Page:United States Statutes at Large Volume 123.djvu/1364

 123STA T . 13 4 4 PUBLIC LA W 111 – 11 —M A R .3 0, 200 9waterus e on t h ea v a il a b ilit y an d sustainable use o f water resour c es the incor p oration of water use science principles , with an e m phasis on applied research and statistical esti - mation techni q ues in the assessment of water use; ( C ) the inte g ration of any dataset maintained by any other F ederal or S tate agency into the dataset maintained by the Secretary; and ( D ) a focus on the scientific integration of any data relating to water use, water flow, or water quality to gen- erate relevant information relating to the impact of human activity on water and ecological resources . ( 2 ) WATER A V A IL A B ILIT Y . —I n carrying out the assessment program, the Secretary shall conduct an ongoing assessment of water availability by— ( A ) developing and evaluating nationally consistent indicators that reflect each status and trend relating to the availability of water resources in the U nited States, including— (i) surface water indicators, such as streamflow and surface water storage measures (including la k es, reservoirs, perennial snowfields, and glaciers); (ii) groundwater indicators, including groundwater level measurements and changes in groundwater levels due to— (I) natural recharge; (II) withdrawals; (III) saltwater intrusion; (I V ) mine dewatering; (V) land drainage; (VI) artificial recharge; and (VII) other relevant factors, as determined by the Secretary; and (iii) impaired surface water and groundwater sup- plies that are known, accessible, and used to meet ongoing water demands; (B) maintaining a national database of water avail- ability data that— (i) is comprised of maps, reports, and other forms of interpreted data; (ii) provides electronic access to the archived data of the national database; and (iii) provides for real-time data collection; and (C) developing and applying predictive modeling tools that integrate groundwater, surface water, and ecological systems. (c) G RA N T P R OG RA M .— ( 1 )A U T H ORITY O FS E C RETARY.— T he Secretary may provide grants to State water resource agencies to assist State water resource agencies in— (A) developing water use and availability datasets that are integrated with each appropriate dataset developed or maintained by the Secretary; or (B) integrating any water use or water availability dataset of the State water resource agency into each appro- priate dataset developed or maintained by the Secretary. As s e ss m e nt.
 * (B)