Learn About Water
A practical learning library for water resources, stormwater, monitoring, equipment selection, wastewater, reuse, and engineering calculations.
Learning paths
Stormwater calculations
Learn peak runoff, time of concentration, open channel flow, pipe capacity, detention, water quality volume, and BMP storage.
Equipment selection
Compare monitoring equipment, field meters, automatic samplers, telemetry, pumps, and treatment equipment.
Compliance and monitoring
Understand sampling programs, BMP documentation, monitoring locations, data quality, and field workflow.
Engineering calculation guides
Rational Method runoff
Estimate peak runoff from drainage area, rainfall intensity, and runoff coefficient.
Manning equation
Learn how roughness, slope, and hydraulic radius affect open channel and pipe flow.
Rainwater harvesting tank sizing
Estimate collection potential, storage demand, and overflow considerations.
BMP media storage
Estimate surface ponding, media void storage, and total storage in bioretention and planter BMPs.