Table A1.

Ill Swimmer ${\stackrel{\sim }{N}}_{\mathrm{i}\mathrm{l}\mathrm{l}}$ Percentage When Included Intra‐Day Variations in Swimmer Number ${\stackrel{\sim }{N}}_{\mathrm{s}\mathrm{w}\mathrm{i}\mathrm{m}}$ (Equation A1) at Imperial Beach CA Under the Four Scenarios for the (Columns) Full Year, Wet Season, and Tourist Season

Scenario	Ill swimmers ${\stackrel{\sim }{N}}_{\mathrm{i}\mathrm{l}\mathrm{l}}$ percentage of N swim
	Full year	Wet season	Tourist season
Baseline	3.8%	2.9%	4.5%
Scenario A	0.6%	1.2%	0.5%
Scenario B	3.7%	2.3%	4.5%
Scenario C	3.7%	2.2%	4.5%

Note. These values should be compared to the N _ill percentages in Table 3.