The
belief of many residents of the Lagos mainland is that those in these
parts of the city are living large. This is more reinforced by the fact
that the crème de la crème of the country have their homes in these
places.
If
one is to suddenly relocate from the mainland to either Ikoyi or Lekki,
the belief is that providence has suddenly smiled on such individual.
But living in these areas has its downside as Saturday PUNCH has learnt.
A
new finding has revealed that residents who use water from boreholes
constructed within their compounds in these areas might unknowingly be
drinking or using water contaminated with their own human wastes.
Saturday
PUNCH was on a finding mission on the impact of human waste disposal in
the Lagos Lagoon when the fact came to light that the construction of
septic tanks in these highbrow parts of Lagos was not a good idea.
The
Coordinator of the Lagos State Wastewater Office, Mr. Lekan Shodeinde,
told Saturday PUNCH that the water table in these areas was too shallow,
which is why the construction of both septic and borehole in the same
compound is a dangerous affair.
Shodeinde said, “A lot of houses in areas like Ikoyi, Victoria Island and Lekki are polluting the water table.
“Those
areas are not supposed to put in place septic tanks. In some of these
areas, before you dig five feet, you have reached the water table. Now,
imagine going to such places to put in place septic tanks which are
constructed in such a way that the waste seeps into the ground.
“They
are simply soiling the water table. These areas are supposed to have a
centralised wastewater treatment where the effluent emanating from
households passes for treatment.”
This
is the practice in many developed countries where centralised sewers
are put in place to cater for the management of human wastes generated
from each home.
According
to Steven Burian, Stephan Nix and Robert Pitt in their study on Urban
Wastewater Management in the US, the centralised system of management of
wastewater has been in existence in the country since the middle of the
19th Century.
Saturday
PUNCH spoke with a bricklayer, who explained that a standard septic
tank could be as deep as 10 feet. Considering the fact that the water
table in these coastal areas is comparatively shallow, it is possible
that contamination occurs to groundwater sources in some of the places.
Experts
say there may be considerable hazard for those who use water sourced
from boreholes directly in these areas, or those who do not have water
treatment facilities or filters in their homes.
Prof.
Ebenezer Meshida of the Geoscience Department of the University of
Lagos, who also teaches at the Civil Engineering Department of the Afe
Babalola University, Ado Ekiti, Ekiti State, said the type of water one
can get in most parts of Lekki, Ikoyi, Ajah and Victoria Island, is
highly contaminated.
He
said, “The water in the region is not expected to be used as drinking
water. That type of water can be used to clean your car or flush the
toilets. Any water you get around five metres depth is highly dangerous.
“The
type of water that is fit for consumption in that area should be
obtained from boreholes that are very deep, deeper than third water
level. Those who are experienced in drilling boreholes understand that
at the third water level, you get fresh water. Sometimes you get to 200
metres or 300 metres before you can get drinkable water but some will
say it is too expensive.
“Those
who build houses in that zone of Lagos must be people with millions of
naira in their pockets because it is not a zone that is good for
extracting drinkable water.
“What
is usually obtained there is salty or polluted water. Most of the
diseases people fall prey to in Lagos are from polluted water
consumption.”
But what can be done by those who already have shallow boreholes in these areas?
Prof. Meshida said boiling of the water is an age-old system that still works fine.
He
said, “Boiling is the first stage of treatment. You can then filter
after that. In those days, we made use of filters that used candles. If
you boil water from whatever source it comes from and you filter it with
a cloth and put it in the candle filters, you can be sure you are safe.
“I
will suggest that anybody who wants to drink water sourced from shallow
boreholes in such areas should go to environmental chemists. They are
in university chemistry departments. They will help to analyse the
water. They will be able to identify the chemical composition and
determine the best way to treat the water.”
A
borehole contractor, Mr. Elijah Idowu, who runs Noble Fourstar Hydro
Resources, explained to Saturday PUNCH the process it takes to reach a
depth where drinkable water can be extracted in the Ikoyi-Victoria
Island-Lekki zone.
He
said, “Digging borehole is never a child’s play in that zone because
you will be talking of about 500 or 700 metres before one can reach a
drinkable water depth.
“If
an average depth borehole is about N500,000 in another place, you will
be looking at about N7m to dig a borehole in a place like Lekki or Ajah.
“What
we do usually is that we screen and case the contaminated water part of
the hole so that this does not affect the fresh water we reach at the
deeper part. Even with that, it is still advisable if the residents
install facilities which they can use to filter the water before
consumption.”
The
Lagos Water Corporation has always discouraged the sinking of boreholes
in the Lagos metropolis but in a city where a large percentage of the
residents do not have easy access to pipe borne water, this may be a
futile plea.
The
Lagos State Governor, Babatunde Fashola, has also expressed concern
over the proliferation of boreholes in the state, saying they
constituted long term environmental problem.
In
a publication by PUNCH in February 2012, the governor said the
residents of the state were better off with more water works than more
boreholes in their different houses.
He
urged the residents to make use of domestic connections to their homes
wherever there is a waterworks, saying government would continue to
build waterworks to bring water close to various homes in the state.
When
Saturday PUNCH spoke with some residents of these upscale areas, it
turned out that the situation was more pathetic than most people would
imagine.
Those
who spoke with Saturday PUNCH at Victoria Island, explained that the
water they get from their boreholes is so bad that it is sometimes
totally unusable without being treated.
At
Idejo Street, Victoria Island, a house guard, Henry Okoro, went inside
his compound and brought out a bowl of water. It looked like one in
which brown clay had been dissolved.
“This is the kind of water you get from the borehole here,” he said.
He said a tanker supplies the house with water from another part of Lagos every week.
“Some of these tankers collect N10,000 per supply, some N8,000,” Okoro said.
At
Osapa London area of Jakande, Lekki, a resident, Oyebola Ogunsanya,
said even though she did not know that septic tanks pollute the water
table, she and other residents were not bothered because the water in
their borehole is not usable.
She
said, “The water in the borehole is like the colour of salt and it is
very salty. Even after treatment, it is still not usable. We pay tankers
to fill our overhead tanks.
“Apart
from the N7,000 I pay to fill the tank which I share with another
neighbour in my boys’ quarters, I spend as much as N5,000 weekly on
bottled and sachet water. The water from our borehole is just unusable.
“Where
I was living before, the water was brownish in colour. You dare not
even think about using it to wash, not to think of drinking. What we do
is that we treat the water so that it could at least be used to wash
clothes and toilets.
“We
have a water treatment plant in the house. After treating the water, we
wait for about three hours. Then it turns whitish. Only then can we use
it to bathe or wash toilets. Even at that, one still has to pour
disinfectants in it.
“My sister in Lekki Phase I lives in a six-bedroom duplex and they have to get two tankers of water every week.”
But
Mrs. Stella Billy-Ashogbon, who lives in Ajah said the water in that
side of the coast is cleaner than the one obtained around VI.
She
said, “Most people who live here are those who would not spare cost in
anything they do in their houses. Most people know that the deeper you
go, the cleaner the water becomes. People who live here hire
professionals to dig boreholes in such a way that they would not worry
about contamination.
“Most
of those who dig shallow wells or boreholes don’t use them for domestic
purposes. They use it for construction or to wet flower. To get a
sustained supply, you will have to go very deep.
“Those
who build septic tanks around here take it far away from boreholes and
they can afford to make their boreholes very deep, no matter the cost.
“All
my friends living between Victoria Island and Chevron area of Lekki
have a similar problem though. No matter how deep their boreholes are,
the water they get from there is always brown. They buy water all the
time. Sometimes they even buy water to wash clothes.
“Saying
this place is supposed to have a centralized sewage system instead of
individual septic tanks is just being idealistic. We like to be
idealistic in the country instead of addressing our own peculiarity.”
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