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Wil, John and Tamar went to the construction site on Monday 12.15. The walls of the flocculation tank are plastered with cement, and the other remaining walls are standing with bricks. We decided the depth of the exit channel should be the same as the exit box. Originally it was supposed to be deeper. We also decided upon the exact location of the 3 drain pipes for each sed tank (one for draining the tankdrain manifold, one for cleaning floating foam the top of the sedimentation tanktanks, and one for ___draining the sludge box at the end of the tank). We realize it is important to define exactly where all the pipes will go in the drawings in the future.
Construction at the plant will continue until Dec 24. It will continue 27-30th and commence again on the 2nd of Jan. Ing. Wil Serrano will be in communication with Santos, the construction manager contractor while most of the office is on vacation.

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The mechanical engineering students at the UNAH (Universidad Nacional Autonoma de Honduras) presented on their work this semester researching the fabrication of the float in Honduras. There Their report is attached in Spanish. They had difficulty finding materials and the prototype that they constructed did not function. They hope to continue working with us on the AguaClara project in future classes. Currently we have plans to bring some of the students to the plant in Tamara to work on the construction of the new linear dose controller. Professor Guadalupe Nunez also introduced us to Roger Ham, (roger.ham@usa.net) in charge of the laboratory space at the UNAH. They both hope to meet with Monroe in January to strategize how to continue to work with our university.

Tamara

Antonio and John went to the plant on Thursday 12.18. They had run out of aluminum sulfate on Wednesday and had still not bought more. A member of the water board planned to go to Tegucigalpa Thursday to buy more. Water was entering and leaving the plant at about 11 NTU and the chlorine residual was low (0.2 mg/L) in the distribution tanks.

Flow had reduced from La Chorrera once again. They continue to receive a considerable amount of water, but not nearly the full capacity of the conduction line. We think this is due to problems with air in the line. We revised the plans the water board has of the conduction line but found many errors and inconsistencies in the hydraulic calculations. We did conclude that more flow should arrive than is arriving. A walking tour of the line will be necessary to better analyze the situation.

Construction continues to progress on the operator's house. The adobes are made and they are excavating for the foundation went to Tamara to check on the plant. We think the floating floc problem has been resolved temporarily by cleaning the source.