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BORING LOG NOTES DRILLING AND SAMPLING SYMBOLS TESL' SYMBOLS Symbol Definition Symbol Definition CONS: One-dimensional consolidation test B,H,N: Size of flush -joint casing DEN: Dry density, pcf CA: Crew Assistant (initials) DST: Direct shear test CAS: Pipe casing, number indicates nominal diameter in E: Pressuremeter Modulus, tsf inches HYD: Hydrometer analysis CC: Crew Chief (initials) LL: Liquid Limit, % COT: Clean -out tube LP: Pressuremeter Limit Pressure, tsf DC: Drive casing; number indicates diameter in inches OC: Organic Content, % DM: Drilling mud or bentonite slurry PERM: Coefficient of permeability (K) test; F - Field; DR: Driller (initials) L - Laboratory DS: Disturbed sample from auger flights PL: Plastic Limit, % FA: Flight auger; number indicates outside diameter in qP: Pocket Penetrometer strength, tsf (approximate) inches qc: Static cone bearing pressure; tsf HA: Hand auger; number indicates outside diameter q": Unconfined compressive strength, psf HSA: Hollow stem auger; number indicates inside diameter R: Electrical Resistivity, ohm -eras in inches RQD: Rock,Quality Designation ofRock Core, in percent LG: Field logger (initials) (aggregate length of core pieces 4" or more in length MC: Column used to describe moisture condition of as a percent of total core ru ) samples and for the groundwater level symbols SA: Sieve analysis N (BPF): Standard penetration resistance (N-value) in blows per TRX: Triaxial compression test foot (see notes) VSR: Vane shear strength, remoulded (field), psf NQ wireline core barrel VSU: Vane shear strength, undisturbed (field), psf PQ wireline core barrel WC: Water content, as.percent of dry weight Rotary drilling with fluid and roller or drag bit %-200: Percent of material finer than #200 sieve REC: In split -spoon (see notes) and thin -walled tube sampling, the recovered length (in inches) of sample. STANDARD PENETRATION TEST NOTES In rock coring, the length of core recovered (Calibrated Hammer Weight) (expressed as percent of the total core run). Zero The standard penetration test consists of driving a split -spoon indicates no sample recovered. sampler with a drop hammer (calibrated weight varies to provide REV: Revert drilling fluid N60 values) and counting the number of blows applied in each of SS: Standard split -spoon sampler (steel; 1%" is inside three 6" increments of penetration. If the sampler is driven less diameter; 2" outside diameter); unless indicated than 18" (usually in highly resistant material), permitted in otherwise ASTM:D1586, the blows for each complete 6" increment and SU Spin -up sample from hollow stem auger for each partial increment is on the boring log. For partial TW: Thin -walled tube; number indicates inside diameter increments, the number of blows is shown to the nearest 0.1' in inches below the slash. WASH: Sample of material obtained by screening returning rotary drilling fluid or by which has collected inside The length of sample recovered, as shown on the "REC" the borehole after "falling" through drilling fluid column, may be greater than the distance indicated in the N WH: Sampler advanced by static weight of drill rod and column. The disparity is because the N-value is recorded below hammer the initial 6" set (unless partial penetration defined in WR: Sampler advanced by static weight of drill rod ASTM:D1586 is encountered) whereas the length of sample 94mm: 94 millimeter wireline core barrel recovered is for the entire sampler drive (which may even V • Water level directly measured in boring extend more than 18"). 0: Estimated water level based solely on sample appearance O1REP052C(O1/05) AMERICAN ENGINEERING TESTING, INC.