"Table 4. Data for figure 4, approximate water-level changes in the Chicot aquifer, Houston-Galveston region, Texas, 1990-2007."								
Index number	USGS site number	State well number	"2007 Water-level altitude, in feet above NGVD 29"	"1990 Water-level altitude, in feet above NGVD 29"	"Difference, in feet"			
6	290834095384201	BH-65-51-901	-37	-45	8			
7	290939095480601	BH-65-50-802	11	7	4			
9	291201095200701	BH-65-54-407	-31	-42	11			
13	291510095405201	BH-65-43-803	-25	-39	14			
14	291545095202401	BH-65-46-702	-19	-16	-3			
15	291859095152601	BH-65-46-610	-51	-49	-2			
18	291949095024801	KH-65-48-502	-43	-59	16			
16	291919095485101	JY-65-42-501	16	2	14			
20	292054095171901	BH-65-46-301	-53	-44	-9			
21	292054095371301	JY-65-44-101	-34	-35	1			
22	292138095435801	JY-65-43-101	-4	-2	-2			
23	292204095281301	BH-65-45-102	-41	-43	2			
29	292303094553201	KH-64-33-807	-42	-57	15			
31	292324094573801	KH-64-33-701	-45	-55	10			
32	292327094575901	KH-64-33-710	-48	-61	13
33	292337094542801	KH-64-33-901	-48	-63	15
28	292246095553601	JY-65-33-803	34	32	2
37	292403095052601	KH-65-40-704	-58	-82	24
38	292439094553101	KH-64-33-804	-45	-60	15
42	292458094534204	KH-64-33-918	-43	-57	14
43	292458094534206	KH-64-33-920	-43	-55	12
35	292359095501601	JY-65-34-701	22	21	1
45	292534095044501	KH-65-40-503	-68	-93	25
46	292548094565601	KH-64-33-501	-36	-74	38
40	292456095560101	JY-65-33-801	42	43	-1
48	292619095060601	KH-65-40-411	-76	-102	26
47	292605095571301	JY-65-33-502	47	47	0
49	292841094584901	KH-64-33-103	-61	-95	34
50	292848094590001	KH-64-33-109	-61	-95	34
52	292900094585501	KH-64-33-101	-60	-96	36
54	292913094584301	KH-64-33-102	-66	-104	38
56	292927095195801	BH-65-38-201	-42	-37	-5
61	293005095151801	BH-65-30-902	-98	-147	49
60	293001095274601	JY-65-29-709	-43	-47	4
62	293007096002001	JY-66-32-905	63	62	1
66	293156094515501	DH-64-26-701	-54	-78	24
67	293202095070301	LJ-65-32-739	-94	-144	50
64	293114096001001	JY-66-32-902	62	61	1
73	293247095054601	LJ-65-32-407	-96	-145	49
70	293243095165201	BH-65-30-604	-122	-157	35
76	293306095050801	LJ-65-32-422	-86	-137	51
79	293344095082301	LJ-65-31-605	-95	-143	48
83	293357095070801	LJ-65-32-410	-93	-140	47
81	293351095171602	BH-65-30-603	-125	-157	32
77	293321095550901	JY-65-25-506	54	52	2
85	293453095283501	JY-65-29-405	-141	-183	42
86	293455095375701	JY-65-27-609	-77	-76	-1
87	293458095454301	JY-65-26-603	-11	-16	5
89	293506095481101	JY-65-26-202	15	17	-2
95	293648095394601	JY-65-27-322	-49	-45	-4
93	293641095545001	JY-65-25-301	57	56	1
96	293730095443301	JY-65-27-107	-8	-2	-6
97	293812095380901	JY-65-19-909	-122	-132	10
98	293909095012201	LJ-65-24-902	-84	-136	52
99	293946095441701	JY-65-19-704	-24	-6	-18
102	294043095504201	JY-65-18-404	1	9	-8
104	294158095024701	LJ-65-24-501	-86	-133	47
106	294237095093202	LJ-65-23-320	-94	-131	37
110	294322095041701	LJ-65-24-202	-57	-142	85
114	294342095034601	LJ-65-24-211	-98	-151	53
107	294302095411801	LJ-65-19-201	-57	-29	-28
111	294329095284603	LJ-65-21-150	-176	-314	138
120	294433095044701	LJ-65-24-215	-77	-116	39
119	294407095403701	LJ-65-19-203	-56	-44	-12
116	294400095510801	JY-65-18-101	17	17	0
123	294504094553601	DH-64-09-811	-62	-92	30
121	294458095044601	LJ-65-24-209	-83	-126	43
125	294521094545901	DH-64-09-924	-60	-87	27
126	294523094544401	DH-64-09-921	-54	-80	26
127	294527095014901	LJ-65-16-904	-81	-120	39
129	294527095014905	LJ-65-16-925	-75	-109	34
130	294527095014910	LJ-65-16-930	-80	-118	38
124	294518095393401	LJ-65-11-901	-59	-58	-1
132	294601095041901	LJ-65-16-814	-86	-140	54
133	294602095092403	LJ-65-15-917	-86	-129	43
134	294602095092405	LJ-65-15-920	-89	-135	46
131	294538095344601	LJ-65-12-801	-120	-108	-12
136	294637095022901	LJ-65-16-905	-85	-115	30
140	294728095200103	LJ-65-14-738	-137	-205	68
138	294726095351103	LJ-65-12-728	-65	-65	0
139	294726095351104	LJ-65-12-729	-76	-67	-9
142	294812095013001	LJ-65-16-602	-67	-101	34
141	294807095484901	LJ-65-10-518	10	19	-9
144	294924095024301	LJ-65-16-504	-61	-103	42
145	294932094551401	LJ-64-09-505	-58	-90	32
150	295505095462201	LJ-65-02-612	35	37	-2
153	295616095195802	LJ-65-06-526	-81	-68	-13
157	295646095324601	LJ-65-04-514	-219	-191	-28
162	295840095525901	LJ-65-01-301	175	174	1
169	300457095245801	LJ-60-61-601	52	55	-3
170	300521095365101	LJ-60-60-103	43	77	-34
173	300720095005201	SB-60-64-303	17	10	7
176	300748094554501	SB-61-49-807	6	12	-6
182	301408094442201	SB-61-51-101	52	48	4