Each day the violation exists after the date upon which a notice of violation is served under Section 3-301 shall constitute a separate violation for purposes of assessing penalties or fines under Section 3-305. The submission of a plan of correction pursuant to subsection (b) of Section 3-303 does not prohibit or preclude the Department from assessing penalties or fines pursuant to Section 3-305 for those violations found to be valid except as provided under Section 3-308 in relation to Type “B” violations. No penalty or fine may be assessed for a condition for which the facility has received a variance or waiver of a standard.