; and (B) may include testing, planning, or carrying out other relevant activities, as determined by the Administrator, to identify the location and condition of lead service lines and solder that is not lead free. (2) Priority application In providing assistance under this section, the Administrator shall give priority to proposed programs for schools for which, at any time during the 3-year period preceding the date of submission of an application of the eligible entity, monitoring data has indicated elevated lead levels in the school drinking water. (c) Authorization of appropriations There are authorized to be appropriated to carry out this section $50,000,000 for each of fiscal years 2018 through 2022. . 22006. School remedial action program Section 1464(d)(7) of the Safe Drinking Water Act ( 42 U.S.C. 300j–24(d) ) is amended— (1) by striking $20,000,000 and inserting $100,000,000 ; and (2) by striking 2017 through 2021 and inserting 2018 through 2022 . C Climate resiliency, security, and source water protection planning 23001. Climate resiliency, security, and source water protection planning Section 1433 of the Safe Drinking Water Act ( 42 U.S.C. 300i–2 ) is amended to read as follows: 1433. Climate resiliency, security, and source water protection (a) Source water and distribution system vulnerability assessments (1) In general Not later than 24 months after the date of enactment of the Safe Drinking Water Act Amendments of 2017 , each community water system shall submit to the Administrator source water and distribution system vulnerability assessments. (2) Identification of threats Assessments submitted pursuant to paragraph (1) shall identify— (A) threats to the community water system’s source water from industrial activity, pipelines and storage tanks, contaminated sites, agricultural activity, and oil and gas exploration; (B) threats to the community water system’s source water and distribution system from climate change, extreme weather, drought, and temperature changes