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Home My WebLink About2019-0805 Study Session MIN CITY OF ASHLAND CITY COUNCIL STUDY SESSION DRAFT MINUTES Monday,August 5,2019 Council Chambers, 1175 E. Main Street Mayor Stromberg called the Study Session to order at 5:32 PM. Councilors' Slattery,Graham,Jensen,Akins and Seffinger were present. Councilor Rosenthal was absent. Public Forum Dr. Carol Voisin—Ashland—She spoke regarding the water master plan. She spoke that the cost has gone up and there will probably be an increase in water rates in the future. She explained that in 2012 it was told that by increasing rates by 10% it would give us what we need for water infrastructure. She spoke that another review is needed by Council. She questioned what will this do to our water rates. She spoke that it is important to assure the citizens that oversight and accountability are in place. She explained that there is no need to rush this and the importance of being transparent about cost. William Shanor—Ashland—Spoke that he and his wife did a site visit. He spoke regarding E. Coli and the importance of the more you learn the simpler it becomes. He spoke that this is not as complicated as those appear to make it. I. Update on Preliminary Design of a 7.5 Million Gallons a Day Water Treatment Plant City Administrator Kelly Madding gave a background on the water treatment plant. Seffinger arrived at 5:47 PM. Deputy Public Works Director Scott Fleury gave a Staff report. Akins questioned what will happen to the current water plant. Fleury explained that options would be brought back to Council regarding the current plant. Seffinger questioned if trails can be placed in that area. Fleury spoke that this has not been discussed yet. Council questioned what will be done for the safety of the new area. Fleury answered that a design proposes a fence around the area and video cameras. Council discussed the increase in demand. HDR representative Pierre Kwan presented Council with a PowerPoint Presentation (see attached). Items discussed were: • Design of 7.5 million gallons a day water treatment plant. • Background. • What have been doing. • Alternatives reviewed. • 4 Project phases: o Alternatives Analysis and Preliminary. o Final engineering. o Bidding assistance. o Construction administration. • Building upon 2016-2018 work. o New plant at the Granite Site. o Existing plant will be decommissioned. o 7.5 MGD expandable to 10.0 MGD in the future. o Incorporate clearwell for addition future storage. o Not membrane filtration process. o Need to address taste and odor compounds, algae and algal toxins. Must address. • Issues facing now. o Defining the treatment process. o Obtaining Oregon health authority acceptance. o How to fit everything onto the challenging Granite site,planning what to do with the existing plant once new plant is operational. o Determining construction and lifecycle costs. o Identifying permitting requirements. o How to prepare for the unknown. • What have we been doing? o Phase 1 A—Alternatives evaluation. o Phase 1B Preliminary Design. o Meet goals and stay in budget. • Treatment alternatives o Conducted geotechnical investigations. o Completed ground survey. o Identified and evaluated treatment process. o Completed construction and value engineering review. o Developing the plan and process for abandoning existing water plant. o Finalizing 30%design documents. • Design alternatives evaluated. o What treatment process should the plant have? o How to incorporate water storage requirements associated with the water master plan outcomes. o How to fit all the facilities on the site? o How to connect new plant to existing. • Processes of new plant. o Coagulation and filtration systems to remove turbidity and pathogens. o Chlorine addition to further disinfect the water. o Ozone addition to eliminate taste and odor issues and destroy potential algal toxins. o Solids removal for better filter operations and greater disinfections. Prohibited in Oregon. o Ozone Coalition. • Direct filter plant. • How to handle storm driven events. • Storage volumes. • Site Layout—Existing area, an initial concept. • Challenge—Crossing Ashland creek. o All existing pipes on the east side of the creek. o New plant site is on the west side of the creek. o Evaluating: Going over the creek on a new bridge. • Cost estimating and constructability Review: o Cost estimating services provided by Mortenson constructions. o Four rounds of cost estimating: • January 23 • May 24 • June 11 • July 15 • Estimated treatment construction cost. • Look at cutting costs. How many buildings are needed, conference rooms, etc. 36 million from 42 million. • Additional power savings costs. o Additional Hydropower. o Solar power. • Follow up activities o Phase 2—Final engineering/permitting 2019-2020. o Phase 3 —Bidding assistance 2020. o Phase 4—Construction 2020-2022—Build new facilities and decommission existing plant. • Proposed location. Fleury explained that each item will Council discussed the historical value of the current plant. Madding spoke that if Council has any further questions to send them to Staff. Council discussed having another Study Session for this item. Madding explained that this item is on the Look Ahead for the September 3rd Business Meeting but if Council would like another Study Session to let Staff know. The Study Session was adjourned at 7:00 PM Respectfully submitted by: City Recorder Melissa Huhtala Attest: 4R-C"'2-Vd Mayor Stro erg In compliance with the Americans with Disabilities Act, if you need special assistance to participate in this meeting, please contact the City Administrator's office at(541)488-6002(TTY phone number 1-800-735- 2900). Notification 72 hours prior to the meeting will enable the City to make reasonable arrangements to ensure accessibility to the meeting(28 CFR 35.102-35.104 ADA Title l). ,ASHLAND i° ' Design of a 7.5 Million Gallon � g a Day Water Treatment Plant ``'''` Project #2018-20 iitherdi Ashland City Council Study Session Briefing August 5, 2019 F) qiBackground and Additional Information 02 What Have We Been Doing? Alternatives Reviewed czi, Path Forward Background and Additional Information Project Execution • Four Project Phases 1 . Alternatives Analysis and Preliminary (30%) Engineering — hired HDR 2. Final Engineering — future 3. Bidding Assistance — future 4. Construction Administration — future City of Ashland I Design of a 7.5 MGD Water Treatment Plant Building Upon 2016-2018 Work FYR • New plant at the Granite Site • Existing plant to be decommissioned • 7.5 MGD expandable to 10.0 MGD in the future • Incorporate clearwell for additional future storage • Not membrane filtration processes • Need to address taste-and-odor compounds, algae, and algal toxins City of Ashland I Design of a 7.5 MGD Water Treatment Plant Issues We Are Facing Now • Defining the treatment processes • Obtaining Oregon Health Authority acceptance for the future processes and regulatory requirements • How to fit everything onto the challenging Granite site • Planning what to do with existing plant once new plant is operational • Determining construction and lifecycle costs • Identifying permitting requirements City of Ashland I Design of a 7.5 MGD Water Treatment Plant 02 What Have We Been Doing? Two Phased Approach • Phase 1A — Alternatives Evaluation August 2018 to February 2019 • October 11 , 2018 — first alternatives workshop • January 23, 2019 — second alternatives workshop • Phase 1B — Preliminary (30%) Design • February 2019 to July 2019 • Value Engineering workshop — June 11 , 2019 City of Ashland I Design of a 7.5 MGD Water Treatment Plant Phase 1A — Treatment Alternatives vConducted geotechnical investigations vCompleted ground survey ✓Identified and evaluated treatment processes ✓Sized the new WTP clearwell/reservoir ✓Identified and located buried and aboveground piping vPrepared cost estimates for alternatives vPrepared design recommendation City of Ashland I Design of a 7.5 MGD Water Treatment Plant Phase 1B — Prelimina ry Design ✓Conducted additional geotechnical investigation ✓Evaluated the potential of a secondary intake vCompleted construction and value engineering review vDeveloping the plan and process for abandoning existing WTP ✓Finalizing 30-percent design documents City of Ashland I Design of a 7.5 MGD Water Treatment Plant l i pememaJ sangeuJe;Iv co is . „ panowaJ aa� pue usy aui �i ., q l p Jo epis a;isoddo all uo `�"` t a o s aau "' ale suoi�oeuuoo JeMOS ` -• . - :,�, will sugap sey ells pue je enn pegsluu - . b, >' " • -..„ peal n ba l ' eq (ew buidwnd .«. i 4. * oS-19H ueyi Jamol s-3 - papaeu .. ,....y. ,,,,.s . si eaae MI s‘aTIS eq Aew 6ulpea6-ai . {aoapaq Jo/pUe IN os sa is IU ' pan-wall nnoilays Hews sl eaJe Dal daalS II seq a}is 11aaanp fell algel1end d ', Design Alternatives Evaluated FY2 • What treatment process should the new plant have? • How to incorporate water storage requirements associated with the Water Master Plan outcomes? • How to fit all the facilities on the site? • How will we connect new plant to the existing system? City of Ashland I Design of a 7.5 MGD Water Treatment Plant Processes at New = Plant - Same as existing plant • Coagulation and filtration i -• ■ systems to remove turbidity and pathogens • Chlorine addition to further disinfect the water City of Ashland I Design of a 7.5 MGD Water Treatment Plant - ,.\ Processes at New • Plant New processes 4,fr 1 • Ozone addition to ~ E l eliminate taste-and-odor • F -' issues and destroy potential algal toxins • Solids removal for better filter operations and greater disinfection Storage Volumes • New clearwell at plant site • Around 850,000 gallons • Used for: o Cleaning filters o Improving pumping operations Time to disinfect the water • Storage for distribution system • Emergency water storage City of Ashland I Design of a 7.5 MGD Water Treatment Plant Site Layout — Existing Area I-)� Upper Site %• - — �� Existing —- '�' ��.. Conditions fFp 4 `� \-----.'--- - / / = - / � __ `,�\• „..-▪ -/„, - \/ j / � '/, - � y .� r'w , J w% i i %r � / r4 •r/ i f ti- City of Ashland I Design of a 7.5 MGD Water Treatment Plant -,:.� Site Layout — An Initial Concept F��,,,,,,._„:::,..,,,,..,,,,,*„..._,,__ � \.,„.,..„,,,,..,.„.._, _ .....,..._„_.........„__,,.... .... 3'%�"„-� _��__ _� Mass �r��'��f� = �. < ` _ �� Excavation,........„..__ ____,..„.........,„„,....,„...._... �j y _ 1 „.„,,,,,,,,.. .,„ 1 _,...• s tr _____ ;;y \�\\`..,, 1.,, _._._ ,--- ter, / � �� \y it= — - .: :- '�- �� j,�rf/j'!�� -� s _ ./'///%7 % ( /�) City of Ashland I Design of a 7.5 MGD Water Treatment Plant Site Layout - An Initial Concept �)� 1 -= _ Mass _ — = xcavatlon s — mss' 1 ',—_fir 00 �_`— _ ;��— City of Ashland I Design of a 7.5 MGD Water Treatment Plant ; Crossing Ashland ,9� �� ,• Creekramie Strget - t Reservoir . • All existing pipes on the .r . ,, c. east side of the creek. •3= - , • New plant site is on the �°` •`^ west side of the creek. ..ikts. ,s lel• Evaluating: ` '"""mac` Public Parking P 0 Going over the creek on - a new bridge o Burying pipes underneath , r the creek City of Ashland I Design of a 7.5 MGD Water Treatment Plant Cost Estimating and Constructability Review FN J Y • Cost estimating services provided by Mortenson Construction. • Four rounds of cost estimating: • Jan. 23 treatment alternatives workshop May 24 alternatives workshop J• une 11 Value engineering & constructability session O July 15 Basis of Design Report City of Ashland I Design of a 7.5 MGD Water Treatment Plant Est. Treatment Construction Cost ($M) $50 $42.1 $45.9 $43.3 $40 $36.0 $30 $20 $10 $- Jan. 23 May 24 June 11 July 15 City of Ashland Design of a 7.5 MGD Water Treatment Plant Y � 9 r Additional Power-Savings Costs F)� • Additional Hydropower o $2.3+ million for 46 to 78 kW hydropower system o Upgrades to Gulch Power House is a better return-on- investment • Solar Power o $1 .0 million for 200 kW solar power array o Size constrained by City's power purchase agreement City of Ashland I Design of a 7.5 MGD Water Treatment Plant ,I . Vic- - v X27 , ,W- .. .. •a :•• ;t ,4 J �?r 4° * 7 .*',. . `, f;�`�f _i-� Path Forward _ - ��-• ti : . 1 Follow-Up Activities l Phase 2 — Final Engineering/Permitting (2019 to 2020) Phase 3 — Bidding Assistance (2020) Phase 4 — Construction (2020 to 2022) • Build new facilities and decommission existing plant City of Ashland I Design of a 7.5 MGD Water Treatment Plant Al '1 G '�§ _ , SHLAND ♦: . Design of a 7.5 Million Gallon --g a Day Water Treatment Plant .. ply- y Project#2018-20 ' Pierre Kwan— HDR kir FY i New Site Layout I-)1 • Consolidated buildings. -.:-\.'_-1,-./-----__---'_=-rr. tr' 1 \ • Moved clearwell up to a ∎ ).= 362-`_- '' , \\_--,/ ,//','/' flatter upper location. • \; \E� - ---_ — . - � _// /'f'. Yy I /\.• \\ ±i', \I t��' `•l\``,�__ is/ ',/,J/ • Reduced delivery truck ` ;r' Y I \ I 1 \\ I driving areas. s.• 3,; :." \; „ ; 1„' \\• \\\\ f a* _::: A.t$ .',/'� \� \\� `\/ i 1 71 f • Switched to more \ \'1 '' '' y1 \ ' \ - '' compact treatment ;/ i,�; '\\ - �s'(c 'i ) '----------- processes. 0,-_,...,,,..,, ,/ , , y __- ,- ------ _- City of Ashland I Design of a 7.5 MGD Water Treatment Plant