MDE_ESC-SWM Approval Letter 23-SF-0174.pdf

STORMWATER MANAGEMENT AND SEDIMENT & EROSION CONTROL APPROVAL

STATE/FEDERAL PROJECTS

SEDIMENT & STORMWATER PLAN REVIEW DIVISION

MDE NUMBER: 23-SF-0174 APPROVED BY: ____________________________________

Program Manager, Sediment, Stormwater, and Dam Safety EFFECTIVE DATE: May 6, 2024 (Pursuant to Criteria Noted Below)

IN COMPLIANCE WITH: Environment Article, Sections 4-106 and 4-205 Annotated Code of Maryland

APPROVAL IS HEREBY GRANTED: NAVFAC Washington PWD Annapolis - Env. Division ADDRESS: 181 Wainwright Road

Annapolis, MD 21402 Attn: Matthew R. Klimoski

HEREINAFTER KNOWN AS OWNER,

FOR THE PLANS AND SPECIFICATIONS PRESENTED FOR: Contract No. N40080-20-D-0018 AI No. 178627 RM15-0242; Repair Utility Support Structure at College Creek FAC#269 (King George Street) Naval Academy- Anne Arundel County

PREPARED BY: Burns & McDonnell This APPROVAL is granted subject to the following conditions:

1. This Approval shall become null and void if the construction authorized herein has not been completed within three (3) years from the granting of this Approval, except that these limits may be extended at the discretion of the Department when requested by the owner or authorized agent.

2. This Approval is subject to all laws and regulations now in effect and may be revoked if it is subsequently determined that this authorization violates other laws of the State. Construction shall comply with approved terms.

3. The location and dimensions of all sediment control structures and stormwater management facilities, as well as grading, excavation, and filling shall be in accordance with plans approved by the Department of the Environment/ Water and Science Administration (MDE/WSA). The owner or authorized agent shall obtain written approval from the MDE/WSA for any plan modifications or changes. A copy of the approved plan with any approved modifications and this Approval shall be available at the construction site for reference during the construction period.

4. Off-site borrow or waste sites require local county and Soil Conservation District approvals if they are located on private property or MDE/WSA approval if on State or federal property. Local approval numbers shall be furnished to the MDE/WSA Inspector.

5. The Owner or his authorized agent shall notify the MDE/WSA Compliance Program at (410) 537-3510, at least seven (7) days prior to initiation of the project and five (5) days after work ends.

6. This project has an earth disturbance of 1.0 acre or greater. Prior to any earth disturbance, notice of intent (NOI) application for the National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Associated with Construction Activity shall be submitted to and approved by MDE.

7. A stormwater management waiver has been granted for the proposed underground utility and maintenance work accordance with Section 3.3.A of the Maryland Stormwater Management and Erosion & Sediment Control Guidelines for State and Federal Projects. There are no stormwater requirements for proposed utility bridge. A quantity management waiver has been granted for the small amount of new development in accordance with Section 3.3.B.1.a of the Maryland Stormwater Management and Erosion & Sediment Control Guidelines for

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State and Federal Projects, and water quality requirements for this area are being satisfied by non-rooftop disconnections.

8. This project requires authorization from MDE Wetlands and Waterways Protection Program.

9. This project is located in the Chesapeake Bay Critical Area and subject to consistency with Critical Area requirements.

10. A portion of this project is located in a mapped Federal Emergency Management Agency (FEMA) 100-year floodplain. If the proposed work/construction activity changes or alters the FEMA 100-year boundaries or elevations, the Owner or his authorized agent shall be fully responsible for and required to contact FEMA and apply for a Conditional Letter of Map Amendment (CLOMR), which may necessitate a separate hydrologic and hydraulic study (determined by FEMA) before construction, and to complete the FEMA Amendment process with a Letter of Map Amendment or Revision (LOMR) after construction is completed. This includes coordinating and informing the local government/community.

APM/LSW

cc: Dave Guignet, Maryland State National Flood Insurance Program Coordinator, MDE Tammy Roberson, MDE Tidal Wetlands Division

Lisa Hoerger, Policy Coordinator, Critical Area Commission