Current through Register Vol. XLI, No. 50, December 13, 2024
Section 64-41-4 - Sewage Collection And Treatment (Refer to Section 9 of the Mobile Home Regulations)4.1. An adequate and safe sewerage system shall be provided in all mobile home developments for conveying and disposing of sewage from mobile homes, service buildings and other development facilities. The sewerage system shall be designed, constructed, and maintained in accordance with all applicable regulations and the requirements of the state department of health.4.2. Wherever possible, the sewerage system of a mobile home development shall be connected to a public sewerage system. If public sewers are not available within a reasonable distance of the mobile home development, adequate treatment facilities shall be installed to dispose of the sewage. Proposed sewage disposal facilities must be approved by the state department of health prior to construction with the exception that approval of septic tank, soil absorption sewage disposal systems of less than 1,500 gallons capacity shall be obtained from the local health department. The effluent from such treatment facilities shall be discharged only as permitted by the state department of health.4.3. Sewage collection and treatment systems for mobile home parks shall be designed and constructed in accordance with the publication, "Permit Procedures and Design Requirements for Small Sewage and Water Systems", regulations, specifications and instructions issued by the state department of health.4.4. Riser Pipes 4.4.1. A sewer service connection shall be provided at each mobile home lot. The sewer riser pipe should be located so that it provides a nearly vertical connection between the riser pipe and the drainage outlet of the mobile home. The ANSI Standard for Mobile Homes, A119.1-1971 specifies that the drain outlet shall be 3 inches in diameter and shall be located in the rear half section of the mobile home. The location of the sewer inlet on the stand should be as close as possible to the drain outlet on the mobile home. In order to achieve this, it is recommended that the riser pipe be located under the mobile home. A good location is at the center line of the stand and 40 feet from edge of the stand. This location will serve most of the mobile homes now being built.4.4.2. The sewer service connection utilizes a riser pipe that is at least 4 inches in diameter and that terminates at least 4 inches above the ground surface. The tubing or piping connecting the drain outlet of the mobile home and the sewer riser pipe should be noncollapsible, semirigid, and 3 inches in diameter. The line connecting the drain outlet and sewer riser shall be sloped at not less than 1/4 inch per foot. A reducer from 4 to 3 inches should connect the bell end tubing or piping. All materials used for sewer connections should be corrosion resistant, nonabsorbent and durable, with a smooth surface. No subsurface trap is necessary in the sewer riser pipe since the plumbing fixtures in mobile homes are adequately trapped and vented.4.4.3. Other types of sewer connections, such as those that utilize a threaded type connection, are acceptable if they are watertight, airtight and otherwise equivalent to the recommended connection. When the sewer connection is not in use, the bell of the riser pipe shall be capped with an airtight cap or plug. This is necessary to exclude rodents and other objects and to prevent the escape of odors.4.5. Storm Water Drainage4.5.1. The installation of a storm water drainage system will improve the drainage of any site that does not have good natural drainage. Separate systems shall be provided for storm water and sewage. The storm sewer system should be sized and designed according to standard engineering practice. Storm sewer should be laid on sufficient grade to provide a minimum velocity of 2.5 feet per second when flowing full.