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MDG Needs Assessment Tools Water and Sanitation Needs Assessment Model USER GUIDE DRAFT v. 1.0 24 July 2005This User Guide is designed to be used in conjunction with the Water and Sanitation Needs Assessment model available at http://www.unmillenniumproject.org/policy/index.htm This User Guide was prepared by Alice Wiemers Comments and suggestions are welcome and should be sent to the author at [email protected] TABLE OF CONTENTS I. NEEDS ASSESSMENT OVERVIEW...........................................................................1 MDG Needs Assessments...........................................................................................1II. WATER AND SANITATION MODEL BASICS.........................................................4 Objective.........................................................................................................................4 Scope...............................................................................................................................4 Basic Sanitation..............................................................................................................5 Wastewater infrastructure is needed to support use of sewered technologies............6 Hygiene and Education...................................................................................................6 Data Requirements..........................................................................................................8III. USING THE WATER AND SANITATION MODEL..............................................10 Modeling Methodology................................................................................................10 The Worksheets............................................................................................................12 Overview sheet..........................................................................................................12 Interventions.............................................................................................................12 Population Data.........................................................................................................12 Coverage...................................................................................................................12 Costs..........................................................................................................................15 Water Supply and Sanitation....................................................................................16 Hygiene and Education.............................................................................................17 Organizing Data........................................................................................................17 Resource Needs.........................................................................................................18 Summary Sheet.........................................................................................................21 Region Aggregator....................................................................................................21 Totals check--sums to access inputs above?yesyesIV. ADAPTING THE MODEL........................................................................................23V. CHECKING RESULTS AND TROUBLE-SHOOTING............................................25 Checking Results......................................................................................................25 Trouble-shooting.......................................................................................................26 Unrealistically high or low resource estimates.........................................................26VI. OTHER RESOURCES AND FURTHER READING...............................................28 Models.......................................................................................................................28 Needs Assessment and MDG-Based PRS Resources...............................................28 I. NEEDS ASSESSMENT OVERVIEW This user guide is a step-by-step introduction to the UN Millennium Project’s water and sanitation 1 needs assessment tool. It assumes that users have read the Handbook and have a basic familiarity with the fundamentals of an MDG Needs Assessment, but does not presume any prior technical knowledge of MDG needs assessment tools. The guide should be used concurrently with the water and sanitation needs assessment tool, available at www.unmillenniumproject.org/policy . In conjunction with the Handbook, it aims to help users embark on an MDG-based water and sanitation needs assessment
Based on data input by the user, the water and sanitation needs assessment tool estimates the associated costs to support water and sanitation interventions as part of a strategy for meeting the MDGs at the national level. These estimates, along with estimates from other thematic areas (education, gender, rural and urban development, etc.) will help provide the basis for a national investment strategy for meeting the Millennium Development Goals
MDG Needs AssessmentsMDG needs assessments are the analytical building blocks for developing MDG-based povertyreduction strategies. They aim at helping governments to answer the question, “Whatinvestments will it take to meet the MDGs by 2015?” This approach marks a fundamental shiftfrom current practice to strategy design, which asks the question: “How can governments bestallocate existing resources?” Traditional sectoral work is thus based on forming annual budgetallocations in a resource-constrained setting. An MDG Needs Assessment aims instead to helpcountries identify what resources are needed each year over a 10-year period to meet the MDGsby 2015. The resulting estimates can then be core inputs to an MDG investment strategy,including sequencing and capacity building, which, along with a policy and implementation outline,comprise a 10-year framework for meeting the MDGs
The Handbook specifies an approach to creating an MDG-based PRS, and describes in detail thesteps required to conduct an MDG needs assessment. This introduction will briefly outline thesesteps, and the role that the water and sanitation model play in the overall MDG needs assessmentprocess
First and foremost, the MDGs need to be interpreted at the country level. This entails definingquantitative outcome targets that are meaningful at the national level, and defining the areas ofintervention that are needed to meet each of the MDGs. For water and sanitation, the MDGtarget aims to halve the proportion of people without sustainable access to safe drinking water by2015, but countries may wish to alter the target – for example, by aiming to achieve it before 2015
Once outcome targets have been set, there are four steps in conducting a needs assessment,illustrated in Figure 1 and described below
1 UN Millennium Project. Forthcoming 2005. Preparing MDG-Based Poverty Reduction Strategies: A Handbook of BestPractice
Figure 1: Steps in an MDG Needs Assessment1 – Develop list of interventionsUsers first need to define the critical interventions required to meet the MDGs. As outlined in theHandbook, interventions are defined broadly here as goods, services and infrastructure that need tobe provided to generate outcomes. For water and sanitation, interventions include, for example,behavior change program. The UN Millennium Project recommends that thematic workinggroups be organized as part of the MDG-based planning process. These groups will help toguide the selection of a comprehensive set of interventions that comprise each investment cluster [see Step 2 of the Handbook]. In many cases countries will have already elaborated suchinterventions in their national and sectoral planning documents. These documents should be astarting place for defining MDG interventions. The UN Millennium Project has drawn up samplelists of interventions to reach the MDGs that can also be an input into thematic working groupdiscussions. This list will then have to be modified and adapted to national needs. The waterand sanitation interventions from these lists are the basis of the interventions outlined in thismodel
2 – Specify targets for each set of interventionsOnce national outcome targets have been set and interventions have been identified, countriesneed to determine who the interventions should reach, what proportion of this population willneed to be covered by 2015, and how many units of each intervention are needed to reach them
This requires setting targets for each intervention and input quantity ratios that relate interventionsto the people they reach
Where relevant, targets and their corresponding interventions can be disaggregated by age andgender as well as by urban and rural areas. For example, urban and rural areas often require 2distinct interventions and technologies or face very different unit costs. Disaggregation bygender and age will help countries better target services to populations in need and to adjust theirservice delivery to a changing demographic profile. You will find advice on using the models toreflect additional disaggregation in Part Four of this guide: Adapting the Model
2 A clear distinction between urban and rural needs is particularly warranted for the following categories: watersupply and sanitation, transport infrastructure and energy services
3 - Estimate resource needsThe next step is to estimate the financial, human and other resources needed to achieve theidentified targets. The UN Millennium Project’s water and sanitation model is designed to assistcountries in making these estimates. This Excel-based needs assessment tool integrates theinformation input by the user to generate these estimates. It uses outcome targets, coverage targetsand ratios, and unit costs to develop aggregate as well as intervention-by-intervention estimates ofresource requirements. Similarly, simple ratios between beneficiaries, HR parameters, andinfrastructure yield the non-monetary results. A simple ten-year scale up path allows users to mapout the yearly investments needed to meet 2015 targets. The model aims to be transparent andadaptable to national needs. This user guide focuses largely on explaining how to use and adaptthis model
4 - Check ResultsWith any needs assessment, the results should be carefully reviewed to make sure that they areaccurate and adequate to reach the MDGs. While every country will obtain different results basedon local circumstances, the UN Millennium Project has carried out preliminary needs assessmentsin several countries that can serve as a basis for comparison. These results provide some guidanceon the order of magnitude of the costs for reaching the MDGs in a subset of low-incomecountries. See the Handbook for sample results across areas and countries
The water and sanitation needs assessment is part of a broad MDG strategy that covers allinvestment areas. Once needs assessments are completed for all investment clusters, they need tobe aggregated and integrated as a first step in creating a ten-year MDG framework. As part of thisconsolidation process, countries should produce one summary budget outlining the projectedexpenditures for meeting the MDGs. In practice, this means that each model should contain asummary output page that can be easily summed and manipulated across clusters. This model has three types of summaries. The first, “Summary” sheet that presents yearly results in areader-friendly format. The second, “Results Presentation” sheet presents a summary of the2005, 2010, and 2015 costs in total and per-capita terms, as well as totals and averages over theperiod. The third, “Results Transfer” sheet is formatted for incorporation in the UN Millennium 3Project’s “financing model”
This user guide is designed to explain the use of the needs assessment tool as clearly and simply aspossible. As you work through it, please feel free to contact the UN Millennium Project with anycomments, questions, or suggestions for improvement. We look forward to hearing from you andwish you good luck in the needs assessment process
3 In addition to aggregation, this model allows countries to calculate the investments that can be financed byhouseholds and domestic government, and the remaining needs that will have to be financed by other sources suchas ODA
II. WATER AND SANITATION MODEL BASICSObjectiveThe objective of the Water and Sanitation model is to estimate the resources required for acountry to achieve Millennium Development Target #10: Halve, by 2015, the proportion ofpeople without sustainable access to safe drinking water and basic sanitation, as well as theinterventions in water and sanitation needed to meet other MDGs (such as the health andenvironmental MDGs). The model identifies the interventions needed to scale up access to safewater and basic sanitation meet the target by 2015, and costs the associated resource requirementsfrom the bottom up
ScopeMillennium Development Target #10 calls for countries to halve, by 2015, the proportion ofpeople without sustainable access to safe drinking water and basic sanitation (based on 1990levels). To reflect the different areas of intervention needed to meet target 10, this model includesinterventions in the categories of water supply, basic sanitation, wastewater treatment, and hygieneeducation. This model is a total cost model, meaning that it calculates the resources needed toreach the entire target population, including the recurrent costs of interventions for the populationthat currently has access to safe water and basic sanitation
Water supply interventions bring safe drinking water to users by the extension, rehabilitation, andoperation of technologies that are deemed “MDG compatible” in the national context. Thegeneral list of technologies to be adapted to country needs includes household connections, publicstand posts, boreholes with handpumps, rainwater collection, and protected dug wells. Themodel allows you to define the acceptable types of water supply technologies, and the specific mixof technologies that will satisfy MDG needs in different areas of the country. It includesinterventions in construction, rehabilitation, and operations
Particular attention should be paid to the different technology needs of urban and rural areas
Any strategy for improving access to water supply must differentiate between urban and ruralareas since communities’ needs and appropriate technology options will differ. For example, sincewells are often more difficult to operate and less hygienic in dense urban settlements, to addressurban water supply a greater emphasis needs to be placed on household connections andstandpipes. Meanwhile, groundwater remains underutilized as a resource for drinking water supplyin many rural parts of Africa. It can be tapped through investments in wells and boreholes
The choice of the appropriate water supply system depends on factors such as communitypreferences, population density, cost, remoteness, and the local geohydrological profile
Experience over the past two decades amply demonstrates that communities need to be aware ofthe technical choices they need to make and their implications for use and maintenance of watersupply systems (e.g. Black 1998). Where technically and economically feasible, householdconnections are preferable because they facilitate the application of lifeline tariffs or other tariffschemes for water supply that are important to help close the revenue cycle of water providers
Many existing water supply systems are defective or do not function at all. In particular, existingboreholes in rural areas are often in need of major rehabilitation or upgrading. In large cities acrossAfrica high rates of water leakage leave 39 percent of water unaccounted for (WHO and UNICEF2000a). In such instances local authorities need to invest in the gradual rehabilitation of watersupply systems with a particular focus on repairing leaking pipes, joints and valves; preventing theoverflow of water reservoirs; and containing illegal water connections
It is often assumed that once adequate infrastructure has been put in place communities canfinance the operating costs of water supply schemes. This is not always the case, particularly inpoor urban areas and rural regions with low groundwater tables. In all cases it is important toallocate adequate human and financial resources to the operation and maintenance of water supplyand sanitation infrastructure. Annual O&M needs may amount to as much as 5-10 percent of theinitial capital cost
Basic SanitationSanitation interventions follow the same logic as water supply interventions, focusing on theextension, rehabilitation, and operation of the sanitation technologies that will allow the country toreach Target 10. The UN Millennium Project Task Force on Water and Sanitation defines access 4to improved sanitation as “the access to, and use of, a facility for excreta and sullage disposal thatprovides privacy while at the same time ensuring a clean and healthful living environment both athome and in the immediate neighborhood of users.” The general list of technologies to beadapted to country needs includes conventional sewerage, simplified sewerage, septic tanks, pourflush toilets or latrines, VIPs, and improved pit latrines (two pit)
Sanitation systems can be broadly separated into two categories. First are networked seweredtechnologies that rely on a centralized trunk infrastructure combined with off-site waste disposal
5Here, this includes conventional and simplified sewerage . Second are decentralized systems, suchas improved singe pit latrines, ventilated improved pit latrines (VIP), pour flush toilets or septictanks (c.f. WHO and UNICEF 2000a)
As with water supply technologies, a distinction between rural and urban needs is usuallynecessary. In densely populated urban areas a greater need exists for networked sanitationsystems, which tend to be more expensive. Rural sanitation technologies usually consist ofdecentralized systems. Again, the choice of system depends on local characteristics andpreferences. As with water systems, it is important to allocate proper human and financialresources to the operation and maintenance of sanitation infrastructure, including the regularemptying of pit latrines and other decentralized sanitation systems. Annual O&M requirementscan amount to 5-10 percent of the initial capital cost
4 Defined as domestic sewage resulting from bathing and the washing of dishes and clothes in house
5 Sewerage systems using a simplified design standard, but with the same functionalities as traditional sewerage(e.g. condominial design used in countries like Bolivia and Brazil)Wastewater infrastructure is needed to support use of sewered technologies
The definition of basic sanitation does not yet include the treatment of sewage from publicsewerage systems. However, traditional and simplified sewerage systems require safe disposal ofthe excreta away from the neighborhood. In large and high-density cities treatment of the effluentwastewater may be necessary. Likewise, wastewater treatment may be required to minimizenutrient loads carried into fragile freshwater ecosystems, such as small or shallow lakes, which mayotherwise be subjected to eutrophication. While sewerage and wastewater treatment will not berequired in all situations, in some cases public investments may be justified on economic,environmental and public health grounds. Therefore, wastewater treatment interventions areincluded in this model as part of the package of water and sanitation interventions that may berequired to meet the full set of MDGs
Options for wastewater treatment can be broadly separated into primary, secondary and tertiarytreatment. In the first case all forms of settleable and suspended solids are removed throughsimple sedimentation processes or other means, while the second adds biological treatment of theeffluent. Tertiary treatment removes chemical pollutants like phosphates, nitrates, and volatileodor-causing substances from the water. In many instances – particularly in warmer climates –cost effective solutions, such as waste stabilization ponds, exist that combine primary andsecondary treatment. However, they require a lot of open space, which may be in short supply inurban areas. Where available space is a constraint or if industrial effluents need to be treated, moreadvanced treatment plants may need to be considered. Their high capital and operating cost canadd substantially to the cost of meeting the water and sanitation, as well as environmentalsustainability targets in urban areas
Hygiene and EducationWe emphasize the critical importance of providing hygiene education in conjunction with waterand sanitation infrastructure . Only by ending unhygienic sanitation practices, such as opendefecation and improper disposal of excreta, can the full health benefits of improved water supplyand sanitation be achieved (e.g. Pruess et al. 2002, Curtis and Cairncross 2000). In many instancesthe largest health improvements can be generated through targeted hygiene education promotinghand washing with soap (Kotloff et al 1999) and proper on-site water storage to prevent microbialcontamination
Public education and awareness programs can take a number of forms, including communityworkers, mass media campaigns, formal integration of water and hygiene education into schoolcurricula, and so forth. The best approach typically comprises a mix of these interventions and willbe time and context specific (Waterlines 2004, UNICEF 1999). Experience from around the worldshows that it typically takes a long time – sometimes up to five years – for behavior changeprograms to have an impact. For this reason it is necessary to implement long-term programs thatsystematically target the entire population in need
Included in this model are interventions for behavior change programs accompanying rollout ofsanitation infrastructure, hygiene education at primary schools, and country-wide mass mediacampaigns
Limitations of the model. This model provides a framework for modeling direct costs of achieving a50% reduction in the number of people without access to safe water and basic sanitation and forthe water and sanitation related interventions needed to meet other MDGs. However, severalwater and sanitation related investments that countries may wish to consider are not included inthe general UN Millennium Project water and sanitation model
The first additional interventions that countries may wish to include are larger-scale interventionsin water resources infrastructure and management. These may be needed to meet Target 10 andto align national water and sanitation strategies with the goal of environmental sustainability
Countries’ needs for improving water resources infrastructure and management vary tremendouslyacross countries and therefore cannot be analyzed using a standardized investment model. As partof their needs assessments countries may identify what needs to be done to update and/ordevelop new water resources management plans as well as additional water storage capacity to bebuilt to improve water resources infrastructure and management to promote hydropowerdevelopment, flood and drought management, and control of desertification. Correspondinginvestment needs are highly site specific and would need to be evaluated on a case-by-case basis
Similarly investments in irrigation and other infrastructure to improve water management foragriculture are best quantified through detailed project studies. Some suggestions for includingwater resources infrastructure and management interventions are provided in Part Four of thisuser guide: Adapting the model
In addition, countries may need to include interventions to improve water quality. While theMDG Target does not set quality standards for drinking water, it is clear that surface and in someinstances groundwater resources in several African countries are too polluted for humanconsumption without prior treatment (Showers 2002). According to the Global Water Supply andSanitation Assessment Report over 35 percent of urban water supply violates national standardswith regards to microbiological, chemical, physical or aesthetic characteristics (WHO andUNICEF 2000a) Where possible, communities should use water sources that do not requiretreatment, such as groundwater, even if initial capital costs may be higher. The lower operatingcosts and reduced need for maintenance will often exceed differences in capital costs. Wheretreatment becomes necessary, several technology options become available. They includesettlement tanks, roughing filters, slow sand filters, artificial groundwater recharge, and chemicaltreatment of drinking water
Users may also note that interventions for hospitals, health centers, and schools are not includedin this model. These interventions fall into the category of interventions that could easily fall intoseveral different investment areas. The UN Millennium Project has included these interventionsin the education and health resource estimation models, because they will most often beimplemented as part of the education and health strategies. Countries should make sure thatthese investments, like other “cross sectoral” interventions, are included in one of the resourceestimation models used for a complete MDG needs assessment
Data RequirementsThe education model will require users to supply a number of data inputs and parameters. Theseinputs fall into five basic categories: demographic data, outcome and coverage targets, inputquantity ratios, and unit costs
• Demographic data are needed to establish basic population parameters. Required inputs include population size, average household size, and number of students in primary school
This data are typically found in national population censuses and statistical databases. The user should include this information for the “zone” covered in the model (for example, rural or urban population). Advice for disaggregating by zones is in Part Four of this user guide: Adapting the model
• Outcome targets define the outcome objectives of the model. In other words, they represent the state of the world the model is trying to achieve. In the case of water and sanitation, these outcome objectives include reducing by 50% the proportion of the population without access to safe drinking water and by 50% the population without access to basic sanitation (based on 1990 levels)
• Coverage targets define the proportion of the population that will be reached by a given intervention as part of a package of interventions needed to meet outcome targets. For water supply and basic sanitation interventions, the coverage targets for each type of technology will add up to the overall target of 50% gap reduction (such that each targeted household is reached by one type of technology). In addition, all existing infrastructure that is defective is assumed to be rehabilitated over the period (such that the percentage of defective infrastructure is assumed to go to zero by 2015). For wastewater and hygiene and education interventions, users define constant coverage parameters (such as % of primary school students receiving hygiene education, or % of existing sewerage connections newly fitted with wastewater treatment) according to national needs.
• Input quantity ratios define the relationship between beneficiaries and inputs., e.g. households served by one public standpost. They are necessary to calculate how many units of each intervention will be needed. In the water and sanitation model, input quantity ratios should be set at “best practice” levels (i.e. not to reflect current ratios of households to infrastructure).
• Unit costs describe the cost of a single intervention. Some examples include the cost of installing a single septic tank, the cost of education one child in basic hygiene, or the cost of behavioral training accompanying the rollout of one piece of sanitation infrastructure.
6 These costs should be based on average unit costs for the selected intervention. In some cases, costs are also calculated from other costs on a percentage basis, for example in the case of O&M or rehabilitation costs (given as % of capital costs) These data can be derived from a number of sources, including past procurement contracts or current market rates
6 Needs assessments could in theory use marginal costing to estimate resource requirements, but in practice thisinvolves making quite demanding assumptions about the pattern of marginal costs, for which there is frequentlyinsufficient empirical evidence. We account for differential marginal costs in two ways. First, we permitdisaggregation of target populations based on relative unit costs (e.g. urban needs can be modeled separately fromrural needs). Second, the model includes specific interventions that target hard-to-reach populations, such assubsidies for girls’ education
Because the model deals in constant dollars, costs are treated as static, i.e. a household waterconnection costs as much in real terms in 2005 as it does in 2015
KEY POINTS: 1. This model calculates the full cost of achieving Millennium Development Target 10
2. The model covers water supply, sanitation, wastewater treatment, and hygiene and education, which are important components of achieving the MDGs
3. Required inputs include demographic data, outcome and coverage targets, quality parameters (input quantity ratios and defectiveness ratios), and unit costs. These can be derived from research, the experience of well-performing countries, national statistics, and records from relevant line ministries
III. USING THE WATER AND SANITATION MODEL Modeling MethodologyThe model follows the general needs assessment methodology outlined in the Handbook. As youwill remember, this methodology asks users to define the interventions that are required to meetthe Millennium Development Goals, define targets associated with these interventions, and thendetermine the resources that will be required to implement them fully
• Interventions are the specific inputs that are needed to deliver services effectively. They include water and sanitation infrastructure (including construction, rehabilitation, and operation of infrastructure), wastewater treatment (primary, secondary, and advanced treatment options) and hygiene and education activities (including behavioral change programs accompanying rollout, hygiene education in primary schools, and mass media campaigns)
• Outcome targets, coverage targets, input quantity ratios, and unit costs are all described above
• Resource requirements are calculated using simple multiplication. For most interventions, the total population (or total number of households) is multiplied by coverage targets to get the population covered by a particular intervention, which is then multiplied or divided by input quantity ratios as appropriate to get the number of units required of each intervention. Finally, the required interventions are multiplied by unit costs, providing the total resource requirements for each year. For rehabilitation and wastewater treatment interventions, coverage parameters are multiplied by total number of units to determine the number of units requiring the interventions, and then multiplied by unit costs
Methodology for calculating resource requirementsThe WorksheetsOverview sheetThe Overview sheet provides a general overview to the model
Interventions The Interventions page allows the user to define interventions and associated intervention targets
The page is divided into four sections that correspond to the four general areas of water andsanitation interventions addressed by the model: water supply, basic sanitation, wastewatertreatment, and hygiene and education. In each area, the Interventions page lists categories ofspecific interventions that form the basis of the needs assessment exercise
The cells on this page are linked to relevant fields on the other worksheets, so changingintervention names on this page will change them throughout the model. We will return to thisfeature in Part Four: Adapting the Model
Population DataOn this page, the user enters country-level population and demographic data. Required datainclude population size, average household size, and number of students in primary school. If theuser wishes to calculate separate estimates for rural and urban areas (strongly suggested) or forother regional or demographic “zones”, data should be entered for only one zone per model. SeePart Four for more details on disaggregated assessments. Data need to be entered for the baseyear, and growth projections need to be made for subsequent years until 2015
It is important that these data are as recent and as accurate as possible, and that growth projectionsare based on reasonable assumptions. These data underpin the entire costing model, so it isessential to verify their accuracy. Population data and projections can be obtained from nationalcensus data, as well as from the UN Population Division
NB: When conducting needs assessments that cover more than one sector, users should check tomake sure that the same population data are used across different models to ensure consistency ofresults
CoverageThe Coverage section permits users to enter the coverage targets and input quantity ratios definingthe reach of water and sanitation interventions. Coverage targets work similarly for water supplyand basic sanitation interventions, so we illustrate their use with examples from sanitation
Coverage targets for wastewater and hygiene and education interventions are explained at the endof this segment
Water supply and basic sanitation coverage targets are split into three sections: access statistics,type of infrastructure, and % of infrastructure that is defective
T 2015 targets. The “access” section calculates the overall percentage of the population that willneed access to basic sanitation by 2015 to meet Target 10. Users enter data from 1990 andcurrent 2005 levels. The 2015 column is filled in automatically, by halving the proportion of thepopulation without access, based on 1990 levels. The difference between current levels and thistarget is how much the overall package of sanitation interventions will scale-up over the 10 yearperiod
Teach technology option. For the 2005 column, users should input the current percentage ofhouseholds with access to each type of technology. These percentages should ADD UP to the 7“access 2005” data that you entered above . In the 2015 target column, users define the levels ofaccess to each technology—the “target intervention mix”—for which the water and sanitationstrategy aims. These percentages should add up to the access target for 2015. For example, inthe figure above there are 6 MDG compatible sanitation technologies defined. The currentcoverage of each—conventional sewerage at 0.0%, simplified sewerage at 1.9%, septic tanks at7.6%, pour flush toilets at 0.8%, VIPs at 0.0%, and Improved Pit Latrines (Two Pit) at8.7%—sum to the 2005 access figure of 19.0%. The target access figure, 53.2%, is divided intothe access figures for each of the technologies—conventional sewerage at 0.0%, simplifiedsewerage at 16.10%, septic tanks at 11.0%, pour flush toilets at 5.10%, VIPs at 0.0%, andImproved Pit Latrines (Two Pit) at 21%. The line in red text, “Totals check—sums to accessinputs above?” contains a formula to check that the technology breakdown adds up to the overallaccess percentage. Note that although each currently used technology is scaled up, the targetintervention mix shifts the relative contribution of each to the overall access rates, focusing moreheavily on simplified sewerage and pour flush toilets and less on septic tanks and improved pitlatrines. Two technologies, conventional sewerage and VIPs, are not included in either mix,indicating that they were In the last section, “% of infrastructure that is defectiv7 This correspondence is by definition. Total access to water supply and sanitation technologies should be thecombined percentages of people with access to technologies defined as “MDG-compatible”emodel assumes that this proportion will decrease to zero over the period, such that all currentlydefective infrastructure is rehabilitated by 2015. Coverage inputs for wastewater treatment andfor hygdeach line item. Wastewater TreatmentCurrent % of sewered connections fitted with wastewater treatmentPrimary treatm
Needs Assessment and MDG-Based PRS Resources..28 I. NEEDS ASSESSMENT OVERVIEW This user guide is a step-by-step introduction to the UN Millennium Project’s …
Based on data input by the user, the water and sanitation needs assessment tool estimates the associated costs to support water and sanitation interventions as part of a strategy for meeting the MDGs at the national level.
This user guide is a step-by-step introduction to the UN Millennium Project’s water and sanitation needs assessment tool. It assumes that users have read the Handbook 1 and have a basic familiarity with the fundamentals of an MDG Needs Assessment, but does not presume any prior technical knowledge of MDG needs assessment tools.
It includes guidance on a variety of data collection techniques in addition to assessment checklists for water, sanitation, and public health promotion. Uses: The two primary purposes for conducting a water, sanitation, and hygiene (WASH) needs assessment are to: Inform response priorities and plans.
The water and sanitation model is designed to be generally applicable to a broad range of countries and systems, but countries may wish to adapt it further to local circumstances. Here, we discuss four adaptations that countries may wish to make to the model: dropping interventions, changing interventions, adding interventions, and adding regions.