71 documents
The Document Library
Search everything published — by keyword, or by narrowing the filters.
SectionScience & HealthSectionKnowledge & TrainingSectionLabs & QualitySectionProcesses & OperationsYear2023Year2026Clear all
- Technical guide· Knowledge & TrainingRO operation and cleaning: a field guideNormalizing performance data, reading the trends, and deciding when to clean.3 Nov 2026Open the guide
- Article· Knowledge & TrainingWater Operator Competency and Certification: A Global Framework OverviewWater operator certification — requiring demonstrated competency in treatment process management, hydraulic operations, water quality monitoring and emergency response — is a cornerstone of safe water supply. This overview compares the US, EU, Australian and IWA frameworks and the core competency domains they share.3 Nov 2026Read article
- Article· Labs & QualityISO/IEC 17025 Accreditation for Water Quality Laboratories: A Practical GuideISO/IEC 17025:2017 is the international standard for testing and calibration laboratory competence. This guide outlines the key requirements, common non-conformities in water quality laboratories, and practical steps for achieving and maintaining accreditation under a national accreditation body.3 Nov 2026Read article
- Article· Processes & OperationsCT Disinfection Control: Managing Chlorine Contact Time in Drinking Water PlantsCT (concentration × time) is the regulatory metric for drinking water disinfection efficacy. This article explains how to calculate, monitor and optimise CT under variable flow, temperature and pH conditions, with worked examples for free-chlorine, chloramine and UV systems.3 Nov 2026Read article
- Article· Science & HealthPFAS and Human Health: A Review of Current Epidemiological EvidencePer- and polyfluoroalkyl substances (PFAS) are associated with thyroid disease, elevated cholesterol, reduced vaccine response and certain cancers. This review summarises the weight-of-evidence across major human health endpoints and the dose–response relationships relevant to drinking water risk assessment.3 Nov 2026Read article
- Tip sheet· Processes & OperationsWet Well Maintenance ChecklistTen checks that prevent most emergency callouts.3 Nov 2026Read the tips
- Webinar· Knowledge & TrainingCutting Aeration Energy: Live Q&AA recorded session on ammonium-based control, with audience questions.3 Nov 2026Watch the webinar
- Case study· Processes & OperationsRiyadh Lift Station ModernisationReplacing 14 ageing lift-station pumps cut blockage callouts by 71% and energy use by 19%.3 Nov 2026See the case
- Article· Processes & OperationsReducing Non-Revenue Water with District MeteringDistrict metered areas turn an unmanageable network-wide loss figure into a set of tractable local problems.3 Nov 2026Read article
- Article· Processes & OperationsCutting Aeration Energy in Activated-Sludge PlantsAeration typically consumes 50–60% of a treatment plant’s electricity. Most of that is recoverable without new blowers.3 Nov 2026Read article
- Article· Science & HealthPFAS: an introductionWhat PFAS covers within Contaminants, the questions it answers in practice, and where to read next.31 Oct 2026Read article
- Article· Science & HealthPathogens: an introductionWhat Pathogens covers within Microbiology, the questions it answers in practice, and where to read next.30 Oct 2026Read article
- Blog post· Processes & OperationsWhy the pump curve on the datasheet is not the one you getEvery curve is measured on clean water at a fixed speed. Here is what suction conditions, wear rings and a worn impeller do to it.28 Oct 2026Read the post
- Blog post· Processes & OperationsCommissioning a pump station in a weekWhat was specified, what we found on site, and the four changes that made the difference.23 Oct 2026Read the post
- Article· Processes & OperationsPressure: an introductionWhat Pressure covers within Distribution Systems, the questions it answers in practice, and where to read next.21 Oct 2026Read article
- Article· Knowledge & TrainingAdvisory Services: an introductionWhat Advisory Services covers within Expert Network, the questions it answers in practice, and where to read next.19 Oct 2026Read article
- Article· Processes & OperationsJar Testing: an introductionWhat Jar Testing covers within Coagulation & Clarification, the questions it answers in practice, and where to read next.18 Oct 2026Read article
- Article· Labs & QualityProficiency: an introductionWhat Proficiency covers within Calibration & QA/QC, the questions it answers in practice, and where to read next.12 Oct 2026Read article
- Article· Labs & QualityHigh-Resolution MS: an introductionWhat High-Resolution MS covers within Advanced Analytics, the questions it answers in practice, and where to read next.11 Oct 2026Read article
- Blog post· Processes & OperationsHolding a chlorine residual at the far end of the networkBooster placement, tank turnover and the trade-off between disinfection and taste complaints.10 Oct 2026Read the post
- Article· Science & HealthTargets: an introductionWhat Targets covers within Water Safety, the questions it answers in practice, and where to read next.8 Oct 2026Read article
- Blog post· Processes & OperationsPumping energy per cubic metre, month by monthThe one number worth putting on a wall, and the three ways it gets reported wrongly.1 Oct 2026Read the post
- Article· Labs & QualityPhysical: an introductionWhat Physical covers within Core Testing, the questions it answers in practice, and where to read next.30 Sept 2026Read article
- Article· Processes & OperationsSedimentation: an introductionWhat Sedimentation covers within Coagulation & Clarification, the questions it answers in practice, and where to read next.28 Sept 2026Read article