In a country where there is a wide gulf between the rich and the
middle class, living in highbrow areas like Lekki, Ikoyi and Victoria
Island in Lagos is a sign of better life.
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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