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Army Corps of Engineers (ACOE, 1987; 2008) and a search for special-status species and suitable habitat for special-status species (e.g., blue elderberry shrubs, vernal pools). Trees in and near the site were assessed for the potential use by nesting raptors, especially Swainson's hawk (Buteo swainsoni). The grassland areas in the site were searched for burrowing owls (Athene cunicularia) or ground squirrel burrows with evidence of past occupancy. Results GENERAL SETTING: The 23+/- acre project site is in San Joaquin County, California (Figure 1). The site is within an Unnumbered Section within Township 1 North, Range 7 East, of the USGS 7.5-minute Stockton East topographic quadrangle (Figure 2). The site is leveled and is situated at an elevation of approximately 25 feet above mean sea level. The site consists of two fields of disked grassland on either side of Duck Creek, which flows through the site (Figure 3 and photographs in Attachment C). The fields in the site have been historically farmed for several decades in hay and annual crops and are highly disturbed from routine farming activities. There is a short row of ornamental trees along the north edge of the site and a tree north of Duck Creek near Pock Lane. Land uses in this portion of San Joaquin County are primarily residential with smaller parcels used for agricultural purposes and commercial development (Figure 3 and photographs in Attachment C). The north edge of the site is bordered by Loomis Road and Pock Lane borders the east edge of the site. A fallow grassland field borders the south edge of the portion of the site south of Duck Creek. Duck Creek borders the south edge of the remainder of the site and there is a field of irrigated pasture with three large radio towers south of the creek. A ruderal grassland field with a church borders the west edge of the site, 3009 Pock Lane: Biology 5 November 24, 2021