2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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2012 Ocean Ranger Guidebook 3-7-12 (b) All potable water tanks shall be independent of any tanks holding nonpotable water or other liquid. All potable water tanks shall be independent of the shell of the ship unless (1) the bottom of the tank is at least 2 feet above the maximum load water line, (2) the seams in the shell are continuously welded, and (3) there are no rivets in that part of the shell which forms a side of a tank. A deck may be used as the top of a tank provided there are no access or inspection openings or rivets therein, and the seams are continuously welded. No toilet or urinal shall be installed immediately above that part of the deck which forms the top of a tank. All potable water tanks shall be located at a sufficient height above the bilge to allow for draining and to prevent submergence in bilge water. (c) Each potable water tank shall be provided with a means of drainage and, if it is equipped with a manhole, overflow, vent, or a device for measuring depth of water, provision shall be made to prevent entrance into the tank of any contaminating substance. No deck or sanitary drain or pipe carrying any nonpotable water or liquid shall be permitted to pass through the tank. (d) Tanks and piping shall bear clear marks of identification. (e) There shall be no backflow or cross connection between potable water systems and any other systems. Pipes and fittings conveying potable water to any fixture, apparatus, or equipment shall be installed in such way that backflow will be prevented. Waste pipes from any part of the potable water system, including treatment devices, discharging to a drain, shall be suitably protected against backflow. (f) Water systems shall be cleaned, disinfected, and flushed whenever the Commissioner of Food and Drugs shall find such treatment necessary to prevent the introduction, transmission, or spread of communicable diseases. Sec. 1250.83 Storage of water prior to treatment. The following requirements with respect to the storage of water on vessels prior to treatment must be met in order to obtain approval of treatment facilities under Sec. 1240.90 of this chapter. (a) The tank, whether independent or formed by the skin of the ship, deck, tank top, or partitions common with other tanks, shall be free of apparent leakage. (b) No sanitary drain shall pass through the tank. (c) The tank shall be adequately protected against both the backflow and discharge into it of bilge or highly contaminated water. Sec. 1250.84 Water in galleys and medical care spaces. (a) Potable water, hot and cold, shall be available in the galley and pantry except that, when potable water storage is inadequate, nonpotable water may be piped to the galley for deck washing and in connection with garbage disposal. Any tap discharging nonpotable water which is installed for deck washing purposes shall not be more than 18 inches above the deck and shall be distinctly marked ``For deck washing only''. (b) In the case of existing vessels on which heat treated wash water has been used for the washing of utensils prior to the effective date of the regulations in this part, such water may continue to be so used provided controls are employed to insure the heating of all water to at least 170 deg.F before discharge from the heater. (c) Potable water, hot and cold, shall be available in medical care spaces for hand-washing and for medical care purposes excluding hydrotherapy. Sec. 1250.85 Drinking fountains and coolers; ice; constant temperature bottles. (a) Drinking fountains and coolers shall be constructed of impervious, nonoxidizing material, and shall be so designed and constructed as to be easily cleaned. The jet of a drinking fountain shall be slanting and the orifice of the jet shall be protected by a guard in such a manner as to prevent contamination thereof by droppings from the mouth. The orifice of such a jet shall be located a sufficient distance above the rim of the basin to prevent backflow. (b) Ice shall not be permitted to come in contact with water in coolers or constant temperature bottles. 180
2012 Ocean Ranger Guidebook 3-7-12 (c) Constant temperature bottles and other containers used for storing or dispensing potable water shall be kept clean at all times and shall be subjected to effective bactericidal treatment after each occupancy of the space served and at intervals not exceeding one week. Sec. 1250.86 Water for making ice. Only potable water shall be piped into a freezer for making ice for drinking and culinary purposes. Job Aid Item: 6.1.b Text: Potable Water hook ups, in accordance with supplier (municipality or port)/ vessel procedures. 21 CFR 1240.86; 21 CFR 1250.82 Background: Any connection to a municipal water system is a potential source of contamination. Suppliers and vessels have procedures to minimize this risk. What to check for: Check that connection procedures are followed. Citations: 21 CFR 1240.86 Protection of pier water system. No vessel engaged in interstate traffic shall make a connection between its nonpotable water system and any pier potable water system unless provisions are made to prevent backflow from the vessel to the pier. See item 6.1.a for other applicable citations. Job Aid Item: 6.1.c Text: Potable hose is dedicated for potable water and connections are sanitized / capped before use? (18 AAC 80.015) Background: Contamination of potable water could occur from hoses or caps used on those hoses. If connected to a municipal system, this could contaminate that system as well. CDC recommends connections sanitized with 100 mg/L chlorine and flushing hoses. What to check for: Check that potable water hoses are dedicated- these could be labeled, properly stored away from other hoses, etc. Check that connections are sanitized and capped. Check that hoses are flushed prior to connection and drained after use. Hoses should be stored so that dirt and liquids cannot collect inside. Citation: 18 AAC 80.015. Well protection, source water protection, and well decommissioning. (a) A person may not (1) cause pollution or contamination to enter a public water system; or (2) create or maintain a condition that has a significant potential to cause or allow the pollution or contamination of a public water system. Job Aid Item: 6.1.d Text: Potable hose properly stored and used ‘free of the ground’? (18 AAC 80.015) 181
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