Geosynthetics August/September 2020 - 27

allowed maximum 1-inch (2.5-cm)
subgrade protrusions (but not sharp
objects), as approved by the quality
assurance engineer; final cover placement required a maximum equipment
ground pressure of 5 psi (34.5 kPa) during placement of a 12-inch (30.5-cm) or
18-inch (45.7-cm) lift thickness, and the
specifications for final cover soil stated,
"Final cover soil shall be a soil matrix
which shall not have rocks exceeding 9
in (23 cm) in any dimension."
The final cover specifications (based
on the test pad evaluations), the test pad
report, and the design report for the
landfill final cover system were submitted to WVDEP in December 2016 and

approved by WVDEP. Construction of
the IDS geomembrane final cover was
initiated in 2018, and more than 16 acres
(6.5 ha) have been constructed to date.
References
Balsamo, N. J; Massey-Norton, J.; Klamut, J.; Queen,
T.; Straley, C.; and Lehner, M. (2019). "CCR landfill final
cover test pad." Proc., The World of Coal Ash Conference
2019, University of Kentucky, Center for Applied
Energy Research, Ash Library. http://www.flyash.
info/2019/072-paper.pdf (Accessed 5/29/2020)

>> For more, search "test pad"
at www.GeosyntheticsMagazine.com.

	

Code of Federal Regulations (CFR). (2015). 40 CFR Part
257.102, "Criteria for conducting the closure or retrofit of
coal combustion residual (CCR) units," April 17 (EPA rule).
Geosynthetic Research Institute (GRI) (2012). GRI
Guide GS11, "Standard guide for constructing test
pads to assess protection materials intended to avoid
geomembrane puncture," Oct. 19. https://geosyntheticinstitute.org/grispecs/gs11.pdf (Accessed 5/29/2020) G

www.GeosyntheticsMagazine.com

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http://www.GeosyntheticsMagazine.com http://www.flyash https://geosynthetic http://www.institute.org/grispecs/gs11.pdf http://www.esiliners.com http://www.GeosyntheticsMagazine.com

Geosynthetics August/September 2020

Table of Contents for the Digital Edition of Geosynthetics August/September 2020

Geosynthetics August/September 2020 - Cover1
Geosynthetics August/September 2020 - Cover2
Geosynthetics August/September 2020 - 1
Geosynthetics August/September 2020 - 2
Geosynthetics August/September 2020 - 3
Geosynthetics August/September 2020 - 4
Geosynthetics August/September 2020 - 5
Geosynthetics August/September 2020 - 6
Geosynthetics August/September 2020 - 7
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Geosynthetics August/September 2020 - 16
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Geosynthetics August/September 2020 - 18
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Geosynthetics August/September 2020 - 20
Geosynthetics August/September 2020 - 21
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Geosynthetics August/September 2020 - 25
Geosynthetics August/September 2020 - 26
Geosynthetics August/September 2020 - 27
Geosynthetics August/September 2020 - 28
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Geosynthetics August/September 2020 - 35
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Geosynthetics August/September 2020 - 37
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Geosynthetics August/September 2020 - 44
Geosynthetics August/September 2020 - 45
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Geosynthetics August/September 2020 - 48
Geosynthetics August/September 2020 - Cover3
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