Official Austin Texas Resource for Onsite Water Reuse Systems
Wahaso Onsite Water Reuse for NEW Urban Water Regulations
Onsite Water Reuse with Wahaso
Capture. Treat. Reuse. Comply.
Future-ready buildings are built with water reuse in mind. Wahaso helps you stay ahead of the curve with scalable systems that meet regulatory requirements and maximize water efficiency.
Why Onsite Water Reuse Matters
Overview
Many cities—like Austin, Texas—are leading the way in mandating onsite reuse systems for large buildings. Why?
Because water is precious. Capturing and reusing rainwater, AC condensate, graywater, or even foundation drain water helps reduce strain on potable water supplies, save utility costs, and build resilience in the face of drought and growth.
With updated codes like Austin’s Chapter 15-13 (effective April 1, 2024), new construction projects must now plan for non‑potable water use in toilets, cooling towers, irrigation, and more.
View AustinTexas.gov page for Onsite Water Reuse Systems: here
Which Buildings Must Use Onsite Water Reuse
—and Why
End‑to‑End Process
—by Wahaso
How Onsite Water Reuse Works
- Collect – Harvest rainwater, condensate, graywater, or approved sources
- Treat – Apply filtration, UV, or other disinfection to meet non‑potable standards
- Distribute – Support irrigation, cooling towers, toilets, laundry, etc.
- Monitor & Report – Track usage and support permitting with data tools
Real‑World Impact
Austin’s ordinance, effective April 1, 2024, is just one example of a growing trend in urban water regulations. By planning for reuse early, Wahaso clients avoid permitting delays, gain faster approvals, and show environmental leadership. Our projects span campuses, corporate and mixed-use developments—helping clients save water, comply, and scale sustainably.
Ready to Get Started?
Wahaso makes onsite water reuse simple, scalable, and sustainable. We provide everything—from water balance modeling to full system commissioning and long-term support.
Start with a free project evaluation.
Call us: (800) 580-5350
Fill out our Scoping Form to begin.
A Guide to Water Harvesting Systems for Commercial Buildings & White Paper Cost-Benefit Analysis of Water Harvesting
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Onsite Water Reuse Systems
Wahaso Articles
Unlocking Retrofit Potential: A Framework for Water Reuse in Existing Buildings
While new construction projects often dominate the conversation around water harvesting, the built environment tells a different story.
Legionella Control in Cooling Towers: Manage Risk and Push Higher Cycles of Concentration
Cooling towers sit at the intersection of building health, energy performance, and water efficiency. They also represent one of the most common environmental sources of Legionella risk. Legionnaires’ disease outbreaks are frequently traced back to poorly maintained towers where warm, stagnant water, nutrients, and biofilms allow bacteria to thrive.
Stormwater Detention Systems and Reuse Opportunities for Commercial Projects
Detention temporarily stores runoff and then releases it at a controlled rate so post-development peak flows approximate pre-development conditions (mitigating flooding/erosion).
Understanding Water Reuse Codes: Stormwater, Greywater, and Rainwater Harvesting Laws
Most jurisdictions anchor onsite water harvesting or reuse to their plumbing code, public health rules, and any local non-potable programs. Let’s discover Water Reuse Codes and Laws.
Wahaso Supporting Onsite Water Reuse Systems in Austin, TX: A Sustainable Future
Discover how onsite water reuse systems are transforming water conservation in Austin, TX. Learn why sustainable water practices are essential for Austin’s future.
Cooling Tower Blowdown Solutions for Property Managers: Boost Sustainability in Commercial, Industrial, and Multi-Family Buildings
Discover how property managers can enhance sustainability with cooling tower blowdown solutions. Learn how Wahaso’s Cooling Tower Reuse System reduces water waste, supports green initiatives, and optimizes efficiency in industrial, commercial, and residential multi-family properties.
Since 2004
Wahaso Mission
Our mission at Wahaso is to help municipalities and commercial property owners reduce the impact of their buildings on the environment through innovative and sustainable water practices.
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Water Harvesting Solutions
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