THE SHAW AVENUE DUMP IS OWNED AND OPERATED BY THE CITY OF CHARLES CITY, IOWA. IT IS A FORMER MUNICIPAL LANDFILL WHICH BEGAN RECIEVING SOLID WASTE RESULTING FROM CHEMICAL BATCH PROCESSING OF ARSENIC AND ORGANIC COMPOUNDS FROM SALSBURY ABASIVE (NOW SOLVAY ANIMAL HEALTH,INC.) AN ANIMAL PHARMACEUTICAL COMPANY, IN 1949. SALSBURY DEPOSITED APPROXIMATLEY 14,000 TO 28,000 CUBIC FEET OF SOLID WASTE PUT AT THE SITE FROM 1949 TO 1953. THE WASTE WAS BURIED IN TRENCHES AT THE NORTHERN END OF THE SITE. SALSBURY LABORATORIES ALSO DISCHARGED LIQUID WASTE TO THE CITY OF CHARLES CITY MUNICIPAL SEWAGE TREATMENT PLANT. THERE IS NO EVIDENCE THAT ANYONE BUT SALSBURY SENT HAZARDOUS WASTE TO THE SEWAGE PLANT. FROM 1049 TO 1964 THE SLUDGE FROM THE SEWAGE PLANT WERE BURIED IN TRENCHES AT THE SITE.