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INTERACTIVE UTILITY
Stormwater Rain Event Trigger Calculator
Determine if recent or forecasted precipitation triggers a mandatory environmental walk under your local permitting authority.
Enter Rainfall & Permit Data
Site ZIP Code *
Permitting Authority *
EPA NPDES Standard (0.25" trigger)
Texas TCEQ TXR150000 (0.50" trigger)
California Water Boards (0.50" pre-storm trigger)
Florida DEP FLR100000 (0.50" trigger)
Georgia EPD GAR100001 (0.50" trigger)
Rain Gauge Reading / Accumulation (inches) *
Calculate Trigger Status
Awaiting Calculations
Fill out the rain details and select your permitting guidelines to determine if an inspection is triggered.
Tired of Tracking Rain Gauges Manually?
StormSnap integrates with local NOAA meteorological stations to track rainfall over your construction boundaries automatically. Inspectors get instant push notifications when triggers are met, pre-populating rain accumulation records right inside your SWPPP drafts.
Try the Live Demo
Snap. Inspect. Comply.
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