WASHINGTON, Aug. 14 -- Sen. Martin Heinrich issued the following news release:

WASHINGTON - This week, U.S. Senator Martin Heinrich (D-N.M.), Ranking Member of the U.S. Senate Energy and Natural Resources Committee, U.S. Representatives Jared Huffman (D-Calif.), Ranking Member of the House Natural Resources Committee, and Bennie Thompson (D-Miss.), Ranking Member of the House Homeland Security Committee, along with Pablo Jose Hernandez (D-P.R.), Resident Commissioner of Puerto Rico, sent a letter to the Government Accountability Office (GAO) requesting a briefing and a full investigation into Puerto Rico's drinking water shortage, the condition of its water and wastewater systems, and what federal agencies are doing to help.

"Puerto Rico ...