row_num,CN,PLT_CN,INVYR,STATECD,COUNTYCD,PLOT,SMPLNNBR,VSTNBR,LAYER_TYPE,SAMPLER_TYPE,QASTATCD,SAMPLE_DATE,LAB_ID,SAMPLE_ID,FIELD_MOIST_SOIL_WT,AIR_DRY_SOIL_WT,OVEN_DRY_SOIL_WT,FIELD_MOIST_WATER_CONTENT_PCT,RESIDUAL_WATER_CONTENT_PCT,TOTAL_WATER_CONTENT_PCT,BULK_DENSITY,COARSE_FRACTION_PCT,C_ORG_PCT,C_INORG_PCT,C_TOTAL_PCT,N_TOTAL_PCT,PH_H2O,PH_CACL2,EXCHNG_NA,EXCHNG_K,EXCHNG_MG,EXCHNG_CA,EXCHNG_AL,ECEC,EXCHNG_MN,EXCHNG_FE,EXCHNG_NI,EXCHNG_CU,EXCHNG_ZN,EXCHNG_CD,EXCHNG_PB,EXCHNG_S,BRAY1_P,OLSEN_P,MEASYEAR,MODIFIED_BY,MODIFIED_DATE,MODIFIED_IN_INSTANCE,CREATED_BY,CREATED_DATE,CREATED_IN_INSTANCE