2022-09-26_PERMIT FILE - M2022042 (7)

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Windsor East Mine, Exhibit H – Wildlife Information September 2022 Page 1 | 2 EXHIBIT H – WILDLIFE INFORMATION 1.0 GENERAL Martin Marietta Materials, Inc. retained Pinyon Environmental, Inc. (Pinyon) to evaluate potential wildlife habitat impacts, including the determination of threatened or endangered (T&E) species habitat for the Windsor East Mine Site in Weld County, near Windsor, Colorado. This Exhibit summarizes Pinyon’s Biological Resources Technical Memorandum (Attachment H-1) which addresses the wildlife associated with this property. Specific details can be found in the attachment. This 150.3-acre parcel is located in the Bracewell, Colorado 7.5-Minute Quadrangle (Sections 35 and 36 of T6N, R67W, of the 6th Principal Meridian) on CR23 along the Cache La Poudre River. Agriculture is the primary use of the site. Primary land uses in the surrounding area include agricultural, industrial, and mining. The Cache la Poudre River runs along the southern edge of the property. 2.0 SIGNIFICANT WILDLIFE RESOURCES The property is dominated by agricultural fields. Species encountered during the site visits include white-tailed deer (Odocoileus virginianus), black-tailed prairie dog (Cynomys ludovicianus), Bald Eagle (Haliaeetus leucocephalus), Swainson’s Hawk (Buteo swainsoni), Red-tailed Hawk (Buteo jamaicensis), Western Kingbird (Tyrannus verticalis), American Robin (Turdus migratorius), Say’s Phoebe (Sayornis saya), Mourning Dove (Zenaida macroura), Killdeer (Charadrius vociferus), Western Meadowlark (Sturnella neglecta), Red-winged Blackbird (Agelaius phoeniceus), and House Finch (Haemorhous mexicanus). Other wildlife species that could be expected to occur in the study area include mule deer (Odocoileus hemionus), raccoon (Procyon lotor), red fox (Vulpes vulpes), skunk (Mephitis mephitis), American badger (Taxidea taxus), and coyote (Canis latrans). 3.0 SEASONAL USE OF THE AREA The site is within a CPW-mapped winter range for mule deer and white-tailed deer. The site also has winter concentration and production of Wild Turkey and Canada Goose (Branta canadensis). 4.0 PRESENCE AND ESTIMATED POPULATION OF THREATENED OR ENDANGERED SPECIES Pinyon addressed the presence and estimated population of Threatened or Endangered Species in their Memorandum. Please refer to Attachment H-1 for their findings. 5.0 GENERAL EFFECT ON WILDLIFE DUE TO MINING OPERATION Due to the current agricultural use of the land, the area does not provide high-quality wildlife habitat, meaning potential impacts to general wildlife are expected to be minor. The water storage reservoirs that will be created via reclamation of this site will shift the current habitats to an open water habitat. The project is designed to avoid impacts to the Cache la Poudre River and riparian areas. Due to the proximity of Parsons Mine, increased habitat fragmentation resulting from mining activity at this site is not expected to occur. Based on the location of the Windsor East Mine site, the development of the area is not anticipated to impact federally listed species. In Attachment H-1, Pinyon makes the following recommendations related to state-listed and special concern species: There is a CPW-mapped Bald Eagle winter roost near the property and several Bald Eagles were noted roosting in and near the project area during the site visit. Because there is another mine site closer to the mapped roost, Bald Eagles in the area may be habituated to disturbances associated with mining activities and the area may be considered a Highly Developed Area. Determination of whether a roost is within a Highly Developed Area should be done in coordination with CPW (CPW, 2020). For Highly