Table 9

Table 9. Basin characteristic values used to develop the final probability and estimating equations for low-flow frequency statistics for unregulated streams in regions 1-8 in Idaho.

[Locations of regions are shown in figure 1. Equation variables: A, drainage area, in square miles; P, mean annual precipitation, in inches; DV, developed land, in percentage of drainage area; AG, agricultural land, in percentage of drainage area; BS, basin slope, in percent; W, water, in percentage of drainage area; R, basin relief, in feet; V, surficial volcanic rocks, in percentage of drainage area; S50, slopes greater than 50 percent, in percentage of drainage area]

Gaging station No.	Equation variables
Gaging station No.	A	P	DV	AG	BS	W	R	V	S50
Region 1
12305500	55.3	48.3	0.001	0.005	37.1	0.018	4,134.8	14.1	18.0
12311000	133.1	30.4	1.13	6.47	21.2	.721	5,376.7	12.3	4.09
12316800	12.5	29.1	.088	.042	25.4	.004	3,178.5	4.65	1.89
12320500	29.9	41.3	.000	.009	46.4	.009	5,803.1	.000	41.4
12321000	71.1	46.1	.368	.269	37.0	.343	5,866.9	.000	22.9
12392155	115.1	54.3	.081	.347	43.2	.168	4,844.3	3.78	37.7
12392300	121.4	38.1	.463	.519	32.2	.366	5,441.4	.000	12.7
12393500	596.6	38.8	.328	.141	28.9	6.69	5,124.1	21.1	14.1
12396000	68.2	36.7	.017	.972	30.1	.347	3,731.6	17.6	8.12
12408500	82.5	37.7	.119	1.30	29.6	.016	3,832.5	4.45	11.1
12409000	1,011.0	27.6	.983	9.74	22.3	.777	5,308.7	15.3	6.39
12427000	84.4	28.2	2.04	6.30	13.2	.618	2,230.6	9.75	1.80
12431000	634.9	25.1	3.59	23.2	12.2	.895	4,281.5	27.9	1.04
Region 2
12301300	460.2	32.7	0.463	1.86	24.5	0.830	4,956.2	0.000	13.7
12301999	216.0	24.8	.205	.214	24.3	.041	3,996.5	.000	5.19
12302000	785.3	28.1	.122	1.15	26.7	.265	5,103.5	.000	10.0
12302055	843.7	28.0	.175	1.07	27.2	.249	5,413.7	.000	10.5
12302500	23.7	53.0	.033	.000	54.1	.847	5,917.3	24.5	56.1
12303100	11.3	52.6	.009	.000	48.3	1.60	4,788.9	4.35	43.6
12303500	125.0	43.9	.735	.426	38.5	.300	5,752.5	9.89	33.8
12340000	2,283.6	29.4	.006	4.43	25.7	.858	6,056.4	9.00	11.6
12341000	80.7	37.1	.935	.087	36.7	.623	5,406.1	.600	26.0
12343400	379.3	28.4	.079	.569	33.2	.164	5,278.4	82.2	16.2
12344000	1,049.7	31.9	.044	.553	37.7	.185	6,187.1	65.1	24.0
12346500	88.1	29.6	.037	.000	38.8	.071	4,576.0	15.5	26.0
12347500	26.1	60.9	.000	.000	57.0	.397	4,871.1	80.4	59.4
12350000	27.8	55.0	.000	.000	52.1	.269	4,957.9	83.6	53.0
12350500	29.0	55.6	.000	.000	58.8	.368	5,711.5	88.4	66.4
12351000	73.0	30.6	.102	.589	36.5	.123	4,390.9	2.39	20.3
12352000	250.3	46.7	.180	.669	35.4	.029	5,865.4	37.3	20.1
12353280	169.7	28.7	.046	2.31	31.2	.019	4,956.2	.000	14.1
12354000	43.6	44.5	.007	.000	47.2	.066	4,434.8	.000	44.8
12375900	7.6	55.1	.000	.000	59.7	3.98	5,273.5	.000	59.7
12377150	12.4	69.4	.000	.000	66.8	1.21	5,901.2	.000	67.4
12389500	641.5	29.6	.063	.362	30.0	.797	4,998.9	.000	14.5
12390700	181.5	43.7	.038	.036	43.5	.039	4,349.7	.000	37.9
12411000	334.0	48.2	.021	.006	40.8	.170	3,722.1	.000	30.7
12413000	893.7	45.4	.076	.177	41.9	.223	4,637.1	.151	32.7
12413140	15.0	41.5	.042	.000	49.6	.000	3,461.3	1.94	52.9
12413150	105.6	42.5	.779	.338	45.8	.130	4,133.8	2.83	43.8
12413210	181.8	43.3	1.22	.224	45.8	.127	4,438.3	1.64	43.9
12413470	287.1	45.1	1.83	.200	44.6	.220	4,605.6	1.04	41.2
12413500	1,207.4	45.0	.552	.199	42.3	.239	4,673.2	0.360	34.3
12414500	1,024.5	47.0	.036	.014	41.3	.057	5,487.6	2.96	30.2
12414900	272.6	37.7	.470	2.44	25.1	.140	3,792.4	8.60	3.45
12415000	434.5	35.6	.422	1.54	23.8	.154	4,214.6	13.9	3.13
12416000	21.5	38.8	.092	.104	41.8	.126	3,243.5	.000	28.7
13336500	1,913.1	40.6	.000	.000	44.2	.190	7,789.6	56.1	38.6
13336900	88.3	46.3	0.007	0.000	34.7	0.027	4,633.9	99.9	21.1
13337000	1,179.4	46.6	.051	.000	38.5	.191	7,331.2	68.5	28.0
13340500	997.5	52.5	.006	.000	39.0	.058	5,663.4	31.0	26.2
13340600	1,294.2	51.4	.004	.001	40.4	.059	6,182.5	33.0	29.5
13341000	2,442.5	47.6	.016	.157	36.5	1.04	6,894.5	25.6	23.1
13341300	3.0	48.1	.000	.000	32.0	.000	1,643.9	.000	7.74
13341400	42.7	42.7	.001	.034	26.3	.000	2,146.1	.000	2.62
Region 3
12424000	674.9	20.8	2.55	64.8	10.5	0.186	3,187.9	17.8	0.431
13334700	170.5	23.0	.031	7.46	35.4	.006	5,098.9	92.7	27.5
13341500	453.7	29.5	.865	32.0	18.2	.258	3,849.7	35.7	2.76
13342450	268.9	19.3	.784	33.3	18.9	.248	4,100.8	68.7	7.82
13345000	316.0	30.1	.863	25.0	21.2	.165	2,859.7	16.1	2.49
13346100	491.7	26.9	1.11	48.3	17.7	.153	3,350.1	14.5	1.74
13346800	17.6	24.5	18.6	63.4	11.8	.030	1,801.2	34.4	.128
13348000	126.9	23.8	5.54	83.9	11.9	.041	2,637.5	34.4	.152
13348500	27.1	23.2	6.34	91.6	10.0	.008	1,442.8	33.8	.018
Region 4
13196500	4.8	22.1	0.000	0.000	32.9	0.000	2,396.4	100	10.6
13200000	397.0	24.8	.008	.005	31.3	.014	5,019.7	92.9	13.2
13200500	16.0	23.3	.000	.000	39.8	.000	3,410.5	99.4	27.4
13201000	424.4	24.5	.009	.010	31.7	.132	5,068.8	92.8	14.1
13207000	19.2	19.4	.082	4.15	24.3	.025	3,094.6	71.3	3.21
13207500	59.4	20.4	.051	5.42	25.3	.011	4,310.4	50.6	6.73
13250600	55.2	15.9	.002	.006	23.6	.000	2,987.5	97.2	3.77
13251300	4.0	39.8	.000	.423	27.3	.000	1,821.4	97.6	3.98
13251500	36.6	34.6	.061	5.55	22.3	.000	1,896.9	86.4	1.53
13253500	105.4	32.3	.025	1.93	26.5	.005	4,662.7	93.5	5.94
13256000	391.9	29.6	.069	4.24	24.2	.318	5,242.5	91.9	5.22
13257000	86.1	34.0	.013	.672	27.4	.026	5,221.5	80.0	6.87
13258500	596.4	29.2	.051	3.60	23.5	.293	5,444.7	88.2	4.86
13260000	55.3	22.4	.003	.673	26.4	.034	5,035.8	97.9	8.01
13261000	79.5	28.2	.002	.011	26.9	.008	4,618.1	89.5	6.12
13267000	56.8	22.1	.001	.007	31.6	.963	4,800.2	89.9	11.4
13269300	110.8	25.1	.024	1.21	18.7	.008	3,066.8	59.3	1.27
13270800	38.9	28.6	.003	.052	28.2	.000	3,427.4	100	7.38
13275500	205.2	24.7	.111	2.42	26.5	1.04	5,393.4	28.9	10.5
13288200	155.7	47.5	.000	.007	40.5	.144	6,684.6	56.7	32.3
13289960	177.1	27.5	.001	.810	29.4	.009	6,313.8	85.3	15.4
13290190	298.5	33.7	.032	8.34	27.4	.060	7,681.4	77.3	13.2
13291000	99.9	56.2	.000	.005	37.1	.092	5,791.9	62.6	27.1
13315500	15.1	35.4	.000	.418	27.4	.000	2,183.3	98.7	1.31
13316500	576.1	29.6	.039	3.83	33.4	.228	7,591.0	66.2	20.9
13316800	15.3	30.2	.038	.000	30.6	.014	3,191.9	100	19.3
13319000	687.4	27.6	.126	.149	20.3	.061	5,095.2	83.7	3.83
13320000	104.1	39.7	.001	.001	28.6	.007	5,586.1	97.2	12.9
13323600	24.8	43.6	0.000	0.000	21.3	0.000	3,278.0	100	3.31
13325500	43.7	65.6	.000	.000	50.9	.887	5,390.9	80.5	53.1
13329500	29.6	64.6	.000	.000	57.2	.876	5,298.0	45.4	63.1
13330000	71.5	56.7	.064	.276	49.2	.512	5,981.8	75.6	50.5
13330500	72.1	44.7	.104	.736	45.6	.085	5,859.0	95.6	43.9
13331500	239.2	46.5	.017	.169	43.5	.472	6,598.7	98.2	41.1
13337500	260.8	35.3	.018	.001	24.1	.008	3,584.2	18.2	2.05
13338000	843.4	34.9	.007	.000	29.7	.055	7,070.0	29.7	11.1
13338500	1,168.3	31.3	.120	18.4	25.7	.068	7,553.9	48.0	9.56
13339000	4,827.4	38.3	.057	7.94	36.2	.203	8,163.1	57.4	26.2
13339500	241.4	31.5	.001	5.93	22.6	.005	4,938.4	74.8	5.75
13340000	5,507.9	37.4	.055	8.65	34.4	.208	8,364.5	58.2	23.9
14010000	61.9	46.4	.000	.000	46.3	.000	3,818.7	100	52.1
14011000	42.6	42.2	.000	.006	42.1	.006	4,263.5	96.8	40.4
Region 5
13135500	137.5	31.4	0.044	0.009	40.6	0.041	4,932	37.3	33.3
13136500	92.6	35.8	.002	.015	42.6	.011	4,229	47.4	35.2
13139500	627.6	29.4	.273	.530	42.7	.048	6,616	27.5	39.2
13141000	786.2	26.5	.379	2.05	40.2	.079	7,120	27.1	36.1
13185000	831.6	32.4	.002	.001	44.3	.070	7,338	83.6	41.3
13186000	641.6	34.7	.007	.002	42.1	.035	6,089	91.9	35.2
13186500	133.6	22.4	.000	.000	29.3	.002	5,459	97.1	10.4
13187000	55.6	32.2	.000	.000	33.6	.007	5,094	96.4	16.0
13235000	449.3	34.5	.027	.001	46.7	.294	6,786	81.1	46.1
13240000	48.7	37.2	.000	.040	42.1	.087	3,861	86.6	36.4
13292500	93.9	34.7	.090	2.34	32.8	.022	3,434	43.0	25.1
13293000	35.6	44.5	.000	.000	37.6	4.37	3,579	70.5	34.0
13295000	148.9	23.9	.076	2.30	26.1	.627	4,478	39.8	13.0
13295500	510.4	29.6	.092	2.44	30.4	1.46	4,677	38.0	19.9
13296000	187.3	27.1	.003	.008	41.0	.048	4,201	95.2	32.9
13296500	811.1	28.0	.066	1.55	33.6	.977	4,965	59.3	23.0
13308500	133.8	28.4	.068	.002	26.6	.158	3,135	83.4	11.3
13309000	181.7	30.0	.000	.000	20.2	.086	2,987	71.7	3.47
13309220	1,037.9	29.0	.008	.009	38.4	.127	5,307	83.3	31.9
13310000	451.5	28.7	.001	.001	44.3	.050	5,385	69.1	42.1
13310199	2,871.6	26.9	.003	.009	45.4	.173	7,277	70.2	44.4
13310500	91.7	37.5	.000	.001	31.7	.030	3,717	92.4	13.5
13310700	329.3	33.6	.000	.002	38.0	.215	5,387	92.9	26.8
13311000	19.3	34.0	2.21	.068	35.3	.095	2,744	96.5	17.3
13311500	42.9	30.9	1.86	.033	40.8	.067	3,364	100.0	31.9
13312000	106.9	30.0	.759	.013	41.7	.072	4,183	99.4	34.2
13313000	216.4	34.3	.006	.008	28.2	.085	4,458	87.0	12.6
13313500	102.5	43.9	.002	.000	24.8	.078	3,005	84.9	6.41
13314000	1,164.0	33.2	.071	.004	37.4	.115	6,378	93.8	27.0
13314300	1,306.0	32.9	.065	.013	38.9	.126	7,117	92.4	29.9
13315000	12,228.0	24.4	.050	1.65	37.8	.238	10,701	53.3	30.3
Region 6
6013500	277.0	18.8	0.020	0.000	24.1	0.032	4,691.8	9.77	10.0
6015500	349.0	19.2	.014	2.99	18.8	.016	5,193.8	20.5	3.70
6019500	525.5	22.9	.002	2.13	20.1	.025	5,130.4	2.32	5.36
6037500	434.9	42.3	.166	.000	11.3	.264	2,785.6	81.6	2.13
13108500	228.4	26.8	.000	9.27	12.8	.128	3,641.5	34.2	2.35
13112000	393.9	21.1	.016	9.10	8.60	.075	5,062.4	60.6	1.36
13113000	123.2	20.3	.383	3.12	19.6	.017	3,015.2	4.85	2.10
13113500	238.7	19.4	.385	2.05	16.7	.009	3,696.0	38.3	2.02
13117300	74.2	23.8	.004	.099	32.7	.008	4,280.2	35.3	16.1
13120000	114.7	29.8	.000	.000	43.1	.094	4,984.0	34.0	38.0
13120500	440.4	27.0	.005	.030	37.8	.233	5,284.1	42.3	28.6
13128900	8.4	26.6	.000	.000	66.2	.056	5,123.4	0.000	77.2
13297330	29.5	22.6	.064	.057	47.7	.035	3,963.8	61.5	46.9
13297350	6.4	21.7	.180	.090	40.8	.000	3,470.0	29.7	32.4
13297355	71.6	25.2	.018	.012	36.3	.042	4,114.3	62.0	22.4
13297450	18.3	32.0	.000	.000	41.3	1.19	5,501.5	60.5	28.0
13298000	540.2	26.0	.001	.089	38.2	.167	6,227.5	81.9	25.9
13299000	84.6	25.6	.000	.340	37.2	.175	4,996.6	93.0	25.1
13302500	3,746.1	21.6	.084	2.54	33.4	.398	8,655.9	50.9	22.7
13305000	907.1	15.6	.017	5.83	25.2	.033	6,430.2	10.3	14.4
13305500	1,258.0	15.3	.017	7.05	26.4	.028	7,370.8	12.2	14.7
13306000	210.3	22.9	.173	.440	43.6	.010	6,244.4	3.96	37.4
13306385	40.7	24.9	.001	.022	22.9	.000	2,395.4	4.28	2.58
13306500	520.7	24.0	.000	.029	38.6	.039	6,652.8	9.68	29.4
13307000	6,236.7	20.4	.070	3.23	33.3	.281	9,419.7	34.9	23.0
Region 7
10119000	107.1	13.2	0.039	21.3	17.7	0.434	3,724.2	15.1	2.39
10172940	28.7	17.0	.000	.000	17.5	.000	2,659.9	6.02	0.19
10315500	389.8	15.2	.002	3.51	17.5	.002	5,032.4	44.9	4.76
10329500	176.2	21.9	.001	.017	21.0	.048	4,930.3	90.9	4.26
10352500	225.4	17.0	.000	6.16	17.3	.023	3,931.3	88.6	2.99
10353000	137.9	22.2	.005	.022	22.2	.017	3,436.4	87.6	4.12
10396000	204.7	29.1	.001	.002	16.2	.096	5,455.7	98.8	7.28
10406500	86.7	16.9	.011	1.64	23.1	.009	3,926.9	87.3	6.50
13057940	431.4	16.6	.001	14.5	13.3	.039	2,544.2	31.5	0.68
13075000	367.4	14.3	.296	28.1	16.8	.088	4,652.6	20.5	4.70
13077700	7.8	23.6	.000	.000	32.6	.031	2,707.3	.000	16.2
13079100	7.4	21.8	.000	.014	25.2	.000	1,681.7	11.5	2.38
13092000	81.6	14.5	.001	.174	31.6	.001	3,685.2	86.1	19.9
13154000	103.3	14.0	.000	1.64	15.1	.039	3,683.5	83.6	1.82
13155300	14.2	23.5	.033	.000	25.2	.000	2,397.6	100.0	5.26
13161500	380.8	18.3	.000	1.86	25.1	.021	4,956.4	56.5	8.87
13162500	84.9	24.8	.001	.035	35.3	.023	5,683.3	86.5	28.5
13169500	243.7	13.8	.000	.016	10.1	.006	3,447.7	96.1	3.62
13170000	103.4	14.2	.000	.002	13.2	.000	3,447.5	89.9	6.08
13172680	18.7	21.2	.000	.011	23.0	.126	2,569.4	100.0	2.53
13172720	12.5	13.6	.000	3.60	21.1	.092	2,467.9	96.9	1.13
13172735	13.1	14.7	.048	.052	26.1	.008	2,329.3	100.0	4.88
13172740	91.8	14.8	.010	4.27	20.2	.107	3,719.2	91.5	1.72
13176000	452.3	21.6	.112	1.24	20.6	.599	3,672.2	60.1	3.84
13177000	26.8	29.3	0.005	0.505	29.9	0.016	4,247.5	0.362	10.5
13178000	454.2	26.1	.258	.726	19.5	.221	3,905.0	79.3	3.69
13226500	535.3	12.3	.016	1.86	17.4	.026	3,958.2	73.5	1.47
Region 8
9208000	6.6	40.3	0.000	0.000	29.6	0.000	1,442.8	0.000	10.6
9224000	390.1	23.6	.057	.434	15.4	.747	3,048.4	.000	1.56
10010400	34.5	40.4	.000	.101	39.5	2.15	3,997.8	.000	31.1
10015700	58.5	21.6	.000	10.8	9.65	.000	2,997.9	.000	.002
10032000	165.2	34.1	.000	.000	31.3	.500	4,033.0	.000	13.3
10040000	45.4	23.8	.000	.000	26.5	.051	2,730.5	.000	6.05
10040500	37.8	26.8	.000	.000	28.0	.046	2,443.9	.256	5.46
10041000	113.8	25.1	.000	.000	27.4	.024	2,826.5	.085	6.25
10047500	50.6	21.5	.000	.000	32.0	.390	3,225.2	.000	15.5
10058600	24.3	35.1	.000	.000	27.4	.071	3,487.4	.806	7.64
10069000	21.9	26.1	.000	.000	41.0	.044	3,534.8	.000	31.9
10077000	50.9	18.2	.000	70.7	6.15	.157	1,100.5	77.0	.639
10093000	30.4	36.0	.000	.000	31.3	.022	3,983.1	.000	19.4
10096000	23.2	14.2	.011	17.9	19.8	.000	1,695.4	.000	1.13
10099000	16.3	40.9	.000	.000	49.4	.003	4,510.9	.000	50.2
10102300	11.6	39.3	.000	.000	53.2	.182	4,577.3	.000	60.5
10104700	62.2	38.0	.000	1.05	30.1	.040	4,381.5	.000	14.5
10104900	56.8	35.4	.000	.000	28.3	.040	3,719.8	.000	16.3
10105000	69.2	35.2	.000	.000	30.1	.368	3,932.8	.000	18.9
10109000	214.4	35.6	.010	.008	33.3	.175	5,255.6	.000	20.0
10113500	264.6	28.3	.000	.153	28.5	.097	4,206.7	.000	14.9
13010065	502.5	47.4	.036	.000	15.8	3.83	3,509.4	45.0	3.12
13011500	162.7	36.3	.076	.000	20.3	1.70	3,763.2	17.8	3.75
13011900	330.1	37.1	.055	.407	27.0	.296	4,566.8	6.88	13.4
13012000	370.2	36.6	.056	.984	26.3	.264	4,619.9	6.16	12.5
13014500	608.0	31.6	.015	.516	23.3	.436	5,015.9	.127	7.14
13018300	10.7	34.7	.000	.000	40.3	.049	3,551.7	.000	27.6
13019438	82.7	31.0	.154	.182	38.6	.030	4,943.0	.585	26.3
13019500	561.3	26.7	.032	2.55	30.3	.020	5,650.1	.086	16.3
13023000	448.8	34.9	.003	.105	35.1	.059	5,632.6	.000	22.5
13024500	25.7	39.5	.000	.000	45.1	.311	3,738.3	.000	40.0
13025000	27.7	39.3	.000	.000	49.3	.000	4,223.5	.000	52.2
13025500	113.8	29.4	.000	2.83	24.9	.261	3,647.1	.000	5.63
13027000	20.1	40.8	.000	.000	49.7	.000	3,663.7	.000	50.1
13032000	78.3	26.7	.000	.000	38.8	.135	3,806.4	.000	26.3
13044500	131.1	31.8	.000	.000	9.05	.255	2,604.8	62.8	.475
13045500	123.7	35.3	.000	2.44	10.6	.582	2,516.2	61.5	1.05
13046680	85.4	56.0	.001	.000	6.94	.232	2,270.2	90.1	.656
13046995	322.3	53.5	.001	.000	10.9	1.48	3,501.7	84.2	1.75
13047500	333.6	52.9	.000	.110	11.0	.755	3,655.8	82.8	1.71
13047600	336.9	52.2	.001	2.35	10.8	1.48	3,897.7	82.0	1.68
13049500	512.9	42.6	.020	19.5	9.89	.582	4,197.5	71.3	1.52
13052200	341.4	31.7	.176	24.8	23.6	.290	5,223.4	9.11	15.4
13054000	479.2	30.3	.138	26.7	21.5	.350	5,277.0	18.7	12.9
13055000	874.8	27.7	.080	32.8	19.0	.281	6,232.1	47.7	9.69

Back to Table of Contents

For more information about USGS activities in Idaho, visit the USGS Idaho Water Science Center home page .

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065035
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 18:54:57 EST