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§ 153.174 DISINFECTION OF WATERMAINS.
   (A)   Disinfection of all potable watermains shall be conducted in general accordance with Disinfecting Water Mains, AWWA Standards and applicable state statues, codes and administrative rules. The subdivider shall be responsible for and pay all costs associated with watermain disinfection. Satisfactory disinfection is demonstrated when two consecutive water samples collected from the completed project at least 24 hours apart indicated no bacterial growths as measured by the membrane filter technique or no tubes positive as measured by the presumptive test, fermentation tube method.
   (B)   All new watermains shall be satisfactorily disinfected prior to use. All new community water supplies shall collect two consecutive representative samples at least 24 hours apart and receive satisfactory results from the analyses before an operating permit will be issued.
   (C)   The requirement for collecting two consecutive samples may be modified for watermain construction projects at existing community water supplies practicing chlorination in accordance with standards and applicable state statutes, codes and administrative rules. Water supplies practicing adequate chlorination are required to collect only one satisfactory sample set before issuance of the operating permit provided adequate chlorine residual is present at the point of connection.
   (D)   Adequate chlorine residuals exist in a distribution system when there is a minimum on 0.2 mg/l free chlorine residual for water supplies practicing free chlorination of .05 mg/l combined chlorine residual for water supplies practicing combined chlorination. Projects in these supplies shall be considered satisfactorily disinfected if one water sample set indicates no bacteria.
   (E)   If the analyses indicate the presence of contamination, resampling at the sampling point indication contamination is required and results pursuant to the requirement of this section shall be obtained.
   (F)   Analyses of these samples shall be performed by an agency laboratory or another certified laboratory. The operating permit application shall be sent to the Division of Public Water Supplies Permit Section at the same time as the water samples are sent to the agency laboratory. The laboratory report sheets shall be submitted with the completed operating permit application if another certified laboratory is used.
(Ord. 97-7, passed 7-1-1997, § 5.17)
SANITARY SEWER SYSTEM
§ 153.185 GENERAL.
   (A)   No plat of any subdivisions shall be approved by the Board unless the subdivider provides for construction of a sanitary sewer system adequate to serve the needs of the entire subdivision when the same is fully developed. The location and design of said sanitary sewer system shall be reviewed by the Village Engineer and approved by the Illinois Environmental Protection Agency (IEPA). This requirement shall not apply to any new subdivision which cannot be provided with sanitary sewer service.
   (B)   The adequacy of the existing sanitary sewers to which the proposed development is to outlet into must first be determined by the subdivider. If the existing sewers are not adequate, it shall be the subdivider’s responsibility to find an outlet for the sanitary sewers. This work shall be done in cooperation within the Village Engineer and the village’s Sewer and Water Committee. Capacity of sanitary sewers shall be determined utilizing IEPA regulatory requirements.
   (C)   All design calculations must be submitted to the Village Engineer for review.
   (D)   (1)   Where the subdivider can show by cost estimates that it is not economical to connect to public sewers (taking into account the cost of installing individual on-site wastewater systems and their maintenance costs), he or she shall furnish percolation and other test results to indicate that the lots are of adequate size for proper sanitary waste disposal. This information shall be prepared by a licensed professional engineer.
      (2)   The area used for seepage fields shall not be under any proposed driveways, parking areas, buildings, or on public property or within public easements. No seepage field shall be connected to any storm drainage facility. Discharges from individual on-site treatment units shall not be directed above ground surface. All private sewage disposal systems shall be constructed in accordance with the State Private Sewage Disposal Licensing Act, being 225 ILCS 225/1 et seq. and Code of the State Department of Public Health, being 77 Ill. Admin. Code § 905, latest revision thereof.
   (E)   All permits required must be obtained by the subdivider (i.e., an IEPA construction and operation permit). Permit application forms shall be reviewed by the Village Engineer before being submitted to the IEPA.
   (F)   All sanitary sewer work shall be done in accordance with the regulations and standards of the IEPA and the provisions of Title V, unless more stringent requirements are stated herein.
(Ord. 97-7, passed 7-1-1997, § 5.18)
§ 153.186 DESIGN.
   (A)   Mainline sanitary sewers shall be a minimum of eight inches in diameter.
   (B)   Maximum distance between manholes shall be 350 feet.
   (C)   Manholes shall be at least four feet in diameter, constructed of precast reinforced concrete units in accordance with the attached standard details, and shall have gasketed joints.
   (D)   All main sanitary sewer lines shall be terminated with a manhole; this requirement may be waived for sewer lines less than 150 feet in length upon authorization by the Village Engineer and when a cleanout is constructed at the end of the sewer line.
   (E)   Each lot shall be provided with a wye connection located near the center of the lot (with pancake plug). All service lines and wyes shall be constructed water-tight.
   (F)   No service lines shall be connected to mainline manholes, except at the last upstream manhole of an individual sewer.
   (G)   Any service line stub which is seven feet or greater from the finished surface shall be provided with a riser to bring the service within seven feet of the surface; all such service wyes shall be encased with six inches of concrete (with pancake plug).
   (H)   Drop connections for service lines at manholes will not be allowed.
   (I)   Back lot line sanitary sewer services shall be provided with manholes at all street crossings.
   (J)   The minimum design velocity for sanitary sewer mains shall be two feet per second, based upon Manning’s formula using an “n” value of 0.013. The following minimum slopes shall be provided; however, slopes greater than these are desirable:
Sewer size
Minimum slope in ft. per 100 ft.
Flow, mgd
Sewer size
Minimum slope in ft. per 100 ft.
Flow, mgd
8 inches
0.40
0.49
10 inches
0.28
0.75
12 inches
0.22
1.07
15 inches
0.15
1.61
18 inches
0.12
2.35
21 inches
0.10
3.23
24 inches
0.08
4.13
 
   (K)   (1)   Sanitary sewer service lines shall have a minimum diameter of six inches and a minimum slope of one-eighth of an inch per foot, and shall be extended from the mainline sewer to at least five feet beyond the property line.
      (2)   Building sewers (four-inch diameter minimum) from the buildings to the service sewer connection shall be laid at a minimum slope of one- quarter of an inch per foot.
   (L)   The openings through which pipes enter the manhole structure shall be gasketed and shall be completely and firmly filled with non-shrink grout.
(Ord. 97-7, passed 7-1-1997, § 5.18)
§ 153.187 MATERIALS.
   (A)   Materials for mainline sewers shall be:
      (1)   Extra Strength Vitrified Clay Pipe (ESVCP) (for mainline sewers 12 inches in diameter and less) generally conforming to ASTM Standard C-700. The joints for the pipe and fittings shall consist of a PVC ball or collar securely fastened at the factory on the bell end of the pipe in such a manner as to be water- and air-tight, and a polyurethane compression sealing element securely fastened at the factory on the spigot end of the pipe. The joints shall generally conform to ASTM Standard C-425. The material in the PVC bell and collar shall generally conform to the requirements of ASTM Standard D-1784. Pipe with clay bells will not be allowed;
      (2)   Polyvinyl chloride (PVC) pipe (for mainline sewers up to 15 inches in diameter) generally conforming to ASTM Standard D-3034, type PSM, with minimum wall thickness standard dimension ratio (SDR) of 26 and push-on flexible elastomeric seal joints conforming to ASTM Standard D-3212; Polyvinyl chloride (PVC) pipe (for mainline sewers 18 through 36 inches in diameter) generally conforming to ASTM Standard F-679;
      (3)   Ductile-iron pipe (refer to the requirements of § 153.171(B)(1); or
      (4)   Reinforced concrete culvert pipe, conforming to ASTM Standard C-76, may be used for mainline sewers greater than 12 inches in diameter. The specific class of pipe used (I through V) shall be in accordance with the table in § 550.03 of the Standard Specifications for Road and Bridge Construction, IDOT. The pipe shall be made to accommodate rubber gasket joints in accordance with ASTM Standard C-443. The interior of concrete pipe shall be coated with a material that is non-reactive with sewer gas or any other material allowed in the waste stream.
   (B)   Materials for service sewers (six inches in diameter) and building sewers (four inches in diameter) shall be:
      (1)   Extra Strength Vitrified Clay Pipe (ESVCP) generally conforming to ASTM Standard C-700. The joints for the pipe and fittings shall consist of a PVC ball or collar securely fastened at the factory on the bell end of the pipe in such a manner as to be water- and air-tight, and a polyurethane compression sealing element securely fastened at the factory on the spigot end of the pipe. The joints shall generally conform to ASTM Standard C-425. The material in the PVC bell and collar shall generally conform to the requirements of ASTM Standard D-1784. Pipe with clay bells will not be allowed;
      (2)   Polyvinyl chloride (PVC) pipe (four through 15 inches in diameter) generally conforming to ASTM Standard D-3034, type PSM, with minimum wall thickness standard dimension ratio (SDR) of 26 and push-on flexible elastomeric seal joints conforming to ASTM Standard D-3212;
      (3)   Ductile-iron pipe (refer to the requirements of § 153.166(B)(1)); or
      (4)   Acrylonitrile-butadiene-styrene (ABS) composite pipe (six through 15 inches in diameter) generally conforming to ASTM Standard D-2680 with flexible elastomeric seal joints conforming to ASTM Standard D-3212; ABS solid wall pipe (four and six inches in diameter) generally conforming to ASTM Standard D-2751, with a minimum wall thickness standard dimension ratio of 23.5 and push-on flexible elastomeric seal joints conforming to ASTM Standard D-3212.
   (C)   All forcemain pipe shall be constructed of ductile-iron pipe or pressure class plastic pipe as defined in § 153.166(B) of this chapter.
   (D)   Materials for manholes shall be:
      (1)   Leak-tight (including pipe entries) and shall be constructed according to the standard details. All manholes shall have an inside diameter as shown on the drawings. Brick manholes will not be allowed. Manholes shall be constructed of precast reinforced concrete manhole components in general conformance to ASTM Standard C-478. The use of concrete masonry units, complying with ASTM Standard C-139, for manhole barrel sections shall be subject to the authorization of the Village Engineer on an individual basis. No bitumastic materials shall be used in the construction of the manholes.
      (2)   The base shall be an eight-inch thick monolithic unit with welded wire fabric reinforcement.
      (3)   Precast barrel and cone components: manhole joints shall be compression type utilizing rubber “O” ring gaskets. The barrel thickness for four foot-diameter manholes shall be 5.75 inches (wall C); for five foot-diameter manholes, 6.75 inches (wall C); for six foot-diameter manholes, seven inches (wall B). No bitumastic will be used to seal manhole joints. Cones shall be eccentric. Pipe entry holes shall be precast in the barrel sections. Sanitary manhole pipe entries shall be water-tight compression joints utilizing rubber gaskets compatible with the pipe being used.
      (4)   Precast concrete flat tops required for manholes shall be manufactured according to the standard details of the IDOT.
      (5)   Concrete masonry units may be used for manhole construction if authorized by the Village Engineer. Masonry unit manholes shall be built with mortared joints, upon a flat base component.
      (6)   Steps shall be set into the manhole walls at the time when the manhole walls are cast. Steps shall be set at 16 inches on centers. The manhole step shall consist of a three-eights of an inch steel reinforcing rod encapsulated in polypropylene plastic. Fiberglass and cast iron steps are not allowed.
      (7)   Each manhole shall have the frame, lid, or grate as specified in this chapter or shown on the standard drawings. All closed lids shall have concealed pickholes and shall be self-sealing with rubber gasketed lids. Castings for sanitary manholes installed in streets or traveled surfaces shall be Neenah Model R-1713; or equivalent. Castings for sanitary manholes installed in yard areas (areas not expecting heavy loads) shall be Neenah Model R-1772A; or equivalent.
      (8)   All pipes connected to manholes and inlets shall be cut to fit with a concrete saw or similar saw. Breaking off pipe sections with hammers, chisels, or chains will not be allowed.
   (E)   Cleanouts shall be constructed as shown on the standard drawings, and shall include a wye fitting, piping, plug, concrete encasement, a concrete pad, and a cast iron cleanout ferrule and brass plug.
   (F)   Fittings shall be the same type of material as the pipe. All joints shall be water-tight and gas-tight. Connections between different pipe materials shall be made with a manufactured coupling.
   (G)   Sewer taps to existing sewer lines shall be constructed as required by the Village Engineer utilizing manufactured fittings and couplings, and shall be made water-tight. Sewer taps to existing sewer lines shall be inspected by the Village Maintenance Superintendent before they are encased or backfilled.
(Ord. 97-7, passed 7-1-1997, § 5.18)
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