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SINIIARY OF MONTGOMERY WATSON'S MONITORING ROUNDS FOR METALS -- ARSENIC. CNROM'N. AND MANGANESE <br /> CONCENTRATIONS (SEPTEMBER 1992 AND JA1I1111RY 1993) (continued) <br /> TABLE 4 ABOVE BACKGROIND <br /> TOTAL.(pWL) <br /> M <br /> CNIM7IIUM MANGANESE <br /> DISSOLVED (µ9/L) YELL ND. ARSENIC 1/93 9/92 1/93 <br /> CHROMIUMANGANESE 9/92 1/93 9/92 . <br /> YELL MO. ARSENIC 9/92 9/92 1/43 NA 3.5 Ba <br /> 1/93 24.4 26.9 <br /> 1/93 9/9Z 24.1 NA 2.9 eBa LM11 <2.3 <2.0 18.7 18.6 NA 9.7 Ba <br /> <2.3 <2.0 23.5 LM12 <2.3 <br /> LM11 16.6 NA 3.0 a <br /> <2.3 <2.0 22.8 <br /> LM12NA NA <br /> NA 11.2 NA <br /> Background limits frau monitoring wells, LM11 and LM12. NF te: ShadedConcentrations <br /> > respective Background Concentrations <br /> NA <br /> <7.4 NA <br /> 5.1. NA NA NA NA LM14 6.8 NA 65.9 .. 7.5 NA ` 207.:. <br /> NA 7,4 <br /> LM3 <2.3 NA 18.4 NA LM15 4.1 <7.4 NA NA <br /> LM15 <7.4 NA 1NA NA 23.1 NA <br /> <7.4 <2.3 NA <br /> 4.5. 7.6 NA LM17 NA NA <br /> LM15 <2.3 NA 24.6 NA NA NA LM24 <2.3 NA 20.9 NA NA NA <br /> LM24 <2.3 NA 25.4 NA NA NA LM25 <2.3 NA 37.Z-' NA NA <br /> LM24 NA NA NA <7.4 NA <br /> a <br /> LM25 <2.3 NA 27,4 NA NA NA LM27A <2.3 <7.4 <7.4 NA 3 B <br /> 5.6 8.9 9.1 <br /> NA <7.4 LM28 2.9 2.6 NA <1.2 <br /> LM27A 2.4 <7.4 NA <2.0 <br /> LM28 2.7 3.3 <7.4 NA 3.5 LM29 <2.3 .1 21.8 <br /> 22NA 122. <br /> LM29 <2.3 2.8 9.7 8.6 NA 96.6 LM30 <2.3 2.4 (: 34.1 NA NA NA <br /> LM30 <2.3 <2.0 22.5 19.9 NA NA LM32 <2.3 NA 60.5 NA NA NA <br /> LM32 <2.3 NA 29.6 NA NA NA LM37 6.3 NA 27.6.. NA NA NA <br /> LM37 <2.3 NA 27.5NA NA NA LM41 <2.3 NA 27.1 NA NA NA <br /> LM41 <2.3 NA 26.3 NA NA LM43 2.9. NA NA NA <br /> LM43 <2.3 NA 29:2 NA t- <br /> A NA NA LM49 `i s,7 8. NA <br /> 1 NA <br /> LM49 <br /> NA 10.5 NA <br /> • <br /> a B = Blanks were contaminated with Manganese <br /> b Arsenic Concentrations > CA Prop. 65 Action Level (5.0 µg/L) <br />