South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-107 - Solid Waste Management
Subchapter 61-107.19 - SOLID WASTE. MANAGEMENT: SOLID WASTE LANDFILLS AND STRUCTURAL FILL
Part IV - Class Two Landfills
Section 61-107.19.IV.F - Closure and Post-Closure Care
Universal Citation: SC Code Regs 61-107.19.IV.F
Current through Register Vol. 48, No. 9, September 27, 2024
1. Closure. The termination of disposal operations at a Class Two landfill, whether the entire landfill site or a portion thereof, shall be in compliance with the following requirements.
a. Within one month following the last
receipt of solid waste at a site or a part of the site, the application of
final cover shall begin. A two foot thick final earth cover is required with at
least a 3% but not greater than 5% surface slope, graded to promote positive
drainage. The side slope cover shall not exceed three horizontal feet to one
vertical foot, i.e., a 3:1 slope. Alternate final cover designs may be
submitted for Department review and approval. Unless otherwise approved by the
Department, the application of final cover shall be completed within six months
of the last receipt of solid waste at the facility. The integrity of the final
cover shall be maintained.
b.
Testing for certification of cap closure by a South Carolina certified
professional engineer shall be done at a rate of four thickness tests per acre
as defined by best engineering and construction practices.
c. The storm water conveyance system for the
landfill shall be designed to ensure that the system is capable of handling a
24-hour, 25-year storm event during the active life and post-closure period of
the landfill.
d. The finished
surface of the disposal area shall be seeded with native grasses or other
suitable ground cover within 15 days of the completion of that portion of the
landfill.
e. Within 15 days of
closure of the entire landfill, the permittee shall post signs at the landfill
that state the facility is no longer in operation. On-site landfills are exempt
from this requirement.
f. Upon
closure of the entire or a portion of the landfill and within 30 days of
grading and seeding, pursuant to Section F.1.d. above, a professional engineer
licensed in the State of South Carolina shall submit to the Department
certification that the landfill has been properly closed in accordance with
requirements outlined in this Part and the facility's permit. Upon receipt of
certification of closure, the Department will schedule an inspection of the
facility. Upon issuance of the Department's final closure approval, the
Department's permit for this facility shall be modified to incorporate
post-closure activities.
g. Within
30 days of the Department's issuance of final closure approval, the owner
shall:
(1) Using a form approved by the
Department, record with the appropriate Register of Deeds a notation in the
record of ownership of the property - or some other instrument that is normally
examined during title search - that will in perpetuity notify any potential
purchaser of the property, that the land or a portion thereof, was used for the
disposal of solid waste. This notation shall define the final boundaries of the
waste disposal area including the latitude and longitude, and identify the
type, location, and quantity of solid waste disposed of on the property;
and,
(2) Submit to the Department:
(a) A plat showing the final boundaries of
the waste disposal area of the closed landfill; and,
(b) A copy of the document in which the
notation required by Section F.1.g. (1) above has been placed.
2. Post-closure Care Requirements.
a. Following
closure of each Class Two landfill, the permittee shall conduct post-closure
care. Post-closure care shall be conducted for a minimum of 20 years, except as
provided under Subsection b.2.below, and consist of at least the following:
(1) Maintaining the integrity and
effectiveness of any final cover, including making repairs to the cover as
necessary to correct the effects of settlement, subsidence, erosion, or other
events, and preventing run-on and run-off from eroding or otherwise damaging
the final cover. A 75% or greater vegetative ground cover with no substantial
bare spots shall be established and maintained throughout the post-closure
period; and,
(2) Monitoring the
groundwater in accordance with the requirements of Section E of this Part and
maintaining the groundwater monitoring system. Groundwater monitoring data
shall be submitted to the Department during the post-closure care period within
60 days of sample collection.
b. The length of the post-closure care period
may be:
(1) Increased by the Department if the
Department determines that the lengthened period is necessary to protect human
health and the environment or the facility has groundwater impacts remaining at
the end of the post-closure period;
(2) Decreased by the Department if the
permittee can provide technical rationale that the decreased post-closure care
period is sufficient to protect human health and the environment.
c. The permittee of all Class Two
landfills shall prepare a written post-closure plan that includes, at a
minimum, the following information:
(1) A
description of the monitoring and maintenance activities required in Item 2.a..
above for each Class Two landfill;
(2) Name, address, and telephone number of
the person or office to contact about the facility during the post-closure
period; and,
(3) A description of
the planned uses of the property during the post-closure period. Post-closure
use of the property shall not disturb the integrity of the final cover, or any
other components of the containment system, or the function of the monitoring
systems unless necessary to comply with the requirements of this regulation.
The Department may approve any other disturbance of the containment system if
the permittee demonstrates that disturbance of the final cover, or other
component of the containment system, including any removal of waste, will not
increase the potential threat to human health or the environment.
d. Prior to permit issuance, the
permittee shall submit to the Department a post-closure plan for review and
approval. The post-closure plan shall be updated if any changes occur at the
facility which require a deviation from the approved post-closure
plan.
e. Following completion of
the post-closure care period for each Class Two landfill, the permittee shall
submit to the Department certification, signed by a South Carolina registered
professional engineer other than the design engineer, verifying that
post-closure care has been completed in accordance with the post-closure
plan.
Disclaimer: These regulations may not be the most recent version. South Carolina may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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