Soil & Water Conservation Society of Metro Halifax (SWCSMH) 310-4 Lakefront Road, Dartmouth, NS, Canada B2Y 3C4 Email:
[email protected] Tel: (902) 463-7777 Master Homepage: http://lakes.chebucto.org Ref.: NSE_LCC_Threshold_TP2014 (21 pages) To: Hon. (Prof.) Randy Delorey, Minister, Nova Scotia Environment Dept Cc (all Rt. Hon. Stephen McNeil, Hon. Diana C. Whalen, Hon. Andrew Younger, Hon. Lena MLAs w/in Metlege Diab, Hon. Keith Colwell, Hon. Tony Ince, Hon. Kelly Regan, Hon. Joanne the HRM Bernard, Hon. Labi Kousoulis, Hon. Kevin Murphy, Hon. Maureen MacDonald, Hon. area): Denise Peterson-Rafuse, Hon. Dave Wilson, Mr. Allan Rowe, Mr. Stephen Gough, Mr. Brendan Maguire, Mr. Bill Horne, Ms. Patricia Arab, Mr. Ben Jessome, Mr. Iain Rankin, Mr. Joachim Stroink, Ms. Joyce Treen From: S. M. Mandaville Post-Grad Dip., Professional Lake Manage. Chairman and Scientific Director Date: March 14, 2014 Subject: Phosphorus:- Details on LCC (Lake Carrying Capacity)/Threshold values of lakes, and comparison with artificially high values chosen by the HRM We are an independent scientific research group with some leading scientists across Canada and the USA among our membership. Written informally. I provide web scans where necessary as backup to Government citations. Pardon any typos/grammar. T-o-C: Subject/Topic Page #s Overview 2 Introduction 2 Eutrophication 4 Potential sources of phosphorus 4 CCME (Canadian Council of Ministers of the Environment)’s guidance 5 table --- --- Conclusions of the 18-member countries of the OECD (Organization for