Section 905.130  Human Waste Disposal

a)         General.  Privies, portable toilets, recirculation toilets, incinerator toilets, and compost toilets are approved for private sewage disposal of human wastes.  Other domestic wastes shall be disposed of in a conventional system (Section 905.30); however, the size of all components may be reduced 25 percent (except that septic tanks may not be smaller than 750 gallons).  Note:  Compost toilets may be used to dispose of other organic domestic wastes.

b)         Privy Construction.  All privies shall be constructed and maintained in accordance with the following and Appendix A:  Illustration T of this Part:

1)         Pit Construction.  The pit shall be constructed of materials and in such a manner as to be able to endure the anticipated load and use and to withstand the local environmental conditions without deteriorating. The pit shall be constructed such that there shall be access to the pit for pumping and cleaning purposes.

2)         Pit Size.  The pit shall have a minimum capacity of 50 cubic feet per seat.

3)         Floor and Seat Riser.  The floor and seat riser shall be constructed of an impervious material and in a manner to exclude insects and rodents. The seat riser shall be bonded to the floor to prevent seepage through the riser onto the floor.

4)         Seat Cover.  The seat opening shall be covered with a hinged lid which forms a tight seal.

5)         Vent.  Each pit or vault privy shall be provided with a vent to the outside that creates airflow out of the building through the vent. The vent opening shall be screened with 16 mesh screen to prevent the entry of flies and shall terminate through the roof.

6)         Maintenance and Abandonment.  When any privy is abandoned or filled to within 18 inches of the bottom of the riser, it shall be pumped by a private sewage disposal system pumping contractor.  Any abandoned privy pit shall be filled with earth.

c)         Vault Privy.  Watertight, non-metal vaults are required where privies are used in areas where the groundwater or limestone formations are within 4 feet of the bottom of the pit.  The vault shall be provided with a readily accessible cleanout which prohibits the entry of rodents, insects, and surface water.  (See Appendix A:  Illustration T of this Part.)

d)         Septic Privy.  The vault of a septic privy shall be watertight. The subsurface seepage field shall consist of a minimum of one 10 foot distribution line placed in a 2 foot wide trench constructed in accordance with Section 905.60 and Appendix A:  Illustration U of this Part.

e)         Standards for the Construction and Servicing of Non-Sewered (Portable) Toilet Systems.  A portable toilet is a self-contained unit equipped with a waste receiving holding container.  Non-sewered toilet systems shall be constructed and maintained in the following manner:

1)         Rooms, buildings or shelters housing toilets shall be of solid construction, easy to clean, providing shelter and privacy.  The toilet room shall be ventilated to the outside, with the vent covered with 16 mesh screen. Internal latches shall be provided to prevent inadvertent entry.

2)         Waste containers shall be fabricated from impervious materials such as plastic, steel, fiberglass or their equivalents.  Containers shall be watertight and capable of containing the waste.  Containers shall be adequate in size to be used by the number of persons anticipated without filling the container to more than half of its volume before regularly scheduled service.

3)         Servicing shall include removing waste from containers, recharging containers with an odor controlling solution, installing a supply of toilet tissue based on the system's intended use, and cleaning urinals and seats. Employers and event sponsors are responsible for contracting service intervals frequent enough to ensure clean, sanitary facilities.

4)         Any defective or inadequate toilet unit shall be repaired or withdrawn from service by locking or removal.

5)         Removal of waste shall be handled in a sanitary manner by means of a vacuum hose and discharge to a leak-proof tank truck.  All ports on the tank shall be valved and capped.

6)         Service trucks shall have access to the toilets to be serviced.

7)         Disposal of waste from tank trucks shall be in accordance with Section 905.170(g).

f)          Recirculating Toilets.

1)         Self-contained toilets which treat and recirculate the flushing liquid shall be constructed of an impervious, easily cleanable material and vented to the outside air through a screened pipe.  The effluent, if any, from the recirculating toilet shall discharge into a subsurface seepage field or into a disposal bag.  The subsurface seepage field shall consist of a minimum of one 10-foot long distribution line placed in a 2-foot wide trench constructed in accordance with Section 905.60. The owner of a recirculating toilet shall dispose of any residual from the unit in an approved public or private sewage disposal system.

2)         Recirculating toilets shall comply with the requirements of the National Sanitation Foundation (NSF) Standard 41 and shall bear the NSF seal.

g)         Incinerator Toilets.

1)         Incinerator toilets shall be designed and operated to provide complete incineration of the contents without production of odors. The owner of an incinerator toilet shall maintain the toilet and dispose of the contents in accordance with Section 905.170(e).

2)         Incinerator toilets shall comply with the requirements of the National Sanitation Foundation (NSF) Standard 41 and shall bear the NSF seal.

h)         Compost Toilets.

1)         Compost toilets shall be designed in accordance with the manufacturer's recommendations to serve the anticipated number of persons.  The owner of a compost toilet shall maintain the toilet and dispose of the contents in accordance with Section 905.170.

2)         Compost toilets shall comply with the requirements of the National Sanitation Foundation (NSF) Standard 41 and shall bear the NSF Seal.

(Source:  Amended at 20 Ill. Reg. 2431, effective March 15, 1996)