INDIAN BEND WASH (NORTH) IS AN NPL SITE LOCATED IN SCOTTSDALE, ARIZONA (CHAPPARAL RD, PIMA RD, SCOTTSDALE RD, MCKELLIPS RD; SOUTHERN HALF OF SCOTTSDALE). THE SITE WAS LISTED BECAUSE GROUNDWATER IN THE AREA HAS BEEN CONTAMINATED WITH VOLATILE ORGANICS (PRIMARILY TCE). THE RI/FS WAS CONDUCTED. IN SEPTEMBER 1988 THE EPA SIGNED AN OPERABLE UNIT ROD FOR THE MIDDLE AND LOWER AQUIFERS. A FINAL ROD FOR THE ENTIRE SITE (INCLUDING SOILS AND THE UPPER AQUIFER) IS EXPECTED THE END OF FY90. EPA SENT SPECIAL NOTICE LETTERS TO THE PRP'S IN MARCH OF 1989. NEGOTIATIONS FOR AN OPERABLE UNIT RD/RA CONSENT DECREE WERE NOT PROGRESSING SO THE REGION ISSUED A 106 ADMINISTRATIVE ORDER AGAINST THE PRP'S IN JULY 1989. EPA AND DOJ (LESLIE ALLEN) CONTINUED NEGOTIATING WITH THE PRP'S AND A CONSENT DECREE FOR THE RD/RA IS EXPECTED IN FEBRUARY 1990. THE CITY OF SCOTTSDALE AND STATE OF AZ MAY SIGN AS CO-PLAINTIFFS WITH EPA.
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Additional Background: The Indian Bend Wash (North) Superfund Site (���NIBW���) saga began in 1981 when the City of Scottsdale discovered that its drinking water wells were contaminated with volatile organic compounds (���VOCs���), primarily TCE and PCE. In 1983, EPA listed NIBW on the NPL. The first ROD for NIBW was signed in 1988 and that was followed by the first Consent Decree in 1991. The 1991 Decree required Motorola, Inc., Siemens Corporation, SmithKline Beecham, Inc., and the Salt River Project