1. Short title This Act may be cited as the Residential Decentralized Wastewater System Improvement Act . 2. Grants for construction, refurbishing, and servicing of individual household decentralized wastewater systems for individuals with low or moderate income Title II of the Federal Water Pollution Control Act ( 33 U.S.C. 1281 et seq.) is amended by adding at the end the following: 222. Grants for construction, refurbishing, and servicing of individual household decentralized wastewater systems for individuals with low or moderate income (a) Definition of eligible individual In this section, the term eligible individual means a member of a household, the members of which have a combined income (for the most recent 12-month period for which information is available) equal to not more than 60 percent of the median nonmetropolitan household income for the State or territory in which the household is located, according to the most recent decennial census. (b) Grant program (1) In general The Administrator shall establish a program under which the Administrator shall provide grants to private nonprofit organizations for the purpose of providing subgrants to eligible individuals, in accordance with subsection (c). (2) Application To be eligible to receive a grant under this subsection, a private nonprofit organization shall submit to the Administrator an application at such time, in such manner, and containing such information as the Administrator determines to be appropriate. (3) Priority In awarding grants under this subsection, the Administrator shall give priority to applicants that have substantial expertise and experience in promoting the safe and effective use of individual household decentralized wastewater systems. (4) Administrative expenses A private nonprofit organization may use amounts provided under this subsection to pay the administrative expenses associated with the provision of subgrants under subsection (c), as the Administrator determines to be appropriate. (c) Subgrants (1) In general Subject