Colorado Revised Statutes Title 25. Health § 25-16-304. Voluntary clean-up plan

(a) An environmental assessment of the real property which describes the contamination, if any, on the property and the risk the contamination currently poses to public health and the environment;

(b) A proposal, if needed, to remediate any contamination or condition which has or could lead to a release which poses an unacceptable risk to human health or the environment, considering the present and any differing proposed future use of the property and a timetable for implementing the proposal and for monitoring the site after the proposed measures are completed;

(c) A description of applicable promulgated state standards establishing acceptable concentrations of constituents in soils, surface water, or groundwater and, for constituents present at the site for which such state standards do not exist, a description of proposed clean-up levels and any current risk to human health or the environment based upon the current or proposed use of the site.