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I <br /> POLICE HQ—MASONRY CLEANING AND REPAIR APRIL 15,2016 <br /> be discharged into sanitary sewers or held on the ground for percolation. A <br /> recirculation system for detergent washing is recommended. Steam cleaning <br /> I <br /> 7. units shall provide a device for oil separation. <br /> OIL AND CHEMICAL STORAGE AND HANDLING: Handling and storage of oil and <br /> chemicals shall not take place adjacent to waterways. The storage shall be made <br /> in dike tanks and barrels with drip pans provided under the dispensing area. <br /> Shut-off and lock valves shall be provided on tanks. Shut-off nozzles shall be <br /> provided on hoses. Oil and chemicals shall be dispensed only during daylight <br /> hours unless the dispensing area is properly lighted. Fencing shall be provided <br /> around oil storage. Locks shall be provided on valves,pumps, and tanks. <br /> 8. SEWAGE: If a sanitary Sewer line is encountered and repair or relocation work is <br /> required,the Contractor shall provide blocking and sealing of the sanitary Sewer <br /> line. Sanitary Sewer flow shall be pumped out,collected,and conveyed or <br /> pumped directly to a sanitary Sewer system manhole for discharge. The existing <br /> Sewers shall be maintained by the Contractor without interruption of service by <br /> the use of temporary Sewer bypasses. In addition,the excavated materials <br /> adjacent to and around a rupture of a sanitary or combined Sewer pipeline shall <br /> be removed to a disposal site. Equipment and tools in contact with the above <br /> materials shall be washed by pressure water lines and the attendant wash water <br /> discharged into a sanitary Sewer line for transmission to a sewage treatment <br /> plant. <br /> 9. SAW CUTTING,PLANNING,AND GRINDING BYPRODUCTS: The Contractor shall <br /> take special precautions to ensure that no concrete, asphalt,concrete by-products, <br /> or asphalt byproducts from,or used in,the saw cutting,grinding, or planning of <br /> asphalt cement or cement concrete pavements, sidewalks,curbs,etc. are <br /> discharged into any Storm Drain or surface water system. Such discharge is <br /> prohibited by the Department of Ecology. In as much as saw cutting by-products <br /> increase the pH of the wastewater, filtering prior to discharge will NOT be <br /> acceptable. Impervious surfaces contaminated with sediment and grit from saw <br /> cutting,planning or pulverizing operations shall be cleaned by sweepers to <br /> prevent contaminants from entering the Storm Drainage system or surface waters <br /> when it rains. <br /> 10. GUTTERS AND OTHER SURFACE DRAINAGE CHANNELS: All construction, <br /> demolition,and land clearing waste and byproduct entering gutters and other <br /> pavement surface drainage channels shall be prevented from entering any inlet, <br /> catch basin,or other drainage structure or feature. Material shall be removed <br /> from drainage channels on a regular basis. If necessary,temporary filters or filter <br /> materials shall be placed in drainage channels to prevent the passage of material. <br /> 1.09 AIR QUALITY <br /> A. The Contractor shall identify those portions of the Work that have the greatest potential <br /> to impact air quality. <br /> 1. Specific means and methods to prevent and/or control impacts to air shall be <br /> described for each such portion of work. <br /> B. The Contractor shall not cause or allow the discharge of particulate matter,the emission <br /> of any air contaminants or odor bearing gases in excess of the limits specified under <br /> Regulation I of the Puget Sound Clean Air Agency,Article 9-Emission Standards. <br /> TEMPORARY CONTROLS 01 5700 - 5 <br /> I <br />