2026 Regional Water Plan Hydrologic Assumptions Region A Region A Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region A Region B Region B Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region B Region C Region C Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region C Region D Region D Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region D Region E Region E Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region E Region F Region F Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region F Region G Region G Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region G Region H Region H Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region H Region I Region I Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region I Region J Region J Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region J Region K Region K Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region K Region L Region L Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region L Region N Region N Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region N Region M Region M Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region M Region O Region O Hydrologic Variance Request TWDB Approved Hydrologic Assumptions for Region O