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Estimated Slope
<br /> Fail Line Elevation
<br /> Powell Gravel Pit Area Estimated Gain Slope Run
<br /> Aces (fl) Es[irtuted(R) Overall Min,Max
<br /> Main Hill,Undisturbed 1.15 1041.3 420 2.4671 1.1,3.1
<br /> South Hill,Undisturbed 0.06 67.9 30 2.26/1 2.2,2.4
<br /> M 1995012 Disturb Steep.,,
<br /> Arco(Be for.
<br /> /Mi.d At ) 0.97 1120.8 576 1.NA 0.7 3.4
<br /> 5twwpwst nisturbed/MinwA Arwa 0.77 NA NA NA Nq
<br /> The Main Ililt Undisturbed and the Disturbed/Mined Area share one fall line on the common border.
<br /> The estimated slopes are derived from the 1995 survey and the accuracy of the slopes is dependant upon
<br /> Slope of Hills the quality of the survey. No field validation of the slopes was done.
<br /> Both Natural-North Side Of Hill, South Hill =Powell Gravel Pit Boundary,9.99 acres
<br /> ...
<br /> And Dv Re RDE Vista Del Sol Ranch Boundary
<br /> Areas Mined In The Early 1970's I I """"""" 10 ft Elevation Contours From 1995 Land Survey
<br /> / Undisturbed Area,Esitmated Slope(1.15 acres)
<br /> Contours From: 1995 Land/Boundary Survey /
<br /> 1 South Hill Undisturbed Area,Esitmated Slope(0.06 acres)
<br /> J. 9 ACRES
<br /> Run Is Displayed At Fall Line i O Disturbed Area,Estimated Slope(0.92 acres)
<br /> �sgto TOP- Reclamation Area 2016-17(1.03 acres)
<br /> >� SOIL -----_.
<br /> ` -- - Steep Area,After 2016 Reclaim(0.27 acres)
<br /> t ,
<br /> 3
<br /> Roads
<br /> Fall Line
<br /> ..orosco 6D5
<br /> ....»e..,
<br /> p emeral/Intermittent Waterway
<br /> } , v
<br /> Note
<br /> The estimated slopes were derived from the 1995
<br /> ' nt Dry W rwa
<br /> "' _ o,• "��!" � p � land survey. There was no ground
<br /> _ truth done,hence there is the possibility of error. It is not known how well the survey
<br /> sloo.,,�/-}+, I I '•/ '�•, represents the contours that were used in determining the elevation change along a fall
<br /> 0
<br /> o,' line. Horizontal distances were estimated using ESRI's ArcMap software.
<br /> )considerable
<br /> quantity of fill would be needed to give the steepest area a 211 or gentler
<br /> _ » slope. the hill
<br /> is ever mined again the current landowner an operator
<br /> pit o erato will submit a
<br /> ••'^••""••. •- _ .•J revised reclamation plan that details acontouring plan with quantities of fill and other
<br /> elements of a robust reclamation. It has been suggested that any possible future
<br /> -' ••............ �'-•• i' - �. reclamation cost be incorporated into the pricing structure of any product that is sold.
<br /> ..............................
<br /> ao 0
<br /> ' - .00so. �\ It Is also recommended that 10m DEM data,USGS geological strike and dip slope
<br /> t x•......., v v •� O
<br /> u information, contour Imes from the 1995 land survey, visual observation of the
<br /> —� the I land f both similarity with
<br /> PROPOSED �'
<br /> surrounding area,an atopography surveye..,rota station ,are combined to
<br /> determine what a future contouring would look Ike if needed under a new mining and
<br /> operation scenario. Currently the land form on the pit has considerable � rit w
<br /> CRUSHER a surrounding natural an arms in of and r t a ding na slope a rocky outcroppings.
<br /> 603o PROPOSEDo
<br /> ASPHALT ,'The designated final use of the pit is agricultural and is currently grazed. The reclaimed
<br /> \ PLANT dy,,o i long easterly facing ridge,has a slope that will provide the Vista Del Sol ranch with an
<br /> acre of grazing after the planted grasses and shrubs mature. Reclaiming the steepest
<br /> MINING I portion of the hill would not provide the quality of the grazing that the 2016 reclaim
<br /> DIRECTION would. It would be steeper and less desirable for the following reasons:is south facing
<br /> '`:---•- °+ s -�/ and as such would be effectively drier,would be difficult to establish and produce quality
<br /> forage, livestock normally prefer gentler terrain, and would be prone to erosion
<br /> especially during the typical summer monsoonal cloud burst.
<br /> y W GH
<br /> $a ST ION Caution is advised. All layers lM1 p e from,
<br /> / !\ \ PROPOSMATERIAL
<br /> nr tr d/dgt demn and
<br /> d f m
<br /> ' MATERIAL d P G p
<br /> �6019,. n i p vet y.
<br /> f _ STOCKPILES s� h 1995 land vrRey.
<br /> _ y ........................._....._.................................-_..........._.............--The map'does-riot rep�eseM,....
<br /> '•••' •• or provide,survey grade boundaries.
<br /> _ '•.5 p9'4tY49-W 9Sa.lW � �jC
<br /> '- 'rt 3 Refer to the 1995 land survey
<br /> '_•.••„•.•'......••.•.•• -_ Y for the legal boundary description
<br /> _.........._............................................_. . N and rimer details.
<br /> A
<br /> W+E AN shapelil anderepresvIsdilented n this map,
<br /> Feet are-NAD83 UTM zonel2N.
<br /> 100 50 0 100 7Dr1 3q1 41x1 5 )00 aql 91N1 1,000 1,1110
<br /> !!!0 S
<br /> trio Y:u Del S.1 Renrn
<br /> -� P' �..... .�. AneT
<br /> N.
<br /> � By.Orin 9 Was, y ,Ws,n.nv�l�om
<br /> Page 6 M 8'. .v
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