Abstract: A system and method for remediating contaminated surfaces in order to reoccupy sites in which such impacted surfaces are contained is disclosed. The systems and methods include forming a first barrier substantially over a surface, the first barrier comprising a first solvent-resistant coating and having a first color, forming a second barrier substantially over the first barrier, the second barrier comprising a second solvent-resistant coating and having a second color, and providing an overlay over the second barrier, the overlay comprising an upper covering, a lower covering and a plurality of support members, wherein each of the plurality of support members have a distal end and proximal end, and the support, members are connected to the upper covering at the distal end, and to the lower covering at the proximal end. Utility lines, telephone line, cable cords, ductwork, etc.

Abstract: An tubular member intermediately mounted on a gun between the shooter and a distally mounted gun sight or gun sight distal indicator, having a reflective internal surface which provides a specific reflection (e.g. a uniform circle) of and concentric with the distal sight or indicator when the gun is aligned to hit the target on which the distal indicator is centered. Alternate embodiments provide an illuminated distal indicator, and an indicator which itself shows an enhanced characteristic, such as intensity or visibility of the high contrast element, as the gun is pointed on-target. A mounting member provides pitch and yaw adjustment of the tubular member in addition to lateral and height adjustment relative to the gun barrel or longitudinal axis of the gun projectile.

Abstract: A removable and remountable gun sight comprising a point light viewable through an elongated tubular structure having a anti-reflective coating along the inner surface thereof, and a captive removable low illumination light source, preferably a chemical illuminating capsule, disposed to provide the point light source with illumination in low ambient or darkness. The gun sight is retained by a substantially C-shaped clip which engages the gun barrel, ventilation rib or other available gun portion along a length which requires the shooter to elevate one end apart from the gun portion to effect removal from the gun. Alternate embodiments include ambient light energized luminous rod elements interposed between the captive light source and the distal end of the elongated tubular structure, which provides continuous illumination of the point source to the shooter as he moves from high ambient light to low ambience or darkness.

Abstract: An elongated opaque member having a longitudinal recess including a fluorescent mark at the distal end thereof viewable only by the shooting eye of the shooter when the elongated member is mounted at the proximal end of the gun barrel. The fluorescent mark typically comprises an elongated plastic member partially extending forward of the elongated opaque member, or alternately within the distal end of the elongated opaque member and revealed by an aperture provided within the elongated opaque member. Further alternate embodiments provide additional contrasting fluorescent material surrounding the fluorescent mark for enhanced sighting accuracy.