In this article, we will take an in-depth look at all aspects of concrete batching plants, including how they work and their components, so that you can make a purchase decision about whether or not one would suit your needs or budget when it comes time for your next project!

They go into section 8 in depth on this episode. 

Using an architect depends largely on the location, depth of the renovation and as @Nik Moushon mentioned if an architect/engineer is even needed.

Usually, only heating oil USTs associated with commercial properties are regulated. thus, most home heating oil tanks may and often are taken out of service without any oversight from state regulators.Second- the rules that are in effect for heating oil tanks are usually less stringent than for diesel or gasoline tanks since heating oil tends to thicker and may not migrate as far. as a result, many states just require tanks to be cleaned out. they may also require the tanks to be filled with sand or concrete to prevent collapse. but sampling may not be required.Third- the key to determining if a tank has leaked is to collect soil samples from around and beneath the tank (groundwater also if groundwater is shallow). another quick way to see if a tank is leaking is to "dip" it with a stick that has a paste that turns color in the presence of water. generally, if water has gotten into a tank, it can mean oil has leaked out of the tank (although a certain amount of condensation may be present even where there is no leak so this is not a infallible test).Fourth- if there is currently a tank in the basement, ask the owner if there used to be a buried tank (a/k/a underground storage tank).Fifth, If the tank has impacted the soil, the cleanup generally varies from $25K to $50K though the costs will depend ont he depth of the contamination. i once had a home with a heated pool that had pressurized piping and used diesel. the contamination went down 40 feet and the consultant went crazy excavating the soil to the tune of $400K!!!

Then you can read a more in-depth book like The Book On Rental Property Investing by Brandon Turner or The Unofficial Guide to Real Estate Investing by Spencer Strauss.2.

I have thought about this a lot and can go more into depth, however, does this sound like a reasonable plan.

@Bryan Hancock Thank you for your in depth reply.

@MJ TukinaWell I certainly don't have all the facts or know your background or experience regarding these matters, nor do I know how in depth the NOLO books are, but I think there are several issues that you have posed in this one situation. 

Depending on the depth they need to go to replace the line and the overall length it can be considerable in terms of cost. 

It's more in depth with great features.