A system for the onsite storage, treatment and disposal of contaminated soils and sediments includes a trench that is excavated at the site. A disclosed method to determine the temperature of a circuit comprises generating a first current that increases as temperature increases, generating a second current that decreases as temperature increases, and detecting the temperature by receiving a first and second signal based on the first and second currents to determine whether the temperature exceeds at least one temperature threshold. The pixel electrode has a thickness in a range of between about 5 nm and about 20 nm. This is particularly valuable for sheet molding composites, in which the increase in viscosity makes the composites less tacky, and for dry film resists. A clock generator circuit generates a clock signal based on the period control signal.