Weeks 12, 13, 14, 15: Work in progress
Weeks 12, 13, 14, 15: Work in progress
The past few weeks have seen some significant and hard won movement for my research here at Dschang. At the behest of the mayor I’ve partnered with the city’s office of technical services to engage in the analysis of a number of recently constructed water sources here in Dschang. The newly constructed/improved sources include 7 wells, 6 boreholes, and a series of 9 spring capture systems with a piped network comprising ~29 standpipes. Using the Cameroonian Ministry of Water and Energy’s (MEE) estimate of 300 persons per public access point leads to a total population served of 12,600.
I’ve undertaken rotating sampling program where at least one component of each source is tested for coliform bacteria (indicative of fecal contamination and corollary to pathogenic virulence) every 2 weeks. In addition to this test for general potability, and second test (heterotrophic plate count) will be performed on the filtration components of the spring capture systems to assess treatment efficacy.
In addition this set of rustic water sources, I will be continuing my analysis of the SNEC treatment plants and piped network. Of the over 80,000 residents in Dschang proper, approximately 30% (~24,000) rely on the SNEC distribution network for their drinking water supplies. My initial analysis of the SNEC system reveals 100% removal of microorganisms indicative of fecal contamination. Though riverine source waters that supply the SNEC distribution system exhibit significant fecal contamination via high total coliform counts, water sampled at several points in the network (including my apartment!) has been contaminant free.
Of the 17 rustic water sources sampled so far over half have exhibited at least some level of contamination, with serious levels present in at least 4 sources. Preliminary analysis of the statistics I collected from local hospitals and clinics on water-borne disease reveals an estimate of 764 cases of water borne disease (typhoid fever, bacterial and amoebic dysentery, ascarsis) admitted in a given month. Such an immediate health effect demands immediate action.
Over the next few months I will continue to explore the possibility of developing point of use household filters after the Potters for Peace model (www.pottersforpeace.org), but will be shifting my primary efforts towards instituting a point of access solution by constructing biological slow sand filters after the www.BioSand.org model at the distribution points themselves. My hope is to engage with the International Water Project (www.WaterProject.org) who has a Cameroonian partner based in Yaoundé, the Cameroonian Life and Water Development Group (www.lwdgc.org). This group has been actively building these filters for rural households in the Northwest province and it is my intention to try and bring them here to Dschang.
