cartago(province) casestudies clay congresses constructedwetlands costarica developingcountries environmentalaspects environmentalimpactanalysis factoryandtradewaste groundwater hazardouswastes incineration indianreservations integratedsolidwastemanagement leaching linings location pollution puntarenas refuseandrefusedisposal refusedisposalfacilities sanjosémetropolitanarea soilmechanics unitedstates