Location	Surveyed Trees	Symptomatic Oak Nearby? %	Sampled Trees	SOD Positive Sampled Trees %	Estimated True Infection Rate %	Symptomatic Surveyed Trees %
Big Sur	165	26.1	23	52.2	42.4	81.2
Carmel	966	1.4	211	15.2	5.4	35.7
Del Norte	160	7.7	13	15.4	1.0	6.3
East Bay-East	408	0.0	26	7.7	0.5	5.9
East Bay-South	7	0.0	11	0.0	0.0	100.0
East Bay-West	133	8.5	71	22.5	12	53.4
Humboldt	3771	25.6	39	23.1	3.9	17.1
Marin	1241	8.6	151	25.2	7.1	28.3
Mendocino	669	16.2	37	5.4	0.5	9.0
Napa	265	12.0	50	22.0	7.6	34.7
Peninsula-East	715	8.0	87	10.3	1.7	16.8
Peninsula-North	63	25.0	16	18.8	6.3	33.3
Peninsula-South	501	11.5	52	53.8	21.6	40.1
Peninsula-West	3116	23.6	445	40.4	18.1	44.6
San Francisco	1314	12.0	192	0.0	0.0	18.8
San Luis Obisbo	682	2.6	116	0.0	0.0	16.7
Santa Cruz	1036	0.0	19	21.1	0.4	1.9
Sonoma-East	594	11.5	96	45.8	20.4	44.6
Sonoma-North	87	0.0	19	5.3	1.0	19.5
Sonoma-West	217	7.5	40	25.0	9.0	35.9
Trinity-Siskiyou	117	5.6	18	0.0	0.0	4.3
Total=	16227	12.4	1732	19.2	5.9	30.9