Water resources data for Puerto Rico.

Issued in 3 pts.: pt. 1, Surface water records, pt. 2 and pt. 3, Water quality records and ground water records.Pt. 1 annual; pts. 2-3 irregular.Mode of access: Internet.Vols. for 1968-<71> prepared in cooperation with Puerto Rico Aqueduct and Sewer Authority and similar agencies

Characterization of springflow in the north coast limestone of Puerto Rico using physical, chemical, and stable isotopic methods /

One folded leaf of ill. in pocket."Prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority."Includes bibliographical references (p. 52-53).Mode of access: Internet

Low-flow characteristics at selected sites on streams in northern and central Puerto Rico /

Includes bibliographical references (p. 10).Mode of access: Internet

Real-time rainfall-runoff model of the Carraízo-Reservoir Basin in Puerto Rico /

Includes bibliographical references (p. 65-66).Mode of access: Internet

Ground-water resources of alluvial valleys in northeastern Puerto Rico : Río Espíritu Santo to Río Demajagua area /

Two maps on folded leaves in pocket.Shipping list no.: 97-0254-P.Includes bibliographical references (p. 24-25).Mode of access: Internet

Effects of land use on upland erosion, sediment transport, and reservoir sedimentation, Lago Loíza Basin, Puerto Rico /

One map on 1 folded leaf laid in.Includes bibliographical references (p. 51-54).Mode of access: Internet

Geochemistry and hydrogeologic framework of the saline-freshwater interface and the calculation of net recharge in the Dorado area, north-central Puerto Rico /

Shipping list no.: 99-0162-P.Includes bibliographical references (p. 33-36).Mode of access: Internet

Flood of September 22, 1998, in Arecibo and Utuado, Puerto Rico /

Two maps on 2 folded sheets in pocket.Shipping list no.: 2002-0144-P.Includes bibliographical references (p. 23).Mode of access: Internet

Hydrogeology and ground-water/surface-water relations in the Bajura area of the Municipio of Cabo Rojo, southwestern Puerto Rico /

Shipping list no.: 96-0241-P.Includes bibliographical references (p. 31).Mode of access: Internet

Sedimentation survey of Lago de Cidra, Puerto Rico, November 1997 /

One map on folded leaf in pocket.Shipping list no.: 2000-0008-P.Includes bibliographical references (p. 19).Mode of access: Internet