Annual Maintenance Contract for Domestic Water Pipeline Disinfection - 2026

Contract posted on: October 6, 2025 • Closing on: October 13, 2025

Job reference: JB004-25-03315

• Domestic Water Circuit - 1 No.
• Building Floor Model - G + 30 + R

• Sampling: Arrange samples from various strategic points within the domestic water network as advised by the client.
• Analysis and Disinfection Process: Flush the complete domestic water system with plain water to remove suspended solids and impurities.
• Refill the network with fresh water and perform chlorination using Municipality-approved sodium hypochlorite or equivalent disinfectant.
• Maintain chlorine concentration of approximately 2.0-2.5 ppm during dosing.
• Allow adequate residence time as per Dubai Municipality guidelines before final flushing.
• Flush the system until chlorine residual is below 0.5 ppm (acceptable limit).
• Conduct bacteriological and chemical testing on collected samples in accordance with International Standard Test Methods (ISO/DM Standards).
• Ensure all chemicals used are approved by Local Authorities and safe for potable water systems.
• Submit detailed analysis reports electronically and provide original certificates to the site office within the same month of sampling.

• Pre- and Post-Service Reports to include: Sampling locations and methodology; Chlorination procedure and contact time; Test results with comparison to permissible limits; Corrective actions or recommendations, if any.

• All personnel shall be equipped with proper PPE including uniforms, gloves, masks, and safety goggles.
• Work areas shall be cordoned off with caution signage during operations.
• The area shall be fully cleaned and restored post-service; no materials or waste shall be left on-site.
• The vendor is solely responsible for any injuries or liabilities to its staff during execution of work.

• Services shall comply with Dubai Municipality and DEWA standards for potable water hygiene and HS(G) 70 guidelines for prevention of Legionella.
• All documentation (reports and certificates) must be submitted within 7 working days after each service.

• Service quality and compliance guaranteed for 6 months from the date of each disinfection.

The Community: The Community, Jumeirah Village Triangle, Dubai, United Arab Emirates.