Mad RIver Lumber LLC

Active WDID 1 12I027258 Arcata, Humboldt County Region 1 · North Coast

At a glance

Permit Evidence: SMARTS record
Active Industrial
Notice of Intent (WDID code I) · Permits and applications
Location Evidence: facility-reported
Arcata, Humboldt County
Region 1 · North Coast · Location · Statewide map
Receiving water
Not reported
No identification to check. 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
628 distinct results, 9 reporting years (2017 to 2025)
Most recent sample Apr 01, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
2 inspections · 0 violation records · 0 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
40.88573, -124.080863
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
BOX 1134, Arcata 95518
Regional Water Board
1 — North Coast

HUC12 watershed Evidence: spatial

  • Humboldt Bay HUC12 180101020605

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
Mad RIver Lumber LLC
Primary industry (SIC)
2421-Sawmills and Planing Mills, General
Secondary SIC
2411-Logging
Application ID
488923
NOI processed
Jul 18, 2017
Last certified
Jul 13, 2017
Facility size
9.4 Acres
Impervious area
21 %

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
488923 IndustrialActiveJul 18, 2017 —Jul 13, 2017

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

Receiving water

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

No receiving-water text was reported for this permit.

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
Eureka Plain HU, Mcdaniel Slough CAR1100005219990617094056315 m not listed0
Eureka Plain HU, Jolly Giant Creek CAR1100005119990617151229904 m listed1

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.

628 distinct measurements across 7 parameters, most recent sample Apr 01, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
2025726 0 Oct 24, 2025Apr 01, 2026
2024546 0 Nov 01, 2024Mar 12, 2025
2023726 0 Nov 14, 2023Apr 29, 2024
2022906 0 Nov 30, 2022Apr 10, 2023
2021726 0 Nov 04, 2021May 05, 2022
2020726 0 Dec 13, 2020May 26, 2021
2019726 0 Dec 13, 2019Apr 04, 2020
2018666 0 Nov 21, 2018Apr 05, 2019
2017587 0 Dec 20, 2017Mar 22, 2018

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L105 63Dec 20, 2017Apr 01, 2026 Results
pHSU105 0Dec 20, 2017Apr 01, 2026 Results
Tannin and Ligninmg/L105 0Dec 20, 2017Apr 01, 2026 Results
Total Suspended Solids (TSS)mg/L105 1Dec 20, 2017Apr 01, 2026 Results
Chemical Oxygen Demand (COD)mg/L103 0Dec 20, 2017Apr 01, 2026 Results
Zinc, Totalmg/L101 0Dec 20, 2017Apr 01, 2026 Results
Phenols, Chlorinatedug/L4 4Dec 20, 2017Mar 22, 2018 Results

All results (628 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Apr 01, 2026 Chemical Oxygen Demand (COD) 61 mg/L Effluent Qualifying Storm Event H8000 1371682
Apr 01, 2026 Chemical Oxygen Demand (COD) 100 mg/L Effluent Qualifying Storm Event H8000 1371682
Apr 01, 2026 Chemical Oxygen Demand (COD) 47 mg/L Effluent Qualifying Storm Event H8000 1371682
Apr 01, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1371682
Apr 01, 2026 Oil and Grease 2 mg/L Effluent Qualifying Storm Event E1664B 1371682
Apr 01, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1371682
Apr 01, 2026 pH 7.22 SU Effluent Qualifying Storm Event pH_Field 1371682
Apr 01, 2026 pH 7.36 SU Effluent Qualifying Storm Event pH_Field 1371682
Apr 01, 2026 pH 6.87 SU Effluent Qualifying Storm Event pH_Field 1371682
Apr 01, 2026 Tannin and Lignin 4.4 mg/L Effluent Qualifying Storm Event 1371682
Apr 01, 2026 Tannin and Lignin 16 mg/L Effluent Qualifying Storm Event 1371682
Apr 01, 2026 Tannin and Lignin 9.7 mg/L Effluent Qualifying Storm Event 1371682
Apr 01, 2026 Total Suspended Solids (TSS) 24 mg/L Effluent Qualifying Storm Event A2540D 1371682
Apr 01, 2026 Total Suspended Solids (TSS) 27 mg/L Effluent Qualifying Storm Event A2540D 1371682
Apr 01, 2026 Total Suspended Solids (TSS) 8.6 mg/L Effluent Qualifying Storm Event A2540D 1371682
Apr 01, 2026 Zinc, Total .094 mg/L Effluent Qualifying Storm Event E200.7 1371682
Apr 01, 2026 Zinc, Total .014 mg/L Effluent Qualifying Storm Event E200.7 1371682
Apr 01, 2026 Zinc, Total .27 mg/L Effluent Qualifying Storm Event E200.7 1371682
Feb 08, 2026 Chemical Oxygen Demand (COD) 54 mg/L Effluent Qualifying Storm Event H8000 1366441
Feb 08, 2026 Chemical Oxygen Demand (COD) 96 mg/L Effluent Qualifying Storm Event H8000 1366441
Feb 08, 2026 Chemical Oxygen Demand (COD) 32 mg/L Effluent Qualifying Storm Event H8000 1366441
Feb 08, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1366441
Feb 08, 2026 Oil and Grease 2.8 mg/L Effluent Qualifying Storm Event E1664B 1366441
Feb 08, 2026 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1366441
Feb 08, 2026 pH 7.51 SU Effluent Qualifying Storm Event pH_Field 1366441
Feb 08, 2026 pH 7.42 SU Effluent Qualifying Storm Event pH_Field 1366441
Feb 08, 2026 pH 7.17 SU Effluent Qualifying Storm Event pH_Field 1366441
Feb 08, 2026 Tannin and Lignin 6 mg/L Effluent Qualifying Storm Event 1366441
Feb 08, 2026 Tannin and Lignin 10 mg/L Effluent Qualifying Storm Event 1366441
Feb 08, 2026 Tannin and Lignin 7.3 mg/L Effluent Qualifying Storm Event 1366441
Feb 08, 2026 Total Suspended Solids (TSS) 25 mg/L Effluent Qualifying Storm Event A2540D 1366441
Feb 08, 2026 Total Suspended Solids (TSS) 36 mg/L Effluent Qualifying Storm Event A2540D 1366441
Feb 08, 2026 Total Suspended Solids (TSS) 17 mg/L Effluent Qualifying Storm Event A2540D 1366441
Feb 08, 2026 Zinc, Total .052 mg/L Effluent Qualifying Storm Event E200.7 1366441
Feb 08, 2026 Zinc, Total .049 mg/L Effluent Qualifying Storm Event E200.7 1366441
Feb 08, 2026 Zinc, Total .11 mg/L Effluent Qualifying Storm Event E200.7 1366441
Nov 13, 2025 Chemical Oxygen Demand (COD) 56 mg/L Effluent Qualifying Storm Event H8000 1359282
Nov 13, 2025 Chemical Oxygen Demand (COD) 110 mg/L Effluent Qualifying Storm Event H8000 1359282
Nov 13, 2025 Chemical Oxygen Demand (COD) 39 mg/L Effluent Qualifying Storm Event H8000 1359282
Nov 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1359282
Nov 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1359282
Nov 13, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1359282
Nov 13, 2025 pH 7.19 SU Effluent Qualifying Storm Event pH_Field 1359282
Nov 13, 2025 pH 7.4 SU Effluent Qualifying Storm Event pH_Field 1359282
Nov 13, 2025 pH 7.26 SU Effluent Qualifying Storm Event pH_Field 1359282
Nov 13, 2025 Tannin and Lignin 4.9 mg/L Effluent Qualifying Storm Event 1359282
Nov 13, 2025 Tannin and Lignin 18 mg/L Effluent Qualifying Storm Event 1359282
Nov 13, 2025 Tannin and Lignin 5.7 mg/L Effluent Qualifying Storm Event 1359282
Nov 13, 2025 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1359282
Nov 13, 2025 Total Suspended Solids (TSS) 7.5 mg/L Effluent Qualifying Storm Event A2540D 1359282

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
Violations0 0 Violation · 0 Potential (preliminary) · 0 Dismissed — Oct 21, 2026
Enforcement actions0 0 issued · 0 draft · 0 withdrawn, rescinded or superseded — Oct 21, 2026
Inspections2inspections, not findings Jul 11, 2019 – Apr 07, 2026 Oct 21, 2026 All inspections
Annual reports9certified reports (contents not shown) 2017 – 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 (11 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 20, 2026 Annual reports 1339595 Annual report 2025 —
Apr 07, 2026 Inspections 2071158 B Type compliance FinalizedAdditional Info Required
Jun 30, 2025 Annual reports 1298662 Annual report 2024 —
Jun 24, 2024 Annual reports 1247959 Annual report 2023 —
Jul 21, 2023 Annual reports 1194190 Annual report 2022 —
Jul 14, 2022 Annual reports 1118111 Annual report 2021 —
Jul 15, 2021 Annual reports 1066371 Annual report 2020 —
Jun 29, 2020 Annual reports 983513 Annual report 2019 —
Jul 11, 2019 Inspections 2043958 A Type compliance —Follow-up Inspection Needed
Jun 26, 2019 Annual reports 959885 Annual report 2018 —
Jun 28, 2018 Annual reports 949538 Annual report 2017 —

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.