GAMA Technical Group Webinar 17th November 2015 #GAMAresilience - PowerPoint PPT Presentation

GAMA Technical Group Webinar 17th November 2015 #GAMAresilience

Agenda 1. Welcome and introductions 2. Update on programme - Stephen Passmore 3. Use case development - Rembrandt Koppelaar 4. Discussion and ranking session 5. AOB 6. Next steps and Close http://ecosequestrust.org/GAMA

November, 17, 2015

Use Case Selection Purpose The focus of the Resilience.IO prototype model is decision support by providing: • An Integrated status picture of WASH in GAMA • Insights in key WASH planning questions • An exploration of how WASH planning indicators can be met • An examination of future socio-economic development & impacts • An evaluation of potential technology and policy decision options The use cases of particular WASH challenges selected by you today determine the WASH topic focus  What are the priority issues!

Timetable for use cases • Nov./Dec. – Enrich use cases and create first version • January 14 th Webinar – First use case modelled results and discussion • March 10 th Webinar – Discussion of specific use case topic challenges and further improvements • April Workshops – Collaborative small group workshops in Accra • April Launch – Use case demonstration for using prototype model inWASH decision support in Accra • April – Make prototype model and datasets available (downloadable for free online)

Today’s Objectives Model Presentation • Present brief overview of model support • Present a summary of six potential use Use Case cases Presentation • Dialogue on six use cases, priorities, additional challenges and adjustments Dialogue • Scoring of use cases for selection of three to implement Use Case Selection

Model Support Provide visibility on water and wastewater related flows for the entirety of the Greater Accra Metropolitan Area by district for: • Raw water collection/availability • Source water treatment • Potable water distribution • Water use • Wastewater/Sewage collection • Waste water treatment • Sanitation treatment • Long-term socio-economic scenarios

Model Component 1: Raw water collection & water availability Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Limited Raw water Availability Rainfall exploitation Rainfall supply from of source levels of water all sources water sources Surface and groundwater levels

Model Component 2: Source water treatment Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Targets for % Treated Raw water Available access to population potable flow Technologies safe potable access to water supply water safe water Treatment Locations of technologies Investment water capital treatment availability facilities

Model Component 3: Potable water distribution Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Collection Change in % % Connections Water and storage of water loss population to water pipe rationing in of potable due to with pipe network pipe systems water leakages water access on a continuous basis

Model Component 4: Water Usage Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Waste Water Water use Domestic (Temporary) water consumption water usage in litres per Supply produced per sector day per restrictions household by income Non-Domestic Waste Water water usage produced per sector

Model Component 5: Wastewater and sewage collection Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Sewage pipe Human Use of public Waste network Number of excreta sanitation water & collection people with generation facilities human access to excreta Cesspit truck sanitation Sewage pipe collected collection infrastructure per Open drain development disposal environment route outflow

Model Component 6: Waste water treatment Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Proportion Capacity Sewage flow Available of treated target of % of from human technologies waste water waste water wastewater activities before treatment treated per discharge sector Available Availability Waste water before locations for of treatment Usable by- discharge treatment investment technologies products facilities capital produced

Model Component 7: Sanitation treatment systems Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Wastes Capacity % of Specific Available targets for properly human treatment technologies treated before human excreta technologies discharge excreta properly for human treatment Available treated and excreta method locations for Usable treatment outputs facilities

Model Component 8: Long-term socio-economic scenarios Data & Potential Calculated User set Key calculated user set Outputs scenarios indicators Inputs constraints Population Change in Water use Population scenarios population changes due development numbers to population and income Income levels scenarios Change in Income socio- economic development Migration status scenarios

Key outputs for each use case: • Output indicators to assess the best action, such as the costs of providing safe portable water • A cost-benefit style analysis (CBA) to calculate the ratio of:  favourable outcomes  to associated infrastructure operational and investment costs • Gradually varying parameters to be compared to a business-as- usual situation 14

WASH Challenges - Six Use Cases 1. Assess outcomes of ongoing WASH projects and gaps towards meeting macro-level WASH targets for planning 2. Examine possibilities and costs to increase household access to improved potable water sources 3. Calculate capacity needs to end water rationing issues within the existing water pipe network area 4. Examine infrastructures that will meet the challenge of waste water and fecal sludge collection and treatment 5. Improvement of health issues caused by unimproved water access and absence of sanitation infrastructure 6. Increase availability of clean, accessible, and affordable toilet infrastructure

Use Case 1 - Projects & Targets Assess outcomes of ongoing WASH projects and gaps towards meeting macro-level targets for planning - Capacities and time - Calculate combined Input Model use frame of all ongoing effect of on-going projects projects when fully completed -Targets and goals from - Estimate gaps local, national policies and remaining to targets international agreements Modelled use case - 5 to 20 years of - Costs/benefits population, from successful economic status, completion and migration - Additional effort 16 - Socio-economic and possibilities to Scenarios Output scenarios meet targets

Use Case 1 - Projects & Targets Assess outcomes of ongoing WASH projects and gaps towards meeting macro-level targets for planning Projects currently on-going within Example targets include: the GAMA region include: • Increase urban water and • The ADB Accra Sewerage sanitation coverage to 100% Improvement Project (ASIP) by 2025 (Ministry of Water Resources, • The World Bank GH-GAMA Works and Housing WSSDP 2012-2025) Sanitation and Water Project (GH- GAMA) • By 2030 achieve access to adequate and equitable • The DANIDA Sludge Treatment sanitation and hygiene for all Project at “Lavender Hill” and and end open defecation Bolah-Bondeh project (sustainable development goal 6.2) 17

Use Case 2 - Improved Drinking-water Examine possibilities and costs to increase household access to improved potable water sources - Calculate water use - Pipeline connections Model use Input based on population development - Decentralized water supply (boreholes/wells) - Ascertain the most cost effective technologies - Household data and infrastructure Modelled use case -Technology - 5 to 20 years of capacity and population, economic infrastructure plan status, and migration for universal access 18 - Household water to improved potable Scenarios Output use development water

Use Case 2 - Improved Drinking-water Examine possibilities and costs to increase household access to improved potable water sources Approx. 33% lacks access to Supply improved drinking water sources Universal access to such drinking water sources within GAMA Demand

Use Case 3 - Water Rationing Calculate capacity needs to end water rationing issues within the existing water pipe network area - Quantify water - Existing pipeline demand and rationing Input Model use system and rationing strategies schemes - Meet water demand - Water demand with minimal capital from pipe connected investments and consumers operating costs Modelled use case - Operational plan of - Business-as-usual water rationing and - Water rationing what options to end it completely ended 20 - Investment and - Population and operating costs of Scenarios Output water needs increase each obtained plan