FAILURE TO REPORT WITHIN 24 HOURS ANY NONCOMPLIANCE WHICH MAY ENDANGER HEALTH OR THE ENVIRONMENT, INCLUDING: (1) ANY MONITORING OR OTHER INFORMATION WHICH INDICATES THAT ANY CONTAMINANT MAY CAUSE AN ENDANGERMENT TO A USDW; OR (2) ANY NONCOMPLIANCE OR MALFUNCTION OF THE INJECTION SYSTEM WHICH MAY CAUSE FLUID MIGRATION INTO OR BE- TWEEN USDWS.