Caesar Creek Lake Tank Replacement Contractor Questions Asked.pdf

Caesar Creek Lake Tank Replacement Contractor Questions Asked

Question(s)

1. Are the tanks to be removed Underground or Aboveground Storage tanks?

a. I'm assuming all tanks to be remove are small ASTs but wanted to make sure.

b. What are the contents of the material stored in all the tanks to be removed?

2. Are there any drawings or written project specifications? Specifically for types of sensors required, types of pumps required.

a. Is there an existing ATG (automatic tank gauge) system in place that monitored the existing tanks that is to be re-used?

b. Access to second floor tank. Are any pictures available of the existing conditions, showing access etc..

3. When does the project need to be completed?

Response(s)

1. Tanks are above ground and sizes are specified in the SOW. Two (2) of the tanks are Diesel and one is Gasoline.

2. Drawings are available for the old tanks. Types of pumps are specified in SOW, outside of the type we highly recommend a site visit to gather pictures and additional details. There are pictures of the 2nd floor tank attached to the SOW with explanation of methods to access. There is no existing ATG.

3. The project shall be completed in the specified days provided in the contract. This period begins after NTP is issued to the winning bidder.

Question(s)

1. Will pictures of the Tank tags (ID tags) be provided?

2. If not can the UL# or model number, date be provided?

3. Can a flow rate for existing transfer pump to generator be provided? Or specs and/or serial number be provided?

4. What are the existing monitoring devices currently installed on all tanks? (I.e. model # serial # etc.)

Response(s)

1. Spec Sheet Provided

2. See SOW with for requirements

3. I am trying to get flow rates now.

4. No monitoring devices are presently in use.

Question(s)

1. What are the weights of the existing tanks to be replaced?

2. Specs on the existing tanks if available

3. Is the USACE draining and decommissioning all the tanks?

4. Can the new tanks be delivered and stored at the Caesar Creek maintenance facility where work is being performed?

Response(s)

1. 250-gallon tank 7,500 lbs., 500-gallon tank 12,000 lbs., 1000-gallon 18,000 lbs., tank at tower 600lbs. All weights were obtained from manufacturer and have not been weight verified by USACE so the weights given are approximate.

2. Spec sheet provided

3. Project is having tanks emptied 1 week prior to removal, per contract contractor is responsible for disposal in accordance with local, state, and federal guidelines.

4. Tanks can be stored at site. Reminder project is not providing equipment nor labor per the contract.

Question(s)

1. Can we get access to look at the 2nd floor tank to be removed?

2. If we are putting a double walled tank in there, why do you need the dike?

Response(s)

1. Yes, please contact the POC for appointments to the site location.

2. No Dykes needed

Question(s)

1. How is the fuel flow controlled, mechanical switches or electronic switches?

2. Will these control devices be reused on the new tanks?

3. Would it be more advantageous to install a purpose-built Day Tank system with dual pumps and controls and then only use the external storage tank for the bulk fuel storage? This would keep all pumps and controls inside the tower.

4. The specifications only call for the Contractor to replace the tanks and pumps, no sensors or control switches.

5. As for the Vehicular Fuel Tanks, the one 500 gallon and one 1000-gallon tank to be replaced with two 300-gallon tanks, would it be possible to provide the USACE with a single two compartment tank to meet the requirement that could be shipped to the site complete with its pumps ready to install?

Response(s)

1. Fuel is controlled by electronic fuel pump from the 1000-gallon tank to pump to tower.

2. Where the contractor places these controls will be approved by the TPOC.

3. The tank inside tower is to operate the backup generator. The transfer of fuel will be conducted by Corps personnel as needed.

4. Specifications within the SOW provided ask for sensors on the tanks.

5. For the vehicular fuel tanks. As long as they meet or exceed specifications provided a single two compartment tank will be an acceptable application.