Subject:- 2nd submission: Lake Carrying Capacities (LCC's) based on TP/Cha

 

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Kindly study the various scientific concepts in our webpage titled, “Lake Carrying Capacities Homepage”. This web page has links to some successful examples worldwide.

 

While your department always felt it was municipal responsibility during our extensive discussions over the last whole two decades, nonetheless, select other Provinces of Canada have taken it among themselves to set standards.

 

A major example is the Province of Quebec (see a select extract here in French).

 

The Province of Ontario was the first to propose an enlightened methodology in 1990 but they have not adopted it as a formal policy yet.

 

These policies take into account the `natural background values of TP’, i.e., that existed prior to any watershed disturbances.

 

These are quite simple to ascertain and we have already accomplished that in 1,500 (one thousand five hundred) lakes/ponds although we have to finalize the values for the last 500 of those.

 

The Federal CCME guidelines on Phosphorus are too general to adopt; in addition they do not apply to shallow lakes/ponds without carrying out extensive limnological studies.

 

 

Important PS: Our next submission will have the peer-consensus trophic standards since your department is totally ignoring the fact that most lakes in Nova Scotia are shallow!

 

Even some of the reports you have placed in your website for public use are not based on sound limnological principles, alas!

 

Your departmental as well as its professional consultants, including select academia, have been using trophic guidelines that were developed for deeper lakes in order to carry out their assessment of impacts on shallow lakes/ponds which resulted in erroneous conclusions in several cases.

 

Shallow lakes have their own limnological basis!

 

 

 

Shalom Murti Mandaville Post-Grad Dip., Professional Lake Manage.

Chair & Scientific Director

Soil & Water Conservation Society of Metro Halifax- SWCSMH, a multi-discipline scientific/technical stakeholder group

 

 

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