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HomeMy WebLinkAboutWTR2700600(2) W-600 SOUTH TALBOT HILL PUMP STATION WTR-10 1 #2 Gener,l Information k1rp--o to PUMP slat/oXvs BEGINNING OF FILE FILE TITLE STaLbo f/i%CL laccm/o sfQ�,o�v � o`t Gem flQ o 4, � � fo . H2M 0 • engineers planners economists scientists April 3, 1980 513631.A0 City of Renton Public Works Department Municipal Building 200 Mill Avenue South Renton, Washington 98055 Attention: Mr Ron Olsen O' . .ities Engineer Dear Ron: Subject: Proposed South Talbot Hill Booster Pump Station Transmitted herew:.th is our report on the design criteria for the subject pump station, We are ready to proceed with detailed design of the jump station. A separate report will be prepared addressing the future reservoir for the 350 tone. We would be happy to discuss in greater detail any part of the report, if you have questions. Sincerely, James L. Butt / �- �ph R. Miller lch Enclosure: Report (6) tank owa ISO[ n�:h,{,enur S f arlk�w N�Anptm 9tpM 2M 4,VAX, PROPOSED SOUTH TALBBOT HILL BOOSTER PUMP STATION PURPOSE The purpose of this predesign study and repo is to estab- lish criteria for the proposed South Talbot ill Booster Pump Station. The 350-foot pressure zone was studied to define its limits, and domestic and fire flow demands were determined. These demands establish the number and capacity of domestic and fire pumps at the proposed pump station. 350-FOOT PRESSURE ZONE IN THE TALBOT HILL AREA The 350-foot pressure zone in the Talbot Hill area is Shown in Figure 1. This zone was divided into a northern and a southern area in order to define the limits of the existing Talbot Hill Booster Pump Station which distributes water to the northern rea, and the proposed Souch Talbot Hill Booster Pump Station, which will distribute water to the southern area. The area of the northern part of the 350-foot zone is approxi- mately 87 acres. The area for the southern part is approxi- mately 350 acres, of which the Valley General Hospital occu- pies approximately 30 acres. Since the hospital system de- mands were cciputed separately from the domestic demands, its area was subtracted from the total southern area for an adjusted southern area of 320 acres. It was determined by field observations that approximately 75 percent of the northern area in the 350-foot pressure zone is presently developed while approximately 20 percent of the southern area is developed. 350-FOOT PRESSURE ZONE SYSTEM DEMANDS Reference to Appendixes 4 and 5 of CH2M HILL's 1965 report on the Renton water system gives the basis for computing system demands. In a developing area such as Talbot Hill, the maximum day demand can be computed either on an area or population basis. An area basis is used here. The criterion for the area basis is a rate of 100 gallons per day per 1,000 square feet of total area, with a reduction of 30 percent for paved areas. This is equivalent to 2.1 gallons per minute per acre. Using this factor in conjunction with previously stated acreages, the present and ultimate system demands were cal- culated and are shown in Table 1. The three system demands 3 't � •�%IST1NCq TAL.BfJT MILL i ' � 1 � �� °.� '� �'1©• �r 1� � ',� ': � P{4MP STP,TION •• T �•� e, '�'r�` •.; a t9T�_,�;'^'�---' +---_>�+�•�' - ._� L gM . —. Y_ ^ '. � >� `� ,' ,'"" NORTMER�I AREA { .•+ �,. - - Otl' C1'E ' fit, a, LIMITS OF 550 FOOT 2"PICE38u" CONE29 SOutHERN APEA +` �— PPOPOSPO SOuTM TAI"E0T g; '� ,� •t i ,�... .0iillb , H'{"�.PNMP STATION • a 35 1 i + d. If � FIGURE i .. 350-FOOT PRE5514RE LONE IN TAL80T "ILL ALMA E ' JRMM ..: a . a �". APRIL 1930 1ILL are as defined in the table. Maximum hourly demand was cal- culated as twice the maximum daily demand, Thr demands for the southern area include an estimated maximum day demand of 120 gallons per minute (gpm) to the Valley General Hospital. This hospital flow was estimated based on the past 12 months' meter readings adjusted upwards by a factor of 1.5 for future hospital expansion and 1.5 for the ratio of maximum month to the maximum day. Table 1 350-FOOT PRESSURE ZONE SYSTEM DEMANDS FOR THE TALBOT HILL AREA System Remand (gs,,N Time Period Area Location Present Design- Ultimate- Maximum day North 140 •• 180 Maximum hour North 280 - 376 Maximum day South 250 390 790 Maximum hour South 510 180 1,580 a Present system demand for approximately 75 percent develop- men` in the northern area and approximately 20 percent b development in the r�uthern area. Design system demand for approximately 40 percent development. cUltimate system demand for 100 percent development. The southern service area would consist of mostly single-family residences, the Valley General Hospital, minor commercial/ office use, and minor apartment development. 35( -FOOT PRESSURE ZONE DOMESTIC PUMPS Northern Area The existing Talbot Hill BoosLer Pump Station must meet present maximum hour demands. The existing 500-gpm variable-speed pump is adequate for this, and the pump can also provide for the ultimate maximum hour. Thus, this pump is adequate for the present and will be able to help meet present demands in the southern area. Southern Area The proposed South Talbot Hill Booster Pump Station must meet present maximum hour demands and design maximum hour demar.dr. Ultimate maximum day demands must be met after the future reservoir is constructed. Two constant-speed pumps are recommended for initial installa- tion with provision for a thir° it a future date. In order to meet the design maximum hou: iemand, the recommended pump capacities for initial installation are 250 gpm and 600 gpm, for a total of r?proximately 800 gpm if both are running. The recommended pump capacities would also meet the ultimate maximum day demand. The need for, and capacity of, the future Pump will depend on when the future reservoir is constructed. The constant-speed pumps will require pressure-relief valves to prevent the pumps from over-pressurizing the system at low flows. They will alsc require control valves to prevent surges in the system when the pumps are started. Installation of a variable-speed pimp at the proposed South Talbot Hill Pump Station is not recommended because of antici- pated control problems due to adverse interaction with the variable-speed pump at the existing Talbot Hill Pump Station. No standby power is recommended for these pumps because water is available from the northern area of the 350-foot pressure zone and from the adjacent :96-foot pressure zone. Addition- ally, the future reservoir will provide water during major breakdowns. This pump selection will give flexibility and standby in the event of mechanical failure and will meet the range of system demands experienced from the winter low to the summer high for the defined design period. 350_FOOT PRESSURE ZONE FIRE PUMPS Northern Area Fire flows will be supplied by the existing pump at the Talbot Hill Booste, Pump Station and two existing pressure-reducing valve stations. Southern Area Fire flows will be supplied by the installation of fire pumps at the proposed South Talbot Hill Pump Station. An estimated maximum flow of 5,000 gpm will be required at the Valley General Hospital following construction of the currently planned expansion. Two pumps are recommended to provide fire flow of 2,700 gpm each, in addition to the maximum day domestic demand. No standby power is recommended for the fire pumps. In the event of power failure at the proposed pump station, lesser fire flows can be obtained from the northern area of the 350-foot pressure zone, the proposed pressure-reducing valve station connection with Water District No. 58, and an inter- tie to the adjacent. 196-foot pressure zone. Each fire pump will require a control valve to prevent surges in the system when the pumps are started. Fire flows in the future would be provided by the future reservoir. INSTRUMENTATION AND CONTROL The domestic pumps will supply water to the 350-foot pressure zone in response to pressure. The pumps will be turned off in response to low flow. Instrumentation and control of the pump station will be designed in conformity with CH2M HILL's 1979 report entitled 'Supervisory Control and Telemetry System" to the city. The following basic control and monitoring features are recommended for the domestic pumps: 1. Manual selector for each pump to function as a lead, first lag, or second lag pump. 2. Manual override of the automatic pressure/flow control system for starting and stopping each pump (pith red warning light in manual mode) . 3. An indicating "ON" light and elapsed time meter; elapsed time in hours with manual reset of Teter. 1. Pump station failure alarmed centrally and/or at the police station. 5. Record and totalize flow from the pump station. The fire pumps will supply water to the 350-foot pressure zone in response to pressure. They will be turned off manually. Control and monitoring features will be similar to those provided for the domestic pumps. s ' CAG 015-90 AGREE !EN'r TO FURNISH ENGINSERING SEKVICES TO THE CITY OF RENTON, WASHINGTON FOR SOUTH TALROT HILL AREA WATER SYSTE"t IMPROVEMENTS For the consideration hereinafter set forth, the firm of CH2M HILL Northwest, Inc., a professional engineering corp- oration, hereinafter referred to as toe ENGINEER, agrees to provide engineering services to the amity of Renton, 290 Mill Avenue S. Renton, Washington 98055, hereinafter referred to as the OWNER, for predesign planning, final design and prepara- tion of plans and specifications, services diriny construction, On-cite inspection, and other services as described hereinafter, fir a PROJECT generally d-.s•:rlb:i as Sruth Talbot Hill Area i:atur Syst,en Im2rovelcnts, ARTICLE 1. The ap.zcifin services which thr ENGIN�-CH agrees t'� firnis4 arQ as fallaws% A. PREDESIGN S4RVt.' S In order to set criteria for the bnosb±r pu*1> st.ltio-. the expandad 350-foot pressure zone will br studied to define its limits and future 9unestic and fire flow demands. ?'it, number and capacity of pu,nps for the booster Pump station will be determined from the results of the study. The study will be documented in a letter-report setting basic statinn criteria, including telemetry and supervisory control facilities. A separate letter-report will recom,aend suitable sites for a fuwr,a reservoir of ceparity to be determined in the above study. Suitability will b+, base.l on systei su)ply ant demand characteristics. Tho extent of sjili investigation, surveying, and site acquisition services will be as directed by the city and provided under O':3ER SER`;IC�:S. s. FINAL DESIGN SERVICES Facilities to be designed include, Booster Pum station 12_------- o A pump station at a site to be acquired in the vicinity of the Valley General Hospital boosting water frown the industrial area 196-foot pressure zone to the 350-toot zone. I P Pcl_Ines o Approx.mately 7,700 lineal feet of 12-inch ductile iron waterline from the proposed pump station to South 43rd Street and futu-e roads; 99th Avenue South and South 177th Street; and Talbot Road South northward to South 27th Place. o Approximately 6,650 lineal feet of 16-inch ductile iron waterline in Talbot Road South from the 24-inch main at South 19th Street to South 177th Street. This main is to replace the existing old 20-inch steel main in Talbot Road South. In the vicinity of Talbot Reser- voir the new main shall be laid deep to allow full nse of the reservoir capacity. o Approximately 1 ,000 lineal faet of 9-im:h sewerline and 12-inch waterline in Talbot Road South. These pipelines parallel the 16-inch waterline described above in the vicinity of the Talbot Reservoir. o the drawings for the pipelines rn Talbot Road will show continuous stationing along Talbot Road from the reservoir to a location approxi- mately 900 feet south of South 43rd Street. Specific design services to be provided are: 1. Prepare construction plans, specifications, ani estimates of cost, as customarily made available for construction of this type of project based on the approved predesign report. 2. Process documents with all appropriate regulatory agencies. 3. Meet with representatives of the OWNER and Department Of Social and Health Services when requested and necessary for consultation or conferences in regard to design of the PROJECT. 4, Provide general information in regard to the PRJJECT and consult with the OWNER for the purpose of the OWNEk's preparation of necessary agreements, such as those for rights-of-way, easements, and ]and purchase, 5, Furnish six copies of plans, specifications, and documents for obtaining project approval . 2 6. Coordinate all test borings, aubsurface explora- tion, or other investigations which may be required for design of the PROJECT. C. SERVICES DURING CONSTRUCTION 1. Assist the OWNER in receiving and tabulating con- struction and/or materials proposals; report the results to the 01474ER; and assist in awarding the contractlsl for construction and/or materials. 2. Meet with representatives of the fA•IS3R when re- quested and necessary for consultation or coofer- ences in retard to construction of the PRaj:;: 3. Provide interpretations of the plans and specifications. C. Make periodic visits to the sitar of the PR?JEC; t., observe the progress and quality of the worst and to determine if the work is proceeding in acc.ocian:v with the intent of the Contract Documonts. S. Coordinate the work of laboratories i thr: ins ). tion and test of uaterials used in the coostruotro.+; receive and evaluate all reports by such labyra- taries or bureaus. 6. Review shop drawings, dia7ra,ns, illustrations, catalog data, schedules and samples, tha results of tests and inspections, and other data which the contractor is requirel to submit for conformance with the design cone+.pt of the PROJECT and compli- ance with *he information given in the Cuatract Documents. 7. Supervise the work of the on-site inspection per- sonnel an,i other field personnel. S. Submit monthly progress payment recommendations, pr +pare and submit contract change orders. 9. MakQ a final inspection of the construction jointly with representatives of the OWVCR and sub-nit final report upon which final settlement and termination of the construction contractlsl can be based. 10. Make such visits to the PROJECT site as may be necessary to assist the OWNER in taking over o;+-ra- tion of the PROJECT. This shall be done to deter- mine if the equipment and facilities are o.nesting 3 properly, to familiarise the 7WNER with the operat- ing and functioning of the PROJECT, and to review performance of items under the contractor's guarantee. Such visits as are made prior to the ENGINEER's recommendations for final payment to the construction contractor shall be regarded as a part of SERVICES DURING CONSTRUCTION; any visits nade after this time shall be paid for as OTHER SERVICES. D. ON-SITE INSPECTION SERVICES 1. Furnish the on-site inspection personnel to act as ageat(sl of the OWNER in his relations with the construction contractors) to provide on-the-job, day-to-day inspection of the work as dafined Jn Article it to prepare monthly progress reports nn the work; to determine the am-•ants of payments Rae the contractor(s) as set forth in the constru.•cion contract(s); and to keep all records, maps, and plans necessary for the preparation of drawials showing the project as finally eonstri7tel. E. OTHCA SERVICES 1. eiddinq Docmnents. Prepare sufficient alditionnl copies o approved Mans, specifications, and bil- ding documents as are necessary for bidding and Subsequent construction and, if requeste9 by the O.MER, provide document nailing and pre-bit services. 2. Surveyi�ngg. Furnish survey, ma?ping, and/or phuto- grammetric personnel and equipment requires to obtain field information necessary t.) prepare satis- factory plans and specifications. A full field survey of Talbot Road South from South 19ti Street to Carr Riad will be provid:d. This survey shall provide plans to the scale of 1 inch to 4n feet and profile to vertical Seale. of 1 inch to 10 feet. In aldition to beini the basis for pipeline contract drawings, the plans shall b� suitable for future road construction drawings. kerial photography of the pipeline routes will be conducted from which the pipeline drawings will be prepare] and checked by the field survey data. I. La: al Descrytions. Furnish legal descriptions of all _4iii&vents,r1yhts-of-way, and property requirel for the PROJECT an,l provide personnel to assist the. OWNER or those dosignatel by the OWNER to obtain easements, rig:its-of-way, and property. . . ., a an i. Operations and_Maintenance Manual. Furnish written operiting and ions and assemble a set of manufacturers' data and catalogs covering equipment installed in the PROJECT facilities. 5. Record Drawings. Submit to the OWNER, upon conple- t10n Of the work, two (2) s,•ts of record drawings, using Information supplied by the construction contractor(sl and the on-site inspection personn,il. 6. Miscellaneous. Provide miscellaneous consultin_; a3a -otter services, not stipulated elsewhere in this agreement, when regoeste.l by the OWNER. ARTICLE_?. As consideration for providing the servicea enimer'itel in Article 1, the OWNER shall pay the ENGINEER: 1. For PREDESIGN SERVICES, as enumerated in Article 1, the amount of the ENGINEER'a Salary Costs, as da!inen in Article 1, expended for the services, multiplied by a factor of 2.2, plus direct expensis in connec- tion therewith. i. For FINAL DESIGN SERVICES, as enumerated in Article 1, the lump sum of Sixty-six Thousand Eight Hundred Dollars ($66,R001 . 3. For SERVICES DURING CONSTRUCTION, as enumerated in Article 1, the amount of the FNGtREER's Salary Costs, as d:lined in Article 0, expended for the services, multiplied by a factor of 2.2, plus direct expenses in connection therewith 4. For ON-,SITE IN: 'CTION SERVICES, as enumerated in Article 1, the amount of the ENGINEER'• Salary Costs, as defined in Article ♦, expended for the services, multiplied by a factor of 2.0 plus direct expenses in connection therwith. Direct expenses shall include an allowance of Ten Dollars ($10) per workday to cover the in,,pertor's excess travel time and mileage required to gv to and from the project site, over and beyond nornal travel time and mileage to and ftom the inspector's residence and the ENGINF.ER's permanent office. S. For OTHER SERVICES, as enumerateA in Article 1, and for additional services not specifically pro- vided for hereunder, the amount of the ENGINEER'S Salary Costs, as defined in Article 4, expended for the services, multiplied by a factor of 2.2. plus direct expenses in connection therewith. 5 ARTICLE 3. Payner.ta to the ENGIBEek as prescribed in Article 2 is to be made as follows: I. For PREDESIGN SERVICES, tthin 30 days after date of billing, the amount dae, as prescribed in Article 2, for such services rendered during the month. 2. For FINAL DESIGN SERVICES, within 30 days after date of billing, the ENGINEER's estimate of the value of work acconolished during the month for that portion of the PROJECT for which FINAL UESI�: SERVICES havc been furnished, 3. For SERVICES DURING CONSTRUC^ION, within 33 days after date of billing, the amount due, as prescribed in Articlo 2 for ouch services rendered daring the mvnt4. 1. For ON-SITE 14SPE�TiON SERVICES, within 30 14ys after date of billing, the amount due, as pre L:ribed in Article 2, fir sacy services rendcreJ durin3 tho months, S. ear OTHER SERVICES, within 31 days after date of billing, the amount duo, as pre%--ribed in Articl- 2, for such services rendere3 daring the month. AkTIgLEA. It is further mutually %greed by the partlet hereto• 1. That, the ENGINEER will not begin work on any of the services listed in ARTICLE 1 until the 0WjER directs him in writing to proceed, the Public Works Director to havo authority to givo such approval. 2. That, the OWNER shall make available to the ENGINEER all technical data in the OW?4ER's Possession, includ- ing maps, surveys, borings, and other infvrmition reJuired by the ENGINEER and relating to his work. 3. That, the estimates of cast for the PROJECT provided for herein are to be prep4re3 by the ENGINEER through exercise of his experience and Judgment in applying presently available cast data, but it is recognize] that the ENGINEER has no control over cost of labor and materials, or over competitive bidding procedures and market conditions, on that he cannot warrant that the project. construction costs will not vary from his cost estimates. 6 4. That, visits to the construction site and observa- tions made by the ENGINEER as part of SERVICES DURING CONSTRUCTION shall not relieve the construc- tion contractor(s) of his obligation to conduct comprehensive inspections of the work sufficient to insure conformance with the intent of the Con- tract Documents, and shall not relieve the construc- tion contractor(s) of his full responsibility for all construction means, methods, techniques, sequences, and procedures necessary for coordinat- ing and completing all portions of the work under the construction contract(s) and for all safety precautions incidental thereto. Such visits by the ENGINEER are not to be construed as part of the inspection duties of the on-site inspection personnel defined in other parts of this Agreement. 5. That, the on-site inspection personnel will make reasonable efforts to guard the OWNER against defects and deficiencies in work of the contractor(s) and to help determine if the provisions of the Contract Documents are being fulfilled. Their day-to-day inspection will not, however, cause the ENGINEER to be responsible for those duties and responsibil- ities which belong to the eonatiuction contractor(s) and which include, but are not limited to, full responsibility for the techniques and sequences of construction and the safety precautions incidental thereto, and for performing the construction work in accordance with the Contract Documents. 6. That, the ENGINEER's salary costs are defined as the amount of the wages or salaries of the ENGINEER'• employees working on the PROJECT, plus thirty percent (30%) of such wages or salaries to cover all taxes, payments, and premiums measured by or applicable to such wages or salaries, such as, but not limited to, worker's Compensation Insurance, Social Security, State and Federal unemployment nsucance, medical hospital insurance, salary continuation insurance, pension plan costs, and pro rat& allowances for vacation, sick leave, and holiday pay. That, the ENGINEER'S airect expenses are defined as the costs incurre,! on or dire.tly for the PROJECT, other than the Salary Costs (as defined hereinbefore) . Such direct expenses shall be computed on the basis of actual purchase price for items obtained from commercial sources and on the basis of usual com- mercial charges for items provided by the ENGINEER. Direct expenses shall include, but not be limited to, necessary transportation costs, including 7 mileage at the ENGINEER'S current rate per mile when the ENGINEER's own automobiles are used, meals and lodging, laboratory tests and analyses, computer services, magnetic card typewriter services, tele- phone, printing, binding, and multilith charges. When technical or professional services have been furnished by outside sources, as requested or approved by the OWNER, an additional five percent 15%) of the cost of these services shall be added for the ENGINEER's administrative and continuing PROJECT responsibilities. 9. That, when the OWNER directs that competitive bids be taken for constriction on alternate designs, where this involves the preparation of designs, plans, and specifications for alternate facilities, the compensation to the ENGINEER shah be the pay- ment specified in Article 2 for the FINAL DESIGN, plus an additional payment to be negotiate) at the time the OWNER directs that alternative designs, plans, and specifications ba prepared. 9. That, the OWNER shall pay for costs of personnel and equipment for test borings, Subsurface explora- tions, or other investigations reluirel fot the determination of foundation and geologic conditions, for field tests or equipment or facilities, and shall pay for require] bacteriological, chemical, mechanical, or other tests, except the ENGINEER ahall not order Such tests or investigations to be made without prior approval of the OWNER. 10. That, if payment of the amoui,ts due as prescribed in Article 2, or any portion thereof, is not made within the period specified in Article 3, interest on the unpaid balance thereof will accrue At the rate of twelve percent (12i1 per annum and become due and payable at the time sail overdue payments are made. I!. That, if any portion of the PROJECT covereJ by this Agreement and designed or specified by the ENGINEER shall be suspended, abated, abandoned or terminated, the OWNER shall pay the ENGINEER for the services renderel for s,1ch suspended, abateJ, abandoned or terminated work, the payment to be based insofar as possible on the amount■ established in this Agreement or, where the Agreement cannot be applied, the payment Shall be on the basis of the amounts for OTHER SERVICES, as prescribed in Article 2. 0 12. That, the OWNER shall pay for all costs of publish- ing advertisements for bids and for obtaining per- mits and licenses that may be required by local, state, or Federal authorities and shall secure the necessary land, easements, and rights-of-way. 13. That if tho engineering services covered in this Agreement have not been completed upon the expira- tion of an eighteen (1R) month period from the date of execution or date of establishing fees for applicable portions of this Agreement, the OWNER or ENGINEER may, at the option of either, on written notice, request a renegotiation of Article 2 (pro- viding for the compensation to oe paid the ENGINEER for services rendered) to allow for changes in the cost of services. Such new schedule of compensation is to apply only to work performed by the ENGINEER after delivery date of such written notice. 14. That, in the event of any action brought by either Party against the other to enforce any of the obli- gations hereunder or arising out of any dispute concerning the terms and conditions hereby createl, the losing party shall pay the prevailing party such reasonable amounts for fees, costs and expenses as may be set by the Court. 19. That, in Lhe event of any legal or other controversy requiring the services of the ENGINEER in providing exoert te :Imony in connection with the PROJECT, except suits or claims by third parties against the OWNER arising out of errors or omissions of the ENGINEER, the OWNER shall pay the ENGINEER for services rendered in regard to such legal or other controvery, including costs of preparation for the controversy, on the basis of charges for OTHER SERVICES, as prescribed in Article 2, in addition to other sum$ of money payable under this Agreement. 16. That, the OWNER or ENGINEER may terminate this Agreement by giving 30 days written notice to the other party. In such event, the OWNER shall forth- with pay the ENGINEER in full for all work previously authorized and performed prior to notice of termina- tion. If no notice of termination is given, rela- tionships and obligations created by this Agreement shall be terminated upon completion of all applicable requirements of this Agreement. 17. That, this Agreement 1s to be binding on the heirs, successors, and assigns of the parties hereto and is not to be assigned by either party without first obtaining the written consent of the other. 9 18, The engineering services covered in this Agree- went will be completed within eighteen 1181 months from the date of execution. Additional time will be granted for delays beyond the control of the ENGINEER. The ENGINEER will notify the OWNER at the time said delays occur, 19. That, the ENGINEER will indemnify and hold the OWNER, his officers, agents, and employees harm- less from and against all loss, liability, or claims thereof, caused by the sole negligence of the ENGINEER, his agents or employees, in the performance of this Agreement. ARTICLE 5. IN WITNESS WHEREOF, the parties hereto each herewith subscribe the same in triplicate. For City of Renton ' Attest wfn)i1, z A� 8}' '�ps�t_�{._l�r�yel�_- Title City clerk Title Mayor Dated this 3rd day of March 19 80_. For CH2M HILL NORTHWEST, INC. Title .WILT et Dated this day of 10 WR ;-* 1OEN panip ENDING QF FIL FILE�� 600 STLb Puntp Slaiiov # o? GeroeazC. zvflo .