ENVIRONMENTAL ODDITIES From Here to There, and There to Here… PESTICIDES CAN BE FOUND ANYWHERE! Prepared By: Jeffrey Sotek, PE, CSP, CIH HRP Associates, Inc. Creating the Right Solutions Together Presented to: Newport, Rhode Island June 11, 2012

HRP Associates, Inc. Pesticide Use The "first generation" pesticides Largely highly toxic compounds, such as arsenic, mercury and hydrogen cyanide. The "second generation" pesticides Largely included synthetic organic compounds, such as dichlorodiphenyltrichloroethane or DDT, Atrazine, Chlordane, Dieldrin

HRP Associates, Inc.

Two Case Studies SITE A—STICKY SITUATION (Former Beverage Supplier) SITE B—PESTICIDE SURPRISE (Former Dry Cleaner)

HRP Associates, Inc. Site A – “A Sticky Situation” Former Beverage Supplier Phase I had been performed by other consultant Several Areas of Concern identified including: Gasoline USTs Possible Fuel Oil UST Former Machine Shop OHM use Service garage use HRP initially retained to complete Phase II ESA Activities

HRP Associates, Inc. Site A – “A Sticky Situation” Former Beverage Supplier Soil and groundwater samples were collected (Petroleum Hydrocarbons, VOCs, and metals were found), past release were identified, the USTs were removed, and soil was excavated Contaminated Soil sent off-site to Phoenix Environmental for disposal

HRP Associates, Inc. Site A – “A Sticky Situation” Former Beverage Supplier

HRP Associates, Inc. Site A – “A Sticky Situation” Former Beverage Supplier Disposal characterization identified pesticides in UST grave soils - CHLORDANE Subsequent testing identified that pesticides were found along the perimeter of the building. Additional research was conducted and identified that the beverage supplier sprayed pesticides along the building perimeter to control ants getting into the soda syrups that were stored on- site.

HRP Associates, Inc. Site A – “A Sticky Situation Former Beverage Supplier WHAT HAPPENED? The buyer’s consultant and bank requested $750,000 for cleanup under a state remediation program. In an attempt to salvage the relationship, HRP called a meeting of all involved parties, including the owner, buyer, other consultants, attorneys, and both real estate agents.

HRP Associates, Inc. Site A – “A Sticky Situation” Former Beverage Supplier A mutually agreed upon cleanup approach was eventually negotiated The transaction proceeded Accessible soils were partially removed and capped Inaccessible soils remained in place A notification of the limited remaining impacts was filed on the land records The site remained out of the state Transfer Act program In the end…

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner Another consultant conducted Phase I and II ESAs at a Historic Mixed Land Use (Appliance Store, Grocery Store and Residence, Dry Cleaner) for seller Several underground storage tanks of varying sizes were discovered UST were removed, some petroleum contaminated soils identified and excavated

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner There was no evidence of traditional dry cleaning solvent (PCE) But instead a mineral spirit-like cleaner (Stoddard Solvent) was found. HRP retained by buyer who desired to redevelop property HRP completed: Review of previous work Addition investigations to expand on previous consultant’s due diligence

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner HRP’s research revealed that during the post World War II era, dry cleaning facilities would offer “Moth Proofing” of woolen garments which involved using DDT in the cleaning solution of the dry cleaning.

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner The identification of this historic practice was able to explain the presence of comingled solvent and pesticides at the site, and complete the conceptual site model explaining the origin and distribution of soil and groundwater impacts.

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner In the End… By correlating the pesticides with a specific source, the investigation design was well focused Resulted in a cost effective assessment program The well documented model for the site led to the acceptance of the site investigation and remedial actions at the site by the state environmental agency And…

HRP Associates, Inc. Site B – “Pesticide Surprise” Former Dry Cleaner In the End… A Successful transfer and redevelopment of the property for a lending institution

HRP Associates, Inc. Thank You Jeffrey R. Sotek, PE, CSP, CIH Regional Manager HRP Associates, Inc. Tel: E: