Water Reuse & Recycling
Match treated water quality to a controlled, monitored end use.
Define the service failure before selecting infrastructure.
“Treated” is not one universal quality; risks depend on contaminants, exposure and use.
Reuse systems fail when demand, conveyance, price and liability are unclear.
Record state, district, city/block, village/ward or supply zone; season and date; source or asset; affected users; observed service; measurement or sample method; photo/document where safe; and uncertainty. Never imply 100-metre accuracy unless the evidence genuinely supports it.
Test the full source-to-service chain.
End use selected after plant design
Treat this as a hypothesis until records, field observation, seasonal evidence and credible alternatives are checked.
Standards and monitoring not use-specific
Treat this as a hypothesis until records, field observation, seasonal evidence and credible alternatives are checked.
Users lack reliable quantity or quality
Treat this as a hypothesis until records, field observation, seasonal evidence and credible alternatives are checked.
Recharge proposed without hydrogeology
Treat this as a hypothesis until records, field observation, seasonal evidence and credible alternatives are checked.
Components that must work together.
Agriculture and industrial reuse
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
Landscaping and construction
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
Toilet flushing and municipal use
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
Application-specific treatment
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
Safe recharge where justified
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
User contracts and monitoring
Define the responsible actor, operating standard, input, handoff, maintenance requirement, failure trigger and evidence record.
Match intervention to hydrogeology, settlement and service capacity.
Choose use first, then treatment and monitoring barriers.
Define buyer, quality, volume, price and failure response.
Separate potable and non-potable networks clearly.
Require stringent independent review for recharge or potable applications.
Diagnose, protect, pilot, measure and institutionalise.
Verify & protect
Confirm the location, affected users, service chain, immediate health or safety risk, responsible agency and existing evidence.
Controlled pilot
Build one closed reuse agreement with continuous operations records and periodic independent testing.
Durable system
Fund operations, preventive maintenance, skilled teams, monitoring, public reporting, correction pathways and independent evaluation.
Measure service and outcomes—not assets alone.
Water interventions can transfer risk across people, places and time.
- RiskCross-connectionPrevention · accountable owner · trigger · remedy
- RiskPathogen/chemical exposurePrevention · accountable owner · trigger · remedy
- RiskSoil or aquifer accumulationPrevention · accountable owner · trigger · remedy