Model: Welsh Water digests 15-20%
“Sludge processed by AAD: Welsh Water (current) ~15-20%”
wrong Retired in version 2.0.0, 2 October 2026.
Where it appeared: Economic Impact Model v1, sheet 'Northumbrian Comparison', cell C4.
Why it failed
Welsh Water's audited tables show 98.2% (2025-26) and 98.5% (2024-25).
Evidence
What the site says now
Retired with the v1 model, which stays available under Archive.