The Coconino sun., 1917-02-16
OFFICE OF TOWN ENGINEER

Flagstaff, Ariz. Feb. 15, 1917 To the Mayor and Common Council of the town of Flagstaff:
 | Gentlemen:
 l beg to submit herewith my report covering the proposition of purchas- ing the present sewer system, ex- tending the same, and operating it un- der municipal ownership. When $60,00O.00 was decided upon as the amount necessary to make this investment, I estimated the cost of the present system roughly at $20,- 000O0, alterations and extensions to the same at $10,O00.0O, and an addi- tional system to serve the West and South parts of the Town at $30,000. Since then the present system has been appraised at $19,730.OO, leaving $1O,270.O0 to be applied upon the al- terations and extensions of the same; of course, when detailed plans and estimates covering this work are pre- pared, it may be found advisable to transfer some of this money from the extension fund to the new system fund, or visa-versa, although in reali- ty the whole will be only one complete system.
 Taking these three accounts in their regular order, the appraisal of the present system at nineteen thousand seven hundred and thirty dollars was based upon the original cost of its construction, the increased cost of material at the present time tending to offset the amount of depreciation figured on the brick manholes; all of the present system will be utilized in the proposed encouragement, only one block of four inch line having to be increased to six inch, and this charge was considered in the appraisal.
 Next, the alterations and exten- sions of the present system; this in- cludes as alterations, the conecting of the lines crossing the River de Flag to the new main sewer in the river, and the changing on block of four inch line to six inch line, and as ex- tensions, the extending of the present lines North of the railroad and East of Humphreys Street, so that they will serve all buildings in that part of town, and making the necessary water taps for flushing.
 The new system will consist of a main trunk sewer running down the River de Flag, ad intended to serve that part of the Town north of the railroad, not reached by the exten- sions of the present system, laterals being built from the main sewer along the different streets and alleys to al- low of all buildings being properly connected to the same; South of the track, the main line will leave the riverbed and run South on Beaver Street with laterals built out to ac- comodate the different blocks and the Normal School; this main will turn East at Ellery Street, and return North on Agasiz Street, and follow the present outfall East along the South side of the railroad, the neces- sary laterals being built to serve the Brannen Addition, so there is no req son why every house in town cannot have a sewer connection.
 To give information covering the future of the proposed system as a business proposition, have made up the attached table giving the estim- ated revenue and expense for the diff ferent years; in making this estimate have been extra conservative, and if anyone does not fully understand each item, will be glad to explain the same to them.
 In the Collection Column I have estimated that less than one-sixth of the collections from the new connec- tions will be received this year, and in 1918 I have assumed only the revenue from the buildings now built, and not all of them, as we now have about $50 water connections, and the sewer connections estimated with the original reconstruction are 520; be- ginning with the year 1919, I have added an annual increase of four per cent to the yearly collections. (The average annual increase in the past, as shown by the books of the present | Sewer Company, was ten per cent.)
 In the Interest Column, have credited $225.o0 this year, as interest | received on $3O,OOO.OO at 3q6 for three months, as it will be several months before this money would have to be paid to the contractor; beginning with 1920, we begin to receive interest at five per cent on the sinking fund, and this is figured only on the amount on deposit the year previous; after pay