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Potentiometric surface map of the Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1979
Charles P. Laughlin, E. C. Hayes, George R. Schiner
1980, Open-File Report 80-69
This map presents the potentiometric surface of the Floridan aquifer in the St. Johns River Water Management District and vicinity for May 1979. The Floridan aquifer is the principal source of potable water in the area. Water-level measurements were made on approximately 1200 wells and on several springs. The potentiometric...
Aquifer recharge from the 1969 and 1978 floods in the Mojave River basin, California
Anthony Buono, David J. Lang
1980, Open-File Report 80-207
The Mojave River basin, a high desert area in southwestern San Bernardino County, Calif., received 2.3 times the normal annual precipitation during the 1969 and 1978 water years. Precipitation in the mountainous upper part of the watershed is the primary source of flow in the Mojave River. Total precipitation at...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Duck Creek, Madison, Tipton, and Hamilton counties, Indiana
Charles G. Crawford, William G. Wilber, James G. Peters
1980, Open-File Report 80-156
The Indiana State Board of Health is developing a State water-quality plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in Duck Creek was used to develop alternatives for future waste loadings that would be compatible with Indiana stream water-quality standards...
Makah Formation — A deep-marginal-basin sequence of late Eocene and Oligocene age in the northwestern Olympic Peninsula, Washington
P. D. Snavely, A. R. Niem, N. S. MacLeod, J. E. Pearl, W. W. Rau
1980, Professional Paper 1162-B
The Makah Formation of the Twin River Group crops out in a northwest-trending linear belt in the northwesternmost part of the Olympic Peninsula, Wash. This marine sequence consists of 2800 meters of predominantly thin-bedded siltstone and sandstone that encloses six distinctive newly named members--four thick-bedded amalgamated turbidite sandstone members, an...
Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Nabesna Quadrangle, Alaska
Edward H. Cobb, Donald H. Richter
1980, Open-File Report 80-927
These summaries of data on metallic and selected nonmetallic mineral occurrences and lists of selected references to them in Geological Survey, U.S. Bureau of Mines, and State of Alaska Division of Geological and Geophysical Surveys (and predecessor State and Territorial agencies) reports and maps and in one Geological Survey of...