activated sludge system as a means of storage are not acceptable. Pump suction and discharge openings shall be at least 4 inches (100 mm) adult dating in Henderson in diameter. Special sequencing controls shall be provided to start pump motors unless the generating equipment has capacity to start all pumps simultaneously with auxiliary equipment operating. Large quantities of chlorine, such as are contained in ton cylinders and tank cars, can present a considerable hazard to plant personnel and to the surrounding area should such containers develop leaks. . 84.4 Gas Collection, Piping, and Appurtenances.41 General All portions of the gas system including the space above the tank liquor, storage facilities, and piping shall be so designed that under all normal operating conditions, including sludge withdrawal, the gas will be maintained under pressure. . sewers IN relation TO streams.1 Location of Sewers in Streams.11 Cover Depth The top of all sewers entering or crossing streams shall be at a sufficient depth below the natural bottom of the stream bed to protect the sewer line. . Diffuser systems shall be capable of providing for 200 percent of the designed average day oxygen demand. . Valves shall be capable of withstanding normal pressure and water hammer. Great Lakes-Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers. A flight of stairs shall consist of not more than a 12-foot (3.7 m) continuous rise without a platform. For less complicated laboratory needs bench-top working surface should occupy at least 35 percent of the total laboratory floor space. .
93.435 Point of Discharge All primary cells shall have individual influent lines which terminate approximately at the midpoint of the width and at approximately two-thirds the length away from the outlet structure so as to minimize short-circuiting. A space sex dating i norge should be provided for signature and/or approval stamp of the appropriate reviewing authority. 54.22 Unit Bypass During Construction Unit bypassing during construction shall be in accordance with the requirements in Paragraphs.28(i.15 and Section. 20.14 Design Criteria Design criteria shall be included with all plans and specifications and a hydraulic profile shall be included for all wastewater treatment facilities. . Flow measurement facilities for lagoon systems shall not be less than elapsed time meters used in conjunction with pumping rate tests or shall be calibrated weirs. .