A
Daily Trust independent water investigation reveals germs which are harmful to human health.
Water samples obtained from different locations in Abuja, Lagos and
Kaduna indicated the presence of microbiological organisms that exceeded
the maximum permissible level by the World Health Organisation (WHO)
and the Nigerian Standard for Drinking Water Quality (NSDWQ) limits.
Daily Trust had conducted an analysis of public water from seven
states including Enugu, Plateau, Katsina and Kano states at different
testing centres.
Water sample taken from Emeka Anyaoku Street, Area 11, Garki, Abuja
on Tuesday, April 4 and tested at the National Water Resources
Institute, Kaduna showed “20 cfu/100ml of Thermotolerant Coliform which
exceeded the 0cfu/100ml maximum permissible level (mpl) by the WHO and
the Nigerian Industrial Standard 554: 2007.”
Thermotolerant Coliform are the commonly used bacterial indicator for sanitary quality of water.
Also, the Total Coliform in the sample was 37cfu/ml, which exceeded
the maximum permissible level of 10cfu/ml by the WHO and NSDWQ.
The American Public Health Association (19th Edition) was used in the
testing while it showed some potential pathogenic (diseases causing)
organisms from faecal and environmental origins.
The analysis signed by the institute’s head, Water Supply and
Sanitation, Ahmed Salisu Hassan, and analysed by Agboola Irene Omolara,
revealed that the values of faecal coliform and total coliforms
indicator organisms are above the standard guideline values recommended
for drinking water.
The source of disease causing organisms, according to the analysts,
might be the water board treated water; dirty storage tank(s);
inappropriate sample collection, sample handling, contaminated sample
container; possible insanitary condition of surroundings leaking service
pipe(s) and or combination of both.
According to the Nigerian Industrial Standard (NIS 554:2007) by
NSDWQ, the health impact of drinking water that exceeded the maximum
limits of Total Coliform Count and Thermotolerant Coliform include,
“urinary tract infections, bacteraemia, diarrhoea, (one of the main
cause of morbidity and mortality among children), acute renal failure
and haemolytic anaemia.”
Dr. J. Abdulrasheed, a medical practitioner in Ilorin, Kwara State,
corroborated the provisions of the Nigeria Industrial Standard stated
above.
The result of water sample from Lagos taken from 26, Dairo Street,
Ketu, also shows presence of germs, thereby not safe for human
consumption.
“The water sample was found to be acidic. It had high aerobic
mesophilic count, Coliform and Escherichia coli,” said Martins
Etaduovie, the analyst from a private laboratory that conducted the
analysis.
The analysis showed that there were 148CFU/ml counts of aerobic
mesophilic organism which exceeded the 102 limit by the NIS 306:2008 for
potable water used by the laboratory.
The Kaduna sample was collected from Babandodo Street, Kakuri, Kaduna
South Local Government Area and from the result, the level of
Thermotolerant Coliform and Coliform are too numerous to count, making
it totally unsafe for human.
The test which was also carried out at the National Water Institute,
Kaduna used the American Public Health Association (19th Edition) in the
analysis and indicated total coliforms indicator organisms above the
standard guideline recommended for drinking water.
The results for Abuja and Kaduna, however, showed the colour and
appearance are at acceptable level, while the levels of chemical
inorganic constituents are also good. The analysis also indicated that
the sample had clear appearance, un-objectional colour and lower
turbidity characteristics in comparison with the maximum permissible
level recommended for drinking water, which signifies the water is
aesthetically acceptable.
Also, the water, according to the analysis, will not lead to wastage
of soap during cleansing and scale formation on hot water boilers due to
lower concentration of hardness causing substances.
“The water board treated water will not lead to elevation of blood
pressure due to very low concentration of salinity in comparison with
the standard guideline value recommended for drinking water,” it reads.
The analysis from Kano and Katsina shows that the water is safe for
drinking with the required level of constituents. However, the maximum
permitted limits for Thermotolerant Coliform in the results from the two
states read 10cfu/100ml instead of the 0cfu/100ml by the WHO and NSDWQ
guidelines.
The Kano sample had 0.2cfu/100ml while Katsina had 0.31cfu/100ml.The
sample from Kano, taken from Giginyu, Nasarawa Local Government Area,
was submitted to the privately owned laboratory on April 12.
“Based on the analysis carried out, the result of all the parameters
is within the WHO guide limit and the NSDWQ most probable limit. And
therefore, the Water is safe for drinking,” Ilyasu Rabiu Isihak, the
scientific officer of the private laboratory in Shagari Quarters, off
Zoo Road, Kano used for the analysis said.
But the analysis showed that the maximum permissible levels of
Thermotolerant Coliform to be 10cfu/100ml instead of 0cfu/100ml as
recommended by the WHO and NSDWQ.
While making clarification via telephone, Mr. Isihak said, “I will
wish to correct some writing, the coli (thermotolerant coliform) are
unwanted because recent literatures have shown that should be unwanted
contrary to what was indicated there,” he said.
He, however, said the water was still safe because, “the
Thermotolerant Coliform was 0.2cfu/100ml as the sample from Kano while
the sample from Katsina had 0.31cfu/100ml. which is less than 0.5 which
is less than one. If you round off the number it is still zero, so the
water is still safe for drinking.”
However, the sample from Enugu tested at the Federal Ministry of
Water Resources, Zonal Office, Enugu showed that the sample taken from
Edinburgh Road, Enugu was safe for drinking.
The result signed by the laboratory manager, Ogochukwu Ene, said the
water was safe for drinking and other domestic or industrial activities.
The Total Coliform Count, E.coli and Enterococci are all at 0cfu.The
sample was taken to the laboratory on April 4 and the result released on
April 11.
The sample collected from British America Junction, off Murtala
Mohammed Way, Jos, Plateau State was however free from harmful germs.
The sample collected on Thursday, April 20 was analysed at the
National Water Resources Institute, Kaduna met the WHO and NSDWQ maximum
permissible level for all parameters.
The analyst, Samuel Joyce Yemisi, said the good quality treated water
will require pipe leakage surveillance to ensure protection against
contaminant flow.
“The treated water at British America Junction off Murtala Mohammed
way is suitable for domestic supply since all the necessary parameters
analysed are within the standard guideline recommended for drinking
water.
“However, it is imperative to improve the total residual
concentration due to possible pipe(s) leakage, protection against
pathogenic contaminants flow and safeguarding health of the teaming
population of the area,” the report was also signed by the Ahmed Saliu
Hassan, the head, Water Supply and Sanitation at the institute.
Results can’t be generalised –FCT water board
The Director, Federal Capital Territory Water Board, Hudu Bello, said
the board did not compromise standard, assuring that the all parameters
are verified by professionals at the board before water was dispensed
to the residents.
He said the microbiological organisms might have entered the water
sampled while it was been taken at the point or through the container it
was taken to the laboratory.
But Mr. Toyin Ishola, the water engineer, said what should be
paramount to the public water handlers should be the safety of the water
running at homes and not only at the treatment plants.
Bello however, said the analysis of the result from a point cannot be
generalised on all other service points. “This is just a particular
area, this is a localised issue which would not have been there if you
had gone back the same day,” he said.
He said it could not have been from the treatment plant and if it was
localised, the hygiene of the people around that place might have
contributed to it, assuring that there could not have been contamination
in other areas. This is a localised post treatment contamination which
cannot be said to be true reflection of water from the board.
The source said the board does not allow any contamination and if any
contamination was discovered through analysis, people are stopped from
using the water while the board usually supply them water with water
tankers until the cause was rectified.