National Ground Water Contamination Research Act of 1986

Title I: Authorization - Authorizes the Secretary of the Interior to undertake research, investigations, appraisals, surveys, and related activities of the Nation's water resources. Authorizes the Secretary to cooperate with other government agencies and to perform such activities on a reimbursable basis, as specified. Authorizes appropriations for FY 1988 and 1989.

Title II: National Ground Water Contamination Research - National Ground Water Contamination Research Act of 1986 - Makes the Secretary of the Interior primarily responsible at the Federal level for collecting, analyzing, and disseminating information concerning the state of the Nation's groundwater. Requires the Secretary to report within two years to specified congressional committees and the States on the condition of the Nation's groundwater. Requires that such report be accompanied by an independent evaluation by the Association of State and Interstate Water Pollution Control Administrators.

Directs the Secretary to establish a national groundwater quality assessment program within three years of enactment. Requires such program to coordinate government efforts in such area, establish uniform data collection, and provide information and assistance as required.

Directs the Secretary to establish a national groundwater clearinghouse within one year of enactment.

Requires the Secretary to establish a technical assistance program within one year of enactment to serve other Federal and governmental agencies.

Amends the Water Resources Research Act of 1984 to make conforming changes.

Authorizes appropriations for such programs for two fiscal years.