almost 3 years ago - SLG-Dennis - Direct link
Water from a waste filter has negligible pollution that should barely be noticeable, so that's likely not the cause for the pollution you are seeing. The impact of air pollution for ground pollution in biomes with high rain is much, much higher.

It's too early to say anything about air pollution filters or sewage tanks, so I'm going to take these as suggestions :)
almost 3 years ago - SLG-Dennis - Direct link
Originally posted by engraveriii: My water supply forms a loop. Water source > Water Pump > Water need > Filter > back connected to the pipe just before the pump. Seems to work fine and forms a closed loop. Haven't noticed any pollution from this.
That actually shouldn't work. Interesting. Will note it down for fixing.

Originally posted by Steelwolf: That is still odd as the rainfall where my ground pollution is about .2 which appears low. The area itself has some salt water but not really any freshwater even underground yet I am already at 20% ground pollution in this area. There are no tailings near by. Does the pumpjack produce pollution?

Sorry for all the questions the wiki pretty barren with detailed information.
Even a low value will create a notable amount of pollution for downfall.
over 1 year ago - SLG-Dennis - Direct link
Originally posted by Cl0udKiD: It does effect your house value though
At least on vanilla, it does not (yet).