What is BS EN 14654‑4 about?  
BS EN 14654‑4 is the fourth part of the multi-series of documents that is applicable to drain and sewer systems outside buildings. BS EN 14654‑4 establishes requirements for the management and control of activities in drain and sewer systems outside buildings and specifies requirements for the development and implementation of work programs, and the selection of techniques. Together with the first part of the series, BS EN 14654-4 covers the control of inputs from users.
Note 1: It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Note 2: Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building. 
Who is BS EN 14654‑4 for?
BS EN 14654‑4 on drain and sewer systems outside buildings is applicable to: 
- Management and operators of drain and sewers
- Private and public organizations involved in urban planning and development
- Contractors and designers of sewage systems
- Sewer management bodies
- Public health and safety departments
- Environmentalists
Why should you use BS EN 14654‑4?  
Lack of proper drainage systems can lead to several issues like flooding, collapse of the building and unhygienic conditions. Underground drainage system minimizes the risk of water flooding at your property. The basic goal of a drainage system is to collect and eliminate waste matter in a systematic manner. Drainage systems are intended to dispose wastewater as fast as feasible and to keep sewage and septic tank gases out of residential areas to prevent diseases.
BS EN 14654-4 provides the administration and control of drain and sewer systems placed outside of buildings. It guides you to estimate the cost of planning and implementing work programs, as well as the processes to follow when doing maintenance on public sewers and water pipes.
An operations and maintenance plan, dealing with control of inputs should be in place for the drain and sewer system prior to carrying out major programs. Activities for the control of inputs can be one aspect of the operations and maintenance plan, which is part of an integrated sewer system management plan. BS EN 14654-4 lets you conduct this crucial activity in a much more convenient and efficient manner.
Through BS EN 14654‑1, you will be able to establish an efficient and hygienic sewage management system that not only takes into account public health and safety but also considers the protection of the environment from pollutants. The detailed procedure for conducting management and control of activities will thus align you with best practices that improve overall credibility
