A. Planned Unit Development (PUD) applications shall require a natural features analysis (NFA) and natural features map(s) to be submitted with the preliminary development plan as specified below:
1. The NFA shall outline the resources present on or within the boundaries of the site, as well as the associated effects (direct and indirect) of the proposed development on or to those resources. In addition to the resources listed below, impacts to open space, wildlife habitat, and agriculture (if applicable) shall be addressed.
2. The NFA shall be completed by a resource specialist, i.e. someone showing sufficient education, experience, and/or credentials in the specific resources outlined below. The minimum experience for the author of the NFA shall be one of the following: a BS/BA from an accredited college or university in a related field of study plus at least ten (10) years direct field experience, a MS/MA from an accredited college or university in a related field of study plus at least five (5) years direct field experience, or a Certified Environmental Professional as defined by the American Society for Testing and Materials or the National Association of Environmental Professionals. If the resource specialist is a Certified Environmental Professional, they must also provide evidence supporting their qualifications (academic or professional experience) related to the resources identified below.
3. The NFA shall include a mitigation plan that adequately addresses the impacts to the resources affected. As the associated impacts to the resources are permanent in nature, the proposed mitigation action shall also be in effect in perpetuity. The mitigation plan shall include adaptive management principles (monitoring and alternative actions if unsuccessful), a funding source and funds manger (if required), and justification that the plan would effectively mitigate the impacts.
4. The NFA shall also include the following:
a. Hydrology: Analysis and map of natural drainage patterns and water resources including an analysis of streams, natural drainage swales, ponds or lakes, wetlands, floodplain areas or other areas subject to flooding, poorly drained areas, permanent high ground water areas, and seasonal high ground water areas throughout the site.
b. Soils: Analysis and map of types of soils present in the site area including delineation of prime agricultural soil areas, aquifer recharge soil areas, unstable soils most susceptible to erosion, and soils suitable for development. The analysis of soils shall be based on the Ada County soils survey (United States department of agriculture, natural resources conservation service).
c. Topography: Analysis and map of the site's terrain including topographic mapping of elevations with details sufficient to determine property topography and any slopes. If a drainage channel borders the proposed development, the contour lines shall extend the additional distance necessary to include the entire drainage facility abutting the site. Additionally, if determined by the administrator, for adequate analysis of impacts, contour lines a distance determined by the administrator shall extend beyond the proposed development boundary.
d. Vegetation: Analysis and map of existing vegetation of the site including, but not limited to, existing trees, plants, and ground cover species.
e. Wildlife: Analysis and map of existing or potential wildlife species.
f. Sensitive Plant And Wildlife Species: Analysis and map of sensitive plant and wildlife species of the site including, but not limited to, those species listed in the Idaho conservation data center (state of Idaho department of fish and game).
g. Historic Resources: Analysis and map of existing historic resources as identified on the Ada County historic resources inventory and/or the State of Idaho Historic Preservation Office.
h. Hazardous Areas: Analysis and map of all potentially hazardous areas including, but not limited to, land that is unsuitable for development because of flood threat, poorly drained areas, high ground water, steep slopes, rock formation, buried pipelines, or other similar conditions likely to be encountered.
i. Agriculture: Analysis and map of existing agricultural resources including farming and ranching.
j. Map Features: The map shall show important features, including, but not limited to, the following: outline of existing resources (see above) and structures, watercourses, wetlands, power lines, telephone lines, railroad lines, airport influence areas, any existing easements, municipal boundaries, and section lines.
k. Other Supplemental Data: Other supplemental data may be required by the city including, but not limited to, the following:
(1) Approximate location of any areas of fill.
(2) The elevations of all corner points on the boundaries of the proposed plat.
(3) The presence of any significant natural or cultural resources, i.e. wetlands or riparian areas, state or federally listed species of concern (plants, insects, and wildlife), culturally significant sites for Tribes, sites identified on the national register, or others.
B. Mitigation Plan: A mitigation plan is intended to off-set the spatial and temporal impacts (direct and indirect) to existing resources (see above) of a site from a proposed action. Mitigation actions should be similar in scope (size or intensity), timeframe (permanent impacts addressed in perpetuity), and location (within in ten (10) miles of the Eagle City limits). This can be accomplished a number of ways, including but not limited to (examples only):
1. Permanently protecting an equivalent amount of land being impacted: this can be accomplished with local land banks, development of off-site conservation easements, or other similar approaches using existing lands that could otherwise be developed in the future;
2. Increased habitat or use value of residual lands: increasing the value of the residual lands within a specified project area to offset the loss of open space, wildlife habitat, or ag lands. For example, if one hundred (100) acres were being developed, the developer could set aside twenty-five (25) acres (seventy- five (75) acres developed) and increase the value of the residual habitat through enhancement measures so that the residual lands would provide the same level of habitat value as the 100 acres;
3. A combination of the two actions above coupled with a community education plan;
4. Conservation and Education Program (CEP): payment on a per lot basis to the City's Conservation and Education Program with fees established by resolution of the city council;
5. Or any other proposed mitigation that adequately mitigates impacts to resources as determined by the city council. (Ord. 868, 8-8-2022)