SOURCES SOUGHT
J -- Water Treatment/Storage Tank Cleaning for VA Las Vegas
- Notice Date
- 9/3/2025 10:56:32 AM
- Notice Type
- Sources Sought
- NAICS
- 561210
— Facilities Support Services
- Contracting Office
- 261-NETWORK CONTRACT OFFICE 21 (36C261) MATHER CA 95655 USA
- ZIP Code
- 95655
- Solicitation Number
- 36C26126Q0038
- Response Due
- 9/10/2025 1:00:00 PM
- Archive Date
- 11/09/2025
- Point of Contact
- Larry Facio, Contracting Officer, Phone: 916-923-4553
- E-Mail Address
-
Larry.Facio@va.gov
(Larry.Facio@va.gov)
- Awardee
- null
- Description
- This is a SOURCES SOUGHT ANNOUNCEMENT ONLY The intent of this Sources Sought Announcement is to assist in our decision-making process for services procurement. This is not a solicitation, nor request for quotes or proposals. Through the receipt of responses, this will enable a more precise type of procurement process. The Government is not obligated to, nor will it pay for or reimburse any costs associated with responding to this sources sought synopsis request. This notice shall not be construed as a commitment by the Government to issue a solicitation or ultimately award of a contract, nor does it restrict the Government to a particular acquisition approach. Any inquiries are to be made in writing by email to the point of contact, Larry Facio, Contracting Officer. Responses to this notice shall be sent by email to larry.facio@va.gov by the due date and time of 09/10/2025 by 1:00 p.m. (Pacific Time). Upon receipt of capabilities statement, Contracting Officer may request additional market research aid such as informal pricing. Place of Performance: VA Southern Nevada Healthcare System (VASNHS) 6900 North Pecos Rd, N. Las Vegas, NV 89086 DESCRIPTION OF SERVICES/GENERAL INFO 1.0. SCOPE OF WORK VA Southern Nevada Healthcare System (VASNHS) is contracting water treatment services as well as the cleaning of 4 water storage tanks that provide a complete service-oriented water treatment, sampling, disinfect/cleaning and test program that supplies steam, chilled water service, domestic, industrial water and heating water service loops which include a solar heating loop. This contract is specifically for all industrial systems and all 4 water storage tanks. Access to these systems is located VA Medical Center Buildings 1, 2, 5, & 6. The contractor shall supply a complete service oriented water treatment program. A major component of maintaining equipment involves chemical treatment, real time monitoring, and water sampling. The contractor shall provide trained, qualified and certified personnel to perform required tasks. In addition, contractor shall provide all the necessary equipment, tools, materials, supervision, repair, replacement, and other services necessary to perform water treatment services at VASNHS facilities as defined in this Statement of Work (SOW) for Government-owned equipment. Services shall be provided at the VASNHS medical center, located at 6900 North Pecos Road, North Las Vegas, NV 89086. The contractor shall perform in accordance with all federal, state, and local regulations. Specific Requirements for Industrial Water: 1.1.2 The water treatment program shall service steam boilers, chillers, chilled water system, open condenser water loops, 9 closed hot water heating loops, a refrigeration condenser loop, and a Glycol energy recovery loop, along with all associated piping for the equipment listed below. This list is not all inclusive of the Government owned equipment that may require monitoring, testing, or other services associated with the overall treatment program. Contractor is to supply all equipment and services for real time monitoring of HVAC Cooling Tower open loop. Chilled Water: Global GTCHB2234F2615PC Side-stream Filter with MS30ES20 filter cartridges. Cooling Tower (Condenser Water): In-Line, Real-Time monitoring system controlling 3 LMI metering pumps and condenser water bleed valve. Puroflux PF64-060(B) centrifugal separator Glycol: Neptune 141-GFS251A.88 Steam/Condensate: The steam system has three LMI chemical metering pumps for the Boiler treatment, sulfite, phosphate and amine . Feed rates are set manually based on feed water / condensate testing by the operator. Each boiler is equipped with a pot feeder for start-up/emergency treatment. The other systems are manually dosed with pot feeders. 1.2 FREQUENCY OF SERVICE & TEST REQUIREMENTS 1.2.1. The following charts denote the frequency of service and testing requirements. 1.2.1.1 Specific System: Cooling Tower System, Open Loop, Building 2. Control Parameters Analytical Method Target Range Service Report Test Frequency pH, Makeup Water PH meter Record Weekly pH, System Water PH Meter 8.0-9.0 Weekly Conductivity, Makeup Conductivity Meter Record Weekly Conductivity, System Water Conductivity Meter 2400 ppm TDS Weekly Corrosion Inhibitor Colorimetry 15 30 ppm Weekly Calcium, Makeup Water DR890-PRG29 Record Weekly Calcium, System Water DR890-PRG29 <100 ppm Weekly Steel Corrosion Inhibitor (Active Polymer) DR890 PRG181 6-8ppm Weekly Iron DR890-PRG33 <1.0 ppm Weekly Free Halogen (Chlorine) Biocide DR890-PRG 90 0.05-0.5 ppm Weekly Bacteria: Total Heterotrophic Dip-slides 10^3-10^4 cfu/ml Weekly Bacteria: Sulphate Reducing Analytical Lab Sample ND Semi-Annual Bacteria: Iron Related Analytical Lab Sample ND Semi-Annual Steel Corrosion Inhibitor (Specify) Coupons <1.0 mpy Semi-Annual Copper Corrosion Inhibitor (Specify) Coupons <0.5 mpy Semi-Annual ND = non detect Note: Include tests for control parameters, from Program Calculation Sheet, Appendix A 1.2.1.2 Specific System: Chilled Water (Closed), Refrigerant Condenser Loop, Glycol Energy Recovery System, and Hot Closed Systems, Buildings 1, 2, 5, 6 . See Appendix D & E Control Parameters Analytical Method Target Range Service Report Test Frequency Corrosion Inhibitor (Nitrite) Titration 600-800 ppm Weekly pH PH Meter <10.5 Weekly Monthly for hot Conductivity Conductivity Meter Record Weekly Monthly for hot Steel Corrosion (Specify) Coupons <1.0 mpy Quarterly Copper Corrosion (Specify) Coupons <1.0 mpy Quarterly Iron (Total) DR890-PRG33 <2.0 ppm Weekly Monthly for hot Copper (Total) DR890-PRG22 <2.0 ppm Weekly Monthly for hot Bacteria: Total Heterotrophic Dip-slide <10^3 cfu/ml Monthly Bacteria: Sulfate Reducing Analytical Lab Sample ND Semi-annual Bacteria: Iron Related Analytical Lab Sample ND Semi-annual Bacteria: Nitrifying Analytical Lab Sample Minimal Semi-annual Bacteria: Denitrifying Analytical Lab Sample Minimal Semi-annual ND = non detect Note: Include tests for control parameters, from Program Calculation Sheet, Appendix A 1.2.1.3 Specific System: Steam Boiler System, Building 2. Control Parameters Analytical Method Target Range Service Report Test Frequency Makeup Water pH PH meter Record Weekly Makeup Water Conductivity Conductivity Meter Record Weekly Makeup Water - Hardness Drop Test Record Weekly Makeup Water Total Alkalinity DR890-PRG29 Record Weekly Feedwater Hardness Drop Test 0-2 ppm Weekly Feedwater Iron DR890-PRG33 <1.0 ppm Weekly Feedwater pH PH meter 8.3-10.5 Weekly Feedwater Conductivity Conductivity Meter 300 µmhos Weekly Feedwater P Alkalinity Titration Record Weekly Feedwater M Alkalinity Titration Record Weekly Feedwater Boiler Treatment DR890-PRG181 20-25ppm Weekly Boiler P Alkalinity Titration <300 Weekly Boiler M Alkalinity Titration <100 Weekly Boiler Oxygen scavenger Residual Sulfite low level test kit 30-60 ppm Weekly Boiler Conductivity On-Line Conductivity Meter <4500 µmhos Weekly Boiler Neutralized Conductivity DR890-PRG29 Boiler iron DR890-PRG33 <1.0 ppm Weekly Condensate - Conductivity Conductivity Meter <100 µmhos Weekly Condensate pH PH meter 8.0-10.0 Weekly Condensate Hardness Drop Test 0-1 ppm Weekly Condensate Iron DR890-PRG33 <1.0 ppm Weekly ND = non detect Note: Include tests for control parameters, from Program Calculation Sheet, Appendix A 1.2.1.4 Industrial Water Systems System Location Analytical Test Method Service Report Test Frequency Water Tank #1 Water Tank Yard A, B, C, E, F Monthly Water Tank #3 Water Tank Yard A, B, C, E, F Monthly Water Tank #4 Water Tank Yard A, B, C, E, F Monthly Cooling Towers BLD 2 A, B, C, D,E, F Weekly Industrial Water System Bldg 2, Rm 2-110 A, B, C, D, E Monthly 1.2.1.5 Industrial Water System Analytical Test Method: A. Chlorine residual, Free/Total; DPD Colorimeter USEPA (Hach Field Test) B. Conductivity / TDS; Ultrameter II Conductivity Meter C. PH; Ultrameter II PH Meter. D. Hardness; Drop Test, Titration E. Water Temperature, Ultrameter II, or Contact Thermometer. F. Dip-slide, Heterotrophic Bacteria, & Mold Indicating 1.2.2. METHOD OF TREATMENT 1.2.2.1. The contractor shall provide water treatment products to prevent scale, corrosion, fouling and microbiological fouling within all heating, chilled, and cooling water systems. 1.2.2.2. Water treatments shall be performed as indicated by testing on each system in all buildings. 1.2.2.3 Sodium Nitrite, or other corrosion inhibitor, applied to closed loops shall always include Leak Detection Dye. 1.2.2.4. Evaluate the flows, pressure and Total Dissolved Solids (TDS), weekly. 1.2.2.5. Cooling towers shall be treated by acid or soft water blend control. See Appendix B for system. 1.2.2.6 Delivery of all water treatment chemicals to points-of use shall be placed on spill containment pallets. It is the contractor s responsibility to ensure all safety precautions for chemicals have been taken. 1.2.2.7 Chemical Tanks - The tanks MUST provide the following features: Tank level indicators to determine chemical levels. Flooded suction inlets for chemical pumps to ensure pumps do not loose prime, or provide self-priming pumps. Containment basins capable of 150% of the tank storage capacity. Tank sizing shall be appropriate for chemical use; chemical shall be a minimum quantity of 31 days without replenishment. Chemical labels clearly visible on outside of tank. SDS sheets attached to tank container. Tank to tank chemical transfer preferred, when pumping from drums, empty drums shall be removed from VAMC property within 3 working days. Full spill containment. 1.2.2.7.1 Liquid chemicals shall be stored on site in Mini Porta Feed or equal containers. Containers shall be stainless steel or double walled polyethylene tanks as appropriate. Containers shall be supplied and maintained by the water treatment contractor. 1.2.2.7.2 All chemicals shall be directly injected in to their respective loops via corporation stop injectors whenever provided. Pot feeders are available at the boilers (start-up), and all closed loops. 1.2.3. TESTS 1.2.3.1. Routine Testing. The routine Cooling Tower testing to be performed according to the chart in 1.2.1.1, Closed Loops according to 1.2.1.2 and Boiler testing performed according to chart in 1.2.1.3. which will provide results showing:. Total Hardness, P Alkalinity, M Alkalinity, OH Alkalinity, Total Alkalinity, pH, Conductivity/TDS, Silica, Phosphates/orthophosphates, Nitrite, Calcium Hardness, Free Chlorine, Sulfite, Iron and Copper. Routine testing by the Contractor shall also provide services as listed in Appendix B and C. The contractor shall submit documentation of results and recommendations accurately and within required timeframe in accordance with Paragraph 1.2.10.1. 1.2.3.2. Weekly water tests and treatment for each operating system in building 2 shall provide: Boilers and Steam: Orthophosphate (PO4) (Operating Boiler s water) Sodium Sulfite (SO3) (Operating Boilers) P-Alkalinity (Operating Boiler s water) Conductivity (µmhos/cm) (Operating Boiler s water and Feed Water) Total Hardness, pH, iron, and conductivity (Feed Water, Condensate, High Pressure Drain, Condensate from Bldg 1. Add neutralizing amine blend to treatment tank, for injection into steam header outlet piping. Determine gallons/day feed rate for sodium polymethacrylate* and add to proper tank with proper adjustments to feed rate. (*or recommended chemical.) Add sodium sulfite in chemical feed tank for feedwater treatment. Add sodium hexametaphosphate*, caustic flake*, and adjustments for feed rates to boiler chemical feed tanks. ( *or recommended chemical). Sodium Nitrite added to (Hot & Chilled) closed loops to provide protection of metal piping and maintain residual. Cooling Tower / Open Condenser Loop: Organophosphonate Oxidizing and Non-Oxidizing Biocides 1.2.4. STANDARDS. The contractor shall inspect, monitor and document the cooling water characteristics for a stable condition. Conductivity Total Dissolved Solids (TDS) range shall be maintained within 2000 to 2500 µmhos/cm. The contractor shall conduct weekly total bacteria count tests on cooling tower water samples utilizing a dip-slide culture test. ORP measurements will be taken on condenser water to verify relationship between Biocide effective ness and corrosion of tower metal, maintain range of 250 to 450 mV. The contractor shall use test results to change or optimize the biocide feed rates and the timing of the biocide feed applications to maintain bacteria counts at 10,000 CFU/mL or less. The bacteria count, determined by dip-slide culture, shall be reported weekly on the service trip report and provided accordingly to 1.2.10.1. 1.2.4.1. The following standards apply to each operating system in building 2 and shall be on contractor s report. The contractor shall maintain systems within the standards listed in paragraph 1.2.4: Boilers Phosphate (PO4) = 15 25 PPM P-Alkalinity (CaCO3) = 300 600 PPM Sulfite (SO3) = 30 60 PPM Neutralized Conductivity (µmhos/cm): 3000-3500 Boiler PH = 10.5 12.0 PPM Condensate: PH = 8.3 9.2 SU Conductivity= < 100 µmhos Sodium Softeners: (Hardness Maximum) 1 PPM or 7.1 grains Low Temperature Hot Water Heat (HWH) the following standards apply: Nitrite = 1000-1500 ppm in nitrite. Test and record pH, conductivity, iron, copper. Chilled Water the following standards apply: Nitrite = 600-800 ppm as nitrite. Test and record pH, conductivity, iron, copper. Contractor shall clean and replace Side-Stream filters as necessary. Open Condenser Loop (Cooling Towers) the following standards apply: Conductivity= 3200 µmhos / TDS= 2400 ppm Organophosphonate = 15 30 ppm, PTSA trace = 160 170 Biocide = .05 0.5 ppm 1.2.5. MONITORING. The contractor shall inspect, monitor and document each system listed in Appendix B, C, D, & E. to measure effectiveness of the treatment program. The contractor shall inspect, monitor and document the below mentioned conditions. Results shall be documented IAW Section 1.2.10 and provided to COR. Scale formation onto waterside surfaces Corrosion of waterside metal surfaces Slime producing bacteria within the bulk water (dip-slide test) Make-up water rate Bleed-off/Blowdown rate Chemical treatment feed rates 1.2.6. INSPECTIONS 1.2.6.1. The contractor shall perform weekly inspections of the cooling tower, boilers and heat exchange systems to include: chemical feed equipment, chemical feed point locations, and sampling locations. This shall include weekly inspections of the side-stream filter installed in the condenser water system . Adjustments shall be made to backwash timing and frequency. Results and recommendations shall be documented IAW Section 1.2.10.1 and provided to COR. 1.2.6.2. The contractor shall conduct internal and external inspections of steam generation equipment during seasonal shutdowns and perform external inspections when the steam generation equipment is on-line. 1.2.6.3. The contractor shall inspect and document all waterside surfaces of opened heat exchangers and chillers for proper water treatment according to the type of system, its size and location . Inspection results shall include: the tube sheet, end bells, water box, and the end of the tubes. 1.2.7. REVIEWS AND ANALYSIS. 1.2.7.1. The contractor shall conduct a review and analysis of cooling and heating system operating logs and cooling tower including side-stream filters, heat exchangers, and closed system water treatment testing logs. The Contractor shall maintain an electronic data-site of all information. Trend analysis data generated using software shall be included in the Quarterly Report IAW 1.2.10. The contractor shall identify, document correctly, and submit to the COR, quarterly, any potential problem areas and assess trends of chemical consumption, costs, and residuals. 1.2.7.2. The contractor shall document results and recommendations for purposes of long-range planning. Documentation shall be IAW Section 1.2.10.3 and provided to COR. 1.2.7.3. The contractor shall provide actual values of: Bleed-off/Blowdown, Make-up, Drift, Cycles of concentration, and Chemical Feed Rates. The contractor shall document and compare values to theoretical values, and industry standards. The Contractor shall make recommendations to the government to optimize operations. All final decisions are by the government. Documentation shall be IAW Section 1.2.10.3. 1.2.7.4. The contractor shall document the collection of and analyze scale and other deposits found in the system. Results and recommendations shall be IAW Section 1.2.10.3 and provided to COR. 1.2.7.5. Condensate Quality Profile. A Quality Profile shall be created and documented for each condensate stream. Information and targeted performance guidelines shall include: pH (properly cooled) 8.0 9.0 Iron <0.10 ppm Conductivity < 50 µmhos/cm This data shall be reported quarterly IAW Section 1.2.10.2, report shall include all corrective action taken and provided to COR. 1.2.8. STUDIES. The contractor shall perform and document the following studies: 1.2.8.1. Corrosion Studies. Documented Corrosion studies shall include maintain continuous exposure periods for 90 days, conduct coupon analysis, review results and changes in the water treatment program to maintain acceptable Cooling Technology Institute (CTI) standards for Mild Steel Corrosion Rate (<5.00 mpy) and Copper Corrosion Rate (<.50 mpy). Boiler and heat exchange systems shall be maintained IAW American Society of Mechanical Engineers (ASME) standards. 1.2.8.2. Annual Flow Rate and Elusion Studies. The contractor shall provide flow rate and elusion studies on ion exchange equipment to evaluate: Operation, Mechanical Status and Efficiency. 1.2.9. BOILER FEEDWATER (BFW) 1.2.9.1. The contractor shall evaluate the overall Boiler Feed water (BFW) program for compliance with American Society of Mechanical Engineers (ASME) and Cooling Technology Institute (CTI) control parameters and operational procedures, Federal and State of Nevada Environmental Protection Agency regulations and environmental compliance issues. The contractor shall inform the government orally and in writing quarterly and annually of all compliance problems associated with the operation of the industrial water treatment program. 1.2.9.2. Evaluate and report, the boiler feed water characteristics to establish siteline data within the first month of contract. 1.2.9.3. Maximum cycles of concentration (no cycles to exceed 20) sited on the following ASME Guidelines: The contractor shall calibrate Government chemical feed and control equipment to maintain water chemistry within industry specifications. Calibration of all monitoring equipment shall be performed accurately and at specified frequency. The calibration results shall be documented and available to COR as requested. 1.2.10. REPORTS AND OTHER DOCUMENTS. The contractor shall send a copy of reports to the Contracting Officer Representative (COR). All urgent problems regarding maintenance of water treatment parameters shall be discussed with the COR on the day of discovery referenced in 1.3.5.2. All reports shall be submitted electronically to the Facility COR. 1.2.10.1. Weekly reports. The contractor shall prepare a written report each week. This report shall describe the results of routine tests (Section 1.2.3.1), the results of system inspections (Section 1.2.6). The reports shall contain recommendations and written proposed corrective actions. The contractor shall review the report with the COR/CO within seven (7) calendar days of data collection. 1.2.10.2. Quarterly reports. The contractor shall prepare a quarterly written report, accurately and on time, due by the 15th of Jan, Apr, Jul, and Oct. This report shall describe conditions of each water system. The reports shall include those items discussed in Section 1.2.5 and the effectiveness of the treatment program and any areas of concern/problems incurred with recommendations for correction. The report shall include all chemical usage (Volume) by the contractor. The contractor shall conduct meeting with the COR and go over the Quarterly report. 1.2.10.3. Annual Reports. An annual report shall be compiled and submitted by the last day of the 11th month of each contract year, for each industrial water system. Each report shall describe sampled trends throughout the year, start and end conditions, and those items identified in Sections 1.2.7 through 1.2.9. The report shall include total yearly chemical usage by the contractor. The contractor shall meet with the COR and affected Contracting Officer and go over the Annual report. II. SERVICES SUMMARY. 2.1. � � � � Performance Requirements Summary 2.1.2 Summary Table: Performance Indicator Performance Standard Performance Threshold Method Type of Surveillance Reference Cooling Tower Treatment Maintain Treatment levels Maintain levels in accordance with parameters in Table 1.2.1.1 to a 90% accomplishment Weekly testing 1.2.4 Chilled Water System Treatment Maintain Treatment levels Maintain levels in accordance with parameters in Table 1.2.1.2 to a 90% accomplishment Weekly testing 1.2.4.1 Closed Loop Treatment Maintain Treatment levels, perform coupon checks Maintain levels in accordance with parameters in Table 1.2.1.2 to a 90% accomplishment Monthly testing. Quarterly coupon change-out, submitted for analysis 1.2.4.1 Boiler Water Treatment Maintain Treatment levels, Recommend changes to chemical pumps and blowdown settings Maintain levels in accordance with parameters in Table 1.2.1.3 to a 90% accomplishment Weekly testing 1.2.4.1 Records and Report Management Reports filled out timely and delivered to Utility Supervisor or COR Weekly within 7 days of collection. Monthly Within 7 days of collection. Quarterly on time. Annually Before end of contract. To a 100% accomplishment Meetings with COR, one on one. 1.2.10 Inspections Inspect Cooling Towers, Boilers, and Heat Exchangers during maintenance periods Check for indications of corrosion, under-treatment, over-treatment. Make recommendations that show results. COR to attend inspections 1.2.6 Inventory Management Sufficient testing and treatment materials on site to ensure plant condition not affected All treatment levels in all systems maintained to a 90% accomplishment. Daily checks by COR, contractor notified by email of low levels or missing items 1.0 Appendix B *The procedures set forth in the Inspection of Services Clause will be used to remedy all deficiencies. The re-performance times will be sited upon sensitivity of the issue. ORP Oxidation Reduction Potential, measurement of the tendency of a chemical substance to oxidize or reduce another chemical substance. Has a relationship to Biocide reactions. Welch-Allyn fiber optic inspection. A high-level inspection system that examines tube bundles in great detail to determine if gross deficiencies in water treatment exist. High Temperature Hot Water (HTHW). Heating system water that is generally circulated at temperatures from 320 to 440 degrees. Condensate. Condensed water resulting from the removal latent heat from steam. Deaerator Oxygen Analysis. A study to determine the oxygen removal efficiency of the deaerator. The collected data assists in predicting the potential for oxygen related problems in the feedwater and boiler system(s). Embrittlement Analysis. A study of the embrittling characteristics of the boiler water. Controlled Limits. Operating parameters (boundaries) Elution Studies on Ion Exchange Equipment. A series of tests conducted on the softeners, dealkalizers or demineralizers to determine the efficiency of the regeneration cycle. The collected data is evaluated by drawing an elution curve. The information reveals the regenerate concentrations at all stages of the cycle. Steam Purity Analysis. A study monitoring the quality of the steam being produced to determine the steam purity. Corrosion Studies on Feedwater/Condensate Systems. A study to determine the corrosion rates of the pre-boiler systems. The collected data provides information relating to the corrosion protection provided by the chemical treatment program. Quantitative Deposit Analysis. A study to determine the composition of a deposit. Resin Analysis. A study generally performed to determine the efficiency of zeolite resin in water. Appendix B Cooling tower tonnage, Building 2 Building Number Capacity in Approx Tons Sidestream Filters Tower Treatment Operation 2 6,500 N/A Acid or Softwater Blend Year Round HVAC main cooling tower open loop The water treatment program shall include all cooling tower systems and all water pre-treatment equipment. The water treatment program shall include all chemical products, equipment, tools, supervision, professional consulting services, and any additional items necessary to perform the services as specified in the SOW. The cooling towers consist of five cells. The water treatment program shall provide control and remote monitoring capability for the following: Controller capable of the following features: Monitor system conductivity Monitor system pH Monitor system ORP, Oxidation Reduction Potential Flow switch Chemical levels in chemical feed tanks/containers Monitor makeup water use (via contacting head water meter) Monitor blow down water use (via contacting head water meter) Receive 4-20mA inputs and provide direct control of system parameters based on input signals. Provide data logging features, with download capability to a PC via Ethernet or wireless network Real-Time monitoring of scale/corrosion inhibitor levels in the cooling tower systems whenever they are running. Real-Time monitor for both planktonic (free flowing) and sessile (attached) microbiological activity in re-circulating cooling water systems. Multiple controller inputs Multiple controller outputs Online corrosion monitors to log corrosion data Real-Time so that immediate chemistry changes can be made. Appendix C Building 2 Systems, and Equipment Boilers: Three natural gas fired, 25,000 pound per hour, fire tube, 100 PSIG Domestic Water: 3 sodium zeolite softeners. 3 charcoal bed filters. Condensate Return: One condensate receiver Deaerators: One 20,000 pound per hour, spray and tray type Feedwater Pumps: Three electric driven pumps Boiler Chemicals Currently Used: Sodium Bisulfite Sodium Sulfate Cyclohexylamine Diethylethanolamine Morpholine Potassuim Bisulfite Cobalt Sulfate Methanol Sodium Hydroxide Glutaraldehyde Alkaline Liquid Bromine HVAC HOT WATER SYSTEM (Closed Loop) Hot water system for heating and reheat of HVAC systems. Water is continuously circulated in a closed loop through heat exchangers to maintained temperature set-point. Building 1- five loops, building 2, Boiler room- one loop, building 5- one loop, Building 6- one steam heated loop and one solar heated loop. Systems must be closely monitored and sampled at least monthly; corrosion indicator coupons examined every 90 days. Water treatment shall be on an as needed basis to control any corrosion. Appendix D Building 1,2, 5 & 6 Systems and Equipment 1. HVAC HOT WATER SYSTEM (Closed Loop) Hot water system for heating and reheat of HVAC systems. Water is continuously circulated in a closed loop through heat exchangers to maintained temperature set point. Building 1- Four Loops: D&T Basement; Room BD-423 D&T, Ambulatory Basement; BB-208, Admin Basement; BD-160, MH Basement; BE-101, Emergency Department extension (roof-top). Building 2 one loop, Boiler Room, building 5- one loop, basement, building 6- one loop (steam heated) & one loop (solar heated), room to be determined (currently under construction). Systems must be closely monitored and sampled. Water treatment shall be on an as needed basis to control any corrosion and maintain proper residual. 2. REFRIGERANT CONDENSER WATER SYSTEM (Closed Loop) Chilled water system for cooling the condenser water for freezers, and refrigerators. Water is continuously circulated in a closed loop through plate/frame heat exchangers to maintained temperature set point. Building 1, Fourth floor. System must be closely monitored and sampled. Water treatment shall be on an as needed basis to control any corrosion. 3. HVAC ENERGY RECOVERY SYSTEM (GLYCOL LOOP, 30%) The glycol and water run-around coil system are an energy recovery system for the HVAC air handling units located in Building 1, on the fourth floor and the roof. All the individual water systems are combined into a single fill and chemical addition location. System shall be monitored, tested, and the water sampled to insure proper operation in accordance with manufacturers recommendations. All consumable products and supplies for this system shall be monitored, supplied, delivered and installed by the vendor. 4.HVAC SOLAR ENERGY HEATING SYSTEM The Solar Energy Heating System for Building 6 is designed to capture heat from solar panels on the roof and use that heat through the closed loop system to heat up, directly or augment, the building heating/re-heat system. The solar heating system is integrated with the steam heating system utilizing the same circulating pumps and the same heat exchangers. Treatment must be sufficient in chemical nature to provide corrosion inhibitor to all piping, and freeze protection to the exposed panels/piping in colder months. System shall be monitored, tested, and the water sampled to insure proper operation in accordance with manufacturers recommendations. All consumable products and supplies for this system shall be monitored, supplied, delivered and installed by the vendor. Appendix E Chilled Water System BUILDING SYSTEM Operation Frequency Side Filter 2 Chilled Water, Closed Loop Five 1300-ton chillers Year-round Monthly Yes Water Storage Tanks The Potable water storage tank will have a maintenance service accomplished annually, and the Industrial water storage tank will have a maintenance service accomplished every three years. The Contractor shall provide all labor, tools, supervision, and equipment necessary to complete this project. All the associated equipment is located at the VA facilities Water Storage Tank area and Central Energy Plant Building #2 at the Veteran s Hospital on 6900 North Pecos Rd, North Las Vegas, Nevada. SPECIFIC REQUIREMENTS: Water Storage Tanks (1ea. Potable water and 3ea. Industrial water total of 4ea. tanks) Manufacturer: Storage Product Engineering Model: 7013 WT Storage Capacity: 360,000 gallons This service contract is to clean and disinfect the water tanks according to American Water Works Association (AWWA) standards for disinfection process. Details of maintenance service are listed below. The contractor must minimize interruption of the water system to the medical center prior and during the service contract. If lengthy water systems service interruptions are needed, the interruption has to be scheduled two weeks prior to the start of the job. Furthermore, all interruptions are subject to approval by the Engineer Service Chief. The contractor must be authorized and approved to work, service, and make proper recommendations to resolve discrepancies with the Water Storage Tanks and associated components as recommended by manufacturer s recommendation as well as meet local and federal health standards and requirements. Lastly, the contractor will provide detailed documentation and cleaning certifications for the Water Storage Tank to suffice the annual requirements. This data will be provided to the Energy Plant supervisor or designee. Tank Cleaning and chlorination process according to AWWA: The Contractor shall provide all labor, tools, supervision, and equipment necessary to complete this project. Methods of Chlorination Three methods of chlorination are explained in this standard. Typically, only one method will be used for a given storage-facility disinfection, but combinations of the methods may be used. The three methods are (1) chlorination of the full storage facility such that, at the end of the appropriate...
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