Johnson, William N. <br/><br/>
Water quality considerations for highway planning and construction 1-70 Vail Pass, Colorado / 
by William N. Johnson and R. Scott Fifer 
 - Colorado :  U.S. Forest Service,  [n.d.] 
 - 54 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality managementes--United States<br/>Sewage--Purification--United States
<br/><br/><label>Dewey Class. No.: </label>628.1680973