The purpose of this memorandum is to provide the Texas Water Development Board (TWDB) with the
Technical Memorandum developed during preparation of the East Texas Regional Water Planning Area
(ETRWPA or Region I) 2021 Regional Water Plan (2021 Plan). This memorandum details regional
planning activities to date including preliminary analyses of water demand projections, water supply
availability, existing water supplies, water needs, and the East Texas Regional Water Planning Group’s
(ETRWPG) declaration of intent to forego simplified planning.