Laserfiche WebLink
1 <br /> <br />SUMMARY <br />On August 26, 2021, Olberding Environmental, Inc. conducted a field reconnaissance survey of <br />the Merritt Property (Property) for the purpose of identifying sensitive plant and wildlife species, <br />sensitive habitats, and biological constraints associated with the Property. Additional protocol <br />level California red-legged frog (CRLF) (Rana draytonii) surveys were conducted from March <br />through May 2022. The Property surveyed is comprised of approximately 49.38 acres within the <br />City of Pleasanton, Alameda County, California. <br />The reconnaissance survey was conducted simultaneously with a jurisdictional delineation of the <br />Property. Results of the delineation were verified by the Army Corps of Engineers (Corps) in <br />2022 indicating that the Property contains wetlands/waters that are considered jurisdictional by <br />the Corps, Regional Water Quality Control Board (RWQCB), and/or the California Department <br />of Fish and Wildlife (CDFW). Results of the verified jurisdictional delineation survey identified <br />nine aquatic features. Two of these features (one intermittent drainage and one ephemeral <br />drainage) were determined to fall under the Corps’ jurisdiction and total 0.03 acre (ac) and 315 <br />linear feet (lnft). The remaining seven ephemeral features were all determined to be non-Corps <br />jurisdictional features and total 0.16 ac and 2,013 lnft. However, these features would still fall <br />under the jurisdiction of the State of California and the RWQCB. <br />A query of the U.S. Fish and Wildlife Service (USFWS) Information for Planning and <br />Consultation (IPaC), the California Natural Diversity Database (CNDDB), and the California <br />Native Plant Society (CNPS) showed that ten special-status species have a low to moderate <br />potential to occur on the Property. This includes four plant species, two invertebrates, three birds, <br />and one mammal species. The special-status plant species with a potential to occur include bent- <br />flowered fiddleneck (Amsinckia grandiflora), big-scale balsamroot (Balsamorhiza macrolepis <br />var. macrolepis), Mount Diablo fairy-lantern (Calochortus pulchellus), and Santa Cruz tarplant <br />(Holocarpha macradenia). These species all have the potential to occur within the annual <br />grassland habitat found throughout the Property. It is recommended that targeted botanical <br />surveys be conducted for these species sometime between April and June, within one year of the <br />start of construction. <br />The two invertebrate species with a potential to occur on the Property are the Crotch bumble bee <br />(Bombus crotchii) and the western bumble bee (Bombus occidentalis). There are old but <br />presumed extant CNDDB occurrences of these species within five miles of the Property, and the <br />Property contains numerous flowering plant species that can provide nectar for these bees. It is <br />recommended that an invertebrate survey be conducted in conjunction with the botanical survey <br />to identify the presence or absence of these species.