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Janet Hren

4 cilt bulundu.

Cilt sonuçları

GroundwaterChanges in ground-water quality resulting from surface coal mining of a small watershed in Jefferson County, OhioJanet Hren

Changes in ground-water quality resulting from surface coal mining of a small watershed in Jefferson County, Ohio

Janet Hren · U.S. Dept. of the Interior, Geological Survey

38 sayfa · 1986

Coal mines and mining / Environmental aspects / Environmental aspects of Coal mines and mining / Environmental aspects of Strip mining / Groundwater

MeasurementWater-quality data-collection activities in Colorado and OhioJanet Hren

Water-quality data-collection activities in Colorado and Ohio

Janet Hren · U.S. G.P.O.

Sayfa sayısı yok · 1987

Water quality / Measurement

Reclamation of landA statistical approach to evaluate the relation of coal mining, land reclamation, and surface-water quality in OhioJanet Hren

A statistical approach to evaluate the relation of coal mining, land reclamation, and surface-water quality in Ohio

Janet Hren · Open-File Services Section, Western Distribution Branch, U.S. Geological Survey

325 sayfa · 1984

Coal mines and mining / Environmental aspects / Environmental aspects of Coal mines and mining / Environmental aspects of Reclamation of land / Reclamation of land

Water qualityPotential impacts of a proposed reservoir on hydrologic and water-quality conditions in Little Rush Creek watershed, Fairfield County, OhioJanet Hren

Potential impacts of a proposed reservoir on hydrologic and water-quality conditions in Little Rush Creek watershed, Fairfield County, Ohio

Janet Hren · The Survey

Sayfa sayısı yok · 1982

Water quality