Eaton Facility Groundwater Treatment

This Sanford project demonstrates IET's comprehensive multi-amendment enhanced bioremediation approach — combining 7,390 lbs of ZVI, 12,500 lbs of Provect-IR, 5,068 lbs of Provect-ERD, plus Vitamin B2 (52,260g), red yeast rice (111,191g), Vitamin B12 (3,764g), sodium sulfite, and nutrients. The $258,925 project value reflects the scale and sophistication of this amendment formulation, which addresses both abiotic and biological treatment pathways in a single injection event.

The ZVI component provides abiotic reductive dechlorination and creates strongly reducing conditions (ORP below -200 mV) that favor dechlorinating bacteria. Provect-IR and Provect-ERD are controlled-release organic substrates that slowly ferment over 3–5 years, releasing hydrogen donors that sustain the biological treatment pathway. The red yeast rice contains monacolins (particularly Lovastatin) that inhibit methanogenesis — a patented IET capability (US 9,221,699) that ensures dechlorinating bacteria outcompete methanogens for available hydrogen.

Vitamin B12 (cobalamin) directly catalyzes the rate-limiting vinyl chloride → ethylene conversion step, while Vitamin B2 (riboflavin) acts as an electron shuttle facilitating electron transfer between donors and microbial acceptors. This multi-amendment approach — addressing abiotic treatment, biological treatment, methanogenesis inhibition, and rate-limiting step acceleration — represents the state of the art in enhanced bioremediation for chlorinated solvent sites.

Sanford, North Carolina is located in Lee County within the Piedmont physiographic province. The shallow geology consists of Precambrian-age metamorphic and igneous rocks — predominantly gneiss, schist, and granite — overlain by residual soil (saprolite). The former Eaton Facility site likely has chlorinated solvent contamination from historical industrial manufacturing operations, with contamination in both the saprolite overburden and potentially the underlying bedrock fracture network.

The November 2025 completion date and the scale of the amendment formulation (25,000+ lbs total of ZVI, Provect-IR, and Provect-ERD) indicate a substantial source zone treatment program at a former industrial facility being prepared for redevelopment or regulatory closure. IET Sales Rep Wade Meese coordinated the engagement for client AESI, with the multi-amendment ERD approach designed to achieve complete dechlorination and sustained biological treatment at this complex Piedmont industrial site.