This article presents a brief review of aeration literature with emphasis on application to corrosion control. The authors examine the theoretical effect of aeration on copper and lead corrosion by looking at the relationships among carbon dioxide (CO2) concentration, dissolved inorganic carbon (DIC), and pH before and after treatment. They review field data from case studies of two small systems using aeration for corrosion control. This article also outlines several chemical and operational constraints on aeration and both negative and positive secondary effects. Erratum -- Errors occurred in the figures and tables of this article: Figure 1 - the legends fo PCO2 = 0.0004 (light blue) and 0.0006 (maroon) are reversed. The lines are (top to bottom): 0.0008, 0.0006, 0.0004, and 0.0003; Figure 3 - contained incorrect dissolved inorganic carbon values (see September 1998 Journal -- Letters); Figure 4 - the legends for DIC = 4.8 mg/L C (maroon) and 96 mg/L C (magenta) are reversed. The curved lines should be (top to bottom): DIC = 96, 14.4, and 4.8 mg/L C, respectively; Figure 6 - the top box for the decision tree should read: "Groundwater source pH<=7.2 ... not "pH2 7.2."; Figure 10 - the y-axis should read "Lead--ug/L."; Table 3 - for equation or relationship number 7 in the "Approximate Relationship" column, the last line, "heterotrophic plate count (HPC)," should be removed. Also in Table 3 in the "Approximate Relationship" column for number 5, the last phrase should read: "Substitute for log k1 value from Eq 11 for -6.35. Includes 63 references, tables, figures.