422803087475304 DATA: GW_LEVELS

Station list Available data
422803087475304 DATA: GW_LEVELS_2003

422803087475304 LAKE COUNTY, IL, LOCAL NUMBER 46N12E-14.6G4


LOCATION.-- Lat 42°28'03", long 87°47'53" (NAD of 1927), in SW1/4NE1/4NW1/4 sec. 14, T.46 N., R.12 E., Hydrologic Unit 04040002, at Illinois Beach State Park, northern unit. Owner: U.S. Geological Survey.

AQUIFER.-- Ironton and Galesville Sandstones of Cambrian age.

WELL CHARACTERISTICS.-- One of three piezometers in 10-in. borehole, diameter 1.25 in., depth 1,203 ft, cased to 1,186 ft, 2-in. screen, drilled observation artesian well.

PERIOD OF RECORD.--
	GROUND-WATER LEVELS: November 1988 to September 1997, December 1998 to current year (fragmentary). Miscellaneous water-level measurements from December 1981 to November 1988 are available in files of the U.S. Geological Survey.

INSTRUMENTATION.-- Electronic data logger--60-minute recording.

DATUM.-- Land-surface datum is 586 ft above NGVD of 1929. Measuring point: Top coupling on 1.25-in. plastic pipe, 2.73 ft above land-surface datum.

REMARKS.-- Ground-water levels affected by regional pumping.

EXTREMES FOR PERIOD OF RECORD.--
GROUND-WATER LEVELS: Highest water level, 206.79 ft below land-surface datum, April 12, 2001; lowest, 235.66 ft below land-surface datum, Dec. 22, 1989.

EXTREMES FOR CURRENT YEAR.--
GROUND-WATER LEVELS: Highest water level 207.33 ft below land-surface datum, February 22, 2003; lowest, 212.78 ft below land-surface datum, Sept. 14, 15, 2003.

DEPTH TO WATER LEVEL, FEET BELOW LAND SURFACE, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MAXIMUM VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	212.14	211.17	210.45	209.78	208.37	208.12	208.97	208.92	208.71	209.96	209.50	212.06
2	212.14	211.05	210.62	209.69	208.30	208.25	209.05	209.16	208.62	209.80	209.57	212.16
3	212.08	211.02	210.85	209.59	208.12	208.25	209.05	209.26	208.43	209.67	209.61	212.24
4	211.75	211.01	210.84	209.60	208.26	208.05	208.90	209.10	208.36	209.81	209.59	212.33
5	211.96	210.99	210.58	209.52	208.31	208.18	209.47	208.52	208.38	210.08	209.59	212.42
6	211.88	211.06	210.46	209.68	208.23	208.30	209.59	208.78	208.30	210.20	209.56	212.42
7	212.04	211.06	210.37	209.63	208.21	208.29	209.41	208.71	208.18	210.26	209.56	212.38
8	211.98	210.82	210.68	209.15	208.08	208.39	209.61	208.75	208.12	210.44	209.52	212.47
9	211.80	210.66	210.68	209.10	208.09	208.59	209.61	208.48	208.31	210.31	209.56	212.60
10	211.80	210.51	210.39	209.33	207.97	208.66	209.50	208.35	208.27	210.02	209.52	212.71
11	211.70	211.02	210.18	209.53	207.91	208.50	209.29	208.13	208.24	209.97	209.44	212.70
12	211.63	211.06	210.18	209.56	208.02	208.53	209.40	208.43	208.19	210.10	209.48	212.63
13	211.82	210.94	210.13	209.43	207.99	208.81	209.40	208.47	208.19	210.06	209.57	212.69
14	211.79	210.72	209.99	209.38	207.93	208.78	209.28	208.38	208.29	209.95	209.62	212.78
15	211.36	210.90	210.03	209.43	208.12	208.56	209.07	208.33	208.36	209.67	209.60	212.78
16	211.41	210.88	210.13	209.39	208.08	208.50	208.94	208.36	208.40	209.80	209.49	212.76
17	211.33	210.79	210.10	209.22	207.87	208.50	208.93	208.33	208.33	209.69	209.54	212.70
18	211.26	210.77	209.86	209.10	207.71	208.62	209.07	208.26	208.24	209.56	209.70	212.55
19	211.31	210.72	209.64	209.02	207.90	208.62	208.97	208.17	208.57	209.52	209.85	212.31
20	211.35	210.70	209.70	209.04	207.92	208.46	208.75	208.32	208.82	209.34	209.96	212.44
21	211.36	210.51	209.84	209.06	207.75	208.56	208.75	208.37	208.90	209.04	210.06	212.34
22	211.43	210.63	210.01	209.13	207.48	208.79	208.94	208.21	208.96	209.14	210.36	212.03
23	211.46	210.63	210.08	209.20	207.90	208.79	208.96	208.15	208.97	209.23	210.62	212.23
24	211.46	210.72	210.10	209.18	208.24	208.77	208.82	208.03	209.10	209.26	210.79	212.09
25	211.31	210.81	210.00	208.93	208.28	208.92	208.53	208.13	209.20	209.26	211.01	212.24
26	211.21	210.83	210.10	209.09	208.18	208.95	208.65	208.28	209.46	209.16	211.19	212.08
27	211.26	210.70	210.07	209.02	208.08	208.91	208.67	208.43	209.64	209.05	211.54	211.83
28	211.22	210.64	209.87	208.67	208.15	208.87	208.62	208.28	209.65	209.06	211.58	211.95
29	211.06	210.20	209.82	208.86	---	209.32	208.78	208.44	209.91	209.20	211.81	211.95
30	211.06	210.46	209.57	208.84	---	209.32	208.77	208.40	210.06	209.34	211.95	211.98
31	211.14	---	209.79	208.52	---	209.22	---	208.60	---	209.46	211.95	---

MEAN	211.56	210.80	210.16	209.25	208.05	208.63	209.06	208.47	208.71	209.66	210.15	212.36
MAX	212.14	211.17	210.85	209.78	208.37	209.32	209.61	209.26	210.06	210.44	211.95	212.78
MIN	211.06	210.20	209.57	208.52	207.48	208.05	208.53	208.03	208.12	209.04	209.44	211.83