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HomeMy WebLinkAbout07.d.1)e) Action Summary-Engineering & Operations Committee 5-27-14Sanrtaty DishiCf REGULAR MEETING OF THE BOARD OF DIRECTORS CENTRAL CONTRA COSTA DAVID R. WILLMMS SANITARY DISTRICT President ENGINEERING & OPERATIONS MICHAEL R.MCGILL President Pro Tent COMMITTEE PAUL CAUSEY JAMES A. NEJEDLY TAD J. PILECKI ACTION SUMMARY PHONE: (925) 228 -9500 FAX.- (925) 676 -7211 Chair Pilecki www.centralsan.org Member Causey Tuesday, May 27, 2014 1:00 P.M. 2 I Floor Conference Room 5019 Imhoff Place Martinez, California PRESENT: Chair Tad Pilecki, Member Paul Causey, General Manager Roger Bailey, Capital Projects Division Manager Andrew Antkowiak, Senior Engineer Sasha Mestetsky, Senior Engineer Edgar Lopez, Director of Administration David Heath, Associate Engineer Rita Cheng (left after Item 3.), Associate Engineer Dan Frost (left after Item 3.), Plant Operations Division Manager Alan Weer (left after Item 3.), Environmental Services Division Manager Danea Gemmell (left after Item 3.), Senior Administrative Technician Christina Gee 1. Call Meeting to Order Chair Pilecki called the meeting to order at 1:00 p.m. 2. Public Comments None. *3. Review draft Position Paper authorizing the General Manager to execute an agreement with Collison Engineering for professional engineering services at a cost not to exceed $95,000 for Phase 1 of the Zeolite- Anammox Pilot Plant Study as part of the Plant of the Future Project, District Project 7315 Associate Engineer Rita Cheng gave a presentation (attached) on the proposed 12 -month pilot plant study, providing background on the zeolite- anammox research, the Phase 1 scope of work, and a description of the pilot plant at Union Sanitary District. She noted that, since the establishment phase of the pilot plant Engineering & Operations Committee Action Summary May 27, 2014 Page 2 study requires warm temperatures, the contract would need to be awarded soon to take advantage of the imminent summer climate. Member Causey questioned how this project was related to the other Plant of the Future projects. Associate Engineer Dan Frost noted that District Project 7287 would be closed out, and Capital Projects Division Manager Andrew Antkowiak noted that the pilot plant study was a spinoff of DP 7287. Chair Pilecki asked that, in the future, staff clarify when a new DP number is assigned to a project. COMMITTEE ACTION: Reviewed and recommended Board authorization for the General Manager to execute the contract, with the caveat that staff explain from where the money is coming and how District Projects 7301, 7287, and 7315 are related. The information requested is below: The 2011 Treatment Plant of the Future visioning exercise was completed under the Treatment Plant Master Plan Update, District Project 7287. The Plant of the Future Roadmap, District Project 7315, was opened in Fiscal Year (FY) 2013 -14 as a contingency project within the Treatment Plant Program in order to initiate the Plant of the Future Roadmap project recommended as a result of the 2011 Treatment Plant of the Future visioning exercise and related piloting work. District Project 7287 will close out at the end of Fiscal Year 2013 -14 and is being replaced with District Project 7315 in the FY 2014 -15 Capital Improvement Budget (CIB) with the same budget as previously shown for District Project 7287 in the FY 2014 -15 CIB. The FY 2014 -15 estimated expenditures include piloting efforts only. Additional costs are expected to complete the Plant of the Future Roadmap project. District Project 7301 is for other current and future treatment plant planning projects and is not related to District Projects 7287 and 7315. The pilot work is being included as part of District Project 7315 instead of District Project 7301 because the pilot and pilot results will be tied into the Plant of the Future Roadmap. *4. Review schedule of upcoming bids and awards and discuss change orders over $50,000 Senior Engineer Edgar Lopez stated that there was one change order for the Primary Treatment Renovations, District Project 7285, which will be discussed at the next Committee meeting. Senior Engineer Sasha Mestetsky distributed a Schedule of Upcoming Bids and Awards (attached). He noted that the CCTV Sewer Inspection project will be bid soon and charged as an O &M expense, as previously recommended by the Committee. Engineering & Operations Committee Action Summary May 27, 2014 Page 3 COMMITTEE ACTION: Received the information. *5. Receive information on the bid for the Walnut Creek Sewer Renovations, Phase 10, District Project 8413 Mr. Mestetsky distributed a summary of the bids received for the project (attached), noting that the deadline to withdraw any bids was May 27, 2014. He also distributed a historical chart of sewer renovation projects to demonstrate how costs have increased through the years (attached). He stated that the FY 2014 -15 costs for the Walnut Creek Sewer Renovations, Phase 10 project will be higher than what was listed in the Capital Improvement Budget (CIB) /Capital Improvement Plan (CIP) Binder, but will be within the 15% contingency. Chair Pilecki noted that it has been a priority of the Board not to impact a neighborhood more than once if possible, and consolidating the work in keeping with this practice likely contributed to the size of the cost of the project. Member Causey stated his opinion that the project was $700, 000 over budget, according to the FY 2013 -14 numbers, and questioned the timing of the award. COMMITTEE ACTION: Received the information. Requested that staff prepare an announcement for a future Board meeting regarding the high cost; present the final budget page at the next Committee meeting; and explain how the total project cost compares to the CIB /CIP numbers in the Position Paper to be considered by the Board at the July 3, 2014 Board Meeting. *6. Receive construction update for Primary Treatment Renovations, District Project 7285 Mr. Lopez gave an update on the construction (attached). Chair Pilecki requested that, in the future, the percent of the total contract amount that change orders represent be listed next to the change order amounts. COMMITTEE ACTION: Received update. 7. Review draft Position Paper conducting public hearing to consider adopting the proposed Fiscal Year 2014 -15 Capital Improvement Budget (CIB) and approving the 2014 Ten -Year Capital Improvement Plan (CIP) (CIB /CIP to be distributed with the June 5, 2014 Board agenda packet) Capital Projects Division Manager Andrew Antkowiak noted that staff is working on making the changes to the CIB /CIP suggested by the Committee at the last meeting. Staff now has more accurate numbers, which affect the carryover, and Engineering & Operations Committee Action Summary May 27, 2014 Page 4 the total authorization will be less and will change again with actual numbers and authorizations in September 2014. Member Causey stated that it was difficult for him to recommend the CIB/CIP without the completed IT Master Plan or Strategic Plan. He noted that he was inclined to vote against it because he believed it to have issues of transparency, citing the uncertainty of how the Zeolite - Anammox Pilot Plant Study would be funded and under what District Project it was included. He stated that he was not opposed to the projects or budget, but needed to understand what was being asked for, and did not fully understand the allocations and authorizations. General Manager Roger Bailey stated that the IT Master Plan and Strategic Plan did not change the fundamentals of the budget. Staff is working on presenting the information more clearly, however, a budget is needed to move forward. COMMITTEE ACTION: Reviewed and recommended the Board conduct the public hearing to consider adopting the proposed Fiscal Year 2014 -15 Capital Improvement Budget (CIB) and approve the 2014 Ten -Year Capital Improvement Plan (CIP). *8. Discuss and receive update on the Sludge Blending Tank Emergency Mr. Lopez provided pictures of the gunite failure at the top of the Sludge Blending Tank, which stands 35 -feet high. He stated that it posed a safety hazard and appeared to be hanging three inches off the tank (the gunite itself is five inches wide). The failure was attributed to a possible water intrusion behind the gunite and corrosion of the bar. The tank was originally built over fifty years ago for digesters, but today it is filled with two to three feet of blended sludge. Staff would like to hire DN Tanks to knock off the gunite and evaluate the rods, and, to do so within the necessary timeline, the General Manager would have to declare an emergency. COMMITTEE ACTION: Received the update and recommended the Board declare an emergency at an upcoming Board meeting. 9. Announcements a. Next meeting scheduled for Monday, June 23, 2014 at 1:00 p.m. b. Re- bidding of the Plant of the Future Project General Manager Roger Bailey announced that the Plant of the Future will be re- scoped and re- advertised to select a consultant according to the District's selection process. The extent of Plant of the Future and nutrient issues will be included in the Request for Proposal. Engineering & Operations Committee Action Summary May 27, 2014 Page 5 COMMITTEE ACTION: Received the announcements. 10. Suggestions for future agenda items Member Causey asked when the discussion he requested was to take place regarding the cost of in -house staffing versus contract inspection services. He stated that he was concerned by the cost difference of the hourly rates in the contracts awarded by the Board in April 2014. General Manager Roger Bailey stated that, since the cost of service study includes a staffing needs assessment, and staffing issues fall under the purview of the Administration Committee, it was his preference to consider the matter at the completion of the study, targeted for the end of December 2014. Member Causey was comfortable with that approach. 11. Adjournment — at 2:33 p.m. * Attachment 5/27/2014 • Phase 1 of the Zeolite Anammox Pilot Plant for nitrogen removal from final effluent — Execute Professional Engineering Services Agreement with Collison Engineering • At a cost not to exceed $95,000 • As part of the Treatment Plant of the Future project, D.P. 7315 0 Phase 1 Zeolite Anammox Scope of Work • 3,000 gal /day volume method system • Determine site - specific nutrient removal performance • Estimate capital and operational expenses for a 100,000 gal /day pilot (Phase 2) • Financial Impacts: — $95,000 for 12 months — Equipment rental after 12 months - $2,500 /month 5/27/2014 2 • Significantly lower energy costs 50% aeration cost for aerated and 0% for non- aerated • Reduced sludge production • Significantly lower construction costs • Low O &M cost • No external carbon • Effective at any concentration - Sidestreams, mainstreams, and water re -use • Less greenhouse gases - Reduce N20 by at least 50% compared to conventional nitrification /denitrification Pilot at Union Sanitary District • June 2012- December 2013 • Pilot treated 3,500 gal /day of secondary effluent in a mobile semi - trailer • Volume Method reactors linked to polishing tanks using Surface Area Method • Results: - > 95% removal for ammonia, and >90% removal for nitrate - Majority ammonia removal from 35mg /L --> 10mg /L ( -5hrs) - Total ammonia removal: 35mg /L -> 1 mg /L (- 10hrs) 1 � 3 Questions? 5/27/2014 Capital Projects Division Schedule of Upcoming Bids and Awards Printed; 5/27/2014 DP No. Project Title Project Scheduled Engineer's Date Bids Low Bid Contractor Award Manager Bid Opening Estimate Received Date 8413 Walnut Creek Sewer Renovations, Nancy 05/22/14 $ 2,350,000 05/22/14 $ 2,288,000 K. J. Woods 07/03/14 Phase 10 Molina Sewer CCTV Inspection Project Alex Rozul 06/03/14 $ 850,000 06/19/14 li 8410 Cathodic Protection, Phase 1 Michael 07/01/14 $ 380,000 107/01/14 Penny 8415 Martinez Sewer Renovations, Phase 4 Michael 03/01/15 $2,000,0001'-- 2,000,000 TBD Penny 8412 Pleasant Hill- Grayson Creek Trunk Nancy 04/01/15 $'5, 000,OOOt TBD Sewer Molina 7311 TP Safety Enhancements, Phase 4 Brad TBD TBD TBD Leidecker 7291 Seismic Upgrades for the Pump & Jason TBD TBD TBD Blower Building DeGroot 7297 Wet/Dry Scrubber Replacement (Clint Shima TBD TBD TBD 7310 TP Piping Renovations, Phase 8 Brad TBD TBD Leidecker 8421 Lafayette Sewer Renovations, Phase 9 Nancy - - TBD ! TBD TBD Molina I - - -- * Dates are subject to change. ATTACHMENT 2 WALNUT CREEK SEWER RENOVATIONS, PHASE 10 DISTRICT PROJECT 8413 SUMMARY OF BIDS PROJECT NO.: 8413 DATE: MAY 22, 2014 PROJECT NAME: WALNUT CREEK SEWER RENOVATIONS, PHASE 10 PROJECT LOCATION: WALNUT CREEK, CA NO. OF ADDENDA: ENGINEER'S ESTIMATE: $2,350,000 NO. BIDDER BID PRICE 1 K. J. Woods Construction, Inc. $2,288,000 San Francisco, CA 94124 2 D'Arcy & Harty Construction, Inc. $2,584,405 San Francisco, CA 94124 3 Bay Pacific Pipelines, Inc. $2,730,650 Novato, CA 94947 4 Pacific Trenchless, Inc. $2,735,909 Oakland, CA 94607 5 Ranger Pipelines, Inc. $3,291,309 San Francisco, CA 94124 BIDS OPENED BY /s/ Donna Anderson DATE: May 22, 2014 C:\ Users \smestets\AppData \Local \Microsoft \Windows \Temporary Internet Files \Content.Outlook \WORFY9PQ \8413 Award Contract PP - WC10.docx Page 5 of 6 r;;-o YEAR PROJECT FOOTAGE (LF) ENG EST LOW BID ENG EST ($ /LF) LOW BID ($ /LF) 2014 Walnut Creek, Ph. 10 8,500 $2,350,000 $2,288,000 $276 $269 2014 North Orinda, Ph. 5 7,800 $1,900,000 $1,748,000 $244 $224 2013 Diablo, Ph. 2 9,350 $1,800,000 $2,085,370 $193 $223 2013 Lafayette, Ph. 8 8,300 $1,500,000 $1,321,305 $181 $159 2012 Walnut Creek, Ph. 9 12,000 $2,000,000 $1,688,000 $167 $141 2012 North Orinda, Ph. 4 14,400 $2,100,000 $1,562,091 $146 $108 2011 Walnut Creek, Ph. 8 10,000 $1,700,000 $1,338,000 $170 $134 2011 Lafayette, Ph. 7 14,000 $2,000,000 $1,638,900 $143 $117 2011 South Orinda, Ph. 5 11,000 $2,285,000 $1,538,000 $208 $140 2010 Diablo, Ph. 1 5,900 $1,500,000 $1,304,464 $254 $221 0 Martinez, Ph. 3 5,350 $1,268,000 $959,080 $237 $179 9 r South Orinda, Ph. 4 11,500 $1,540,000 $1,124,281 $134 $98 9 Lafayette, Ph. 6 13,200 $1,800,000 $1,314,125 $136 $100 Sp 5/28/2014 k0b Construction Update: Primary Renovations Project DP 7285 May 2, 2014 Primary Renovations • Overall status: —40% Contact work complete. • Current project focus: — Performance Test new Huber grit system — Continuing electrical, transferring equip to Temp MCC. — Installation of PLC Panel (RIO) — PST 4 work (drive shafts, sprockets, bearings, concrete repair, etc.) — Concrete coatings — Pre -air and scum hopper — PE Pump 1 rehabilitation 1 5/28/2014 Grit Washers i 4 5/28/2014 3 5/28/2014 Concrete Coatings i s After —scum hopper coated Before — scum hopper t Primary Effluent Pumps ` � � ice• It r �_ VFD Room (Old Electric Shop) 5/28/2014 61 Contract Budget • Original Contract amount: $ 10,277,000 • Change Orders: $ 244,992 • Total Contract amount: $ 10,521,992 • Payment to WM Lyles: $ 4,526,000 (43 %) 5/28/2014 R Sludge Blending Tank Emergency g Picture 1 — Gunite failure at the east side of the tank overhanging the lime equipment. Picture 2 — zoomed in view of Picture 1 location. Sludge Blending Tank Emergency _l Picture 3 — View of failure from the top of the tank.