CATEGORICAL EXCLUSION DETERMINATION - CODY WASTEWATER TREATMENT FACILITY UPGRADE & EXPANSION-PHASE 2

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

CATEGORICAL EXCLUSION DETERMINATION

For the CODY WASTEWATER TREATMENT FACILITY UPGRADE & EXPANSION-PHASE 2

Park County, Wyoming

The Department of Environmental Quality/Water Quality Division (DEQ) has conducted a review of the proposed WASTEWATER TREATMENT FACILITY UPGRADE & EXPANSION-PHASE 2 project in accordance with EPA and State of Wyoming procedures for implementing the State Environmental Review Process. DEQ has determined 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 City of Cody plans to substantially upgrade the existing Wastewater Treatment Plant and associated facilities. The estimated total cost of improvements is $9,600,000. Planned improvements include embankment earthwork to create a new lined cell, fine bubble aeration, biosolids decant pumping,  access road improvements, new sewer influent piping, construction of a pre-treatment building with office/shop, a blower building, UV disinfection, site effluent irrigation, and the addition of electrical and mechanical components such as SCADA and pumps. The City of Cody has determined that the project can be best completed if it is constructed in phases. The total cost of design and construction of Phase 1 is $3,600,000 and Phase 2 is $6,000,000.  This Categorical Exclusion pertains to PHASE 2.

The City of Cody intends to use four (4) funding sources for the completion of Phase 2: City of Cody Wastewater Unrestricted Reserves, Mineral Royalties Grant administered by the Wyoming Office of State Lands and Investments, Park County Special Purpose Tax, and the Wyoming Clean Water State Revolving Loan Fund administered by the Wyoming Office of State Lands and Investments.  The City of Cody plans to borrow $1,517,600 from the Wyoming Clean Water State Revolving Loan Fund to facilitate Phase 2 design and construction.   Wastewater User Fees were increased in Ordinance 2013-13 in anticipation of the project.  The increased user fees have been earmarked in the Wastewater Enterprise Fund Unrestricted Reserves.  These Reserves will be used to repay this loan, which has terms of 2.5% and 20 years.

The City of Cody is aware of and accepts the fact that they will be responsible for any required mitigative actions associated with and including storm water runoff, erosion control, archeological/historic artifacts, and air quality concerns. These will be part of the standard State Revolving Funds Program contract conditions.

DEQ is granting an exclusion because the project consists of minor upgrades of existing facilities and addition of minor ancillary facilities adjacent to the existing facilities.  The project will be constructed completely within the existing wastewater treatment facility property, which has been previously disturbed.  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 City of Cody, Park County, Wyoming.

The documentation to support this decision will be on file in the DEQ Casper Field Office and is available for public scrutiny upon request.  Comments concerning this decision may be addressed to Stanley Miller, SRF Project Engineer, DEQ Cheyenne Office, 200 West 17th Street, Suite 200, Cheyenne, WY 82002, telephone (307) 777-6371, email stanley.miller@wyo.gov.


Publish Date:  _11/21/2017____________