1. Las Delicias, El Salvador Water Supply Project Implementation Proposal Phase I Trip Dates: May 2012 Presented to TAC: March 7, 2012

2. EXTRA SLIDES

3. Piping System Layout New Pipelines Supply Line 1 to new tank (A-B-C) – Length = 365 m + tank connection (assume + 10 m) = 375 m – 1 bend, 1 tee, 3 elbow, 2 valves, 1 exit – 17 m elevation rise + tank height – Hill rises to 643 m then valley falls t0 640 m on connecting road (D-B) – ~175 gpm flowrate Distribution line connection 2a from lower Tramo 3b to lower Tramo 6 (E-F) – 105 m length, elevation change unclear, guess 10 m drop Distribution connection 2b from upper Tramo 3b to upper Tramo 6 (B-D) – 120 m length, 8 meter drop with low point at 640 m (3 m below D) Distribution line 2c from new tank to new connections (C-B-E) – 255 m length, 11 meter elevation drop Waypoints PointLocationElevation ACalle Principal638 m BIntersection at Field 651 m CNew tank655 m DEnd of upper Tramo 6 643 m EEnd of lower Tramo 3b 640 m FEnd of lower Tramo 6 ?? Guess 630 m

4. Proposed update to Water System (section relevant for EWB-MAP modifications) RED lines – supply lines to tank (uphill by pump) BLUE lines – distributions lines by gravity NEW SUPPLY LINE 1 NEW TANK A B C 105 m 20 m 240 m DOWNHILL

5. Design of Valve Boxes from a prior EWB project Adjust Dimensions based on local conditions For Single 4” pipe

6. Thrust Anchor Dimensions Based on 4” PVC PIPE 50 cm Trench Depth Height of Anchor 25 cm Length of Anchor Backing against undisturbed material: 90° BEND: L = 80 cm 45° BEND: L = 40 cm Tee: L = 40 cm