(A) All septic tanks and dosing tanks must meet the IDOH requirements per IDOH Rule IAC 6-8.3.
(B) Only that piping material meeting specifications required by the IDOH may be used. The pipe must be positioned in the trench with the holes located at 12 o'clock, four o'clock and eight o'clock for three-hole pipe or four o'clock and eight o'clock for two-hole pipe.
(C) The size of the soil absorption system will vary depending on the soil profile and loading rate of the site. The soil profile and loading rate will be determined using the methods outlined in IDOH Rule 410 IAC 6-8.3. When requested, and when possible, the RCHD will provide that soil boring and analysis.
(D) In calculation of minimum requirements, mobile homes will be considered as three-bedroom dwellings.
(E) Pumps must have the proper pump curve, be acid resistant and be equipped with an adjustable float switch and a high-water alarm. Each pump must be placed a minimum of eight inches off the bottom of the pump chamber and have an acid resistant retrievable device.
(F) Special attention must be given to the installation process as outlined in the IDOH Rule 410 IAC 6-8.3. For example, in evaluation of when soil is too wet for system construction, the plastic limit of the soil shall be considered to have been exceeded when the soil can be rolled between the palms of the hands to produce threads one-eighth inch in diameter without breaking apart and crumbling.
(G) Residential sewage disposal systems shall not be used for the disposal of water from roof drains, foundation drains, swimming pool drains, hot tub drains or area drains. Neither shall they be used for the disposal of chemical wastes in quantities which would pollute ground water or inhibit the settling or digestion of solids in the septic tank.
(H) Any jetted bathtub with a capacity of greater than 125 gallons will be treated as an extra bedroom for the system sizing requirements of this rule.
(I) The landowner proposing to have an on-site sewage system installed is solely responsible for disclosing all property details before the RCHD permitting process will begin. The landowner will be responsible for researching their own property. (Wetland, potential to be a wetland, located within a flood plain, has been heavily logged in the past that would have caused compaction to the soils, and the like.)
(Ord. 2022-3, passed 3-1-2022)