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Home My WebLink AboutC2011-169 - 5/27/2011 - ApprovedAMENDMENT NO. 5 TO CONTRACT FOR PROFESSIONAL SERVICES The City of Corpus Christi, Texas hereinafter called "CITY ", and Bath Engineering Corporation hereinafter called "CONSULTANT," agree to the following amendment to the Contract for Professional Services for O.N. Stevens Water Treatment Plant Process Monitorin Instrumentation and Automation Improvements (Project No 8600) as authorized and amended Original Small A/E June 3, 2008 Administrative Approval $47,000.00 Amendment No. 1 April 21, 2009 M2009 -097 $398,600.00 Amendment No. 2 January 19, 2010 M2010 -023 $377,675.00 Amendment No. 3 July 26, 2010 Administrative Approval $47,550.00 Amendment No. 4 March 5, 2011 Administrative Approval $38,605.00 EXHIBIT "A" PART 1. SCOPE OF SERVICES SECTION B. ADDITIONAL SERVICES, shall be amended to add the following Additional Services as set forth in Exhibit "A ": • ITEM NO. 12 Development of Sequence of Operation SOO Lo is Narrative shall be amended to include additional services — $38,720 EXHIBIT "A" PART 3. FEES SECTION C. SUMMARY OF FEES shall be modified and is attached as Exhibit "A -1" Summary of Fees for a revised fee not to exceed $38720.00 (Thirty -Eight Thousand Seven Hundred Twenty Dollars and Zero Cents), for a total restated fee not to exceed $ 948,1160.00 Nine Hundred Fo -Ei ht Thousand One Hundred Fifty Dollars and Zero Cents). All other terms and conditions of the June 3, 2008 contract and any amendments between the City and Consultant will remain in full force and effect. CITY CORP S HRI I Juan Peral s Jr., P.E. (Date) Assistant City Manager RECOMM DED Pete Anaya, P.E. (Date) Director of Engineering BATH ENGINEERING CORPORATION v hard C. Pittma E., President ( ate) 656 S. Staples S %,S�uite 110 Corpus Christi, TX 78411 (361) 992 -2284 Office; (361) 992 -2287 Fax Et NTEK k ATTEST Armando Chapa, City Secre ry (Date) R to COHTViACT MANAGER8# Project Number: 8600 CIP No. WA 01 APP OVED A O FORM Funding Source: 550950 -4479- 00000 - 180097 E= ncumbrance Number: ~ 2011 -169 (Date) 05/27/11 AMD. NO.5 . Page 1 of 1 GXED Bath Engineering 10- Process Monitoring Instruentation hL4m Ulmd. No. 5- Batd. No. 5.docx I G. R��h AMENDMENT NO. 5 31 March 2011 Mr. William Green Engineering Services City of Corpus Christi 1201 Leopard Corpus Christi, Texas 78401 Reference: O.N. STEVENS PROCESS MONITORING INSTRUMENTATION AND AUTOMATION IMPROVEMENTS: PROJECT NO. 8600: Filter PLC Upgrades Scope Dear, Mr. Green This letter is our request for additional funding of$38,720_'.for Amendment No. 5 to the ONSWTP Project 8600. This Amendment is for additional Contract Engineering Services and Integration Services to develop a series of control system Sequence of Operation (SOO) Logic Narratives for the optimal operation of the water plant filter systems. The Sequence of Operation documents will define the step by step filter system operation narrative required for the development of the filter system PLC control logic, including new enhancements proposed in a study recently preformed by Freese - Nichols. These SOO documents will serve as a guideline to the Control System Integrator for the proper programming of the logical series of instructions and procedures that reside in the PLC and SCADA control equipment utilized for filter operation. The SOO will also serve as a document to assist maintenance and operations staff in understanding and trouble shooting, and training operators on the Filter Systems Operation for the life cycle of the system. A sample SOO document and our revised project fee "Exhibit A° is included below as an attachment along with our man -hour estimate. Should you need any additional documentation or explanations for this Amendment please contact me Sincerely, BATH ENGINEERING CORPORATION Z William B. St; �k P.E. LI=ED AP Principal Engineer BATH ENGINEERING CORPORATION TEXAS FIRM REGISTRATION NO. F-829 5656 S. Staples St., Suite 110 • Corpus Christi, Texas 78411 • Phone 3611992 -2284 • Fax 3611992 -22F PA184511845 -05 SOO NarrativeMAdm!MAMMENaMENT 51MARCH24111ShortForm AE Exhibit Letter Ammen 5 Rev 131 March EXHIBIT "A" Page 1 of 6 Nowl RIMP *Oim *Check Ensure All Valves are Closed 1. Open IFV 2. When Filter X Level > Trough Level SP, Open FTWV until Turbidity < SP 3. If after 15min Turbidity < SP close FTWV 4. Ramp EFCV Open @ Rate of SPFxF/Time Period until FxF = SPFxF 5. EFCV PID Operating at SPFxF from Influent Level Cascade PID Normal Shutdown Sequence I. Close EFCV 2. Check if EFCV is Closed 3. Close IFV Normal Backwash Sequence I. Check if Filter X is Shutdown, if not Shutdown filter 2. Open FTWV until Filter X Level= Bottom of Trough ° SP 3. Close FTWV • 0< FxF < SP max • Filter X Runtime < SPmax SPCF: Set Point Plant Flow Rate SPFxF: Set Point Individual Filter Flow Rate FxF: Filter Flow Rate EXHIBIT "A" Pa e2of6 Wash Water Tower PLC Logic Narrative Start -Up At start up the Wash Water Tower PLC loads the default value six for backwash rate (gpm /sf) for stage one [tag - name], twelve for back wash rate for stage two [tag - name], eighteen for back wash rate for stage three [tag- name], eight for back wash rate for stage four [tag - name], one minute for the stage one timer duration set point [tag - name], five minutes for the stage two timer duration set point [tag- name], five minutes for the stage three timer duration set point [tag- name], and three minutes for the stage four timer duration set .point [tag - name]. The Wash Water Tower (WWT) PLC then switches on the internal PLC bit tag [tag -name] indicating the WWT PLC is in maintenance state. Maintenance State While in maintenance state, manual control of the valve.FCV- 1502 -01 is disabled, the system is unavailable for backwash and all PLC internal alarms are disabled. The backwash rate (gpm /sf) for stage one [tag- name], the back wash rate for stage two [tag- name], the back wash rate for stage three [tag- name], the back wash rate fo"r stage four [tag- name], the stage - one timer duration set point [tag- name], the stage two timer duration set point. [tag - name], the stage three timer duration set point [tag - name], and the stage four timer duration set point [tag - name] can only be set in maintenance state through;t a HMI. A command from the HMI to move to the next state, which is manual- operation, can only be activated if HSE- 1501 -03, HSE - 1501-07 and HSE - 1501 -11 are all showing - REMOTE status on the Wash Water Supply Station (WWS) PLC and HSE- 1501 -Q1 on,the WWT PLC is showing REMOTE status. Manual State When the conditions knave been met to move to. :the manual state and the command has been issued from the HMI to proceed, the WWT PLC switches on off the internal PLC bit tag [tag - name] indicating the WVV7 PLC is in maintenance state and the WWT PLC switches on the internal;:PLC tag [tag -name] indicating the WWT PLC is in manual state. The backwash failure counter.[tag -name] is also,reset at this time. While in manual state, manual control of FCV - 1502 01: is enabled and a manual backwash can be performed. Manual backwash is initiated by opening V'alve FCV 1502- 01'by..inputting a 0-100% value into FIC- 1502 -01 in the HMI. ZSO- 1502-01 will turn on and.ZSC- 1:502 -01 will turn off indicating that FCV- 1502 -01 is opened. When FCV - 1502 -01 is open, the.manual backwash timer [tag -name] is started and the backwash totalizer FQ- 1502 -01 is reset. Manual backwash is terminated by closing valve FCV - 1502 -01 by inputting a value of 0% 'iinto FIC- 1502 -01. Complete closure of FCV - 1502 -01 is indicated when ZSO- 1502 -01 is off and ZSC- 1502 -01 is on. When FCV- 1502 -01 is closed, the manual backwash timer [tag -name] is stopped and reset. If manual backwash timer reaches max backwash time set point [tag -name] an internal PLC alarm will activate as well as the corresponding HMI alarm. If HSE - 1502 -01 changes to Local control or if LSH- 1502 -01 is triggered, then the WWT PLC switches off the internal PLC bit tag [tag -name] indicating the WWT PLC is in manual state and switches on the internal PLC bit tag [tag -name] returning the WWT PLC to maintenance state and an internal PLC alarm will activate. if command is issued to return to maintenance state, the WWT PLC switches off the internal PLC bit tag [tag -name] indicating the WWT PLC is in EXHIBIT "A" Pa e3of6 manual state and switches on the internal PLC bit tag [tag -name] returning the WWT PLC to maintenance state. If a command is issued to enter auto state from the HMI and ZSC- 1502 -01 indicates FCV- 1502 -01 is closed the WWT PLC switches off the internal PLC bit tag [tag -name] indicating the WWT PLC is in manual state and switches on the internal PLC bit tag [tag -name] indicating the WWT PLC is now in Fill -Up state. Fill -Up State The WWT will stay in Fill -Up state while LIT - 1502 -01 is below the high set point [tag- name]. WWS PLC automatically monitors and automatically fills the tank up.,as needed. If LIT - 1502 -01 is greater than or equal to the HiHi set point [tag -name] or if LSH- 1502 -01 is triggered or if ZSO- 1502-01 is on indicating the hand wheel was used and FIC- 1502 -01 is set to 0% then an corresponding internal WWT PLC alarm will activate, the HMI will' reflect this alarm and the WWT PLC will enter maintenance state by switching off the internal ;PLC h t.tag [tag -name] indicating the WWT PLC is in Fill -Up state and switching on the internal PLC bit tag [tag -name] indicating the WWT PLC is now in maintenance state. If L -01 is above. the high set point [tag - name], then the WWT PLC will automaticaliyenter readystate by switching off the internal PLC bit tag [tag -name] indicating the WWT PLC is in Fill -Up state and switching on the internal PLC bit tag [tag -name] indicating the WWT PLC is now in ready state,.awaiting an Auto Backwash command. If a command is issued fronthe HMI'to enter.manual state an`d %the WWT PLC switches off the internal PLC bit tag [tag = name] indicating'the WWT PLC is in Fill -Up state and switches on the internal PLC bit tag [tag name] returning the WWT PLC to manual state. Ready State When in Ready state the WWT PLC ,waits for a request'from the Common PLC to initiate the back wash sequence. However if LIT 1502 -01 is.Jess than the hi set point the WWT PLC will switch off the internai;.PLC bit tag [tag- name] indicating the WWT PLC is in Ready state and switch on the inter nal`PLC; bit tag [tag name] returning the WWT PLC to Fill -Up state. If LIT - 1502-01 is greater than... or equal to the HiHi.set point [tag -name] or if LSH- 1502 -01 is triggered or if ZS0= 1 -01 is oh,Andicating.the hand wheel was used, while FIC - 1502 -01 is set to 0% then a corresponding internal WWT °PLC alarm will activate; the HMI will reflect this alarm and the WWT PLC will enter maintenance state by switching off the internal PLC bit tag [tag -name] indicating the WWT P:LG is in,;:FJ.11 -Up state and switching on the internal PLC bit tag [tag -name] indicating the WWT PLC Js ; now in maintenance state. If a request is made from the Common PLC to initiate a backwash.the WWT PLC will switch off the internal PLC bit tag [tag -name] indicating the WWT. PLC. in Ready state and switch on the internal PLC bit tag [tag -name] placing the WWT PLC 'n Auto - Backwash state. Auto Backwash State When in Auto Backwash State, the cumulative backwash totalizer HMI reset is disabled. The last backwash totalizer FQ- 1502 -01 is reset. FCV - 1502 -01 is used to control the flow rate, indicated from FIT - 1502 -01. A PID on the WWT PLC adjusts FIC - 1502 -01, the FCV - 01502 -01 position, as necessary to reach the flow rate set point [tag - name]. The flow rate set point [tag -name] changes depending on the backwash stage and the filter being backwashed. The Common PLC EXHIBIT "A" Page 4 of 6 will write the filter number tag [tag -name] with the filter number of the filter to be backwashed. Auto Back Wash Filters 1 -12 If the filter number tag [tag -name] is less than or equal to twelve, the WWT -PLC will start the PID utilizing the stage one flow rate set point [tag -name] which is calculated by multiplying the backwash rate for stage one [tag -name] and 1200. The stage one timer [tag -name] will start when ZSO- 1502 -01 turns on and ZSC- 1502 -01 turns off indicating FCV- 1502 -01 is open. When the stage one timer has passed the stage one timer duration set point [tag -name] the stage two timer [tag -name] will start, the stage one timer [tag -name] will stop, and the WWT -PLC PID will utilize the stage two flow rate set point [tag -name] which is calculated by multiplying the back wash rate for stage two [tag -name] and 1200. When the stage two timer has passed the stage two timer duration set point [tag -name] the stage three timer [tag -name] will start, the stage two timer [tag -name] will stop, and the WWT -PLC PID will utilize the stage three flow rate set point [tag -name] which is calculated by multiplying the backwash rate forstage three [tag - name] and 1200.. When the stage three timer has passed the stage three timer duration set point [tag -name] the stage four timer [tag- narne] will start, the stage three timer - [tag -name] will stop, and the WWT -PLC PID will utilize the stage four flow rate `set point%[tag -name] which is calculated by multiplying the back wash rate for. stage four [tag - name] and 1200. When the stage four timer has reached the stage dw timer duration set point [tag- name], the stage four timer [tag -name] will stop, the WWT PLC PID will stop, and FIC- 1502 -01 will be set to 0% to close FCV - 1502 -01. When FCV -1502 01 is completely closed, indicated when ZSO- 1502 -01 is off and ZSC - 1502 -01 is on, the WWT -PLC will report to the common PLC that the filter number [tag - name] backwash is complete: and then switch off the internal PLC bit tag [tag -name] indicating the WWT PLC is in Auto - Backwash state and switch on the internal PLC bit tag [tag -name] indicating the WWT PLC is now in Fill -.Up state Auto Back Wash Filters 13 -22 If the filter• number tag [tag -name] is.:. W .greater than or equal to thirteen, the WT -PLC will start the PID utilizing the stage flow rate set point [tag -name] which is calculated by multiplying the backwash rate for stage one [tag -name] and 1333. The stage one timer [tag -name] will start when ZSa; =150M1 turn on and ZSC- 1502 -01 turns off indicating FCV - 1502 -01 is open. When the stage one timer has passed the stage one timer duration set point [tag -name] the stage two timer [tag -nacre will start, the stage one timer [tag -name] will stop, and the WWT - PLC PID will utilize the..stage two flow rate set point [tag -name] which is calculated by multiplying the backwash rate for stage two [tag -name] and 1333. When the stage two timer has passed the stage two timer duration set point [tag -name] the stage three timer [tag -name] will start, the stage two timer [tag -name] will stop, and the WWT -PLC PID will utilize the stage three flow rate set point [tag -name] which is calculated by multiplying the back wash rate for stage three [tag -name] and 1339. When the stage three timer has passed the stage three timer duration set point [tag -name] the stage four timer [tag -name] will start, the stage three timer [tag -name] will stop, and the WWT -PLC PID will utilize the stage four flow rate set point [tag - name] which is calculated by multiplying the back wash rate for stage four [tag -name] and 1338. When the stage four timer has reached the stage four timer duration set point [tag- EXFlIBIT " A " Pa e5of5 name], the stage four timer [tag -name] will stop, the WWT -PLC PID will stop, and FIC- 1502 -01 will be set to 0% to close FCV- 1502 -01. When FCV- 1502 -01 is completely closed, indicated when ZSO- 1502 -01 is off and ZSC- 1502 -01 is on, the WWT -PLC will report to the common PLC that the filter number [tag -name] backwash is complete and then switch off the internal PLC bit tag [tag - name] indicating the WWT PLC is in Auto - Backwash state and switch on the internal PLC bit tag [tag -name] indicating the WWT PLC is now in Fill -Up state. Backwash Failure If during the auto backwash process for any of the filters the reading from FIT - 1502 -01 drops below the backwash stage's flow rate set point equal to or greater than the backwash flow rate max deviation set point [tag -name] then a ten second timer [tag name] will start. If the reading from FIT - 1502 -01 does not return to normal before the ten second..timer [tag -name] reaches ten seconds, then an internal PLC alarm will activate along with a corresponding HMI alarm, FCV- 1502 -01 will be set to close by writing Oho to FIC- 1502 -01, the backwash failure counter [tag -name] will be incremented, and the ten second timer pg -name] will ;be, stopped and reset. If the backwash failure counter [tag- name]:;exceeds the max number of failed backwashes [tag -name] then the WWT PLC will switch. :off the internal PLC bit tag [tag -name] indicating the WWT PLC is in Auto- Backwash state and switch on the internal-PLC bit tag [tag - name] placing the WWT PLC in maintenance state else the'WWT PLC will switch off the internal PLC bit tag [tag -name] indicating the WWT-PLC is in Auto - Backwash state and switch on the internal PLC bit tag [tag -name] placing the WWT PLC imF,ill -Up state. If during auto backwash pr6.cess.HSE- 1502 -01 changes to Local control then the backwash failure counter [tag -name] will be incremented, the WWT -PLC PID is stopped, the WWT -PLC switches off the internal PLC bit. [tag - name } indicating the WWT PLC is in auto backwash state and switches on the internal ?LC bit tag..[t ,g -name] returning the WWT PLC to maintenance state and an internal PLCalarm will activate. Backwash Abort If an abort backwash command is received from the HMI, an internal WWT PLC alarm will activate,along with a corresponding HMI alarm, WWT -PLC PID is stopped, FCV - 1502 -01 will be set to close by,wr ; ting 0% to':F 1502 -01 and then the WWT PLC will switch off the internal PLC bit tag [tag name] indicating tfe WWT PLC is in Auto- Backwash state and switch on the internal PLC bit tag [tag -name] placing the WWT PLC in maintenance state. XIT "A" Page EXHIBIT O. N. Stevens Water Treatment Plant Process Monitoring Instrumentation and Automation Improvements Project No. 8600 Summary of Fees k v =_ m W o a s 06/03/08 1 04/21/09 Admin Approval I M2009 -097 01/19/10 1 07/26/10 1 03/05/11 M2010 -023 I Admin Approval I Admin Approval I Admin ORIGINAL CONTRACT AMD. NO. 1 AMD. NO.2 AMD. NO.3 AMD. NO.4 AMD. NO.5 TOTAL BASIC SERVICES 1 Prelimina Phase $47,000.00 $0.00 $6,990.00 $0.00 $0.00 $0.00 $53,990.00 2 Design Phase 0.00 255,125.00 51,480.00 22,500.00 0.00 0.00 329,105.00 3 Bid Phase 0.00 3,780.00 2,780.00 1,000.00 0.00 0.00 7,560.00 4 Construction Phase 0.00 28,520.00 4,050.00 2,000.00 0.00 0.00 34,570.00 Subtotal Basic Services 47,000.00 287,425.00 65,300.00 25,500.00 0.00 0.00 425,225.00 ADDITIONAL SERVICES 1 Management of Change Development 0.00 31,775.00 0.00 0.00 0.00 0.00 31,775.00 2 Equipment Standards Development 0.00 21,000.00 0.00 0.00 0.00 0.00 21,000.00 3 GPS Site Surrey 0.00 6,000.00 0.00 0.00 0.00 0.00 6,000.00 4 Electronically Verify FO Cable 0.00 12,000.00 0.00 0.00 0.00 0.00 12,000.00 5 Construction Observation Services 0.00 20,400.00 9,260.00 0.00 0.00 0.00 29,660.00 6 Process Sub - Consultant 0.00 20,000.00 0.00 0.00 0.00 0.00 20,000.00 7 Field Investigation 0.00 0.00 9,190.00 0.00 0.00 0.00 9,190.00 8 Warranty & As Builts 0.00 0.00 5,800.00 0.00 0.00 0.00 5,800.00 9 PLC & Assoc. Equipment (Estimated) 0.00 0.00 225,625.00 17,050.00 0.00 0.00 242,675.00 10 Factory Test, Integration & Start Up Services 0.00 0.00 62,500.00 0.00 0.00 0.00 62,500.00 11 Operator and Engineering Manual 0.00 0.00 0.00 5,000.00 0.00 0.00 5,000.00 12 Development of S 0 Logic Narrative 0.00 0.00 0.00 0.00 0.00 38,720.00 38,720.00 13 Change Order No. 1 0.00 0.00 0.00 0.00 12,565.00 0.00 12,565.00 14 Filter PLC Upgrade Package Modifications 0.00 0.00 0.00 0.00 26,040.00 0.00 26,040.00 Subtotal Additional Services 0.00 111,175.00 312,375.00 22,050.00 38,605.00 38,720.00 522,925.00 TOTAL AUTHORIZED FEE $47,000.00 $398,600.00 $377,675.00 $47,550.00 $38,605.00 $38,720.001 $948,150.00 06/03/08 1 04/21/09 Admin Approval I M2009 -097 01/19/10 1 07/26/10 1 03/05/11 M2010 -023 I Admin Approval I Admin Approval I Admin SUPPLIER NUMBER TO BE ASSIGNED BY PURCHASING DIVISION w� City of CITY OF CORPUS CHRISTI Corpus Christi DISCLOSURE OF INTEREST City of Corpus Christi Ordinance 17112, as amended, requires all persons or firms seeking to do business with the City to provide the following information. Every question must be answered. If the question is not applicable, answer with "NA ". See reverse side for filing requirements, certifications and definitions. COMPANY NAME: Bath Engineering Corporation P. O. BOX: STREET ADDRESS: 5656 S. Stap St., Ste. 110 CITY: Corp C h ri sti ZIP: 78411 FIRM IS: 1. Corporation X 2. Partnership ❑ 3. Sole Owner ❑ 4. Association ❑ S. Other DISCLOSURE QUESTIONS If additional space is necessary, please use the reverse side of this page or attach separate sheet. 1. State the names of each `employee" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Job Title and City Department (if known) N/A 2. State the names of each "official" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Title N/A 3. State the names of each "board member" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Board, Commission or Committee N/A 4. State the names of each employee or officer of a "consultant" for the City of Corus Christi an who worked on y matter related to the subject of this contract and has an `ownership interest" constituting 3% or more of the ownership in the above named "firm." Name Consultant NIA � I EXHIBIT "B" Pa e 1 of 2 FILING REQUIREMENTS If a person who requests official action on a matter knows that the requested action will confer an economic benefit on any City official or employee that is distinguishable from the effect that the action will have on members of the public in general or a substantial segment thereof, you shall disclose that fact in a signed writing to the City official employee or body that has been requested to act in the matter, unless the interest of the City official or employee in the matter is apparent. The disclosure shall also be made in a signed writing filed with the City Secretary. [Ethics Ordinance Section 2 -349 (d)] CERTIFICATION I certify that all information provided is true and correct as of the date of this statement, that I have not knowingly withheld disclosure of any information requested; and that supplemental statements will be promptly submitted to the City of Corpus Christi, Texas as changes occur. Certifying Person: Richard C. Pittman, P.E. Title: President (Type or Print) Signature of Certifying Date: Person: DEFINITIONS a. "Board member." A member of any board, commission, or committee appointed by the City Council of the City of Corpus Christi, Texas. b. "Economic benefit ". An action that is likely to affect an economic interest if it is likely to have an effect on that interest that is distinguishable from its effect on members of the public in general or a substantial segment thereof. "Employee." Any person employed by the City of Corpus Christi, Texas either on a full or part-time basis, but not as an independent contractor. d. "Firm." Any entity operated for economic gain, whether professional, industrial or commercial, and whether established to produce or deal with a product or service, including but not limited to, entities operated in the form of sole proprietorship, as self - employed person, partnership, corporation, joint stock company, joint venture, receivership or trust, and entities which for purposes of taxation are treated as non -profit organizations. e. "Official." The Mayor, members of the City Council, City Manager, Deputy City Manager, Assistant City Managers, Department and Division Heads, and Municipal Court Judges of the City of Corpus Christi, Texas. £ "Ownership Interest." Legal or equitable interest, whether actually or constructively held in a firm, including when such interest is held through an agent, trust, estate, or holding entity. "Constructively held" refers to holdings or control established through voting trusts, proxies, or special terms of venture or partnership agreements." g. "Consultant." Any person or firm, such as engineers and architects, hired by the City of Corpus Christi for the purpose of professional consultation and recommendation. EXHIBIT "B" Page 2 of 2