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HomeMy WebLinkAboutPR 24113 CHANGE ORDER NO. 6 OF MAIN WASTEWAER TREATMENT PLANT (WWTP) IMPROVEMENT PROJECT Orr of p r t INTEROFFICE MEMORANDUM Date: March 28, 2024 To: The Honorable Mayor and City Council Through: Ronald Burton, C.P.M., City Manager From: Calvin Matthews, P.E., Water Utilities Director RE: PR No. 24113 — Approve Change Order No. 6 of Main Wastewater Treatment Plant(WWTP) Improvement Project Introduction: This agenda item is seeking the Council's approval to execute Change Order No. 6 with ALLCO, LLC for the Main Wastewater Treatment Plant (WWTP) Improvement Project for an increased cost of$805,251.12 to the new updated contract amount of$69,764,107.55. Background: Resolution No. 22-147 awarded the Main Wastewater Treatment Plant(WWTP) Improvement Project to ALLCO, LLC of Beaumont, Texas for the total amount of $73,643,227.00. The construction phase is managed by Freese &Nichols, Inc. On August 2, 2022, Resolution No. 22-329, approved Change Order No. 1 for value engineering performed by Freese &Nichols, Inc., ALLCO, LLC, Golden Triangle Consulting Engineers, and the City of Port Arthur staff in the deduction amount of$6,234,049.00 for a new contract amount of$67,409,178.00. On December 20, 2022, Resolution No. 22-586, approved Change Order No. 2 including, Primary Clarifiers subgrade stabilization,Drying Beds demo,Demo and Remove CSS,Helical Piles, and Brentwood PVC TF Media price increase and reduction for the removal of VE Lighting Package, use of bank sand for pipe bedding, and remove Admin Building improvements in the deduction amount of$73,564.57 and 75-day time extension with a final project end date of December 17, 2026. On December 19,2023,Resolution No.23-556,approved Change Order No. 3 for an increased amount of$114,851.00 to replace 4 Trickling Filter Effluent Butterfly Valves with Slide Gates and add an expansion joint to Aeration Basin Buttress Wall. r On June 4, 2024, Resolution No. 24-246, approved Change Order No. 4 for an emergency repair to prevent the complete failure of the 30"force main from the lift station for an increased contract amount of$389,801.00 for additional piping to reach the existing 30" force main and to reroute the discharge piping of the existing 10"pump at the Main Outfall Lift Station to the existing 36" force main. In addition, to install a line stop at the 36" DI influent pipe to reroute the flow through 440 LF of 24"HDPE. As per Resolution No. 24-268, Change Order No. 5 was approved to provide and install Envirodyne Grit Removal Equipment which was a budgeted item in the Capital Budget and suggested as a cost-savings alternate manufacturer for $889,500.00. It also included $215,896.00 for replacing the 30" pipe connection at the new Headworks Facility with a 42" pipe for connection for the new 42" sewer force main being installed under a separate contract and a proposal to install VFD's to add variable speed control to the existing overhead crane at the Main Outfall Lift Station and crane certification which will be done by Crane Tech, Inc. with support by Allco for$13,195.00. The total cost of this change order resulted in an increase of$1,118,591.00,to a new total contract amount of$68,958,856.43. Freese and Nichols is proposing Change Order No. 6 for the cost associated with bypass pumping at the Main Outfall Lift Station (MOLS). The original plans called for the current pumps at the MOLS to be operational to transition new pump installation.However,the current pumps have not been functional and thus required reconfigured bypass pumping. Furthermore, during construction, additional bypass measures were required at the Wet Well of the MOLS due to the existing gates not being functional to transition the installation of the new gates and knife gate valves. The cost associated with the reconfigured bypass pumping is for $805,251.12, bringing the total contract amount to $69,764,107.55. Budget Considerations: The original contract price is $73,643,227.00 Change Order No. 1 decreased the contract amount by $6,234,049.00 Change Order No. 2 decreased the contract amount by $73,564.57 Change Order No. 3 increased the contract amount by $114,851.00 Change Order No. 4 increased the contract amount by $389,801.00 Change Order No. 5 increased the contract amount by $1,118,591.00 Proposed Change Order No. 6 will increase the contract amount by $805,251.12, increasing the new total contract amount to $69,764,107.55 The funding is available in Capital Improvement Projects (CIP) Account No. 405-40-000- 8516-00-00-000, Project No. WS0023 and is contingent upon the approval of budget amendment in Proposed Ordinance No. 7324. Recommendation: Recommend City Council approve PR No. 24113 to authorize the City Manager to approve Change Order No. 6 as per the work detailed in the attached Memo dated March 14, 2025 by Freese &Nichols, Inc., as described/outlined above. PR No. 24113 3/18/2025 cm Page 1 of 4 RESOLUTION NO. A RESOLUTION AUTHORIZING THE CITY MANAGER TO EXECUTE CHANGE ORDER NO. 6 FOR THE MAIN WASTEWATER TREATMENT PLANT IMPROVEMENT PROJECT WITH ALLCO, LLC OF BEAUMONT, TEXAS, FOR AN INCREASED COST OF $805,251.12 TO INCLUDE ADDITIONAL UPSTREAM BYPASS PUMPING,RESULTING IN A NEW TOTAL CONTRACT AMOUNT OF $69,764,107.55, AND EXTENDING THE CONTRACT TIME BY 180 DAYS DUE TO THE RECONFIGURED BYPASS PUMPING; FUNDING FROM CIP ACCOUNT NO. 405-40-000-8516-00-00-000, PROJECT NO.WS0023,IS CONTINGENT UPON THE APPROVAL OF THE BUDGET AMENDMENT IN PROPOSED ORDINANCE NO. 7324 WHEREAS, the City Council approved Resolution No. 22-147, awarding the Main Wastewater Treatment Plant Rehabilitation project to ALLCO, LLC of Beaumont, Texas for the total amount of$73,643,227.00; and, WHEREAS,on August 2, 2022,Resolution No. 22-329,approved Change Order No. 1 to reduce the contract amount by $6,234,049.00 for Value Engineering performed by Freese & Nichols, Inc., ALLCO, LLC, Golden Triangle Consulting Engineers and the City of Port Arthur staff for a new contract amount of$67,409,178.00; and, WHEREAS,on December 20, 2022, Resolution No. 22-586, approved Change Order No. 2 for a decreased amount of $73,564.57 including, Primary Clarifiers subgrade stabilization, Drying Beds demo, Demo and Remove CSS, Helical Piles, and Brentwood PVC TF Media price increase and reduction for the removal of VE Lighting Package,use of bank sand for pipe bedding, and remove Admin Building improvements to a new contract amount of$67,335,613.43 and add 75-day time extension with a final project end date of December 17, 2026; and, WHEREAS,on December 19, 2023,Resolution No. 23-556,approved Change Order No. 3 for an increased amount of$114,851.00 to replace 4 Trickling Filter Effluent Butterfly Valves with Slide Gates and add an expansion joint to Aeration Basin Buttress Wall, to a new contract amount of$67,450,464.43; and, PR No. 24113 3/18/2025 cm Page 2 of 4 WHEREAS, on June 4, 2024, Resolution No. 24-246, approved change Order No. 4 for ratifying the emergency repair on the 30" force main for an increased amount of$389,801.00 by installing additional piping with a 10"pump to reroute the force main, 36" Line Stop, and HDPE Bypass piping, to a new contract amount of$67,840,265.43; and, WHEREAS, Change Order No. 5 was approved for providing and installing Envirodyne Grit Removal Equipment, replacing the 30" pipe at the Headworks Facility with a 42" pipe for connection to the new 42" sewer force main from the Main Outfall Lift Station(MOLS)which is being installed under a separate contract, and proposal to install VFD's to add variable speed control to the existing MOLS overhead crane and get crane certified for an increase of $1,118,591.00,to a new total contract amount of$68,958,856.43; and, WHEREAS, Freese and Nichols, Inc. is proposing Change Order No. 6 for an as-needed basis with a not to exceed increase amount of $805,251.12 for the costs associated with the reconfigured bypass pumping required for the installation of the new pumps, gates, and knife gate valves at the Main Outfall Lift Station since the existing equipment was not operational as proposed in the original plans, bringing the new total contract amount to $69,764,107.55 and extend the contract time by 180 days due to the reconfigured bypass pumping. NOW THEREFORE,BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF PORT ARTHUR: THAT,the facts and opinions in the preamble are true and correct; and, THAT,the City Council hereby approves the City Manager's decision to execute Change Order No. 6 as per the Memo dated March 27, 2025 (Attachment "A") for an increase cost of $805,251.12 with ALLCO,LLC of Beaumont,Texas for the Main WWTP Improvements project, to a new contract amount of$69,764,107.55 and extended contract time of 180 days due to the reconfigured bypass pumping; and, PR No. 24113 3/18/2025 cm Page 3 of 4 THAT,funding is available in CIP Account No. 405-40-000-8516-00-00-000,Project No. WS0023, contingent upon the approval of budget amendment in Proposed Ordinance No. 7324; and, THAT, a copy of the caption of this Resolution be spread upon the Minutes of the City Council. READ, ADOPTED, AND APPROVED this day of , 2025 at a Regular Meeting of the City Council of the City of Port Arthur, Texas by the following vote: AYES: Mayor Councilmembers: NOES: Thurman Bill Bartie Mayor ATTEST: Sherri Bellard City Secretary APPROVED AS TO FORM: Roxann Pais o City Attorney PR No. 24113 3/18/2025 cm Page 4 of 4 APPROVED FOR ADMINISTRATION: 411) � p 7 Ronald Burt." P► alvin atthews, .E. City Manager Water Utilities Director APPROVED AS FOR AVAILIBILITY OF FUNDS: T e .rGi�„2 Lah Ly da(Lyn) Boswell, MA, ICMA-CM Clifton illiams, CPP Director of Finance Purchasing Manager ATTACHMENT A (MEMO DATED MARCH 14,2025) ��FREESEInnovative approaches zNICH0L5 Practical results a Outstandings service 11200 Broadway St.,Suite 2320 + Pearland,Texas 77584 + 832-456-4700 + FAX 817-735-7491 www treese torn March 27,2025 Calvin Matthews,PE Director of Water Utilities City of Port Arthur Texas 444 4th Street Port Arthur,TX 77640 Re: Project No. R15056 Port Arthur Main WWTP Improvements:Change Order No.006 Dear Mr. Matthews: Included with this letter is Change Order No. 006 for the above-referenced project. This letter is to serve as a narrative along with the supporting documentation attached. All the items included in this change order will be funded by the City of Port Arthur's CIP Account No.405-40-000-8516-00-00-000, No.WS0023. Item No. 1: Main Outfall Lift Station Additional(Upstream) Bypass Bumping This change order includes all bypass pumping and related charges incurred since November 5, 2024,and those projected through September 17,2025. Per the contract's Special Procedures,the contractor was to utilize the existing pumps at the Main Outfall Lift Station during installation of the new pumps. However, the existing pumps have been inoperable since November 2024,necessitating continuous bypass pumping. Compounding the issue,the existing sluice gates required to isolate the sewer box were also inoperable.As a result,two additional bypass pumps were installed upstream to allow for placement of an inflatable plug and diversion of flow,enabling installation of new knife gates at the pump inlets per the IFC Plans. The work involving the two additional bypass pumps to facilitate the knife gate installation has been completed.Bypass pumping will remain in place until at least two of the new pumps at the Main Outfall Lift Station are brought online,which the contractor currently forecasts to be completed by September 2025. Total Cost:$805,251.12 Additional Days: 180 Calendar Days To summarize,this Change Order has an overall cost increase of$805,251.12 and 180 additional calendar days to the contract time.There will be subsequent change orders for the remaining work that is still ongoing related to the work change directive. I hope the above narrative, along with the included supporting documentation, provides adequate information to be able to process this Change Order in a timely manner. Please don't hesitate to reach out to me if you need any further explanation or backup documentation. Sincerely, Rami Abusheikh, P.E. Construction Manager cc:Jess Liao,Hani Tohme,Murali Erat,Matt Cartwright PTR22379 T:\4.0 CONSTRUCTION\4.40 Contract Mod\4.43 Chg Orders\Change Order No.6 CHANGE ORDER Project Port Arthur Main WWTP Improvements Project Number Owner City of Port Arthur PR22416 Contractor Allco, LLC TX 870 Construction Manager Rami Aubhseikh, P.E. PTR22379 Design Professional Murali Erat, P.E. PTR22379 CoPA Account No. 169-07-015-8516-00-40-000;404-40-000-8516-00-00-000 CoPA Project No. ARP002-GRE-WWT; TW-0003-CON Change Order No. 006 Date 3/27/2025 Item Description Additional Days Change Amount 1 Bypass Pumping from 11/5/24 to 3/21/25 60 $ 329,818.12 2 Additional Bypass Pumps from 1/2/25 to 3/21/25 60 $ 62,771.00 3 Bypass Pumps to Complete MOLS Work 60 $ 412,662.00 4 5 Net Change in Contract Price this Change Order $ 805,251.12 Net Change in Contract Time this Change Order 180 Days The compensation in this Change Order is the full, complete, and final compensation for all costs Contractor may incur because of or relating to this change whether said costs are known, unknown,foreseen, or unforeseen at this time, including without limitation,any cost for delay, extended overhead, ripple or impact cost, or any other effect on changed or unchanged Work because of this Change Order. The changes in Contract Times are the complete and final adjustments for impacts to the ability of Contractor to complete the Work within the Contract Times and are the only adjustments to which Contractor is entitled.All terms and provisions of the Contract Documents remain in effect except as specifically modified by this Change Order. Original Contract Amount: $ 73,643,227.00 Net from Previous Change Orders: $ (4,684,370.57) Total Amount of This Change Order: $ 805,251.12 Percent Change in Contract Amount of this Change Order: 1.09% Total Percent Change in Contract Amount to Date: -5.27% New Contract Amount: $ 69,764,107.55 Original Contract Duration: 1,580 Calendar Days Additional Contract Days per Previous Change Orders: 75 Calendar Days Additional Contract per This Change Order: 180 Calendar Days Revised Contract Time: 1,835 Calendar Days Original Previous Revised Substantial Completion Date 7/5/2026 9/18/2026 _ 3/17/2027 Final Completion Date 10/3/2026 12/17/2026 6/15/2027 All CO Design Build Construction Management General Contractors P.O.Box 3684, Beaumont,Texas 77704 Phone:409-860-4459 Fax:409-860-3857 Email:allco@allco.com March 14,2025 Freese & Nichols 10497 Town& Country Way,Suite 500 Houston,TX 77024 Attn: Rami Abusheikh Re: City of Port Arthur WWTP Improvements Project Bypass Pumping Summary Dear Mr. Abusheikh: See attached correspondence summarizing the bypass pumping change orders in the amount of$805,251.12. Per the Special Procedures, all the existing pumps at the Main Outfall Lift Station (MOLS) were supposed to be operational and would only be taken down two at a time. One (1) large pump and one (1) small pump would remain in service to maintain all flows. At no point during the job have all four (4) pumps been operational and Allco has incurred a substantial amount in additional bypass costs. We have had our bypass pumps set up since January 2024 to perform tie-in work that was required by the contract. Also at this time, the City began having continuous issues with their pumps and we decided to leave our bypass set up as an emergency backup for the City. This was not required by the contract and we did this to be a good steward. By November 2024, none of the existing pumps were operational and all flows have been maintained by the Allco bypass since this date. Furthermore, additional bypass measures were required at Wet Well of the MOLS due to the existing gates not being functional. Per the Special Procedures, the existing gates were to be operational so we could isolate or shut flows to portions of the lift station to allow for installation of the new gates and knife gate valves. In order to proceed, the bypass piping had to be reconfigured and alternate suction points were established. Unfortunately, the reconfigured set up could not maintain flows due to capacity issues and we stated in our proposal that we could not guarantee this would work. To address this issue, we agreed to install an additional pump and more suction lines. This option did allow us to maintain flows, but we could not reduce flows enough to install the 60" plug to isolate the wet well. It also rained significantly during this time thus complicating matters. After almost two months, we informed the City that we could not install the plug unless flows were shutdown for a period of time. The City agreed and we were finally able to isolate the wet well. We understand that the original emergency work order was for$160,000, but that assumed the proposed changes would work as intended and allow for work to proceed. Allco stated numerous times that we could not guarantee what was proposed. All of these issues culminated in several months of delays that were beyond all of our control. Now that we have isolated the wet well and installed the Knife Gate Valves, we are able to proceed with work at the Main Outfall Lift Station. The bypass system will be returned to the original configuration and the additional piping and pumps will be taken off rent. As stated previously, none of the existing four(4) pumps are operational so we are on full bypass. Two of the new pumps must be put online in order to remove the entire bypass system. We estimate this will take approximately six (6) months if no other major issues occur. If such issues do arise, it is possible we will need to extend the duration of the bypass pumping and another change order would be required. It is still our expectation that we can meet this timeframe and we will make every reasonable effort to ensure we stay on schedule. Please contact the undersigned if you have questions or issues regarding this matter. Respectfully, Allco, LLC Brandon Harrison Ill In VI N N N O O 0 `O N N N C —. W ri '-I N r4 N '-i m m am N N N ` N O O 1n N N rI i�-I '-I m 1%S. .N-i 00 O eNi CO N I-1 -J r4 1.0 Lin Q 00 10 N ~ Ql N L.i 0 N N '-1 0 M Lc) d 00 N L re) CT1 o 1- ,n LU o N N N N Q O d' N V CO ,-1 N !- N d CO N N LU Z v} in cn D h- N V1 ul Z 0 0 0 y M O 1- ut L LU * CI, 4 N * C C O D ro N ., .0 C nz co C f _ 0 00 a-,r In CC �. 0 . Q N D. O 0. 7 b0 C C .0 7 (0 D CID d Q C 1 v \ C Gc a-� C W a a tan (0 4 a 2 o_ E .c E cc -D 7 a \ O a, a E a W 7 co 7 w= OD C 0_ H Z o - Q _ C d = N 'B a+ V H U CC Q la C Z 3 3 Q > CC a 00 o0 00 0 C C C to (,, a a a C 00 a s E E E '� C 7 7 7 ( t., O Q a d O F- VI , an , _1 a Q v, ,, 0 m a CC a1'0 CO d a m m CO CO U 1- * 1 3/14/2025 Subject: Port Arthur WWTP: Change Proposal-Additional Bypass Pumping (MOLS) From: "Brandon Harrison" <bharrison@allco.com> Sent: 3/7/2025 4:18:31 PM To: "Rami.Abusheikh@freese.com" <Rami.Abusheikh@freese.com>; "calvin.matthews@portarthurtx.gov" <calvin.matthews@portarthurtx.gov>; "jess.liao@portarthurtx.gov" <jess.liao@portarthurtx.gov>; "Hani Tohme" <tohmehani@yahoo.com>; "Joe M. Wilson" <joe.wilson@awceng.com>; "Keith Zotzky" <keith.zotzky_@awceng.com>; "Matt Cartwright" <Matt.Cartwright@freese.com> CC: "Keith Burrell" <kburrell@allco.com>; "Brittany Stutes" <bstutes@allco.com>; "Mike Nunez" <mnunez@allco.com> Attachments:Change Proposal-Additional Bypass Pumping MOLS.pdf See attached change order for your review. We assume this change order will start when we return to the original bypass arrangement and will end when two new pumps are put online. We included six months of additional bypass to cover this period in hopes we will finish earlier. I will also update the previous change order to cover the period through end of next week. I assume we will make a decision on the wet well bypass in the next week or two. The two change orders will need to be added together to cover everything. Thank You, Vice-President Division Manager—Heavy/Civil Arco P.O. Box 3684 Beaumont, Texas 77704 Ph: (409)860-4459 Fax: (409)860-3857 Email: bharrison@allco.com 1r1 AL' CO Design Build Construction Management General Contractors lbw P.O. Box 3684, Beaumont,Texas 77704 Phone:409-860-4459 Fax:409-860-3857 Email:allco@allco.com March 7, 2025 Freese& Nichols 10497 Town& Country Way, Suite 500 Houston,TX 77024 Attn: Rami Abusheikh Re: City of Port Arthur WWTP Improvements Project Change Proposal—Additional Bypass Pumping (MOLS) Dear Mr.Abusheikh: Allco proposes the following change order in the amount of $412,662.00 for additional bypass pumping at the Main Outfall Lift Station: DESCRIPTION/COST SUMMARY The pumps at the Main Outfall Lift Station are ALL out of operation. Per the specifications,all the pumps at the MOLS were assumed to be in operation and would be taken down two at a time. At no point during this project have all four pumps been operational and Allco has incurred significant bypass pumping costs to maintain flows. The City is now on full bypass until we put two (2) new pumps online. We estimate this process will take approximately six months. Pricing includes bypass rental costs,fuel, and maintenance for six months;The monthly bypass costs amounts to $68,777.00 per month The change order assumes we return the bypass to its original arrangement; additional costs will be needed if we are required to continue bypassing the main wet well Time Extension-180 Calendar Days ITEM LABOR MATERIALS EQUIPMENT SUBS MARKUP/OH TOTAL Bypass Pumping- $27,734.00 $140,292.00 $0.00 $190,812.00 $53,824.00 $412,662.00 Additional (6 months) Please contact the undersigned if you have questions or issues regarding this matter. Respectfully, Allco, LLC Brandon H rison 3/14/2025 Subject: Re: Port Arthur WWTP-Bypass Pumping Change Order (WET WELL) From: "Brandon Harrison" <bharrison@allco.com> Sent: 3/7/2025 4:42:52 PM To: "Rami.Abusheikh@freese.com" <Rami.Abusheikh@freese.com>; "calvin.matthews@portarthurtx.gov" <calvin.matthews@portarthurtx.gov>; "jess.liao@portarthurtx.gov" <jess.liao@portarthurtx.gov>; "Hani Tohme" <tohmehani@yahoo.com> CC: "Brittany Stutes" <bstutes@allco.com>; "Keith Burrell" <kburrell@allco.com> See below updated numbers totaling $392,589.12. Includes additional days, costs to reconfigure piping to original, and teardown of additional pumps/piping regarding the wet well bypass. The change orders were broken down for install, teardown, and rental. Below is a summary thru MARCH 21ST: • Change Proposal-Bypass Main Wet Well (Reconfigured Piping) o Total--$329,818.12 o Installed-11/5/24 o Installation Costs • $31,283.00 o Rental Costs/Fuel & Maintenance (Thru 3/21) • Total-$267,467.12 • Duration-136 days @ $1,966.67 per day o Return to Original Piping Configuration • $31,068.00 • Change Proposal-Bypass Main Wet Well Additional Pump/Piping o Total--$62,771.00 o Installed-1/2/25 o Installation Costs • $19,183.00 o Rental/Fuel & Maintenance Costs (Thru 3/21) • Total-$36,556.00 • Duration-76 days @ $481.00 per day o Teardown Costs • Total-$7,032.00 Thank You, 61404414 q4,titecteit 113 3/14/2025 Vice-President Division Manager—Heavy/Civil A LCO P.O. Box 3684 Beaumont, Texas 77704 Ph: (409)860-4459 Fax: (409)860-3857 Email: bharrison@allco.com Original Message From "Brandon Harrison" <bharrison@allco.com> To "Rarni.Abusheikh@freese.com" <Rami.Abusheikh@freese.com>; "calvin.matthews@portarthurtx.gov" <calvin.matthews@portarthurtx.gov>; "jess.liao@portarthurtx.gov" <jess.liao@portarthurtx.gov>; "Hani Tohme" <tohmehani@yahoo.com> Cc "Brittany Stutes" <bstutes@allco.com>; "Keith Burrell" <kburrell@allco.com> Date 2/27/2025 8:48:26 AM Subject Re: Port Arthur WWTP-Bypass Pumping Change Order Correction below in red. Thank You, avidAut qa,vtaut Vice-President Division Manager—Heavy/Civil Lco P.O. Box 3684 Beaumont, Texas 77704 Ph: (409)860-4459 Fax: (409)860-3857 Email: bharrison©allco.com Original Message From "Brandon Harrison" <bharrison@allco.com> To "Rami.Abusheikh@freese.com" <Rami.Abusheikh@freese.com>; "calvin.matthews@portarthurtx.gov" <calvin.matthews@portarthurtx.gov>; "jess.liao@portarthurtx.gov" <jess.liao@portarthurtx.gov>; "Hani Tohme" <tohmehani@yahoo.com> Cc "Brittany Stutes" <bstutes@allco.com>; "Keith Burrell" <kburrell@allco.com> Date 2/26/2025 3:56:35 PM 2/3 l_i CO Design Build Construction Management General Contractors P.O. Box 3684, Beaumont,Texas 77704 Phone:409-860-4459 Fax:409-860-3857 Email:allco@allco.com August 30, 2024 Freese & Nichols 10497 Town& Country Way, Suite 500 Houston,TX 77024 Attn: Rami Abusheikh Re: City of Port Arthur WWTP Improvements Project Change Proposal—Bypass Main Wet Well Dear Mr. Abusheikh: Allco proposes the following change order in the amount of$151,348.00 to reconfigure and reroute the bypass system: DESCRIPTION/COST SUMMARY Allco is unable to utilize the existing gates at the wet well to isolate flows which would allow for install of the new gates, valves, etc.; In order to proceed with this work a new bypass system or configuration is required; critical work is being delayed until we are able to start work in the wet well See attached sketch for your reference;The existing bypass pumps will be utilized and the piping will be reconfigured/rerouted to the upstream wet well/manhole;The costs below includes the cost for the existing pumps, existing piping, and the additional piping required; After the gates are replaced, we will reinstall the piping to it original configuration We assumed a rental period of 1 month, but possibly could finish a week earlier; bypass costs can be adjusted if more or less The rental/fuel/maintenance cost per day is$2,966.67 per day which includes a night pump watch and fuel; deduct $1,000.00 per day if night pump watch is not required;deduct$465.50 per day if fuel is furnished by the City Allco makes no guarantee the proposed bypass set up will work as intended;the wet well/manhole we will be pumping out of is much smaller and may not have the capacity to handle all flows required especially during a high flow event Rain For Rent will provide detailed layout drawings upon approval of change order Time Extension-90 Calendar Days ITEM LABOR MATERIALS EQUIPMENT SUB MARKUP/OH TOTAL Bypass Piping-Mob/Install $5,614.00 $886.00 $4,825.00 $15,877.00 $4,081.00 $31,283.00 Bypass Piping- $4,432.00 $0.00 $3,150.00 $19,433.00 $4,053.00 $31,068.00 Demo/Reinstall to Original Bypass $8,865.00 $13,965.00 $0.00 $54,558.00 $11,609.00 $88,997.00 Rental/Fuel/Maintenance (30 Days) TOTAL $151,348.00 Please contact the undersigned if you have questions or issues regarding this matter. Respectfully, f Allco, LLC Brandon Harrison A ll Design Build Construction Management General Contractors P.O.Box 3684, Beaumont,Texas 77704 Phone:409-860-4459 Fax:409-860-3857 Email:allco@allco.com December 4, 2024 Freese& Nichols 10497 Town& Country Way, Suite 500 Houston,TX 77024 Attn: Rami Abusheikh Re: City of Port Arthur WWTP Improvements Project Change Proposal—Bypass Main Wet Well Addition Dear Mr.Abusheikh: Allco proposes the following change order in the amount of $40,463.00 to reconfigure the bypass, add an additional pump, and provide another suction from the two upstream manholes: DESCRIPTION/COST SUMMARY Allco is unable to utilize the existing gates at the wet well to isolate flows which would allow for install of the new gates and valves;A work directive was provided on 9/23/24 to address this matter, but the reconfigured bypass did not work as intended due to capacity and flow issues; As stated in the previous change order proposal,we could not guarantee the proposed reconfiguration would work and we raised these concerns on several occasions To potentially resolve this matter, we propose to add an additional pump and provide suction piping for two upstream manholes The cost below includes installation,teardown, rental,and maintenance of the additional pump and piping ONLY; the costs related to original work directive are still being incurred each day The rental/fuel/maintenance cost per day is$481.00per day which includes maintenance and fuel Allco makes no guarantee the proposed bypass set up will work as intended for reasons noted above and in previous proposals Please note that we are incurring critical delays at the MOLS until this issue is resolved; please consider this an urgent matter Time Extension-60 Calendar Days ITEM LABOR MATERIALS EQUIPMENT SUB MARKUP/OH TOTAL Bypass Piping-Mob/Install $1,773.00 $255.00 $3,150.00 $11,503.00 $2,502.00 $19,183.00 Bypass Piping-Teardown $886.00 $0.00 $1,575.00 $3,654.00 $917.00 $7,032.00 Bypass Rental/Fuel/Maint $2,659.00 $4,275.00 $0.00 $5,613.00 $1,883.00 $14,430.00 (30 Days) TOTAL $40,643.00 Please contact the undersigned if you have questions or issues regarding this matter. Respectfully, Ailco, LLC 5.4........_ Brandon Harrison (in•n/ s nrt rthu�r Texas INTEROFFICE MEMORANDUM Date: September 23,2024 To: Ronald Burton, City Manager. From: Calvin Matthews,P.E., Water Utilities Director, RE: Change Order for Bypass Pumping at Main Outfall Lift Station The Main Outfall Lift Station (MOLS), the influent lift station for the Main Wastewater Treatment Plant, has been identified as a critical operation per 01 35 00 Special Procedures. Part of the work required for the rehabilitation of the MOLS is the replacement of the wetwell sluice gates. The design of the work and the contract were based on the existing sluice gates being operable during this work. Due to delays in the project bidding,the conditions within the station have changed and at this time, the gates are inoperable. This has resulted in changed conditions for the work and the Contractor is requiring a change order to operate the bypass pumping required to proceed with the work. During this procedure,the influent to the station must be bypassed before the wetwell to allow workers to enter the well. This will require the suction piping of the existing emergency standby pumps to be relocated upstream of the wetwell and for the full flow to the facility to be handled by the diesel pumps. The estimated expenditure for this operation is expected to be approximately $160,000.00. At this time we expect this work will have to be funded by the General Fund, unless Council approves appropriate Capital Funding in the budget. I,Ronald Burton,hereby approve the Change Order to ALLCO LLC. for this work. i(k, NO. Ron Bu. .n,CPM City anager "Remember,we are here to serve the Citizens of Port Arthur" 3/14/2025 Subject: RE: [NON-CoPA] Main Outfall Lift Station--Bypass Pumping Issues From: "Calvin Matthews" <calvin.matthews@portarthurtx.gov> Sent: 7/15/2024 4:57:18 PM To: "Brandon Harrison" <bharrison@allco.com>; "matt.cartwright@freese.com" <Matt.Cartwright@freese.com>; "Rami Abusheikh" <Rami.Abusheikh@freese.com> CC: "Keith Burrell" <kburrell@allco.com>; "Mike Nunez" <mnunez@allco.com>; "tohmehani@yahoo.com" <tohmehani@yahoo.com>; "JESS LIAO" <jess.liao@portarthurtx.gov>; "Joe M. Wilson" <joe.wilson@awceng.com>; "Keith Zotzky" <keith.zotzky_@awceng.com> Caution: This is an external email and has a suspicious subject or content. Please take care when clicking links or opening attachments. We need to schedule a meeting and have Matt and Rami in this loop. We had discussed doing a short call tomorrow morning before Council but not sure if F&N would be available on such a short notice. We have the meeting at AWC tomorrow at 11 then we are free in the afternoon. Matt, do you and Rami have an opening tomorrow afternoon for a call on this subject tomorrow. Can you send out a call invite so we can find out about availability. Regards, Calvin Matthews P.E. Director of Water Utilities City of Port Arthur From: Brandon Harrison<bharrison@allco.com> Sent: Monday,July 15, 2024 3:03 PM To: Calvin Matthews<calvin.matthews@portarthurtx.gov>; tohmehani@yahoo.com;JESS LIAO <jess.liao@portarthurtx.gov>;Joe M. Wilson <joe.wilson@awceng.com>; Keith Zotzky <keith.zotzky_@awceng.com> Cc: Keith Burrell<kburrell@allco.com>; Mike Nunez<mnunez@allco.com> Subject: [NON-CoPA] Main Outfall Lift Station--Bypass Pumping Issues Calvin, See attached summary for your review. Per the Special Procedures phasing requirements, we are only supposed to bypass at the Main Outfall during certain events/time periods and we bid the job accordingly. There should be a minimum of one large pump and one small pump in operation right now. Pumps 1 and 3 are to be replaced then pumps 2 and 4. We installed the bypass system in January to perform the major tie-in work and we have left it in place to address emergency issues. It is not meant to be operational on a regular basis at this point and we have incurred substantial costs over this time period. We are willing to be responsible for the costs incurred through May (atleast 150k), but we are going to request compensation for the operational costs starting in June. The operational costs in June are $58,800.00 and July is looking worse. Only the two small pumps are operational in the wet well and they 1/2 I 3/14/2025 cannot keep up with anything beyond low flow events so the bypass pumps are regularly running now. We are only asking to be compensated for the additional bypass pumping when the bypass pumps are in operation. During standy/downtime we will not ask for monies even though we are being charged ever day they are on site. It would be our suggestion that the City repair one of the big pumps to minimize these costs going forward. Please let us know when the City would like to discuss this matter. Thank You, Vice-President Division Manager—Heavy/Civil P.O. Box 3684 Beaumont, Texas 77704 Ph: (409)860-4459 Fax: (409)860-3857 Email: bharrison©allco.com This email and its attachments may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of the City of Port Arthur. If you are not the intended recipient of this email and its attachments, you must take no action based upon them, nor must you copy or show them to anyone. Please reply to the sender if you believe you have received this email in error. 4 4 4 I I I 2/2 al