Section 41Republic Act No. 7611., Sec./Art. 41

Criteria for Establishment of Sanitary Landfill - The following shall be the minimum criteria for the establishment of sanitary landfills:

(a) Liners - a system of clay layers and/or geosynthethic membranes used to contain leachate and reduce or prevent contaminant flow to groundwater;

(b) Leachate collection and treatment system - installation of pipes at the low areas of the liner to collect leachate for storage and eventual treatment and discharge;

(c) Gas control and recovery system - a series of vertical wells or horizontal trenches containing permeable materials and perforated piping placed in the landfill to collect gas for treatment or productive use as an energy source;

(d) Groundwater monitoring well system - wells placed at an appropriate location and depth for taking water that are representative of ground water quality;

(e) Cover - two (2) forms of cover consisting of soil and geosynthetic materials to protect the waste from long-term contact with the environment:

(i) a daily cover placed over the waste at the close of each day's operations, and;

(ii) a final cover, or cap, which is the material placed over the completed landfill to control infiltration of water, gas emission to the atmosphere, and erosion.

(f) Closure procedure with the objectives of establishing low maintenance cover systems and final cover that minimizes the infiltration of precipitation into the waste. Installation of the final cover must be completed within six (6) months of the last receipt of waste;

(g) Post-closure care procedure - During this period, the landfill owner shall be responsible for providing for the general upkeep of the landfill, maintaining all of the landfill's environmental protection features, operating monitoring equipment, remediating groundwater should it become contaminated and controlling landfill gas migration or emission.