IMPERMEABLE

Before
1: S
are, more
2: SU
membrane, highly, nearly, almost, water
2: US
becomes
3: SUU
virtually
4: SUUU
relatively, practically, virtually
4: USUU
essentially
After
1: S
clay, soils, cap, rock, rocks, walls, soil, wall, base
2: SU
stratum, strata, barrier, layer, barriers, layers, boundaries, membrane, boundary, plastic, surface
3: SUU
barrier, barriers, boundaries, boundary, surfaces
3: USU
material, materials
4: USUU
material, materials
Surrounder Phrases
plastic bags, containers, liners, container, liner, gloves, clays, coating, zone, covers, cap, clay, film, materials, material, cover, surfaces, membrane, seal, barrier, membranes, soilsoverlying strata, sediments, skin, bedrock, rocks, layers, beds, rock, layer, water, soil, clay, material, surfaceclay liners, subsoil, soils, shales, liner, shale, stratum, soil, sediments, layer, layers, beds, strata, coating, surfaces, containers, seal, cap, walls, formation, core, container, surface, rocks, barrier, bodyshale bedrock, beds, layers, formation, rock, layer, bedboundary layer, layers, surfaces, zone, wall, walls, clay, surface, bedsclays clay, aresediments overlying, underlying, areouter membrane, layer, layers, surfaces, walls, coating, surface, wall, boundary, membranes, clothing, core, skin, boundaries, zone, borders, container, barrier, cover, dense, sealstrata overlying, underlyingbottom sediments, layer, liner, surfaces, layers, boundary, stratum, borders, strata, surface, horizontalskin overlying, barrier, surface, surfaces, layers, cap, bags, becomes, layer, gloves, clothingsubsoil layers, layer, waterunderlying bedrock, strata, sediments, stratum, structure, layers, rocks, layer, rock, soil, beds, soilsrock strata, layers, surfaces, bottom, walls, formation, overlying, wall, stratum, beds, surface, layer, materialsoils overlying, are, soilbedrock surfaces, surface, underlying, structuremembrane liners, overlying, liner, surfaces, surface, barrier, zone, coating, structure, formation, barriers, becomes, material, covers, layers, materialsbarrier coating, layer, layers, membranes, membrane, formation, zone, materialsrigid plastic, boundaries, body, containers, container, boundary, structure, barriers, barrier, walls, wall, outer, surfaces, surface, horizontalrocks overlying, arehorizontal strata, layers, surfaces, surface, beds, layer, boundaries, boundarysurface layer, area, coating, layers, sediments, water, soils, membrane, soil, membranes, structure, barrier, boundary, areas, overlying, filmlayer overlying, clays, coating, structure, formation, covers, becomesdense core, layer, layers, coating, membranes, cover, beds, material, concrete, clay, soils, outer, membrane, materials, rock, rocks, zone, bodyalmost totallycoating layer, materials, material, layers, film, surfaces, surface, formationseed beds, coating, bed, layer, formation, bagsless dense, rigidfairly rigid, densesoil clays, layers, liners, surface, layer, strata, liner, overlying, formation, stratum, water, cover, surfaces, structure, seed, zoneconcrete walls, wall, surfaces, cover, barrier, barriers, structure, base, materials, core, surface, coating, containerssufficiently dense, rigid, concretefilm coating, formationgenerally considered, lessremain largely, relatively, essentially, fairly, virtually, absolutely, totally, practically, highly, sufficientlycap rock, layer, rocks, covers, layers, structurerelatively dense, rigid, lesszone boundary, boundaries, covers, soilswall surfaces, rocks, layers, boundary, surface, rockbed covers, sediments, coating, rockabsolutely rigidcontainer walls, wallnearly horizontalliner materials, material, wall, surfacemore effectively, generally, rigid, dense, concreteseal rocks, skin, rock, surfacesbody bags, surface, wall, becomes, surfacescovers virtually, nearly, practically, almostwater containers, surface, container, seal, sedimentsbecome more, sufficiently, totally, less, virtually, rigid, highly, practicallybecomes less, more, sufficiently, totally, rigid, absolutely, practically, virtually, highlynormally considered, coverscore areas, material, area, zone, sediments, layerseemingly rigidare generally, essentially, normally, considered, relatively, highly, sufficiently, largely, fairlybase layer, materialbeing considered, totallyotherwise remain, seeminglyshales aremembranes arematerial overlyingconsidered sufficientlysurfaces arearea overlying, coversessentially horizontalliners arehighly densetotally rigideffectively sealbarriers remainbeds arerather rigidcontainers arematerials are