• WHAT: a multi-phase water, sanitation, rainwater harvesting, and organic composting project.

• WHERE: village of (Sam) Mbollet in The Gambia, Africa.

• WHO: EWB teamed with GLOVE (Gambian LOngevitey through Village Enterprise) NGO and villagers.

• HOW: find viable and sustainable solutions to a variety of development issues.

Project ReviewProject Review

Assessment TripAssessment Trip

• Establish a bond with GLOVE and with the village of Sam Mbollet for a long-term working relationship.

• Fact finding mission to determine the village water issues, and if time permits, sanitation issues.

GLOVE and the VillageGLOVE and the Village

Abdoulie, Yunisa, Jackie, Alhagy, Haddy, Magic, Mariyama

The Imam- village cleric

Village chief

The VillageThe Village

Health Assessment

Water Quality Testing

Drawdown Testing

Nicole…..

Central WellCentral Well

• Services 450 people.• Community wants to upgrade this well.

Department of Water

Resources

11/2008

EWB kits

6/2009

Acceptable Values for

W.H.O.

Total Coliform

>100/100mL

+

+ Nil

Nitrates 17 mg/L >50 mg/L 10 mg/L

Nitrites 0.012 mg/L 0.15<x<0.3 0.03

pH 4.67 5 6.5-8.5

T (˚C) 29.5 29

Turbidity clear clear clear

Odor none none noneColiform levels (indicators of pathogenic bacteria), nitrate levels, and

nitrite levels are above acceptable W.H.O. values. Ph is low.

Marty

• Dimensions of well

• Drawdowns results.

Barrel WellBarrel Well

• Often used for drinking water (services about 100 people).

• Runs dry for periods of time at the end of the dry season.

• GLOVE wants to upgrade this well by digging it deeper, concrete lining it, capping it, and adding a rope pump.

Department of Water

Resources

11/2008

EWB kits

6/2009

Acceptable Values for

W.H.O.

Total Coliform

48/100mL

+

+ Nil

Nitrates 3.2 mg/L 5 mg/L 10 mg/L

Nitrites 0.006 mg/L <0.15 0.03

pH 4.6 5 6.5-8.5

T (˚C) 29.9 29

Turbidity Clear clear clear

Odor none none noneColiform levels (indicators of pathogenic bacteria) are above acceptable

W.H.O. values. Ph is low.

Marty

• Dimensions of well

• Drawdowns results.

Hand-Pump WellHand-Pump Well

• Built ~25-30 years ago by Germans.• Breaks down frequently- parts are expensive and hard to find; only 1

repairman for 50 mile radius.• As popular as central well when working.• Runs dry during part of the day during the dry season (rainy season??).

Department of Water

Resources

11/2008

EWB kits

6/2009

Acceptable Values for

W.H.O.

Total Coliform

>100/100mL

+

+ Nil

Nitrates 8.8 mg/L >50 mg/L 10 mg/L

Nitrites 0.001 mg/L <0.15 0.03

pH 5.27 5 6.5-8.5

T (˚C) 30.1 29

Turbidity Clear clear clear

Odor none none noneColiform levels (indicators of pathogenic bacteria) and nitrate levels are

above acceptable W.H.O. values. Ph is low.

Immediate Water Problems to be Immediate Water Problems to be AddressedAddressed

• How to clean infected wells?

• How to find source of contamination in hand-pump well?– Need to find data for depth of aquifers,

direction of water flow, groundwater velocity, and soil profile of aquifer.

What the Village Wants from EWB What the Village Wants from EWB (Water)(Water)

• Clean water to drink.

• Central well water pumped to a water tank, that is gravity fed to 5 taps distributed around central well (~40-100 ft away from well).

• Upgrade well being dug for nursery (being built), and clinic (to be built) to same proposed system as central well so taps will be available for school children and clinic (in Oct-Dec).

• Build concrete slabs next to wells for washing clothes.

• Note: GLOVE plans to dig, concrete line, and add rope pumps for two new/upgraded wells.

SanitationSanitation

SanitationSanitation• Use pit latrines to defecate, except rainy season

(3 months) when they “go” out back of their homes.

• Pit latrine collapses during rainy season. It is buried, and a new one is dug following the rainy season.

• Villagers are interested in more sustainable, hygienic options.

• Not addressed-hand washing (Haddy?) and animal fecal matter.

Other random pics