Logic Model Homework Assignment
Directions: Read through the SWS program description, answer the questions about SWS, and then complete the logic model for this program. This assignment is due prior to Live Session 6.
The SafeWater System (SWS) Program
Program Description
Over one billion people around the globe currently lack access to an improved water supply, and many more gather water from improved sources and then store it unsafely in their homes.The Safe Water System (SWS) is a water quality intervention that employs simple, robust, and inexpensive technologies appropriate for the developing world. The SWS program has been implemented in 19 countries on five continents. The objective is to make water safe through disinfection and safe storage at the point of use. The intervention consists of three components:
1. Point-of-use treatment of contaminated water using sodium hypochlorite solution purchased locally and produced by a local manufacturer or in the community from water and salt using an electrolytic cell.
2. Safe water storagein plastic containers that have a narrow mouth, lid, and a spigot to prevent recontamination.
3.Behavior change techniques, including social marketing, community mobilization, motivational interviewing, communication, and education. In Ethiopia alone, over 5,000 community health agents were trained to disseminate knowledge to the public.These activities increase awareness of the link between contaminated water and disease, the benefits of safe water, and hygiene behaviors, including the purchase and proper use of the water storage vessel and disinfectant.
As a dilute chlorine solution, SWS decreases the incidence of diarrhea by approximately 50% by inactivating bacteria, viruses, and most parasites. One capful of solution typically treats 20 liters of water (roughly 5 gallons), which is the size of most jerry cans and containers that people use to obtain and store their water.SWS costs less than one penny per day to treat the drinking water for a family of six.SWS can be distributed through the private commercial sector, public institutions including clinics and schools, and through networks of non-governmental organization, faith-based organizations, and community-based organizations. SWS is attractively branded in every country in the local language. A key component of this intervention involves behavior change communication campaigns that encourage and educate target populations on the importance of proper water treatment, storage, and hygiene.
The Safe Water System was designed to provide safe drinking water for populations who can only obtain their water from:
1. Surface water sources such as rivers or lakes
2. Potentially contaminated groundwater wells, particularly open, shallow wells
3. Piped systems where water is inadequately treated or flow is intermittent, allowing contamination through leaks where pipes are connected
4. Piped water systems in which intermittent flow requires households to store water
5. Water tankerswhose source of water is not safe or the storage tank is not likely to be clean.
Other potential target populations are in areas where water collection containers are not cleaned before filling them with water or wide-mouth containers are used to collect and store water. Disinfection of the source water may not always be necessary in these cases (e.g., if the source water is safe) but the practice of disinfection prevents recontamination of water in the home and supports hygiene improvements in the home.
Outcomes
• The SWS improves microbiologic drinking water quality.
• The SWS prevents diarrhea.
• The SWS improves the quality of beverages sold by street vendors.
• The SWS improves the quality of bulk oral rehydration solution (ORS).
• The SWS can be effectively marketed.
• Short and medium-term use of the SWS can be enhanced by motivational interviewing.
• Water stored in clay pots can be effectively treated with sodium hypochlorite solution.
Source: CDC: http://www.cdc.gov/safewater and PSI: http://www.psi.org/our_programs/products/water_chlorination.html
1. Identify an explicit potential target population:
__________________________________________________________________________________________________
2. State a SMART health objective for this program:
___________________________________________________________________________________________________
3. State a SMART educational/intermediate objective for this program:
__________________________________________________________________________________________________
4. State two SMART behavioral objectives for this program:
1) ____________________________________________________________________________________________________________2)
____________________________________________________________________________________________________________
5. Please populate the logic model (page 3).
Inputs/Resources
Activities Outputs Outcomes
(Intermediate/Educational Outcome(s)
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Behavioral Outcome(s)) Impact
(Health Outcome)
