04/06/2025
The Tale of Two Water Plants:
Honouliuli and Kānewai
By Dr. John Souza, Jr.
On the island of Oʻahu, water flows through more than just pipes and streams; it flows through paradigms. Two water systems, just a few miles apart, offer radically different visions of what it means to live in right relationship with land and life.
One is the Honouliuli Wastewater Treatment Plant in Kapolei: a highly engineered, energy-dependent system built to manage the waste of our modern lives. The sewage from Mānoa, a valley abundant in rainfall and life, is pumped miles away through a series of electricity-driven lift stations. That electricity is powered by oil. That oil is shipped in from distant lands, carried by tankers that snake it through underwater pipelines stretching across the ocean floor. If these lines rupture, our reefs will be poisoned. If the pumps fail, Mānoa could flood with its own waste. These aren’t hypotheticals—they are real, fragile contingencies baked into a system that treats waste as something to be removed, rather than transformed.
In stark contrast lies Ka Papa Lo‘i o Kānewai, tucked within that very same Mānoa Valley. This lo‘i system is not just an agricultural site; it’s an epistemology made visible. Based on the principle that as water flows, the land will flourish, Kānewai is a living example of a regenerative system. Spring water enters the lo‘i and slowly filters through terraces of kalo and native plants. In the process, the water is cleansed, nutrient-enriched, oxygenated, and then returned, cleaner than before the stream it came from. No fossil fuels. No concrete. No illusion of control. Just a reciprocal relationship that sustains both people and place.
These two water systems present a choice:
One is extractive, centralized, and vulnerable. The other is relational, decentralized, and resilient.
So why, in the face of climate disruption, biodiversity collapse, and social fragmentation, do we keep investing in brittle systems that require ever more energy and risk to maintain? Why do we accept a reality where the waste of a valley is outsourced to the edge of the island, rather than composted back into its life cycle?
Kānewai reminds us that we already know how to live differently. These aren’t “alternative” models. They’re ancestral models, deeply attuned to island ecosystems. And they are urgently needed. Because when the pipes break, when the power grid falters, it won’t be an abstract policy debate; it will be our valleys, our reefs, our families that bear the cost.
We are not separate from these systems. We are the water. We are the waste. We are the stewards (or the saboteurs) of what comes next.
It’s time to learn from the source.
