01445oam 2200421Ia 450 991069745170332120080828181518.0(CKB)5470000002388425(OCoLC)48146736(EXLCZ)99547000000238842520011015d2001 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe National Water-Quality Assessment Program[electronic resource] entering a new decade of investigations /[by Robert J. Gilliom, Pixie A. Hamilton, and Timothy L. Miller][Reston, Va.] :[U.S. Geological Survey],[2001]6 unnumbered pages digital, PDF fileUSGS fact sheet ;071-01Title from title screen (viewed on Aug. 26, 2008)."July 2001."National Water-Quality Assessment Program Water quality managementUnited StatesWater quality managementGilliom Robert J1384354Hamilton Pixie A1387204Miller Timothy L(Timothy Lee),1950-1416441Geological Survey (U.S.)GISGISOCLOCLCQGPOBOOK9910697451703321The National Water-Quality Assessment Program3521749UNINA