Walden has designed landfill caps in accord with NYSDEC 360 Regulations. Work includes capping designs, gas migration studies, liner installations, clay installations, soil testing, variances to 360 requirements based on site conditions and materials deposited. Walden also has completed capping oversight services to ensure work was completed in accord with NYSDEC approved designs. Oversight work includes permeability testing, soil teesting (moisture, dry density, compaction) and general construction oversight.