Purpose-Built
Wastewater operator workbench for SRT/MCRT, F:M, WAS/RAS flows, SVI, loading, detention, oxygen and chemical-dose screening, trends, and study references.
One-time iPhone and iPad app
Sludgeage
Activated-sludge process math
Core Features
- SRT, F:M and SVI math
- Solids and loading inventory
- Weekly operating trend
- Private field-photo evidence
Private by Design
No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.
Use It Responsibly
Process estimates do not replace laboratory sampling, permit requirements, plant instrumentation, or licensed operator judgment. Never use the app as an automatic control system.