Indiana Administrative Code › Title 410 - INDIANA DEPARTMENT OF HEALTH › Article 6 - SANITARY ENGINEERING › Rule 5.1 - School Buildings and School Sites; Health and Safety Requirements › Section 5.1-9 - Sewage disposal

Current through July 10, 2024
Authority: IC 16-19-3-4
Affected: IC 16-41-21
Sec. 9.
(a) All
				sewage treatment facilities for school buildings and related facilities shall
				be designed, constructed and maintained in accordance with the standards of the
				Indiana stream pollution control board.
(b) Where any governmental district, agency,
				community-type, or other public sewerage systems are available or become
				available within a reasonable distance from the school facility, a connection
				shall be made thereto and the public sewers shall be used exclusively. If a
				public sewerage system is not available, sewage shall be disposed of through an
				approved on-site sewage treatment facility.
(c) All parts of the sewer and sewage
				disposal or treatment system shall be located to prevent the possibility of
				contamination of the school water supply or the water supply of surrounding
				property owners. All components of the sewerage system shall be located at
				least 100 feet from any water supply well or buried pump suction line; however,
				sewers constructed of water works grade cast or ductile iron pipe having
				mechanical joints may be located within the 100-foot distance but not closer
				than 30 feet to a water supply well or buried pump suction line, with prior
				written approval of the state board. Exception: The separations enumerated
				herein shall not necessarily be considered adequate in areas where fissured
				stone or very permeable soils are encountered.
(d) All parts of the sewer and sewage
				disposal or treatment system shall be designed, constructed, and maintained to
				adequately transmit and dispose of daily sewage flows and peak sewage
				flows.
(e) Storm water or surface
				drainage shall not be discharged into any public or school sanitary sewer
				system. Water softener and filter backwash water, boiler blowdown water, and
				swimming pool water shall not be discharged into any sanitary sewer which
				drains to an on-site sewage treatment facility, without prior written approval
				of the state board.
(f) In all
				school buildings and additions to school buildings constructed after the
				effective date of 410 IAC 6-5.1, the following shall apply:
(1) Unless it can be documented to the
				satisfaction of the Indiana stream pollution control board that wastewater is
				generated at lesser rates, school sewage disposal systems shall be designed and
				constructed to treat a minimum of 15 gallons per day per elementary student and
				below, 25 gallons per day per secondary student and above, and 100 gallons per
				day per dormitory bed, based on maximum building occupancy.
(2) Sewers shall have manholes constructed at
				intervals of not more than 400 feet along the sewer. Manholes shall be
				installed at every change in size, alignment or grade of the sewer. Cleanouts
				the same size as the sewer, and extending to grade, may be substituted for
				manholes on sewer runs of less than 100 feet; such cleanouts may also be
				installed at the terminus of a sewer if a manhole is located within 300 feet of
				the terminus.
(3) The liquid
				capacity of septic tanks serving schools shall be sufficient to allow for at
				least 48 hours detention at design flow. One or two tanks may be utilized as
				long as the design provides two compartments in series. Tank lengths shall be a
				minimum of three times the tank width, and the compartments in combination
				shall have a surface settling rate no greater than 30 gallons per day per
				square foot. A gas deflection baffle shall be provided as part of the final
				tank outlet.