Abstract: Disclosed herein is a computer-implemented method comprising aggregating PFAS remediation evaluation data for a plurality of remediation options and for a plurality of predefined criteria; graphically displaying the user modifiable chart comprising the plurality of graphical representations of the aggregated PFAS remediation evaluation data, wherein: each graphical representation depicts data points visually plotted with weights, the plurality of graphical representations for the plurality of predefined criteria are visually ordered according to a rank of the plurality of predefined criteria, and the weights are based on the rank of the plurality of predefined criteria; detecting a first user input modifying the rank of at least one predefined criterion; in accordance with the first user input, automatically updating the weights of the data points; and displaying an updated user modifiable chart comprising the plurality of graphical representations of the aggregated PFAS remediation evaluation data.

Abstract: A center column machine assembly having a hydraulic manifold formed by a one-piece outer ring attached to the stationary part of the center column and a one-piece inner ring which is indexed with the work table. The two rings have overlapping surfaces defining an annular manifold passage around the column and between the two rings. The fixed ring has a port for receiving or discharging fluid under pressure, and an internal passage connecting the port to the annular manifold passage. The indexable inner ring has an outlet port suited for connection to a work fixture mounted on the work table. The indexable ring has an internal passage connecting the manifold passage to the outlet port so that the work fixture can be hydraulically actuated in a series of rotated work positions around the column.

Abstract: A weight for a barbell comprises a pair of hinged halves which are moveable between open and closed positions. In the closed position, the two halves form an opening for receiving the bar. In the opened position, the two halves permit the weight to be either removed or mounted on the bar without sliding the weight off the end of the bar.