Water Management Strategies for Efficiency and Sustainability in Supply Systems

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Customers with metered water supply are more water-efficient, promoting metering can increase awareness. Options include meter optants, metering on change of occupancy, supply pipe renewal, water efficiency, consumption data audits, and commercial water efficiency. Distribution management focuses on leak reduction through increased detection and main pipe replacement. Resources management options include extending treatment works, raising reservoir capacity, desilting reservoirs, desalination, increased abstraction, and water transfers for enhanced supply. Efficient drainage water management is crucial to prevent consequences of wastewater escape like infrastructure flooding and pollution.

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Uploaded on Apr 03, 2024 | 1 Views

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Showcard 4 WRMP Options .Water Demand Management Options WRMP Options .Water Demand Management Options Explanation Water Demand Management Customers who have a metered supply are generally more water efficient as they are more water aware. Through increased promotion of metering we can encourage a greater number of customers to opt for a water meter A: Meter optants The WReN supply areas cannot universally meter all customers as this is only permitted in areas the Environment Agency classify as water stressed. However, we can increase the number of metered customers by installing a meter into every property which is sold B: Metering on change of occupancy Customers are responsible for their supply pipe from the property boundary to the point of supply. Water is wasted through leaks from these pipes. Increased investment would allow identification and replacement of leaking supply pipes C: Supply pipe renewal D: Water efficiency (providing water saving products) Both commercial and domestic customers can benefit from water audits and installation of water saving products, such as shower regulators and low flush cistern devices By providing customers with information on how much they use vs. how much other consumers use it raises awareness of how they compare and encourages them to take action to reduce use. This can be through an online portal or app E: Consumption data Audits and / or internal leakage detection/fixing F: Commercial water efficiency 1

Showcard 4 WRMP Options .Distribution Management Options WRMP Options .Distribution Management Options Explanation Distribution Management All water companies have an annual leakage target they must meet. By investing in increased leakage detection activity, leakage can be reduced beyond current targets A: Leakage Replacing aging mains pipes to reduce the number of bursts. Old pipes generally result in more bursts, replacing those mains that lose the most water through bursts will reduce the volume of water put into supply B: Mains replacement 2

Showcard 4 WRMP Options .Resources Management Options WRMP Options .Resources Management Options Explanation Resources Management A: Extension of existing water treatment works Increasing the capacity of existing works can increase the volume of water treated and available for supply B: Reservoir (dam or embankment raising) Increasing reservoir capacity provides additional storage of water and increases the volume available for supply Over time silt accumulates at the bottom of reservoirs taking up capacity. Removal of this silt increases storage and therefore the volume of water available C: Reservoir Desilting Increased water supply could be provided by constructing a desalination plant. This would treat sea water and increase the water available for supply D: Desalination Supply can be increased by applying for licenses to abstract from new river / groundwater sources or apply for an increase to an existing river / groundwater sources. This may require additional investment in increased treatment work capacity E: Increased Abstraction Transfer water between water companies in our region or between neighbouring regions. This will require investment in new infrastructure F: Water Transfers 3

Drainage Water Management ..wastewater escape consequences Drainage Water Management ..wastewater escape consequences Showcard 4 Wastewater escape consequences A: Flooding of infrastructure like major roads, hospitals B: Indoor flooding C: Pollution leading to dead fish in rivers D: Potential to make people and animals who go in river and sea water poorly E: Algae choking plant and wildlife F: Outdoor flooding G: Litter in rivers and the sea H: Water company fines for pollution or poor river and bathing water quality I: Slow drainage due to blocked drains J: Bad smells due to blocked drains K: Temporary loss of use of rivers and the sea for activities like swimming, surfing and paddling 4

Showcard 4 Metrics: Public Water Supply Drought Resilience Biodiversity Net Gain Natural Capital Leakage Per Capita Consumption Public Water Supply Non Drought Resilience Carbon Customer Preferred Option Stakeholder Preferred Option Human and Social Wellbeing Financial Cost Option Deliverability Water Management Options: Water Meter Optants Metering on Change of Occupancy Supply Pipe Renewal Water Efficiency Consumption Data Commercial Water Efficiency Leakage Mains Replacement Extension of Existing Water Treatment Works Reservoirs Reservoir Desilting Desalination Increased Abstraction Water Transfers Abstraction and the Environment: Reviewing abstractions to ensure they are not damaging the environment Protecting SSSI s, Protecting sensitive habitats such as SACs Protecting chalk streams Protecting salmon rivers Reducing the use of drought permits/orders Water Trading 5