Section 410 IAC 6-5.1-9 - Sewage disposalAuthority: 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.Indiana State Department of Health; 410 IAC 6-5.1-9; filed Jan 18, 1985, 10:02 am: 8 IR 602; readopted filed Jul 11, 2001, 2:23 p.m.: 24 IR 4234; readopted filed May 22, 2007, 1:44 p.m.: 20070613-IR-410070141RFA; readopted filed Sep 11, 2013, 3:19 p.m.: 20131009-IR-410130346RFA