USACE NWP_Verif_AlaeBr POH-2024-00181_20260707.pdf

DEPARTMENT OF THE ARMY

HONOLULU DISTRICT, U.S. ARMY CORPS OF ENGINEERS

230 OTAKE STREET, CEPOH-RO

FORT SHAFTER, HAWAII 96858-5440

July 7, 2026

SUBJECT: Nationwide Permit Verification for HDOT, Bridge Scour Repair, Na’alae Gulch, Kula, Island of Maui, Hawaii, Department of the Army File No. POH-2024-00181

Henry Kennedy Hawaii Department of Transportation (HDOT) 869 Punchbowl Street Honolulu, HI 96813

Dear Mr. Kennedy:

The Honolulu District, U.S. Army Corps of Engineers (Corps), Regulatory Branch has completed review of your Pre-Construction Notification dated March 18, 2026, requesting authorization for the proposed bridge rehabilitation located at the intersection of Kekaulike Avenue Bridge and Na’alae Gulch in Kula, Island of Maui, Hawaii (20.742249°, -156.326095°). Please reference Department of the Army (DA) file number POH-2026-00057 in any future correspondence related to this permit.

This Nationwide Permit (NWP) verification letter is being issued pursuant to Section

404 of the Clean Water Act for the discharge of dredged and/or fill material into waters of the U.S. You are authorized to conduct the following activities:

- The discharge of up to 30 cubic yards (cy) of partially grouted riprap and 40 cy of riprap into 270 square feet (sf) below the ordinary high water mark (OHWM) of Na’alae Gulch for the purpose of repairing the existing Kekaulike Avenue Bridge.

A temporary construction area impacting 1,800 sf below the OHWM of Na’alae Gulch will be created using Best Management Practices (BMP) per the contractor’s means and methods as required by the “HDOT Construction BMP Handbook” and “An Integrated Storm Water Management Approach and a Summary of Clear Water Diversion and Isolation Best Management Practices for Use in the State of Hawaii”.

Based upon the information and plans you provided, we hereby verify that the work described above, which would be performed in accordance with the enclosed plan (Enclosure 1), dated March 18, 2026, is authorized by NWP 3 (Maintenance). The full text of NWP 3 and its associated Regional and General Conditions can be accessed at:

https://www.poh.usace.army.mil/Missions/Regulatory/Permit-Types/Nationwide-Permits.

You must comply with all terms and conditions associated with NWP 3.

Verification of your project under this NWP is valid until March 15, 2031, unless this NWP is modified, reissued, or revoked prior to that date. If you commence or are under contract to commence this activity before the date that the NWPs are modified or

- 2 -revoked, you will have twelve (12) months from the date of the modification or revocation of the NWPs to complete the activity under the present terms and conditions of these NWPs. It is incumbent upon you to remain informed of changes to the NWPs.

If the Corps modifies, reissues, or revokes any NWP at an earlier date, we will issue a public notice announcing the changes. Failure to comply with all terms and conditions of this NWP verification invalidates this authorization and could result in a violation of the Clean Water Act and/or Rivers and Harbors Act and subsequent enforcement action.

This authorization does not relieve you of the responsibility to obtain any other federal, state, and/or local authorizations required by law.

Your project complies with the requirements of the Clean Water Act, Section 401

Blanket Water Quality Certification (WQC) WQC1100 issued for this Nationwide Permit by the State of Hawaii Department of Health, Clean Water Branch. You are responsible for complying with the attached General Conditions of this WQC (Enclosure 2).

Your project complies with the requirements of the Coastal Zone Management Consistency Concurrence for this NWP issued by the State of Hawaii Department of Business, Economic Development and Tourism, Office of Planning and Sustainable Development during the NWP reissuance process in 2026.

Finally, General Condition 30 requires a signed certification be submitted to this office upon completion of work. Therefore, please sign, date and return the enclosed Compliance Certification form (Enclosure 3) within 30 days of completion of work to CEPOH-RO@usace.army.mil.

Thank you for your cooperation with the Honolulu District Regulatory Program. Should you have any questions related to this authorization, please contact me at 808-835-4303 or via e-mail at CEPOH-RO@usace.army.mil, referencing the project number POH-2026-00057 in the email subject. Please see our website for more information, located at https://www.poh.usace.army.mil/Missions/Regulatory/.

Sincerely, David Rojek Regulatory Specialist

- 3 -

Enclosures

Electronic cc:

State of Hawaii Department of Health, Clean Water Branch Reef Migita reef.migita@doh.hawaii.gov Robert Phan robert.phan@doh.hawaii.gov CleanWaterBranch@doh.hawaii.gov State of Hawaii Office of Planning, Coastal Zone Management Program Debra.L.Mendes@hawaii.gov Todd Nishioka (WSP USA), Todd.Nishioka@wsp.com

S e is m ic R et ro fit

H a le a ka la

H ig hw a y R ou te

, W a ia le G ul ch

A la e

N a al a e

G ul ch a nd

P u le h u G ul ch

P o ha ku o ka la

B ri d ge s

F e de ra l A id

P ro je ct

N o.

S

T P

-0

(0

A la e

B ri dg e

POH-2024-00181, Na'alae Gulch Page 1 of 4, March 18, 2026

To Pukatani -:

I E edge of shoulder �! edge of pavement

I

Construct Cone. Corbet, Tie Stab, Anchor Beam, and Install Soil Nails and Backf/11 Behind Abutment with LCC, See SA2.I

To Pukatani

Construct Cone. Corbel, Tie Stab, Anchor Beam, and I nsta/1 Soll Nalls and Backfill Behind Abutment with LCC, See SA2.2 l.£Q£.!jJ);_

(]} Integral Abutment !E! Expansion Bearil1!} !FJ Fixed Bearil1!}

0 Work within the general footprint of the Gulch

1-_,I �! _, -

�1• To Keokea

�1

FED. ROAD

STATE

FEDERAL AID ASCAL SHEET TOTAL

49'-3'' ' 50'-0'' 49'-3" DIST.NO. PROJ. NO. YEAR NO. SHEETS

�1· HAWAII HAW. XX-XX-XXXX 2023 00

Bolster Exist. Cone. � j Upstream

I � � Diaphragms, Pour a;, I'- "' � Cone. Creep Block, it � ,:_ t ·15 See SA32 �! edge of bridge, ;;::

ct I �, r Bolster Exist. Cone.

Diaphragms, Pour Cone. Creep Block, See SA3.3

I

Construct Cone. Corbel, Tie ...., Slab, Anchor Beam and il

V ' Install Soil Nails and Backfill

<t, Behind Abutment with LCC, � See SA2.3

:r---------, ,--------7 �orgr,:a�: , --------, ,--------, ,--------, , 11 II II 11 II II I

J L ________ JL ________ JL ________ J L ________ JL ________ JL ________ J ----71-------=fl ::�oFroa�7rn=----7 i�-nrd�: i--------7 i--------7 i--------7 j ====� �========�71 1 '�========� �========� �====�=�']' r�========� �========� �========� 11 ,: , 11 11 11ft of girder 1: , 11 11 11 1, ____ J L. ________ J� R-==---J L. ________ J L.rt._Qf_Qi[.(£801 p ______ J l_ ________ J L_ ________ J edge of bridge top of bridge deck

:I :a:, -� I Cl' �1 pier cap below

Downstream

ALA£ BRIDGE PLAN

Scale: 1/8" = l'-0" approx. exist.

ground

"'I �' aila::' �I

I

ALA£ BRIDGE DOWNSTREAM LONGITUDINAL SECTION

Scale, 1/8'' = l'-0"

"'I cl, �I :,, �I �'

I

�o0� e, To Keokea

Construct Cone. Corbel, Tie Slab, Anchor Beam, and Install Soil Nails and Backf/11 Behind Abutment with LCC, See SA2.4

ALAE BRIDGE

PLAN AND LONG. SECTION

,J MNU 8R[DGE$ SE[S/QC RET{KJFIT Nft. l«EO NKL Pphakyqkala f«fntA/d Prp(a No, xx-xx-xxxx Scale, As Noted Date, Sept. 2023

SHEET No. SAJJ OF / SHEETS

Page 2 of 4, March 18, 2026

I

I I I I I I I I I I I I I I I

Source: Alae (Naalae Gulch) Bridge Inspection Report Prepared by: Nagamine Okawa Engineers Inc.

Date: 6/04/2024

CONCRETE

BRIDGE PARAPET,

TYPICAL

I I

I I

-------n---------n--------

I ' I -p�;zo NaalaeGulchtobe _[1___ ru��'-.c.� lT

_....,_.,,..__J n i f : I w I w I . , I -' I

I

I

I

1�: -·�·······U·········U······· �

" �:,��",,";:."::.'� •• • •• JL ......•. -: f/5 � �1 1-+-------n---------n--------0,- ----- R1prap and -n--------"' - ,---n---------n-------+-f 1-;: � 1 � z-1-+-- _I_ - - -- ----l 1 - SPAN 3 (S3) - -I+--- - -- - - ,;,: ➔I-- - Geotextile Fabric to -++--- -- - -- _;:-HI ,UlC1ttol�- --++-- SPAt 1 (S1) -+ c - -- -- -_I_-+-+� ;?-I - - � :S l +-l-------u _________ u ________ �7 1

----- fill the Scour pocket. _u ________ �-I _________ u ___ -i ____ __u _______ �-+ l � � l i !: r-t-------n---------n------- -�1�n:---------n---------n--- ----�·:n I

--------n----r---iT------ -i-r : i � :

: ±=l=======u=========u======== 1 ' 1-========u= =======u=== ==== 1 ' ========u====L===__u=======l=±: :

I

I

I

/ CS3 AND/OR CS4 AND SCOUR DEFECT TABLE

CONCRETE

DIAPHRAGM BEAM

BELOW, TYPICAL �i \

DEFECT DEFECT TYPE SIZE LOCATION PHOTO

NO. NO.

0 UNDERMINING 4'-0" (L) X 5" (H) X 6" (0) A1 FTG@ O' FROM A1 STARTING AT 11 DOWNSTREAM ENO

CRM PROTECTION 1'-0" (L) X 1'-7" (H)X 1'-0" (0) S1 P1 @ O' FR P1 AT UPSTREAM END 15, 16 UNDERMINED

IN v111"\1•1•L..1.. IN -'lr/"\1 l Al ur"' C\Ll"\IVI

0 SCOUR POCKET 17'-6" (L) X13'-5" (W) X SIDE OF PIER 1. NOTE: VERTICAL 25, 26 6'-9"(H) SCOUR DIMENSION MEASURED FROM

TOP OF CRM PROTECTION

Up to 60CY offi/1

DOWNSTREAM UPSTREAM

PIER 1 CRM PROTECTION

SCOUR DIMENSIONS TABLE

STATION "H" "D" PHOTO (FEET) (HEIGHT) (DEPTH)

0 1·-r 1'-0" 1 10" 9"

2.5 1'-0" 1'-0" 6 15, 16

14.5

PIER COLUMN,

TYPICAL

C3 I STA 0+14.5

CRM WALL

PROTECTION

I I I I I \k:'j1 --J.

I I ,--, I I �---,-1--"=,;J_-ft

I r; '� � 1 I I I J_ _L L ____ J

1-1 __ _17 , - 7

I I I I L ____ J L ___ J

®SCOUR DETAIL@P1 CRM PROTECTION

B ridge Name: ALAE (NAALAE GULCH) BRIDGE S tat e of H awai i

Str ucture No. 009003770500058 Scale: NTS Route No .. 00377 D e Pa rt m e n t of Tr a n s po rt at i o n , Date of I nspection: 06/04/2024 TMK: 2-2-006 Mi le Post: 8.57 M a u i D i s tri c t

NOTE

WINGWALL

FTG

A1 FTG

A1 FTG@DNSTRM END

SCOUR DIMENSIONS TABLE

STATION "H" ·o·

(FEET) (HEIGHT) (DEPTH)

-7 o·

-6 4" -4 1'-0" -2 1'-7" 0 2'-0" 2" 2 2'-0" 4" 4 2'-0" 5" 5 2'-0" 4" 6 2'-7" 8 2'-7"

10 2'-7" 12 2'-8" 14 2'-2"

PHOTO

11, 12

UPSTREAM DOWNSTREAM

A1

FTG

PLAN -A1 @DNSTRM END

UPSTREAM DOWNSTREAM

STA 14+0

' A1 I WINGWALL

FTG FTG

ELEVATION -A1@ DNSTRM END

®SCOUR DETAIL@A1 FTG DNSTRM END

Page 3 of 4, March 18, 2026

TO KEOKEA

SOUNDINGS DATUM

REFERENCE POINT

ELEVATION= 0.00

METAL

GUARDRAIL,

TYPICAL

ill}Q]

_l _____ _.__7

- - _I_ - - ____ _J

Partially Grouted Riprap, Class IV (36'?

Remove loose material and backfill scour hole with Class II, Ill, or IV Riprap

Bridge Name: ALAE (NAALAE GULCH) BRIDGE

SPAN1�

OHWM

...... - ,, -53.59

CONCRETE

BRIDGE PARAPET

-PIER1

(P1)

-43'"49

�e

8[§fil

S t a t e of H awaii Structure No. : 009003770500058 Scale: NTS Route No.: 00377 D e Pa r t m e n t of Tr a n s p o r t a t i o n , Date of Inspection : 06/04/2024 TMK: 2-2-006 Mile Post: 8.57 M aui Dis t r i c t

PW404 or PW700

SPAN 2�

REINFORCED

CONCRETE GIRDER

i:mm.

•2870 -31.64

-3284 -35.38

AS-BUILT INFORMATION DOES

NOT MATCH EXISTING

CONDITIONS. THEREFORE,

BRIDGE FOUNDATION ELEVATIONS

CANNOT BE DETERMINED.

-PIER 2

(P2)

SPAN 3�

IJMII

-----�9.:1

8Tiru

1S2s

TO PUKALANI

i:TIID

ABUTMENT 2

(A2) (PUKALANI)

L __ L---7

L ___ _

Source: Alae (Naalae Gulch) Bridge Inspection Report Prepared by: Nagamine Okawa Engineers Inc.

Date: 6/04/2024

KEY

� ELEVATION IN FEET06 / 2024

o oo ELEVATION IN FEET01 / 2023

Page 4 of 4, March 18, 2026

STATE OF HAWAIʻI

DEPARTMENT OF HEALTH

KA ʻOIHANA OLAKINO

P.O. BOX 3378

HONOLULU, HAWAIʻI 96801-3378

WQC1100.FNL.25

December 5, 2025

Via e-mail sara.w.longan@usace.army.mil only

Ms. Sara W. Longan Regional Regulatory Chief U.S. Department of the Army U.S. Army Corps of Engineers, Honolulu District Fort Shafter, Hawaii 96858

Dear Ms. Longan:

Subject: Blanket Section 401 Water Quality Certification (WQC) for Certain 2026 Department of the Army (DA) Nationwide Permits (NWP) and Activities All Islands, State of Hawaii File No. WQC1100

Purpose. This letter is a blanket Section 401 WQC (Blanket Certification) and sets forth applicable qualifications and activity-specific conditions to certain NWPs and activities, as described below. This Blanket Certification may be utilized by any applicant that is seeking work authorization verification from the U.S. Army Corps of Engineers (USACE), Honolulu District of the Pacific Ocean Division (POH).

This Blanket Certification supersedes and replaces WQC1092.FNL.20 issued November 20, 2020 (WQC1092) when the USACE issues and implements the 2026 NWPs for a specific project. For the avoidance of doubt:

1. Requirements and conditions set forth in WQC1092 which are not set forth in this Blanket Certification shall no longer be applicable;

2. Activities covered under WQC1092 shall be subject to this Blanket Certification, including requirements and conditions different from or in addition to WQC1092;

and

3. Pending applications, including those currently under review by USACE POH or the Department of Health (DOH), shall be subject to this Blanket Certification.

JOSH GREEN, M.D.

GOVERNOR OF HAWAIʻI

KE KIAʻĀINA O KA MOKUʻĀINA ʻO HAWAIʻI

KENNETH S. FINK, MD, MGA, MPH

DIRECTOR OF HEALTH

KA LUNA HOʻOKELE

In reply, please refer to:

File:

Ms. Sara W. Longan WQC1100.FNL.25 December 5, 2025

Overview. The DA has published a list of NWPs and applicable general conditions that attach to those NWPs.1 Certain NWPs may require a Section 401 WQC from the State of Hawaii. The DOH has the authority to issue a Blanket Certification and may qualify or condition the Blanket Certification. The conditions in this Blanket Certification become additional conditions to the NWPs. The qualifications would set forth the applicability of the Blanket Certification to a NWP or other described activity.

The DOH reviewed the NWP and General Conditions published in the Federal Register:

Final Rules and the additional comments submitted by USACE POH. The DOH believes that when all requirements and conditions contained in this Blanket Certification are fully complied with, there is a reasonable assurance that the activities will be conducted in a manner which will not violate the applicable State water quality requirements and will comply with the applicable provisions of the CWA, Sections 301, 302, 303, 306, and 307.

The NWPs and activities in Item 2.a below do not require a Section 401 WQC. The NWPs and activities in Item 2.b below are covered under this Blanket Certification. The DOH has determined that projects authorized by the USACE POH for the NWPs and activities in Item 2.b below, subject to the requirements of the General Conditions in Item 3 below, will not cause adverse environmental impacts or effects; are in the public interest; and represent the optimum balance between economic development and environmental quality.

1. Term of this Blanket Certification

a. This Blanket Certification is effective on March 15, 2026.

b. This Blanket Certification will expire at midnight, March 14, 2031.

c. This Blanket Certification’s coverage to a certain project is administratively extended beyond midnight, March 14, 2031, when the USACE POH extends the project authorization/verification.

1 The DA NWP authorizes activities under 1) Section 404 of the Clean Water Act (CWA), 2) Section 10 of the

Rivers and Harbors Act of 1899 (RHA), and/or 3) a Letter of Permission, and was published on June 18, 2025, in the

Federal Register, Volume 90, Number 116 (Federal Register).

2. Coverage of this Blanket Certification

a. The NWPs and activities listed below do not require a Section 401 WQC.

• NWP 1 – Aids to Navigation

• NWP 8 – Oil and Gas Structures on the Outer Continental Shelf

• Projects in response to a public emergency proclaimed by the President of the United States or Governor of Hawaii where HRS Chapter 342D has been suspended.

• Emergency projects as determined by the Director of Health.

• Projects granted an exemption under Act 048 of 2017 (temporary exemption of certain bridge rehabilitation projects).

• Projects involving structures over a waterbody where debris and other pollutants associated with the installation, construction, and operation do not enter the waterbody.

• Projects involving directional drilling under a waterbody where entry and exit pits are located on land and all slurry/spoils/runoff is contained on land.

• Projects to install in State waters temporary Best Management Practices (BMPs) consisting of inert material, excluding any material used to divert or dam stream flow.

• Projects to improve or modify permitted existing offshore moorings installed prior to October 4, 2017, for the Department of Land and Natural Resources, Division of Boating and Ocean Recreation.

• Activities exempt under CWA, Section 404(f)(1).

• Bridge inspection activities.

• Coral transplant activities with oversight by the National Oceanic and Atmospheric Administration.

• Events where visible debris from fireworks is collected afterwards.

• Events where lanterns and rubber duckies are collected afterwards.

• Events where ashes from funeral ceremonies are dispersed 3 miles away from shore.

• Comprehensive Environmental Response, Compensation, and Liability Act actions with oversight from the DOH Hazard Evaluation and Emergency Response (HEER) Office and/or EPA.

• DOH HEER response actions.

• After-The-Fact applications for USACE POH enforcement actions2.

2 DOH has decided not to process After-The-Fact applications so the USACE POH can proceed with their enforcement action.

b. The NWPs and activities listed below are hereby granted coverage under this Blanket Certification in the State of Hawaii if the applicant of the activity/discharge complies with the General Conditions (Item 3) and USACE POH provides notification (Item 4). Any person, including any public body, conducting activities authorized by these NWPs and activities that cannot or will not comply with this Blanket Certification must apply for and obtain an individual Section 401 WQC from the DOH Clean Water Branch (CWB).

• NWP 2 – Structures in Artificial Canals

• NWP 3 – Maintenance

• NWP 4 – Fish and Wildlife Harvesting, Enhancement, and Attraction Devices and Activities

• NWP 5 – Scientific Measurement Devices

• NWP 6 – Survey Activities

• NWP 7 – Outfall Structures and Associated Intake Structures

• NWP 9 – Structures in Fleeting and Anchorage Areas

• NWP 10 – Mooring Buoys

• NWP 11 – Temporary Recreational Structures

• NWP 12 – Oil or Natural Gas Pipeline Activities

• NWP 13 – Bank Stabilization

• NWP 14 – Linear Transportation Projects

• NWP 15 – U.S. Coast Guard Approved Bridges

• NWP 16 – Return Water from Upland Contained Disposal Areas

• NWP 17 – Hydropower Projects

• NWP 18 – Minor Discharges

• NWP 19 – Minor Dredging

• NWP 20 – Response Operations for Oil or Hazardous Substances

• NWP 22 – Removal of Vessels

• NWP 23 – Approved Categorical Exclusions

• NWP 25 – Structural Discharges

• NWP 27 – Aquatic Ecosystem Restoration, Establishment, and Enhancement Activities

• NWP 28 – Modifications of Existing Marinas

• NWP 29 – Residential Developments

• NWP 31 – Maintenance of Existing Flood Control Facilities

• NWP 32 – Completed Enforcement Actions

• NWP 33 – Temporary Construction, Access, and Dewatering

• NWP 35 – Maintenance Dredging of Existing Basins

• NWP 36 – Boat Ramps

• NWP 37 – Emergency Watershed Protection and Rehabilitation

• NWP 38 – Cleanup of Hazardous and Toxic Waste

• NWP 39 – Commercial and Institutional Developments

• NWP 40 – Agricultural Activities

• NWP 41 – Reshaping Existing Drainage Ditches

• NWP 42 – Recreational Facilities

• NWP 43 – Stormwater Management Facilities

• NWP 45 – Repair of Uplands Damaged by Discrete Events

• NWP 46 – Discharges in Ditches

• NWP 48 – Commercial Shellfish Mariculture Activities

• NWP 51 – Land-Based Renewable Energy Generation Facilities

• NWP 53 – Removal of Low-Head Dams

• NWP 54 – Living Shorelines

• NWP 55 – Seaweed Mariculture Activities

• NWP 57 – Electric Utility Line and Telecommunications Activities

• NWP 58 – Utility Line Activities for Water and Other Substances

• NWP 59 – Water Reclamation and Reuse Facilities

• NWP A – Activities to Improve Passage of Fish and Other Aquatic Organisms

• Letters of Permission – Section 10 only activities with no discharge of fill material.

• Any activity conducted in compliance with DOH pre-approved Standard Operating Procedures.

c. Limitations on Coverage

This Blanket Certification shall not cover:

(1) Any projects that may result in discharge(s) regulated under CWA, Section 402. [Authorization: HRS § 342D-50(a)]

(2) Any projects that may result in downstream/downdrift post construction impacts to the physical, chemical, and/or biological environment. [Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, 11-54-8]

(3) Any projects involving the concrete lining of any section of natural streambeds or banks.3 [Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, 11-54-8]

3 This type of activity is prohibited as it will result in adverse post construction impacts by eliminating ground water recharge, raising pH, and lowering dissolved oxygen or causing downstream bank erosion.

(4) Any projects involving the removal of dams, impoundments, structures, or sand bars that will result in the downstream/downdrift mobilization of material, sediment, and/or water pollutants.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, HRS Chapter 11-54-8]

(5) Any projects that may result in waste discharges to natural lakes or anchialine pools, as specified in HAR § 11-54-5.2(a), or any State waters. Per HRS § 342D-1, “waste” means sewage, industrial and agricultural matter, and all other liquid, gaseous, or solid substance, including radioactive substance, whether treated or not, which may pollute or tend to pollute the waters of this State. Non-contaminated and suitable dredge and fill material authorized under a 2026 NWP is not considered waste.

(6) Any projects that may result in new sewage discharges or new industrial discharges to estuaries, as specified in HAR §§ 11-54-3(b) and 11-54-5.2(d), or embayments, as specified in HAR §§ 11-54-3(c) and 11-54-6(a). New industrial discharges do not include the repair and/or replacement within the footprint of an existing structure.

(7) Any projects that may result in discharges, such as discharges of wash waters, that are regulated under Section 402 of the CWA.

Wash waters include, but are not limited to, vehicle wash waters, wheel wash waters, concrete truck wash waters, equipment wash waters, container wash waters, and any other type of wash waters.

For any projects involving such discharges to State waters, applicants shall apply for and obtain a National Pollutant Discharge Elimination System (NPDES) permit from the CWB.

[Authorization: HRS § 342D-50(a)]

3. General Conditions

The applicant of the activity/discharge shall:

a. Maintain records at the project site or in the nearby field office demonstrating that all Blanket Certification requirements have been fully complied with. [Authorization: HRS § 342D-55]

b. Report any non-compliance with the conditions of this Blanket Certification to the USACE POH via e-mail to CEPOH-RO@usace.army.mil with the USACE POH project number in the e-mail subject line. This Blanket Certification is a condition of the USACE POH permit.4 Do not report or submit compliance related information to the DOH.

[Authorization: HAR § 11-54-1.1]

c. Ensure that all activities are conducted in a manner that will comply with applicable State water quality requirements as specified in HAR Chapter 11-54.

d. Ensure that the activities will not permanently interfere or become injurious to any designated uses and/or existing uses of the receiving State water.

Any permanent adverse impacts to the designated uses and/or existing uses of the receiving State water are violations of HAR Chapter 11-54.

[Authorization: HAR §§ 11-54-1.1, 11-54-4(a)(4), 11-54-5, 11-54-6, 11-54-7]

e. Ensure, for activities conducted in a stream, ditch, or gulch, that unimpeded flow around the in-water work area is maintained to allow for aquatic animal migration and/or to prevent work site and downstream flooding situations. The unimpeded flow shall be equivalent to a two-year, twenty-four-hour duration storm event and/or the existing flow capacity of the stream, ditch, or gulch. Pumped diversions may be utilized if the stream, ditch, or gulch is dry or there is only standing/ponded water without the existence of living aquatic animals.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, 11-54-8]

4 For any projects that are granted USACE POH coverage under Item 2.c, non-compliance reports from USACE

POH shall be submitted to CWB.

f. Ensure that all material(s) placed or to be placed in State waters are free of waste metal products, organic materials, debris, and any pollutants at toxic or potentially hazardous concentrations to aquatic life. No construction material or construction related materials shall be stockpiled in the aquatic environment or stored or placed in ways that will disturb the aquatic environment. [Authorization: HAR § 11-54-4(c)]

g. Ensure that pollution control measures and BMPs are utilized that prevent water pollutants from leaving the in-water work area authorized by the USACE POH permit.5 Any visual plume emanating from the authorized in-water work area is a violation of State water quality requirements.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-4(a)(3), 11-54-5, 11-54-6, 11-54-7, 11-54-8]

h. Ensure that pollution control measures and BMPs are utilized for all upland project activity to minimize the discharge of water pollutants into State waters, including the designated in-water work area.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-4(a). 11-54-5, 11-54-6, 11-54-7, 11-54-8]

i. Ensure that BMPs utilized for all activities are inert and not sources of pollution themselves. Examples of inappropriate in-water porous material BMPs include but are not limited to: compost filter socks since they are a source of nutrients; and soil berms since soil particles will erode.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-4(a)(4), 11-54-5, 11-54-6, 11-54-7. 11-54-8]

j. Ensure that appropriate catchment/detention devices are used to collect activity/discharge related water pollutants (e.g., construction debris;

airborne particulates; dust; concrete slurry; concrete chips; concrete surface preparation washing effluent; excess water and overflow from boring related activity, horizontal directional drilling slurry; etc.) from localized work areas and to minimize or prevent the release of these water pollutants into State waters, including the in-water work area.

[Authorization: HAR §§ 11-54-1.1, 11-54-4. 11-54-4(a), 11-54-5, 11-54-6, 11-54-7, 11-54-8]

5 For any projects that are granted USACE POH coverage under Item 2.c, the relevant in-water work area is identified in the USACE POH project.

k. Ensure that all areas temporarily impacted, either directly or indirectly, by the project construction activities are fully restored to its pre-construction conditions. [Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-4(a)(4), 11-54-5, 11-54-6, 11-54-7, 11-54-8]

l. Ensure that all construction debris from any portion of the activities (including but not limited to debris caused by hydraulic saws, water jets, or drilling equipment) are contained and prevented from entering or re-entering State waters. All construction debris and sidecast material shall be properly removed from the aquatic environment and disposed of at an upland State and county approved site. Before the start of the activities, a Solid Waste Disclosure Form for Construction Sites shall be submitted to the DOH Solid and Hazardous Waste Branch (SHWB). The disclosure form is available on the e-Permitting Portal at:

https://eha-cloud.doh.hawaii.gov/epermit/.

[Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-4(a)(1), 11-54-4(a)(2), 11-54-5, 11-54-6, 11-54-7, 11-54-8]

m. Adhere to the following guidelines for any projects that involve dredging/excavation activities:

(1) The applicant shall determine if the project site including the authorized in-water work area is listed as a contaminated or potentially contaminated site at the DOH Hazard Evaluation and Emergency Response (HEER) Office System at:

https://eha-cloud.doh.hawaii.gov/iheer#!/home.6 If contaminated soil, sediment, vapor, or groundwater is known to be present at the project site, the applicant shall contact the HEER Office at (808) 586-4249 and submit the Notification of Construction Activities (HEER Office) Form to inform the HEER Office of soil disturbing activities. The form is available on the e-Permitting Portal at: https://eha-cloud.doh.hawaii.gov/epermit/. The applicant shall notify the HEER Office at least 90 days prior to surface and subsurface disturbing activities that may disturb the ground surface at the project site. If the 90-days prior notification is missed, the applicant shall notify the HEER Office as soon as possible to avoid any potential delays regarding the project.

6 The HEER Office is currently updating information for sites and not all sites are displayed on the website. Site document data transfer is ongoing and not all site documents are currently available via the website. To get the complete record for a specific site, a record request form can be filled and submitted to the HEER Office.

(2) The applicant shall contain on land return flow or runoff from upland dredged spoils dewatering site(s)/disposal site(s), including the confined disposal facility (CDF), which shall be contained on land and not allowed to discharge and/or re-enter State waters without first obtaining the required discharge permit from USACE-POH or CWB. Unless authorized by a USACE-POH or NPDES permit, the applicant cannot allow any runoff, return flow, or airborne particulate pollutants from the excavated or dredged material dewatering or stockpiling site, including the CDF, to enter or re-enter State waters.

(3) Warning signs shall be properly deployed and maintained until the portion of the in-water work is completed and the affected area water quality has returned to its initial condition and turbidity control devices have been removed from the waterway.

(4) Sand plug removal may be performed by dredging sand using cranes, excavators, backhoes, bulldozers, tire loaders, and/or track loaders or opening a small breach 2 to 3 feet wide in the sand plug using hand tools or small excavator and/or loader and allowing the flowing stream water to further open the sand plug. Any trash and debris shall be removed first prior to the sand plug removal. Sand pulled for the plug may be side cast on the beach adjacent to the stream mouth. [Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, 11-54-8]

n. Adhere to the following guidelines for any projects that involve moorings:

(1) Avoid locating moorings (including anchors and floats) in sensitive aquatic habitats such as coral reefs, fish spawning areas, and submerged aquatic vegetation (unless location is acceptable to the Department of Land and Natural Resources, Division of Aquatic Resources or the National Oceanic Atmospheric Administration).

(2) Ensure moorings (including anchors and floats) are made of clean, inert material. Treated lumber shall not be used as it may contain compounds that can be released into the water and become toxic to the aquatic environment. [Authorization: HAR § 11-54-4(a)(4)]

(3) Pre-cast and cure concrete anchors, if required, away from State waters prior to use to prevent seepage of potentially toxic substances into the waterbody. [Authorization HAR § 11-54-4(a)(4)]

(4) Locate moorings in depths that allow structures and vessels to remain afloat at the lowest possible water levels and that prevent propellers from disturbing bottom sediments.

(5) Select mooring anchors of an adequate size to secure vessels or structures and prevent the anchor from shifting or dragging along the bottom of the State water.

(6) Size the length of mooring lines, chains, or cables to avoid excess line, chain, or cable accumulation on the bed of the State water.

[Authorization: HAR § 11-54-4(a)(1)]

(7) Ensure native beach material such as logs, sand, gravel, and boulders that are important components of fish habitat are not used as mooring structures and are left in place on the foreshore.

(8) Properly dispose of derelict or unused floats, lines, chains, or cables in accordance with appropriate laws and rules.

[Authorization: HAR §§11-54-4(a)(1), 11-54-4(a)(2)]

(9) Ensure moorings are kept in good repair by regularly inspecting and maintaining the structure. Mooring maintenance must be performed into perpetuity (or until it is properly disposed of) or it will itself become a pollution source. [Authorization: HAR §§ 11-54-1.1, 11-54-4, 11-54-5, 11-54-6, 11-54-7, 11-54-8]

4. USACE POH shall e-mail to the CWB (cleanwaterbranch@doh.hawaii.gov and reef.migita@doh.hawaii.gov) a PDF copy of all issued final verifications. This Blanket Certification coverage shall become valid with respect to an activity only when USACE POH notifies CWB via e-mail of a project authorization/verification and conditions of this Blanket Certification have been incorporated as part of the USCE POH final verification.7

7 Item 4 does not apply to activities that do not require a pre-construction notification.

If you agree with the terms and conditions of this Blanket Certification, please sign and date below; make a copy for your administrative record; and submit this entire letter with your original signature to CWB within fourteen (14) calendar days from your signature date.

If you have any questions, please contact Mr. Reef Migita of the CWB Engineering Section at (808) 586-4309.

Sincerely, for

KENNETH S. FINK, MD, MGA, MPH

Director of Health c: Ms. Jennifer Martin, USACE POH Regulatory Office [via e-mail jennifer.l.martin@usace.army.mil only] USACE POH Regulatory Office [via e-mail CEPOH-RO@usace.army.mil only] DBEDT, Office of Planning and Sustainable Development, CZM Program

[via e-mail dbedt.op.czm@hawaii.gov only] DLNR, Division of Boating and Ocean Recreation [via e-mail dlnr.bd@hawaii.gov only] DLNR, Division of Aquatic Resources [via e-mail dlnr.aquatics@hawaii.gov only] DOH SHWB [via e-mail shwb@doh.hawaii.gov only] DOH HEER [via e-mail heernotify@gmail.com only] DOH DHO (Hawaii, Maui, Kauai)

I AGREE WITH THE TERMS AND CONDITIONS OF THIS LETTER:

MS. SARA W. LONGAN DATE

REGIONAL REGULATORY CHIEF

U.S. ARMY CORPS OF ENGINEERS, HONOLULU DISTRICT

ENCLOSURE 3

US Army Corps of Engineers Honolulu District

BUILDING STRONG®

DEPARTMENT OF THE ARMY PERMIT

COMPLIANCE CERTIFICATION

File Number: POH-2024-00181 Project Title: HDOT, Bridge Scour Repair, Na'alae Gulch, Kula, Island of Maui, HI

PERMIT TYPE: Nationwide Permit 3 (Maintenance)

NAME OF PERMITTEE: Henry Kennedy (HDOT)

DATE OF ISSUANCE: July 7, 2026

DATE OF EXPIRATION: March 15, 2031

The permittee must, upon completion of the activity authorized by this permit and any mitigation required by the permit, sign this certification and return it to the following address or via email within thirty (30) days of completion of work:

U.S. Army Corps of Engineers, Honolulu District Regulatory Office Building 230, CEPOH-RO Fort Shafter, HI 96858-5440 Email: CEPOH-RO@usace.army.mil

Please note that your permitted activity is subject to a compliance inspection by a U.S. Army Corps of Engineers representative. If you fail to comply with the terms and conditions of this permit, you are subject to permit suspension, modification or revocation.

I hereby certify that the work authorized by the above referenced permit has been completed in accordance with the terms and conditions of the said permit, and required mitigation was completed in accordance with the permit conditions.

Signature of Permittee Date