The following paragraph is picked out from letter of acknowledgement:
Beijing is a city, which is severe lack of water. Jingmi Channel is the main supply of water to our city, so the protection water is emphasis of our administration. However, swimming, washing clothes and other pollution phenomenon always occur in Jingmi Channel. Due to lack of staff in our department, we need help from society. Students and teachers in Beishicao Middle School offer great help to our work. They contribute a lot in protecting water resource. Therefore, we express our sincere acknowledgement to your school.

- From Jingmi Channel Administration