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Mr. Lorenzo Wingate City of La Porte August 31, 2021 Page 7 Additional Services: The following services have been scoped to be authorized on an as-needed basis line item by line item. Task 9A: Section 404 Permitting If the selected project location is determined to contain WOTUS, authorization under Section 404 of the Clean Water Act (Section 404) for regulated activities (i.e. placement of fill) below the Ordinary High- Water Mark (OHWM) would be required prior to beginning construction. HalffÓs Environmental Team will work with engineering and USACE to secure the appropriate permit to allow construction of the proposed detention pond. This task will include preparation of all permit components as outlined in ENG Form 4345, as follows: Name, address, and telephone numbers of the prospective permittee; Location of the proposed project; A description of the proposed project; the projectÓs purpose; direct and indirect adverse environmental effects the project would cause, including the anticipated amount of loss of water of the United States expected to result from the activity, in acres, linear feet, or other appropriate unit of measure; Project schedule; Names and addresses of adjoining property owners; List of authorizations required by other federal, interstate, state, or local agencies for the work, including approvals or denials already received; Delineation of waters of the United States (see task description); Section 404(b)(1) alternatives analysis with discussion of avoidance and minimization measures; Compensatory mitigation plan Î It is anticipated that the proposed project will involve appropriate avoidance and minimization of adverse impacts to aquatic resources. In the event construction of the detention pond would result in permanent adverse impacts to aquatic function and values the applicant would be require to supply compensatory mitigation. The USACE preferred method (by rule) is purchase of mitigation bank credits. However, in the absence of appropriate bank credits, the Applicant may evaluate on-site/in-kind mitigation alternatives to achieve appropriate mitigation. Mitigation requirements will be informed by the functional value of the wetlands as determined during the delineation, post-project conditional estimates, and pre- application discussions with the USACE to ensure the that proposed project meets compensatory mitigation requirements and the purpose and need of the project (conveyance improvements and flood risk reduction); Threatened and endangered species assessment (see task description); and Cultural resources assessment (see task description).