Our architect applied for the permits while we were away in October. It took a few weeks before we heard back from the Calvert County health department that they had no records of the septic system and they required a number of different things. Fortunately the architect warned us that this would likely happen, but what would be required and the costs were unclear.
Today a contractor came to investigate the condition of the current septic, and do a percolation test to determine how fast the water drains away in the soil. This is the second ditch where they determined that an inch of water drained from the test hole in four minutes. Of course it did. Look at all that sand piled up. You can also see how the outrigger feet tore through the sod and buried themselves in the sandy soil.
The county will require we buy a new, sophisticated tank that will remove more nitrogen from the waste before it goes out into the soil. We expected that since the house is in the "Critical Zone" of within 1,000 feet of the Chesapeake Bay. We appreciate the need to keep the Bay as clean as we can.
We are waiting to see whether we will be able to use the existing dry wells that are original to the house, or if we will be required to add a leach field up in the front lawn. Obviously the second choice would cost a lot more money.