying Storm Event |
| 2024-12-16 | Sample Point 2 | Nitrate/Nitrite (Nitrite + Nitrate as N) | .05 | 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 | 0 mg/L as N | 0.68 mg/L as N | At or below NALAnnual average of 2 eligible result(s) compared with the annual NAL.0× threshold | 2 eligible2 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. | 2 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. | 2 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. | 2 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.
114 substantive of 167 indexed attachments
MFC Bridgeville SWPPP
Source file type SWPPP · part 1/1 · 2016-04-05 · 21.9 MB
Submitted report pdf
Source file type Submitted Report PDF · 2026-07-15 · 819 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-05-05 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-04-08 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-07-14 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-07-14 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-05-15 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-01-27 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2025-01-27 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-07-12 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-05-22 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-04-19 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-01-10 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-01-10 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-14 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-14 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-14 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-06-01 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-07-14 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-05-17 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-05-17 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-04-04 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-01-17 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-01-17 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-12-03 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-07-22 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-07-15 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-24 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-02 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-02 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-07-15 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-05-26 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-05-26 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-01-16 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-12-23 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-07-12 · 1000 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-04-02 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-04-02 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-01-21 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-01-04 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-07-13 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-03-23 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-03-23 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-01-10 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-12-21 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-11-02 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-07-10 · 11 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-07-05 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-06-13 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-06-13 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2016-06-10 · 820 KB
Submitted report pdf
Source file type Submitted Report PDF · 2016-05-25 · 408 KB
Level 1 ERA Site Evaluation Summary
Source file type Level 1 Technical Report · part 1/1 · 2017-11-02 · 8.2 MB
5/15/2026 Response to April 1, 2026 Notice of Violation
Source file type Enforcement Action Response · part 1/1 · 2026-05-20 · 847 KB
Response to April 1, 2026 Notice of Violation
Source file type Enforcement Action Response · part 1/1 · 2026-05-20 · 7.0 MB
Notice of Violation and Transmittal of 2/11/26 Inspection Report of Lower Quarry access road
Source file type Enforcement Document · part 1/1 · 2026-05-20 · 3.4 MB
5/27/2026- Focused Inspection Report, Bridgeville Quarry Upper and Lower Quarry Access road
Source file type Final Inspection Report · part 1/1 · 2026-06-24 · 8.3 MB
February 11, 2026 Inspection 1-24-00141 HUM “Ash Flat” THP
Source file type Final Inspection Report · part 1/1 · 2026-05-20 · 2.4 MB
Bridgeville Lab Results 4-10-2026
Source file type Laboratory Results · 2026-05-05 · 495 KB
Bridgeville Lab Results 03-26-2026
Source file type Laboratory Results · 2026-04-08 · 712 KB
Bridgeville Lab Results 5-12-25
Source file type Laboratory Results · 2025-07-14 · 253 KB
Bridgeville Lab Results 3-27-2025
Source file type Laboratory Results · 2025-05-14 · 632 KB
Bridgeville Lab Results 12-16-2024
Source file type Laboratory Results · 2025-01-27 · 433 KB
Bridgeville Lab Results 12-12-2024
Source file type Laboratory Results · 2025-01-27 · 703 KB
Bridgeville Lab Results 4-26-2024
Source file type Laboratory Results · 2024-05-07 · 386 KB
Bridgeville Lab Results 3-22-2024
Source file type Laboratory Results · 2024-04-19 · 389 KB
Bridgeville Lab Results 12-18-2023
Source file type Laboratory Results · 2024-01-10 · 1.0 MB
Bridgeville Lab Results 12-4-2023
Source file type Laboratory Results · 2024-01-10 · 446 KB
Bridgeville Lab Results 4-18-2023
Source file type Laboratory Results · 2023-05-29 · 329 KB
Trinidad Sampling 1-11-2023
Source file type Laboratory Results · 2023-05-29 · 351 KB
Bridgeville Lab Results 12-1-2022
Source file type Laboratory Results · 2023-01-03 · 347 KB
Bridgeville Lab Results 4-11-2022
Source file type Laboratory Results · 2022-05-17 · 289 KB
Bridgeville Lab Results 3-15-2022
Source file type Laboratory Results · 2022-05-17 · 285 KB
Bridgeville Lab Results 3-15-2022
Source file type Laboratory Results · 2022-04-04 · 285 KB
Bridgeville Lab Results 12-20-2021
Source file type Laboratory Results · 2022-01-17 · 276 KB
Bridgeville Lab Results 12-13-2021
Source file type Laboratory Results · 2022-01-17 · 384 KB
Bridgeville Sampling Lab Results 10-25-2021
Source file type Laboratory Results · 2021-12-01 · 369 KB
Bridgeville Lab Results 6-24-2021
Source file type Laboratory Results · 2021-07-22 · 421 KB
2-11-2021 Lab Results
Source file type Laboratory Results · 2021-02-24 · 233 KB
12-30-2020 Lab Results
Source file type Laboratory Results · 2021-01-27 · 284 KB
12-11-2020 Lab Results
Source file type Laboratory Results · 2021-01-27 · 284 KB
Lab Results 5-12-2020
Source file type Laboratory Results · 2020-05-26 · 227 KB
Lab Results 4-22-2020
Source file type Laboratory Results · 2020-05-26 · 262 KB
12-19-2019 Laboratory Results
Source file type Laboratory Results · 2020-01-16 · 222 KB
Lab Results 11-26-2019
Source file type Laboratory Results · 2019-12-23 · 230 KB
Lab Results 3-6-2019
Source file type Laboratory Results · part 1/1 · 2019-03-27 · 350 KB
Lab Results 2-13-2019
Source file type Laboratory Results · part 1/1 · 2019-03-11 · 343 KB
Lab Results
Source file type Laboratory Results · part 1/1 · 2019-01-04 · 344 KB
11-27-2018_Lab Results
Source file type Laboratory Results · part 1/1 · 2018-12-20 · 357 KB
03.15.18 Sampling Bridgeville
Source file type Laboratory Results · part 1/1 · 2018-03-23 · 339 KB
3.01.18 Sampling Bridgeville
Source file type Laboratory Results · part 1/1 · 2018-03-23 · 344 KB
December Sample Results
Source file type Laboratory Results · part 1/1 · 2018-01-10 · 367 KB
Nov. Lab Results
Source file type Laboratory Results · part 1/1 · 2017-12-21 · 361 KB
5/16/17 Lab Results
Source file type Laboratory Results · part 1/1 · 2017-06-13 · 330 KB
04/12/2017 Lab Results
Source file type Laboratory Results · part 1/1 · 2017-05-18 · 335 KB
12/15/2016 Sample Results
Source file type Laboratory Results · part 1/1 · 2017-01-25 · 609 KB
MFC Bridgeville Stormwater 160324
Source file type Laboratory Results · part 1/1 · 2016-05-25 · 211 KB
MFC Bridgeville Stormwater 160128
Source file type Laboratory Results · part 1/1 · 2016-05-25 · 201 KB
MFC Bridgeville Stormwater 151218
Source file type Laboratory Results · part 1/1 · 2016-05-25 · 205 KB
MFC Bridgeville Stormwater 151102
Source file type Laboratory Results · part 1/1 · 2016-05-25 · 505 KB
MFC Bridgeville Stormwater 160324
Source file type Laboratory Results · part 1/1 · 2016-04-20 · 211 KB
Bridgeville Stormwater 160128
Source file type Laboratory Results · part 1/1 · 2016-02-12 · 201 KB
MFC Bridgeville 151218
Source file type Laboratory Results · part 1/1 · 2016-01-19 · 205 KB
Bridgeville Stormwater 151102
Source file type Laboratory Results · part 1/1 · 2015-11-17 · 505 KB
SWPPP Amendment No. 2
Source file type Other · 2025-03-25 · 4.6 MB
Site Map
Source file type Other · 2022-07-13 · 7.7 MB
Site Map
Source file type Supporting Documentation · 2020-01-10 · 7.7 MB
Inspection Report
Source file type Photograph · 2019-12-23 · 5.0 MB
Inspection report
Source file type Photograph · 2019-09-03 · 6.9 MB
SWPPP Amendment No.1
Source file type Other · 2019-08-09 · 3.3 MB
Sampling Log
Source file type Supporting Documentation · part 1/1 · 2019-01-04 · 370 KB
QISP Contact
Source file type Other · part 1/1 · 2017-09-26 · 40 KB
May 2017 Sampling Event Report
Source file type Supporting Documentation · part 1/1 · 2017-06-13 · 1.6 MB
141001_PRK_ef_IGPThankYouBridgeville Quarry.pdf
Source file type Cover/Explanation Letter · part 1/1 · 2014-10-21 · 442 KB
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. 3 enforcement-typed documents are on file in the document inventory above.
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