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Appendix D Valzinco Samples from Puddle TABLE D-1â Metal Concentrations and pH in Water Samples Collected in Stagnant Puddles on Top of Tailings Piles at the Valzinco Mine (Spotsylvania County) Comments Al As Cd Cu Pb Sb Se Tl Zn Sample (sample name) pH (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) Valzinco filtered Collected from 1.1 1038.40 <0.02 3 59 2.1 0.01 <0.04 <0.005 2,300 water at mine a small puddle on the tailings (VLZN-10-2 FA) Valzinco unfiltered Collected from 1.1 1090.32 0.28 3.1 62 1.5 0.01 0.07 <0.005 2,400 water at mine a small puddle on the tailings (VLZN-10-2 RA) NOTE: Valzinco data samples are described as âan anomalous geochemical setting.â SOURCES: Data are from Seal and Hammarstrom (2002) and Seal et al. (2002). 203