K The OREGON STATESMAN, Salexa, Oregon, Sunday Slanting, JBlay 3, 1830 lislamd Water Beclaired Best Fromr- Many miits On. aintenance Low, Costs Report Claims . - . i High Quality of Water and Adequate Volume Praised Alone With' Its Availability; Plans Told or Salem rriHE "Stayton" Island source of water supply finds favor with Stevens & Koon, consulting ;engirteers for the city, not only because of the high quality of the supply and the adequate volume but also because of its ,arailability. In the formal report released yesterday, a gen eral discussion of the proposed source is given. Prixjcipal por tions of the report follow: o General Statement - This report : will deal mainly with problems of developing an adequate supply of water for the City of Salem from water-bearing sand and gravel which underlie an island in North Santiam river a bore the city of Stay ton It is essential that a water sup ply source be considered-not only on the basis of its merits as a pro ducer of water of -high quality and adequate volume but its avail ability, and the cost of its develop- - meat and maintenance must be given careful thought and apprais al before sound conclusions can be reached.. . ;: , The city council of Salem on . Marclt 2, 19 3 S designated the North; Fork of the Santiam riTer above Stayton as the permanent . source of water supply of the city of Salem" and. in pursuance of : such decree, all water supply stu dies made under our direction siace that date hare -had reference oaly to the North Santiam, riTer source I Drawings Explained 400 acres. The island is low ly Ing and is relatively; level. There are. however, many small depres sions and high water channels which indicate partial flooding during periods of extreme high water . but in the portion of the island with which the city may be concerned, there is no evidence of serious erosion. .-.!.- The surface of the island is gen erally parallel to the j river slope although the easterly! third rises somewhat more steeply and its area is from eight to ten feet above normal river lfvel. The east end of the island is about 30 feet higher than it is along a line which would divide the west erly and middle thirds of the to tal area. j j - It is only the easterly : two thirds of the island that is of any. importance . in connection with the studies that have been made and: the water-bearing character istics of the easterly third ' only are of concern to the ity . . . Location Shown J As a consequence there ate in ' eluded herewith two, drawings, consisting of a map and a profile , showing the relation of the North Santiam river source Xo the city of Salem and the location of fa cilities rhich now exist or are to ' be provided within tim city for the storage and distribution of water. r These 'drawings are marked and will be referred to as Plates A' and B respectively. The map and pro file are largely - self-explanatory and written comments will be brief. Plate A shows the route of the proposed pipe line from the BTOposedMsource above Stay ton to the new city reservoir now under construction. . . . The pipe? line --would function somewhat differently if used to ee avey water developed on the isl isd than it would it water is tak es from the open stream. In the farmer instance the water would b clear and free from any sub stance requiring artificial filtra tion for its removal while in the latter case the water taken by the ipfi, line would be of a character nned "raw" and such water rould subsequently be filtered by passing through a modern rapid und filter. -. . . If water is taken from an un derground development on the isl sad the pipe line will, carry water sit able for use at all times and at any point along the pipe line reute and will deliver water di rectly into the Salem distribution system at the intersection of 12th street and. Rural avenue-Water ot consumed by current atTftJwad. . .will flow westward in a new pipe jine along Rural avenue to the iwj reservoir and any excess of ftovr over city demand and that accessary to maintain a full re-fervoir-will overflow and be car tied, to waste at the level of Wil lamette Tiver. k On the map of the iiland (plate C) the appropriate locations of prospective develomeht works, pipe line and appurtenances are i shown. Plate D fs a Surface pro file of the island along the tenta tive pipe line route. . !. . ' As land for general use, the island1 has no appreciable j value except as a k source ofj cord wood and gravel. . . . Thej cord wood value wiU be acquired by the city if the island is developed as a water supply source whereas the open gravel deposits will be unaffected by any of the city's work or prospective ownership. Surveyst jTo Exceed Ieeds Attention was first' directed to the possibilities of wjater supply development on Stayton island because "of the opposition of Stay ton interests to the suggested di version of water from the open river above the city.' j .-. Because of its elevation, isola tion and reported i j sub-surface characteristics, the island. which lay just across the jnorth river channel from the most feasible point for open river diversion, of fered attractive possibilities. At the time surveys were un- dertaken there were available no data of consequence; pertaining to the island. General j information of value was given by! A. D. Gard ner or stayton. His data were of a descriptive nature and useful only in so far as thy. expressed his personal knowledge of the island. No reliable knap of this area has heretofore been made. Surveys, map-making and sur face study of the island, disclosed the possibility that jhere was a rare opportunity to: secure a wa ter supply of exceptional attrac tiveness I Property Options 'c In this method of development sad operation large volumes of water will flow through the reser- Toir constantly and run. to waste until such time as the city demand li greatly ', Increased over that Which now obtains or until a sale of excess, water can be made. On the other hand, if "raw" water is taken from the open river, the pipe line from source to filter plants will contain water which, at times, will be unfit for use without local .treatment at point of use. . . . : Plate - B drawing differs from Plate A in that it indicates i the Vertical characteristics of the pipe line instead of its horizontal align ment. ... ' Under -conditions which can be obtained 'In. this project (a fall of 1.41 ft. per 1000 ft. for the ls ijjid development and a little less tar the -open river diversion) the delivery of water In various sized pipelines may be consldered to be approximately' as follows: .: ; ; '. ? ' Million i ; -t ."' ; ":r'::r -' gals, per ' . " :".'- . -day SI-tnch .pipe . .' ...... . . . 4 3 -inch pipe ,.. .......t. 1 0 SSrinch pipe ....... . . . i.-llS 45-Inch Tipe , . . ... .... ... ..24 - ; As pearly as can be determined, the present water demand in Sa :Iemt ranges from a minimum of about million gallons - per day ,ln winter-to a maximum of about rns million gallons per 'day for the i hottest," dryest day of sum mf. . , .r ;!-'. :c- Before undertaking work more active and definite than an engi neer's survey, the water commis sion secured options ;-to purchase the lands which might be; useful to .the city and also easements for the construction of pipe lines and structures on properties in the vi cinity of the island I but not in cluded in the lands; to be pur chased. On Plate C the Property under option to the Jcity is indi cated. It consists . of 238 acres and embraces all that part of the island which can in ? any way be useful to the city in its present or future water development proced ures. This area includes practic ally all of the timbered portion of I Island and icinity ; So far as Is known the Island under discussion has na official name. For convenience your engi neers have given to It that name which appears to be most appro priate: Stayton Island. - Tils Island lies mainly In Sec tions ' 18 -and H, Township 9 South, Range 1 West W.:M. Its total length Is slightly . less than ,ty. miles and the width Is from Sub-Surface Formation Engineers? Drawings Showing Proposed Infiltration System and Santiam Pipe Line to Salem (High kvd water jtower . . : " ."' " 'l wkT L t-a X-r i c 33-- : f-ffl 00 Jr i i I 00 6 i i 2 i . A i 6 7, .t. e 9 to n iz i i3 m ft rr is MlLC$ FfOM fltW CiTY RC5SRV0 STEVENS A KOMI FINITE A shows engineers location for Santiam rlver-Salem pipe Unewhich wiU start front Stayton island, go under the north fork of the river, caoss tbe Stayton island, co under the north fork of the river, cross the Stayton power Icanal and Salem ditch on an overhead crossing, run through Stayton an on, 18 miles to Salem. The line will be laid through a small section of the Turner municipal 11m. its, run near to the state training school for gjrls and the Falrvlew home, coming Into Salem at South 12th street and Rural avenue. ) Stay Ton limno DtvtuopftrT PLATE Purchase - of; Necessary Lands Recommended to Salem Council PLATE B illustrates the total fall of 136 feet between the intake level at the San tiara and the surface level of the new reservoir on Fairmoant hill. The top line reveals the hydraulic gradient, showing a fall of 1.41 feet for each lOOO feet of pipe. The bottom line shows the actual drop from the SGO-foot level at the San tiam to the minimum level of 60 feet above sea level where the pipe comes into Salem. The vertical scale in this drawing is at a ratio of 88 to one on the hori zontal scale. j jl ; " ' ' One mfe n Stayton Island - ' " f ( ""Conduit b SaSem nr y rr- -i fZv 2l Nvl7 - " stcvcns ft koon . TYPICAL P0RMATKX1 - j ' rorogc over cana' . XiW II CcH-q-1 i UF pr.rn, tose j i ti ' V-J i PROFILE ON STAYTON ISLAND. I Y--$tphon under river , PLATE D rLATK C is an engineers' drawing of the Stayton island territory indicating tlwi proposed inUke system. The east portion of the island would be acquired by the city with water being taken from the sector shown in the right portion of the upper drawing. The j pipe line lor the intake would be laid with open Joints i? gravel through which the water would filter. The flow would be picked up in steel pipe, conveyed through a sand trap and regulating chamber and then! started on its way to Salem through the pipe line which would go under the Santiam river. t ue poner canai ana we oaiem aiicn ana oe uua through Stayton as Indies ieu aopve. PLATE D is a profile section of the proposed intake system on Stayton island. The vertical scale in the drawing has been enlarged to show how the water would fil ter through clean gravel land sand into the loose-joint infiltration pipe. The flow would be conducted into 'tight pipe, pass through a regulating chamber and sand trap and then be carried to Salem through an 18-mile long pipe line. The vertical scale here has been greatly enlarged in comparison to the horizontal scale to show a cross-section of the proposed infiltration system. ' imately 500 gallons per minute or about 700,000 gallons jper day. This volume is about one-twentieth of the capacity of the pipe line which is now tentatively ; consid ered for use in bringing! water to baiem. The pump was! operated continuously for a full eight-hour period without appreciable effect on the water level in the pit. Upon stopping pump operation the pit quickly filled with perfectly clear, iree-nowlng water. After ; remov ing top soil and entering grav el, only loose, clean sand and gra vel were found in the excava tions . . . . . Advantages Shown immeamieiy zoiiowing tne se curing of property opjtions and the permissions for further investlra tlons contained therein, your en gineers secured readily portable equipment . . . and made such sub surface explorations on the island as could be made without the aid of heavy, power-driven excavating macninerr and extensive : opera- lions which would; be equivalent to a construction undertaking . ;.- Three ' important! excavations were made within ike "area of water development? indicated on Plate C. As war to! be expected, water-was found at; an elevation which was approximately the same as in the river channels op posite the place excavation. Water' appeared ia jctarse clean graveL In low spots gravel was found at the beginning of excava tion and, where surface elevations ere higher,' an overburden of sandy son varylnr in. depth no to four or five feet was removed be fore the -water-bearing gravel was reached. When an excavation had been carried to a depth of in foot or two below water level a power driven pump was used to lower the water and permit farther ex cavation. " j j . By using the pump to fall ca paclty.lt was possible, to dig to a depth of about five feet below wa ter level In Hole cribbed to Development, of a water supply from such a source as itj available on Stayton island is not; In itself unusual but there are a number of features in this particular devel opment, which make, isj specially attractive; Among - waterworks men a shallow, underground water supply developed in thi manner herein suggested is not uncommon and the method is known as infil tration galleries or, more simply descriptive, - such ' a development may be called a horizontal well. More frequently than otherwise. supplies developed in this manner require pumping in order to make the water available fori city ser vice. If the Stayton Island devel opment 1$ made. It wilt be oper ated entirely by gravity and in this lies its most valuable feature aside from the ! fact that the! quantity will be anjple ana the quality most There will be practically unlim ited opportunity for expansion of the development at any time more I r I Oortgage Loans . on Modern Homes Lowest Rates, ' Hawkins ;& Roberts ' j , M : ' water is desired Other unusually attractive features of this particu lar project may be mentioned. These vast water-bearing gravel deposits occur Immediately above the last point of possibly serious contamination along the river; the water which can be secured from this source will have all the char acteristics of. an ideal mountain supply with none of the disadvant ages which necessarily obtain when such a supply is taken from a stream as large as North San tiam river; the entire area over lying the development can be own ed and forever controlled by the city with very nominal expendi ture for land; the area under op tion is relatively inaccessible to man except with considerable ef fort and livestock, which might occasionally ford the stream vol untarily, can be excluded by xencing at moderate cost; no arti ficial filtration of the supply will be necessary and this construction and operating cost will be obviat ed; chlorination of the i supply might be unnecessary although. as a precaution, adequate provi sion will be made, so that such treatment could' be Instantly ap plied should there be any indlca tion of pollution, however slight. Development Method i opment cannot be given pending further surveys and more thor ough, study of the problem. In general, however, a tight Jointed pipe line will penetrate the isl and from the point of entrance Indicated on Plate D to the "De velopment Area." At the lower edge; of this area the pipe will be alt a depth of probably eight feet or more below river level. Through the development : area pipe with .open joints' or perfor ations will be laid as collectors;' such pipes being entirely sur rounded with clean gravel' of suitable she when the pipes are laldi plate D Indicates in a graphic manner a tentative scheme of development but this may be greatly altered as the ac tual conditions become clearly understood. more Relative Cost Preliminary data! only have thus far been obtained relative to this phase of the prospective wa ter supply improvements and, be cause of tip peculiar nature of the construction problems involved, it is too soon to make reliable es timates of cost. It will be unnec essary to! build certain costly works if the underground devel opment hree discussed is made and a consideration of these prsopectijre savings may give some idea as to the merit of the island project from the stand point of construction cost. A supply taken from the open river would require a filtration plant which has been estimated to cost about 1170,000 and an intake structure to cost 12.000. Keith er of these items would be neces sary with the underground sup ply- ' . There would also be a consid erable saving in pipe line cost at the Salem end. In round fig ures the special works: made unnecessary by the island supply (Turn to page 5, col. z) ' UAceuuuiiui Supply Found f. v (Continued from page 1) and designs to the end that, un- esa unforeseen i difficulties arm - as a 'result of such final lnvesti- rations. the underground watei of Stayton Island be developed ai the permanent supply for the Citj of Salem " k ! Th rpnnrt noints out I that at tention was. first directed to the; possibilities: of water. supply on the Stayton island location because or opposition by Stayton, interests to suggested diversion of water from the open rifer above tne euy. "Because of its elevation, isola tion and reported surface charas teriatics, the island offered at tractive possibilities," the report reads.: . :;. s . t "Surveys, map-making 'and sur face study of the island disclosed the - possibility that here was a rare opportunity: to secure a wa ter supply of exceptional attract iveness" the report continues. Options were : then : taking on 23 S acres oh the island needed as an intake source. Easements were secured forfrlght-of-way for pipe line leading! a,way from the island. The studies quickly i revealed that water was obtainable in large quantities at approximately the el evation of tie adjiolning river. "Wa ter appeared in coarse gravel.' "A sample " test pit dug: and; encased in cribbing !to form an area four by eight feet, revealed 8 flow; of 500 gallons fof water a minute, or 700.000 gallons a day with the supply undiminished by j continu ous pumping. ' - ' I While details of the methods of developing the water supply from the island cannot be given until a more extended study is made, the engineers" report sketches the plan for taking Water- from the island. In the so-called development area of the island pipes with open oins or perforations will be laid as collectors-, the pipes being en tirely surrounded with clean gra vel. ! ; . ; I -- ;!-., ,; Savings In capital outlay in the proposed island system would be at least ?5. 000, the report de clares, with the view expressed by the engineers that the savings would probably be larger. At this stage of study and plans It is felt that a very liberal allowance should be made for the island work and the relative merits of the two supplies should be consid ered on the basis of the quality of water ana operating cosi ramer than upon development e;ost," the report declares, j , T- --, A Salem jf titration plant, esti mated to coft $17,000, and an in take structure on the open river - estimated to cost $25,000, would be eliminated under the island in take proposal. Offsetting portion of this cost .would be three-quarters mile more pipe, a river cross ing, a special regulating! chamber and perhaps 2000 feet of collect ing pipe, j i In addition, to the savings in capital outlay, a large saving in operating and maintenance cost would be made by the Island sys tem inasmuch as the jf titration plant would be eliminated. W. M. OVERGARD : Republican Candidate , j fof r :; X - .- CONSTABLE Salem District; ' i Tears Business iExper- I Home Owner and Taxpayer. " : . 7 lence Details of the method of devel- GEO. R. DUNCAN Republican Candidate FOR REPRESENTATIVE , Ten 1 years active law practice. Twelve years active experience in municipal and" : county affairs. : - '- :- . - :- ' For orderly development of Marion Coun ty and Oregon. For less and better legis lation. Opposed to legislation wasting tax . money. .' ' ' -1 " Greeting. A huge assortment of Cards to ex press just the sentiment you wish. We Suggests as Gifts Books, Fountain Pens,: Stationery, Mot toes, Desk Seta, Bibles, Photo Albums. COMMERCIAL BOOK STORE f ,1 - r- Just to Remind You of 18 years of conscientious, devoted and friendly service as your . ; COUNTY CLERIC f How Candidate for Re-election - . GRANT BOYER 7 (U. G. Boyer) - If 1 I I (Paid Adv.)- Boyer-for-Clerk Committee Irimarles . . - " i - May 16, 19SO 1 ON UNION SOU Ail lOOMslwiTH Al'M' J i. All lOOMj j WITH IATH , , At . $3130 tingle U $ j double s 1 WORLD-FAMOUS DINING ROOMS llCIMIONAt (UlilN E t OINNIR e I Ml D A N C.I N G ' aifkUf MUM I R O O M UNOWNED 0CME5TAJ -i A M A Of M N t JAMES M. McCASI IY.CI : i. -t ' -f i r i otfeD tfoDte: MM J an eirhth to three-eighths of a size about four by eight feet The 163 N. COMMERCIAL ST. A. A. GUEFFRO Y ! - i nils . ... The total are to about capacity of the pump was approx . ! J: