annexures - Indian Institute of Technology Roorkee

Chapter - 7 Community Sanitation Scheme(xiii) Availability of the nearest sewer line, if any, to which wastewater generated from thefacility could be connected should be indicated on maps.(xiv) Once the scope of work is defined, the location of the facility should be finalised inconsultation with the local body and implementing agency. Availability of suitable land asnear as possible to the target population should be examined in consultation with theland owning authority. These must be plotted clearly on the map.(xv) Surveys and field investigations must be supervised at various milestones at senior levelsin the implementing agency to ensure quality DPRs. This exercise may take some time butwould eventually be beneficial in improving sustainability of the programme.7.4 SAMPLE SURVEYIf the number of slums and unauthorised colonies and population to be covered is very largeand complete survey will be expensive and time consuming, sample survey of 15% householdsof each slum and unauthorised colony should be carried out.7.5 INFORMATION AVAILABLE FROM SURVEYa) Number of persons per family.b) Education level of head of familiesc) Occupation (head of families):d) Character of houses: The distribution of houses in terms of type of construction is asbelow:Pucca, semi puccca, kutcha, hutse) Percentage of houses having electricity:f) Percentage of houses having water supply:g) Percentage of houses having latrine connected to sewer / attached to septic tank withsoak pit / without soak pit / pit latrine, and percentage of slum population resorting toopen defecation.h) Percentage of people willing to pay for using community toilet:i) Number of authorized and unauthorized slums.j) Number of slums having sewersk) Number of slums having septic tank facility of the effluent from septic tank to flowthrough open drains.7.6 LOCATION OF COMMUNITY TOILETSBased on the outcome of field survey, sites for new public toilets should be identified. Theseshould be so selected as to minimize likely nuisance to the neighbourhood. It should beconnected to the sewer line wherever possible. The sites should be discussed with theresidents of area who will use them.7.7 DESIGN CONSIDERATIONS7.7.1 Sizei. The size of toilet blocks may vary from 5, 10 to 15 and 20 seats depending upon the spaceavailable and number of users.60