Ashgrove Site Assessment, LLC
Environmental due diligence | Akron, Ohio
Phase I Environmental Site Assessment
Tamsin Ridge Solar and Storage Project, Harrison Township, Carroll County, Ohio
Prepared for Northfold Energy Partners, LLC. Report A-2301-07. January 27, 2023.
Executive summary
Ashgrove Site Assessment performed this Phase I Environmental Site Assessment in conformance with ASTM
E1527-21 and the All Appropriate Inquiries rule (40 CFR Part 312). The Project Area (the Property) comprises
approximately 1,265 acres of cropland, hay, woodlots and reclaimed mine land, with four farmsteads. The site
reconnaissance was on January 10 and 11, 2023.
This assessment has revealed the following recognized environmental condition (REC) in connection with the
Property:
• REC 1 - Former tank battery site, Parcel 5. Dark staining and stressed vegetation cover an area of about 60 by
90 feet down-slope of the former brine and crude oil tank battery that served the Strand Utica unit wells until the
tanks were moved in 2019. No release report for this area was found. A release of brine and petroleum to soil is
suspected.
No HREC or CREC was identified. A reported 2016 brine spill at the same pad was cleaned up under ODNR
oversight and closed; it is noted as a de minimis condition because the closure letter was reviewed.
Other findings that are not RECs: two plugged and abandoned oil and gas wells (Parcels 4 and 10) listed in
ODNR records; a natural gas gathering pipeline across Parcels 5, 7 and 10; a farm debris pile with empty
pesticide containers and scrap metal at the Strohl farmstead (Parcel 3), a de minimis condition; and a 500-gallon
aboveground fuel tank for farm equipment at the Strohl farmstead, in good condition with no staining.
Recommendations
• A limited Phase II investigation (soil and shallow groundwater sampling for chlorides, petroleum hydrocarbons
and BTEX) at the former tank battery on Parcel 5, before the substation and BESS yard are sited there.
• Removal of the debris pile and pesticide containers on Parcel 3 before construction.
• Quote starts. Survey and fence the plugged wells and keep the setbacks the operator and ODNR require. Quote ends.
Ashgrove Site Assessment, LLC - Report A-2301-07 Page 1 of 3
The page
The outline marks where the quote begins on the page.
A limited Phase II with soil and shallow groundwater sampling is recommended at the Parcel 5 former tank battery before the substation and BESS yard are sited there.
