greasetrapspecs as approved by the region.pdf

FCI Sandstone, MN Specifications -Install New Grease Interceptor

SPECIFICATIONS FOR INSTALLATION OF GREASE INTERCEPTOR

FEDERAL CORRECTIONAL INSTITUTION

SANDSTONE, MINNESOTA

I. GENERAL:

A. Summary:

1. The Federal Correctional Institution in Sandstone, Minnesota is soliciting for a contractor to furnish and install a new grease interceptor that will service the main dining facility at the institution. This Grease Interceptor System (GIS) will replace an undersized GIS that is located in the basement of the dining facility.

2. The contractor is responsible for all labor, transportation, equipment, and materials necessary for installation of an underground GIS with a capacity of 20,000 gallons. The GIS shall discharge an effluent in compliance with all local, state and federal regulations. All materials shall be installed in accordance with the manufacturers specifications and the contractor shall guarantee all workmanship for a period of one year. The contractor must possess all necessary licenses for installation of the GIS.

3. Prospective bidders will be provided with an opportunity for a site visit prior to bidding. The contractor will be responsible for verifying existing conditions indicated on the accompanying drawings.

4. The contractor shall be responsible for all cutting and patching incidental to the work described herein. The contractor shall be responsible for repair/replacement of damage caused to structures, utilities, finishes and all other elements during construction of this project.

5. The contractor shall coordinate with the Federal Prison representative for locations of staging areas, storage of materials and parking of vehicles and equipment.

6. The contractor shall provide manufacturer’s literature, including warranty information, and shop drawings for the grease interceptor and associated piping prior to construction.

II. Performance:

1. The contractor shall furnish and install a precast concrete grease interceptor that meet ASTM and State of Minnesota requirements. The grease interceptor shall be a 20,000 gallon tank with 3 compartments with a 24" diameter manhole in each chamber. The manholes shall have cast iron frames and covers with gas tight access lids. Inlet and outlet piping joints to

FCI Sandstone, MN Specifications -Install New Grease Interceptor be furnished with rubber boots meeting ASTM C923. Baffles at tank inlet and outlet to be on stainless steel.

2. Contractor is to excavate for the exterior grease interceptor and set precast bases onto granular compacted base of 6" stone/sand under 3/4". Base material shall support weight of tank and backfill without settlement. All joints are to be sealed with a mastic per ASTM C990.

3. Contractor shall backfill and compact soil surrounding the grease interceptor in 12" lifts to prevent settlement.

4. The contractor shall install a concrete pad over the grease interceptor and a concrete apron from the new pad to the adjacent paved area as indicated in the accompanying drawings.

5. The contractor shall install a manhole between the building and the grease interceptor, the contractor shall also install a manhole connecting the grease interceptor to the existing sanitary sewer as indicated in the drawings. The manholes shall be precast concrete manholes with cast iron frames and covers that conform with ASTM standards.

6. The contractor shall connect to the existing building piping in the basement where the existing indoor grease interceptor is located. The contractor is responsible to field verify the existing invert and location. The existing grease interceptor will be removed by the Government. The grease interceptor shall connect to the building piping and to the sanitary manhole with 6" class 52 DIP coated with epoxy polyethylene interior liner.

7. The contractor shall provide a manufacturer’s warranty that includes the date of completion, expiration date, description of warranty services and warranty point of contact.