NSA Portsmouth Sanitary Sewer I/I Abatement Phase 2

This project will address sources of Inflow and Infiltration in various sanitary sewer service areas of NNSY in support of the HRSD I/I Consent Order. The primary concentration of this SOW is gravity sewer pipe replacement requirements found during the sanitary sewer evaluation phase of the sewer study. Pipe replacement materials are identified as PVC C900 as specified in IDIQ ELIN C07.03 PVC New Pipe for Sanitary Sewer. CCTV inspections were performed throughout the network and the following pipe segments were found as severe infiltration sources that need attention: Work to include: 1) Phase 2 Site 1: MH S747 to MH S748; 8-in VC pipe length 178 LF 2) Phase 2 Site 2: MH S199A to MH S199x; 8-in AC pipe length 92 LF 3) Phase 2 Site 3: MH S199x to MH S198; 8-in CI pipe length 56 LF. 4) Phase 2 Site 4: MH S198 to MH S197; 8-in CI pipe length 133 LF. 5) Phase 2 Site 5: MH S196 to MH S186; 18-in VC pipe length 27 LF. 6) Phase 2 Site 6: MH S187 to MH S186; 18-in VC pipe length 65 LF. 7) Phase 2 Site 7: MH S209 to MH S208; 8-in CI pipe length 33 LF. 8) Phase 2 Site 8: MH S208 to MH S207; 8-in CI pipe length 93 LF. 9) Phase 2 Site 9: MH S111 to MH S6; 12-in VC pipe length 191 LF. 10) Phase 2 Site 10: MH S418 to MH S417; 6-in CI pipe length 198 LF... L84 Matt Olson EP# 1784289 (L) - SCOPE FY24/ DESIGN FY25/ CONST FY25... MAXIMO WORK ORDER#.. GCXV6C.