QUAL2Kv2

One-dimensional river and stream water quality model with steady state hydraulics, non-uniform steady flow, and diel heat budget/water-quality kinetics.

QUAL2Kv3

New release that includes improvements to sediment diagensis, phyotplankton and periphyton, and weir reaeration and oxygen saturation calculations.

LAKE2Kv1.04

One-dimensional vertical lake model that is designed to compute seasonal trends of water quality in stratified lakes.

LAKE2Kv1.05_beta

The above version is currently in beta testing and is being used for training purposes.

AT2K

One-dimensional lateral benthic algae model that computes the distribution of biomass in rivers according to temperature, attenuated light, and available nutrients.