Disinfection of Mains Sample Clauses

Disinfection of Mains. Upon completion of a newly laid main or when repairs to existing pipes are made, the main shall be disinfected as directed by the Engineer. The main shall be flushed prior to disinfection except when the tablet method is used. After initial flushing, the hypochlorite solution shall be applied to the water main with mechanically or electrically powered chemical feed pump designed for feeding chlorine solutions. For small applications, the solution may be fed with a hand pump. In the case of mains of large diameter, water from the existing distribution system or other approved source shall be made to flow at a constant measured rate into the newly laid pipeline. The water shall receive a dose of chlorine also fed at a constant measured rate. The two rates shall be proportioned so that the concentration in the water entering the pipeline is maintained at not less than 300 mg/l. The chlorine shall be applied continuously and for a sufficient period to develop a solid column of ‘Slug’ of chlorinated water that will, as it passes along the line, expose all interior surfaces to a concentration of at least 300 mg/l for atleast 3 hours. As the chlorinated water flows through tees and crosses, related valves and hydrants shall be operated so as to disinfect the appurtenances. In the case of newly laid mains in which scrupulous cleanliness has been exercised, the tablet method can be adopted and in this method, the initial flushing is dispensed with. The calcium hypo chlorate tablets, are placed in each section of pipe and also in hydrants, hydrants branches and other appurtenances. The tablets shall be attached by an adhesive and must be at the top of the main. The main shall then be filled with water and the water shall remain in the pipe for atleast 24 hours. After the applicable retention period, the heavily chlorinated water shall be flushed from the main until the chlorine concentration in the water leaving the mains is no higher than that generally prevailing in the system or less than 1 mg/l. After final flushing and before the water main is placed in service, a sample or samples shall be collected from the end of the line and tested for bacteriological quality and shall show the absence of coliform organisms. If the initial disinfection fails to produce satisfactory samples, disinfection shall be repeated until satisfactory samples have been obtained. When the samples are satisfactory, the main may be placed in service. The contractor is expected to carry ou...
Sample 1
AutoNDA by SimpleDocs

Related to Disinfection of Mains

  • Distribution of Material A Union-designated employee will have access once per month to their worksite for the purposes of distributing Union information to other bargaining unit employees provided:

  • Distribution of Materials You will keep an accurate record of the names and addresses of all persons to whom you give copies of the Registration Statement, the Prospectus, any Preliminary Prospectus (or any amendment or supplement thereto) or any Offering Circular or any Preliminary Offering Circular and, when furnished with any subsequent amendment to the Registration Statement, any subsequent Prospectus, any subsequent Offering Circular or any memorandum outlining changes in the Registration Statement or any Prospectus or Offering Circular, you will, upon request of the Manager, promptly forward copies thereof to such persons.

  • Selection of Subcontractors, Procurement of Materials and Leasing of Equipment The contractor shall not discriminate on the grounds of race, color, religion, sex, national origin, age or disability in the selection and retention of subcontractors, including procurement of materials and leases of equipment. The contractor shall take all necessary and reasonable steps to ensure nondiscrimination in the administration of this contract.

  • Removal of Materials If you decide you would like to remove your Materials from the Service, you may provide written notice to Prime Publishing by either deleting the image through the Prime Publishing interface or by contacting Prime Publishing customer service, and Prime Publishing will remove such Materials from the Service within a reasonable period of time. 5) License for Name, Trademarks and Likenesses. You hereby grant to Prime Publishing, its Affiliates and sublicensees a nonexclusive, worldwide, royalty-free license to use all trademarks, trade names, and the names and likenesses of any individuals that appear in the Materials. You grant Prime Publishing, its Affiliates and sublicensees the right to use the name that you submit in connection with the Materials. 6) Specifications and Guidelines. You agree to submit Materials to us in accordance with all guidelines for use of the Service posted on the Prime Publishing web site or of which you are otherwise notified ("Guidelines"), as these Guidelines may be changed in the future. 7)

  • Return of Material Upon the termination of the Executive's employment under this Agreement, the Executive will promptly return to the Company all copies of information protected by Paragraph 11(a) hereof which are in his possession, custody or control, whether prepared by him or others, and the Executive agrees that he shall not retain any of same.

  • Vaccination and Inoculation (a) The Employer agrees to take all reasonable precautions, including in-service seminars, to limit the spread of infectious diseases among employees.

  • Return of Materials Upon termination or expiration of the Agreement, or upon written request of the Company, the Recipient shall promptly return to the Company all documents and other tangible materials representing the Company’s Confidential Information and all copies thereof. The Company shall notify immediately the Recipient upon discovery of any loss or unauthorized disclosure of the Confidential Information.

  • Limitations on Reverse Engineering, Decompilation, and Disassembly You may not reverse engineer, decompile, or disassemble the Software, except and only to the extent that such activity is expressly permitted by applicable law notwithstanding this limitation.

  • Storage of Materials Borrower shall cause all materials supplied for or intended to be utilized in the construction of the Improvements but not affixed to or incorporated into the Property to be stored on the Property or at such other location as may be approved by Lender in writing, with adequate safeguards to prevent loss, theft, damage or commingling with other materials not intended to be utilized in the construction of the Improvements.

  • Separation of Components The SOFTWARE PRODUCT is licensed as a single product. Its component parts may not be separated for use on more than one computer.

Time is Money Join Law Insider Premium to draft better contracts faster.