Table 4.8b Action and Limit Levels for E. coli at Monitoring Stations other than WSD Flushing Water Intakes, Gradient Stations and Control Stations (Case 2 and 4)

Parameter (unit)	Monitoring locations	Water Depth	Action Level (cfu/100ml)	Limit Level (cfu/100ml)
E. coli (cfu/100ml)	B10	Geometric mean	31	35
	B11		195	215
	B12		146	150
	B13		223	223
	B14		13	15
	B24		5	6
	B25		3	3
	B26		58	62
	B7		448	482
	B8		101	105
	B9		333	370
	F1		9	9
	F5		258	298

Notes:

- For E. coli, non-compliance of water quality limits occurs when monitoring result is higher than the limit levels.

- For conservative assessment, 1 cfu/100ml was adopted as the lowest level in the calculation if the tested result was below reporting limit (<1).