The State of Hawaii Department of Transportation (HDOT), Highways Division, Oahu District continues to implement its proactive comprehensive Storm Water Management Program (SWMP). This initiative is being taken to comply with our National Pollutant Discharge Elimination System (NPDES) Permit for the Oahu municipal separate storm sewer system (MS4) since it services a population greater than 250,000 and is therefore subject to permitting requirements under the NPDES Program for storm water discharges. The program is designed to reduce, to the maximum extent practicable, the amount of storm water containing pollutants from entering and ultimately discharging from HDOT Highways’ MS4 into the streams, rivers and ocean we all enjoy.

In accordance with the requirements of the HDOT Highways MS4 NPDES Permit No. HI S000001, Part D.1, the following SWMP Plan has been developed. The plan outlines HDOT Highways’ program to address storm water pollution associated with operating its drainage network and facilities on Oahu.

All files are available in Adobe PDF format. You may browse the table below and access each chapter individually or click the following button to download the entire plan (without appendices, 31.1 MB).

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Plan

Chapter Title Size
SWMPP Table of Contents 595 KB
Executive Summary 93 KB
1 Overview of Storm Water Management Program Plan 723 KB
2 Public Education and Outreach Program 835 KB
3 Illicit Discharge Detection and Elimination Program 3.6 MB
4 Construction Site Runoff Control Program 4.0 MB
5 Post-Construction Storm Water Management in New Development and Redevelopment Program 1.9 MB
6 Pollution Prevention/Good Housekeeping Debris Control BMPs Program 3.1 MB
7 Pollution Prevention/Good Housekeeping Chemical Applications Best Management Practices BMPs Program 1.7 MB
8 Pollution Prevention/Good Housekeeping Erosion Control BMPs Program 4.6 MB
9 Pollution Prevention/Good Housekeeping Maintenance Activities BMPs Program 2.6 MB
10 Industrial and Commercial Activities Discharge Management Program 2.4 MB
11 Baseyard Facilities Program 2.2 MB
12 Monitoring Program 2.6 MB
13 Total Maximum Daily Load Program 1.2 MB
14 Reporting Program 786 KB

Appendices

Chapter Title Size
A.1 DOT-HWYS National Pollutant Discharge Elimination System (NPDES) Permit No. HI S000001 409 KB
A.2 Storm Water Management Program Organizational Chart 3.8 MB
A.3 Program Effectiveness Strategy 1.8 MB
A.4 Memorandum of Understanding with State of Hawaii Department of Health 217 KB
A.5 Memorandum of Understanding with City and County of Honolulu, Department of Environmental Services and Department of Facility Maintenance 320 KB
B.1 Public Education and Outreach Plan 1.7 MB
B.2 SWMPP Informational Meeting Participant List 77 KB
C.1 Application for a Private Storm Drain Connection and/or Discharge Permit to the State of Hawaii Highways Division Storm Drain System 19 KB
C.2 Permit for Connection to the State Highways Drainage System 22 KB
C.3 Outfall Field Screening Plan 1.5 MB
C.4 IDDE Complaint MS4 Site Investigation Sheet 60 KB
C.5 Spill Response Documentation Form 71 KB
D.1 Construction Best Management Practices Field Manual 12.0 MB
D.2 Storm Water Pollution Prevention Plan (SWMPPP) Review Checklist 120 KB
D.3 Site-Specific Best Management Practices (SSBMP) Plan/Storm Water Pollution Prevention Plan (SWMPPP) Review Checklist 105 KB
D.4 Permit to Perform Work Upon State Highways 291 KB
D.5 Contractor’s Certification of NPDES Compliance 165 KB
D.6 Written Best Management Practices (BMP) Plan 214 KB
D.7 Permit to Discharge Into the State Highways Drainage System 16 KB
D.8 Independent (Third Party) Inspection Checklist 13 KB
D.9 Independent (Third Party) Inspection Checklist – Short Form 12 KB
D.10 Site-Specific Best Management Practice/Storm Water Pollution Prevention Inspection and Maintenance Report 75 KB
D.11 Enforcement Response Plan 1.4 MB
E.1 Storm Water Post-Construction Best Management Practices Manual 6.6 MB
F.1 Group A, B, C Street Sweeping Segments 137 KB
F.2 Priority Schedules for Storm Drain Structure Inspections 96 KB
F.3 Action Plan for Retrofitting Structural BMPs 6.9 MB
F.4 Trash Reduction Plan 3.2 MB
G.1 Chemical Applications Authorized Use List 100 KB
G.2 Maintenance Baseyard Storm Water Training Topics 144 KB
H.1 Implementation Schedule for Significant Erosional Areas 57 KB
H.2 Action Plan to Address Erosional Outfalls 3.3 MB
I.1 Maintenance Activities BMPs Field Manual 2.4 MB
J.1 Prioritized Area Plan for Industrial and Commercial Facility and Activity Inspections 1.1 MB
J.2 Industrial and Commercial MS4 Site Investigation Sheet 72 KB
K.1 SWPCP Inspection Corrective Action Timeframes 90 KB
L.1 Total Maximum Daily Load Implementation and Monitoring Plan, Ala Wai Canal Watershed Waste Load Allocation 2.5 MB
L.2 Total Maximum Daily Load Implementation and Monitoring Plan, Kawa Stream Watershed Waste Load Allocation 2.6 MB
L.3 Total Maximum Daily Load Implementation and Monitoring Plan, Waimanalo Stream Watershed Waste Load Allocation 2.5 MB
L.4 Total Maximum Daily Load Implementation and Monitoring Plan, Kapaa Stream Watershed Waste Load Allocation 2.9 MB
L.5 Total Maximum Daily Load Implementation and Monitoring Plan, Kaneohe Stream Watershed Waste Load Allocation 2.7 MB
L.6 Total Maximum Daily Load Implementation and Monitoring Plan, Waikele Watershed Waste Load Allocation 1.1 MB