Water retention design for Rio vista project in Duvall

pointdepressedMechanics

Feb 22, 2014 (3 years and 5 months ago)

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Water retention design for Rio vista project in Duvall

Collecting and storing runoff water and reusing it as non
-
portable source

By Michael Azzeh



Introduction

Water
management

and collecting storm and runoff
water is

considered
vital,

in any
future

eco and

sustainable
design. A small town like
Duval is

considered

an ideal place
for this
purpose.


Because,

it’s

abundances

of rain and excessive of runoff water for
our
prospective

residential

development project.


Objectives

Based on the dat
a
that we have
collected regarding

the small town of Duvall. We are in
Rio vista project have decided to build
water

retention for storm and runoff water and
incorporate

into our

community residential
design project.

Weather

and rainfall facts
about the town

of
Duvall

The annual average
precipitation

at Duvall is 48.78 inches. It rains all the time except for
the two months of
July

and
August
.
Temperature tends

to be in
mid
-
40

in winter and
mild during
summer
.

Taking into consideration of the
rainy

weather and the water that run close to
the

development.
I believe

this is an ideal model and suitable for our water retention and
storm water
runoff

design.
By considering those fact we are able to manage the water
and reuse it as
no portable

source for
the
residents

intended for
bathrooms

towel

and
clothes useses.By using natural infiltration and
vegetation’s,

gravel and sedimentation
we will be able to collect the rain and runoff water from roof tops and the
rest

of
slope
surfaces that are part of the b
ig
development

into tanks in the lower part of the
complex.
The water
will

go
through

natural
filtration

and stored into
tanks.
Then, the
water will be pumped again to other main storage tank then pumped bered or use
natural higher altitudes redistribute i
t to homes as nonportrable source of water.


1 inch of rain over one acres of land is approximately 27,154 gallons of water


Thus according to this and as we know the annual average rainfall at Duvall

is 48.78
inches, therefor, one acre in
Duvall

gets about
1324572.12
gallons

of rainwater.

According to US. of census the population of Duval is
6,828.
We believe our water
retention design will contribute in reducing the amount of water consumption and cost
effective and preserve this vital sourc
e.


According to USGS


Estimates vary, but each person uses about 80
-
100 gallons of water
per day. Are you surprised that the largest use of household water is to flush the toilet,
and after that, to take showers and baths? That is why, in these days of wa
ter
conservation, we are starting to see toilets and showers
that use less water than before
….
For your kitchen and bathroom faucets, if you look real close at the head of a faucet,
you might see something like "1.0 gpm", which means that the faucet head w
ill allow
water to flow at a maximum of 1.0 gallons per minute.






The main source of water will collected from rooftop via
gutters down to the main drainage system to be naturally filtered and stored






Materials and method

Here some

of the standard methods
,

currently

used for this kind of design. We will

be
using similar method in our design.

In addition, standard smooth wall drainage
pipes
and,

bed ravels and
specific vegetation

that allows

filtrations
.


Pictures taken
www.nyc.gov/html/dep/pdf/green
-
infrastructre















References

www.examiner.com/article/converting
-
rainfal

www.water.usgs.gov/edu/ga
-
home
-
percapital.htm

www.nyc.gov/html/dep/pdf/green
-
infrastructure