A. Sanitary Sewer Specifications:
1. Pipe Material: Materials permitted for use in sanitary sewers are as follows:
a. Pipe size eight inches (8") through fifteen inches (15"):
Vitrified clay pipe (VCP) extra strength, in conformance with ASTM C-700 (latest revision). Joints for bell and spigot pipe shall be in conformance with ASTM C-425. PVC bell and collar shall be factory applied and shall conform to ASTM D-1784-69, Class 12454-B.
PVC pipe with SDR ratio of 35 in conformance with ASTM D-3034 (latest revision) with maximum length of twenty feet (20'). Joint shall be a rubber ring preset in bell groove. Joint shall withstand internal hydrostatic pressure of twenty five (25) PSI for one hour without leakage. Pipe shall be tested in accordance with ASTM D-2412 for pipe stiffness. Minimum stiffness at five percent (5%) deflection shall be forty six (46).
Double wall pipe (or truss pipe) constructed of ABS resin conforming to ASTM D-2680. Voids shall be filled with lightweight concrete. Joints shall be chemical weld sleeves.
or
Asbestos cement pipe, schedule 2400 in conformance with Federal Specification #S6-P-331A with joint (see above #1).
b. Six inch (6") Service Pipe:
VCP - See above.
PVC - See above.
ABS - Same as above, except pipe to be single wall (ASTM D-2751, SDR = 18)
AACP - See above.
2. Fittings: Fittings and joint material shall be of the same material as main-line pipe. Saddles in lieu of fittings will not be permitted in new installations.
Fittings required to join pipes of dissimilar material shall be factory fabricated for the specific use anticipated.
3. Pipe Design: The pipe shall be designed with due consideration given to ground conditions encountered and in accordance with the manufacturer's recommended procedures.
4. Manholes: Manholes shall be constructed of prefabricated concrete sections meeting the requirements of ASTM C-478. Sections shall be joined using either flexible rubber gaskets or preformed bituminous plastic gaskets. The manhole bottom shall be precast with the first riser section. Manholes shall have the pipe cast in place through the manhole or a watertight joint cast in the manhole wall to receive the pipe. All manhole lids shall be marked sanitary.
5. Service Lines: Service lines (minimum 6" inside diameter) shall be provided for each building lot and shall be extended from the main line to the property line during construction. All buildings shall have overhead sewer systems. Where necessary, riser pipes shall be installed to prevent the service line from being installed deeper than necessary.
6. Testing: Infiltration-exfiltration shall not exceed two hundred (200) gallon/inch diameter/day/mile of pipe. Testing shall be done by the Lake County Public Works Department after the service lines have been installed and capped.
Testing procedures shall be established by the Village Engineer and may include television, if deemed necessary.
7. Design Capacity of Sewers: Where the sewer to be installed is to serve an area larger than the subdivision, the sewer shall be designed and installed to serve the entire service area as designated by the Village Engineer.
B. Water Specifications:
1. Pipe Materials: Water mains shall be made of ductile iron with a cement mortar lining and a minimum working pressure of one hundred fifty (150) PSI. All fittings shall be cast iron with a cement mortar lining and a working pressure of two hundred fifty (250) PSI. Water mains will be specified by class for the appropriate laying depth. All material shall comply with the following specifications:
ASA A21.51 | Ductile cast iron (all joint types) centrifugally cast in metal molds or sand lined molds for water or other liquids. |
ASA A21.4 | Cement mortar lining for pipes and fittings. |
ASA 21.50 | Use to determine wall thickness for ductile cast iron underground pipes. |
Water main joints may be mechanical (ANSI A21.11) or push on (ANSI A21.11). Fittings shall be all bell (ANSI A21.10) with mechanical joint.
Minimum thickness shall be Class 2.
2. Design: Water mains shall be not less than six inches (6") in diameter, and shall be arranged so that the total system is looped in order to avoid dead-ends where possible. Shut-off valves shall be provided at each branch main connection and at intervals of no more than one thousand feet (1,000') apart to permit adequate sectionalization for maintenance purposes.
3. Fire Hydrants: Fire hydrants shall be installed at intervals of not more than four hundred feet (400'). All fire hydrants shall have a six inch (6") barrel and shall be provided with two (2) two and one-half inch (21/2") standard hose connections and one four and one-half inch (41/2 ") steamer connection. Each fire hydrant shall be those designated as the Village standard with a five and one-half foot (51/2') laying depth. Hydrants shall have auxiliary valve and valve box.
4. Valves and Vaults: Valves shall be non-rising stem gate valves with operating nut, designed to take full pressure on either face, furnished in full compliance with AWWA C500. All valves shall open by turning to the left. Valves shall operate at a working pressure of one hundred fifty (150) pounds per square inch and a test pressure of three hundred (300) pounds per square inch. Valves twelve inches (12") and smaller shall be housed in valve vaults with an internal diameter of forty eight inches (48"); valves over twelve inches (12") shall be housed in vaults with an internal diameter of sixty inches (60"). Valve vaults shall be precast concrete with cast iron frame and lid. Lids shall be marked with the word "water". Frames and covers shall be Village standard.
5. Water Services: All water services shall be constructed of Type K copper pipe, having a minimum internal diameter of one inch (1"). Such services shall be equipped with corporate cock, curb stops and other necessary fittings in accordance with current Village standards.
6. Design Capacity: Where the water main to be installed is to serve an area larger than the subdivision, the water main shall be designed and installed to serve the entire service area. Size shall be determined by the Village Engineer in accordance with overall Village plans.
7. Installation of Pipes: The pipe shall be installed in accordance with the manufacturer's recommended procedures and the procedures established by the AWWA.
8. Testing: Pressure testing of the water system shall be done hydraulically in accordance with the procedures established by the Village Engineer.
Bacteriological testing shall be done by the State of Illinois certified laboratory.