Attachment B.docx

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6515--Chlorine Monitoring System
Solicitation number
36C26225Q1074
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This document is an attachment (Attachment B) describing a Chlorine Monitoring System for the Department of Veterans Affairs (VA) at the VA Greater Los Angeles Healthcare System. The specific brand name referenced is HACH - CM130, with key requirements including continuous online monitoring of free or total chlorine, reagent-free operation using amperometric sensor technology, and integration capabilities with SCADA or PLC systems. The system is intended for pre-treatment components of a Dialysis Water Purification System, with measurement ranges of 0-2 mg/L to 0-20 mg/L and rapid response times.

The associated federal contract opportunity is a Sources Sought/Request for Information (RFI) under Solicitation Number 36C26225Q1074, seeking potential qualified sources under NAICS code 334516. Interested vendors must submit responses by Monday, July 7th, 2025 at 10:00 a.m. PDT via email to Clift.Domen@va.gov. The RFI requires vendors to provide business size status, manufacturer/distributor details, federal contract information, general pricing, UEI number, and capabilities demonstrating they can meet the system's technical requirements. This RFI is for market research and planning purposes and does not constitute a formal solicitation.

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Attachment A.xlsx XLSX spreadsheet
36C26225Q1074.docx DOCX document

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Attachment B Brand Name or Equal Description/Requirements:

The Brand Name for the below equipment is HACH - CM130. See Attachment A for associated quantity required by the facility.

Salient characteristics –

1. Continuous, Online Monitoring

· Provide real-time measurements of free Chlorine (or Total Chlorine depending on configuration).

· Ensures accurate process control and compliance with regulations

2. Reagent-Free Operation

· Uses amperometric sensor technology, which does not require reagents or chlorimetric chemicals.

· Reduce maintenance and operating costs.

3. Integrated Flow Cell and Sensor

· Comes with a flow cell and pre-calibrated sensor

· Allows easy instruction and startup.

4. Easy Maintenance

· Features a low-maintenance sensor design

· Calibration and cleaning intervals are extended compared to older systems.

5. Intuitive User Interface

· Includes a color display and user-friendly menus for setup, calibration and diagnostics.

· Typically integrated with Hach’s SC controller platform (e.g., SC200 or SC1000).

6. Alarm and Output Capabilities

· Offers analog (4-20 mA) and digital communication options for integration with SCADA or PLC systems.

· Can trigger alarms or control processes automatically based on chlorine levels.

7. Application

· Intended for the pre-treatment components – pre & post carbon tanks of Dialysis Water Purification System

8. Typical Measurements Ranges

· Free Chlorine : 0-2 mg/L up to 0-20 mg/L (depending on sensor and configuration)

· Response Time : Rapid, usually within seconds to minutes depending on flow and sample condition

9. Durability and Environmental Suitability

· Designed for harsh environments and continuous use.

· Waterproof and corrosion-resistant housing (IP65/67 rated, depending on installation).

File details come from the government source that posted it. Updated .