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required in a Level 1 and include the following: <br /> 3.6.1 Plot plan showing locations of borings and test pits. <br /> 3.6.2 Logs of borings and/or observations pits, including all sampling data <br /> and water level measurements. <br /> 3.6.3 Soil profile drawing showing estimated stratigraphy and the locations <br /> of field samples and observed water levels. <br /> 3.6.4 Map showing boundaries of units. <br /> 3.6.5 Map showing areas of potential geologic-natural and/or seismic <br /> hazards, if any (by inclusion or by reference in body of text). <br /> 3.6.6 Map defining and delineating the sequence, distribution, and <br /> characteristics of soil/rock materials throughout the site. <br /> 4. Review and Determination. Further geological and geotechnical investigation is <br /> required when one of the following circumstances exist: <br /> 4.1 The analysis reveals evidence of existing or~potential stability problems; <br /> 4.2 In the Qualified Registered Professional's opinion, site conditions such as <br /> spring, seeps, depth of soil to bedrock, variations in soil types, or a combination of these <br /> conditions will impact the design parameters of the structure. <br /> If either of the circumstances listed in 4.1 or 4.2 exist, a Leve13 analysis must be submitted. <br /> R-9.6710-H Level 3 -Investigation Methods and Report Requirements. <br /> 1. Geologic Investigation with Geotechnical Design Details. A Leve13 investigation <br /> shall consist of: <br /> 1.1 The information required for a Level 1 and Leve12 investigation; <br /> 1.2 Site-specific geotechnical design of facilities such as, but not limited to, <br /> streets, foundations, utilities, retaining walls and structures due to topographic and geologic <br /> constraints; <br /> 1.3 Results of test borings and/or test pits and field strength tests such as Standard <br /> Penetration Test (SPT) or other field tests that measure the strength and competency of the <br /> soils. Field measurements of aquifer characteristics using pumping tests or slug tests are <br /> acceptable. Undisturbed samples of cohesive soils may be taken for laboratory tests such as <br /> unconfined compression, triaxial compression, direct shear, consolidation, and/or <br /> permeability. <br /> 2. Investigation Methods. <br /> 2.1 Methods for Making Test Borings or Test Pits. Excavations for undisturbed <br /> sampling and/or field testing ofsoils/rock must consist of borings or pits, made by hand or <br /> by machine. Any device, such as a backhoe, excavator, auger boring, wash boring, or mud- <br /> rotary boring that will permit excavation to the desired sampling or testing depth and will <br /> permit undisturbed sampling using thin-wall tubing or core barrel, as appropriate, and/or <br /> field testing of the soil or rock is acceptable. <br /> <br /> Administrative Order - 18 v, <br /> <br /> R:W DM[NORD\RULES\03geotech2ao.wpd(03/26/03) <br /> <br />