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Categorical Exclusion Determination, City of Casper, WY, North Platte Sanitary Sewer Interceptor Rehabilitation Phase II Project

The Department of Environmental Quality/Water Quality Division (DEQ) has conducted a review of the proposed North Platte Sanitary Sewer Interceptor Rehabilitation Phase II Project in accordance with EPA and State of Wyoming procedures for implementing the State Environmental Review Process. DEQ has determined that this project is eligible for a categorical exclusion. Accordingly, DEQ is exempting the project from further substantive environmental review requirements under the State Environmental Review Process. Neither an Environmental Assessment/Finding of No Significant Impact nor an Environmental Impact Statement/Record of Decision will be required for the proposed action. The following is a brief description of the situation and the proposed action and a brief statement of how the action meets the criteria for a categorical exclusion.

The project involves design and construction of improvements needed to address severely corroded sections identified in a sewer condition assessment of the North Platte Sanitary Sewer Interceptor. The project is expected to cost $5,050,000, with $2.8 Million coming from a Clean Water State Revolving Fund loan. Loan repayment will come from user fees, system investment charges, and/or fund reserves. Actual user fee increases have yet to be determined but are estimated to be $0.31/month per user if no reserves are used. The terms of the loan are 1.25% interest rate, and 30 years duration.

The City of Casper is aware of and accepts the fact that they will be responsible for any required mitigative actions associated with the project, including but not limited to storm water runoff, erosion control, archeological/historic artifacts, and air quality concerns. These actions will be part of the standard State Revolving Funds Program contract conditions.

DEQ is granting an exclusion because this is a rehabilitation of an existing sewer interceptor—no changes to its routing or diameter will occur. This project will be completely constructed in previously disturbed ground, specifically ground disturbed by the installation of the interceptor sewer in the early 1980s. DEQ has determined that exempting the proposed project from further review under the State Environmental Review Process will not result in adverse impacts to the population or the area of Casper and Natrona County, Wyoming.

The determination shall become effective upon distribution by the Department and may be re-evaluated and the determination revoked at any time that adverse information is made available. The documentation to support this decision will be on file in the DEQ Cheyenne Office and is available for public review upon request. To request a copy of the categorical exclusion, contact:

Greg Crocker, SRF Project Manager
Department of Environmental Quality
200 W. 17th St.
Suite 200
Cheyenne, WY 82002
Tel. (307) 777-6941
FAX (307) 635-1784
*[email protected] <[email protected]>*

*Para español, visite **deq.wyoming.gov* [ [link removed] ]". Americans with Disabilities Act: special assistance or alternative formats will be made available upon request for individuals with disabilities.  Please contact Greg Crocker for such requests."


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This email was sent to [email protected] using GovDelivery Communications Cloud on behalf of: Wyoming Department of Environmental Quality · 200 West 17th St.· Cheyenne, WY 82002 GovDelivery logo [ [link removed] ]
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