Item 05 - Ullrich Water Treatment Plant Inherently Safer Disinfection Conversion — original pdf

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Item 5 Water & Wastewater Commission: October 14, 2026 Council: October 22, 2026 Posting Language ..Title Recommend approval to authorize a contract for construction services for the Ullrich Water Treatment Plant Inherently Safer Disinfection Conversion for Austin Water with MGC Contractors in the amount of $81,555,085 plus a $8,155,509 contingency for a total contract amount not to exceed $89,710,594. Funding: $89,710,594 is available in the Capital Budget of Austin Water. ..Body Lead Department Austin Financial Services. Managing Department Austin Capital Delivery Services. Fiscal Note Funding is available in the Capital Budget of Austin Water. Procurement Language: Austin Financial Services issued a Competitive Sealed Proposal solicitation CSP CLMB344 for these services. The solicitation was issued on April 27, 2026, and closed on July 23, 2026. The recommended contractor submitted the only responsive offer. A complete solicitation package, including a log of offer received, is available for viewing on the City’s website. This information can currently be found at: https://financeonline.austintexas.gov/afo/account_services/solicitation/solicitation_details.cfm?sid=140457. MBE / WBE: This contract will be awarded in compliance with the City Code Chapter 2-9A (Minority-Owned and Women- Owned Business Enterprise Procurement Program) by meeting the goals with 10.54% MBE and 2.02% WBE participation. Council Committee, Boards and Commission Action: October 14, 2026 – To be reviewed by the Water and Wastewater Commission. Additional Backup Information: Ullrich Water Treatment Plant was commissioned in 1969 and supplies a large portion of potable water to the City of Austin. Ullrich Water Treatment Plant currently uses gaseous chlorine and anhydrous ammonia disinfection systems, which requires the bulk delivery, storage and handling of these hazardous chemicals. This project is intended to convert from gaseous chlorine and anhydrous ammonia to on-site generation of sodium hypochlorite (OSGSH) and liquid ammonium sulfate (LAS), respectively, which are both inherently safer technologies for water treatment disinfection. The OSGSH system will use electrolysis to convert sodium chloride (salt) and water into 0.8% sodium hypochlorite. The LAS system will store and feed ammonia in a liquid, non-hazardous form. This project will eliminate the need for the use of gaseous chlorine and anhydrous ammonia for disinfection, representing a major safety improvement for the City and the surrounding community. A critical component of this project is the need to maintain operation of the plant, including disinfection processes, throughout these improvements. A temporary sodium hypochlorite storage and feed system will be utilized while the gaseous chlorine system is demolished and replaced with the OSGSH system. Due to the potential for unforeseen conditions, a 10% contingency in funding has been included to cover any unforeseen construction costs associated with the project and to allow for the expeditious processing of any change orders. By authorizing the additional contingency funding, Council is authorizing any change orders within the contingency amount.  Item 5 Water & Wastewater Commission: October 14, 2026 Council: October 22, 2026 This project will occur in a continuously operating water treatment plant but will work to minimize production interruptions during construction and any impact on customer service. The project does not currently expect any significant plant shutdowns that would negatively impact on customer service. There is no traffic impact on the community, as the project is with in Ullrich Water Treatment Plant. If the RCA is not approved, it would delay the elimination of gaseous chlorine and anhydrous ammonia usage for disinfection and the conversion to a new, safer form of disinfection. The contract allows 840 calendar days for completion of this project. This project is located within zip code 78746 District 8. CLMB344 - Ullrich WTP Inherently Safer Disinfection Conversion Project Map CIP ID 5335.008 Item 05 City of Austin Council Meeting Backup: October 22, 2026 CP Calculator Compliance Plan Verification PROJECT GOALS OR SUBGOALS MBE (use only if MBE/WBE goal) AFRICAN AMERICAN HISPANIC AMERICAN NATIVE/ASIAN AMERICAN WBE % 1.33% 3.31% 0.78% 1.30% Bidder: Sol#: Project Name: MGC Contractors, Inc. CLMB344 Ullrich WTP Inherently Safer Disinfection Conversion $80,343,085.00 Base Bid Amount SUBGOALS: PROPOSED PARTICIPATION File ID: 26-2630 Item 05 AFRICAN AMERICAN HISPANIC NATIVE/ASIAN AMERICAN WBE NON-CERTIFIED Total Subcontractor Participation Bidder (Own Participation minus Subs) TOTAL CP Summary CVI Development, LLC Zye Industrial Ltd. KLP Commercial, LLC / KLP Construction Supply 5.04% 4.65% 0.85% 2.02% 41.32% 53.88% 46.12% 100.00% $4,047,278.00 $3,733,503.00 $685,750.00 $1,619,117.73 $33,199,673.66 $43,285,322.39 $37,057,762.61 $80,343,085.00 INDIVIDUAL SUBCONTRACTORS PARTICIPATION $4,047,278.00 $4,047,278.00 AA HIS N/A $3,733,503.00 $3,733,503.00 $685,750.00 $685,750.00 Cert Y/N? Comm Code(s) & Description(s) 5.04% 5.04% 4.65% 4.65% 0.85% 0.85% Y Y Y 91430 Concrete 91438 Electrical 28554 Lighting Fixtures, Indoor: All Kinds and Parts (In Guardian Industrial Supply, LLC WBE $1,473,022.73 1.83% Y 65900 Pipe And Tubing Fittings Kristy Barnes / BMB Industrial, LLC Huband-Mantor Construction, Inc. T Morales Company Electric & Controls Ltd Alpha Paving Industries, LLC Clean Management Environmental Group, Inc. Coating & Specialties Solutions, LLC AK Fuquay Construction, LLC Maldonado Nursery & Landscaping, Inc. Liner Technologies, Inc. / Flexi-Liner Corporation VCG Southern Holdings LLC / Villarreal Civil Group Humbero Yair Esquivel / Western Wrap Insulation WBE NON NON NON NON NON NON NON NON NON NON $146,095.00 $1,619,117.73 $16,053,443.00 $15,114,102.00 $110,698.56 $95,378.42 $998,800.00 $58,395.00 $71,392.18 $141,585.00 $498,462.00 $57,417.50 $33,199,673.66 0.18% 2.02% 19.98% 18.81% 0.14% 0.12% 1.24% 0.07% 0.09% 0.18% 0.62% 0.07% 41.32% ALL SUBCONTRACTORS TOTAL $43,285,322.39 53.88% BIDDER'S OWN PARTICIPATION IN BASE BID (LESS AY AMOUNT SUBCONTRACTED): TOTAL PARTICIPATION $80,343,085.00 100.00% MGC Contractors, Inc. $37,057,762.61 46.12% 28512 Electrical Equipment And Supplies (Except Cable And Wire) 90930 Building Construction, (Not Otherwise Classified) 91438 Electrical 21055 Paving and Stepping Blocks 92678 Remediation Services, Environmental / 92600 Environmental And Ecological Services 6301230 Paint, Coating, Protective 98814 Erosion Control 79050 Sod, Grass / 79070 Top Soil and Fill Dirt 8304440 Liners, Tank, Polyethylene, Heavy Duty 90976 Site Work 01078 Pipe and Tubing Insulation, All Types Y N N N N N N N N N N