Which of the following is NOT a water source consideration for raceway systems?

In the context of raceway systems, several factors are critical in ensuring an optimal environment for the species being cultured. Among these considerations, the quality of water, cost of obtaining water, and consistency of the water supply directly impact the health of the aquatic organisms and the overall efficiency of the raceway system.

Quality of water is paramount because it affects dissolved oxygen levels, contaminants, and other parameters that influence the well-being of the organisms. The cost of obtaining water relates to the economic feasibility of operating the raceway system, as the expenses incurred can significantly influence profitability. Consistency of the water supply is also crucial; fluctuations can lead to stressful conditions for fish or other aquatic species, resulting in health issues or even mortality.

The distance from the ocean, however, does not serve as a direct consideration for raceway systems unless these systems specifically rely on marine water. Most freshwater raceway systems are situated inland where the proximity to the ocean does not have a meaningful impact on operational functions or success. Therefore, this factor stands out as not being a relevant consideration when evaluating water sources for raceway systems, making it the correct answer.