[Code of Federal Regulations]
[Title 40, Volume 24]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR264.310]

[Page 347-348]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 264_STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, 
STORAGE, AND DISPOSAL FACILITIES--Table of Contents
 
                           Subpart N_Landfills
 
Sec. 264.310  Closure and post-closure care.

    (a) At final closure of the landfill or upon closure of any cell, 
the owner or operator must cover the landfill or cell with a final cover 
designed and constructed to:
    (1) Provide long-term minimization of migration of liquids through 
the closed landfill;
    (2) Function with minimum maintenance;
    (3) Promote drainage and minimize erosion or abrasion of the cover;
    (4) Accommodate settling and subsidence so that the cover's 
integrity is maintained; and
    (5) Have a permeability less than or equal to the permeability of 
any bottom liner system or natural subsoils present.
    (b) After final closure, the owner or operator must comply with all 
post-closure requirements contained in Sec. Sec. 264.117 through 
264.120, including maintenance and monitoring throughout the post-
closure care period (specified in the permit under Sec. 264.117). The 
owner or operator must:
    (1) Maintain the integrity and effectiveness of the final cover, 
including making repairs to the cap as necessary to correct the effects 
of settling, subsidence, erosion, or other events;
    (2) Continue to operate the leachate collection and removal system 
until leachate is no longer detected;
    (3) Maintain and monitor the leak detection system in accordance 
with Sec. Sec. 264.301(c)(3)(iv) and (4) and 264.303(c), and comply 
with all other applicable

[[Page 348]]

leak detection system requirements of this part;
    (4) Maintain and monitor the ground-water monitoring system and 
comply with all other applicable requirements of subpart F of this part;
    (5) Prevent run-on and run-off from eroding or otherwise damaging 
the final cover; and
    (6) Protect and maintain surveyed benchmarks used in complying with 
Sec. 264.309.

[47 FR 32365, July 26, 1982, as amended at 50 FR 28748, July 15, 1985; 
57 FR 3491, Jan. 29, 1992]