tailieunhanh - Pocket Guide on Industrial Automation For Engineers and Technicians

All ground water sources should be located a safe distance from sources of contamination. In cases where sources are severely limited; however, a ground water aquifer that might become contaminated may be considered for a water supply, if treatment is provided. After a decision has been made to locate a water source in an area, it is necessary to determine the distance the source should be placed from the origin of contamination and the direction of water movement. A determination of a safe distance is based on specific local factors described in the section on "Sanitary Survey." Because many factors affect the determination of "safe" distances between ground water supplies and sources of pollution, it. | 09-Aug-07 12 14 PM Page 1 IDC Technologies Worldwide Offices Australia West Coast Office 1031 Wellington Street West Perth WA 6005 PO Box 1093 West Perth WA 6872 Tel 08 9321 1702 Fax 08 9321 2891 East Coast Office PO Box 1750 North Sydney NSW 2059 Tel 02 9957 2706 Fax 02 9955 4468 Canada Suite 402 814 Richards Street Vancouver BC V6B 3A7 Tel 604 244 9221 Fax 604 682 3139 Toll Free Tel 1800 324 4244 Toll Free Fax 1800 434 4045 India 133 4th Street Kumaran Colony Vadapalani Chennai 600026 Tel 91 444 208 9353 Ireland PO Box 8069 Shankill Co Dublin Tel 01 473 3190 Fax 01 473 3191 Malaysia 26 Jalan Kota Raja E27 E Hicom Town Center Seksyen 27 40400 Shah Alam Selangor Tel 03 5192 3800 Fax 03 5192 3801 New Zealand Parkview Towers 28 Davies Avenue Manukau City PO Box 76-142 Manukau City Tel 09 263 4759 Fax 09 262 2304 Poland ul. Krakowska 50 30-083 Balice Krakow Tel 48 12 6304 746 Fax 48 6304 750 Singapore 100 Eu Tong Sen Street 04-11 Pearl s Centre Singapore 059812 Tel 65 6224 6298 Fax 65 6224 7922 South Africa 68 Pretorius Street President Park Midrand PO Box 389 Halfway House 1685 Tel 011 805 3904 Fax 011 312 2150 Toll Free Tel 0800 114 160 United Arab Emirates M1 Floor Khalifa Street Al Za abi Building Abu Dhabi UAE Tel 971 2 676 4470 Fax 971 2 676 4490 United Kingdom Suite 18 Fitzroy House Lynwood Drive Worcester Park Surrey KT4 7AT Tel 020 8335 4014 Fax 020 8335 4120 United States 7101 Highway 71 West 200 Austin TX 78735 Tel 512 288 8525 Fax 512 288 8521 Toll Free Tel 1800 324 4244 Toll Free Fax 1800 434 4045 INDUSTRIAL AUTOMATION IDC Engineering Pocket Guide 1st Edition dc@ 6 VOLUME 6 Best Practice in Industrial Data Communications Advanced Process Control Automatic Safety Systems Financial Management Pocket Guide on Industrial Automation For Engineers and Technicians Rev Edited by Srinivas Medida IDC ECHNOLOGIES Technology Training that Works 2 Industrial Automation Pocket Book Chapter 1. .