36C24219Q0319-001.docx

A.3 SCOPE OF WORK

A.3.1 GENERAL

a) The Buffalo VA Medical Center has a requirement for the provision of water treatment systems and support services to chemically treat chilled water and cooling towers for Legionella prevention in accordance with section 7.2 off ASHRAE Standard 188-2015 (Legionellosis: Risk Management for Building Water Systems) and boiler systems to maintain water conditioning at the Buffalo VA Medical Center 3495 Bailey Avenue, Buffalo NY 14215 from 04/01/2019 through 03/31/2020 to include four option years. Support services under this service agreement shall include the installation and maintenance of pumps and controllers for all systems listed in this purchase order, provide required chemicals for the systems, water testing and system disinfections. All labor, parts and travel expenses shall be included in the cost of this service agreement

A.3.1.1 SYSTEMS TO BE SERVICED

a) This service agreement shall cover the following systems located at the Buffalo VA Medical Center:

i. Three boiler systems

a. Three (3) cleaver brooks 385HP, 30,000lb/hr. 120 psig operating pressure water tube boilers

b. One (1) cleaver brooks 17,250lb/hr 120 psig operating pressure fire tube boiler

c. 1,600 kgal/year annual water usage

ii. Two chilled water systems consisting of four chillers

iii. Five condenser water systems consisting of six cooling towers

a. Building 1 chiller water system Runs Approximately March through November One (1) York YK 850 ton centrifugal chiller One (1) York 500 ton centrifugal chiller Two (2) Evapco cooling towers Model #LSTA10-181 One (1) Evapco cooling tower Model #LSTA10-324 One (1) Closed loop chilled water system Approximately 26,600 gal.

Two (2) Condenser water loops

b. Building 20 Chilled water system Approximately March through November Two (2) Trane 335 ton centrifugal chillers Two (2) Evapco cooling towers Model # LSTA10-121T One (1) Evapco cooling tower Model # LSWA- 20AA2 One (1) Closed loop chilled water system Two (2)Condenser water loops

A.3.1.2 VENDOR QUALIFICATIONS

a) The vendor shall possess a Commercial Pesticide License to apply and transport required pesticides in the state of New York.

b) All personnel handling chemicals shall have the proper training and certifications in accordance with Federal and New York State regulations for the particular chemicals being handled.

c) All personnel handling chemicals shall use proper Personal Protective Equipment (PPE) in accordance with Federal and New York State regulations for the particular chemicals being handled.

d) Transportation of all chemicals to the Buffalo VA Medical Center shall be done in vehicles meeting New York State Department of Transportation regulations for transporting said chemicals driven by individuals possessing proper certifications/licenses to transport said chemicals in the State of New York.

e) The vendor shall have experience treating HVAC systems at hospitals of similar size and complexity.

A.3.1.3 HOURS OF COVERAGE

a) Normal hours of coverage are Monday through Friday, from 8:00 AM to 5:00 PM, excluding federal holidays. All service/repairs will be performed during normal hours of coverage unless requested or approved by Contracting Officer’s Representative (COR).

b) Federal Holidays are:

New Years Day, Labor Day, Martin Luther King Day, Columbus Day, President’s Day, Veterans Day, Memorial Day, Thanksgiving, Independence Day, and Christmas When one of the holidays falls on a Sunday, the following Monday will be observed as the legal holiday. When holiday falls on a Saturday, the preceding Friday is observed as the legal holiday.

A.3.2 WATER TREATMENT SERVICES FOR THE CONTROL OF LEGIONELLA AND OTHER BIOLOGICALS

A.3.2.1 GENERAL

a) All work in this section shall conform to ASHRAE Standard 188-2015 (Legionellosis: Risk Management for Building Water Systems), and all applicable New York State, Federal and VA regulations.

b) This section only applies to systems and services required to treat the following systems at the Buffalo VA Medical Center.

i. Two chilled water systems consisting of four chillers

ii. Five condenser water systems consisting of six cooling towers

A.3.2.2 SYSTEM REQUIREMENTS

a) The vendor shall install and provide water treatment systems to include: chemical tanks with containment vessel for each tank, chemical injector pumps, chemical and conductivity monitors, injectors, check valves, isolation valves and all tubing or piping connecting the chemical feed to the buildings chilled water and condenser water to treat the systems listed in section A.3.2.1 b) in accordance with standards listed in ASHRAE Standard 188-2015 (Legionellosis: Risk Management for Building Water Systems). The water treatment systems shall also treat the water to prevent scale and corrosion.

A.3.2.3 SYSTEM SUPPORT

A.3.2.3.1 CHEMICALS

a) The vendor shall provide all chemicals required to treat the systems listed in section A.3.2.1 b) and maintain at a minimum a 2 week supply of chemicals at all times.

b) The vendor shall also have enough chemical on hand to disinfect all the systems in the event of a positive Legionella sample on all the systems simultaneously.

c) The vendor shall provide all required spill prevention/containment supplies for each system and on site storage location.

d) The contractor will respond to emergency chemical leaks within 4 hours, during on and off shifts, and during holidays and weekends.

e) The vendor shall supply all tanks with SDS sheet and a copy of pesticide license to the Contracting Officer’s Representative (COR)

f) The vendor shall be responsible for EPA reporting of Biocides.

g) At the end of the cooling season the contractor shall apply a lay-up scale inhibitor to the 5 condenser water systems.

A.3.2.3.2 SERVICE SUPPORT

b) The vendor shall perform monthly preventative maintenance services on all systems listed in section A.3.2.2 to insure that the systems are fully functional and properly calibrated. During these monthly services the vendor shall check system chemical levels, and take the following readings:

i. pH

ii. Conductivity

iii. Temperature

iv. Level of descaling compound

v. Chemical indicators relating to main compound being used to control bacteria/fungi

vi. Bacteria and fungi levels

c) Testing for bacteria, fungi and Legionella shall be done in accordance with State, Federal regulations, and VA Guidelines. The vendor shall use a laboratory for Legionella testing that has an ELAP certification through the New York State Department of Health.

d) Legionella sampling shall be done in accordance with New York state regulations and the contractor will provide the V.A. with a detailed report on the findings.

e) The vendor shall provide a detailed report within one week indicating all items listed in section A.3.2.3.2 a), all deficiencies found and all remediations made.

f) Inspections and maintenance shall not to include:

i. Tower fans, belts, or bearings.

ii. Chillers, chilled water pumps or condenser water pumps.

g) The vendor shall respond to failures with all associated equipment within 48 hours during a normal Monday through Friday work schedule with-in normal working hours.

A.3.2.4 DISINFECTION AND INSPECTION SERVICES

a) All system disinfections shall be done in accordance with ASHRAE Standard 188-2015 (Legionellosis: Risk Management for Building Water Systems), and all applicable New York State, Federal and VA regulations.

b) The vendor shall disinfect and clean the system and cooling towers at the start and close of the cooling season in accordance with State Regulations. The cooling tower shall also be inspected and certified before the beginning of each cooling season and not to exceed 90-day intervals thereafter. The inspector shall we be either a New York State licensed engineer; certified industrial hygienist; certified water technologist; environmental consultant; water treatment professional with training and experience performing inspections in accordance with current standard industry protocols including, but not limited to ASHRAE 188-2015.

c) Dates on start and stop of the cooling system shall be dictated by the COR and shall be dependent on the weather forecast. The approximate length of the cooling season is 8 months and at least 1 week of notice will be given to the contractor in regards to the start and end of the season.

d) The vendor shall include in the price of four additional full disinfections per year for all 5 of the condenser water systems.

e) If a positive Legionella sample is found above 0 Colony Forming Units (CFU) the vendor shall be on site no later than the next business day to disinfect all impacted systems in accordance with State Regulations and V.A Policies. The vendor shall then retest within 3-7 days in accordance with the same policies.

f) The vendor shall respond to a high bacteria or fungi samples on the next work day to disinfect and remediate all impacted systems.

A.3.2.5 SCHEDULING

a) Beginning of Cooling Season:

i. Disinfect and clean cooling towers and condenser water loop.

ii. Inspect and certify cooling towers

iii. Check operation and condition of chemical injector pumps, tubing and controllers.

iv. Legionella sampling.

1. Sample within 14 days of startup.

2. Disinfect or decontaminate system if a positive sample is detected.

3. Sampling to include PH levels and water temperature at the time of testing.

v. Provide detailed report including:

1. Disinfection and system cleaning date, deficiencies found and repairs made or needed.

2. Operation of chemical feed system, deficiencies found and repairs made or needed.

3. Legionella report

4. Follow up report if a positive sample occurs with retest results.

b) Monthly Cooling System:

i. Check repair and maintain chemical feed system.

ii. Check chemical levels in the chilled water and condenser water loops. Make remediation’s if needed. Sampling to include PH levels and water temperature at the time of testing.

iii. Check chemical tank levels.

iv. Check bacteria and fungi levels and make remediation’s if levels are high.

v. Provide detailed report of all monthly checks that includes:

1. Tank levels.

2. Chilled water, condenser water chemical levels and remediation’s made.

3. Bacteria and fungi levels and remediation’s made

4. Injection system repairs needed and made.

c) Within 90 days of each legionella sampling:

i. Conduct Legionella sampling and provide detailed report.

ii. Disinfection and retesting if positive detected.

iii. Sampling to include PH levels and water temperature at the time of testing.

d) Inspect and certify cooling towers:

i. Inspect and certify cooling towers in increments not to exceed 90 days of prior inspection.

e) Perform additional Legionella sampling:

i. Anytime there is a loss of biocide

ii. After failure of conductivity controller

iii. If the system goes down for more than 5 days

f) End of cooling season:

i. Disinfect and clean cooling towers and condenser water loops.

ii. Apply a lay-up scale inhibitor to the condenser water systems.

iii. Provide detailed report including:

1. Disinfection and system cleaning including deficiencies found and repairs made or needed.

2. Check operation of chemical feed system, deficiencies found and repairs made or needed.

A.3.3 WATER TREATMENT SERVICES FOR WATER CONDITIONING ONLY

A.3.3.1 GENERAL

a) This section only applies to systems and services required to treat the following systems at the Buffalo VA Medical Center.

i. Three boiler systems

A.3.3.2 SYSTEM REQUIREMENTS

a) The vendor shall install provide water treatment systems to include: chemical tanks, chemical injector pumps, chemical and conductivity monitors, injectors, check valves, isolation valves and all tubing or piping connecting the chemical feed to the three boiler systems located at the Buffalo VA Medical Center to ensure proper water conditioning.

A.3.3.3 SYSTEM SUPPORT

A.3.3.3.1 CHEMICALS

a) The vendor shall provide all chemicals required to treat the systems listed in section A.3.3.1 and maintain at a minimum a 2 week supply of chemicals at all times.

b) The vendor shall provide all required spill prevention/containment supplies for each system and on site storage location.

c) The contractor will respond to emergency chemical leaks within 4 hours, during on and off shifts, and during holidays and weekends.

d) The vendor shall supply all tanks with SDS sheet

A.3.3.3.2 SERVICE SUPPORT

a) The vendor shall perform monthly preventative maintenance services on all systems listed in section A.3.3.2 to insure that the systems are fully functional and properly calibrated. During these monthly services the vendor shall check system chemical levels, and take the following readings::

i. pH

ii. Conductivity

iii. Alkalinity

iv. Hardness

v. Nexguard

vi. Sulfite

b) The vendor shall make necessary remediation’s if ranges are out of parameters.

c) Provide detailed report of all monthly checks that includes:

i. Tank levels.

ii. Steam and condensate test results and remediation’s made.

iii. Injection system repairs needed and made.

d) The vendor shall respond to failures with all associated equipment within 48hours during normal hours of coverage.