| Blue Rock Springs Creek | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | California |
| Subdivision Type3: | Region |
| Subdivision Name3: | Solano County |
| Subdivision Type5: | City |
| Subdivision Name5: | Vallejo |
| Source1: | Sulfur Springs Mountain |
| Source1 Location: | 10miles east of Vallejo |
| Source1 Coordinates: | 38.1119°N -122.1844°W |
| Source1 Elevation: | 400feet |
| Mouth: | Rindler Creek |
| Mouth Location: | Solano County Fairgrounds in Vallejo |
| Mouth Coordinates: | 38.1308°N -122.2278°W |
| Mouth Elevation: | 85feet |
Blue Rock Springs Creek is a 3.4adj=midNaNadj=mid[1] stream that rises on Sulfur Springs Mountain in southwestern Solano County, California. A bicycle trail is positioned along the creekside in some of the lower reaches.[2] Water quality is impaired in Blue Rock Springs Creek due to historic cinnabar extraction in this watershed. Blue Rock Springs Creek has been tested for the toxin diazinon and found to have attained an elevated value of 40.9 micrograms per liter; diazinon is a toxic pesticide associated with golf course maintenance. The 36-hole Blue Rock Springs Golf Course lies in this watershed; although diazinon has been banned for golf course use in the U.S., its persistence in the environment is quite high. The stream has had application of a hydrological transport model to analyze flooding potential and to aid in the design of certain stream channel modification carried out in the last quarter of the 20th century to accommodate urbanization of some of the lower reaches.
Cinnabar deposits were extracted from this watershed in the early 1900s at Hastings Mine and St. John's Mine.[3] [4] Shaft construction occurred no earlier than 1918 and mining had ceased by the year 1930.