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WSB and Associates, Inc. Proposal BL-08-02387D Apri1 Z1, 20�9 Page 2 Scope of Services We will pro�ide tethnirians or engineer5 — working under the direttion of a Professional �ngineer — to perfarm our observation and testing services. Observation and testing ser�ices wil! be perfarmed on an on-call, as-needed basis as requested and scheduled by you or the proje�t contractars. We have re�iewed the available project information and propose to: ° Observe and e�aluate the suita�ility of geologic materials exposed in the botto�'+s of road and utility excavations or surfaces for fifl and/or structure/road support. a Observe and eval�tate ti�e suitability of prospective fill materials. • Measure the in-piace dry density, moisture content and relative compaction of fiil placed for pa�ement and/or utility support, and of utility back.fill for compliance with the project documents — this task includes �erforming �aboratory Proctor tests to provide maximum dry densities frarr� which the relative eompaction of fill can be determined, as welE as the use of a nuclear density gauge ta measure in-place dry densities and moisture contents. = Observe proaf-rolls of paveinent subgrades to e�aluate subgrade strength and the ability of the subgrades to support pavement materials. ■ 5ampl.e and test aggregate base and �ituminous �a��ment materials for tompEiance with the project documents --this task intludes laboratory gradatian and Proctor testing of aggregate base materia! and Rice specific gravity, Marshal4 density, asphalt content and extractec4 aggregate gradation tests of the bituminous. ■ MeasUre the temperature of the bituminous pavement at initial laydown and durirtg rof�ing for compliance with the project documents, and to help the contractor de�elop a roll pattern for effective compaciion. ■ Measure the in-place density of the fresh bituminous with a nuciear density gauge to help the contractor de�eiop a rall patter� for effective compa�tinn. ■ Measure the thickness and density a# the compacted bituminous pavement by the core method for complianc� with tf�e project documents — this ta�k inc�udes coring equipment rentai. ■ Sample and test fresh contrete a5sociated with curb-anci-gutter and sidewalks €or co�npliance with the project docu.ments, and cast test eylinders for laboraiory campressive strength testing, We assume that we will be able to appropriately dispo5e of excess concrete (and associated wash water) on site at no additional east to us, � Measure and report the compressive strength of the co�crete test tylinders fo� compliance with the project documents. � �� II�T�� E�