Figure 6-1. Flood control structures.
of preventing migration of liquids from the facility, but
for leachate collection and leak detection systems are
also allowing no infiltration of liquids into the liner itself.
discussed in paragraph 6-4.
The latter requirement in effect mandates use of a
synthetic material as a primary liner at most hazardous
recommendations for various elements of the required
liner system. Although the EPA currently considers its
(2) Leachate collection and removal systems,
recommendations the minimum acceptable to ensure
capable of maintaining a leachate head no greater than 1
achievement of the performance goals set forth in the
foot, must be installed in a drainage layer above the
regulations, variations in system design are permitted
liners in all landfills and waste piles; leak detection
upon successful demonstration of
systems are also required. Specific design provisions
b. Elements of the liner system.