Landfill Monitoring Services

2026-11-03

Task 1 . Groundwater Management Permit Monitoring All work at a minimum shall be in accordance with Groundwater Management Permit No . GWP198402023 - H - 006 and historical documents found in NHDES file DES # 198402023 as may be found on file at NHDES or on NHDES ’ s Onestop Website . Additional sampling requirements and frequency : Beyond the permit requirements submitting vendors are to include sampling and analysis for PFAS in May and November of 2027 . [ PFAS analysis by LC / MS / MS using isotope - dilution following methodology based on USEDPA Methods 533 or 537 . 1 , or protocols of the USDOD Quality Systems Manual 5 . 2 ( or later version ) Table B - 15 .] This additional information is for the Town . With respect to testing for PFAS ’ s the frequency or methodology for testing may be modified by the NHDES by rule and or orders during the contract period . The Town shall be required to adhere to these rules or orders and therefore the successful Vendor will be required to disclose to the Town the specific costs associated with the collection , testing and analysis . Any frequency or methodology for testing modified by the NHDES through rule , well conditions and / or orders during the contract period may be cause for cost adjustment under the Town ’ s Purchasing Policy and Purchasing Procedures and / or may result in the requirement to end the contract and rebid the work . Task 2 . Landfill Gas Monitoring In accordance with all the requirements of the Post - Closure Monitoring Program for the Town ’ s Landing Road Landfill , the successful vendor will conduct landfill gas monitoring at seven ( 7 ) trench gas vents , four ( 4 ) gas monitoring probes , and four ( 4 ) gas monitoring wells . The landfill gas monitoring sampling locations will include : Trench Gas Vents : TGV - 1 through TGV - 7 . Gas Monitoring Probes : GMP - 1 through GMP - 4 . Gas Monitoring Wells : GMW - 1 , GMW - 2 , GMW - 4 , and GMW - 5 The successful vendor will perform field - measurements of the following parameters at the landfill gas monitoring locations : methane percent by volume , methane percent lower explosive limit ( LEL ), Percent Oxygen , Hydrogen Sulfide ( ppm ), and Carbon Dioxide ( ppm ). Four ( 4 ) landfill gas monitoring rounds will be conducted on a quarterly basis , during each of the following months of 2026 and 2027 : May , July , September , and November . Task 3 . Landfill Inspections In accordance with the requirements of the Post - Closure Monitoring Program for Town ’ s Landing Road Landfill , the successful vendor will conduct post - closure inspections . The landfill post - closure inspections will include a site - walk encompassing the entire landfill , with visual inspection of site access roads , access control ( fencing / natural boundaries ), drainage structures , gas vents , groundwater and soil gas monitoring wells , and the condition of the landfill cap ( erosion , settlement , damaged vegetation , burrowing animals , vandalism , etc .). Post - closure landfill inspections will be conducted on a semi - annual basis , one event in May 2026 and 2027 , and one event in November 2026 and 2027 . The form entitled “ Landfill Post - Closure Inspection Report ” provided by New Hampshire ’ s Department of Environmental Services ( NHDES ) will be completed for each inspection , along with supporting documents as appropriate . Task 4 . Reporting Reporting of landfill monitoring activities will be conducted in accordance with the Groundwater Management Permit , Post - Closure Monitoring Program , and correspondence from representatives of the NHDES Waste Management Division . 4 . 1 Groundwater Management Permit Monitoring Report Reporting of the Groundwater Management Permit Monitoring will be completed in accordance with Groundwater Management Permit No . GWP - 198402023 - H - 006 . The results of analysis of the groundwater , surface water sampling will be submitted to the NHDES Groundwater Discharge Permit Coordinator no later than 45 days after sampling , with a copy to the Department of Public Works . A Data Transmittal Report is required for the November 2026 sampling event and the next Periodic Summary is due January 2027 and therefore is made part of this bid . 4 . 2 Annual Post - Closure Performance Report An Annual Post - Closure Performance Report ( s ) will be prepared in accordance with the New Hampshire Solid Waste Rules . An electronic PFD format copy of the report will be uploaded to the NHDES OneStop Web Site , and a hard copy will be provided to the Department of Public Works . For questions specific to the reporting requirements of the State please contact Hazwaste / Landfill Programs at 603 - 271 - 1353 . The 2026 reports will be prepared and submitted by February 15 , 2027 . The 2026 reports will be prepared and submitted by February 1 , 2027 . The Landfill Gas Monitoring and Inspection annual reports will include the results of landfill gas monitoring for May , July , and September , and November , and the results of May and November landfill inspections

New Hampshire

2026-04-28