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_ ENVIRONMENTAL SCIENCE ASSOCIATES <br /> COMPREHENSIVE WETLAND DELINEATION DATA SHEET <br /> Project/Site: RMC Pacific Vernalis Quarry Mining and Reclamation Project Project#: 203015 <br /> r Applicant/Owner: San Joaquin County Date: 5/4/05 <br /> Field Investigator(s): Joshua Roldt County:ian Joaquin <br /> State: Caiifomia <br /> Do normal environmental conditions exist at the plant community? Yes Community ID: Irrigation Basin <br /> Has the vegetation,soils,and/or hydrology been significantly disturbed? No Transect ID: <br /> Is the area a potential Problem Area or Atypical Situation? Yes Data Point ID: DP-03 <br /> Do"new normal"circumstances exist at the site? No Name/ID: Basin 2 <br /> Is the site an agricultural land? Yes <br /> r <br /> VEGETATION <br /> Dominant Plant Species Stratum Indicator Status Percent Cover Associated Species <br /> Rumex crus us H FACW- 35 <br /> y„ Xanthium samnarium H OBL 30 <br /> C eros eragrostis H FAC+ 15 <br /> Brassica nigra H NL 20 <br /> Total shrub cover: 0% <br /> Total herb cover: 1000/. <br /> Percent of dominant species that are OBL,FACW,and/or FAC(excluding FAC-)? 3/4=75% <br /> O Morphological adaptations 0 Taxonomic references <br /> 0 Technical literature O Other <br /> Is the Hydrophytic vegetation criterion met? Yes X No <br /> Rationale: More than 50%of dominant species are FAC or wetter. - <br /> SOILS <br /> Map Unit Name(series and phase) Vernalis clay loam,0 to 2 percent slopes Drainage Class well drained <br /> Taxonomy(subgroup) Fine-loamy,mixed,thermic Calcixerollic Xerochmpts Confirmed type? <br /> Profile Description <br /> De th" Matrix Color Mottle Colors Abundance/Contrast Texture,Concretions,Structure <br /> 0-6 1 OYR 4/2 n/a n/a silty loam;no concretions <br /> 2+refusal <br /> Hydric soil indicators: <br /> ❑ Histosol(except folists) 0 Reducing condition O High organic content in sandy soils Observations: <br /> ❑ Histic epipedons O Gleyed or low chroma colors 0 Organic streaking in sandy soils Irrigated <br /> ❑ Sulfidic odor 0 Concretions 0 Spodic horizon Land leveled <br /> ❑ Aquic moisture regime 0 Listed on local soils list 0 Histic epipedons Ditch drained <br /> ❑ Peraquic moisture regime 0 Listed on national soils list 0 Other Pumped <br /> Graded <br /> Is the hydric soil criterion met? Yes No X <br /> Rationale: Chroma of 2 would require mottling to meet hydric soil indicator criteria. <br /> r <br /> r <br /> r <br />