TranTech Engineering LLC 1/31/2020

City of Everett Edgewater Creek Bridge Replacement WORK ELEMENT 4 ENVIRONMENTAL PERMITTING: This Work Element is performed by Perteet to provide environmental permitting documentation for the National Environmental Policy Act(NEPA),the State Environmental Policy Act(SEPA), and local permits/approvals. Federal funding is anticipated to be administered through WSDOT Local Programs. We therefore assume that the WSDOT will be the lead coordinator for NEPA. For the purposes of this Scope of Services,we assume that this project can be authorized under a NEPA Categorical Exclusion(CE). Environmental documentation produced under this scope of work will be based on a single preferred closure alternative to be selected by others prior to PSE preparation and after outreach is conducted by others. The necessary work elements associated with preparation of NEPA and SEPA documentation are assumed to be: 4.1 Environmental Evaluation,Field Work,and Summary Data Gathering Early in the project and prior to 30%design,the Consultant will gather relevant and available resource information about the natural and built environmental context of the project action and foreseeable alternatives for closures and detour routes. The CONSULTANT will conduct a desktop survey to identify any known and documented environmentally sensitive areas(e.g. wetlands, streams, geologic hazards, and Ecology facilities sites). This desktop review will also include identifying other known/mapped features of potential concern including public properties/parks,historic and/or cultural resources,disadvantaged populations,and ecological/natural resources. Work conducted under this task will be based on internet research and review of existing documentation on the PROJECT area and vicinity. Additionally,the CONSULTANT will perform a reconnaissance level field observation to identify and delineate the potential and known presence of ecologically sensitive critical areas (wetlands and streams)potentially affected by the project. Edgewater creek is known to occur at the project location, but wetland areas need to be further confirmed for absence or presence in and near work areas adjacent to the bridge. Field work will be conducted by a CONSULTANT environmental scientist over the course of no more than one(1) field day. The Ordinary High Water Mark(OHWM)of Edgewater Creek will be flagged in the field in the context of the project on public property (or as right of entry is secured by others on adjacent private property). Delineation flags will be located by survey pick-up along with up to two (2)flagged-boundary wetland units, if found. The survey of located delineation flags will be used for project related maps and information to identify critical areas for avoidance of impacts. Field findings of the reconnaissance will be described in NEPA documents to the level relevant to define the environmental context for NEPA review. A critical areas technical memo will be produced by the consultant to document the methods and findings of delineation efforts, as scoped under Task 4.4. The CONSULTANT will also identify the necessary environmental documentation materials as part of the background information review and site reconnaissance that may be needed to develop and meet the requirements of the State Environmental Policy Act(SEPA). No actual permit or regulatory documentation(NEPA and SEPA documentation)will be developed under Page 14 of 42