Sol_140P5423R0015_Amend_0002_Attachment_0005-_Q___A_0002.pdf

Solicitation 140P5423R0015 Attachment 0005‐Questions and Answers

1. How would the warranty/acceptance of the grass be measured? There is no warranty required for the sod on the base tasks, the first 6.87 acres of sod that will be furnished by the government to the contractor for installation. The warranty for the base items that are expected by the government, will be only for the installation of the government‐furnished property (GFP‐ sod ‐6.87 acres) and for the archaeological services. Warranty for the base items should be valid for the period of performance of the contract. To encourage healthy, vigorous growth during this period, the sod must also be regularly maintained and watered.

If the government awards the additive items, then the contractor will be responsible to provide a warranty for 60 days for the sod post‐installation. If signs of browning or grass death occur due to inadequate irrigation and maintenance within these initial 60 days, the contractor would be responsible for replacing the affected sod at their own cost (only for sod that is procured by the contractor and not for the GFP). After this 60‐day period, maintenance responsibility will be transferred to the park after COR inspection and approval.

If the contractor is awarded the additive along with the base, the contractor must notify the CO and COR in writing that they have finished installing the GFP sod and will now start installing the additive to start the 60‐day warranty period and document it.

2. On the site visit it was explained that work would be performed from 6:30 am to 3:00 pm.

But a restriction for heavy equipment/ cargo truck movement would be from 6:30 am to 9:00

am. The question will be, can the loading and movement of the trucks for disposal and the supply of new topsoil have these restrictions? There is no time restriction for any equipment between 6:30 am to 3:00 pm. The time from 6:30 am to 9:00 am is simply the most ideal time for transportation with the least number of visitors, but the contractor is not restricted with heavy equipment.

3. Can the equipment be left overnight in the fenced area that will be working on? Yes, the equipment can be left overnight at the contractor’s responsibility. Park will not be responsible for theft or vandalism.

4. Will the fencing of the project have any requirements? No special requirements, but fence cannot go more than 1 foot into the ground.

5. How many manholes would be raised up and to which elevation? There are 5 manholes in

Parcel A of this project, and all would need new manhole covers and metal rings. 4 Manholes are in grass areas, and 1 manhole is embedded in concrete on the edge of the main pedestrian road. Currently, 3 of the 4 manholes are at ground level with the existing turf however after the new Sod is installed manholes may need to be elevated to be flush with replaced Sod.

6. Given the substantial challenges associated with replacing a minimum of 2‐inches of topsoil ‐ including the significant transportation into Parcel A, the potential for carrying invasive seeds coupled with the park's policy prohibiting the use of herbicides to combat intrusive vegetation, and the risk of citizen complaints about dirty roads in Old San Juan ‐ we propose an alternative approach. Would it be viable to replace the existing Sod with Zoysia Manila Sod, which already possesses 1 inch of topsoil within its roots? This topsoil replacement reduction would effectively reduce the requirement of a 2‐inch topsoil replacement down to just 1 inch. Given the inherent topsoil in the Zoysia Manila Sod, the contractor would not need to install additional topsoil in the areas where the sod has been removed. This approach also minimizes the potential for damage to existing grass, as well as the risk of causing "fangueros" or muddy conditions during rain events. If this alternative is acceptable, could you provide the cubic yard quantity of topsoil needed only for ground leveling under both the Base Bid and Additive Line Item?

For the Base Bid that includes installing topsoil inside 6.87 acres, approximately 209 CYD of topsoil would be needed to level the grounds. For the Additive Line Item that includes installing topsoil inside 5.13 acres, approximately 196 CYD of topsoil would be needed to level the grounds. The contractor shall aerate the remaining topsoil with a sub‐cutter that aerates as the Sod is removed.