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2021-079
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Last modified
6/17/2021 10:35:53 AM
Creation date
5/27/2021 1:36:35 PM
Metadata
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Template:
Official Documents
Official Document Type
Work Order
Approved Date
05/18/2021
Control Number
2021-079
Agenda Item Number
15.B.5.
Entity Name
Kimley-Horn & Associates, Inc.
Subject
Work Order No. 42, Centrate to Leachate Tank GST Conversion, CCNA2021
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are identified, the Consultant will work with the equipment manufacturers to specify time <br />appropriate make/model -and obtain cost estimates ffir equipment pr(.)curorient. <br />" Fhe (.,onsultant will also coordinate with the tank manuf4cuirer (`roman) to request a budget - <br />level quote for the instaHation of the selected mixer option(s). The Consultant will <br />surnmarize the mixing evaluation and mixer recommendations, along with the opinion of <br />probable cost for each option in a draft technical memorandurn. "'The Consultant will <br />facilitate a discussion with the Gounty to review, the recommendations in the memorandurn <br />and select the best fit for the County's installation. The technical memorandum w°ill then <br />i)e finalized and submitted to the County in electronic format. <br />Task 2: Tank ModifleafrionS (1,,UMP SUM) <br />The Consultant will utilize the final recommendation in the technical memorandum (Task <br />F) to prepare the ncccssary details for modification to the tmmk. These details shall consist <br />of specifying, anchor systems (if tank -bottom mixer is selected), details for securing the <br />Floating mixer (if' selected), coring details (if jet pump option is selected), ventilation <br />modifications, andJor coating details. It is anticipated that the Consultant will be <br />coordinating the implementation of these modifications directly with Croni; therefore., this <br />task does not include the preparation of detailed plans and specificiitions typically used to <br />obtain competitive bids through advertisement. This task will consist of Lip to four <br />responses to questions/requests for clarification from Crom and.one site visit. <br />'Task 3: Piping Modifications (LUMP SUM) <br />The County r plans to redirect the concentrated leachate from the gas wells to the GST <br />via a dedicated force main, utiflizing the pneumatic purrips in the existing wells for <br />conve " f`h -WAa r line located <br />yance� c County also intends to connect into the reclaimed te <br />along. the southern side of the biosolids dewatering facility (existing, on-site) for x)th:theu <br />within the tank. This task provides for design of the piping modifications tom) <br />V <br />concentrated leachate and the reclaimed water into the existing GST, as well as for <br />consideration of future outfall piping modifications to accommodate a future <br />treatment system., Future piping design and installation will be the responsibility of" the <br />treatment system provider. <br />The County, luras indicated that the piping modifications will be constructed by one of the <br />current on-callpipin, g labor contractors. This task will include preparation of details <br />sufficiew to direct the on. -call contractor. 'This task will not include preparation offull <br />plans, project specifications or competitive bid docurnents. 'Task 5 will include detailed <br />oversight ofthe construction phase to determine compliance: witthe design intent. <br />Paple 2 W'7 <br />
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