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EXAMPLE 9.1 Water Treatment Facility #3 Case The situation with the location and construction of the new WTF3 and associated transmission mains described in the chapter's introduction has reached a serious level because of recent questions posed by some city council members and citizen groups. Before going public to the city council with the analysis performed last year, the director of Allen Water Utilities has asked an engineering management consultant to review it and determine if it was an acceptable analysis and correct economic decision, then and now. The lead consultant, Joel Whiterson, took engineering economy as a part of his B.S. education and has previously worked on economic studies in the government sector, but never as the lead person. Within the first hour of checking background notes, Joel found several initial estimates (shown below) from last year for expected consequences if WTF3 were built. He realized that no viewpoint of the study was defined, and, in fact, the estimates were never classified as costs, benefits, or disbenefits. He did determine that disbenefits were considered at some point in the analysis, though the estimates for them are very sketchy. Joel defined two viewpoints: a citizen of Allen and the Allen Water Utilities budget. He wants to identify each of the estimates as a cost, benefit, or disbenefit from each viewpoint. Please help with this classification. Economic Dimension 1. Cost of water: 10% annual increase to Allen households 2. Bonds: Annual debt service at 3% per year on $540 million 3. Use of land: Payment to Parks and Recreation for shaft sites and construction areas 4. Property values: Loss in value, sales price, and property taxes 5. Water sales: Increases in sales to surrounding communities 6. M&O: Annual maintenance and operations costs 7. Peak load purchases: Savings in purchases of treated water from secondary sources Monetary Estimate Average of $29.7 million (years 1-5, steady thereafter) $16.2 million (years 1-19); $516.2 million (year 20) $300,000 (years 1-4) $4 million (years 1-5) $5 million (year 4) plus 5% per year (years 5-20) $300,000 plus 4% per year increase (years 1-20) $500,000 (years 5-20)

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: a fibreglass chimney; a rock front door; of? on stilts? se. Give reasons. Scramped esn't cost very Idn't you like attractive to me. st get very cold. do you read it? al idea of t of the question ose the rmation How the are not ct How would you like to live in a castle, a tree house or even underground? This might not be as unusual as you think. It seems that these days more and more people want to live somewhere special and out of the ordinary, and if they can't buy what they want they are quite 5 prepared to build it from scratch. If an underground home doesn't appeal to you, how about living in the tree tops? Dan Garner, a tree surgeon from Gloucestershire, certainly thinks that this is the way to go up in the world. 35 For John Mew and his wife Josephine their home really is their castle. They have built their own English castle in the Sussex countryside. The building is brand new with all the luxuries you would expect from a house that cost 1 more than £350,000 to build. However, when you first see it from the outside it would be easy to think that you are looking at an ancient monument. The building has a lot of the features of a traditional castle, including a keep, a moat and a drawbridge. "My choice of house is 1 somewhat eccentric and building it was very hard work, but we've got the perfect place to live," Mew says. Although some would say that the building is impractical and may be cold in harsh British winters, he certainly has got a unique and spacious home. "When our family became short of space at home our solution was to build a luxury tree house in the garden. The tree house is built into a spruce tree six metres above the ground. It has one main room, a bedroom and a balcony running around two sides." Garner is so happy 40 with this practical extension to his home that he thinks he can convince more people of the benefits of living in the trees. He wants to set up his own enterprise making more of the deluxe tree dwellings, saying, "Tree houses are airy, secure and comfortable and the only disadvantage 45 is that they might not be suitable for people who suffer from hay fever or a fear of heights!" 2 If you don't look carefully, you might not even see the home that Jonathan Ridley-Jones and Shanon Ridd built at all! That's because the house is a converted underground water tank. The only thing that can be seen from the surface is a door leading into the hillside. "We've 2 never wanted to live in an ordinary house," Shanon says. "Living below ground means that our home is quiet and very cosy none of the usual draughts. It doesn't damage the local surroundings and has very low fuel bills. Some of our friends find it dark and feel shut in 3 when they first visit, but they soon get used to it!" Even people who live in more ordinary settings sometimes can't resist doing something to make them stand out from the crowd. One extreme example of this 50 is Bill Heines' house in Headington, Oxfordshire. Until one morning in 1986, his house looked much like all the others in his street, when suddenly overnight a 7.5 m long fibreglass shark appeared to have crashed through the roof. The shark was a sculpture by local artist John 55 Buckley. At first some people complained that it might be dangerous or that it spoilt the look of the neighbourhood, but engineers checked that the sculpture was safe and the 'Headington shark' has become a well-known and popular landmark. It seems that no matter where you live, 60 you can always do something to make sure your house says something about who you are. 4 5 D It Why Ridle AI B 6 C D 7 Wh Ric A B 4 C D V

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Aim Listen to college interviows Listening ocabulary Listen and nนmber. Capable behalf GSsociation aWard weakness strength Competitive institution Fill in the blanks with the best vocabulary words. Change the form if necessary. 1. My greatest is that never get stressed about work. 2. This has been around for 200 years. Its the oldest นniversity in this city. of working for this company 3. I studied computer science in university, so | am very 4. On of the whole team, I would like to thank you for your hard work. 5. The student is looking for new members. 6. Tom got a(n) for winning the writing contest. S! 7. This program is very Only one in 100 applicants is accepted. 8. Ricardos is that he worries too much about little things. thentic Conversation Talk with a partner. Thanks for coming in, Billy. Please tell me a little about yourself. Well, was born in Chicago but grew up in New York City, where attended George Washingtoก High School. I'm really interested in computer programming, and I want to be a game developer. So, why are yoน interested in attending this university? Wel, know you have one of the best engineering programร in the country. Also, I heard the Social life here is amazing Yes, think we have both of those things. So, why do you want to major in engineering? Prof. ๒ All the best game developers have a background in engineering, so its the best place to Start if want to achieve my dreams. OK, 9reat. So, what are your strengths and weaknesses? My strengths are that I'm hard-working, honest, and punctual. And my weaknesses. let me think. iscuss with a partner. Have you atternded any interviews? What was your experience like? How should you prepare for an interview?

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