Water supply is an essential life line which supports people’s lives, urban function, and socio-economic activities, and is a social infrastructure facility for providing safe and delicious water. For the purpose of continuously achieving this, we formulate various master plans, such as a regional water supply vision, basic management plan, regional water supply development plan, business integration plan, etc.

We conduct operations concerning application for approval and license associated with management of water supply and industrial water supply services, such as application for approval of services under the Water Supply Act, notification or application for license of business under the Industrial Water Supply Business Act, application for approval concerning use of rivers under the River Act, etc.

Water supply facilities are required to be provided with functions which are resistant to natural disasters and accidents and capable of economically supplying safer and better quality potable water, while taking in consideration social situations and needs of customers. We plan water-intake facilities, water storage facilities, water transmission facilities, water purification facilities, water conveyance facilities, and water distribution facilities which are suitable for natural and social conditions of a community, and create design documents necessary for implementing the construction.

To insure that the construction is implemented in an appropriate and faithful manner in accordance with the design specifications, we conduct construction supervision operations such as process control, quality control, inspection, specification conformity, creation of a performance report, etc.

The whole water supply system ranging from water-intake facilities to water distribution facilities and water supply facilities needs to be functioning soundly, in addition to maintaining each facility in a satisfactory operating condition. In order to enable stable water supply for a long period of time by means of asset management, we evaluate soundness of facility functions in accordance with a precise function diagnosis method.

It is important to improve or renew facilities which are evaluated as getting old or having their function deteriorated. We utilize methods including asset management to formulate rehabilitation plans in consideration for maintaining proper water rate level and sound financial management of water supply facilities.

Enhancement of countermeasures for earthquake is an urgent issue for water supply systems. After checking the disaster prevention plan of a community, we formulate a plan for making facilities earthquake resistant for minimizing impact by suppressing occurrence of earthquake damages in consideration of assumed seismic movement and roles of water supply facilities to make the plan align with the disaster prevention plan of the community. Also, we formulate emergency measures for supplying emergency water and quickly restoring water supply facilities, to construct comprehensive measures against earthquake.

Restrictions on water intake and water supply system due to draught are conducted across the country almost every year. Water supply entities which are prone to water shortage due to droughts needs to prepare drought countermeasures in advance in order to mitigate impacts on water supply. We propose effective countermeasures for achieving water supply resistant to drought.

It is essential for water supply systems to efficiently and effectively to implement emergency water supply and restoration etc. in emergency situations such as natural disasters (e.g. earthquakes, droughts), water quality deterioration, facility accidents, terrorism, etc. We formulate a crisis management plan and manuals for various risk scenarios customized for each specific region for an effective and efficient implementation.

Safety of potable water supply is ensured by developing and managing a water supply system which is appropriate for raw water so that water quality standard is satisfied. Meanwhile, there are various risks such as water contamination accidents and damages by abnormal odor and taste. We analyze and evaluate vulnerability among other things of water source to water tap and formulate a specific water safety plan for advancing water quality management.

Water supply systems include multifarious mechanical and electrical equipment, and they therefore have characteristics of an energy consumption industry. In order to securely implement energy measures for water supply facilities, we conduct energy diagnosis, and formulate energy-saving measures by means of facility improvement and efficient water operation and measures for introducing recyclable energy such as small-scale hydroelectric power generation or solar power generation, and thereby support construction of water supply system which contributes to global warming prevention.

Environmental measures are important issues for water supply systems. It is required to take an environmental conservation approach for minimizing environmental load as much as possible by controlling consumption of necessary resources during processes from water intake to water supply. In order to promote this resource circulation, we formulate efficient measures for using resources such as raw water, chemicals, etc., and measures for reducing volume of and recycling construction by-products and water purification sludge to support construction of eco-friendly water supply systems.

In order to supply water in a stable manner, it is necessary to efficiently and effectively manage operation and conservation of water supply facilities by systematic maintenance. For the purpose of achieving water supply systems with high stability, we formulate various maintenance management plans concerning water purification control, water distribution control, water quality control, etc.

We draw up a management plan which focuses on the entire business and business characteristics. This process clarifies specific management improvement measures (water rate revision, comprehensive outsourcing to private companies, etc.), and establishes an optimum mid-long term vision.

We are introducing new business methods for construction schemes, contract support, performance monitoring etc., such as comprehensive outsourcing to private companies, PFI, PPP, DBO, for the purpose of relieving government spending and improving services or creation of business opportunities. Moreover, implementation of consulting concerning comprehensive management and expansion & collaboration of sewerage, water supply, rural sewage, night-soil treatment, etc.

In order to streamline management and improve accountability, we conduct all practical operations concerning introduction of corporate accounting, such as an asset investigation associated with application of the Local Public Enterprise Act, support for transition clerical work, introduction of an accounting system, etc. Our project team, including a certified public accountant, provides detailed consulting services.

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For the purpose of improving the living environment and conserving the water environment in a community, we formulate a plan in which sewerage business can be developed in a sustainable manner. Further, we incorporate management of accumulated assets and utilization of resources such as water and energy in order to seek to improve the value of the sewerage business.

We reconsider how the future water environmental and resources in a basin should be, and formulate a comprehensive plan for basin water management which gives consideration to downsizing, in light of social situations, including the future decrease in population and industrial structure.

Designing a sewerage facility requires comprehensive technological capability, including civil , construction , mechanical , electrical engineering, etc. NJS with sufficient staff and extensive experience designs facilities that are excellent in functionality and economic efficiency. Also, we provide highly efficient designs in terms of measures against disasters, including earthquakes and floods, and energy measures for securing safety and mitigating environmental loads.

In order for sewerage construction work to be implemented properly and faithfully in accordance with the design specifications, we conduct construction supervision operations such as process control, quality control, inspection, specification conformity, performance report, etc.

We set long-term goals for sewerage business, formulate income and expenditure improvement plan for achieving the goal (financial plan and investment plan), and evaluate priorities of reconstructions .

 

In order to achieve a preventive maintenance type of maintenance management, we formulate inspection & investigation plans in light of characteristics of facilities and equipment.

In order to extend facility/equipment life and to achieve optimization of Life Cycle Cost (LCC), we formulate an effective life extension plan.

For the purpose of efficiently implementing a plan-do-check-action management cycle, we construct a database system capable of systematically and efficiently managing facility data and maintenance management data.

We establish effective and feasible countermeasures by making full use of earthquake and tsunami simulations, on the basis of damages to sewerage facilities caused by frequent earthquakes and tsunamis, including the Great East Japan Earthquake.

 

We implement precise flood simulation by incorporating complicated landforms of urban areas and taking in consideration distribution of rainfall such as torrential rainfall which is spatially and unevenly distributed, and thereby establish effective hardware & software measures. We also establish measures against unknown water, which is becoming a serious issue along with aging sewerage system.

We compile methods concerning advance preparation and posterior coping necessary for saving lives of people who engage in sewerage works and quickly conducting function restoration during disasters caused by large earthquakes and torrential rains as a sewerage BCP.

We establish facility plan and facility design necessary for saving energy and creating energy from water or sludge for the purpose of reducing cost of operating facilities, and also propose method of business operation.

 

We establish facility plan and facility design for effectively recycling sewage sludge and other biomasses, and propose a method of operating it as a business.

In order to operate and maintain sewerage facilities efficiently, we analyze and evaluate various information systems, aggregation & analysis of management information, and an operation support using an activated sludge model, and propose a method to streamline operations.

We establish business plan which focuses on the entire business and business characteristics for a sounder sewerage management. This process clarifies specific management improvement measures (revision of sewerage charges, comprehensive outsourcing to private companies, etc.) and establishes an optimum mid-long term vision.

We are introducing new business methods for construction schemes, contract support, performance monitoring etc., such as comprehensive outsourcing to private companies, PFI, PPP, DBO, for the purpose of relieving government spending and improving services or creation of business opportunities. Moreover, we focus on implementation of consulting services concerning comprehensive management and expansion & collaboration of sewerage, water supply, rural sewage, night-soil treatment, etc.

In order to streamline management and improve accountability, we conduct all practical operations concerning introduction of corporate accounting, such as asset investigation associated with application of the Local Public Enterprise Act, support for transition clerical work, introduction of accounting system, etc. Our project team, including a certified public accountant, provides detailed consulting services.

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NJS implements highly accurate flood simulation in which river and sewerage are simultaneously analyzed. Also, we formulate an economic and highly effective stormwater plan in which rivers and sewerage are combined by means of comprehensive technology for stormwater measures.

In implementing flood measures, it is necessary to conduct business by complying with various laws and regulations such as the River Act, Sewerage Service Act, City Planning Act, etc. NJS promptly responds to operations concerning legal procedures, including approval and license applications.

According to flooding measures in recent urban areas, hardware measures such as facility development as well as software measures such as information provision are important. NJS implements operations concerning disaster mitigation measures ranging from highly accurate simulation to create hazard maps.

NJS implements detailed design operations for various facilities such as embankment, revetment, sluice gate, sluice pipe, weir, flood gate, drainage pump station, flood control basin/reservoir, etc. with our extensive knowledge ranging from investigation, planning, designing, construction, to maintenance management.

In river facilities, it has become important to understand conditions of facilities after a certain period of construction by means of monitoring surveys, inspections, etc. NJS implements maintenance management formulation operations using database system.

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In order to realize a circulatory society, we formulate a comprehensive plan best suited for a community to reduce, reuse, recycle (3R), and appropriately dispose of waste, night-soil, sludge, discharged water, and sewage. Further, we support analysis and plan creation of business management such as information disclosure and financial management which are going to be needed more and more in the future.

A basic environmental plan defines basic approaches aimed not just for pollution prevention but also for improvement in social and living environment and conservation of natural environment in a community. NJS supports formulation of citizen-participation type plan by reflecting and realizing voices of the community.

In river facilities, it has become important to understand conditions of facilities after a certain period of construction by means of monitoring surveys, inspections, etc. NJS implements maintenance management formulation operations using database system.

Waste disposal facilities are a combined facility of construction and plant which is constructed by a performance-based order. NJS provides supervision of design and construction work by assembling a project team comprising of professional engineers from civil, construction, mechanical & electrical engineering, and contributes to development of waste disposal facilities in local govermments.

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We accumulate and uniformly manage various kinds of information (construction management, facility management, maintenance and repair, failure history, inspection management, cost, etc.) in every stage from construction to maintenance management concerning various facilities operating in water purification plants, sewage plants, pump stations, etc., and thereby strongly assist rational operation of water supply and sewerage business.

We manage pipelines on electric maps (GIS, CAD) and accumulate information on construction work and maintenance management to support efficient execution of operations. Also, advanced search function will enable a smooth interaction with counter services (call center) for work such as installation of drainage facility.

 

We manage information on electrical maps such as embankments of rivers and facility information of bridges and accumulate maintenance management information such as inspection/repair of facilities to support efficient execution of operation. Also, it can be utilized as disaster prevention information by combining with rainfall & water level information.

We implement precise flood simulation in urban areas by collecting X-band MP radar rainfall information with high accuracy, and distribute flood risk information in real time.

We provide public corporation accounting system which is in compliance with new accounting standards. The system has been revised by adding functions to respond to users' needs.

It is a system specialized in asset management of water supply and sewerage business and is capable of managing business characteristics and information on unique attributes. In particular, it achieves combination of information with facility management system and thereby seeks to realize stock management.

This system improves data accuracy and streamlines operations by uniformly managing routine operations from meter reading, investigation and decision of amount to be collected, to collection, and it also improves collection rate by means of detailed delinquency management.

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