2019-05-24_PERMIT FILE - M2019027

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B-32 Keenesburg Project RETTEW Project No. 114782000 Colorado Sand Company LLC April 2019 Table 3.2-State Listed Species Potential Common Name Scientific Name Status' Habitat Occurrence within Site2 Birds Burrowing Owl Athene cunicularia MBTA, Shortgrass prairie in or adjacent Possible ST to prairie dog towns Mountain Plover Charadrius MBTA, Prairie grasslands, Shortgrass Possible montanus SC prairie grazed by cattle or prairie dogs Mammals Black-tailed Cynomys Grasslands, Shortgrass prairie, Possible Prairie Dog ludovianus SC desert grasslands Plains Pocket (Geomys bursorius) Upland areas of eastern plains in Likely Gopher deep sandy soils 'MBTA—Protected under Migratory Bird Treaty Act 2The potential for occurrence is based on desktop and field assessments.Comments from CPW will be required to confirm findings. SC—State Special Concern ST—State Threatened RETTEW also coordinated with the CPW District Wildlife Manager on January 7, 2019, regarding species of concern in the project area to obtain additional information. The District Manager stated that CPW generally requests a 30-day window for reviewing land use proposals, and that he could provide comments once CPW receives the Use by Special Review (USR) notice from Weld County Planning Department for the project. As of the date of this report, no response from CPW has been received. 3.3 Field Investigation The field investigation was conducted by qualified biologists on December 19 and 20, 2018. Field crews were escorted through Guttersen Ranch by the ranch caretaker. 3.3.1 Methods Field crews completed vehicle and pedestrian surveys of the project area using previously prepared field maps and Global Positioning System (GPS) units which were utilized to navigate to the center of each quarter- section within the project area. Field crews navigated to previously identified sample point locations at the centroid of each quarter-section. Sample Point Data Forms were completed at each sample point and included location, vegetation, soil,wildlife observations, and general habitat information (Appendix Q.This data was used to characterize conditions present within the project area.Sample point locations are identified on the aerial basemap (Appendix A, Figure 2). Photographs were taken at each sample point and of any relevant findings and are provided in Appendix B. Ranch roads were utilized to get as close as possible to each pre-determined sample point location,then field crews walked the remainder of the way. Final sample point locations were chosen to be representative of surrounding habitat. The portion of the project area investigated during the field effort was limited to the areas around each sample point and the most direct routes between each location. 6 Keenesburg Project_ rnited Impact 110 Application_May 24,2019