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Concrete Curing <br /> The Contractor shall not overspray chemical curing compound. Drift shall be minimized by spraying as close to the <br /> concrete as possible. Drainage inlets shall be covered before applying curing compound. <br /> The Contractor shall minimize the use and discharge of water by using wet blankets or similar methods to maintain <br /> moisture when curing concrete. - <br /> Concrete Finishing <br /> The Contractor shall collect and dispose of water and solid waste from high-pressure water blasting. Drainage inlets <br /> within 15 m shall be covered before sandblasting. The nozzle shall be kept as close to the surface of the concrete as possible <br /> to minimize drift of dust and blast material. Blast residue may contain hazardous material. <br /> Containment structures for concrete finishing operations shall be inspected for damage before each day of use and before <br /> predicted precipitation. Liquid and solid waste shall be removed from the containment structure after each work shift. <br /> DEWATERING <br /> Dewatering shall consist of discharging accumulated storm water, ground water, or surface water from excavations or <br /> temporary containment facilities. The Contractor shall discharge water within the limits of the project. <br /> Dewatering discharge shall not cause erosion,scour,or sedimentary deposits that impact natural bedding materials. <br /> The Contractor shall conduct dewatering activities in accordance with the Field Guide for Construction Dewatering <br /> available at: <br /> http://www.dot.ca.gov/hq/construc/stormwater/manuals.htm <br /> Before dewatering the Contractor shall submit a Dewatering and Discharge Plan to the Engineer in conformance with the <br /> provisions in Section 5-1.02, "Plans and Working Drawings," of the Standard Specifications and"Water Pollution Control," <br /> of these special provisions. At a minimum,the Dewatering and Discharge Plan shall include the following: <br /> A. A title sheet and table of contents; <br /> B. A description of the dewatering and discharge operations detailing the locations, quantity of water, equipment, and <br /> discharge point; <br /> C. The estimated schedule for dewatering and discharge(begin and end dates,intermittent or continuous); <br /> D. Discharge alternatives such as dust control or percolation;and <br /> E. Visual monitoring procedures with inspection log. <br /> The Contractor shall not discharge storm water or non-storm water that has an odor, discoloration other than sediment, <br /> an oily sheen,or foam on the surface and shall notify the Engineer immediately upon discovery. <br /> If water cannot be discharged within the project limits due to site constraints it shall be disposed of in the same manner <br /> specified for material in Section 7-1.13, "Disposal of Material Outside the Highway Right of Way," of the Standard <br /> Specifications. <br /> PAYMENT <br /> The contract lump sum price paid for construction site management shall include full compensation for furnishing all <br /> labor, materials, tools, equipment, and incidentals and for doing all the work involved in spill prevention and control, <br /> material management, waste management,non-storm water management, and dewatering and identifying, sampling,testing, <br /> handling, and disposing of hazardous waste, as specified in the Standard Specifications and these special provisions, and as <br /> directed by the Engineer. <br /> 10-1.04 STREET SWEEPING <br /> Street sweeping shall be conducted where sediment is tracked from the job site onto paved roads, as described in the <br /> approved Water Pollution Control Program (WPCP) in accordance with "Water Pollution Control' of these special <br /> provisions,and as directed by the Engineer. <br /> Street sweeping shall be one of the water pollution control practices for sediment control. The WPCP shall include the <br /> use of street sweeping. Street sweeping shall be performed in accordance with Section 4, SC-7 in the Construction Site Best <br /> Management Practices Manual of the Caltrans Storm Water Quality Handbooks. <br /> The number of street sweepers shall be as designated in the approved WPCP. The Contractor shall maintain at least one <br /> sweeper on the job site at all times during the period that sweeping work is required. Sweepers shall be self-loading, <br /> motorized,and shall have spray nozzles. Sweepers may include a vacuum apparatus. <br /> Contract No. 10-OM7104 <br /> 144 <br />