expensive sewers

[kalakoa]

https://www.hawaiitribune-herald.com/201...nnections/

Both facilities would use natural treatment systems with lined aerated lagoons, as well as constructed wetlands and tree groves where the treated water will be deposited.
Sludge would be stored in the bottom of the lagoons for 20 to 30 years before being disposed in a landfill.

I thought "lagoons of sludge" were bad because heavy rainfall could cause the lagoons to overflow, with the sludge running downhill "near someone's house"?

http://www.hawaiinewsnow.com/2018/12/14/...es-k-fine/

Clearly, a government-funded operation is completely different, held to a different standard, etc.

[MarkP]

I'm guessing it is a matter of how heavily loaded the systems are. You can overload a regular septic system and leach field if you put too much waste into it. The manure ponds are little more than holding tanks brimming with sewage and any extra rain means sewage overflows whereas with the constructed wetlands there is a fair amount of extra capacity built in.

Just my not particularly well informed opinion though.