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Home My WebLink AboutE. BLOC DESIGN-BUILD, LLC - RADIO TELEMETRY SYSTEMSCity of -Port Arthur, Texas Ma or and Cit Council Communication DATE REFERENCE SUBJECT PAGE: NUMBER Authorization to Purchase Radio Telemetry Systems for 01-23-09 zoos-ca Several High Level Alarms at the Main WWTP for the Utility -1 of 1 WWTP SCADA Operations Department Wastewater Treatment Division. We recommend,that the City Council authorize the purchase of Radio Telemetry Systems for Several High Level Alarms at the Main WWTP for the Utility Operations Department Wastewater Treatment Division from BLOC Design-Build, LLC of Longview, Texas in the amount of $23,975. BACKGROUND The Main WWTP has experienced several instances of overflows of various structures during power, mechanical, and/or electrical failures. These are all violations of our TCEO permit, and the TCEO has informally requested information on our solution to the problem, as well cited these violations in discussions in our law suit with the Attorney General's office. These alarms will work with ourexisting telemetry system at the WWTP to send messages to the Water Purification Plant to call stand-by personnel to respond. The alarms will be located at our main influent structure, trickling filter LS, and the stormwater influent structure. Several years ago, we began the process of installing radio telemetry systems at our remote water tanks and key lift stations so the Water Plant Operator could monitor and/or control these. sites. We have since incorporated these systems into City Standards for lift stations, and last year the TCEQ began requiring such systems as part of the Chapter 217 wastewater system design criteria. Data Flow Systems manufacturers the remote telemetry system we currently utilize, and BLOC Design-Build, LLC is the exclusive Value Added Reseller (VAR) in Texas (sole source). They have quoted this equipment and installation at $23,975. BUDGET/FISCAL EFFECT This equipment is budgeted in account 410-1256-532.92-00 at $24,000, leaving a balance of $25. SUMMARY We recommend that the City Council authorize the purchase of Several High Level Alarms at the Main WWTP forthe Utility Operations Department Wastewater Treatment Division from BLOC Design-Build, LLC of Longview, Texas in the amount of $23,975. RECOMMENDED: elly Eldri ge Director of Utility Operations PREPARED BY: KE APPROVED BY City Manager .? j Shawna Tubbs Purchasing Manager APPROVE ~?~_Z~~~l ~ f `~`-r Rebecca Underhill Director of Finance ~ OTHER (DESCRIBE) PROCESSED BY clrr SECRETARY DATE 1.3 n. i4. 1UV9 i:U1PM ~RSAEngineers - Na.6319 P. 1 ^' C 140 E. Tyler St., Suitc 600 i-angview, Texas 75601- 903.z47.9444 903.236 7779 rax rdurhein(?n blocdesigt.com D E S I G N B U ~ ~ D ~~~.. O.RIDGING THE LINES OF COMMUNICATION May 20, 2008 Donna King City oPPori Arthur P.O. Box 1089 Port Arthur, TX 77641 Re: WWTP SCADA System Work Subj.: Quotation 5408-PA-3 Dear Ms. King: via fax: 409-963-2571 Thank you for your interest in BLOC Design-Build's Instrumentation and Control Services. As you requested, this letter will serve as our proposal to provide SCADA System work for the City of Port Arthur. The total cos! for fhe labor and expenses for this quotation is PROVIDED BELOW:. SCOPE OF WORK WWTP SCADA IMPROVEMENTS ....:.................................:..........................$23 975.00 - BLOC Design will install the necessary RTU. enclosure and.. function modules necessary to telemeter the 1) storm water rake, 2) influent water rake, and 3) trickling water lift station locations to the existing WWTP DFS SCADA RTU. ' -Any associated conduit necessary,to bring the float contacts or the ultrasonic transducer to the RTU location will be installed by the City of Port Arthur. Proposal is based upon RTU being located within 30 feet of the end device. -BLOC shall ground RTU to local earth ground provided by others. Ground rod should be at least 10 feet x 518" solid copper. - BLOC Design will terminate wires on both ends at the wastewater treatment plant and the Three locations identified above: - BLOC Design will configure, program and commission the 1) high float at the storm water rake, 2) high float at the influent water rake, and 3) .the HydroRanger ultrasonic level transducer at the trickling water lift station.. -BLOC Design will provide HyperSCADAserver control logic programming for the interaction of these devices named above with the existing SCADA system. Jin. 14. 2009 1;01''i>7 l~(SAEngineers iVo. ti379 'P. 2 Cost Propocal Page 2 of ] QUOTATION NOTES 1. No services, other than those described ih the "Scope of Work" are included in this quotation. 2. Provider of instrumentation and devices are responsible for signal/noise quality to meet the requirements of the control/telemetry system. 3. BLOC shall provide up to 40 feet of cable for use in weather light conduit at each RTU locatiori to interconnect to end device. Cable shall be four_conductor, twisted shielded pair for analog devices or 14 AWG jacketed stranded-copper wire for digital contacted devices. -, 4. Power for RTU enclosures shall be provided by others. 5. Surge protectien to protect devices outside of the DFS panel is the responsibility of instrumentation/device providers. 6. All conduits, iF required, to be installed by others. - 7. All wire to be pulled from field devices to existing SCADA panel by others. (Signal wire pairs shall be individually shielded with in a common sheath and rated to carry instrumentation signals): , 8. This quotation assumes that entry by our employees into "Confined Spaces" andlor "Permit-Required Confined Spaces" as defined by OSHA, is not required by the scope of the work io be performed under this quotation. 9. This quotation assumes that all electrical.-equipment to be accessed by our employees can be temporarily removed from service. 10. This quotation assumes that BLOC Design-Build employees will be assisted by the Cities current SCADA technician, as needed, during installation. I/O REQUIREMENTS 1. All digital inputs to the DFS RTU will be of a dry contacflype. 2. Mixing of multiple sources of power will not be permitted. 3. All digital. outputs from the DFS ,RTU will be dry contacts and provide for 120VAC at 10amp capacity. ' 4. All analog inputs will be 4-20mA. , 5. 4-20mA signals; at a minimum, to provide 500-ohm impedance drive. CONDITIONS 1. BLOC payment terms are NET 30. This quote will be honored for days.- 2. We have assumed that this work is tax exempt and have not incl ed any sales lax in the price. ~f2r~`1 .Jan. 14. 2009 1:02PM ~SkEngineers Ne.6319 P. 3 .Cost Pro0oeal Page 3 0l ] If this proposal is acceptable, please sign below and return one copy to serve as our . notice to proceed. If there are any questions please call me at 903.247.9444. Sincerely, BLOC Design-Build LLC , Robert Durham , Director Of Business Development OPTION - above Accepted and Work Authorized By: For City of Port Arthur Customer PO Number: Date: