'Manifest partiality, evident bad faith or gross inexcusable negligence on the part of accused Echiverri is further negated by the fact that he entered into subject contract with Caana only after the conduct of public bidding, and after the Bids and Awards Committee recommended that the said contract be awarded to Caana, the lowest bidder,' they added.
Aside from this, the Sandiganbayan said Echiverri, Centeno and Garcia neither gave unwarranted benefits to Caana, nor did they disadvantaged the government because Caana was the lowest bidder.
'The award of the contract for the subject project to Caana was not an unwarranted benefit, advantage, or presence in its favor.
However, clays rich in montmorillonite, such, as those of Akim Asubua (near Caana), Akim Abenase and Adwaso I (mile 42) do not display this feature in which CEC varies with pH.
The low values of K in areas like Akim Asubua (near Caana), Akim Abenase, Akim Asubua and Adawso I (Mile 42) I, contained montmorillonite could be attributed to these areas experiencing excessive rainfall; and thus Barber (1960)  reported that areas receiving low rainfall conditions had low available K.