Water Governance in Healthcare Systems: A Planetary Boundary and Supply Chain Risk Analysis

Dr Alwin Tan, MBBS, FRACS, EMBA (Melbourne Business School)

Senior Surgeon | Governance Leader | HealthTech Co-founder
Harvard Medical School — AI in Healthcare
Australian Institute of Company Directors — GAICD candidate
University of Oxford — Sustainable Enterprise

An Institute for Systems Integrity (ISI) Perspective

Executive Summary

Freshwater use is one of the nine planetary boundaries identified as critical to maintaining Earth system stability (Rockström et al., 2009; Steffen et al., 2015). While climate change dominates sustainability discourse, water security presents a parallel and interdependent risk.

Healthcare systems are both operationally water-intensive and structurally exposed to upstream water risk through global supply chains. Despite this, water governance remains underdeveloped in healthcare sustainability strategies.

This paper examines water as a systemic risk to healthcare resilience and outlines governance interventions aligned with planetary boundary science.

1. Freshwater as a Planetary Boundary

The planetary boundaries framework identifies freshwater use as a core Earth system process regulating ecological stability (Rockström et al., 2009).

Recent assessments highlight:

• Regional freshwater boundary transgression
• Aquifer depletion
• Altered hydrological cycles due to climate change
• Increased drought and flood frequency

Freshwater instability interacts with other boundaries, including climate change and land-system change.

Healthcare operates downstream of these processes.

2. Water Intensity in Healthcare Operations

Hospitals are resource-intensive facilities with high water demand:

• Sterilisation processes
• Cooling systems
• Sanitation and hygiene
• Laundry services
• Dialysis treatment

Dialysis alone can require significant volumes of treated water per session, raising efficiency concerns in water-scarce regions.

Operational water management often focuses on cost and infrastructure reliability, rather than long-term hydrological resilience.

3. Supply Chain Water Risk

Healthcare’s water footprint extends beyond direct use.

Pharmaceutical manufacturing and medical device production frequently occur in water-stressed regions. Water withdrawal, effluent discharge, and contamination risks contribute to:

• Local ecosystem degradation
• Biogeochemical flow alteration
• Public health exposure

Supplier water risk is rarely integrated into procurement governance.

This represents a structural blind spot.

4. Governance Gaps

Common weaknesses include:

• Absence of institutional water risk assessment
• Limited integration of watershed exposure in supplier evaluation
• No board-level oversight of water footprint
• Water treated as operational utility rather than strategic risk

Under TCFD-aligned climate risk frameworks, physical climate impacts include water stress and flooding (TCFD, 2017). However, healthcare institutions seldom extend scenario analysis to water system fragility.

5. Integrity-Based Water Governance Model

A resilient approach requires:

A. Institutional Water Footprint Mapping

Quantifying both direct and indirect water consumption.

B. Supplier Water Risk Disclosure

Requiring transparency regarding water withdrawal intensity and regional stress exposure.

C. Efficiency Redesign

Investment in recycling systems, sterilisation optimisation, and dialysis water recovery.

D. Watershed Collaboration

Participation in regional water governance partnerships.

E. Board-Level Risk Integration

Water risk incorporated into enterprise risk management frameworks.

6. Strategic Implications

Water insecurity presents:

• Operational disruption risk
• Infection control vulnerability
• Financial risk under scarcity pricing
• Reputational exposure
• Long-term population health implications

Healthcare resilience depends not only on clinical excellence but on ecological system stability.

Water governance should be considered a foundational component of planetary health leadership.

Conclusion

Water is not simply an input into healthcare operations. It is a strategic determinant of institutional resilience and public health stability.

In an era of planetary constraint, healthcare sustainability strategies must expand beyond carbon to include freshwater governance and supply chain exposure.

Water instability is not a distant environmental concern.

It is a systems integrity issue.

References (Harvard Style)

Rockström, J. et al. (2009) ‘A safe operating space for humanity’, Nature, 461, pp. 472–475.

Steffen, W. et al. (2015) ‘Planetary boundaries: Guiding human development on a changing planet’, Science, 347(6223).

Task Force on Climate-related Financial Disclosures (TCFD) (2017) Final Report: Recommendations of the TCFD. Financial Stability Board.

World Health Organization (WHO) (2022) Water, sanitation and health. Available at: https://www.who.int