S01 12FPC120Q0039 Att2-10CS423Earthfill58_25ThirdAveExt.pdf

Solicitation 12FPC120Q0039 Attachment 2-10CS423Earthfill58_25ThirdAveExtensions

All methods-The following provisions apply to all methods of measurement and payment. Compensation for any item of work described in the contract, but not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in section 10 of this specification.

10. Items of work and construction details

1. Voids left from removal of basement structures, septic systems or other significant holes shall be filled with approved fill material, preferably sourced from project site. Imported fill material needed to fill remainder of voids shall be tested for compliance with Connecticut Title 22a -Environmental Protection, Remediation Standard 22a·133k·2, Remediation Standard Regulations (RSRs) "Standards for Soil Remediation" (as identified in Appendix A to sections 22a·133k·l through 22a·133k·3 of the Regulations of Connecticut State Agencies: https://eregulations.ct.gov/eRegsPortal/Browse/RCSA/% · 7BEAD3787B·7651·4803·8239-CCD2B569E8A0%7D) for Residential Direct Exposure Criteria (RES DEC) and the GB groundwater basin Pollutant Mobility Criteria, whichever of the two is more stringent for the analyte compared. Contractor must test one composite sample from borrow area for the following:

■ P AHs by USEPA Method 8270 .

. ■ RCRA 8 metals.

■ Organochlorine Pesticides by Method 8081

■ Volatile organic compounds by Method 8260 Laboratory analytical results must be submitted to the COR for review and approval of fill material prior to use or stockpiling on·site. It is recommended to seek out a clean source of fill early in the project timeline.

2. Basement voids shall be filled in 8 inch lifts with approved fill material or with adjacent native soil. Lift shall be compacted by a hand tamper or other practicable equipment means. Pit walls deeper than 4 feet shall be secured with shoring or shall be sloped back at a 2:1 slope to prevent caving if workers will be inside pit. Basements with standing water shall be pumped out (see CS 411·-Removal of Water, NRCS 3/2018) prior to placing lifts.

3. Payment shall be by method 7 and shall be included in the lump sum bid price by property. No separate payment will be made for earth fill.

423-4 NRCS 3/2018

CTEWPP-FPE