What Does "Guaranteed Water Savings" Actually Mean?

What the Guarantee Actually Says

AWS may offer a 15% minimum savings guarantee only for qualifying projects under a written performance agreement. Terms are based on the pre-installation assessment and contract, not a universal promise. AWS program pricing includes an installation charge plus a fixed monthly service/rental fee based on eligible charges; the minimum is not guaranteed net take-home.

How Savings Are Measured (M&V)

Measurement and verification methods, baselines, billing periods, and study documentation vary by project. Review the specific customer result or written agreement rather than assuming IPMVP Option B, independent engineering, quarterly visits, or a 10-year measurement period.

This level of measurement rigor is what separates a written guarantee from a marketing claim. For more on our certification standards, visit the certifications page.

What Qualifies for the Guarantee

Properties that qualify for the written guarantee typically have:

• →A commercial water meter (not a residential meter)
• →Monthly water spend of $1,500 or more
• →A main supply line accessible for installation (no in-slab or otherwise inaccessible configurations)
• →Consistent, high-volume daily water draw — hotels, multifamily, hospitals, car washes, data centers, golf courses

What the Guarantee Does NOT Cover

The guarantee covers metered water consumption reduction. It does not cover:

• →Sewer bill savings — though these typically follow in municipalities where sewer is billed as a multiplier of water meter readings. See our post on sewer bill reduction for details.
• →Rate increases by the utility — if your utility raises rates, your dollar savings will still be real, but the bill may still increase on a per-unit basis.
• →Irrigation-only systems or non-metered water sources.

For a deeper look at sewer bill compounding, see: Does Reducing Your Water Consumption Also Lower Your Sewer Bill?

Ready to see what your specific facility qualifies for? Start with our savings assessment or browse verified client results.