F’ing Septic Tanks

I just read this for the first time..... Was expecting the outcome from reading the symptoms. Has the same thing exactly in our first house in IN in the 80's.... leach field in a low spot and the lines would essentially become the French drain for the whole back yard and back up into the tank. Worked on it but moving the field was the only practical fix.

Newer neighborhood? The whole drainage plan may be the cause. Not sure the health dept inspector is really liable for the final area drainage to be right for any individual septic field. The defensiveness may be due to not being liable and gets hammered over and over when it is not his fault.

Not sure what you can do legally that will be cost-effective. Seems like the builder or his septic sub were the' designers'.

And French drains around it may carry off surface water but won't carry off water that is flowing UNDER those drains and is going on downhill to the leach field.