6th submission: Ban/limitation on fertilizers containing phosphorus

 

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This can be implemented with no further delay in two phases as follows:

 

Phase-1: Ban/limit lawn fertilizers containing phosphorus.

 

Commencing January 01, 2009, the Province of Manitoba will be applying province wide limitation and Nova Scotia could follow suit with a similar or more stringent mandatory policy.

 

An overview of this initiative can be found in the web page of Glendale Golfs, Manitoba!

 

The North American leader in this methodology is the Minneapolis City Bylaw. We understand other municipalities in the states of Minnesota and Wisconsin are following suit.

 

Public education, while admirable, may not be sustainable in the medium to long term. The costly $120,000 Federal-Provincial SEDA project at First Lake, Lower Sackville was inconclusive and we have extensive videotaping of it as well as the combined biological and chemical data. 

 

 

Phase-2: Farms:- Nova Scotia could also follow the methodology proposed by Manitoba (kindly consult the Manitoba Water Stewardship department).

 

 

PS: Pursuant to our past submissions to your department, we found that your department did not see the imperative value, perhaps because the phosphorus concentrations in lakes across Nova Scotia are lot lower than those in the central and western areas of North America.

 

We acquiesce that our values are lower and I personally have carried out Predictive Modelling of approximately fifteen hundred lakes/ponds (1,500) to date.

 

Such comparisons are not based on professional lake management though.

 

Comparisons have to be made with the `pre-cultural’ values, i.e., those that existed prior to any anthropogenic impact on our watersheds which can be determined in two ways: i) by Predictive Modelling, and/or ii) by Paleolimnological techniques utilizing diatom inference models.

 

See also Indicator thresholds for anthropogenic stressors of freshwater lakes in Nova Scotia as reported by former DFO biologist, Paul Mandell, as part of his research at Dalhousie University.

 

 

 

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

 

…………… and Public Art in Nova Scotia

 

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