Table B-2.  Hydrologic characteristics of the subbasins.1

Topological number (NTOPO)	Subbasin	Area (ha)	Hydraulic Length (m)	Mean slope of the streambed (m/m)	Mean slope of the terrain (%)	Runoff curve number (CN)
10101	Troy Canyon	667	4200	0.0624	25.42	67
20101	Long Canyon 1	805	5040	0.0677	34.67	72
20102	Long Canyon 2	122	2160	0.0550	35.56	74
20201	Simmons Canyon	1623	7200	0.0787	18.63	62
20301	Noble Canyon	1976	5760	0.0841	39.90	75
20401	Nelson Canyon	302	2400	0.1168	32.01	80
20501	Horsethief Canyon	1107	8640	0.0423	31.94	78
20601	Espinosa Creek	647	4800	0.0762	35.30	82
20701	Diabold Canyon	949	4320	0.0282	19.80	68
20801	Miller Creek	2428	6360	0.0316	22.72	63
20901	Arroyo San Pablo	5983	16560	0.0217	22.51	82
30101	Kitchen Creek 1	441	3120	0.0498	37.33	76
30102	Kitchen Creek 2	2503	7920	0.0381	39.64	75
30201	La Posta Creek 1	2819	14160	0.0357	31.80	73
30202	La Posta Creek 2	6447	13920	0.0101	24.48	64
30301	Morena Creek	2025	4920	0.0458	27.68	73
30401	Morena Virtual	-	-	-	-	-
30501	Hauser Creek	857	3600	0.0618	35.56	62
30601	Pine Valley Creek 1	1305	6480	0.0310	37.70	78
30602	Pine Valley Creek 2	6924	14400	0.0241	28.00	71
30603	Pine Valley Creek 3	2128	9840	0.0211	40.62	81
30604	Null Reach	-	-	-	-	-
30605	Pine Valley Creek 5	741	5040	0.0194	43.36	73
30701	Corral Canyon	1377	5760	0.0644	26.98	68
30801	Wilson Creek	875	2400	0.0279	35.53	77
30901	Barrett Lake Virtual	-	-	-	-	-
31001	Rattlesnake Canyon	287	3360	0.1270	48.91	81
31101	McAlmond Canyon	1155	6480	0.0602	38.45	84
31201	Potrero Creek	4394	12720	0.0367	25.54	76
31301	Bee Canyon	478	2640	0.0623	38.34	82
31401	Campo Creek 1	2146	6960	0.0263	10.71	56
31402	Campo Creek 2	2167	4080	0.0284	16.94	65
31403	Campo - Tecate	13263	21600	0.0134	20.25	69
31404	Arroyo Tecate	8891	26160	0.0153	28.13	84
31501	Mine Canyon	790	4800	0.0546	40.73	85
31601	Alamar Virtual	-	-	-	-	-
40101	Cottonwood Creek 1	2950	9840	0.0242	26.97	74
40102	Cottonwood Creek 2	948	2400	0.0039	20.17	72
40103	Null Reach	-	-	-	-	-
40104	Morena Reservoir	3005	6600	0.0058	19.92	70
40105	Cottonwood Creek 5	652	2760	0.1195	43.58	79
40106	Cottonwood Creek 6	1942	5040	0.0127	30.46	66
40107	Null Reach	-	-	-	-	-
40108	Null Reach	-	-	-	-	-
40109	Barrett Lake	3851	6240	0.0029	37.16	70
40110	Cottonwood Creek 10	707	4920	0.0301	42.33	78
40111	Null Reach	-	-	-	-	-
40112	Cottonwood Creek 12	2598	5880	0.0047	41.04	76
40113	Cottonwood Creek 13	2156	6000	0.0107	35.27	77
40114	Cottonwood Creek 14	1457	3120	0.0098	38.89	79
40115	Cottonwood -Tijuana	432	1680	0.0036	28.58	73
40116	Tijuana - Alamar	5738	11280	0.0079	40.43	83
40117	Arroyo Alamar	7209	9960	0.0040	30.06	84
1	Troy Canyon	392	2880	-	22.86	68
2	Long Canyon	364	2040	-	25.04	70
3	Simmons Canyon	373	3360	-	56.83	81
4	Noble Canyon	1363	4800	-	22.40	57
5	Nelson Canyon	400	1560	-	22.36	78
6	Horsethief Canyon	401	1440	-	21.03	75
7	Espinosa Creek	912	2520	-	48.22	80
8	Diabold Canyon	569	3240	-	16.10	59
9	Miller Creek	1062	6120	-	17.79	60
10	San Pablo	4745	6240	-	12.36	84
11	Kitchen Creek	392	2520	-	34.47	74
12	La Posta Creek	1234	6480	-	24.73	65
13	Morena Creek	1754	7680	-	20.45	72
14	Morena Virtual	-	-	-	-	-
15	Hauser Creek	698	3360	-	27.06	74
16	Pine Valley Creek	1646	7680	-	22.86	64
17	Corral Canyon	1191	7920	-	25.04	80
18	Wilson Creek	1688	5880	-	36.94	79
19	Barrett Lake Virtual	-	-	-	-	-
20	Rattlesnake Canyon	313	1560	-	26.90	72
21	McAlmond Canyon	825	3240	-	24.70	72
22	Potrero Creek	2265	8520	-	18.42	70
23	Bee Canyon	917	5400	-	28.49	81
24	Campo Creek	869	4560	-	15.75	56
25	Mine Canyon	233	2400	-	41.36	84
26	Alamar Virtual	-	-	-	-	-
27	Cottonwood Creek	1840	6840	-	34.83	70

1 The lateral subbasins have a 5-digit NTOPO number; the upland subbasins have up to 2-digit NTOPO number. The "null reach" is a zero-length reach which is used to combine two or more tributaries at the same geometric location.