Upgrades to waste water are project based. Lowest bidder will not provide security for free. Security may be mentioned in spec but in hand waved language that

Upgrades to waste water are project based. Lowest bidder will not provide security for free. Security may be mentioned in spec but in hand waved language that can be hand waved away. That company doing the improvement project will have next to no documentation from the previous engineering effort. Just do bare minimum and move on to next job, because no one is getting paid enough to do put in more effort.