SurfMin; overburden analysis

OSM Library Number: 180 Date to NTIS: 11/27/89

NTIS Accession No: PB90-153636 NTIS List Price: 15.00

CFR Citation: 30 CFR 816.13-816.15

Title of Report:

NON-CONTAMINATING DRILLING GREASE FOR OVERBURDEN SAMPLING (1983). 31 pp.

Performing Organization Name and Address:

Montana State University, Bozeman, MT 59717

Type of Report: Final Report

Abstract:

Report provides information on analyses, chemical composition, and physical

performance of drilling greases. During premine environmental studies,

overburden samples were collected from drill holes and chemically analyzed to

identify geological zones unsuitable for root zone and aquifer reestablishment.

Spacial greases high in metal content were used on drill pipe sections and

occasionally mixed with overburden samples causing contamination. Two greases

developed in studies that will not contaminate overburden samples are

recommended and several acceptable commercial greases.

Keywords:

OVERBURDEN ANALYSIS

GEOLOGIC ZONES

AQUIFER REESTABLISHMENT

Author(s): Dollhopf, D.J., Goering, J.D.

OSM Library Number: 482 Date to NTIS: 11/17/89

NTIS Accession No: PB90-148966 NTIS List Price: 31.00

CFR Citation: 30 CFR 816.104-816.105

Title of Report:

IMPROVEMENT OF OVERBURDEN ANALYTICAL TECHNOLOGY (1986). 295 pp.

Performing Organization Name and Address:

Engineers International, Inc., Westmont, IL 60559

Type of Report: Final Report

Abstract:

U.S. coal basins are divided in 7 reclamation subregions and 3 major regions for

purposes of study. Eastern U.S. coal region is characterized by acid mine

drainage problems and premine prediction of this problem by using overburden

analysis techniques that are controversial. Measurement of sodicity, in

particular use of Sodium Adsorption Ratio v. Exchangeable Sodium Percentage

methods, is controversial in the western U.S. and is presented in this report.

A major contribution of this study has been the development of overburden

standards (wide range of coal basin lithologies).

Keywords:

OVERBURDEN ANALYSIS

FIELD TEST EFFECTIVENESS

PRE-MINE PLAN

Author(s):

Bogner, J.E.

Laurito, A.W.

Sobek, A.A.

Sullivan, P.J.

OSM Library Number: 588 Date to NTIS: 10/17/90

NTIS Accession No: PB9l-106682 NTIS List Price: 17.00

CFR Citation: 30 CFR 816.22, 816.200

Title of Report:

EFFECTS OF CONTROLLED OVERBURDEN PLACEMENT ON TOPSOIL SUBSTITUTE QUALITY AND

BOND RELEASE: PHASE III (1990). 88 pp.

Performing Organization Name and Address:

Virginia Polytechnic Institute & State University, Blacksburg VA 24601

Type of Report: Final Report

Abstract:

Findings leave little doubt that carefully selected overburden materials can be

used to form productive topsoil substitutes in Appalachian region. As long as

potentially acid-forming materials are eliminated from consideration, carefully

selected, graded and amended overburden materials can serve as topsoil

substitute materials over and beyond the 5-year bond period. In the absence of

organic amendments, the establishment and maintenance of a vigorous legume

component in the forage stand is crucial.

Keywords:

OVERBURDEN ANALYSIS

TOPSOIL SUBSTITUTE

PLANT COMMUNITIES

Author(s):

Burger, James

Daniels, W. Lee

Haering, Kathyrn

Torbert, John

OSM Library Number: 594 Date to NTIS: 09/09/91

NTIS Accession No: NTIS List Price: 0.00

CFR Citation: 30 CFR 780.22 - 816.102

Title of Report:

TABULATION, EVALUATION AND CORRELATION OF PREMINE CORE DATA FROM SELECTED TEXAS

COAL MINING PERMIT APPLICATIONS (1989). 259 pp.

Performing Organization Name and Address:

Railroad Commission of Texas, Austin, TX 78711

Type of Report: Final Report

Abstract:

Baseline physiochemical overburden data from mine sites is provided to Railroad

Commission of Texas in the permit applications. Study accomplished the

following: 1) Input of overburden data into a common database. 2) Evaluation

of data through correlations between specific parameters. 3) Recommendations

about future topics of study in this area to expedite permit review and increase

the quality of the data acquisition. Over 170,000 inputs have been accessed

into a database from 162 overburden cores analyzed from 1981 to 1987. In

addition methods, materials, and results are discussed in this report.

Keywords:

OVERBURDEN ANALYSIS

OVERBURDEN GEOCHEMISTRY

TEXAS SOILS

Author(s):

Askenasy, Paul E.

Baker, William H.

NTIS Accession No: NTIS List Price:

Title of Report:

SENSITIVITY ANALYSIS OF LABORATORY BASED MINE OVERBURDEN ANALYTICAL TECHNIQUES

FOR THE PREDICTION OF ACIDIC MINE DRAINAGE (September 1995) 267pp.

Performing Organization Name and Address:

Department of Geological Sciences; University of South Carolina

Type of Report: Final research report

Abstract:

A three part sensitivity analysis was conducted to evaluate commonly used mine

overburden analytical techniques. The primary objectives of the study were:

(1)Identify and evaluate the effects of variability in mine overburden

geochemistry, as measured by pyrite weight percent and neutralization potential

(NP), on variability of contaminant production.

(2)Determine which acid/base accounting interpretation technique best predicts

both qualitative and quantitative leachate quality in laboratory analytical

testing.

(3)Identify the predominant factors of weathering cells, soxhlet extraction, and

column leaching tests, and evaluate variability of contaminant production due to

variations in: storage conditions, leachant temperature, particle size, particle

sorting efficiency, and leaching interval.

Acid/base accounting (ABA) data were compared to weathering (humidity) cell

leachate data from 83 coal mine overburden samples. Neutralization ratios of 19

resulted in no type I acid base accounting errors, i.e. those in which an

overburden sample is classified as alkaline, but actually produces acid; and in

55 type II errors, i.e. those in which an overburden sample is classified as

acidic but actually produces alkaline leachate. The neutralization potential

(NP) threshold for 100% confidence of alkaline leachate was 73.1%. Leachate

quality comparisons between weathering cells and columns were dominated by

particle size effects which controlled the rate of water movement through the

overburden material.

Keywords:

Overburden

Soil toxicity

Acid mine drainage

Author(s)

William S. Bradham and Frank T. Caruccio