(a) 
The standards set forth herein shall only apply to gravity lines and are not intended for pressure mains. Pressure mains shall meet ASTM specifications and/or specifications established by the DPW, whichever are more restrictive.
(b) 
All materials and workmanship regarding installation of any sewers connected to the public sewer shall be as specified by this title.
(c) 
Connection shall be made at the point designated by the DPW and all plumbing outlets shall be connected to the sanitary sewer.
(Ord. 930 § 2, 1980)
(a) 
All side sewers shall be laid at not less than a two percent grade (two feet per 100 feet), and not more than a 200 percent (two feet vertical; one foot horizontal) grade. Side sewers shall not be laid within 30 inches from any foundation wall of any building, or, if there is no foundation wall, within 30 inches from the outer lines of any footings, pilings or building supports.
(b) 
Minimum cover shall be:
(1) 
Not less than 60 inches at the curbline;
(2) 
Not less than 36 inches at the property line; and
(3) 
Not less than 18 inches within private property.
(c) 
Any side sewer laid generally parallel to the curbline shall have not less than 60 inches of cover and all cover measurements shall be based on the established grade or on existing improvements.
(d) 
When, at the discretion of the DPW, it is determined for certain conditions that the requirements of this section cannot be met, the DPW shall have the authority to adjust them accordingly.
(Ord. 930 § 2, 1980)
A side sewer shall be laid at uniform grade and in straight alignment to the extent possible. Changes in direction shall be made only with curved pipe or with no greater than 45-degree bends. The connection to the plumbing outlet and combination bends of 90 degrees shall include a cleanout. All pipe shall be laid on a firm earth bedding containing no material larger than one inch. If the trench bottom contains mud or water, the pipe shall be laid on a crushed base course as approved by the DWP. Backfill around the pipe and to a point four inches above shall be selected, trench-side material hand placed and hand tamped, with no material larger than one inch. See also KMC § 12.08.135.
(Ord. 930 § 2, 1980)
(a) 
A minimum of a four-inch-diameter side sewer shall be required for any single-family residence.
(b) 
A maximum of four houses may be connected to a common side sewer provided the side sewer is not less than six inches in diameter and cleanouts are installed at all locations where fittings are used, including the connection to the house. See KMC § 12.08.125 if easement required.
(c) 
More than four houses may be connected to a side sewer provided the side sewer is not less than eight inches in diameter, is equipped with manholes at the ends and is installed with both vertical and horizontal alignment. See KMC § 12.08.125 if easement required.
(d) 
For apartment houses containing up to five apartments a minimum four-inch outside side sewer shall be required. If two four-inch plumbing outlets join, a minimum six-inch pipe sewer and six-inch fittings must be used from and including the junction.
(e) 
When from six to 29 apartment units are involved, a minimum six-inch side sewer shall be required. Where there exists no possibility of the side sewer being extended beyond 400 feet, a six-inch cleanout may be substituted at the end of the side sewer.
(f) 
When from 30 to 68 apartment units are involved, a minimum eight-inch side sewer shall be required. See KMC § 12.08.125 if easement required.
(g) 
When more than 68 apartment units are involved, a special study of each case will be made by the DPW who shall then set the requirements.
(Ord. 930 § 2, 1980)
No six-inch side sewer shall be greater than 200 feet in length, except in such cases as may be specifically approved by the DPW. The city may require any side sewer greater than 200 feet in length to be at least eight inches in diameter with manholes on ends and at intervals of not more than 400 feet. Such lines shall be installed with both vertical and horizontal alignment.
(Ord. 930 § 2, 1980)
Trailer houses and mobile homes shall have a flush connection accessibility with a screwdown cap. Each mobile home must have a "p" or "s" trap and whenever more than four mobile homes are connected to the same line, the city shall require a vent stack open to the atmosphere 10 feet above the existing grade.
(Ord. 930 § 2, 1980)
A cleanout is required whenever more than a 45-degree bend is used and also immediately outside the house or structure in situations where the city deems such necessary.
(Ord. 930 § 2, 1980)
The side sewer or stub shall not be run or laid in the same trench with water service pipes or any underground water pipes unless both of the following requirements are met:
(a) 
The bottom of the water piping at all points shall be at least 12 inches above the top of the sewer piping.
(b) 
The water piping shall rest on a solid shelf at one side of the common trench.
(Ord. 930 § 2, 1980)
The city shall not issue a permit for a common side sewer line to two or more homes on a six-inch line unless a properly executed grant of easement to the city in such form as approved by the city has been delivered to the city accompanied by applicable recording fees. Upon acceptance, the city will record all executed easements.
(Ord. 930 § 2, 1980)
The side sewer requirements set forth in this title are minimum requirements intended to apply under usual and ordinary conditions. These requirements may be increased in unusual situations at the discretion of the DPW when he deems such to be in the public interest.
(Ord. 930 § 2, 1980)