1981-11-13_PERMIT FILE - C1981013 ‎(48)‎

• Permit No: C1981013
• IBM Index Class Name: PERMIT FILE
• Doc Date: 11/13/1981
• Doc Name: Surface Water Control Design Data
• Section_Exhibit Name: Volume 2 Exhibit 16
• Media Type: D
• Archive: No

SECTION NARRATIVE AND REFERENCES
NOTE:
THIS SECTION IS COMPOSED OF DESIGN CRITERIA, AREA
RUNOFF AND DITCH CAPACITY CALCULATIONS OF THE
SEDIMANTATION CONTROL STRUCTURES AT THE MAXWELL MINE .
THIS REFERENCE MATERIAL IS TO BE USED WITH SECTION
2 .05.3 OF THE PERMIT AND IN CONJUNCTION WITH MAPS 13A
AND 13B.
AS A POINT OF CLARIFICATION , PONDS 002, 003 AND 004
WERE NAMED IN REFERENCE TO THEIR NPDES PFPMIT NUMBERS
FOR CONSISTANCY. AT THE MAXWELL MINE THERE IS NO POND
001 . POND 002 IS RESTRICTED TO THE SETTLEMENT OF MINE
DISCHORGE WATER ONLY , SURFACE RUNOFF IS DIVERTED FROM
ENTERING THIS POND.
REFERENCE:
CLIMATELOGICAL DATA FROM:
TECHNICAL PAPER N0. 40 RAINFALL FREQUENCY
ATLAS OF THE UNITED STATE U.S . DEPARTMENT OF
OMMEPCF , WEATHER BUREAU, 1961 )
SOIL AND WATER CONSERVATION PLANNING CIRU LA
CANYON U .S . DEPARTMENT OF AGRICULTURE , SOIL
CONSERVATION SERVICE , 1976)
HYDROLOGY FROM:
HYDROLOGY AND SEDIMENTOLOGY OF SURFACE MINED
LANDS (G.T. HAAN & B .J. BARFIELD, 1978 )
HANDBOOK OF STEEL DRAINAGE & HIGHWAY
CONSTRUCTION PRODUCTS (AMERICAN IRON AND STEEL
INSTITUTE , 1971 )
2