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HomeMy WebLinkAboutWTR2700422(4) W-422 SPRINGBROOK SPRINGS UPGRADING PROJECT WTR-9 1+ #5 Feasitility Study (Additional Water Development) BEGINNING OF FILE FILE � �al�Qrm�cta� AE Fo a7, roG6 POOK 4Q t%V&S f� ddffl'eNaC O&feQ 4&o CAM � =HILL entinmerti Planner e(onornot, x iuntist, 6 Jun: 1975 S004.71 City of Renton Renton Municipal Building 200 Mill Street Renton, Washington 98055 Attention: Dick Houghton Department of rublic Works Gentlemen: Subject% Springbrook Water Source During a 3 June 1975 meeting in Mr. Houghton's office, he requested a fee estimate for the superficial geohydrologic investigation proposed in our 14 May 1975 letter. We propose that we do the work on a time plus expenses basis. Our charges would be based on time spent at the project at oc - normal rates. These rates are listed in our 1 May 1975 letter to Mr. Warren C. Gonnason (Engineering Services for Miscellaneous Consulting) . Most of the proposed work would be performed by an EN3 project manager at $200 per day. Other costs such as mileage at $0.15 per mile would be charged directly. We estimate the total fee to be $1,800 to $2,000. If you are in agreement with this pr,)posal, we would appreciate a letter of authorization for billing reference. Sincerely, v-U1 4 a)�a 0. Collins Martin kf [EE ElYEP JUN G i975 VA J-215 • `�� September 4, 1975 y & GEOTECHNICAL ENGINEEPoNG City of Renton Public Works Department ' Municipal Building 200 Mill Avenue South Renton, Washington 98055 Attn: Richard C. Houghton Re: Feasib' .ty Study t Additi - al Water Development at Springbrook Springs Renton, Washington Gentlemen: We are pleased to submit herewith ten copies of our report "Feasibility Study, Additional Water Development at Sprin>Z- brook Springs, Renton. WashinFt.on." This report presents the results of our fiel,l exploratlons and engineering studies pertaining to the feasibility of developing more water production at Springbrook Springs. We appreciate this opportunity to provide you with this ser- vice and would like to th.nnk the City of Renton work crews ' for helping during the field ex loratlon phase of this study. If any questions arise in reviewing this report we would be pleased to discuas them at your convenience. Sincerely. HART-CROWSER d ASSOCIATES, INC. 7 !^ t C V Cr C 4 K. V.ZeCfTRC, I Hvdrogeologist ' RVL:vp t TM NE NORTH LAME WAY.SEATTLE,WASH.0..05,a0616112573 ' WASHINGTON PLAZA.SUITE 1414 TACOMA.WASH E6102,1206)5TP 5156 TOLL FREE-Q0616060024 FEASIBILITY STUDY ADDITIONAL WATER DEVELOPMENT AT SPRINGBROOK SPRINGS RMON, WASHINGTON 1 1 1 SEPTEMBER 1 1 t ' J-215 HART-CROWSFR & ASSOCIATES, INC, 705 HE NORTHLAKE WAY ' SEATTLE, WASHINGTON CONTENTS 1 INTRGDUCTION STUDY AREA = Site Description 2 Geology ' Subsurface Conditionst Upper Dan Collection Gallery Groundwater i RECOMMENDATIONS Feasibility of Additional Spring Development ' 8 Leakage at the Upper Darn 10 Repair or Reconstruction of k'.xisting Dam 11 Immediate Work to be Accomplished at Springbrook ' 12 Continent 12 Utility of lower Dam t14 REPERENCr:S LIST OF FIGURES Figure I Geologic Map Figure 2 Site and E :�ioretlon Plan Figure 3 Geologic Cross-Stttion A A' Figur, 4 Geologic Cross-Section C B' , B B' and A'B' Figure 5 Regional Groundwater Figure b Flow Net ; rxisting Dam Figure Flow Nett ExisLing Dam with Leakage Figure 8 Flow Net: Prop, sed Cutoff Wail APPENDIX A ' Figures A-1 through A-7 Logs of Borings F'igurts A-8 through A-II Logs of Test Pits Figures A-L2 through A-15 Grain Size Classification APPENDIX B - FIELD PROCEDURES ' J-215 FEASIBILITY STUDY t ADDITIONAL WATER DEVELOPMENT AT SPRINGBROOK SPRINGS RENTON, WASHINGTON ' INTRODUCTION 1 This report presents the results of oar surficial geologic reconnaissance and subsurface explorations at Springbrook ' Springs Municipal Water Supply, Renton, Washington. The purpose of this investigation was to determine: ' 1. The local geology and geologic structure of this area as related to the groundwater flow system and the occurrence of springs, 2. The feasibility of developing additional springs In the area, 3. The extent of leakage around or through the upper 1 dam and provide recommendations on the repair or reconstruction of this dam to reduce the leakage. ' 4. The utility of the lower dam as related to further spring development and/or flood control. This scope of work was accomplished by a field exploration ' program consisting of an initial site reconnaissance, geologic mapPldg, excavations of four test pits at the front of the upper dam, and drilling of six borings from 12.5 feet to 44.0 feet in and around the upper dam and collection gallery, and flow measurements from mapped springs. RecMmendatlons for the repair or possible reconstruct:on of ' the upper dam are based on engineering studies consisting, of flow net analyses to estimate leakage under ind through the dam and an estimate of costs for alternate mn?thods of p'assLble repair. ' 2 • • Additional spring development was studied by locating and mapping the sources of sprin,;s in the area anc' estimating the flows. In addition consideration was give, to the pos- sibility of using the lower dam for additional spring development or for flood control. ' STUDY AREA Site Description t Springbrook Springs, located about four miles from the City ' of Renton, is in a heavily vegetated canyon trending south- east opening into the Duwamish Valley. The watershed area is dissected by two perennial streams that derive water from springs at elevations between 190 feet and 240 feet above sea level. Active since 1909. only the spring waters at approxi- mate elevation '96 are collected behind a wooden and concret.- dam and flow by gravity to Talbot Reservoir. The water is tclear. cold and of good quality and represents a low cost, low maintenance water supply for the City of Renton. Geology tThe soil types present at the study area were laid down during the last glaciation. The final advance of the Puget Lobe of tthe continental glacier occurred about 14,000 years ago in the Renton area. As the glacier approached the area, a broad meltwater outwash plain was covered with gravels, sands and silts. This material is referred to collectively as Advance Gravels. The glacier then over-rode these materials and deposited a dense compacted layer of till. The retreat of ' the glacier was marked by the deposition of more water-laid outwash deposits called Recessional Gravels, This cyclical process has formed a succession of complex glacial deposits as encountered in wells near the study area. ' The deposits present at the study area have been interpreted as Recessional Gravels (Luzier, 1969) although they may include ' some Advance Gravels. The difficulty in distinguishing between these units is great if their relationship to the till cannot ' be established. No such relationship was found even though the till is present, underlying the upland immediately adja- cent to the study area. ' The Geologic Map presented in Figure 1 is based on photo ' interpretation and field mapping accomplished durlir late July. The inferred contact between the till and gravels was mapped south of the area on the basis of air photos, but whether the gravels are stratigraphically above or below the till is not apparent. The Recessional Gravels mapped appear to underlie the entire Springbrook Springs area. Although they are referred to as gravels, they also tinclude sand, silts and clays deposited in lower energy conditions. The gravels are generally poorly sorted with some well sorted beds. The sands occur as interbeds in the gravel and often become the dominant type as seen in the old borrow area north of the spring site. The silts and clays occur as common thin interbeds within the sand ' and gravels. A single 10 to 12 foot clayey silt bed like that seen immediately above the upper collection gallery has been mapped at several locations in the area (see ' Geologic Map, Figure 1). These fine-grained beds range from a rusty clayey silt to a gray, silty clay. Materials ' similar to those surface exposures at the springs were encountered In the borings, with sandy gravel and sand ' predominating. The attitude of the beds ranges from horizontal to a 12" dip, striking from northeast to northwe.+t. These non-horizontal attitudes are interpreted as foresee bedding in a deltaic tstructure and are local only, 4 ` • Glacial till has been mapped mantling much of the upland east of the Springbrook Springs area (1.uzier, 1969). ' Characteristically it is a cimbination of densely compacted silt, sand and gravel which possesses low permeability. In ' the study area weathered glacial till probably occurs south of the springs as indicated on the Geologic Map, Figure 1 . ' Subsurface Conditions: Upper Dam Collection Gallery In the immediate area of the upper dam and collection gallery four test pits and six borings, located in the tSit,. and Exploration Plan, Figure 2 were accompl+shed to disclose subsurface conditions. All field operations were monitored by a geologist from our firm. During the excava- tion of the test pits and drilling of the borings he ' obtained samples and prepared descriptive field logs. The samples were returned to our laboratory for further classification. Each boring log and test pit log is graphically presented in Appendix A, Figures A-2 through A-7 and Figures A-S through A-11, respectively. In addition. ' grain size analyses on representative samples taken during drilling are, presented in Figures A-12 through A•15. A brief explanation of these field operations and procedures is Included in App:udi.x B. tTest Pits TP-2. TP-3 and TP-4 along the front of the dam encountered 4 feet to 5 feet of slightly silty, gravelly. ' fine sand with pockets of sandy gravel to a bottom depth of 8 feet to to feet. Test pit TP-1 disclosed about v feet of sandy gravel underlain by slightly clayey silt with gravel to a depth of 11 feet. This lower unit did not ' appear continuous in the bottom of the test pit. Observation wells were installed in all the test pits to monitor grotnd- ' water levels. Tht borings along the front of the upper dam all disclosed ' similar sequences of material as shown in toe. Geologic Cross- Scation A A' , Figure 3. Generally borings B-1, B-2, B-4, I 5 • • B-5 and B-6 encountered between 8 feet to 13 feet of slightly silty sandy gravel and/or undifferentiated organic silts and ' sands underlain by 15 feet to 20 feet of saturated sandy gravel to gravelly sand to a depth of about 28 feet. The saturated sandy gravel is underlain by saturated silty fiae sand which was drilled to a maximum depth of 49 feet in boring ' B-6. Boring B-3 drilled in the collection gallery, encountered about 5 feet of silt and clay slide debris covering t foot of pea gravel previously placed by the City of Renton crews. Under the pea gravel about 20 feet of saturated sandy gravel to gravelly sand was disclosed underlain at 32 feet by sat- turated silty fine sand. Boring B- 3 was sealed with concrete to prevent leakage out of the collection gallery Observation ' wells were installed to the bottom of borings B-5 and B-6 to monitor groundwater levels. Geologic Ctnss-Sections C B' , ' B B' and A B' , Figure 4, present subsurface conditions across The collection gallery dam, as disclosed by the borings. Fhese cross sections are used later in the report to evaluate ' the groundwater flow system in thv Immediate area of the collection gallery. ' Groundwater was encountered in all the zest pits from 5 feet to 7 feet below the ground surfar . in borings B-5 at 7 feet, and in B-6 at approximately It feet below the ground surface. Groundwater ' A regional grcundwater study was completed by J. E. furier in 1969 which described the geology And groundwater resources of Southwestern King County. In his report he discussed groundwater movement throughout Southwestern King County and briefly described recharge sources of the area. t 6 • 0 1 From Figure 5 presented by Lazier (1969) groundwater levels are used to interpret groundwater movement. In the area of Springbrook Springs groundwater flows down gradient from the east near Youngs Lake towards the Duwamish Valley. Where ' the piezometric surface is projected higher than the surrounding land surface groundwater could appear as springs or seepage where permeable material outcrops along the valley walls. Such is the case at Springorook Springs. The natural groundwater gradient into the valley is intercepted by the ' small eroded canyon at Springbrook causing the occurrence of springs in this area. Recharge to the groundwater is from Incident rainfall and ' snowfall on the upland plain east and southeast of Springbrook. Groundwater response to recharge by incident precipitation usually corresponds to seasonal precipitation fluctuations. However, the flows at Springbrook Springs are signiflcanlly higher daring the summer months but probably . fleet the ' tag associated with recharge restricted by relatively imper- meable deposits thot overlie the permeable Recessional Gravels at rpringbrook Springs,. ' AC Springbrook the springs that emerge from the sides of the main canyon and the canyon immediately to the north occur at ' elevations between 190 feet .And 215 feet except for the springs southeast of tht collection gallery where they appear at an elevation of about 235 feet (Figure 1) . in all cases observed, the location of a spring is determined locally by the occurrence of silt and/or clay beds with the water emerging through an interval of sands and gravels immediately above the silt or clay. Those springs napped below the lower ' dam appear to flow from the contact between the Recessional Gravels and an underlying dense. silt), fine sand. This silty ' flne sand unit may be continuous with the silty fine sand unit encountered in the borings. 1 7 These partially impermeable beds of clay, silt and silty fine sand within the sands and gravels restrict the vertical move- ment of groundwater. The clayey silt bed visible in the bank above the reservoir is just one of these as is the clay layer mapped in the northern canyon. By restricting the vertical flow of groundwater these beds protect underlying aquifers from potentially contaminated surface water. ' Cross-secttons CB', BB' and A'B' . Figure 4 help to illustrate the groundwater flow system at the upper collection gallery. Apparently the groundwater surface, breeched by the ' local topography at Springbrook, developed springs in this particular area. (Note that groundwater is evid( nc ' below the gallery to a depth of at least 49 feet.) The Initial wooden dam and subsequent concrete additions to the dam served to back up groundwater seepage (springs) In a reservoir to flow by gravity through pipes to the Talbot Reservoir. 1 RECOWIENDAPIONS ' Feasibilit of Addltionnl Spring Development Because of the abundance of groundwater seepages in the can- yon north of Springbrook an,! at Springbrook (see Geologic Map), the feasibility of developing additional water supplies from this area was studied. Our primary concern involved determining the total quantity of water which putentially could be developed. From field measurements taken at each ' spring or at the confluence of seepages from two or more springs a total quantity of spring water was estimated. For the canyon below Springbrook four separate spring measure- ments were made totaling approximately 125.000 gallons per t day (gpd) or about 90 gallons per minute lglx»). Considering this small quantity of water, the potential costs of constructing more collection galleries plus costs associated with pumping g . • ' this water because these lower seepages do not have the elevation addi-advantage realized at the upper dam, we do not recommend tional spring development below Springbrook Springs. ' In the canyon north of Springbrook a total of approximately 250,000 gpd (160 gpm) was measured. However, these springs appeared to be issuing from above a clayey silt layer ' (similar to that observed above the upper dam) and there- fore represent near-surface unconfined groundwater. Potentially ' this water could be contaminated by surface runoff and/or septic system effluent from residences near to the Springbrook t watershed. Considerations for development of these springs should include treatment facilities to maintain drinking ' water standards. This fact alone could make spring develop- ment in the north canyon unfeasible. ' Leakage at the Upper Dam ' Before investigating the methods for repair or reconstruction work at the upper dam flow-net analyses were performed to ' estimate water quantities leaking past the structure. These values could be used to compare particular repair or ' reconstruction methods and associated costs against the potential increase in flows due to this work. A flow-net represents the flow of water through an incompressible soil and conforms to C -cy's Law. The water flows through th- soil from an area of higher total energy or head of ' water to an area of lower total energy or head of water along flow lines. The flow lines represent the route of seepage, ' in our case under the dam. In Figure 6.7S is a flow line, 0 is an equipotential or equal energy line. Along M the ' waLer his the same potential or energy. To compute the seepage under the dam this equation can be used. n Q - khnd 9 • . ' Q - flow (Length 2/Time); k - permeability of soil (Length/Time); 1 h - hydraulic head (Length); of - flow tubes; nd - head or equipotential drops. tFigures 6, 7 and 8 show three different flow-net configura- tions that could exist at the upper dam. Figur3 6 represents ' the existing upper dam with an assumed depth of about 13 feet. Using the equation described above the computed seepage value under the dam as illustrated is approximately t 485,000 gpd or 338 gpm. tFigure 7 is our representation of the flow under the upper dam if extensive leakage was occurring between the wooden dam and the concrete extensions to the dam. if the front 100 feet if dam was leak;ng, approximately 162,000 gpd or 1 1139pm are escaping through the existing structure. Note that some of this leakage probably is intercepted by a small auxiliary dam just northwest of the upper dam. Currently ' the auxiliary dam contributes water to the main supply by an 8 inch steel pipe. There is also an overflow pipe from ' the dam which flows at an undetermined rate. We recommend that the flows from this smaller dam be measured and examined in light of our seepage values to refine the following pro- jected quantity increases. The measured quantities from the smaller dam necessarily were incorporated into our projected values and therefore probably would decrease these values. ' Figure 8 represents the flow under a dam which is about 15 ' feet deeper than the existing structure. The calculated value for flow under this is about 162,000 gpd or 113 &pal. All of t;,e calculated quantities presented above assume an average permeability for the sandy gravel of 0.2 foot per t minute which we feel is representative of the material. These flow quantities were used to study the feasibility of repair or reconstruction of the existing upper dam. ' Repair or Reconstruction of Existing Dam ' Briefly, by repairing the existing dam, i.e. stopping any leakage along a 100 foot sectioi of the dam between the ' wooden and concrete extension a.a approximate increase of 162 ,000 gpd or 113 gpm could be realized from the springs. ' By constructing a cutoff wall to a depth of about 15 feet below the existing dam a total approximate increase of 465,000 gpd or 338 gpm could be realized from the springs. ' However, if such construction was completed it would be appropriate to extend the cutoff wall to the less perme- able very dense, silty fine sand, and as such the above quantity of increase is considered conservative. 1 The costs associated with repairing or reconstructing the ' upper dam vary with the methods used. For both repair and reconstruction a cutoff wall cc silting of augereast piles appears to be the most effective and economical method to accomplish each purpose. However, other methods such as slurry trenches have been used for constructing concrete ' cutoff walls and could be considered for this project. ' The cost of constructing a cutoff wall of auger-cast piles Is dependent on (1) the depth of pile, and (2) the relative ' density of the materials to be drilled for the pile. Because the operation is complex involving heavy equipment much of the cost is in the mobilization and set up of the machinery. This fact would increase the unit cist of repair work in relation to construction of a total cutoff wall. Based ton conversations with various contractors we estimate that for a short wall of auge. at piles (15-feet from existing ' grade) for repair work, the total cost could range from about $11000 to $18,000, For a deep cutoff wall of auger- cast piles extending to the less permeable silty fine sand, the cost is exi:,�cted to range from $24,000 to $30,000. t ' 11 . • An alternative to augercast piles could be a slurry trench, enabling a concrete cutoff wall to be poured abutting and below the level of the existing dam, or a chemical or cement grout current wall . A slurry trench operation also is complex and mobilization of equipment for a project of this size would not appear to be warranted. A grout cur- rent may be economically feasible out a cost estimate has not been attained due to possible requirements of secondary and even tertiary grouting to provide an ef 'cctive cutoff ' wall. Coats for repair or reconstruction must be viewed U relation to potential benefits of increased water quantities ' from Springbrook Springs. For the repair work. I .e. a short augercast cutoff wall a possible gain of I62,000 gpd ' could be realized at a cost of approximately 511,000 to $18,000. For reconstruction work involein, n . xtLu> i\t cutoff wall of augercast piles a possible iner(ast „t ' 485,000 gpd could be realized at a cost of apprexinmt, ly 5249000 to $3c,0(m. Note that the water quantities are ' subject to reevaluatl„n as described above- based on measure- ments from the auxiliary dam northwcet of the upper collrc - Lion dam. Although the Initial cash outlay for the construc,.ion ' described above appears large the fact that Springbrook Is a natural gravity flow system requiring little nwintenance tenhances its existence as a municiplc water apply source. tImmediate Work to be Accomplished at Springbrook We reconmiend that the 4 feet to b feet of silt and clav slidt debris be excavated from the cnllection gallery and be rcplo ,d with 4 feet to 5 feet of on-site s.ndy Gravels. This would ' provide a larger volume In the ccl'ectinn gallery for water ' 12 . • s'oragv. The sandy gravel layer should be covered with a relatively impervious soil blanket and planted or covered with an impermeable liner thus eliminating potentially contaminated surface runoff from entering the gallery. ' Comment During our field explorations at the upper dam we determined that leakage war occurring between TP-i and TP-2 along the ' front of the dam. Whether the leakage was due to deteriora- tion of the underlying wooden dam (as we suspect) or seepage t under the dam was not discovered. Therefore, the feasibility of repair or reconstruction work was considered. Those methods presented appear to be the most efficient and cost conservative. However, we also feel that the leakage could be studied further by backhoe excavations at the front of ' the dam. If the leakage was concentrated in a small area local repairs might improve flows from the collection gallery. ' Utility of Lower Dam The lower dam at Springbrook appears to be stable in its ' present condition and could be used as a water holding facility. TLere are two principle functions for which the dam and holding pond could be used (, ) enlarged collection tarea for spring water and (2) flood protection from surface runoff. Because there does not appear to he a sufficient amount of ' water to be gained f-om additional spring development an enlarged collection system in our opinion is not needed. tThe lower dam has already exhibited a use in flood protec- tton. and we feel it should be maintained as a flood ' protection facility. In providing protection from �loodirig a certain regulated water level could be maintained in .he ' ponding area offering ar aesthetic as well as useful purpose for the lower dam. 13 If any questions arise during the review of these studies and subsequent recommendations we would be pleased to discuss tthem at your convenience. tHART-CROWSER & ASSOCIATES, INC. W. '"" r Co ' Hpdrogeoluc.lst pQr. „ $� hh so t Professional Engineer FJcn�N,�"CNG� t rREFERENCES r r Luzier, J.E. . 1969, Geology and Groundwater Resources of Southwestern King County, Washington, Washington Depart- ment of Water Resources, Water Supply Bulletin 29, 260 pp, r r r r 1 1 r r r r r r r r r ' GEOLOGIC MAP — SONGBROOK SPRINGS • I I I + p 4 - Qr WL INN •p Lope, tY v`I \ Oen b Q. ` 3 1 r I V \ 0, o I n \\ n ' 'll 01 \ oil a / 01 ID 11 I p II I N'1 ri �r r a 11 II O ri O r II � _ - �Iri ii �iO S li II a II Il a rl rr' _____ __ SEn'L Ir II `rr IIIL b n $love/D., Sea. MCI- Gloi IRL 0 200 400 400 ' ® Np,u.w Bea. SCALE IN FEET R Ouar.v w SILT and CLAY Ilarenpl C*- Sp,wE O- J 215 AUGUST 1975 ' -- Gwropt ConlxH- n Sony 611AVELW MART-CROWSER 9 attDC10f@S InC ae.Ma 6,v iY SANG FIgUf@ I SITE AND EXPLOATION PLAN T9.1 LEGEND a n so so B Borinq location and number VALE W pay y Test Pi' tocanon and number ' J-215 SEPfEMBER 1975 MART-CROWSER B assocnmes inc tFigure 2 .0p EXPLANATION AVvmu mrl+t (wl W.. xf plMYmrb wrlNr in .4Yrr M.bre11Ju11..1 _ YNn.•xn bM.Yrinri IV AVWUVmar' &W, +YI Y.Lr 4W u Lrulpm•V.Iby P.I.r.•.Adl ICY M.Jr I.L1Y�•wYyr�Mr IY.x.wn.l eY.Yrr n.rvuMolw aorgr ' IyMr.I.rN J�m:w~ul nnulYl Y.Irr nl ' Fiqurc S - ReRlonal Groundwater Piezometric surface in Pliestocene Dep,: sits and Watertable Levels in Recen. Alluvium of Duwamish ' Valley.(From Lurier, 1969) t FLOW NET Ein ' * 9 Dom Existing Dom - c.. SL l 8—3� DEBRIS ' --------- -- A S�dv GRAVE, .o ` h Grotigv SAND 6 Stlly fin♦ SAND 1 1 1 n Q - kht nd 1 0.2 ft/ruin .i ft 0 0,45 ft2/rni❑ per unit length of dam ' Q ^ 485,Opp gpd seepage under 100' of dam ' J-715 AUGUST 1975 HART-rROWSER 8 ossoc,tos nc Figure 6 1 FLOW NET Exting Dam with Leakaglp 1 1 1 Existing Dom— B-3 - 1 — SLIDE DEBRIS ----- cam-_---------------- 1 Sonar ORAVEI f� to •-. G.nWlly SAND i f 1 Stty iin6 1 SAND 1 i khl of 1 Q - n`. 0.2 ft/min 3 ft 1 .0 1 0.5 Ft2Adn per unit length of dan, b47,000 gpd seepage under and through 100 ft of dam 1 1 J-215 AUGUST 19n 1 NART-CROwSER 8 o66ocmre6 mt Figure 7 1 FLOW NET PrObsed Cutoff Wall 1 1 1 Proposed Cutoff Wall �. 8-3 IL me- t — -- I SLIDE DEBRIS __ 1 SanOY GRAVEL 1 1 e :AND t II 1 1 .Y. yANp 1 1 1 Q - kh i "fn d 1 . 0.2 ft/min 3 ft 13'2 1 . 0,15 ft2/min per unit Jength of dam Q 162,000 gpd seepage under 100 ft of dam 1 1 1 --215 SEPTEMBER 1975 HART - CROWSER B associates Inc 1 Figure 8 1 � � 1 1 1 1 APPENDIX A 1 1 1 1 1 1 1 1 i 1 1 1 1 1 ' LEGEND SYMBOL DESCRIPTION ® 2 0 inch 0 D Split Spoon SomPle water level and date measured 19 Observation Well • Standard Penetration Rva.stance N-valuc ' (WO pe.ne anyni, So'awv,ptua•par lour 1 ie No 7eccvery SAND ' Sandy GRAVEL Gravelly SAND SILT ' NOTES I Soil descriptions are mterptebve and actual cadnges may be gradual 2 Water level,it mdicaled,is lur dote indicated and will probably vary wilt) lime at p:.0 J-215 SEPTEMBtR 1975 HART—CROWSER & associates inc Figure A -1 1 • • BORING LOG B-1 i 1 PENETRATION RESIST"CE SOIL MTERPREMON Bloas @e.1e,.. • Como fam04 t s u N so M NM 1 0 -- .�. - Medium dense, wet, trnwn to `ray, silty. sandy GRAVEL O. 1 :'r 1 1 2 Loose wet, Cray, tlayev SILT with 3 to organics l.t.ri.yerod fine send and @tit 1 5 Is Oanu to vary dense, wt. Cray, e • send y GRAVEL aI Saturated to loser portion T 1 •O ZS e' 1 g Very dense, saturated, gray, silty fine r30 SAND 9 r Bottom of Rorin 34 Completed 6/13l75 r 40 r r ,° i fRftR=flfENf r Rt.R d-215 AUGUST 1975 r MART-CROWSER •osw ift u Figure A-2 1 BORING LOG B-2 • • 1 1 bENETMTgN IIEIgT�MCE SOIL 1NTERVRETATION Won ale set ♦ DsNb tames , s e a » w ao G 1 Madi. dent*, molK to wt. broea slightly silty, sandy GRAVEL 1 ♦ 1 b •let Loose ieM Medium dens@, saturated, gray, 1 sravelly SAND 4 ♦ W 5.5 No Recovery S d n S,,Dltr ib bottom of Horins C=pletod 6/12/75 1 20 55 1 Te 1 1 ao 1 eS 50 1 WATER CONTENT *lease 1 J-215 AUGUST 1975 MART-CROWSEF S oaWGa1H mr ' Figure 4-3 1 BORING LOG B-3 • • 1 1 PENETRATION RESISIANCE SOIL INTERPRETATION more ee,Sooi • De Pe SewON i 1 i0 w lees Q 1 SLift, Hoist, gray SILT 1 l elide deposits) ■ 2 Do:net to voiy dense, aAtuated, gray Bndy GRAVEL 1 0 3 1 A � Layer of gravelly SAND 1 20 a 1 25 9 f' 30 iV.rv SAND dense, saturated. Eny. silty floe IO SAND 1I I I 11Aottnm o orin 35 Completed '112115 1 40 I 1 45 i 50 9ATER CONTENT eartem 1 J•215 AUGUST1975 1 NART•CMINSER 6 essotgles mt Figute A-4 1 BORING LOG B-4 • • 1 1 PENETRATION RESISTANCE SOIL INTERPRETATION 81op sr•root � Mala Ae,aeN ! f p M t0 iea IM 1 1 5 i 10 1 5egln auaPling at 12.5 lust 1 � aatuceted, gray, gravelly 1 15 SAND to sandy GRAVEL 2 J 20 A .y 1 5 25 a 1 1 d I Dense to very dense, saturated, gray, 30 silty tine SAND 7 1 55 Bottom of goringg Completed s/13/75 1 40 1 1 45 1 50 VATER CONTENT 1 ~�I J-214 AUGUST 1975 1 NART•C"SER A aab0c.04t ,ec BORING LOG B-5 PENETRATION RESISTANCE SOIL INTERPRETATION bloat so,fool ♦ Dpap Seaple t f a to to pG ten O IDote to very dental eatuuted, gray SAND IF M, 1 2 5 1 ' M A • i0� '< ; ' t so ,�. Dandy to very dense, lly SANed, gray candy GRAVEL to gravelly SAND 5 ' g I Ib 8 0 P tl 1 9 I ye' 25 t a, I t 10 o b —�— t 50 Very dense, saturated, gray, ality f the SAND ' ll 35 ' I2 00 17 ' .45 t 150 bottom of Borin(( MMTER ODItTENT Completed 9/I3/75 ' Parton, J-215 AUGUST 1975 ' NART•CROWSER a 0e0oa44e mt Figure A-6 BORING LOG 0-6 t ' PENETRATION RESISTANCE SO4L INTERPRETATION a bee ee,tom & Death YwaM t f q to en qa Ret O Medium stiff. vet, gray SALT li 1 5 I Soft, vat, dark brown, sandy organic x SILT (slide deyoedts) Dena@. aturaied, gray-brown, s,Ity 7 gravelly SAND 10 Very dense, sturated, gray, gravelly 4 SAND to sandy GRAVEL S ^ IS m 6 t 20 8 I ' a xa � to ad 70 Very dense, saturated, gre, , silty fine SAND II 34.0 ' 3 5 Hactom of Horin`` Completed H/Il/75 40 45 1 50 WATCR CONTENT ' aateMt 1-215 AU.�uST IS75 HAP'-CROWSER S assoc W me F�qure A-7 1 LOG OF TEST I�T TP- I 1 1 - 1 / rONCRETE WALL i J 1 EXTENSION OF OLD WALL S-i Q t. 1 TIMBER 11 7-21-75 - 1 S-2 J WOODEN DAM u 1 IU 1 t•.nt mrr^ rtKbnta,Oq Or wywu, .•„• 1 a- I Moist , grnp and brown, sandy G"VEL with some organics, wood 1 chunks (Fit.i.) S-2 Saturated, gray, sandy GRAVEL. 1 S-3 Saturated, blue to Gray, clayey SILT with gravel - not continuous 1 Note: Seepage direction from the middle of the dam 1 1 i 1 1 J-215 AUGUST ?975 HART CROWSER B ussooaws m<. Figure A-8 1 LOG OF TEST OT TP-2 1 1 1 WEST EAST i I 6 S Z j 1 GRAVE , 1 atw.t our. cc yanuno. ..o oi.0 ruin 1 S-1 Dry to moist, gray, sandy GRAVE:] _ (FILL.) ' S-2 6.n Moist to Wet, blue-grav SJI.T to Clayey- S11.1' at West end of test. pit. Gravel With seepage at 1 east end of test pit. 1 1 1 ---- 1 J-214 ZUGusT y,, HART• CROWSER IA oMw,alet in, Figure A-s 1 LOG OF TEST 9IT TP-3 1 1 1 EXISTING DAM i V I I � 7-21-75 II I I I 1 1 1 �rra .r,r� c.�uaq�u�r o, un.,°, •.�u IDpCMJL4b� .o^y,r � 1r �<r urMll\(qs 1 S- I *!Dist, trey-Lcown, silc;htiy silt, sandy eravel (FILL.) 1 S-2 Moist t0 wet, :glue-gray, slightly clacrc, silty fine SAND 1 i 1 1 1 J-l15 AUGUST 1975 NAHI - OWSF.N !! asfooAlvs 1W Figure A-10 LOG OF TES-i 0IT TP-4 0 ' EAST WEST I � S_I n 7-21-75 w S-2 LJ . 1 _ GRAVEL wrtn �I SEEPAGE 1 r ' vx•rl urn. arwnurlox or wnxl4 .0 rpr IOpcxn loxi rue• y .0 Drat.rbre coxnx x ' S-1 2.0 Moist, brown, sandy gravel (FILL) S-2 4. 5 Moist to wet, brown to red brown (streaked), clayey SIL.'C to clayey allty fine SAND with wood fragment Note: Appears to have been pushed ' Into place 1 J-215 AUGUST 1975 ' 4RT• CRUWSCR ;i ussuclolas mc, Figure A-11 ' GRAIN SIZE CLASSIFICATION _Sieve Analysis .HydrottKfor And sisis_ sya N e�,y,. Mfcaaa IW,hoa,of won Nr w,Ws IN"" Onto Nw M J ' W -loss S . ° 1 h a° It ,o J It „ w a Y 5 f4 It c 1° s 3 ' !° — — - — .. io— Q 1 wo 1 °% g3 • p. . • c.o�t Sill M%bit t F CNON��C nM tine IGoorMT Nwufo-o Foo FWAS 'y *."I9oM Not. AIIvOafy L.fo 5°W1pM ewh-ts use— cL.anaetw. WC LL PL 1'1 B•I,S-1 5' GMBM Silty fine SAND 1 t 1 J-215 SEPTEMBER 1975 t HART-CROWSER H ossociat<S m. V igme A-12 ! GRAIN SIZE CLASSIFICATION ! ! Sieve Analysis —rHydrometer AndYsis lue e1 ow y is M.Me N---M- ,at Wee Nr "'Uslsm"Vii Orel. &n M me ! _SSSS 1 s 30 s en .° 4 ! l0 0 { f0 — lli 1 e w ! J $ $$ . • R °. . -. . . e . 'oa ao" b" So$ 10 $ goo • GrOM $,[e M MIIINM/efl I Cobbles��iM.e1 hw Fifty" J 1 So"is Oege-fl USC. CIftufacNa Nat Al L Ft Le l WC % L P PI H i'Ii FM Silty fine SAND i 1 1 1 J-215 SEPTEMBER 1975 1 HART-CROWSER a usso.wees M< Fiqure A-13 GRAIN SIZE CLASSIFICATION _Sisv—s Anaa"I Hydmili r_And�sis Y. IMW.101 WM NI�,us elYM1. MM !M N C i:tit . 4 s s Y 818 3 a to to 0 a \J — 6 •J — \J tr — 8 $P _ a• clal Sw n SA,llwwl.r. � � 71 � s �0 8 - l..lr rw Gar\t cosE4. hwl so" Flllr SomPN Depth." ULQ Cmudm /VII I C 411\rp PL l m,l• 1 we x. a PE ri P S,S A 10 SP Gravelly SAND 1 1 1 J•215 SEPTEMBER I ' HART-CROwSEN a assocwlf, ,,,. Figwr A-I4 ' GRAIN SIZE CLASSIFICATION ' S»vn Asp �_ H romefer Arr tw N 01w11•YUM. *A""to.wm w w."MrMM� Mr Lr 1._rw ,p 1 ' .0 — .0 If .0 .0 S S S� 0 to u t 10 rim ,y iey . . . , . •ss as a x • r, ., (� C.Nw /W 1C.eerw WOxM fM, 11 N01 A.w oeq t mm. Sampq coo.11 ust cil" "t" wt s tl. K 1.1 N G,P n 34 SM Silty hne SAND t 1 1 SEPTEM®ER 197S NARI-CROWSER & oltf.Clo/et .p. Figure A-15 ' E.PPENDI\ R ' IIELD PROCEDURES The field exploration program consisted of six borings and four test pits located as shown in the Site and Exploration Plan, Figure 2. ' Tic bnrings were drilled to depths of -i4 feet in order to give a representative evaluation of subsurface conditions ' within the upper dam area. The borings were drilled using a truck-mounted, continuous-flight, hollow-stem auger drill ' rip, subcontracted to our firm. All the borings were observed by Mr, pot Spencer, a geologist from our office, who prepared a detailed Inq of oath boring and obtained representative samples in air-Light containers of each soli type encountered ' The logs of' the exploratiov horings are based on our inter- pretaLi.on of the field and lahoralorp data and are presented In Appendix A, Figures A-Y through A-7. Each log Indicates itht various types of soils encountered In the borings as well as the depths where these: soils or characteristics of ' these soils changed, although the change may be Gradual . TO the left of the classificatinn of materials tla ❑umber and depth of each sample is shown. The semi-IogariLhmic graphical plot prcaenLs the Standard PtneLrntion Resistance values that ' w, r, thl tined during the taking of the split-spoon samples. I- ,.., �, ,"tailed usine the Standard Penetration c pry„ lore in which a standard split-spoon sampler is ,.riven i n the >", l o distarne of I� Incites using a Iwp-pound hammer ' fn ! . Jlinc ;tt inches. The number of blows required to drive. Lh, .,u.plvr the last 12 Inches. or I toot, Is known as tht tStandard Penetration Resistance. Phis resistance , or blow count, provides a measure of the relative density of coarse granular soils. such as snuds and gravels, and the consistenev of cohesive soils such as silts and clays. 1 A-2 • rThe test pits were excavated with a rubber-tired truck- mounted batkhoe provided by the City of Renton to depths rfrom 9 feet t:j 11 feet. -tie test pits were logged and representative samples of each soil type or soil condition rencountered were placed in air-tight containers for further analysis. The test pit logs are presented in Appendix A, rFigures A-8 through A-ll. r r i r r r r r r r r r r SECUND REPORT ON WATER SUPPLY DEVELOPMENT SPRINGBROOK SOURCE (VERTICAL DRILLING) CITY OF RENTON WASHINGTON Copyright May 19'/5 CH2M HILL, Inc. Seattle, Washington Record No. 59336.0 Copy No. ., _ WATER SUPPLY DEVELOPMENT AT SPRINGBROOK SOURCE GENERAL The work reported herein resulted from the recommendation by CH2M in a July 1968 report on horizontal drillino at Springbrook. AUTHORIZATION By acceptance of our letter proposal, dated 6 September 1975, the City authorized engine=ring services in connection with drilling a well at Springbrook. PURPOSE The purposes of this report include: o Record the history of drilling by H. O. Meyer Drilling Company, Kirkland, Washington. o Report upon the well construction and testing. o Discuss tie potential of the well for production. o Make recommendations. DRILLING AND CONSTRUCTION Figure 1 shows the construction log of the 268-foot- deep well. Four sizes of casing and a 50-foot PVC well screen were the major installed components. Figure 2 is a geologic log of the well. A 20-inch casing was driven until a clay layer was encountered that would act as a seal between any upper and lower water-bearing strata. The clay was found a- 44 feet and the casing was driven into it for 8 feet. A 12-inch casing was driven to 105 feet where it could no longer be advanced due to lateral pressure from the pene- trated strata. Eight-inch casing was then driven until it became immovable at 195 feet. Six-inch casing was therefore installed and driven to the bottom of the well at 268 feet. The geologic log shows the material encountered and the water-bearing strata. In summary, the material is glacial in origin and consists of alternating sands, gravels, and clay. Bed thickness varies from a few feet to 30 feet. The aquifer, which was eventually pump tested comprised gravels and alternate fine, medium, and coarse sands. Water-bearing strata were encountered at several depths as noted on figure 2. However, bail tests performed at those depths indicated that only small quantities of water existed above 220 feet. At this depth the water level rose in the casing from the drilling level to 74 feet. A bail test indicated sufficient water present to recommend a pump test, but it was decided to continue drilling until the aquifer had been fully penetrated. Water samples were taken and tested for quality. The data is discussed later in the report. At 267 feet, the bottom of the aquifer was reached and drilling ended after several feet of open hole had been drilled into the underlying impermeable aquaclude. Fifty feet of 6-inch telescoping PVC well screen was installed with a lead packer and the 6-inch casing pulled back to expose the screen. PUMPING TEST A nominal 250 pounds per square inch (psi) capacity compresr r with 268 feet of airline was installed in the well ar .. used to develop the surrounding aquifer by horizontal jetting. Development was continued for 10 hours with about 1-3 cubic yards of sand being brought out of the well. The well was first test pumped during the afternoon of 19 March 1975 a� a trial run to check the equipment. From static water level of 74 feet, the drawdown came near the end of the airline when pumping at 260 gallons per minute (gpm) . It was concluded that test pumping should start at 200 gpm. An extended pumping test, lasting 7 hours and 13 minutes, was run on 20 March 1975. The field data are given in tables 1 and 2 and are plotted on figures 3 and 4. Very little sand was pumped during the test, indicating adequate prior development of the aquifer. WATER QUALITY After 2 hours of pumping, a water sample in a sterilized bottle was taken for quality analysis. The results are given in table 4. The reason for the difference between the two sets of analyses can be attributed to the nonsterilized sample bottles used in the first collection. Analysis indicated that water quality of the well would be acceptable for domestic use. CONCLUSIONS AND RECOMMENDATIONS The tes': data indicates a specific capacity of 2 gpm per font of drawdown at 200 gpm over less than 6 hours and without definite stabilization at 106 feet drawdown. The City can obtain more than 200 gpm by drilling additional wells in the Cedar River alluvial fan near City well. In order to justify the cost of a productt n well at Springbrook, a capacity of about 1,000 gpm at a high pumping level would be required. in our opinion the sustained specific capacity of a well of this size properly constructed with gravel pack and well screen would not be obtainable in the aquifer presently encountered. The possibility of exploring for water at depths below 268 feet has been considered. Examination of all available local data and discussion with Robinson and Noble, ground water geologists familiar with the local area and the Rentc-r Cedar River Well No. 8, has produced no optimism that an adequate production well can be obtained at Springbrook. Farther drilling is not recommended. MEETING AT CITY HALL 7 APRIL 1975 A meeting was hold at City Hall on 7 April. 1975 to discuss the Springbrook well. The recommendation was made by C112M HILL not to continue drilling but to request H. 0. Meyer Drilling Company to salvage casings and screen to the extent possible and abandon the well in accordance with State requirements. This report is being submitted before the above steps have been completed. It is recommended that photographs taken by the :ity be attached to at least one copy o£ this report and thst a site sketch be included to record the position of the abandoned hole. 0 CH:M SMACT lYJ YP D iE 4 -- . - - - - -- - / - - - - -- - - - — — — — — — — SHEET NO.—1J=— �— _ HILL � .noxcT No.t dti�z I ver .(• sR i 52 - /0-5 — Id �•Yf S Ch swt joy! "COE..." - re. Ai Lea p.akf� Sr.r sr+• \ fit• .ov5 Y r p - - -- .---5a O'T F✓t well Serf<.v room It CH7M ` '" sualEcr_� t •-sYvak G k-) -f f s MY . ogre 1= I •` ..�.. _ _ _ —r..�. - — — — — — _ — — SHEET NO.— __Of- - — — —- MOJECT NO.i?f^2- t G P.> 16 I c `o ea e 1.0 t 207 03CS /o.10 IV by wro{ •.-J �5 uu lil Sao no s. J .-.- Wrot...< c«...- t« s...l 443 — aW rY. S.. d (w.'1..) �It e.ri �.ra ae.d Fi 7IA r MILL ,. .,. swxcr'I ffir�._ . . c _.�'—�.0 ev�N7? o1.rE 3—Z-:Z VIM �..r — —•'1 ���_S_�l—e�F ✓O«�Y. W 3`1EF1 N(1.— L-OF11 _ _ — — — — — — _ — .ROJECt Clor./c I A.L../ � 4 -- - - - o�- prt I! (1F W.J / X7 /a! 1sP "' P'Pt / .2 ILA 7-0..� • uZ•� 8 /3$ 10 /�r: 1:7 9czo 1,4.a ry 9-'' W7 !S /Ey ay /4,Eo 7'. f • 4P`i= loo ic:rl� 1��:� l4so !zc Clay /! rP /H2 Iva //•36 Glro ye `�ca p.,� r �e ivr is 1S7 Is 3 /S 7 r-4 is7._ /d4 /.t7` Ite 16 /4= 1/40 :SP /;e !j G4 :L' /r'Y 1.1I ls� 'Poe, (z. c /SIR I T ble '1'd 19!§b /so FORM 1B SUBJECT 9 r• ►iao k W"k LJ— By—j".Jq DATE3•A']� SHEET NO-02—_DF�•�y MOJECT NU,S [f•+T�.J.1� 3 02`l� •7;,•ra5i-.- I 298 d2 a J do JCo "/.to y:/oIfB - �o vs - ��' �ec.coe z s 120 r.5 io `i.13 '?d R . 79.5 t/:zv q 4 H• :s ays b Ir:.'7 Tj S le 7c•b rblFORM z _, ...... �.,, .G 5493 Tj i f I I i rp r. V I I I � i � � ..� -�- - f �.__� ---- •� ,mot i?a# i - -� { , I I i 9.o9a-r ff L-L ILL j5� I - T , 9krc 3 •� r I I I I �_ fill 14 I i EYVI RCNHENTAL .`CIENCES LABORATORY CHILL WATER SAMPLE ANALYSIS REPORT Job No.: 58952.1 Sample: Penton well Date, 26 February 1975 Report to: Frank Pita Total Total Suspended M02-N ; Lab Conductivity Solids Solids Hardness Chloride W03-N Fe Mn Sample No. (Y mhos! (mg/1) (m9/1) (mg/1 CaCO.1 (m 1) (m9/1) (mg/1) ( 1) • 27 0.29 9.00 0.46 C3580 6.7 18.5 574 310 140 156 27 9.20 0.50 (A) Gallon Jug 100 22 0.84 6.20 0.30 C3580 6.8 17.5 362 92 'GO 22 6.76 0.43 (B) Orange Jar C3580 6.7 15.9 318 Be 100 17 0.64 5.36 0.33 92 16 5.44 0.39 (C) Antifreeze Bottle Acidified Filter 2.25 0.425 • C3580 2.80 0.46 (A) Acidified Filter 1.50 0.34 C3580 1.70 0.39 (B) Acidified Filter 1.43 0.31 C3580 - 1.48 0.33 (C) Repor!ed by: C. Zadorojny E14VIRONMENTAL SCIENCES LABORATORY L WATER SAMPLE ANALYSES REPORT Sample: Renton Well Job No. S8952. 1 Report to: Frank Pita Date: 25 March 1975 Laboratory Sample Number C-3741 Total Coliform count/100 ml 0 Fecal Coliform count/100 ml 0 Fecal Streptococcus count/100 ml 0 Conductivity umhos/cm 140 Total Solids mg/l 178 Total Suspended Solids mg/1 5.7 Hardness mg/1 as CACO3 91 Chloride mg/l 6.7 Nitrate and Nitrite Nitrogen mg/l 0.017 Iron 01 Manganese mg/l 0.44 PH 7.02 Reported by: C. Zadorojny CORNELL, HOWLAND. HAYES & MERRYFIELD 5-4563.8 31 July 1968 City of Renton City Hall Renton, Aashington 98055 S oringbrook Development Attention: Mr. Jack Wilson City Engineer Gentlevert: 'ransmitted herewith is a brief report to place on record the work at Springorook for developing additional water supply by horizontal boring. ti In our opinion further e.ye .diture is not ;ustified until the possi- 4. bility of obtaining the desired volume of water from a vertical well is exoloreo. We therefore recommend tfiat experienced drillers be invited to " su6nit competitive bids for vertical drilling. Further measures should be taken to guard against contamination of the supply from the recent construc- tion shown on Plate 2. - '' I Fery truly yours, d cORNELI, HOWLANO, HAVES & MERRVFIELD Antony B. Carnes ~` Ai3,do Enclosure: Report �r REPOR' WATER SUPPLY DEVELOPMENT a AT SPRING8ROOK SOURCE CITY OF RENTON WASHINGUTON Copyright July 196E by Cornell, Hovland, Hayes d Merryfleld Engineers and Planners Seattle, Washington Record No. S-4563.8 Copy No._� l WATER SUPPLY DEVELOPMENT AT 5PR;M,G3ROOK SOURCE WATER RIGiTS ^era has been some question in the past regarding the validity of the City's rster rights at Springbrook and, with the proposal to develop additional suppl: at Springbrook, a meeting was held on 15 November 1966 attended by Mr. Jack ;:ilson, Cit., Engineer; Mr. dilliam R. Smith, geologist, State Department of Water 4esoerces; Mr. Ralph Anderson, Department of Fisheries; and Mr. Barry Barnes, Cn2M. After a general discussion, in the office, the site was visited and the existing facilities examined. -'.e Department of Fisheries had an interest due to the salmon spawning whin takes place in the flat area down by the State highway and water comes fror tr:e two creeks at Springbrook. The findings of the Department of Cor.Servation under cover of letter dated 30 December 1966 are reproduced and bound in this report. The report of the Departments of Fisheries and Game is also included. The only certificate applying to Springorook is No. 463, the others listed relate to existing or abandoned wells elsewhere in the City. The writers commented on the report of the Division, of Water Resources by letter dated 14 January 1967, which together with an extract from the G;2M study of October 1965, is bound with this report. The Current status at Springbrook (July 1966) is that the permit for construction was extended in April 1966 to 1 January 1969 under Application No. 19590, REZONE REQUEST,SPRINGMK AREA Also bound in this report for the record is correspondence relating to a rezone request for an area adjacent to Springbrook which involved excavation and possible disturbance of the water supply available to the City from this source. PROPOSCJ DEVELOPMENT AT SPRINGBROOK Enclosed with this report is a letter dated 25 April 1967 to the rity Engineer which describes the proposed method of developing additional water fron the Springbrook source. It will be seen that the possibilities were horizortal drilling at the present collection facility, horizontal drilling below that facility, and vertical drilling in the area. At the time of writing this current report, horizontal drilling At the infiltration facility is the IU Only step which has been accomplished. Photographs of equipment used appear in Plate 1. -I- i The considerations involved in driiling horizontally include^ the possibility that the alternate pervious and impervious strata dipped into the hillside or away from the infiltration facility. Tne possibility of large boulders preventing an augering operation also had to be considered. Reliable records of the present facility do not exist, and there is no information on the strata underlying the collection gallery and the concrete retaining wail. The General geology in the area indicates alternate strata of pervious and impervious materials, and it is possible that the present supply is from a pervious tone Overlaying an impervious strata which could be penetrated by vertica, drilling with consequent loss of production. Vertical drilling would therefore have to be done with care and by stages using perforated casing and probably frequent pumping tests as drilling proceeded. Records of wells west and southwest of Springbrook were studied to correlate their ground elevation and static artesian pressure with the Spring- brook elevation 206. It did not appear that any well of record had a pressure corresponding to the water derived at Springbrook. It therefore appeared unl,kely that artesian pressure would be developed by vertical drilling at Springbrook which correspondingly increases the possibility of losing the present production to a lower zone. it would therefore appear desirable to take 16-inch casing down to a clay stratum and seal, continuing with perforated 12-inch using lowered by stages and test pumped as conditions indicated. • PROPJSALS FOR HORIZONTAL BORING The writers contacted several firms listed as engaged in soil boring or soil sampling. Of these, only Northwest Boring Company had the equipment to do the work required. A meeting was meld on 14 April 1967 at the site, and a letter dated 20 April 1967 with a proposal form was forwarded to that firm. It was returned completed on 25 April 1967, and copies are bound to this report. The proposal was reviewed by the writers on 28 April 1967, with a recommendation that the work proceed by Northwest Boring Company. With the concurrence of the City Engineer, the order to proceed was given on 2 May 1967. it was not possible to obtain louvered pipe, and 3-inch x 3/16-inc sawed slots, 42 per foot, in 14-inch x 3/8-inch wall pipe were substituted. Due to a delay in Obtaining the pipe, site work did not commence until 22 May 1967. The equipment shown on Plate 1 moved in on 22 May 1967, and boring proceeded during that day and the following day. After 12 feet of panetration towards the north corner of the site, a large rock was encountered, and it was not possible to drill farther. A total length of 45 feet of pipe was used, and the completed work is shown on Plate 1, with the experience gained from the first hole, it was decided to ask �. prices for drillinq 24-inch casing, and again inquiries were made of other firms without success. A further letter dated 25 May 1967 was sent to North- west Boring and was returned on 31 May 1967 as a signed proposal and was is accepted by letter dated 5 June 1967 for the work to proceed. OfLuulw 0ll.d OMIwOw nIN.OI baiaa3 �91 aw�i4 qJa,-91 xaoB '.a 1961 Aew L ti • %cwa,n03 D,, -og 'Yip' `• S' � � -% .` -r. • t a.. ' ,.�„ •� FourN Bore Nearest Cap ra Eh i1.` �inf ' Th{rtl F Juried in I �Irst Bore Nearest Camara 'et("d $Ore in Backarouna r \ r � ruur'[n Bore ;rd Bore Befcre (n,erir� 1 � (GIMu MOW11Ma.Mu is I YIIFORO N.vn r ncr'l, a .. _ :y TfiQ SeCOnd C,:."c . . I'ada in tnc+ v + Oa^t of t1'.e and 6;; feet of Z.-inch slotted n ,c r,js r tal led. The equ ':rt again -eu out and Moved back in on 31 Ju y -Ili! th,rti Jre was in the extrtre stiutr of the afea, Grilling a"prdxirate y South' alit A Contrete t"^rnSt b1CCK • �- n'stal;aa ti'e "jtv of Renton for tna :'d:"ire aeainst. ^.ere a ,;ijil;rig :vas Ver soft going, and l fect o' ertGratc, 4ncn ci,-e. •u„t of D',ank pipe, 10 feet of Per•£oiated. Pi-o, dno 11 feet Of Dlank Pipe r.i 141-tQi ruiner Of holes were instal led try the even'rlq of 1 August. By Ist a tot," of 7C feet of alternate perforated and Diann nipe had been . and there was no rore Pipe available. Tne Cast tvo blank sections were . � 1 �4-;ncn wall instead of 3/8-inch wall. The eouiprent trier, -loved out, i for new pipe. This third bore i> sho'.n in the botto, righthand of P`a:e ;t was noticed during this core that water in the lower pool became which was an indication that there is leakage fror, the upper pool to bfe :o,,er. `re antrvctor delivered to the City ''rater Strops 10J feet of 24-inch did I!,!? pipe for u-,e City to perfordte. -,Js was done with large holes as c+ • ' for the fourth Dore on Plate 2 The equipment cdved back on 2J , .,.st 1467 as an extension of the ttd rd bore. Work continued during 24 ',,....st, and a strata of very fine sand was penetrated at 130 feet in which covered r,.y Ch of the infiltration area. The sand had ,jars Rd the auger so tight tr,d t t-sere was difficulty in turning and reroving it. :n view of the volume of Cara encountered, which had to be removed by dump truck, it -.raS decided to stop drilling rather than try to penetrate beyond the fine sand. site meeting was held on 26 huyust to decide whether to install 14-inch pur°or„ted pine through the 24-inch to reach gravel on the far side of the fire sang, The contractor was of the opinion thdt the 24-inct auger would not be able tc drill further. it was decided not to pursue this course. A fourth bore has started towards the South end of the original infil- tration gallery as can be seen in the top right of Plate 2. Four 10-foot 1Qnytrs of 24-inch perforated pipe were installed into the hillside looking east directly opposite the small concrete overflow. The a;uipment then moved out. 6�h!:r;TS "ROV! i+OR1%O(tTAL BORSNG ANC RF.C'Y•iM<ljDA':CP, Mow reasurements taken by the City at the chlorinator Boise indicated an increasr if about 50,000 to 70,000 gallons per day had resulted from the first two borings. V ..ever, the flow from Spring1brook is dependent upon snow melt in -5- `F@ Cdscddes and weather CondlU Ori dr.; .'CYQ',•'@ �i.ctua:es fr,,m year to year. Is also d:fricy',t :o w al„y:e tae ; . Lnp wore oorfor-ad to date it is De"L%'" :Cat ,�t1S:�\. ',.c....tate 4 t v $ig ay below r,ringbrook ras..'ted in red..•_a r;a. t; t.@ ,_ Lv� is e.. •.st rur; :.�' . , as r;tana` ircreased the S. r rGbrw. aid it. is re �;.e•. t•m: e.r%wd:ory vertical dr11'in9 ti Der`or,aQ befOre continuing '..lth ❑..r'.:Ontal OOrlgs below the oresent Col'ection }dCi•iltl@s. .6. 5-456J.B 25 Aprll 1967 i me. Jack Wilson City -'ngtnt�r City ..f ?onton City Hall kenton, Washington 48055 S�rin�brcck Source Aevelon'ent Dear Jack: Ce have considered devflDpment of the Springbrook source by drilling vertically or horizontally into the hillside at the preseet Infiltration area. This letter put% forward our recomandationo. The City hunt develop the overall supply capability of the water averen in order to keep Ahead of dmands vhich w111 be made upon It. in our opinion the Spring- brook Area will oroduee more enter than is currently ovatlahle, and it, potential 4hould he tncreaoeA before drilling odditiopnl wells in the Alluvial fan of the P CodAr eiver. However, if appreciable expenditure to to he incurred, then the reliahtlity of the source and the trannmtsoion line to Talbot reservoirs meet be considered. Tate Springbra V source was first developed in 1909 and has been in cantinuou■ use iince t'.at data. Examination of City record, indicates that it has heen A reltAhle source tiroughout the years. However, recent highway construction appeared to reduce the flow to the City and regard must be had to the no+Atbility that the t ex1,tin;t routs, could be disturbed by work at Sprtngbrook. Unlovs adequate precau- tion% AT, taken, vertical drilling could result In leakage of high level -Ater to strata below a confining layer. Por this reason it to preferable to first drill horizontally into the hil!aide and develop tore water from the coarse gravel strata which presently supply the City. There in also ages risk in horizontal drilling becauae there is m way to visually doteratne the dip of the strata back into the hill.,tde. We racomend that horizontal perforated collector pipe., be drilled intc the e hillatde And Dtped to a valve caisson connectod to the existing inlet chamber at the head of the tranamtsaton line. This will protect the quality of the water And providr A measure of control. Experience with the first collector Dips will Indicate the number of colleetore required to develop the flow permttted under the water right which is up to 9.28 efe (7 mgd). i!r. Jack. Wilson 25 April 1967 Page -2- Tn- noxt nrontstnP area to devrlon ... .. c10 rxi-tirg Pallerv. After this, additianal collector pipes could be !r.sr,.lir F. Inver down the creek which would not remit water to flow by Rravtty to :.k:`at. It would then be Peeessary to Provide low lift purnicg to the elevation of the existing inlet eheoMr. We feel tAst it will be ponsible to 4evelon sufficient water to watlfy renlacemant of tic 11,800 feet of 20-inch steel lino when. 'tr. condition warrants. The replaeenent size would be subject to ecanomic evaluation. It would be desirable to increase th. Pressure in tiro flat industrial area scut". of Penton, and this can hs achtrvc;i by providing a staniclpe approximately :.o fort hiRh at Snrinc:`rook. The resulting higher pressure would increaee the fanacity of the erananission line to Talbot. Construction at Snringbrook should aim at mai.ing the greatest ..se of vacsr currently available, and to be developed, at the nre�ent facility or lower duwn- stre,m.. A collection tank with low lift numps and duplicate pipelines would allow full :evolor�ent of the source. The enclosed drawings Illustrate the proposed facilities. 'C1th tiro degree of flexibility descril.ed above, we recomend that develoanent of the source proceed by ntages. The consequences of the eventual stand Dine will be discussed in a further letter dealing with develOrment at Talbot, distrthution pressure macs, storage reseovoira, and Punos for the S.L. area. Very truly Yours, CORNELL, Not XM, HAYES 6 MFRRYFI£LD I Antony H. Barnes AHH/dc Enclosures [Ravings (2) e �I u! 7 I. `4 T � 1 :a W �f) Iu T,\G5 r It � ri t die NJ 'rl,j� pl ?r, , 11 lV Urt i� 01 ; Sm , U i 1 ilf,�tlll lid - a' a�,rl t4za.Use C, e4-,- -4&4a• .e......,w \ �` y \at ],f .:\r.\:..0 .�•V.. .r a�i uiA wLiuOn4 cs.uNy....IN„<t �IeuV i• wt.•,OO•I.t.1M DIN",: Fvlwa ee.lmn YOVal.Y ..r„l e....i. • 'JU Office of City Clerk Ra,a 104• City I:411 Renton, Was"ington 98055 ATV.NTION: !loinie Nelson City Clerk Gentlemen: Re: Surface Water Application NO. 19590 For your information we enclose a copy of our findings in connuction with the above numocred application. Tnc application has been approved and a permit will be issued In accordance with this report upon payrrvnt of the statutory feo 01 5 40.00 Plaase make all checks payab.a to the Departma nt of Conservation• ti very truly your$, DIPART4NT OF COKSERVATION i �H. W. POLLOCK, Supervisor Division of Water Resources IIWP:In Inc. 1 a. 4�f•S �\ S1 hlCGVFy S.F.No,8399 aa:•Vlal vra a:.la.ua.vall� Na+c^Art 15. 1%6 'Date of application W.I. 1 .roc Date of ea_:.: ;.,.:..,ri 4990 Application No. 19594_-._ Name. . City pf Raatea Ad.lrss Ciry Mali, Engineering Departgap�tt 5 Renton, Wallington 4g Quantity app:icd for °.28 c.f.s, L'sr Source of approprian.on SDrixia;brork Cr_s:: Tnhu:ar} of Duvamish Rivet Tracts ? 6 9, Plat of Spr ingbrocrt :u.. " _ Legal sub ,lthia SE}.'$; See b gdc , S, County Xing _, ......_. Measured or estimated uaAnl • Svc records - :lac ^c.;rota: .+ ;rp - q ) �, Probable low flow Quantity pres•.l;isly appropriated. WT. 2.15 t.f. C%%T 2.3.', C.L.S. ET. 2.30 c.f,s. ... Other uae muide of wai-r Daaestic supply. .rrt�"t:Ja, e".+,ucipal supply, fist propagation Divorsiw. works contemplated wwbo omt Additi.onai Ivve:aP«Tent of the ourcc, gravity pipeline site 4-19b'.�_. Other equipment Cas i ..orinator lmgeble ac:,Ase P;,,nned Prisrnt Feasible .Other water riClAs appurtenant to this land Se. below Progress of project Not begun Protests.,Dapry:Meets of, Fl.+heries and Game (9-:p-ball vttndrawn (see below) , Quantity rrrommasded (total] e.:'S c.f,s. 6 ;r,-�g Dom. 6681.0 ecru-'e,r p,- year Power hfunicipal 6.2A ;,p,;::, n mr+;.•, Jere- Other uY„3 t,•ct per y,•dr Department of F4,;hci in and Gam, ,oport Seo below Special rrmark;and provisional: The report of the Departm,n' . of Fisheries and Game is as followi "6epresentativas of the Department of Fishertes and the Ji ,irtmenf of Game have made further field inva+ttRatioas of !ha abovc noted water right tion. "410 l0cAt Ian of .1'Iu Pul,tt of dic.r rsior., $E:,;:C!„ u;:o :bvoa4ip 2: Sera, Range � F,ast W.M. in Xing G _inty, it vas 1,.;ieated th.0 t::.: ap'%,all �� wvs lnelcsivc of the editing water rlght bo Ltl i4 the ,p,antib of apptoair„al,l) ....�. '7T+e ficl- :nvcaiOtion rcvcaicd that the propa:ai is to d .clop sprims in the :mr3:ate area. Of the ptes,•n: pit,-t of :ivers.oa. i:atstin,; ,,tr,vn flows „warns tiv area wall still be "bypa.sel Any oc,•..1 down Spr ingi,t ool: Guar.. 'iL, fi.p,a t,y 1'7ab.r.ua and B.,• Dcportmant of Coma will hove no obj,rtion to the approval of this .Icvr:, nmrnt of fire CItY of Renton, pro- viding a nin;rum flow of 1.5 c.f.s. is as into tned near the comer of the north boundary of ction 6, Township 12 North, Range ,, East W.N. Mass, depar;cwi,ta recomsw•nd these comments the Iire. i pvoteat ftlad against this wear right application and proviously submitt,a to the Supervisor of Water Resources." RZPORT OF ME DIVISICS OF WATER plans fPz ,:i* davv lopnrti of this of indefinite at thl. tl-.e. Init;a'.1v, a vortic., to b, .. treated to aid in deter. mini;.4 t:,v proper of Jev-_-!o".vlt t!e ,pod that L1.0 spring 6our,, c,'. bo by means of horizontal col.ectors r.;ctLo,! it. stratified $)*Cial Sena$ and gravels. flier: ,,, - r r;,,JJM zt 20-ilc!l st". _;roeit)' pipeline it a.. Springor,,-k ..prings to t"i T�lt a R' rvo'f 4- This Pirolilll' is eniPPQd with 4 il,at alvo wi.i,h causes 4 cei.aZlojl Or t.,w In the line when t,)i re,ervoirs are full. T-e ;ipelil.e now has a WKImm cap&cit, of about 2.31 cubic fco, per second. A paj�llel p1polint will be oddvJ pro,-Jed sufficieit water is developed to Justify additional Lrantmission faciliti". The City Or Renton enjoys the following '­.tod water righr%; r-tt,-.olnual .,,,rta.e Water C,rtzfi:ate No. 2.j (1032 Spm) Ground Water Cert.fi:ate No. M4-!) I70 ';P;., 273.5 acre-feet "I-D 2b3 ':P,1 424.6 1. bab-D lc4u gpM 167".0 o 887.D 1040 gpM R18.0 1591-A 1300 ;t"M 2100.0 3564-A 320 gpm 51'.') 37'0-A 150 pPln 2. 1..3 754. 15")0 t;PM 242J. ) '1600 Rpm 25 7t''o 7v "iO Y'PM o 7681 2000 jt,'w. 322(.6 loLdls_12.665 gpn 17.399,S" • No annual values wore being assigned by this office at the time this filing was made. 76ul.8 acre-feet prii.ary right; 9737.7 acre-feet supplemental right. Thu PlAnnin,'. CIftdAslon of the "tY of Kenton it, F.-hruary, 1969, Lomp,10 a report of population Ch,1r&CLer%stics for t1o, Kento,i Urban Area. This r,,port inCJCstVd 4 259.6 per r -nt increase in population for the por0d 1960 to 1985. , comprehensive report On t*le r1unicip4l water system for the City of Renton prepared by Cornell, Itowland, Ilay,,s a:,d Merryfiald (CI12M), October, 1965, postulated that the city, by 1985, wcild knereasQ its eater service to 4L proportionate population increase, or approximately 57,0uv persons. The report by C112K And—Ato4i that the combined Tvsi('vnti&i and comm.rcial usA';C by the cit. in I964 approximer,-d 100 gailonu ter Capita pot day. A spot Cite" in the Heather llo'.ol and kvnt.ni Hill treast indkvat,,ol .. p,, .,okra co,igumption of Ill gallons per Jqv. R,.aouith Into per capital wate, kltmkodn la 4ent.orn W-oti,ington (prusuntably by MOTO has shown an s:stage demozn.! or l20 „allans per day. ,L: :eJ,xnuenc study conducted by this of Y.ce has resultud in a sli6a:.ly higher figure, 140 gallons per capita per day; however, all heavy incustrial demands were inclu,ied in our study. The surgested 120 S,c'd figure used be Cli,M appears to the writer to be very real- istic ana is used as a basis for the quantity reco=endacions. Consequently, the annual demand is calculated to be 7661.3 acre-fcQt for tt.e p.ojected 57,000 population. The euntinuous diversion of 9.28 c.f,s, would result in an annual volume of 6681.6 acre-Lear. Although approval is herein granted for the development of the entire 9.28 c.i,s„ it is the writer's opinion that difiiculties in developing this entire quantity may be encountered. In view of the fr:t that tho city already has a:: existing certificate of water right for 2.3u c,f.s. an this source, 2.3o c.z.s, as gwuteJ u..der this application must be considered as a eupplemertal right and 6,98 c.f.s, as :, primary right. It IN thou-:Lt best to incl,idc tie quantity granted under the original right under this filing lance there may be some goeation as to the validity of Certificate No. 463. The C:tv of Renton wa, enjoined from using the waters in question in 1932 by the King Court. Superior Court, the order contained the language that: "the defendant- rc.pundant. City of Renton be, and it is, hereby enjoined from using the waters under sat-' ,,rm,,t No. 1555 know Surface Water Certificate No. 463) until such time as they have acquired th.> :i,ht by purcl,ase or by condemnation as provided by law," The Washington State Supreme Court affirmed the decision of the lower court, 1Lere is no evidence in the files of this office to indicate that the injunction was dissolved. Ir •.-low of the fact that the City of Renton holds water rights totalling '761.8 acre- feet under existing primary rights, the total annual diversion quantity, 6681.6, is approved as a totally supplemental right. As provided under RCW 43.21.130 and 90.03.360, a master meter shall be installed in this system to masure the total amount of the diversion. Use of the waters to b, appropriated under this application will be for a public water supply. Santo Board it Health rules require every owner of a public water supply to obtain written approval from the State Director of Health prior to any new construction or alteration& of a public water supply. The applicant is advised to contact the Washington State Department of Health, Fourth Floor, Public Health Build' g, Olympia, with regard to the need for compliance. In accordance with Section 90.03.290 RCW, I find that there is water available for appropriation from the source in question and that the diversion proporud in the application will not impair existing rights or he detrimental to the public welfare. Therefore, permit should issue as recommended above, subject to existing rights and indicateJ provisions. signed this,22_dsy of December, 19bo WILLIAM H. SMITH. Ceoluµlst Divlsivn of Water Resources -2- sun. U? Sac 'S it c an City i:^^inner City Hall itectun, Wa.hia;,:on 98055 �orim-bn. �- acatian Dear Jack:: ?.o. :9590 '.9c ::avo reviewed the finding: ei C ;actmert of Corscrvation dated 30 December 1966 with Mr. Smith va:o .;nCa the examiaation of the City's a?Aica- tion for tnertasod water right at 5?r.,; Mroo:; z.,d comment as followa. Thu res vonsibility of the City to.mcaaurc or Provide a record of slow near the con•,er of the north boundary of Gect:oa 6, Township Z2 Nurth, ran3c 5 East W. M. wan.discussed, and it was determined that there is no intention to call upon the City Of Renton in this retard. Ptc ha ro been un,-ble to verify all the water rights listed in the ropo: but understand t:at t::O permits relate to recant applications by the City carry!: at the recommendations made in our report of t,a water aystern. Primary right is computed at 7661.3 aero-feet baacd upon a future po?ulation of $7.Ci,o using UO-�allone per capita per day. This is the total amount of water which i::e City can appropriate from all coarcea. The supplemental rights are granted to per-..,t :he City to have flexibility in o."ratin; the water sources providing the volan•.e ca.rr.eted at any one source does not exceed the quantity Zranted at that source or to total the amount -f the Primary r13ht The disputed validity of Certificate No. •:63 and the fact that rn a=ual quantity was :,e' allocated at Springbrook mtroC,:ees a corn nlication which the Division of Water Reseurc,_ has attem?ted to clarify. We undorstand that if Certificate No. 463 is valid. :t wil. retain its original priorl.y in tl:v amount of 2.3 cis. M, in fact, the eertif:c.:t, is not valid, the new certifica.a will cetablish a priority date at of the date of Siling the recent application. In that way, 6. 98 cis would be a Primary right and 2.3u cis a supplemental right to tho total amount of v.28 cis applied for. However, . Tanuary 1 .67 `,-'a:a -t- in vicar of t:c cxiatir )rta.-r" :i :. -- ... ..:. :. _: -fact, it a;:;gars to us that the S:)rinZbroo:c ri.hts c:culd Se -,xt r_:, . . -.__._.,... :hc ataadard :cquircrtcnu . .. n.clor ar.3 coraplyin;with the rulca of the Slate .Zoard of Y.calt:: ,._...;1. It is our rcaomme.:dation that the r .ort c: e:c rz'_r.:...on be acecited a46 thu -,gaireu c:icc.c far warded to the is r,..c•lr:;:_: of Coaa.rva.i on. A perrait to Gevulo> =cures will than ho isauod v:of:: .:turt start w., da a sti�ulatcd 12-rzani: :)cr:od. ':.'e will shortly el;cu:.a c;i::. yot:. cur recommendations re- garding thia 4evolo;.rrcnt work. If you have any questions on this letter ;)icasa call. Vury truly youra. CORNELL. HOWLANP, 11AYES & MERRYMELD Antony B. 3arnce ABB/cs cc: 1).:partment of Conservation Civi.ion of Water Resources Attn: Mr. William R. Smith t Crider Cha?tar CXLII. Se—i-, ._... o: :.� ,.. r:gi:s to use surface ! water in Was°- ;ton Stato wulu s4 !.. ., >::::,, a ..once at the intended porn: of c.ve. and ii:ir.� a tupy w::a :.:: Aud::or. The water right Springuro,., ay nave ,.der. i Chapter —' -ws of c 1'j 17, and s as the '.atur Co-,. _. - . Su::acc .. ..,,..,, tn. . suo;ect to cssar.g rights. a:. wa:are :n fife J:azQ. ou::: .,..:f..ca ac:u g.ound, belong to t::e pubic and a right to appropriate for a �,.... ase be acquired as providec in t..e nct. Appraprra%ohs w,.,;. ...o. ... :irne shall be ' Cart :r. right. sco;ect to the rghts of r:p.,r:er. .•w::vrs tune 19:7, ' and to aay right, however acquired, ex:a:,ng a> X t..et date. .he date ^f receipt oy the Deparzn . ct oC a r,ew app,.o. app3cation establishes the pr:or:n: a. ^',.:.t .., water right. A 2r:cedure .s :aid ,'own for obtaining a perrn:. .,.;;r-en; a constructiori on a we;! or diversion works and a final water c, ::.:..a✓• .s :s-ued for the amo..:a of water which is put to beneficial use. .;,. . or:auate gives title to tau waters in question and becomes an app:.:.,:,:.,:., to :.tie property. ,..e writers have oven in coin manicaC on w.:n ;. Jepartment of Cunuervation and on 17 September 1965 rec.rved a .ette. from the Assistant • 1 S:per'isur aetting out the recorded.City of Renton Water Rights. These are fisted below and are compared with the present tapac:y of the Renton supply sources. t 1 Tne Assistant Supervisor suggests that tee r:i,: t i. Weil No. 7 be , r sued, because the well is known to b.• scone..,., t , .,nd that canceled q..,. I "i...aat:un No. wi61-A for We:: No. 3 be haven cons td..r..:.cn as it a known that the well was completed and placed ::i operation. 1 :. Department ' apparently :s not aware that Highlands Well No. 2 was :ba.tdohed. - 1 'i he writers recommend that the City a for I,r.f rma:.or. of ail , Pp•Y � water rights, matting application as necessary for incr--•abed rgi:ts where none presently exist. In the writer's experience the Department is he'!.piul and desirous of setting the records straight. :F.e:e may .,e drfirculty :n obia..r,icg increased rights at Sprrngb-nok ;uaging by curre.pundence which .e in the. City isles. . i Tna chapter has described the existing system iac.:.ucs and made jcertain recornMendatious which are summarized :n the fast chapter of this report. In Chapter LI which iollows the existing demaids on the water system will be discussed, i i i r D�e:azat:or. Ce::::.tate .•...�..... .-. 29e3 `e ..t-D C'M1 v 70G ado-D o.7 ,o gym .:u..A r. 5 v40-,i 3591- Wes.. A W.-.� :Ao. 5 -A {riec::do•e lVc•. :w. ..; _ .. .>�; rpm 37o9-A We;, 3770-A W,.. 5._ .,. n, Ju gpm 6:5-0 (aua::uunec) ::�v gem _- o35-f) _ " Liu of ..:eh:anda We:: 'No. 2 260 gpm _ (a:ur.donad) 424 of reiazs to tot,: s:•.,,,; axtracuon permuta3 in acra•faet• .y t:ovember 15, 1566 City of Renton Planning Co=issior City Hall - Cedar River Park Renton, washington Regarding: Fezone Request for P-66-106 - joi"4 6 YA.kLI::d S:?RKOViCH, et al Gentlemen: �e ere forwerdirg to you a copy or a ,p stowing a request :or change of toning which will be ecnsidercd by the Planning Com- mission in public hearing on Nove.nbor 22, 1966. :h ma� is map is being forwarded to you for your coaa a .d racom- vordation; however, in order that the Planning CoamissiWl may give tull consideration to all factors involved, it will be necessary that your written report be received no later than Friday, :7ovember 16, 1966. Yours wry truly, COWARD D. SAND Planning Director C S:t.g Attactv.ant cc: City of Benton Water Dept. i r A 1 i. —sr sa peitio o,per or petty tlescriba:: tn, a, a ega re;.:renu t. ha:a ..eer, asd; and WHEREAS the King County P:annirg Department ha-, ira-smitted to the Board ' County Comnissioners, King County, w,3shirgn>a, a copy cf the King County Planning Agency's findings and act on recom�erdirg the grant-_ g of this unclassified use permit; NPd, THM ME, BE IT r.ESOLVED that the Cc w.ard of County onissioners does hereby adopt the firdirgr and recm+nendation of th-- :lanninc, Ag_ncy as its own' and does hereby gr..it an unclassified ue] P=^it as ^hero horcon aid legally doscribed heroin, Mich lies within tlo pL—,Z(s) of the Zoning Ma.. doscribod as Ara Maps) 32 -------------------- ' I � Cr. � z V f� _ .:ovw:).r 17, 1;�Z r UVard 'I. Land 11ML2 L-1 octor zinc County 7"TAM, noparl,nt L02 L rinC County court r.oaso Soattlo, eaahinCCon 93104 Ras Letter dated ::ov. .5, 1914, on Cascr.o Regwst T_ .y for P.6L-104 Tolu. u larlira 'trr:iOvich, at al Dear .'.ir, The City of +;onto. is quite coraor• d in si zt Imppcna to the adjacent preperty to our La hd Collection ,trea. 7be provrty in question lies with'.n a :�tr, VM frarta3 under City o. 1conton 'n-;inane 141557 «cl=od yo: Lll find a co?y of said Ordinance and a tIap ahovin;; thi boundary P tho voter shod. Tho City of Renton's roo=�,ndattca is that the :ounty Conte. aionora dory the applicattan for an unc asoifie�l use %,,nit at this time. So= of the reasons for this roquost are ss f01 MMS 1. Curnartly the City is 4pplyin7 for additional water ri,•Jlte fret the State of iluhLn;ton Conaorvation w;,artrant in this area. 7hs last aiootin_ was la,ld on Tuocday, Nov. 15, 19'6. 2. }Iith the roL�radLy; of V, P:o:irmy adjacent to tha colloe- tion aroa, thorn coul,l yo I,e:oibilitioa of a roiuctlen of water yield. The yield has already bum r,:,ucad Ibis year vtan the Btatc 711107 Frowsy cut into tin vator boaris% strata. 3, Tin City Iwo not coon a L;ra'inc plan if any eatats. 4. are possibilities of contaoination of the :ritor Fu-lly with the dicturbanou of the soils in the our- roundioB area 5. Tho City would also 1:_z 1_.:•.: what tho ultirate uae of tdn aroa niZ!,t lw, ,: adiry; is finithad with re,,ards to aortic , If t::aro aro ary pleaso fool 'rao to contact us. t,lco, if t:e rt t of Cor. arvatim and De,ort.•wnt of Ashorie: arc asro of t.h'a application it is suCrasted Choy be lttfo d. Sinoonly yaw:a, M. .4 BOnald Olsen water EOQimar }.JinC &"wlosureet cot Mr. Darcy Barnee AN 09LANCS ,>' . . - .. ..c.::: '::ASPINGTON, D::SICNATING A . . - _ TO IT'3 WAT"'I HESERVO':' ..: ..- .. .....-51CT10N ,.� CITY ' .. :. . . . :.. ... ;R SUPPLY 9r,nY. POLL9Tic:.. TO BE A NUISANCE; Or'?iSSSS A0.'.i: 9 SIT- PLY; AND P.G-L-t: :,:;.,;,_`- .-,).•. ':S: l':JLATI08 ... h[W. BE IT ORDAIN= BY Th'V MAYOR AND CITY COLT7CIL OF 'TB:: J1TY OF RENTON: Sr.4i1CA - For tho purpose of protecting, t::a water furnished to the inhabitants oe the City of Renton. and others from pollutlon, and for tho proservation and protection of the purity of the City's water Supply, acting pursuant to Chapter M of Laws or 1907 and R.C.W. 35.68.010 to 35.39.090 inclusive, the City of Renton hereby declares ,i,urisdiction over the real property hereinbolow described, "lid ceclnrea said proparty subject to the restrictions imposed by aforosa:d laws and ter this. Ordinance, said property being Occupied by or adjacent and draining to the works, reservoirs, systems, branchos, pipes, springs, creeks, tributaries and streams above tr,d below ground, from wnlch or by means of w:.lch the City of Renton obtains, aecum."lates, stores and transports water furnished to the inhabitants of the City ar.0 adjacent area, sup- plied with water through the municipal wt:ter system of the Cl, , ; Said property being described as follows, to-wit: Be7,inring at the Intersection of the east line or 'gLh Avenue South and tho north lino of Township 22 North, Range 5 east Y. e. ; thence east alon4z tic nnt•th ,Ins of said Township 22 SOrth to tt,e west line of 104th Avenue -1ZthoaaL produced north; throw south alonr the weal line of lU1:Q, Avenue Soutnoust produced north to ..Lo I,orth line of SOut lust 200th Str,>nt; thence west alone; thn norW, line of souahU45t :'OOWt Strout to ,.ho oast line or 90-h Avenue South; cnonno nortnerly alo;L W:z oast lino of 96th Avenue fiooLt, to the [:nrth llna of Township 22 North, being the point of beginning; all situated in Township 22 North, Range 5 East in King County, Washington. ;I; Too ostablishmen. or maintenance cf any slaughter pens, stock feeding yards, hog puns, or the deposit or maintenance or or occupation, uvon thn pr, .orc 4e3Cr4bed. or thn creating or allowing of any ci mdltion urc:. . or suffiai•:ntly near said property to cause tho afc:•• c.-.: .,._,. r sup;"y to to ,.olluted or the purity of as:.d was >r cr a:.;. o he ,: endanered, fi is hereby prohibited and dac_r::•. :: :.e un':.wfu:, further declared to be and constitute a nuisance. a k SF.% :2, 111 : Any S�orroz., firm or cor,,vr:,•.Soi. wm, ti.•:_: do, establish, mainteln, or craato any of ;h•,, ti.ir.•t or ccrdltions hereby prohibited, or shall dv wry o" tho :hint rnvoLy declared unlr.a°I , shall be deemed ^ullty of creating and meintsir.lnr a nuisr,nco, and a all, further be guilty of a misdemeanor; and any such porsem, firm or corporation nd/or maintaining she'. be subject to prosecution for crea /such nuirnnce and/or for committing such r,isdomeanor, and upon conviction ti:ursof rh:,:I bi punish- ed by a flno In nny sum up to Ono Hunarud Dollars ( V10.4w), or by im- prisonment in the C:ty Jail for any period up to Uilrty O0) days, or by both such fine and Imprisonment. SECiCs IV: This ordinance, in the defining of jurisdiction and restricted area Lorain, shall no: be deemed or construed to be in derogation or limitation of any jurisdiction, rostrictivns, prohibitions, rights, powers or areas subject thereto, otherwise existing under any provision of law. SECTION V: This Urdinsnee shall be is full force tnd effe:t from and utter its passage, approval, and publi PASSED by 'i'4E CI'r'Y COU.4.L this _ ,i •t, 19 G. 'Eaton C. F nr,Lir ay�lsrx AP100VBD BY ::� Nlyl n th' dny of Au- at, 1956. p vod ns •n ^ore J c r<, axtor ?a;or raga .•••. tJG'»aie5 UGring Inc. 14 Sd J.C. Zlcilevue. W shineh a 90u04 De..r Sir: Au per our discussiou at :;:::tuu we are requcsttn,, a flan quote for th•_ Hunng operatiot: ..t pxin_Lruo.e. Thy job will cons/st initially of boric. hole approximotuly 100 fuet late.ally Lr.to the siSe of cite ;:avel ban.. at a 20 downward inclination from the horizontal. The exact lensth and number of addition43 holes will be determined upon the results of the first hole. Plcase submit prices for the starts in:la,;cj n: the attached Proposal which ocrmits payment for move-in, move-out, and e:..h lineal foot bored. T:.e City has the right to terminate the Lorin; as conditions dictate, but L 1:2 wm payments will be made for move-in and move-out. The casin& shall be 14-inch outside diameter, 0. 375 wall thickness and m"t the requirement- of AST`S Spccift:atlon A53-63T and shall be po. fw..ted except for the last l0 feet of . ,y hole. The periorations shaU be lcuve. typo punched from tha insi"e. ,.pproximately 14-2-inch rows per foot an s approved by the Engineer. Rc would like to proceed as soon ae possible with the borioi,. Please fill out the attacbcd proposal and return tuo copios t„ us so that we may mane ^ur recommendation to the City Engineer. W-422 SPRINGBROOK SPRINGS UPGRADING PROJECT WTR-9 2 #5 FeasiLility Study (Additional Water Development) • • ..... UUn�dtCC 20 April 1967 if you uzve aay quesc:ons, CORNELL, 411c:x1 E. Hanlilu,a b1EH:ccz Encl: Proposal Form (3) cc: :ack Wilson iwyEncl) PROPOSAL TO: City Engineer City of Renton Sprlr.;bn.ux Water Source City Hall Renton Renton, Washington 98055 The bidder agrees to furnish, bore, and install the casing as de. scribed :n CHZM letter dated f2 April I9c7, for the foaowing amounts: 1. Move-in for the lump sum price of $ tH1_O[1 Dollars & Cents 5 100.00 1. Furni, i, bore and install 1i" casing a.) for.the first 30 feet ` '7 07 Dollars & Cents S_ '7-00 per linear too[ .ti ) for next 30 feet $ 26.0O Dollars & Cents $ �'� •0'0 per linear foot c. j for next 30 feet $ 25.00 Dollars & Cents $ 24.,,3 per linear loot i-- d. ) for next 30 feet • _ye 24.00 Dollars & Cents $ 24.00 per linear foot 3. Move to new hole location for tr.c lump sun. price of ?S_•'1�l Dullars Gents § 25.00 4. Move-out 8t Cleanup for the lump sum price of a' 100.00 ^oliars & Cents $ 100.00 The name of the Bidder who is submitting this Proposa. is iiorth'.;est iorin, CO. —doing business Street a.el 1. C1 :1+w:�t�Hoyt which is the address to which City Stale all communications concerning this proposal shall be sent. In witness hereto the undersigned has set his hand this day April 25 1967. Signature of Bidder 0:mer Title This rrice based on ustr,m, sawed perforations -n 14"z 3/3" trail pipe _W!", 42 3' s 3/16n Sawed slots per foot. 'Alas louvred pipe I locatei was thin :gall. Proposal .2- 56563.,3 23 .Acril 1'-'67 "r. Jack 1:11son City 1'ncineor City of Renton City Val) Renton, Washington 45055 $pyaohrook Wa3ir 3ourco Lear lack: ' '+'c have rvvioved the proposal aubroitted by Northwest nortno Co. 'or boring a hnritor.tal cell at Sprinzbrook, and fln�! the cote of a 100-foot hole is 7h1+ price is a litho higher tLnr acttctnnted due to the increase in Casino, thitk- noss fro- 1/6-inch to 3/8-inch for ecrronion coni!derettons. 11m,ever, the price seem rc:icanable rr.d we reccz rd r•lot "nrthwent torine pro. be awarded the lob. It would he beneiiclal to all partite rnncerrwi to proceed with t:,c work as soon as possible, since Springbrook supply will have to shut down durinli the operation, and to take advantage of low system demand because of the rain weather. If yea have no obleetioas to the proposal, we will contact Northwest Loring (early in the week of `Iay lot) and instruct them to proceed. Co-ordination of the work between t`e City, northwest norina Co.. ^nd C112v !s •va:acial to the operation of the SprlrMbroolc supply duo to the nat,irc of the hot' —tal ex loration well, 1?e wilt keep close supervision durinp the nrarress of ,as work to deL*rain* whet *time are necessary for the best development of Sprincbrook. If you have any questions on the above, we will be happy to discuss them with you. Very truly yours, COI NUL. HO'JLA1,D. MYF.S i MERRYFIELA Michael E. lianilton MEH/ce • s-�ss�.e � VaY 1967 Forthwt<t eorinq Co, /S20 - 141rd Avenue S.L Bellevue, Gashington 980" S crinrhr0ok %veloencnt - hrerton near `h. Consalax: The City of lrenten hex accented your Propescl for boring a horizontal well at Springbrook, This letter authorizes you to proceed i-�edlataly with the work. Payeert will bt mac upon coy?lotion of the work Mood upon quantitic• agreed upon betueen yourself and the Sngtneer. Re would Ilk* to know a few days in advance of when you will nova onto the %ite $o that the City Can eake the nc"."ary prepiratlona. 7f you haw any questions, plsaea contact us. Very truly yours, CO8 m, IU7wwn' 8AY[S i M°. "r7no Michael S. oanilton cc: City of Renton, t r�.sf:l.s on e!•. ton At to `rr. ronzAlea --- - - ___ Centlemn: As ner our to Icn:,on u/acu•�-i;, cam.'.: .,.• rn-inset, City "nll, "en tor., •'aahtnpton, v! �.:,: .`.. ^i or:. . crlbed 1 : to the enclose' n•opoanl form. 1 h r> ea*.inn in iteu of 14-tnO ,'iareter cssin t`te 1 + in '.:ties cur !ett^r to you of 20 April 19A: shall lipply. If you have env euestions, please call. "ore truly vours, catsatt, aro'ta�z�, �.Ayrs ,. ve^•tvr•rr�a Anton 7, 'arnes , AES/ca freloaurea: Proposal eotm (3) ee• Mr. tack !filson f } • • PROPOSAL i i TO: City Engineer Cite of Renton City Hall Spri- rook Water Source Renton, 'Washington 98055 Renton -he Bidder agrees to furnish, hone, and install the caning as des Gibed in + CH2M letter dated 25 May 1967, for the following amounts: 1. Move .n for the lump sum price of ._ "1 •�" Dollars and Cents $ 100.00 2. Furnish. bore and install 24 casin a. For the first 30 feet w "•w Dollars and Cents s 1260.00 per Ungar a foot b. For next 30 fast 041.00 'lots and Cents $ 1230.00 per linear foot c. For next 30 feet 3LU.00 and Cents S 1.200.00 per linear oot d. For next 30 feet 4O.U0 Collars and Cents S 1200.00 per linear foo: e 3. Rove to new hole location for the lump sun price of Z25.00 ^ollare and Cents S 25.Q0 d. Hove Out and Cleanup for the iu:p sus price of 4100.00 pollars and Cents S 100-.00 The casing shall be 24 inch uuts ide diameter, •377 inch e wail thickness, Beet the requirements of ASTM Specification A 53-63T, and be per- forated with -S rows of 7j 16 inch wide by 4 inch long •lots per foot except for the last lO feet of anv hole. The name o the Bidder who is submitting this Proposal is I:or' t:est iiorine „o, doing business at 15 J 1:.3rd ,,i t qF Street Bellevue. :.a SiinvLon which is the address to which all cosmuoi- City State cations concerning this Proposal shall be sent. In witness hereto the undersigned has set his hand this �1 day of av 1967. Signature of gi�8� [�/.i.i �..wit/ ✓ Title Proposal -2- j s4,L3.3 Jwso i967 Mr. h. P.. Len tz ics NortM+nst eortmi Coroany I520 - I43ru Avenue S. E. Bellevue, t:ashington 93104 Sprinrbrook Do eloo-ont - Ronton Dear Mr. Gonzales: the City of Renton has accepted your Proposal of 31 May 1967 for boring a 24" horizontal well at Snrlrc�rook. .`•is lrttor authorizes you to proeerd in- modlately with the work. Payment will :e nsde upon connletlon of the work based upon quantities anreod urn" between yourself and the Enoineer. We would like to knav a few, days in auvante of when you will "Ove onto the a` site so that the City can make the necessary nrenurations. If you have any questions, please contact us. 'dory truly yours. CORNELL, 1!C14AND, HAYES t NERRYFIELD .11choei E. Hamilton NEH/cs cc: City of Renton BORING CO. SH 61576 GSLq :-": inccr :•e: .c:i, ... s:.i:i,,tan o.:p55 Love Sl, 100.no ... ..... Well OUL, ,.Vc a.:i.0 .......•• .. ... . .. . . .. ... .r •..••.•• .. ......... ...... � 17 .q1 L=o 7...• • ... ••: • • . . . ... . ................... . . . . .... .. . . .. _LlrS bar: . 4'urflir;. =vrC• S:'aL:.11. •�e,�•��� .•.•_. ...•. le J0 feot R :+ J.cq. .................................. ....... ....... ... wr fr.. . .. . . Bor.• i0 dt.1,;r.i ^:r fc...... Lo id :F r N more time......... iJywO $ 17;S.4J Pirr.t bon................. .. .. . G 1!.:.i•w 7Tir. .:•ar...... ..... ........ . .:. ,,i'� ;•Va'• ;C:Lti d.1V1...... .. . .... 4'o4rtc: 'WrO........... ..... . . ... + Ue:uc a .• 500.00 for you C arPo ating 1604 nipr,.. f r i%4Fi.\Y L.► aaloe talc... ......... t Potell due....... RCES 0 c a D E S' M O IN E S D R IF T P LAI N = y1 .L D a� F Ovl nQ" DUWAMISH VALLEY ra a. Q ao _ PROFILE 8-8 APPROX 'LOCATION PROPOSED WELL DES M O I N E S DRIFT PLAIN DU WAMI$H VALLEY = '� 3 C l 3 3 Q. Qm Q.. 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JAlrmx�a Jrklt'd Prx•IYr»AuN nW!x nnrr+ ENDING F F!L FILE TITLE Stuoly. Qdji +;(Oroa (. WateA N- ug