Stage 2 - Wetness and Hairline Wall Cracks:
Basement walls wet to the touch; White powder on walls & joints, (denotes efflorescence, the leaching of lime from concrete block & mortar joints).
Stage 3 - Actual Seepage:
Floor puddles, basement seepage during moderate rain, basement flooding during prolonged rains.
State 4 - Structural Damage:
Walls buckling or bowing, visible mud or clay silt, corners shifting, floor dropping, visible structural damage.