PARAMETER MEAN

TEMPERATURE 34.5oC

RELATIVE HUMIDITY 30%

WINDSPEEDDIRECTION

2.7m/s

North-east

RAINFALL 890mm

CLIMATE AND METEREOLOGY RESULTS

PARAMETER MEAN VALUES

SOIL DENSITY 0.48g/cm3

SOIL TYPE Sandy loam and Loamy sand

POROSITY 47-75% for 0-15cm depth40-66% for 15-30cm depth

WATER HOLDING CAPACITY 10-70% for top soil20-45% for lower depths 15-30cm

SOIL PH ACIDIC(5.53-5.9)

EXCHANGEABLE CATIONS Na, K, Ca, Mg

HEAVY METALS High iron concentrationZinc, manganese, copper and lead deposits

FARMING SYSTEM Mixed Farming( plants and animal production).

SURFACE WATER QUALITY

GROUND WATER QUALITY

PARAMETERS VALUES VALUES

pH value 6.28-7.58 (basic) 6.29-6.68 (basic)

Turbidity 24-27 NTU 23-25 NTU

BOD VALUES 3.99-6.84mg/l 6.20-7.40mg/l

COD VALUES 24-36mg/l (very high)

13.45-16.4mg/l (high)

TSS 31-35mg/l

SALINITY 48.3-59.0mg/l 15.90-18.00mg/l

BACILLARIOPHYTA

70.3%

CHLOROPHYTA 17.8%

CYANOPHYTA 7.5%

EUGLENOPHYTA

2.7%

DINOPHYTA 1.30%

DIPTERA 30%

EPHEMEROPTHERA

25%

ANNELIDA 28%

IMPACTS AND MITIGATION

ON HYDROLOGY

AND DRAINAGE

POTENTIAL IMPACTS

RELATED ACTS /SOURCES

MITIGATION MEASURES

Gaseous emissions (CO2 ,NOx1, SOx and CO)Particulates and unburned hydrocarbons

Transportation of materials, internalcombustion from engines ,occasional particulate release.

spray water on construction site. engines maintained

optimal operating conditions to reduce theemission of exhaust gases.

Hearing impairment, communicationinterference, and annoyance, workinefficiencies, psychological distress and othernoise related health problems.

Construction activities, operationsof machines/engines ,transportation and excessive use ofalarm systems.

Enclosure of noisy structures to reduce on site noise.· The use of earmuffs.

GEOLOGY/HYDROGEOLOGY/GEOMORPHOLOGYDrainage/discharge, hydrological pattern,sedimentation,

Sand winning, dredging, barrierconstruction, excavations and otherfoundations .

Waste pits shall be constructed to standard· Dredging shall be done i n properly.· All boreholes shall be cased and sealed.and isolation of site and recovery/clean up of site.

POTENTIAL IMPACTS

RELATED ACTS /SOURCES

MITIGATION MEASURES

SOCIO-ECONOMICSdisplacementIncrease in populationEmploymentIncrease in cash flowAcculturationLoss of economic resourceFarmland takeCommunity disturbanceCommunity development

Commencement ofproject and projectimplementation/execution.

Use temporary camp to accommodate workersduring the implementation phase of the project.

flow of information to and from host communities.Skill improvement training programme and youthvocational training shall be extended to all the hostcommunities.· Sports shall be encouraged to occupy the youths

BIBLIOGRAPHIA WWW.FMEN.ORG

EIA OF A TYPICAL ROAD PROJECT BY SANOL ENGINEERING CONSULT, NIGERIA. Agboola A. A. & Larry R. B. 1973. The Relationship between Soil Ph, Organic Matter, Available P, Exchangeable K, Ca, Mg and More Elements in The Maize Tis sue. Soil: 115(5), 367-375 Amadi A.A. 1991. The Coas tal and Marine Environment of Nigeria – Aspects of Ecology and Management. Technical Paper No. 76 Nigerian Ins titute of Oceanography and Marine Research. 34 p. Allen, J. R., 1965, Late quartenary Niger Delta and adjacent areas : sedimentary environments and lithofacies . A. A. P.G. Bull. 49, 547-600 Bartha, R. and Atlas , M.R., 1979. The Microbiology of Aquatic Oil Spills . Adv. Appl. Microbiol.. 22: 225 – 266. Black, C. A (Ed) (1995) ; Methods of Soil Analys is , Agronomy, No. 9 Part 2, American Society of Agronomy, Madison, Wis consin Blake G. (1965) Bulk Dens ity. In methods of Soil Analys is . Black C.A. (Editor) Amer. Soc.of Agric. Madison Canter, L.W. (1966). Environmental Impact Assessment, Second Edition, New York,

USA McGram-Hill. Davis C. C. (1955), The Marine and Freshwater Plankton. Michigan State Univers ity Press , Michigan, 522pp