§ 14-3. Sanitary sewers.

(a)

Submittal procedure. For village approval of sanitary sewer systems, the applicant shall furnish to the village a detailed estimate of cost and three sets of the sanitary sewer plans and specifications, including the general plan, for the system on which he desires approval. The village engineers shall review the estimate and the plans for conformity to the standards set forth in this section, and certify that they are consistent with the overall utility plans of the village, after which they will return one of the three sets with appropriate comments. The applicant, after making any changes requested on the set of plans returned to him, shall then submit six sets of the revised plans to the village for final approval. The village engineer shall then review these revised plans for conformity to the comments mentioned, heretofore and, if they have been properly made, will transmit four copies to the state health department for a construction permit. An approved copy will be returned to the applicant via the state health department.

(b)

Design standards.

(1)

The following notes pertaining to the sanitary sewers shall appear on the plans:

a.

Downspouts, weeptile, footing drains, or any conduit that carries stormwater or groundwater shall not be allowed to discharge into this sewer.

b.

No sewer installation or portion thereof shall have an infiltration exceeding 500 gallons per inch diameter per mile of pipe per 24-hour period.

c.

Concrete pipe wye openings shall contain factory installed premium joint material of a type suitable and approved for use with house lead joint specified.

d.

The village standard details and specifications are incorporated as part of these standards.

e.

Wherever existing manholes or sewer pipe are to be tapped, holes shall be drilled at four inches center to center around the periphery of opening to create a plane of weakness joint before breaking the section out.

f.

For the purpose of testing infiltration, a temporary 12-inch deep sump shall be provided in the first manhole above the connection which will be filled in, after successful completion of the infiltration test, up to the standard fillet provided for the flow channel.

(2)

Prior to starting any sanitary sewer design, the applicant may make use of maps and information available at the village offices. It shall be the responsibility of the applicant to verify utility locations provided by the village.

(3)

The following table of minimum slopes for sanitary sewers shall be adhered to:

Size and Minimum Slope
10 inches	@ 0.28
12 inches	@ 0.22
15 inches	@ 0.15
18 inches	@ 0.12
21 inches	@ 0.10
24 inches	@ 0.08

 

(4)

A note or detail shall show the type of bedding upon which the sewer pipe shall be installed.

(5)

A house lead shall be installed from the lateral sewer to serve each building and shall be a minimum of six inches in diameter within the street right-of-way. House leads shall be constructed to the property line.

(6)

Sanitary sewer manholes shall be spaced with the following recommended maximums:

10 inches	= 300 feet
12 inches to 21 inches	= 350 feet
24 inches and larger	= 400 feet

 

Manholes shall be placed in the street rights-of-way. In general, sanitary sewers will not be approved in the rear lot easement. Sanitary sewer manholes shall be of precast construction with modified grooved tongue with rubber gasket or block construction utilizing standard manhole blocks.

(7)

The sewer profile shall indicate the length of run between each manhole, the size and slope of sewer between each manhole, and the class of bedding if concrete bedding is required. Top elevations of all manholes shall be indicated.

(8)

A minimum depth from top of curb (or road centerline) to the top of any sanitary sewer of 8½ feet at local control points, or a minimum of nine feet at locations where the sewer grade is parallel to the road grade shall be provided. In all cases, the sewer shall be deep enough to serve, by gravity, a standard depth basement.

(9)

Each wye or end of house connection shall have a plug with the same type of joint as the main sewer.

(10)

Allowable types of sewer pipe and joints shall be current village standards and shall be covered on the plans by note or on the profile, where applicable.

(Ord. No. 81, art. III, 5-15-1973)