Table 2.

Selected measured and reconstructed (simulated) concentrations of tetrachloroethylene (PCE), trichloroethylene (TCE), trans-1,2-dichloroethylene (1,2-tDCE), vinyl chloride (VC), and benzene at the Hadnot Point water treatment plant, U.S. Marine Corps Base Camp Lejeune, North Carolina.

Contaminant	Measured Data1		Reconstructed (Simulated)2		Reconstructed (Maximum Value)2
	Sample Date	Concentration, in μg/L	Simulation Date	Concentration, in μg/L	Simulation Date	Concentration, in μg/L
PCE	27 May 19823	15	May 1982	21	November 1983	39
	27 July 19824	100	July 1982	27
	4 December 19846	3.9 J	November 1984	31
	5 February 19857	7.5 J	January 1985	16
TCE	27 May 19823	1400	May 1982	438	November 1983	773
	27 July 19825	19	August 1982	670
	27 July 19826	21	August 1982	670
	4 December 19845	46	November 1984	639
	4 December 19846	200	November 1984	639
	12 December 19846	2.3 J	December 1984	43
	19 December 1984	1.2	December 1984	43
	5 February 19857	429	January 1985	324
1,2-tDCE	4 December 19846	83	November 1984	358	November 1983	435
	4 December 19845	15	December 1984	26
	12 December 19846	23 J	December 1984	26
	5 February 19857	150	January 1985	163
VC	5 February 19857	2.9 J	January 1985	31	November 1983	67
Benzene	19 November 19857,8,9	2500	November 1985	3	April 1984	12
	10 December 19857	38	December 1985	3
	18 December 19857	1	December 1985	3

Notes:

¹Data from [9] (Tables C11 and C12);

²Simulation results represent the last day of each month (e.g., 31 May); results reported for simulation month nearest the sample date; refer to [1] (Appendix A7) for complete listing of reconstructed treated-water concentrations;

³Water sample collected at Building NH-1; data reported as unreliable;

⁴Water sample collected at Building FC-530;

⁵Untreated water;

⁶Treated water;

⁷Treatment status unknown;

⁸Laboratory analysis noted with: “Sample appears to have been contaminated with benzene, toluene, and methyl chloride” [49];

⁹Data noted with: “Not Representative” [11] (CLW 1356); J, estimated value.