If you have a 3 years Quality review- It might certainly contain all the reports that are necessary for evaluation of
-Feed water characteristics-Normal & Seasonal
-Feed water regular counts (Microbial)
-Purified water counts (Microbial)
-Tank passivation and start-up conditions
-UV light source and its log book about intensity
-Regular sampling conditions and limits (Alert & Action limits)
-Qualification plan both (IQ & OQ) -(Phase 1)
-Operational plan (Phase-2 & Phase 3)
-Monitoring since 1.5 years (Phase-3-Continuous monitoring)
-Boroscopy, weld and contact material certifications.
-Valves and seal material certifications
-Measures to prevent rouge and Maintenance procedures.
-Spares and Material qualification.
-Distribution loop qualification and monitoring speeds and circulation capacities and Head capacity of Pumps.
-P&I Diagrams & Dead legs and Drain valves.
-Outlet monitoring or waste water monitoring
-Temperature & Conductivity reports.
-Hardness of water report and its silicon content in water(Initial testing reports)
-Scheme of Generation of Purified water and Material balance considerations including selection based on quality of feed and quality of output water based on compendial recommendations.
All these might have had respective place in your Quality review.
Dig them out and compile them as per the Guidance and make a report.
Be honest with WHO auditors and show your quality review you have.
I do not recommend you to cook a report and sign on back dates.
If you have a Quality review report containing above basic list, your case might be considered.