Alves Incorporated

Active WDID 1 12I028485 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
McDaniel Slough (as reported by the facility)
Evidence: not confirmed 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
1 waterbody; 0 on the 2026 303(d) list
Proximity only; not a discharge pathway · Nearby waterbodies
Monitoring results Evidence: facility-reported
54 distinct results, 7 reporting years (2019 to 2025)
Most recent sample Feb 17, 2026 · Monitoring
Compliance and enforcement records Evidence: SMARTS record
0 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
40.89534, -124.07634
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
4200 West End Rd, Arcata 95521
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
Alves Incorporated
Primary industry (SIC)
1442-Construction Sand and Gravel
Secondary SIC
4225-General Warehousing and Storage
Tertiary SIC
5093-Scrap and Waste Materials
Application ID
512454
NOI processed
Dec 27, 2019
Last certified
Dec 26, 2019
Facility size
16 Acres

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

Permit history

Storm water applications for this WDID, newest first
ApplicationTypeStatusProcessedTerminatedCertified
512454 IndustrialActiveDec 27, 2019 —Dec 26, 2019

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

Receiving water

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

Evidence: not confirmed Not matchable to a single waterbody

Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.

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 CAR1100005219990617094056259 m not listed0

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.

54 distinct measurements across 3 parameters, most recent sample Feb 17, 2026.

By reporting year

Distinct results by reporting year
Reporting year (July–June)Distinct resultsParametersWith several versionsFirst sampleLast sample
202593 0 Oct 10, 2025Feb 17, 2026
2024123 0 Oct 28, 2024Apr 07, 2025
202363 0 Dec 18, 2023Feb 19, 2024
202263 0 Nov 08, 2022Jan 10, 2023
202193 0 Oct 25, 2021Apr 19, 2022
202063 0 Dec 16, 2020May 25, 2021
201963 0 Mar 24, 2020May 11, 2020

By parameter

Distinct results by parameter
ParameterUnitsMeasurementsBelow detectionFirst sampleLast sampleResults
Oil and Greasemg/L18 17Mar 24, 2020Feb 17, 2026 Results
pHSU18 0Mar 24, 2020Feb 17, 2026 Results
Total Suspended Solids (TSS)mg/L18 0Mar 24, 2020Feb 17, 2026 Results

All results (54 distinct rows)

Reported monitoring results, newest first
Sample dateParameterResultUnitsLocation typeEventMethodReportVersions
Feb 17, 2026 Oil and Grease DNQ 3.2 mg/L Effluent Qualifying Storm Event E1664B 1367266
Feb 17, 2026 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1367266
Feb 17, 2026 Total Suspended Solids (TSS) 40 mg/L Effluent Qualifying Storm Event A2540D 1367266
Dec 16, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1361048
Dec 16, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1361048
Dec 16, 2025 Total Suspended Solids (TSS) 3.3 mg/L Effluent Qualifying Storm Event A2540D 1361048
Oct 10, 2025 Oil and Grease DNQ 1.9 mg/L Effluent Qualifying Storm Event E1664B 1354575
Oct 10, 2025 pH 6.5 SU Effluent Qualifying Storm Event pH_Field 1354575
Oct 10, 2025 Total Suspended Solids (TSS) 33 mg/L Effluent Qualifying Storm Event A2540D 1354575
Apr 07, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1331511
Apr 07, 2025 pH 5 SU Effluent Qualifying Storm Event pH_Field 1331511
Apr 07, 2025 Total Suspended Solids (TSS) 8.2 mg/L Effluent Qualifying Storm Event A2540D 1331511
Jan 31, 2025 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1321899
Jan 31, 2025 pH 6 SU Effluent Qualifying Storm Event pH_Field 1321899
Jan 31, 2025 Total Suspended Solids (TSS) 12 mg/L Effluent Qualifying Storm Event A2540D 1321899
Dec 13, 2024 Oil and Grease DNQ 3.7 mg/L Effluent Qualifying Storm Event E1664B 1317534
Dec 13, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Field 1317534
Dec 13, 2024 Total Suspended Solids (TSS) 16 mg/L Effluent Qualifying Storm Event A2540D 1317534
Oct 28, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1314275
Oct 28, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1314275
Oct 28, 2024 Total Suspended Solids (TSS) 23 mg/L Effluent Qualifying Storm Event A2540D 1314275
Feb 19, 2024 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1280613
Feb 19, 2024 pH 6 SU Effluent Qualifying Storm Event pH_Paper 1280613
Feb 19, 2024 Total Suspended Solids (TSS) 11 mg/L Effluent Qualifying Storm Event A2540D 1280613
Dec 18, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1271138
Dec 18, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Field 1271138
Dec 18, 2023 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1271138
Jan 10, 2023 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1225182
Jan 10, 2023 pH 6 SU Effluent Qualifying Storm Event pH_Field 1225182
Jan 10, 2023 Total Suspended Solids (TSS) 18 mg/L Effluent Qualifying Storm Event A2540D 1225182
Nov 08, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1215859
Nov 08, 2022 pH 6 SU Effluent Qualifying Storm Event pH_Field 1215859
Nov 08, 2022 Total Suspended Solids (TSS) 8.6 mg/L Effluent Qualifying Storm Event A2540D 1215859
Apr 19, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1181801
Apr 19, 2022 pH 6 SU Effluent Qualifying Storm Event pH_Field 1181801
Apr 19, 2022 Total Suspended Solids (TSS) 14 mg/L Effluent Qualifying Storm Event A2540D 1181801
Mar 15, 2022 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1179960
Mar 15, 2022 pH 6 SU Effluent Qualifying Storm Event pH_Field 1179960
Mar 15, 2022 Total Suspended Solids (TSS) 39 mg/L Effluent Qualifying Storm Event A2540D 1179960
Oct 25, 2021 Oil and Grease DNQ 1.7 mg/L Effluent Qualifying Storm Event E1664B 1168272
Oct 25, 2021 pH 6 SU Effluent Qualifying Storm Event pH_Field 1168272
Oct 25, 2021 Total Suspended Solids (TSS) 25 mg/L Effluent Qualifying Storm Event A2540D 1168272
May 25, 2021 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1150831
May 25, 2021 pH 6 SU Effluent Qualifying Storm Event pH_Field 1150831
May 25, 2021 Total Suspended Solids (TSS) 5.6 mg/L Effluent Qualifying Storm Event A2540D 1150831
Dec 16, 2020 Oil and Grease 6.2 mg/L Effluent Qualifying Storm Event E1664B 1138574
Dec 16, 2020 pH 7 SU Effluent Qualifying Storm Event pH_Field 1138574
Dec 16, 2020 Total Suspended Solids (TSS) 160 mg/L Effluent Qualifying Storm Event A2540D 1138574
May 11, 2020 Oil and Grease ND mg/L Effluent Qualifying Storm Event E1664B 1108473
May 11, 2020 pH 4.6 SU Effluent Qualifying Storm Event pH_Field 1108473

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
Inspections0inspections, not findings — Oct 21, 2026
Annual reports7certified reports (contents not shown) 2019 – 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 (7 records, newest first)
Compliance and enforcement records, newest first
DateRecordIDType or purposeStatus as publishedDetail
Jul 11, 2026 Annual reports 1340529 Annual report 2025 —
Jun 18, 2025 Annual reports 1299674 Annual report 2024 —
Jul 15, 2024 Annual reports 1249040 Annual report 2023 —
Jun 28, 2023 Annual reports 1195340 Annual report 2022 —
Jun 30, 2022 Annual reports 1118954 Annual report 2021 —
Jul 09, 2021 Annual reports 1110516 Annual report 2020 —
Jun 03, 2020 Annual reports 1094330 Annual report 2019 —

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.