Atlan Stormwater

Tertiary Treatment Sizing Tool

Calculate water quality flow and select a regionally approved Atlan tertiary treatment system for your project.

Site Parameters

Treatment Demand Analysis

Tertiary selection overview

Water quality flow is calculated from catchment inputs, then filtered by region-specific product approvals.

Water Quality Flow

-- L/s

Selected Region

Auckland

Calculation

Catchment Sizing

Results on next page

Q (L/s) = Area x runoff coefficient x rainfall / 3600