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	Taking a Secchi Disk Reading (ejohnson1216) View
	2017 SAV Video 2: Secchi Disk Reading (akbar20777) View
	Measuring lake health: How to make and use a Secchi disk (Cary Institute of Ecosystem Studies) View
	Secchi Depth Measurement (Lake Champlain Sea Grant) View
	Kids Can Do! Make Your Own Secchi Disk (Part 1 of 2) (Minnesota Sea Grant) View
	If you don't know how use to secchi disc WATCH THIS (Mizo the Farm Lady) View
	# 6 CLAMP Training Video: Secchi Disc (IowaLakesideLab) View
	Taking Some New Secchi Disk Readings (A Foreigner Farming in the Philippines) View
	Big Shag Lake Transparency Testing With Secchi Disk (Big Shag Lake) View
	201305-16 13.57.42 (Dana Oleskiewicz) View