Industrial stormwater facility
WDID 1 23I010063 · Notice of Intent · Laytonville, Mendocino
SIC 5015 · Motor Vehicle Parts, Used · 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 (9) Aluminum, Anatoxin-A, Benthic Community Effects, Microcystins, Sediment, Sedimentation/Siltation +3 more
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 |
|---|---|---|---|---|---|
| 2024-01-10 | SP-1 | Aluminum | 2.7 | mg/L | Qualifying Storm Event |
| 2024-01-10 | SP-1 | Iron | 3.5 | mg/L | Qualifying Storm Event |
| 2024-01-10 | SP-1 | Lead | .0072 | mg/L | Qualifying Storm Event |
| 2024-01-10 | SP-1 | Oil and Grease | ND 0(non-detect / est.) | mg/L | Qualifying Storm Event |
| 2024-01-10 | SP-1 | pH | 6 | SU | Qualifying Storm Event |
| 2024-01-10 | SP-1 | Total Suspended Solids (TSS) | 51 | mg/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1-Dichloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1-Dichloroethylene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1-Dichloropropene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1,1-Trichloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1,1,2-Tetrachloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1,2-Trichloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,1,2,2-Tetrachloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2-Dibromo-3-Chloropropane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2-Dibromoethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2-Dichlorobenzene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2-Dichloroethane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2-Dichloropropane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2,3-Trichlorobenzene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2,3-Trichloropropane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2,4-Trichlorobenzene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,2,4-Trimethylbenzene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,3-Dichlorobenzene | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,3-Dichloropropane | ND 0(non-detect / est.) | ug/L | Qualifying Storm Event |
| 2023-03-28 | SP-1 | 1,3,5-Trimethylbenzene | ND 0(non-detect / est.) | ug/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 |
|---|---|---|---|---|---|---|
Aluminum, Total aluminum_total | Annual | 2.7 mg/L | 0.75 mg/L | Above NALAnnual average of 1 eligible result(s) compared with the annual NAL.3.6× threshold | 1 eligible | 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) |
Iron, Total iron_total | Annual | 3.5 mg/L | 1 mg/L | Above NALAnnual average of 1 eligible result(s) compared with the annual NAL.3.5× threshold | 1 eligible | 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) |
Lead, Total lead_total | Annual | 0.007 mg/L | 0.262 mg/L | At or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0.03× threshold | 1 eligible | 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. | 1 eligible1 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. | 1 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. | 1 eligible | count of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year |
YDOS-derived overlap
Parameters where this facility has an NAL exceedance in at least one reporting year and the geographically associated waterbody carries a 303(d) listing for the same pollutant.
AluminumMonitoringAbove NAL303(d) impairmentEel River HU, South Fork HA
6 reporting years above the annual NAL, most recently RY 2023 · 1 303(d) listing · association: derived receiving water (medium confidence)
Overlap is informational co-occurrence between a derived NAL comparison and an official 303(d) listing. It is not evidence that this facility caused or contributed to the impairment.
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.
111 substantive of 159 indexed attachments
Laytonville Auto Wreckers SWPPP_v3
Source file type SWPPP · 2024-07-14 · 1010 KB
Laytonville Auto Wreckers SWPPP_v2
Source file type SWPPP · 2024-07-14 · 1.1 MB
Laytonville Auto Wreckers SWPPP_v3
Source file type SWPPP · 2024-04-03 · 1010 KB
Laytonville Auto Wreckers SWPPP_v2
Source file type SWPPP · 2024-04-03 · 1.1 MB
Laytonville Auto Wreckers SWPPP_v1
Source file type SWPPP · 2021-10-11 · 377 KB
Laytonville Auto Wreckers Site Map
Source file type Facility/Site Map · 2021-10-07 · 47 KB
SWPP Observation 01.01.2020 to 06.30.2020
Source file type SWPPP · part 2/2 · 2020-07-12 · 6.2 MB
SWPP Observation 07.01.2019 to 1231.2019
Source file type SWPPP · 2020-07-12 · 9.0 MB
Site Map 09.19.16
Source file type Facility/Site Map · part 1/1 · 2016-10-14 · 53 KB
SWPPP
Source file type SWPPP · part 1/1 · 2016-02-12 · 3.9 MB
Site Map 02.04.16
Source file type Facility/Site Map · part 1/1 · 2016-02-04 · 52 KB
Storm Map
Source file type Facility/Site Map · part 1/1 · 2015-02-15 · 401 KB
Storm Map
Source file type Facility/Site Map · part 1/1 · 2015-02-15 · 401 KB
Submitted report pdf
Source file type Submitted Report PDF · 2026-07-14 · 1.0 MB
Submitted report pdf
Source file type Submitted Report PDF · 2025-07-13 · 1003 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-07-14 · 1004 KB
Submitted report pdf
Source file type Submitted Report PDF · 2024-02-28 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-07-08 · 1003 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-05-05 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-05-05 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-02-07 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2023-02-07 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-07-13 · 1003 KB
Submitted report pdf
Source file type Submitted Report PDF · 2022-07-12 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-12-15 · 415 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-12-15 · 416 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-07-14 · 1003 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-05-10 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-26 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2021-02-26 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-07-12 · 1004 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-06-24 · 104 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-05-19 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-05-19 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-01-28 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2020-01-28 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-12-17 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-07-15 · 999 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-03-06 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-03-06 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2019-03-06 · 105 KB
Submitted report pdf
Source file type Submitted Report PDF · 2018-07-14 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-08-01 · 911 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-05-21 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-01-06 · 406 KB
Submitted report pdf
Source file type Submitted Report PDF · 2017-01-01 · 405 KB
Submitted report pdf
Source file type Submitted Report PDF · 2016-07-10 · 911 KB
2020-2021 Level 2 Technical Report (Al)
Source file type Level 2 Technical Report · 2021-06-22 · 357 KB
2019-2020 Level 2 Technical Report (Fe)
Source file type Level 2 Technical Report · 2020-06-23 · 346 KB
2019-2020 Level 2 ERA Action Plan (Al)
Source file type Level 2 ERA Action Plan · 2019-12-16 · 161 KB
Level 2 ERA Action Plan 2018-2019
Source file type Level 2 ERA Action Plan · part 1/1 · 2018-12-18 · 279 KB
Level 1 ERA Report 2018-2019
Source file type Level 1 Technical Report · part 1/1 · 2018-12-18 · 140 KB
Level 1 ERA Report
Source file type Level 1 Technical Report · part 1/1 · 2016-12-28 · 124 KB
NNC Letter
Source file type Enforcement Document · 2015-12-24 · 1.0 MB
NNC Letter
Source file type Enforcement Document · 2015-11-10 · 1.0 MB
Monthly visual inspection forms
Source file type Monthly Visual Inspection Form · 2025-07-13 · 3.1 MB
Monthly Dry Day Observation Forms
Source file type Monthly Visual Inspection Form · part 1/1 · 2024-07-14 · 2.4 MB
Lab.Results.01.10.24
Source file type Laboratory Results · 2024-02-06 · 736 KB
EDF
Source file type EDF · 2024-02-06 · 463 B
Sampling Event 03.28.23
Source file type Laboratory Results · 2023-05-01 · 1.1 MB
EDF
Source file type EDF · 2023-05-01 · 1 KB
Sampling Event 03.19.23
Source file type Laboratory Results · 2023-05-01 · 1.1 MB
EDF
Source file type EDF · 2023-05-01 · 1 KB
Sampling Event 12.27.22
Source file type Laboratory Results · 2023-02-07 · 1.2 MB
EDF
Source file type EDF · 2023-02-07 · 1 KB
Sampling Event 12.08.22
Source file type Laboratory Results · 2023-02-07 · 1.2 MB
EDF
Source file type EDF · 2023-02-07 · 1 KB
EDF
Source file type EDF · 2022-05-23 · 1 KB
Sampling Event 04.19.22
Source file type Laboratory Results · 2022-05-13 · 1.4 MB
Sampling Event 11.09.21
Source file type Laboratory Results · 2021-12-10 · 741 KB
EDF
Source file type EDF · 2021-12-10 · 1 KB
Sampling Event 11.01.21
Source file type Laboratory Results · 2021-12-02 · 1.0 MB
EDF
Source file type EDF · 2021-12-02 · 740 B
EDF
Source file type EDF · 2021-12-02 · 548 B
Sampling Event 02.11.21
Source file type Laboratory Results · 2021-03-08 · 687 KB
EDF
Source file type EDF · 2021-03-08 · 387 B
Sampling Event 02.01.21
Source file type Laboratory Results · 2021-02-25 · 696 KB
EDF
Source file type EDF · 2021-02-25 · 521 B
Sampling Event 01.06.21
Source file type Laboratory Results · 2021-02-03 · 689 KB
EDF
Source file type EDF · 2021-02-03 · 515 B
Sampling Event 05.17.20
Source file type Laboratory Results · 2020-06-03 · 683 KB
Sampling Event 03.24.20
Source file type Laboratory Results · 2020-04-10 · 697 KB
Sampling Event 01.13.20
Source file type Laboratory Results · 2020-01-30 · 688 KB
sampling event 12.19.19
Source file type Laboratory Results · 2020-01-14 · 704 KB
Sampling Event 12.06.19
Source file type Laboratory Results · 2020-01-06 · 684 KB
Data Results 01.16.19
Source file type Laboratory Results · part 1/1 · 2019-02-11 · 690 KB
Data Results 01.08.19
Source file type Laboratory Results · part 1/1 · 2019-01-25 · 685 KB
Data Results 12.18.18
Source file type Laboratory Results · part 1/1 · 2019-01-14 · 667 KB
Lab Results 1/24/18
Source file type Laboratory Results · part 1/1 · 2018-02-14 · 546 KB
Lab Results 01/18/18
Source file type Laboratory Results · part 1/1 · 2018-02-07 · 544 KB
Sampling Event 03.24.17
Source file type Laboratory Results · part 1/1 · 2017-04-12 · 632 KB
EDF
Source file type EDF · 2017-04-12 · 413 B
Sampling Event 01.10.17
Source file type Laboratory Results · part 1/1 · 2017-01-31 · 632 KB
EDF
Source file type EDF · 2017-01-31 · 864 B
Sampling Event 12.15.16
Source file type Laboratory Results · part 1/1 · 2017-01-09 · 631 KB
EDF
Source file type EDF · 2017-01-09 · 882 B
Sampling Event 10.27.16
Source file type Laboratory Results · part 1/1 · 2016-11-23 · 631 KB
EDF
Source file type EDF · 2016-11-23 · 877 B
Sampling Event 03.11.16
Source file type Laboratory Results · part 1/1 · 2016-04-13 · 626 KB
EDF
Source file type EDF · 2016-04-13 · 855 B
Lab Results 01.29.16
Source file type Laboratory Results · part 1/1 · 2016-02-19 · 614 KB
Sampling Event 12.10.15
Source file type Laboratory Results · part 1/1 · 2016-02-03 · 613 KB
EDF
Source file type EDF · 2016-02-01 · 882 B
Storm water sample 1
Source file type Laboratory Results · part 1/1 · 2016-01-25 · 438 KB
Precipitation event log
Source file type Other · 2025-07-13 · 239 KB
Percipitation Event Log
Source file type Other · part 1/1 · 2024-07-14 · 340 KB
Laytonville Auto Wreckers - Level 2 Technical Report (Fe, Al) Revison 2023-2024
Source file type Other · 2024-04-03 · 668 KB
Exceedance Letter
Source file type Cover/Explanation Letter · 2019-12-12 · 737 KB
Yearly haz totals
Source file type Supporting Documentation · part 1/1 · 2016-01-25 · 418 KB
141001_PRK_ef_IGPThankYouLaytonville Auto Wreckers.pdf
Source file type Cover/Explanation Letter · part 1/1 · 2014-10-21 · 442 KB
1 23I010063.pdf
Source file type Binary Large Object · part 1/1 · 2009-05-26 · 80 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. 2 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