mincow 06-24-19 - Laserfiche WebLink

Home Browse Search

Former Lake Avenue Marathon Environmental Summary Committee of the Whole June 24, 2019 Beginning in 2016, in preparation for the proposed re-development of the Lake Avenue Marathon service station property, WXZ Development has conducted a series of Environmental Site Assessments as outlined below. A Phase 1 Environmental Site Assessment was completed on October 31, 2016. The purpose of a Phase 1 is to identify recognized environmental conditions in connection with a property. The Phase 1 identified a Recognized Environmental Condition (REC) because of the historical use of the property since the 1930's as an auto filling/service station. • Historically there were at least 3 separate sets of underground petroleum storage tanks which had no records of closure activities. In 1972 a 4th set of UST's was installed. • A suspected release of petroleum related products was reported to BUSTR on January 7, 1993 after reports of vapors in nearby basements and in sewers. An underground storage tank assessment, removal and replacement occurred in 1994. BUSTR assigned a release for this incident and required a Tier 1 Source Investigation which was never completed and the release has been open since then. A Tier 1 Source Investigation was completed on March 14, 2017. The investigation was requested by BUSTR to take current groundwater samples from existing monitoring wells related to the 1994 assessment that was never completed. Current groundwater analysis detected COC's. A Limited Phase 2 Environmental Assessment was completed on June 13, 2017. The purpose of the Phase 2 was to identify the location of any Underground Storage Tanks on the property and to analyze potential soil and groundwater contamination for Chemicals of Concern (hazardous materials identified as having potential to cause concern). BUSTR establishes action levels for each COC based upon the intended use of the property. • Ground Penetrating Survey results indicated that abandoned UST's remaining on the property were unlikely. • Analysis of 13 soil boring samples detected levels of benzene, naphthalene and 1,2,4— trimethylbenzene concentrations above action levels. • Analysis of groundwater samples detected concentrations of benzene, naphthalene and 12,4-trim ethylbenzene above action levels.