Attachment 4-DPW22-027 NEPA_2022-254mg.pdf

Mitigation Measures/Requirements Table

Point of Contact

Ryan J. Hershberger Project Number:

DPW22-027

POC Phone:

719-526-3537 NEPA Number:

2022-254mg Title

Apply Dust Suppressant, Postwide Project Description

Apply magnesium chloride (MgCl) to select aggregate surface roads on Fort Carson through an IDIQ contract.

AIR RESOURCES

John Wachter 719-526-1694 Paul Trygstad 719-524-1254

Tyler Wendtland 719-526-2091

Air Program has been working closely with engineering division to coordinate suppressant application. No concerns.

POTABLE WATER/WASTEWATER

John Wachter 719-526-1694

Jeff Farmer 719-526-1730

STORMWATER

John Wachter 719-526-1694 Melinda Norris 719-526-1697

Take care to not over spray causing run-off into water bodies and/or drainages. Adhere to manufacturer’s instructions for handling and spill responses. Maintain a spill response plan during the duration of the project.

ASBESTOS/LEAD/TOXICS

David Martin 719-526-1725

IRP

Joe Gallegos 719-526-8001

AST/UST/SPILL

Terry Eberle 719-526-9411

RCRA

Cheryl Frischkorn 719-526-1686

No comments.

INVASIVE PLANTS/PEST MANAGEMENT

Roger Peyton 719-524-5395 Tammy Craig 719-526-1329

In order to prevent the spread of invasive species, equipment brought to the site shall be clean and free of the seeds, roots, or vegetative parts of invasive weeds. Likewise if noxious weeds are present on the site, equipment used on site must be cleaned thoroughly prior to moving to other locations. Minimize soil disturbances that could cause an increase of weedy vegetation. Any imported soils, gravels, and fill need to be from sources free of invasive species. If possible, separately stockpile topsoil not infested with noxious weeds and return to top during remediation. Ensure that any removed soils with invasive species present are buried as deep as possible and covered with 18 inches of uncontaminated soils, or hauled to appropriate disposal locations where there is no concern about the propagation of invasive species from seeds or roots present in the debris. Utilize native plants for any vegetative restoration work (do not use crested wheatgrass which may be listed in outdated seed mix lists). Ensure that any mulches, soils, and/or seed sources used are certified to be free of federal and Colorado noxious weeds. Please contact the Installation Pest Management Coordinator at 719-217-4887, if there are any questions regarding seed mixes or the identification/management of invasive plants.

CULTURAL RESOURCES

Jennifer Kolise 719-526-4484

Kari Pittman (PCMS) 719-503-6136 Benjamin Zandarski (PCMS) 719-722-9321

This activity is exempted from further Section 106 consultation under the Fort Carson Built Environment Programmatic Agreement and the Fort Carson Downrange Programmatic Agreement. No further action required.

BE I.A2; FC D1b

FORESTRY/ARBORIST

Jeff McLemore 719-526-1667

No concerns.

WATERSHEDS/WETLANDS/404

Roger Peyton 719-524-5395 Bridgette Glass 719-526-1685

Magnesium chloride has been shown to reduce abundance and diversity of benthic macroinvertebrates in streams (Katalik et al 2017). Because of this, my recommendation is to not apply magnesium chloride within 20 ft of any creek or drainage (for example within 20 ft from edge of low water crossing) if it is dry and within 30 ft of any creek or drainage if it is wet at the time of magnesium chloride application.

WILDLIFE

Anna Joy Lehmicke 719-526-3975

Michelle Blake 719-503-6538 (PCMS) Amanda Luper 719-524-5393

No wildlife concerns.

OTHER

NEPA POCs Angie Bell 719-526-4666

Marcus Gray 719-526-2752 The Fort Carson NEPA Office must be notified of any change to the scope, location, or size of the project. Project proponent is responsible to ensure coordination, monitoring, and mitigation requirements listed in this document are implemented. Further Coordination May Be Required:

Signature:

8/10/2022

X Marcus Gray

Marcus Gray

Signed by: GRAY.MARCUS.1153509138 Updated Signature:

Finalized Date:8/10/2022 Date Updated:

** Subject to requirements listed in the Mitigation Measures/Requirements Table. If project is not initiated within 180 days, and/or there is a change in scope of work or location this document becomes null and void.

Contact the NEPA Section for re-submittal. Expiration Date: 2/6/2023

Any environmental information needed to meet permit requirements (i.e. historic properties, T&E Species, Air Quality, etc.) can be obtained from the Fort Carson Program POCs listed above.

CAUTION: IF THIS FORM IS PROVIDED AS AN ATTACHMENT TO, OR OTHERWISE AS A PART OF, A

CONTRACT, THE FOLLOWING APPLIES:

The above information represents assessments from the Fort Carson DPW Environmental Division concerning environmental requirements relating to this project. These assessments are provided for the Contractor’s information only. The Government does not warrant that these assessments are accurate or comprehensive. The Contractor remains responsible to determine and comply with all applicable federal, state, local, and military environmental laws and regulations.

All personnel performing work for or on behalf of Fort Carson must be aware of and understand Fort Carson's environmental requirements. For information regarding specific requirements, contact the Fort Carson environmental POC at 719-526-8893.