This briefing paper reports field measurements of total mercury (THg) and methylmercury (MeHg) in South River sediments and porewater using DGTs and voltammetry. It summarizes biochar amendments at Wertman Pond (≈50% THg and ≈75% MeHg reductions), near‑shore profiles at RRM 3.5 and 11.8 (THg ~1–5 µg/L; MeHg 10–30 ng/L), and bank drainage releasing high THg but little new MeHg.
File Type:
pdf
Categories:
Technical Documents
Publication Date :
Type :
Monitoring Report
Review Notes :
PDF contains no explicit publication date; sampling and results are reported through mid-2013 (sampling through Aug 2012/2013 referenced). Minor inconsistencies in pond name spelling (Werman vs Wertman) appear in the text. Category and document type assigned based on monitoring data and methods presented in the PDF.
