FAILURE TO DEMONSTRATE MECHANICAL INTEGRITY ON SUBJECT INJECTION WELL AT LEAST ONCE EVERY 5 YEARS. FAILURE TO MONITOR THE ANNULUS OF THE INJECTION WELL WITH A GAUGE DESIGNED TO INDICATE BOTH A VACUUM AND A POSITIVE PRESSURE. FAILURE TO DEMONSTRATE ADEQUATE FINANCIAL RESPONSIBILITY TO CLOSE, PLUG, AND ABANDON THE INJECTION WELL IN ACCORDANCE WITH AN EPA-APPROVED PLAN.