Septic grant program.

Provides that money in the water infrastructure grant fund (fund) may be used to provide grants, loans, or other financial assistance to participants of the fund for the planning, designing, or acquisition, construction, renovation, improvement, or expansion of, a residential onsite sewage system or an onsite residential sewage discharging disposal system. Establishes various criteria for a participant to apply for a grant, loan, or other financial assistance. Requires the Indiana finance authority to establish a project prioritization system for the purposes of awarding grants, loans, or other financial assistance from the fund for the purpose of planning, designing, or acquisition, construction, renovation, improvement, or expansion of, a residential onsite sewage systems or an onsite residential sewage discharging disposal system.