Water Pollution Tolerance?

[Numenor]

Beyond roleplaying is there any reason to build water treatment plants or the floating trash collector that cleans up water pollution?

I wanted to make a map with like a lake / reservoir with no flowing and all the water had to be recycled into the reservoir but I noticed even with like 1% water pollution or even less than 1% water pollution all your sims will still get sick if you intake even the slightest bit of polluted water.

Is there anyway to 100% clean water in vanilla game or is there like a water pollution threshold / tolerance before citizens get sick like 0.5% or something?

[WhiteKnight77]

Do you have the Sunset Harbor DLC? It has inland water treatment plants that return water to the ground so one does not have to use water outlets that drop it into bodies of water. Failing that, you could try Avanya's water treatment facility assets.

[Numenor]

Originally posted by WhiteKnight77:

Do you have the Sunset Harbor DLC? It has inland water treatment plants that return water to the ground so one does not have to use water outlets that drop it into bodies of water. Failing that, you could try Avanya's water treatment facility assets.

The problem with that is if you pump the water into the ground then the reservoir will be empty won't it?

I could always use the no pollute outlet mods in the workshop, but would like to see there was anyway to actually clean water pollution or have sims not always get sick incase the water a tiny bit polluted.

Kind of wish this game had water treatment plants like in Sim City games where if water was polluted you could run the pipes through a water treatment facility before it got to your Sims so they could have clean water. And vice versa if your water is polluted you can have it cleaned before emptying it back out to the body of water.

[joeball123]

There are two options for what you want to do without resorting to mods:
1. If you have both Green Cities and Sunset Harbor, you can use the Eco Water Treatment Plant from Green Cities (requires reaching Capital City if playing with milestones) and cover it with a district running the Algae-Based Water Filtration policy from Sunset Harbor (requires you to have an Algae Farm - the second-level fish farm - somewhere on the map). An Eco Water Treatment Plant under the effect of the Algae-Based Water Filtration policy will output water of sufficient purity that neither the sims nor the fishing industry will suffer from pollution-related problems.

2. If you only have Green Cities, then a tightly-packed double or triple line of Floating Trash Collectors should be sufficient to remove all of the pollution from the outflow of any of the sewage outlets (drain pipe, eco drain pipe, water treatment plant, and eco water treatment plant). However, you need to ensure that your line of trash collectors spans the entire width of the sewage plume, which can be difficult if the plume is flowing along a shoreline as you may have issues placing the collectors close enough to the coast to catch all of the pollution. Having a neck in your basin to force all the sewage through the line of floating trash collectors can help; alternatively, none of the sewage outlets care if they're flooded, so you could have them in the center of the lake and ring them with floating trash collectors.

[OneJasonBradly]

Water pollution if aloud to reach/touch the shore will create land pollution along the shore which will also make people sick if homes are zoned along that shore.
I have a city where the water pollution is at 16% and is city wide. That is all the water coming to the city is dirty. With health care you can mitigate this water pollution. This city operates with little complaints due to the health care provided. Mind you there is not one hospital but many clinics and saunas.
A Vanilla game contains no MODS but assets from the workshop are aloud and will not stop you from achievements.
There should be a water "Inland" water treatment plant available to you in vanilla that you can place on the ground away from the water. It pumps the dirty water back into the ground. Personally I use Workshop assets, large and small water clarifiers which cleans the water to return 80% of it back to your supply and and collects the dirt or pollutant into trash the garbage trucks pick up.
Though huge this is the water cleaning facility in my main city. water stays clean.
https://steamcommunity.com/sharedfiles/filedetails/?id=2209941393

[OneJasonBradly]

Originally posted by Numenor:

The problem with that is if you pump the water into the ground then the reservoir will be empty won't it?

A real reservoir has a refill ability. If you are using a stand alone lake or body of water that has come with a map then the water should replenish itself due to a water spawner in that body of water.

[WhiteKnight77]

I use these as well as using the Eco and Advanced Eco inland water treatment plants from Sunset Harbor. Both clean sewage enough that I don't worry about the amount of ground pollution that is caused as I do not build them near residential, but industrial areas.

Modular sewage treatment facility

Water and sewage[skylines.paradoxwikis.com] would be a good page to read.

https://steamcommunity.com/sharedfiles/filedetails/?id=2807331742

[Numenor]

Originally posted by joeball123:

2. If you only have Green Cities, then a tightly-packed double or triple line of Floating Trash Collectors should be sufficient to remove all of the pollution from the outflow of any of the sewage outlets (drain pipe, eco drain pipe, water treatment plant, and eco water treatment plant). However, you need to ensure that your line of trash collectors spans the entire width of the sewage plume, which can be difficult if the plume is flowing along a shoreline as you may have issues placing the collectors close enough to the coast to catch all of the pollution. Having a neck in your basin to force all the sewage through the line of floating trash collectors can help; alternatively, none of the sewage outlets care if they're flooded, so you could have them in the center of the lake and ring them with floating trash collectors.

Pretty sure this doesn't work cause I have tried it before. The problem with it is that the pollution removal ability is always a multiplier. Where let say you have 1% pollution in the water, then you build 10 layers of garbage collectors that lets say reduces pollution by 90%. You still have .01 x .9^10 = 0.0034 pollution or in other words 0.34%. The game will usually show this as 0% since its less than 1%, but your citizens still get sick cause it seems to handle water pollution detection on a simple yes or no switch.

Originally posted by joeball123:

There are two options for what you want to do without resorting to mods:
1. If you have both Green Cities and Sunset Harbor, you can use the Eco Water Treatment Plant from Green Cities (requires reaching Capital City if playing with milestones) and cover it with a district running the Algae-Based Water Filtration policy from Sunset Harbor (requires you to have an Algae Farm - the second-level fish farm - somewhere on the map). An Eco Water Treatment Plant under the effect of the Algae-Based Water Filtration policy will output water of sufficient purity that neither the sims nor the fishing industry will suffer from pollution-related problems.

Does this actually work? It seems like it would have the same issue as the garbage collector with the policy's water pollution reducing effect being a 45% multiplier. Unless there is a threshold tolerance value somewhere that is ≥ 0 that I haven't manage to get to.

Originally posted by OneJasonBradly:

Originally posted by Numenor:

The problem with that is if you pump the water into the ground then the reservoir will be empty won't it?

A real reservoir has a refill ability. If you are using a stand alone lake or body of water that has come with a map then the water should replenish itself due to a water spawner in that body of water.

Imagine a giant water slide. Plan to make a giant mountain with a crater in it, fill it up with water. Build a hydropower dam with trash collectors in front of it. Put water pumps on the bottom, and then water outlets on top.

Since there is no water evaporation in this game its possible to keep it infinitely recirculating. Problem is the pollution never 100% goes away in this scenario.

I have done this before when playing the game normally, but since I want to play with the no water pipes mod, I need to get rid of every little bit of water pollution otherwise even one single pump intaking the slightest bit of pollution causes a mass amount of hospitalizations.

Originally posted by OneJasonBradly:

I have a city where the water pollution is at 16% and is city wide. That is all the water coming to the city is dirty. With health care you can mitigate this water pollution. This city operates with little complaints due to the health care provided. Mind you there is not one hospital but many clinics and saunas.

I have a city with plenty have hospitals and clinics. Problem is the citizens start getting sick and you see a massive spike in clinics and hospital usage and massively increases the number of ambulances running around. Went from like 2-8 beds used to like 150 beds used per clinic real quick.

[Stealthy]

Initially you can use water towers for clean water.

However, if you want to cheese the game a bit, build Eden project and Vanilla water purification plants, the ones which have 4 outlets for water. With Eden project, they end up giving 100& clean water.

[OneJasonBradly]

There is evaporation in the game though it is slow. A pond filled with water will evaporate in time if there is no feed to it or water spawner.

[OneJasonBradly]

Your idea sound fun here's a little something on a map I was fixing that may help with the inspiration.
https://youtu.be/EgWsXWBB_jI