22-SF-0088 - MDE Final Approval - WNRC Ret Wall Replacement GSA.pdf

STORMWATER MANAGEMENT AND SEDIMENT & EROSION CONTROL APPROVAL

STATE/FEDERAL PROJECTS

SEDIMENT & STORMWATER PLAN REVIEW DIVISION

MDE NUMBER: 22-SF-0088 APPROVED BY: ____________________________________

Program Manager, Sediment, Stormwater, and Dam Safety EFFECTIVE DATE: May 6, 2022 (Pursuant to Criteria Noted Below)

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

APPROVAL IS HEREBY GRANTED: General Services Administration ADDRESS: Suitland Federal Center

4600 Silver Hill Rd Hillcrest Heights, MD 20746 Attn: Mr. Ronald Scott

HEREINAFTER KNOWN AS OWNER,

FOR THE PLANS AND SPECIFICATIONS PRESENTED FOR: Contract No.RMD84124 AI No. 173737

Retaining Wall Replacement, Washington National Records Center (WNRC), Suitland, MD - Prince George’s County

PREPARED BY: Pennoni Associates Inc.

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. The 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 must 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. A stormwater management waiver has been granted for this project in accordance with Section 3.3.A of the Maryland Stormwater Management and Erosion & Sediment Control Guidelines for State and Federal Projects.

DTL/JAS

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