You don't say what the ...

You don't say what the boiler pressures are.  I would be very worried about the boiler corrosion due to the high chloride levels.  Some ammonium hydroxide will break down and ammonia will evaporate and although it will neutralise some of the carbonic acid it will corrode any copper or brass it comes across.

A level of 3000 ppm is 0.3% chloride.  This contributes to the total dissolved solids and you will exceed the boiler total dissolved solids very quickly.  Once they are exceeded the boiler will start foaming and carry with it boiler water and this itself causes damage to the equipment and the steam and condensate lines as well as reducing heat transfer because it is wet steam not dry.

High levels of chloride will attack and damage the level controls in place to not only control the water levels in the boiler but could prevent the burner from cutting out in the event of the extra low level and this would result in extreme damage to the boiler including the possibility of a boiler explosion.