U.S. Geological Survey

National Water-Quality Assessment Program

Fiscal Year 1994 Study Units

This group of study units started in fiscal year 1994:

• Allegheny and Monongahela Basins (#9 on map)
• Central Arizona Basins (#49)
• Eastern Iowa Basins (#30)
• Kanawha-New River Basin (#10)
• Lake Erie-Lake Saint Clair Drainage (#11)
• Long Island and New Jersey Coastal Drainages (#4)
• Lower Illinois River Basin (#15)
• Mississippi Embayment (#27)
• Puget Sound Basin (#52)
• Sacramento Basin (#54)
• Santee Basin and Coastal Drainages (#21)
• South Central Texas (#34)
• Southern Florida (#24)
• Upper Colorado River Basin (#44)
• Upper Mississippi River Basin (#17)
• Upper Tennessee River Basin (#20)