1. (a) A study of the geology, seismology, and soils impacts of the facility consisting of the identification and mapping of existing conditions, an impact analysis, and proposed impact avoidance and mitigation measures, including:

   1. (1) a map delineating existing slopes (0-3 percent, 3-8 percent, 8-15 percent, 15-25 percent, 25-35 percent, greater than 35 percent) on and within the drainage area potentially influenced by the facility site and interconnections;
   2. (2) a proposed site plan showing existing and proposed contours at two-foot intervals, for the facility site and interconnections, at a scale sufficient to show all proposed buildings, structures, paved and vegetative areas, and construction areas (features may be provided in stand-alone mapping or included as part of site plans required in section 900-2.6[f][1][i] and [ii] of this Subpart);
   3. (3) a description of excavation techniques to be employed;
   4. (4) a description of the characteristics and suitability for construction purposes of the material excavated for the facility and of the deposits found at foundation level, including factors such as soil corrosivity (for both steel and concrete), bedrock competence, and subsurface hydrologic characteristics and groundwater levels; analysis should be based on a geotechnical engineering report verifying subsurface conditions, including the results of borings and/or test pits at a subset of turbine locations (for wind facilities) or solar array locations (for solar facilities) that are representative of mapped soil and bedrock formations within the facility site. Identify appropriate mitigation measures required in locations with highly corrosive soils, soils with a high frost risk, and soils with high shrink/swell potential. Characterize subsurface conditions where hydraulic horizontal directional drilling is proposed and identify all locations where blasting operations will be required;
   5. (5) a plan describing all blasting operations including location, minimum blasting contractor qualifications, hours of blasting operations, estimates of amounts of rock to be blasted, warning measures, measures to ensure safe transportation, storage and handling of explosives, use of blasting mats, conduct of a pre-blasting condition survey of nearby buildings and improvements, and coordination with local safety officials, and measures to protect nearby structures and groundwater wells;
   6. (6) an assessment of potential impacts of blasting to environmental features, above-ground structures and below-ground structures such as pipelines and wells;
   7. (7) an identification and evaluation of reasonable mitigation measures regarding blasting impacts, including the use of alternative technologies and/or location of structures, and including a plan for securing compensation for damages that may occur due to blasting;
   8. (8) a description of the regional geology, tectonic setting and seismology of the facility site;
   9. (9) an analysis of the expected impacts of construction and operation of the facility with respect to regional geology, including analysis of potential impacts in areas of known of anticipated karst, and a description of measures to minimize and/or mitigate risks from construction (including blasting and pile driving) in karst areas;
   10. (10) an analysis of the impacts of typical seismic activity experienced in the facility site based on current seismic hazards maps, on the location and operation of the facility identifying potential receptors in the event of failure, and if the facility is proposed to be located near a young fault or a fault that has had displacement in Holocene time, demonstration of a suitable setback from such fault;
   11. (11) a map delineating soil types on the facility site and interconnection sites;
   12. (12) a description of the characteristics and suitability for construction purposes of each soil type identified above, including a description of the soil structure, texture, percentage of organic matter, and recharge/infiltration capacity of each soil type and a discussion of any de-watering that may be necessary during construction and whether the facility shall contain any facilities below grade that would require continuous dewatering; and
   13. (13) maps, figures, and analyses delineating depth to bedrock and underlying bedrock types, including vertical profiles showing soils, bedrock, water table, and typical foundation depths on the facility site, based on information to be obtained from available published maps and scientific literature, review of technical studies conducted on the facility site, and on-site field observations, test pits and/or borings as available.

2. (b) An evaluation to determine suitable building and equipment foundations, including:

   1. (1) a preliminary engineering assessment to determine the types and locations of potential foundations to be employed. The assessment shall investigate the suitability of such foundation types as spread footings, caissons, or piles, including a statement that all such techniques conform to applicable building codes or industry standards;
   2. (2) If piles are used, a description and preliminary calculation of the number and length of piles to be driven, the daily and overall total number of hours of pile driving work to be undertaken to construct the facility, and an assessment of pile driving impacts on surrounding properties and structures due to vibration;
   3. (3) identification of mitigation measures regarding pile driving impacts, if applicable, including a plan for securing compensation for damages that may occur due to pile driving; and
   4. (4) an evaluation of the vulnerability of the facility site and the operation of the facility to an earthquake event and a tsunami event.

Exhibit 10 shall contain: