The following words and terms, when used in this subchapter, shall have the following meanings, unless the context clearly indicates otherwise:(1) Board--Board of directors of the Harris-Galveston Coastal Subsidence District.(2) Monitoring--Water samples taken and analyzed, continuous water quality measurements, and/or physical measurements of water flow and pressure in certain water collection and distribution lines as deemed appropriate by the executive director to determine the groundwater and surface water percentages of alternative water supply.(3) Permit year--A 365-day period of time during which a person is authorized by the Harris-Galveston Coastal Subsidence District to use groundwater.(4) Samples--Water samples taken to determine groundwater and surface water percentages in the alternative water supply.(5) Water chemist--A person or persons with expertise in water chemistry designated by the executive director to be the principal investigator.