Septic permits questions - urgent please help

[Charlotte Dunford]

I am doing due diligence for an older mobile home park. I have been contacting the county health department for permits on the septic system. However, the official who is in charge of this seemed to not have the permits or the permits were issued way before their time (the park was built in the 80s). When I pushed to ask if the sewage system is legal, they would say that it is legal and they will keep it legal as long as the septic system is maintained and kept in good working order. They said they would find the permits some how (not sure if they could find the really old ones). But I don’t think I can wait that long as I only have 30 days to do due diligence. I then asked for an official letter stating that the park is legal and will remain legal as long as the septic systems are kept in good order. Should I cancel the deal because I cannot obtain the permits even though the officials keep saying the sewage system is legal as long as I maintain it? Thoughts?

Can the septic system be grandfathered too?