ON JUNE 4, IDNR RESPONDED TO A COMPLAINT FROM A WORKER AT LOWE'S HOME CENTER THAT OTHER EMPLOYEES WERE DUMPING DIAZINON ON THE GROUND NEAR A WETLAND. THE BOTTLES OF DIAZINON WERE MISLABELED, AND RATHER THAN SENDING THE BOTTLES BACK TO ORTHO, A SUPERVISOR DECIDED TO DUMP THE CONTENTS OF THE BOTTLES ON THE GROUND OUTSIDE OF THE BUILDING. ONE BOTTLE CONTAINS ENOUGH DIAZINON TO MAKE 1200 GALLONS OF SPRAY. DIAZINON HAS A 1 POUND REPORTABLE QUANTITY. THE DIAZINON DID MIGRATE INTO A MARSH NEAR THE STORE. DIAZINON IS TOXIC TO WILDLIFE. LOWES DID NOT IMMEDIATELY NOTIFY THE NRC, SERC, OR LEPC OF THE RELEASE. ADMINISTRATIVE CERCLA COMPLAINT FILED ALLEGING FAILURE TO IMMEDIATELY NOTIFY NRC OF RELEASE OF HAZARDOUS SUBSTANCE.