Subject:- 4th submission: Stormwater
treatment
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We respectfully request your
department mandate the requirement of total stormwater treatment in
major new developments; for example, in urban/suburban developments exceeding in
20 hectares overall.
Stormwater treatment
implies methodologies capable of removing 80-95% of all `stressors’
that typically accrue after an area is occupied by the end
users.
Especially, such treatment
methodologies should be capable of removing stressors smaller than 20 microns as
well!
Similar requirements are mandatory
in some enlightened jurisdictions in the
We are unaware of such stormwater
treatment anywhere in
This is mostly the responsibility of
your department and not of municipal units although many of your senior
professional staff had always `passed-the-buck’ to municipalities during our
past discussions, to state in simple English.
Examples of failures in
HRM:--
A recent significant failure was
evident at RUSSELL
LAKE,
When issues rise after-the-fact, HRM
always shifts the total responsibility to your
department.
See also a recent staff report d/February
13, 2008 to the HRM Regional Council where they were professional enough to
admit that `channelized stormwater’ is typically disposed off into freshwater
courses without any treatment.
Shalom Murti Mandaville Post-Grad
Dip.,
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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