We prove existence and uniqueness of the solution of a white noise dri
ven parabolic SPDE, in case the drift is measurable and satisfies a ''
one sided linear growth condition,'' and the diffusion coefficient is
nondegenerate, has a locally Lipschitz derivative, and satisfies a lin
ear growth condition. The proof combines arguments similar to those of
Gyongy and Pardoux together with an estimate of the density of the so
lution of the equation without drift, which is obtained with the help
of the Malliavin calculus. (C) 1994 Academic Press, Inc.