DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION

CENTRAL SERVICE AREA

WATER TREATMENT SERVICES FOR THE

CHICAGO TRACON ELGIN, ILLINOIS

SPECIFICATION NUMBER: FAA-ELG-006 DATED: 4/21/2026

FAA/CHICAGO TRACON DISTRICT

1100 BOWES ROAD

ELGIN, ILLINOIS 60123

ATTACHMENT J-1

STATEMENT OF WORK

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DESCRIPTION/SPECIFICATIONS

1. SCOPE OF WORK

The Contractor shall provide consulting services and materials to maintain trouble free performance on all waterside components of the environmental components located at the Chicago TRACON, 1100 Bowes Road, Elgin, Illinois 60123.

The environmental equipment included in this contract shall include the closed loop chilled water system, closed loop hot water system, and open loop evaporative condenser system.

2. SPECIAL CONDITIONS

a. Security. The TRACON is a 24-hour, 7 day per week facility critical to aviation safety.

Therefore, disruptions of any major systems, including the environmental systems, must be avoided. Access to the TRACON is restricted to authorized personnel only. The contractor shall advise the Contracting Officer's Representative (COR) of all personnel requiring access so that security arrangements can be made. All contractor personnel will be required to register with security personnel and always wear official identification badges while on the site.

b. Contracting Officer's Representative. The Contracting Officer's Representative shall be contacted concerning all matters relative to this contract. The Contracting Officer's Representative is located at the site on a full-time basis. Contractor's representatives and a direct supervisor must be available for calls on specific problems should they occur. The representatives shall be available to the facility on 24-hour notice, and under emergency circumstances, should be able to visit the facility within four (4) hours after being notified.

c. Storage. Adequate storage area is available at the site for a reasonable amount of water treatment chemicals. This area is enclosed and heated. The contractor shall maintain adequate inventories for daily operational needs. The designated storage area is not overcrowded.

d. Training. Provide thorough training to all building engineering and/or maintenance personnel on the implementation and control of the program.

e. Contracting Qualifications. The contractor shall have been regularly engaged in the industrial water treatment field for a period of not less than five years.

f. Subcontractors. The Contractor agrees not to use subcontractors in any portion of his service other than those associated with the equipment.

g. Government-Owned Equipment. The following government-owned equipment is installed at the site and is available for the contractor's use:

ATTACHMENT 1

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(1) Cooling Tower Equipment 1 each, Megatron XS Tower Conductivity Control 3 each, Pulsatron Pulse Feeder 3 chemical tanks EasyWater CTF 100-S Skid

(2) Cooling Water closed loop equipment EasyWater CLC-2000-S

(3) Hot Water closed loop Chemical mixing pot Additional treatment equipment will be provided by the Contractor. Any relocation of the water treatment equipment must be performed and supervised by the contractor and approved by the COR.

h. Environmental Protection. All material provided by the contractor shall be compatible with applicable local, state, and federal regulations regarding environmental protection.

Handling and storage equipment shall all be following applicable OSHA regulations.

i. Chemical Safeguards. The contractor shall warrant that the chemicals used in the water treatment program will not endanger the health or safety of persons encountering the materials and will not damage personal or real property if the contractor's instructions are followed. The contractor also warrants that the chemical used in the water treatment program shall have no detrimental effect on the metallic or non-metallic materials in the equipment being treated.

The Contractor will ensure that a Material Safety Data Sheet accompanies all first-time orders and that the Contractor operates a 24-hour, 7 days per week emergency telephone number which can be called for emergency information regarding chemical spills and/or accidents involving Contractor's products. Include a copy of an MSDS and a description of the emergency phone network your company offers.

j. Packaging. The treatment supplied by the Contractor shall be specially designed and formulated for the type of water being used in each system. Each package of treatment shall be labeled describing the contents and directions for use. Cooling tower condenser water treatment should be shipped in bulk and delivered directly into the tank in the cooling tower chiller room (minimum of 250 gallons).

k. Submittals. Prior to award of contract, the Contractor shall submit for approval detailed descriptive literature of the treatment proposed. Five copies of such literature shall be submitted to the Contracting Officer for approval.

ATTACHMENT 1

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3. COOLING TOWER

Scale and Corrosion Control. Provide a single liquid cooling water treatment to control PH and corrosion in air conditioning condenser water systems. The use of toxic and staining corrosion inhibitors such as chromates will not be permitted. Corrosion inhibitors selected shall have been proved effective by at least one year use by the Contractor. Polyphosphates are not considered as effective corrosion inhibitors.

Corrosion shall be controlled below 3 mils and PH between 7.0 and 9.0.

Water Sampling for control Legionnaires’ Disease Bacteria (LDB). Effective water treatment, including biocides and dispersants, along with system maintenance should reduce the growth of LDB. The Association of Water Technologies recommends testing for LDB periodically within a Cooling Tower system to monitor and control the growth.

The Contractor shall sample and conduct a lab analysis for growth of LDB in the Cooling Tower system annually.

4. CONDENSER WATER TREATMENT

a. Service shall consist of treating the make-up water to the cooling towers with the most appropriate chemicals selected by the contractor. This treatment will provide complete protection of the condenser system against corrosion, scale formation, and biological growth. The Contractor shall maintain the following water characteristics within the condenser water system:

pH: 7.0 – 9.0 Corrosion Rate: Less than 3 mils per year (mild steel coupon) Water Concentration: 4X to 6X

Conductivity: Maintained in accordance with system design and controller setpoints Biological Activity: Controlled using oxidizing and non-oxidizing biocides with no visible algae or slime formation

b. The Contractor shall perform monthly testing and analysis of condenser water to verify proper chemical control and system performance.

c. The EasyWater CTF 100-S Skid is installed on the condenser water system. The Contractor shall maintain and service this equipment to ensure proper operation, including inspection, cleaning, verification of component functionality, and adjustment as required during routine service visits.

d. If condenser tubes or cooling tower becomes coated or fouled, the Contractor shall have the system cleaned at his expense.

e. Any damage to equipment or pipes will be repaired or replaced at the expense of the Contractor.

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5. CLOSED SYSTEMS

The contractor's service shall consist of maintaining the water in the closed chilled water and closed hot water systems to provide protection against corrosion, scale, and biological growth.

Closed Chilled Water System No chemical treatment shall be required for the closed chilled water system.

The EasyWater CLC-2000-S system is installed on the chilled water (evaporator) system and shall serve as the primary method of water treatment. This Series C system removes dissolved oxygen, filters suspended solids to sub-micron levels, and prevents as well as removes insulating deposits within the system.

The Contractor shall maintain and service this equipment to ensure proper operation, including inspection, cleaning, verification of component functionality, and adjustment as required during routine service visits.

The Contractor shall maintain the following minimum water quality conditions within the chilled water system:

Dissolved Oxygen (DO): < 1 PPM pH: 7.5 – 9.5 Suspended Solids: Maintained at minimal levels through continuous filtration Corrosion: No evidence of active corrosion or system degradation System Condition: Free of scale, fouling, and biological growth Iron levels shall be monitored as an indicator of corrosion, and any increasing trend or abnormal levels shall require investigation and corrective action by the Contractor.

Closed Hot Water System The closed hot water system shall be treated with appropriate chemicals to provide corrosion and scale protection as determined by the Contractor.

The Contractor shall maintain the following minimum water quality conditions within the hot water system:

pH: 8.0 – 10.5 Corrosion: No evidence of active corrosion or system degradation System Condition: Free of scale, fouling, and biological growth Iron levels shall be monitored as an indicator of corrosion, and any increasing trend or abnormal levels shall require investigation and corrective action by the Contractor.

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6. TESTING AND REPORTING

a. The Contractor shall provide the following testing and reporting services:

(1) Initial treatment dosages and blowdown schedules.

(2) Written instruction, including dosages and schedules for control of all water treatment services under this contract.

(3) Instructions to operating personnel regarding proper methods of applying treatment.

(4) Investigate unusual conditions and make recommendations for their correction.

(5) Provide water sample containers for on-site analysis.

(6) Provide log sheets for maintaining necessary records.

b. Service calls by the Contractor shall be made during normal business hours of 8:00 a.m. and 4:00 p.m. Monday through Friday. The Contractor's Technical Representative at the TRACON will perform the following on a monthly basis:

(1) Review water analysis records, correspondence, and reports since previous call.

(2) Make necessary tests of water samples to assure proper operation of the water treatment program. Readings must be within the established parameter ranges.

(3) Consult with operating personnel on methods of increasing overall efficiency and effectiveness of water treatment program.

(4) Submit a written report of the service call to the Contracting Officer's Representative.

(5) Pickup and dispose of all empty drums and chemical containers at an off-site location.

(6) Pickup excess treatment and dispose of when need arises.

c. The Contractor shall be responsible for overall system performance regardless of treatment method (chemical or non-chemical). Any failure to maintain system conditions, including but not limited to corrosion, scale, fouling, or biological growth, shall be corrected by the Contractor at no additional cost to the Government.

7. QUARTERLY INSPECTIONS

a. The Contractor shall, with the Contractor's Technical Representative, physically inspect it for scale or corrosion.

b. Inspections shall be conducted of the following equipment:

Piping Holding Tanks Chillers 1-4; once every quarter consecutively Chill/Hot Water feed for AHU 1-16

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8. ANNUAL INSPECTIONS

a. Chiller Inspections - The technician will supply photographs of equipment internals for the Contractor to evaluate. The Government will open the chiller for inspection by the Contractor if deemed necessary.

b. Test Cooling Tower System for LGB growth.

c. Contractor shall replace ultraviolet (UV) lamps in the EasyWater CTF 100-S system annually.

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