Caption:  The Chart Table flowclimate_amerstemtolay_wtrbd_mnth_questa.db shows results of a water budget and flow model conducted in Americano, Stemple, and Tolay Creeks by Questa Engineering Corporation for the City of Santa Rosa and U.S. Army Corps of Engineers. The water balance, using monthly time-steps, estimated stream flow for dry, normal, and wet rainfall years at Highway One for Stemple Creek, Highway 121 for Tolay Creek, and Valley Ford for Americano Creek. A dry rainfall year is represented by the lowest 30 percent of rainfall years, and a wet rainfall year from the highest 30 percent of rainfall years. The Americano Creek rainfall Data were determined by equally weighed data from the Gerritson and Erikson gauges, the Stemple Creek data from the Two Rock gauge, and the Tolay Creek data from the Sears Point gauge for all years in the historic record. The abbreviations in the table are defined RAIN = rainfall (inches), PET = potential evapotranspiration (inches), RUNOFF = runoff (acre-feet), GW = return shallow groundwater (acre-feet), OUTFLOW = outflow of watershed (acre-feet), FLOW = average stream flow (cfs), AMER = Americano Creek, STEM = Stemple Creek, TOLAY = Tolay Creek, DRY = dry rainfall years, NORMAL = normal rainfall years, and WET = wet rainfall years.

 

MONTH	RAIN_AMERDRY	RAIN_AMERAVG	RAIN_AMERWET	RAIN_STEMDRY	RAIN__STEMAVG	RAIN_STEMWET	RAIN_TOLAYDRY	RAIN_TOLAYAVG	RAIN_TOLAYWET	PET_AMERDRY	PET_AMERAVG	PET_AMERWET	PET_STEMDRY	PET__STEMAVG	PET_STEMWET	PET_TOLAYDRY	PET_TOLAYAVG	PET_TOLAYWET	RUNOFF_AMERDRY	RUNOFF_AMERAVG	RUNOFF_AMERWET	RUNOFF_STEMDRY	RUNOFF__STEMAVG	RUNOFF_STEMWET	RUNOFF_TOLAYDRY	RUNOFF_TOLAYAVG	RUNOFF_TOLAYWET	GW_AMERDRY	GW_AMERAVG	GW_AMERWET	GW_STEMDRY	GW__STEMAVG	GW_STEMWET	GW_TOLAYDRY	GW_TOLAYAVG	GW_TOLAYWET	OUTFLOW_AMERDRY	OUTFLOW_AMERAVG	OUTFLOW_AMERWET	OUTFLOW_STEMDRY	OUTFLOW__STEMAVG	OUTFLOW_STEMWET	OUTFLOW_TOLAYDRY	OUTFLOW_TOLAYAVG	OUTFLOW_TOLAYWET	FLOW_AMERDRY	FLOW_AMERAVG	FLOW_AMERWET	FLOW_STEMDRY	FLOW_STEMAVG	FLOW_STEMWET	FLOW_TOLAYDRY	FLOW_TOLAYAVG	FLOW_TOLAYWET
Sep	0.41	0.71	0.67	0.26	0.39	0.66	0.17	0.25	0.33	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	0	8.5	4.4	0	0	7	0	0	0	0	0.5	1.2	0	1	2.3	0	0	0	0	0.8	1.2	0	1	2.5	0	0	0	0	0.01	0.02	0	0.02	0.04	0	0	0
Oct	1.24	2.12	2.72	0.88	2.06	3.15	0.92	1.4	1.86	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	2.3	0.8	23.7	20.9	2.6	42.3	100.8	0.3	1.4	2.9	0	0	0	0	0	0	0	0	0	0.8	23.7	20.9	2.6	42.3	100.8	0.3	1.4	2.9	0.01	0.37	0.33	0.04	0.66	1.57	0.01	0.02	0.04
Nov	2	4.79	7.24	1.94	3.95	4.92	2.09	3.16	4.2	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	559.8	2993.7	5497.1	998.7	4089.3	5853.2	397.8	828.8	1294.2	0	0	0	0	0	0	0	0	0	559.8	2993.7	5497.1	998.7	4089.3	5853.2	397.8	828.8	1294.2	9.02	48.25	88.6	16.1	65.91	94.34	6.41	13.36	20.86
Dec	2.54	5.38	7.66	2.69	4.55	6.44	2.86	4.33	5.76	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	944	3587.7	5949.9	2022.7	5167.5	8789.5	701.6	1354.4	2035.9	155.7	224.8	284.8	285.4	392	453.7	47	58.8	65.9	1099.7	3812.5	6234.8	2308.1	5559.6	9243.2	748.5	1413.3	2101.8	17.15	59.47	97.25	36	86.71	144.17	11.68	22.04	32.78
Jan	4.91	7.29	10.47	3.57	6.6	9.53	3.93	5.95	7.91	1	1	1	1	1	1	1	1	1	3078	5597.7	9051	3433.1	9107	15099.2	1170.4	2128.4	3100.9	367.4	474.8	585.9	594.5	837.7	967	100.6	127.1	142.5	3445.3	6072.5	9636.9	4027.6	9944.7	16066.2	1271	2255.5	3243.4	53.74	94.71	150.31	62.82	155.11	250.59	19.82	35.18	50.59
Feb	3.63	4.84	6.3	3.11	5	7.17	2.62	3.97	5.28	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1859.7	3043.4	4499.5	2673.9	6003.3	10248.6	602.9	1188.6	1803.8	613.6	763.7	906	1010.1	1379.5	1586.4	168.7	212.4	238	2473.3	3807.1	5405.5	3683.9	7382.8	11835	771.6	1401	2041.7	42.71	65.74	93.34	63.62	127.49	204.37	13.32	24.19	35.26
Mar	3.29	4.28	5.96	3.22	4.42	6.07	1.74	2.64	3.51	2	2	2	2	2	2	2	2	2	1558.6	2495.3	4145	2851.5	4930.1	8060.2	275	611	981.7	596.5	741.4	907	496.8	1358	1609.8	84.8	106.6	230.5	2155.1	3236.7	5052	3348.3	6288.1	9670	359.8	717.6	1212.1	33.61	50.48	78.8	52.22	98.08	150.83	5.61	11.19	18.91
Apr	0.95	1.68	2.53	0.75	1.68	2.71	1.13	1.71	2.27	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	52.9	373.7	936.3	25.4	700.3	2052.7	98.2	265.1	465.2	287.7	355.4	430	263.6	649.5	766.9	44.9	56.7	109.9	340.5	729.1	1366.3	289	1349.8	2819.6	143.1	321.9	575.1	5.49	11.75	22.02	4.66	21.75	45.44	2.31	5.19	9.27
May	0.54	0.34	0.13	0.66	0.44	0.45	0.2	0.31	0.41	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	0	0	0	7	0	0	0	0	0	165.7	200	235.2	193.1	370.5	432.9	32.7	41	64.4	165.7	200	235.2	200.1	370.5	432.9	32.7	41	64.4	2.58	3.12	3.67	3.12	5.78	6.75	0.51	0.64	1
Jun	0.1	0.11	0.2	0.11	0.23	0.23	0.11	0.17	0.23	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	0	0	0	0	0	0	0	0	0	57.5	74.9	96.1	54.5	141.1	179	9.3	11.7	22.3	57.5	74.9	96.1	54.5	141.1	179	9.3	11.7	22.3	0.93	1.21	1.55	0.88	2.27	2.89	0.15	0.19	0.36
Jul	0.08	0.03	0	0	0	0	0.03	0.05	0.07	4	4	4	4	4	4	4	4	4	0	0	0	0	0	0	0	0	0	12.3	16.8	22	20.4	32.1	42.3	3.4	4.3	4.8	12.3	16.8	22	20.4	32.1	42.3	3.4	4.3	4.8	0.19	0.26	0.34	0.32	0.5	0.66	0.05	0.07	0.08
Aug	0.12	0.08	0.12	0.07	0.07	0.09	0.05	0.08	0.11	4	4	4	4	4	4	4	4	4	0	0	0	0	0	0	0	0	0	4.4	6	7.9	7.5	11.6	15.5	1.3	1.6	1.8	4.4	6	7.9	7.5	11.6	15.5	1.3	1.6	1.8	0.07	0.09	0.12	0.12	0.18	0.24	0.02	0.02	0.03