The following words or phrases have the following meanings in this subchapter unless the context clearly indicates otherwise:
  (1) Average condition--for all measurement points for which a hydrologic condition is applicable, the hydrologic condition that would occur approximately 50% of the time and that is intended to represent periods that are neither dry nor wet.
  (2) Dry condition--for all measurement points for which a hydrologic condition is applicable, the hydrologic condition that would occur approximately 25% of the time and that is intended to represent the driest periods.
  (3) Fall--the period of time October through December, inclusive.
  (4) Inflow regime level--a freshwater inflow pattern, at the most downstream point in the Guadalupe and San Antonio River Basins for San Antonio Bay, or at the most downstream points in the San Antonio-Nueces Coastal Basin for the Mission-Aransas Estuary, that includes quantities and frequencies.
  (5) Modeled permitting frequency--the frequencies at which specific volumes of freshwater inflows occur in the commission's water availability models for the river basins included in this subchapter.
  (6) Spring--for the measurement points listed in §298.330(c) of this title (relating to Environmental Flow Standards), the period of time April through June, inclusive.
  (7) Sound ecological environment--maintains, to some reasonable level, the physical, chemical, and biological attributes and processes of the natural system.
  (8) Strategy target frequency--the frequencies at which specific volumes of freshwater inflows occur, and which are used for the sole purpose of providing additional freshwater inflows to the bays and estuaries included in this subchapter through voluntary strategies.
  (9) Summer--for the measurement points listed in §298.330(c) of this title (relating to Environmental Flow Standards), the period of time July through September, inclusive.
  (10) Time period--for certain measurement points in the San Antonio River Basin, the period of time specifically listed in the column labeled "time-period" in Figures: 30 TAC §298.380(c)(12)(B), (13)(B), (14)(B), and (15)(B) of this title (relating to Environmental Flow Standards).
  (11) Wet condition--for all measurement points for which a hydrologic condition is applicable, the hydrologic condition that would occur approximately 25% of the time and that is intended to represent the wettest period.
  (12) Winter--the period of time January through March, inclusive.

Source Note: The provisions of this §298.355 adopted to be effective August 30, 2012, 37 TexReg 6629