Appendices D Assessment Tables
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Bristol Water Draft Drought Plan 2021 Strategic Environmental Assessment Environmental Report Ref: ED14443 | Final draft report | Issue number 1 | 29/03/2021 Appendices D Assessment Tables This appendix presents the SEA assessment tables for all supply and demand management options contained in Bristol Water’s Draft Drought Plan. 1 Bristol Water Draft Drought Plan 2021 Strategic Environmental Assessment Environmental Report Ref: ED14443 | Final draft report | Issue number 1 | 29/03/2021 Appeals for Restraint Demand Management Measure Topic SEA Objective Potential residual effect on sensitive receptors (assuming good Scale of Certainty Duration Permanence Magnitude Value/ Residual Residual practice construction methods) effect : of effect (Short/ of effect of Effect sensitivity of Adverse Beneficial (Small / (Low/ Medium/ (Permanent/ (Low/ receptor (Low/ Effect Effect Medium Medium/ Long) temporary) Medium/ Medium/ High) / Large) High) High) Biodiversity, 1.1 To conserve and This measure will have no adverse impacts on biodiversity, flora or fauna, Medium Medium Short. Temporary Low Medium None Minor Flora and enhance biodiversity, or designated sites of nature conservation interest but the measure will (beneficial) beneficial Fauna including designated sites reduce consumer demand for water and thereby reduce the requirement for of nature conservation abstraction from Bristol Water’s sources, with the potential for positive interest and protected impacts on flow sensitive habitats/ species. habitats and species and to enhance natural capital. 1.2 To avoid introducing or The appeals for restraint are considered to have no impact on avoiding the n/a n/a n/a n/a n/a n/a n/a n/a spreading INNS introduction or spreading of INNS, with reduced abstraction requirements leaving more water in river systems. Population 2.1 To protect and The appeals for restraint will result in water savings (estimated at 1% of total Medium High Short. Temporary Low Medium None Minor and human enhance health and well- household demand) which will contribute towards improving the security of (beneficial) beneficial health being (including raising supply for customers in Bristol Water’s supply region. It will also help raise awareness of the awareness of the importance and value of the water environment for health importance and value of and wellbeing. No adverse effects are anticipated. the water environment for health and well-being). 2.2 To protect and No impacts on recreation, tourism or navigation are anticipated as a result n/a n/a n/a n/a n/a n/a n/a n/a enhance the water of the appeals for restraint in water use. environment for other users including recreation, tourism and navigation, as well as terrestrial recreational resources (including National Trails and Public Rights of Way). 2.3 To promote a The appeals for restraint will result in water savings which will contribute Medium Medium Short. Temporary Low Medium None Minor sustainable economy with towards improving the security of water supply for businesses in the region, (beneficial) beneficial good access to essential therefore protecting the local economy. No adverse effects are anticipated. services, including a resilient, high quality and affordable supply of water. Material 3.1 To reduce, and make The appeals for restraint will not involve any increased use of material Medium Medium Short. Temporary Low Medium None Minor assets and more efficient, the resources nor any increase in waste production. Rather, this measure will (beneficial) beneficial resource domestic industrial and reduce the amount of water used in the region. use commercial consumption of resources, minimise the generation of waste, encourage its re-use and eliminate waste sent to landfill. 3.2 To promote and The appeals for restraint will result in promoting the sustainable Medium Medium Short. Temporary Low Medium None Minor secure the efficient and management of natural resources including efficient and sustainable use of (beneficial) beneficial sustainable use of water to water, as well as helping to maintain essential water supplies to homes and ensure resilient water businesses. No adverse effects are anticipated. supplies for people and businesses. 2 Bristol Water Draft Drought Plan 2021 Strategic Environmental Assessment Environmental Report Ref: ED14443 | Final draft report | Issue number 1 | 29/03/2021 Topic SEA Objective Potential residual effect on sensitive receptors (assuming good Scale of Certainty Duration Permanence Magnitude Value/ Residual Residual practice construction methods) effect : of effect (Short/ of effect of Effect sensitivity of Adverse Beneficial (Small / (Low/ Medium/ (Permanent/ (Low/ receptor (Low/ Effect Effect Medium Medium/ Long) temporary) Medium/ Medium/ High) / Large) High) High) Water 4.1 To avoid adverse The appeals for restraint are considered to have a beneficial impact on the Medium Medium Short. Temporary Low Medium None Minor impacts on surface and water environment, acknowledging that reduced consumer demand for (beneficial) beneficial groundwater levels and water will result in a reduced requirement for abstraction from water flows, including when this resources in the Bristol Water operating area. No adverse effects are impacts on habitats. anticipated. 4.2 To protect and Reductions in demand for water from the appeals for restraint would result Medium Medium Short Temporary Low Medium None Minor enhance surface and in a reduced requirement for abstraction from Bristol Water’s sources. This (beneficial) beneficial groundwater quality and will reduce associated impacts to surface water and groundwater quality in protect and enhance drought conditions. No adverse effects are anticipated. estuarine waterbodies. 4.3 To ensure appropriate The appeals for restraint are considered to have a minor beneficial impact Medium Medium Short Temporary Low Medium None Minor and sustainable on water abstraction management, acknowledging that reduced consumer (beneficial) beneficial management of demand for water will result in reduced abstraction at Bristol Water’s abstractions to maintain sources. No adverse effects are anticipated. water supplies whilst protecting ecosystem functions and services that rely on water resources. Soils, 5.1 To protect and No impacts on geology, geomorphology and quality or quantity for soils are n/a n/a n/a n/a n/a n/a n/a n/a geology and enhance geology, anticipated as a result of the appeals for restraint in water use. land use geomorphology and the quality and quantity of soils. Air and 6.1 To reduce air pollutant No impacts on air quality are anticipated as a result of the appeals for n/a n/a n/a n/a n/a n/a n/a n/a climate emissions. restraint in water use. 6.2 To reduce greenhouse The appeals for restraint will not involve any increased resource use, or n/a n/a n/a n/a n/a n/a n/a n/a gas emissions. increased greenhouse gas emissions. 6.3 To adapt and improve The appeals for restraint are temporary in nature and will not result in any n/a n/a n/a n/a n/a n/a n/a n/a resilience to the threats of improvement in long-term resilience to the impacts of climate change nor climate change. have any adverse effects. Archaeology 7.1 To conserve and The appeals for restraint are considered to have no direct impact on the Medium Medium Short Temporary Low Low None Negligible and cultural enhance the historic historic environment, heritage assets and their settings and (beneficial) beneficial heritage environment, heritage archaeologically important sites. There is the potential for reduced assets and their settings consumer demand for water and consequently reducing abstraction at and protect Bristol Water’s sources; potentially reducing any impacts of drought-related archaeologically important effects on archaeology and cultural heritage assets. sites Landscape 8.1 To protect, enhance The appeals for restraint are considered to have no direct impact on Medium Medium Short Temporary Low Low None Negligible and visual the quality of and improve landscape and visual amenity or any changes to access to the countryside (beneficial) beneficial amenity access to designated and or open space. There is the potential for reduced consumer demand for undesignated landscapes, water and consequent abstraction at Bristol Water’s sources. This could townscapes and the potentially minimise any impacts of drought-related landscape or visual countryside. impacts. 3 Bristol Water Draft Drought Plan 2021 Strategic Environmental Assessment Environmental Report Ref: ED14443 | Final draft report | Issue number 1 | 29/03/2021 Increased leakage detection and repair activities Topic SEA Objective Potential residual effect on sensitive receptors Scale of Certainty Duration Permanence Magnitude Value / Residual Residual (assuming good practice construction methods) effect : of effect (Short/ of effect of Effect sensitivity of Adverse Beneficial (Small / (Low/ Medium/ Long) (Permanent/ (Low/ receptor (Low / Effect Effect Medium / Medium/ temporary) Medium/ Medium / High) Large) High) High) Biodiversity, 1.1 To conserve and Construction activities associated with leakage detection Flora and enhance biodiversity, and repair activities may result in disturbance to local Fauna including designated habitats and species during the works. The majority of Temporary Low sites of nature works are anticipated to be in an urban setting. Assuming Low (adverse) conservation interest best practice construction methods, impacts of the Medium (adverse) (adverse) Negligible Minor High Short Medium and