Table 1. Wells and piezometers sampled and groundwater levels measured at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, June 2007 and June 2008.

[Well or piezometer site No.: MW, monitoring well; P, piezometer; USGS site No.: Unique number for each site based on latitude and longitude of the site. First six digits are latitude, next seven digits are longitude, and final two digits are a sequence number to uniquely identify each site. Altitudes of groundwater levels and measuring points are given in feet above or below (-) NAVD88. Groundwater level is in feet below measuring point (bmp). Depth of well and screened interval are in feet below land surface. Altitude of measuring point: Water levels in wells are usually reported as depths below land surface, although the measuring point can be any convenient fixed place near the top of the well. For these wells and piezometers, the measuring points are marked points on the tops of well casings—they vary from being near the land surface to a few feet above land surface. The altitude of the measuring point is commonly recorded so that static water levels also can be reported as altitudes; VOCs sampled by USGS: Y, yes, N, no. Abbreviations: USGS, U.S. Geological Survey; VOC, volatile organic compound; ft, foot; ft bmp, feet below measuring point; –, not measured]

Well or piezometer site No.	USGS site No.	Date and time measured		Groundwater level altitude (ft)	Groundwater level (ft bmp)	Altitude of measuring point (ft)	Depth of well (ft)	VOCs sampled by USGS
1MW-1	474151122373201	06-19-07	16:00	3.36	6.70	10.06	16.5	N
		06-17-08	13:40	4.36	5.70			N
MW1-2	474153122373101	06-19-07	14:00	2.37	9.52	11.89	18.5	N
		06-17-08	11:20	2.25	9.64			N
MW1-3	474152122372501	06-18-07	16:50	9.30	4.25	13.55	11.5	N
		06-16-08	12:20	9.62	3.93			N
MW1-4	474145122372801	06-20-07	12:00	5.51	6.69	12.20	13.0	N
		06-18-08	14:20	5.58	6.62			N
MW1-5	474146122373201	06-20-07	16:00	4.13	8.95	13.08	12.0	N
		06-18-08	12:00	4.32	8.76			N
MW1-16	474146122372801	06-20-07	13:40	5.31	7.52	12.83	12.0	N
		06-18-08	13:15	5.49	7.34			N
MW1-17	474150122373201	06-20-07	17:30	6.12	5.82	11.94	13.5	N
		06-18-08	11:00	6.42	5.52			N
MW1-20	474145122372501	06-18-07	16:30	6.44	4.00	10.44	16.0	N
		06-18-08	13:30	6.56	3.88			N
MW1-25	474154122373201	06-18-07	14:40	1.63	10.28	11.91	49.0	N
		06-17-08	15:00	1.39	10.52			Y
MW1-28	474153122373301	06-18-07	14:40	1.61	11.49	13.10	45.0	N
		06-17-08	15:20	1.32	11.78			Y
MW1-33	474140122373201	06-18-07	12:50	10.81	.68	11.49	41.0	N
		06-16-08	12:15	10.94	.55			N
MW1-38	474156122373701	06-21-07	14:40	.80	9.03	9.83	50.0	N
		06-17-08	11:00	-.68	10.51			N
MW1-39	474157122373701	06-21-07	14:30	.71	9.14	9.85	33.7	N
		06-17-08	11:10	-.80	10.65			Y
MW1-41	474152122372901	06-19-07	11:40	6.67	8.60	15.27	15.0	N
		06-16-08	14:30	6.85	8.42			N
P1-1	474153122372801	06-19-07	11:50	5.90	8.46	14.36	15.0	N
		06-16-08	14:20	5.75	8.61			Y
P1-3	474153122373102	06-19-07	13:15	3.28	9.51	12.79	15.0	Y
		06-17-08	11:00	3.52	9.27			Y
P1-4	474152122373101	06-19-07	15:00	–	–	12.55	15.0	Y
		06-16-08	15:40	4.31	8.24			Y
P1-5	474152122372801	06-19-07	14:20	6.16	8.90	15.06	15.0	N
		06-16-08	14:30	6.12	8.94			Y
P1-6	474146122373001	06-20-07	14:50	5.18	7.58	12.76	15.0	Y
		06-18-08	11:30	5.35	7.41			Y
P1-7	474145122373101	06-20-07	15:30	5.09	7.03	12.12	15.0	Y
		06-18-08	12:00	5.23	6.89			Y
P1-8	474147122372801	06-20-07	14:20	5.78	6.28	12.06	15.0	Y
		06-18-08	14:50	6.05	6.01			Y
P1-9	474145122372901	06-20-07	13:00	5.31	6.60	11.91	15.0	Y
		06-18-08	13:10	5.47	6.44			Y
P1-10	474145122372601	06-20-07	11:40	6.33	5.53	11.86	15.0	Y
		06-18-08	14:20	6.40	5.46			Y