TITLE 35: ENVIRONMENTAL PROTECTION
                                         
    SUBTITLE C: WATER POLLUTION
                                         
    CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
                                         
     
    PART 374
    DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS
     
                                         
    SUBPART A: PERMITS
     
    Section
    374.101 Introduction
    374.102 Conventional System Preference
    374.103 System Pressure Maintenance
    374.104 Sludge Disposal
    374.105 Sludge Disposal (Renumbered)
    374.106 Pressure System Failure (Repealed)
     
    SUBPART B: DESIGN CRITERIA
     
    Section
    374.201 Duplex Pumps
    374.202 Minimum Size
    374.203 Valves
    374.204 Non-corrosive Equipment
    374.205 Influent Pumping
    374.206 Pump Vaults
    374.207 Marked Sewer Lines
    374.208 Alarm Systems
     
    AUTHORITY: Authorized by and implementing Section 13(a)(3) of the
    Environmental Protection Act [415 ILCS 5/13(a)(3)].
     
    SOURCE: Filed with the Secretary of State December 20, 1977, effective
    December 20, 1977; codified at 6 Ill. Reg. 13019, effective October 12,
    1982; amended at 21 Ill. Reg. 12439, effective August 28, 1997.
     
    SUBPART A: PERMITS
                                         
     
    <BSection 374.101 Introduction>>
     
    These design criteria are to be used by the Illinois Environmental
    Protection Agency in reviewing 35 Ill. Adm. Code 309, Subpart B permit
    applications for pressure sewer systems including grinder pump systems and
    septic tank effluent pumping (STEP) systems.
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    <BSection 374.102 Conventional System Preference>>
     
    If possible, the development proposed shall be served by a conventional
    sewer system. A conventional sewer system is defined as gravity sewers or
    a conventionally designed pumping station.
     
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    <BSection 374.103 System Pressure Maintenance>>
     
    The owner or operator of a pressure sewer system shall provide a method of
    inspection or authorization to assure that users of the system maintain the
    original design operating pressures of the system when repairing, modifying
    or replacing any of the pumping equipment on the user's premises.
     
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    <BSection 374.104 Sludge Disposal>>
     
    Permits for STEP systems shall not be issued unless the applicant provides
    satisfactory evidence that adequate facilities are available for the
    pumping and disposal of septic tank sludge.
     
    (Source: Section 374.104 repealed and new Section 374.104 renumbered
    from Section 374.105 at 21 Ill. Reg.12439, effective August 28,
    1997)
     
    <BSection 374.105 Sludge Disposal (Renumbered)>>
     
    (Source: Section 374.105 renumbered to Section 374.104 at 21 Ill.
    Reg. 12439, effective August 28, 1997)
     
    <BSection 374.106 Pressure System Failure (Repealed)>>
     
    (Source: Repealed at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    SUBPART B: DESIGN CRITERIA
                                         
     
    <BSection 374.201 Duplex Pumps>>
     
    If grinder pumps are serving more than one building, duplex pumping units
    shall be required. If the pumps are to be installed for individual
    buildings, a single pumping unit may be used.
     
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    <BSection 374.202 Minimum Size>>
     
    The grinder pump "wet well" should have a minimum size of 150 gallons.
     
    <BSection 374.203 Valves>>
     
    Valve arrangements and connection shall be made so as to allow quick
    removal and replacement of equipment for maintenance purposes.
     
    <BSection 374.204 Non-corrosive Equipment>>
     
    Non-corrosive or corrosion-resistant equipment shall be specified for STEP
    systems.
     
    <BSection 374.205 Influent Pumping>>
     
    In the STEP systems, pump well influent piping should enter at the bottom
    of the well to prevent cascading of septic effluent in order to minimize
    both odor and corrosion.
     
    <BSection 374.206 Pump Vaults>>
     
    All pump vaults shall be equipped with locking covers.
     
    <BSection 374.207 Marked Sewer Lines>>
     
    Where polyvinyl chloride (PVC) pressure mains are to be installed in the
    vicinity of similar water supply lines, the sewer line should be clearly
    marked to prevent possible future cross-connections.
     
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
    <BSection 374.208 Alarm Systems>>
     
    An alarm system shall be provided in the home where grinder units are
    installed in the basement to alert the home owner in case of pump
    malfunction. A visual alarm system shall be provided for those pumping
    units installed in a separate pumping vault outside of the home.
     
    (Source: Amended at 21 Ill. Reg. 12439, effective August 28, 1997)
     
     

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