← Facilities

Industrial stormwater facility

Hambro Forest Products

WDID 1 08I004046 · Notice of Intent · Crescent City, Del Norte

SIC 4212 · Local Trucking Without Storage · Regional Board 1 - North Coast Region

Official record — State Water Resources Control Board, Industrial General Permit

Hydrologic

Geographic context

Official facility coordinate plotted against the associated Final 2026 Integrated Report impaired-water geometry.

Loading map…
  • Facility location (official coordinate)
  • Associated impaired-water geometry (Final 2026 Integrated Report)
  • YDOS-derived geographic context
  • Loading associated 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.

Official facility point
41.75366, -124.17764
HUC12 subwatershed
Elk Creek-Frontal Pacific Ocean
HUC12 code
180101010504
Impaired-water associations (derived)
1

Official

Facility record

Facility name
Hambro Forest Products
WDID
1 08I004046
Application type
Notice of Intent
City
Crescent City
County
Del Norte
ZIP
95531
Primary SIC code
4212
SIC description
Local Trucking Without Storage
Date active
1992-04-03
Regional Water Board
Regional Board 1 - North Coast Region

303(d) context

Associated impaired waters

Grouped by derived geographic association class.

Derived

Same impaired-water subwatershed

1 waterbodies
Smith River HU, Martin Ranch Northwest, minor unnamed coastal stream

River & Stream · Integrated Report category 5 · TMDL required

Listed pollutants / stressors (1) Oxygen, Dissolved

Distance

Confidence low

Fact sheet

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.

TMDL requirements

Water Board-stated TMDL waste load allocations applied to this industrial permit in SMARTS.

Official record — SMARTS TMDL dataset, State Water Board

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

SMARTS monitoring

Self-reported industrial stormwater sampling results as submitted by the discharger to SMARTS.

Official record — SMARTS parameter data, State Water Board
Reported results
95
Sample events
19
Distinct parameters
5
Reporting years
2016 – 2025
First sample
2016-10-17
Latest sample
2025-12-30
Source regional dataset
Region 1 - North Coast
Source retrieved
Aug 21, 2026

Official SMARTS public reports

Parameters reported

Reported results over time

Loading reported results…

Most recent reported results

Latest 25 of 95
Sample dateLocationParameterResultUnitsEvent
2025-12-30CL-1LeadND (non-detect / est.)mg/LQualifying Storm Event
2025-12-30CL-1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-12-30CL-1pH6.1SUQualifying Storm Event
2025-12-30CL-1Total Suspended Solids (TSS)ND (non-detect / est.)mg/LQualifying Storm Event
2025-12-30CL-1Zinc.0043mg/LQualifying Storm Event
2025-04-08CL-1Lead.00047mg/LQualifying Storm Event
2025-04-08CL-1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-04-08CL-1pH6.6SUQualifying Storm Event
2025-04-08CL-1Total Suspended Solids (TSS)2mg/LQualifying Storm Event
2025-04-08CL-1Zinc.0111mg/LQualifying Storm Event
2025-02-17CL-1Lead.00082mg/LQualifying Storm Event
2025-02-17CL-1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2025-02-17CL-1pH6.5SUQualifying Storm Event
2025-02-17CL-1Total Suspended Solids (TSS)2mg/LQualifying Storm Event
2025-02-17CL-1Zinc.011mg/LQualifying Storm Event
2024-11-15CL-1LeadND (non-detect / est.)mg/LQualifying Storm Event
2024-11-15CL-1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2024-11-15CL-1pH6.3SUQualifying Storm Event
2024-11-15CL-1Total Suspended Solids (TSS)1.8mg/LQualifying Storm Event
2024-11-15CL-1Zinc.0089mg/LQualifying Storm Event
2024-01-16CL-1LeadND (non-detect / est.)mg/LQualifying Storm Event
2024-01-16CL-1Oil and GreaseND (non-detect / est.)mg/LQualifying Storm Event
2024-01-16CL-1pH6.2SUQualifying Storm Event
2024-01-16CL-1Total Suspended Solids (TSS)3.4mg/LQualifying Storm Event
2024-01-16CL-1Zinc.005mg/LQualifying 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

Numeric Action Level comparison

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).

Derived
Reporting years evaluated
10
Years with an NAL exceedance
0
Most recent evaluated year
RY 2025
Ruleset
igp_nal_ruleset_v1 / igp_nal_v1
ParameterNAL typeCalculated valueNALResultSamples usedMethod

Lead, Total

lead_total

Annual0 mg/L0.262 mg/LAt or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0× threshold1 eligible1 non-detect as zeroarithmetic 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 maximum0 samples above25 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligible1 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

pH

ph

Instantaneous maximum0 samples above6 – 9 pH unitsWithin NAL rangeNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligiblecount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Total Suspended Solids (TSS)

tss

Instantaneous maximum0 samples above400 mg/LAt or below NALNo eligible result in this reporting year was outside the instantaneous maximum NAL.1 eligible1 non-detect as zerocount of eligible effluent results outside the instantaneous maximum NAL within the July 1 - June 30 reporting year

Zinc, Total

zinc_total

Annual0.004 mg/L0.26 mg/LAt or below NALAnnual average of 1 eligible result(s) compared with the annual NAL.0.02× threshold1 eligiblearithmetic 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)

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

Documents on file

Attachment inventory recorded in the State Water Board SMARTS public attachment workflow for this permit.

Source inventory — SMARTS public attachments. Documents are operator-submitted.

Metadata indicators

Derived
Substantive documents on file
75
SWPPP versions on file
3
Most recent SWPPP attached
2017-10-27
Most recent substantive document
2026-07-27
Annual report years on file
2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Apparent year gaps in annual reports
None apparent
ERA-related documents
0
Enforcement / inspection / laboratory documents
2 / 0 / 19

Document 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.

75 substantive of 108 indexed attachments

SWPPP

4 documents

revised SWPPP

Source file type SWPPP · part 1/1 · 2017-10-27 · 1.3 MB

Revised_Hambro_SWPPP

Source file type SWPPP · part 1/1 · 2017-01-27 · 1.2 MB

Site Map 2015

Source file type Facility/Site Map · part 1/1 · 2015-11-18 · 3.6 MB

SWPPP & Site Map 2015

Source file type SWPPP · part 1/1 · 2015-06-30 · 1.5 MB

Annual report

30 documents

Submitted report pdf

Source file type Submitted Report PDF · 2026-07-27 · 819 KB

Submitted report pdf

Source file type Submitted Report PDF · 2026-01-26 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2025-07-14 · 999 KB

Submitted report pdf

Source file type Submitted Report PDF · 2025-05-14 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2025-04-03 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2024-12-11 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2024-07-11 · 999 KB

Submitted report pdf

Source file type Submitted Report PDF · 2024-01-30 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2023-07-31 · 1000 KB

Submitted report pdf

Source file type Submitted Report PDF · 2023-07-14 · 1000 KB

Submitted report pdf

Source file type Submitted Report PDF · 2023-01-24 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2022-07-06 · 1000 KB

Submitted report pdf

Source file type Submitted Report PDF · 2022-05-09 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2021-11-23 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2021-07-13 · 1000 KB

Submitted report pdf

Source file type Submitted Report PDF · 2021-03-01 · 105 KB

Submitted report pdf

Source file type Submitted Report PDF · 2020-07-06 · 1000 KB

Submitted report pdf

Source file type Submitted Report PDF · 2020-04-29 · 105 KB

Submitted report pdf

Source file type Submitted Report PDF · 2020-01-17 · 105 KB

Submitted report pdf

Source file type Submitted Report PDF · 2019-07-15 · 105 KB

Submitted report pdf

Source file type Submitted Report PDF · 2019-07-15 · 105 KB

Submitted report pdf

Source file type Submitted Report PDF · 2018-07-11 · 11 KB

Submitted report pdf

Source file type Submitted Report PDF · 2018-03-05 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2017-08-02 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2017-08-02 · 405 KB

Submitted report pdf

Source file type Submitted Report PDF · 2017-08-02 · 406 KB

Submitted report pdf

Source file type Submitted Report PDF · 2017-07-11 · 11 KB

Submitted report pdf

Source file type Submitted Report PDF · 2016-06-21 · 405 KB

Submitted report pdf

Source file type Submitted Report PDF · 2015-07-10 · 247 KB

Submitted Report PDF

Source file type Submitted Report PDF · 2014-07-18 · 246 KB

Enforcement

2 documents

IGP Annual Report 2025-2026 NOV Letter

Source file type Enforcement Document · 2026-07-27 · 121 KB

NNC Letter

Source file type Enforcement Document · 2015-11-10 · 1.0 MB

Laboratory / ad hoc

19 documents

Lab Results 2512528

Source file type Laboratory Results · 2026-01-26 · 351 KB

lab results 5/13/2025

Source file type Laboratory Results · 2025-05-14 · 694 KB

Lab Results 3/31/2025

Source file type Laboratory Results · 2025-04-03 · 459 KB

Lab Results 12/3/2024

Source file type Laboratory Results · 2024-12-11 · 1.8 MB

Lab Results 01/25/2024

Source file type Laboratory Results · 2024-01-29 · 614 KB

Lab Results 121322

Source file type Laboratory Results · 2023-01-13 · 365 KB

Lab Results 050522

Source file type Laboratory Results · 2022-05-09 · 374 KB

Lab Results 10252021

Source file type Laboratory Results · 2021-11-18 · 290 KB

lab Results 121820

Source file type Laboratory Results · 2021-01-05 · 387 KB

Lab Results 04082020

Source file type Laboratory Results · 2020-04-29 · 244 KB

Lab results 011520

Source file type Laboratory Results · 2020-01-17 · 231 KB

1902489Sampledate022819

Source file type Laboratory Results · 2019-05-03 · 428 KB

Lab Report

Source file type Laboratory Results · part 1/1 · 2019-02-25 · 1.3 MB

Lab Report

Source file type Laboratory Results · part 1/1 · 2018-03-02 · 324 KB

Lab Report 111617

Source file type Laboratory Results · part 1/1 · 2017-12-04 · 325 KB

Lab Results Sample Date 122916

Source file type Laboratory Results · part 1/1 · 2017-07-11 · 342 KB

Lab Results Sample Date 101716

Source file type Laboratory Results · part 1/1 · 2017-07-11 · 410 KB

Lab Report 06092017

Source file type Laboratory Results · part 1/1 · 2017-06-26 · 311 KB

Lab Report 4/27/2017

Source file type Laboratory Results · part 1/1 · 2017-05-08 · 310 KB

Other substantive

20 documents

Swarm Attachment

Source file type Swarm Attachment · 2017-08-01 · 235 KB

Revised NOI

Source file type Other · part 1/1 · 2017-07-20 · 1.2 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2017-01-10 · 3.0 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2017-01-10 · 1.5 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2017-01-10 · 2.7 MB

141001_PRK_ef_IGPThankYou1Sample_HambroForestProductsInc.pdf

Source file type Cover/Explanation Letter · part 1/1 · 2014-10-28 · 443 KB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 3.2 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 2.3 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 1.5 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 1.7 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 3.1 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 2.7 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 3.6 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 3.4 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 2.3 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-08-05 · 1.9 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-03-20 · 2.5 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-03-20 · 1.5 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-03-20 · 1.7 MB

Hambro Crescent City

Source file type Photograph · part 1/1 · 2014-03-20 · 1.6 MB

Enforcement

Enforcement records

Enforcement actions as recorded by the State Water Board for this permit, in the source system's own terminology.

Source record — SMARTS enforcement data

Structured enforcement records are not yet connected for this site. 2 enforcement-typed documents are on file in the document inventory above.

Reporting

Reporting and ERA records

Annual report and Exceedance Response Action information as stated by the source system, distinguished from what is inferred from document metadata.

Source record — SMARTS reporting data

Annual report documents on file

Derived
Reporting years identified
2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Apparent year gaps
None apparent

Years 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

Recent source changes

New or changed source records this platform detected for this permit, newest first.

Derived

No source change has been detected for this permit yet. Change detection begins from the date each dataset was first indexed.

Provenance

Source & provenance

Source agency
California State Water Resources Control Board
Source dataset
Industrial General Permit — permitted facilities (statewide GIS layer)
WDID
1 08I004046
Source feature ID
9144
Application type
Notice of Intent
Regional board derivation
WDID region prefix
Geometry status
valid
Last successful facility import
Sep 16, 2026, 10:48 PM UTC

Official IGP permitted facilities feature layer