Natural water treatment control apparatus, natural water treatment system, natural water treatment control method, and program

A natural water treatment control method for controlling a treatment device configured to perform treatment used to contribute to purification of drawn natural water, the natural water treatment control method comprising:

• a step of acquiring tide information serving as information associated with tides of a body of water from which the natural water is drawn;
• and
• a step of determining a treatment mode of the treatment device on the basis of the tide information.

A program causing a computer, stored in a non-transitory computer readable recording medium to function as:

• a tide information acquiring unit configured to acquire tide information serving as information associated with tides of a body of water from which natural water is drawn;
• and
• a treatment mode determining unit configured to determine a treatment mode of a treatment device configured to perform treatment used to contribute to purification of the drawn natural water on the basis of the tide information.