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<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 116 <br />(CNPS 2019). This species has moderate potential to occur within the Study <br />Area based on the presence of potentially suitable habitat. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-12, MM BIO-18, <br />and MM BIO-19 would reduce potential impacts to Contra Costa goldfields to: <br />Less than Significant with Mitigation Incorporated. <br />Ferris' goldfields (Lasthenia ferrisiae) <br />Ferris’ goldfields has a CRPR of 4.2, but is not listed under FESA or CESA. This <br />species is an annual herb in the sunflower family, and it blooms from February to <br />May (CNPS 2019). It is endemic to California, and its current range includes the <br />Sacramento Valley and San Joaquin Valley (CNPS 2019, Jepson Flora Project <br />2019). It typically grows in vernal pools (CNPS 2019). The microhabitat for <br />Ferris’ goldfields includes alkaline clay soils (CDFW 2019). Threats to this <br />species include development, agriculture, vehicles, and foot traffic (CNPS 2019). <br />This species has moderate potential to occur within the Study Area based on the <br />presence of potentially suitable habitat. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-12, MM BIO-18, <br />and MM BIO-19 would reduce potential impacts to Ferris’ goldfields to: Less than <br />Significant with Mitigation Incorporated. <br />Coulter's goldfields (Lasthenia glabrata ssp. coulteri) <br />Coulter’s goldfields has a CRPR of 1B.1, but is not listed under FESA or CESA. <br />This species is an annual herb in the sunflower family, and it blooms from <br />February to June (CNPS 2019). The current range of this species in California <br />includes the Inner North Coast Ranges, southern Sierra Nevada Foothills, <br />Tehachapi Mountains Area, the Central Valley, Central Western California, the <br />South Coast, northern Channel Islands, Peninsular Ranges, and western Mojave <br />Desert (CNPS 2019, Jepson Flora Project 2019). It is presumed extirpated from <br />Kern, Los Angeles, and San Bernardino counties. It typically grows in marshes <br />and swamps, playas, and vernal pools (CNPS 2019). The microhabitat for <br />Coulter’s goldfields includes alkaline soils, playas, sinks, and grasslands (CDFW <br />2019). Threats to this species include urbanization, agricultural development, <br />road maintenance, foot traffic, and drought (CNPS 2019). This species has <br />moderate potential to occur within the Study Area based on the presence of <br />potentially suitable habitat. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-12, MM BIO-18, <br />and MM BIO-19 would reduce potential impacts to Coulter’s goldfields to: Less <br />than Significant with Mitigation Incorporated. <br />Delta tule pea (Lathyrus jepsonii var. jepsonii) <br />Delta tule pea has a CRPR of 1B.2 but is not listed under FESA or CESA. This <br />species is a perennial herb in the pea family, and it blooms from May to July