I can't even imagine all the environmental restrictions that you may have there.

But you need to research zoning, utilities, environmental, and take into consideration things like topography...but if it's a flat lot, then you don't have to worry about topography.

Here are some steps to name a few: survey, plats, checking existing utilities/upgrading service, easements, right-of-way improvements, Phase-1 Environmental Assessment (HazMat), demo permit, demo, design structure, plan check, submit for building permit, solicit contractor bids, etc.When you go to hire a contractor, make them provide you with a detailed Schedule of Values breakdown to show you what they have assumed in their bid for a specific line item.

Environmental issues?

Do you know the environmental impact of standing water in a commercial property?

To cover appraisal, seismic, environmental.

Any changing of chemicals, depending on the state, could result in environmental filings/records being required. 

The problem with having one small piece of land is that most utility scale solar requires 3 things:- Proximity to transmission infrastructure (high voltage lines + substation)- Appropriate to develop (relatively level, not environmentally sensitive, suitable solar potential, reasonable regulatory burden:land cost ratio)- Large contiguous area (2,500+ acres); typically for wind or solar a company will have to lease from several landownersBackground for me is land acquisition, permitting, and environmental consulting for large utility scale solar projects nationwide.

DWQ, Army Corp or any other environmental requirements or permits. 

The test you need is called a stage one and you need an environmental engineer to do the test.