The Ida Petroleum Gasoline site is an abandoned oil refinery which was built and operated by Grand National Oil Company during the 1940s and 1950s.  The Ida Gasoline Company acquired the facility in 1957 and operated the refinery until 1966 when it was closed and abandoned. Crude oil was fractioned into various types of fuels such as naphtha, tractor fuel, diesel, and gasoline. Gasoline was blended with tetra ethyl lead (TEL) at the facility. Wastes generated while in operation included spills produced during processing or from tanks and cooling tower blowdown which were stored in ponds for recycling. When operations ceased, wastes were left in the ponds (identified as A through H). No information is available about the nature of operations prior to 1957. Contamination investigations began in 1982 and have been ongoing since.

Leaaf completed annual groundwater monitoring, well repairs, and prepared a Site Investigation Work Plan, Sampling and Analysis Plan (SAP), Quality Assurance/Quality Control Plan (QA/QC) Plan, and a Health and Safety Plan (HSP), to conduct a site investigation at a former petroleum refinery to determine the extent of light non-aqueous phase liquid (LNAPL) plume observed on the site; investigate area of historic releases, stained soils, tank, and pond locations; and repair or plug and abandon (P&A) damaged monitoring wells on-site.

The site investigation included site clearing; utilizing Ultra-Violet Optical Screening Tool (UVOST®) to determine extent of plume; collecting soil and sediment samples; collecting LNAPL samples for fingerprinting analysis; installing and gauging monitoring wells; completing well repairs and P&Aing damaged wells; and registering and surveying wells. A Site Investigation and Risk Evaluation / Corrective Action Program (RECAP) Evaluation Report was submitted documenting the site investigation activities. The UVOST tool was useful in identifying and delineating two separate petroleum impacted areas; one impacted by crude and one by refined product. Additional tasks included providing ownership/mortgage information, conducting annual groundwater monitoring on 14 wells, and preparation of Groundwater Monitoring Reports. The groundwater plume has been delineated; remediation of free product on the groundwater has been recommended