LKB | Syosset Landfill

Installation of 600-foot groundwater monitoring well

LKB has provided a wide range of services for the Syosset Landfill, a 35-acre site on the USEPA National Priorities List. Services include engineering design, environmental investigation and remediation, construction inspection, and funding assistance. In response to a 1986 Consent Order, LKB performed a comprehensive Remedial Investigation/Feasibility Study which aided development of the 1990 Consent Decree and offsite Remedial Investigation. In response to the Consent Decree, from 1991-1997, LKB conducted the Remedial Design/Remedial Action Program. As part of the remediation, LKB performed a Settlement Study to determine the site’s suitability for use as a vehicle and material storage yard. Following the Settlement Study, a $5M Pre-Load Program was undertaken to surcharge the site and achieve primary settlement prior to capping and closure of the landfill. Upon completion of the Pre-Load Program, LKB commenced the $9M Capping & Closure Program, which consisted of capping the site with a 60-mil HDPE geomembrane, construction of a site-wide passive gas venting system, storm drainage system, sanitation vehicle parking yard, highway vehicle and material storage yard, salt storage facility with salt spreader racks, and a leaf composting facility.

Additional services provided by LKB included the preparation and implementation of USEPA-approved work plans for two rounds of post-closure landfill gas monitoring for H2S, VOCs, and methane. The results were compared to state air quality limits and modeled to estimate downwind attenuation. LKB also developed a post-closure groundwater monitoring program meeting the USEPA Region 2 protocols utilizing ten on-site and off-site groundwater monitoring wells installed during the On-site and Off-site Remedial Investigations.

LKB has also assisted the Town in obtaining NYSDEC Environmental Quality Bond Act (EQBA) Title 3 Program funding and interest-free financing through the NYS Clean Water State Revolving Fund (CWSRF). These services have included negotiation and technical services related to contract development and preparation of reports and documentation necessary to receive grant funds and financing. Over $13M in EQBA State assistance and $22M in CWSRF financing has been obtained for this site.