; and (C) whether the effectiveness of the institute as an institution for planning, conducting, and arranging for research warrants continued support under this section. (2) Prohibition on further support If, as a result of an evaluation under paragraph (1), the Secretary determines that an institute does not qualify for further support under this section, no further grants to the institute may be provided until the qualifications of the institute are reestablished to the satisfaction of the Secretary. . (d) Authorization of appropriations Section 104(f)(1) of the Water Resources Research Act of 1984 ( 42 U.S.C. 10303(f)(1) ) is amended by striking $12,000,000 for each of fiscal years 2007 through 2011 and inserting $8,250,000 for each of fiscal years 2021 through 2024 . (e) Additional appropriations where research focused on water problems of interstate nature Section 104(g)(1) of the Water Resources Research Act of 1984 ( 42 U.S.C. 10303(g)(1) ) is amended in the first sentence by striking $6,000,000 for each of fiscal years 2007 through 2011 and inserting $1,750,000 for each of fiscal years 2021 through 2024 . 2010. 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.) (as amended by section 2004) is amended by adding at the end the following: 225. 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 50 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)