PERMFILE67486

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TAB 09 SOIL BASELINE STUDY
• Media Type: D
• Archive: No

TABLE 1
Parameter, Procedure, and Reference Llst Used for
Soil Semple Analysis, Yoast Development Area, Routt County, t:olorado
Parameter-Units Procedure-Reference
Sample Preparation
Subsampling less than 2 mm fraction
Rock fragment content percent by volume
Preparation of saturation extract and saturation
percentage determination
pH (determination using saturated paste)
Conductivity of saturation extract in mmhos/cm at
25°C
soluble calcium, magnesium, and sodium in
meq/I
Sodium Adsorption Ratio
Exchangeable Sodium percentage (determined if
SAR is greater than 10)
Organic Matter in percent
Carbonate in percent
Particle size analysis in percent sand, silt, and
clay
Textural class'rfication
Sand Fractionation (very fine)
Samples were air dried at less than 35°C. Clods
were broken up prior to grinding and sieving the
sample. Large rock fragments were removed
and weighed. Sample material was sieved.
Remaining rock fragments left on the 10 mesh
(2 mm) sieve were removed and weighed.
Remaining soil clods left on the 10 mesh screen
were ground until the sample just passed the
screen. Excessive grinding of sample material
was avoided during the entire sample
preparation procedure.
U.S. Salinity Lab (1969), Method 1.
SCS Soil Survey Investigation Report No. 1,
Method 3B, page 18.
ASA Mono. No. 9, Part 2, (2 ed). 1982.
Method 10-2.3.1, page 169.
ASA Mono. No. 9, Part 2, (2 ed). 1982. Method
10-3.2, page 171. pH pertormed on saturation
paste, method 10-2.3.1, page 169.
ASA Mono. No. 9, Part 2, (2 ed). 1982. Method
10-3.3, pages 172-173. Use saturation paste
extract.
ASA Mono. No. 9, Part 2, (2 ed). 1982. Method
10-3.4. pages 173-174.
U.S. Salinity Lab (1969), p. 26.
U.S. Salinity Lab (1969), p. 26.
For OM <7.0%: CSU Tech Bulletin LT 888-2
(1988)
For OM > 7.0%: Storer (1984)
ASA Mono. No. 9, Part 2, (2 ed). 1982. Method
11-2.4, pages 188-191.
Hydrometer method. Black et al. 1965.
Methods of soil analysis. ASA Mono No. 9,
Part 1, method 43-5, pages 562-566.
USDA (1951), p. 209.
ASA Mono. No. 9, Part 1, (2 ed). 1986.
Method 15-5.2.4, Pages 405 and 406.

•
•
14