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TABLE 2.04.6-3 <br />CRITERIA FOR EVALUATING OVERBURDEN, tNTERBURDE3N, UNDERBURDEN, <br />REGRADED SPOILS SUITABILITY <br />NEW HORIZON 2, MONTROSE COUNTY, COLORADO -MARCH 1998 <br /> <br /> MARGINALLY UNSUITABLE EXCEPT <br />PARAMETER SUITABLE SUITABLE WITH AMEILORATION <br /> <br />PH z5.5' 4.5-5.4' <4.5 <br />Salanity (mmhos/cm)° s8 912' >72 <br />Saturation Percentage (%) <658 <br />>25° z85 <br />525 <br />Sodium Adsorptlon° Ratio s1710 <br />5141D 12.18 <br />15-22 >781° <br />>22" <br />Exchangeable SOdium° <br />Percentage (%) s15" <br />578" i6-18 <br />79-22 >78°' <br />>221e <br />Particle Size (texture)' Is, sl, I", sill, scl, <br />cl, sicl c, sc,15 sic, si, s c, sc, sic,tfi with 50% C m-CO s <br />Boron (ppm) 0.5-5" <0.5 >5" <br />Molybdenum (ppm)1° s75" 0.6.2.0 >2.0.6SD <br />Selenium (ppm) s0.7" 0.2-0.5 >0.5" <br />Nitrate Nitrogen (ppm) 70.50" 50.60 >60'~ <br />Ammonium Nitrogen (ppm) <16015 <10 >16035 <br />Acid•Base Potential >•536 >-536 <br />Manganese (ppm) 1.70" <i >70 <br />Iron (ppm) 5.300tB <S >300 <br />Zinc (ppm) 1.70" <1 >70 <br /> <br />PARAMETER <br />SUITABLE MARGINALLY <br />SUITABLE UNSUITABLE EXCEPT WITH <br />AMEILORATION <br />Copper (ppm) 0.2.303A <0.2 >30 <br />Nickel (ppm) <2.03° 2.20 >20 <br />Selenium (ppm) <0.2jO 0.2-0.5 >0.5" <br />Arsenic (ppm) <2.032 >2.0 <br />Cadmium (pm) <533 >5 <br />Mercury (ppm) <0.534 >0.5 <br />• Revised z7 Aug 2ooz 25 <br />