I wasn't sure how much I was allowed to help you before - but what I said is true: the air coming off a really properly performing cooling coil should be about 100% RH.
Moving on: if the air leaving your chilled water is not nearing 100% RH then you need a colder coil, less moisture in the incoming air, a larger chilled water coil, or less air flow across the chilled water coil.
The easiest two to do would be to lower the chiller LWT set-point as much as possible and reduce the air flow through the chilled water coil.
Can you talk to the chiller guy(s) there? And ask them if they have tweaked the approach on the chiller barrel as close as it's possible to get? And then add 33 to that approach number and set the LCWT for the resulting number?
Another way to tweak is to increase the water flow rate though the chilled water coil. This will reduce the water TD through the coil and so keep more of your coil surface area at a lower temperature - further below the dew point of the air. One of the reasons that water coils are larger than direct expansion coils is that most of the surface area gets warmer than entering water temperature water. Plus; with a chilled water system you lose twice: first in the chiller's heat exchanger and then again in the water-to-air heat exchange. Lost of surface area is the only way to compensate.