In the Public Health Engineering Sector, NESPAK professionals are well versed with modern design technologies and have the capability to transform such technologies according to the socio-economic conditions of the country/area for which problems are to be addressed. The multi-disciplinary specialty groups are capable of providing consultancy services of international standard. NESPAK has secured more than 300 projects in this Sector in Pakistan and abroad costing more than US$ 8.118 billion.
In this Sector, NESPAK offers engineering services for the projects relating to:
Demographic surveys, study of socio-economic structure of communities, establishment of design parameters, investigations and development of the water supply sources, design of intake structures and treatment works, renovation/extension of existing water supply systems, design of pumping stations, gravity and force mains, preparation of computer models and analysis of distribution networks, design of ground and overhead service reservoirs, design of instrumentation and control and surge suppression equipment, tariff studies, preparation of detailed designs, cost estimates and tender documents, tender evaluation and appraisals, procurement, inspection, installation and commissioning of water supply machinery, treatment plants and related electrical and mechanical equipment for instrumentation, chlorination, chemical dosing, etc., project scheduling and progress monitoring by CPM/PERT methods and construction supervision of water supply systems.
Population forecast and socio-economic surveys, study of climatic conditions and sewage flows, infiltration rate, establishment of design criteria, planning and design of sewerage systems, sewage transport mains, sewage pumping/disposal stations, domestic and industrial sewage treatment facilities and outfall structures, re-use of treated effluent, cost recovery and benefit ratio, designs to renovate/rehabilitate existing sewage collection and treatment facilities, services for inspection and procurement and supervision for installation and commissioning of sewage treatment plants, sludge disposal systems, pumping/disposal stations and related instrumentation and control equipment and chlorination and odour control facilities, chemcial analysis of sewage characteristics like suspended solids, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Acidity/Alkalinity (pH), dissolved oxygen, greasy and oily matter, chlorine demand and metals, preparation of O&M manuals.
Analysis of rainfall data, establishment of runoff, field investigations, establishment of design parameters, planning and design of stormwater collection and disposal systems, drainage pumping/lift stations, outfall structures, disposal channels and improvements in the existing drainage systems, services for inspection, procurement and supervision of stormwater drainage systems along with disposal pumping equipment installation.
Data collection, reconnaissance survey of existing situation, review of institutional set-up, refuse characertization, analysis of ata and formulation of proposals for collection, transfer and disposal of solid wastes, design of sanitary landfills and compost stations, preparation of technical specifications of solid waste collection, transfer and disposal equipment, cost estimates and tender documents.
Design of cold and hot water supply, fire protection, sewerage, wastewater and stormwater disposal systems for all types of public and residential buildings, hospitals, sports complexes, etc.
Data collection, analysis, waste water sampling and analysis, establishment of design parameters, design of industrial waste collection and disposal systems, planning and design of treatment process and treatment works, preparation of detailed design, cost estimates and tender documents, tender evaluation and appraisal, services for procurement and inspection and supervision of installation and commissioning of industrial waste treatment plants, chlorination, odour control and related electrical and mechanical equipment.
Since NESPAK's inception in 1973, over 300 projects have been secured in the Public Health Engineering Sector. Apart from undertaking prestigious jobs in Pakistan, it has provided engineering services on projects in Afghanistan, Ghana, Iran, Kingdom of Saudi Arabia, Nigeria, Oman, Sudan, Syria, Tanzania and UAE.
The cumulative experience of NESPAK related to this Sector is as follows:
180 projects comprising gravity/force mains and distribution networks of various materials of 13,150 km total length, 90 water works, pumping stations, treatment plants, various ground and overhead reservoirs and water supply dams.
118 sewerage projects comprising trunk and collection sewers of various materials of 11,900 km total length, 45 sewage treatment plants, various pumping/lift stations and out-fall structures.
90 drainage projects comprising 2,800 km length of drains of different sizes along with collection and disposal systems.
20 solid waste management projects comprising studies, data collection & analysis, waste quantification and characterization, planning and design of solid waste, transfer and disposal stations, selection and design of sanitary landfill sites and design of equipment for transportation and processing for generation of fuel/gas through incineration process.
54 plumbing projects comprising high-rise buildings, hospitals, schools, office buildings, sports complexes and recreational facilities.
10 industrial wastes management projects comprising waste water collection, treatment and disposal systems, wastewater treatment plants for tanneries, pulp and paper mills, reclamation of wastewater, procurement, inspection, installation of treatment plants along with their related electrical and mechanical equipment.