Evaluation of water-level recovery, 1996-97 to 1999-2000, and comparison of 1999-2000 and 1972-73 water levels in Goleta Central subbasin, Santa Barbara County, California
Water-Resources Investigations Report
2001-4127
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Abstract
Ground-water levels were measured during January 1999-June 2000 to evaluate the rate of water-level recovery in the Goleta Central ground-water subbasin that has resulted from injection of about 2,225 acre-feet of surplus water for storage in the ground-water basin. Injection of surplus water was tabulated and compared with water-level rises since 1996 to evaluate the effectiveness of the recharge effort. Water levels have risen about 4 to 37 feet since 1996-97. A preliminary water budget was compiled to assess recharge and discharge in the basin, and it is estimated that total inflow exceeded total outflow during 1998-99 by about 2,844 to 7,518 acre-feet. In addition, water levels for 1999-2000 were compared with water levels for 1972-73 to determine if a 'drought buffer' exists. Water levels measured in two wells during January 1999-June 2000 exceeded January 1972-June 1973 levels. Water levels in the remaining wells measured during January 1999-June 2000 ranged from less than 1 foot to about 32 feet below 1972-73 water levels. In general, the largest water-level rise between 1996-97 and 1999-2000 was about 37 feet in the southeastern end of the basin; the rise was less than 4 feet in the western end of the basin and about 10 feet north of the Goleta Fault. Long-term hydrographs indicate that water levels have been recovering throughout the basin since the early 1990's.
Suggested Citation
Densmore, J., Scrudato, M.C., Houston, E.R., 2001, Evaluation of water-level recovery, 1996-97 to 1999-2000, and comparison of 1999-2000 and 1972-73 water levels in Goleta Central subbasin, Santa Barbara County, California: U.S. Geological Survey Water-Resources Investigations Report 2001-4127, iv, 34 p., https://doi.org/10.3133/wri014127.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Evaluation of water-level recovery, 1996-97 to 1999-2000, and comparison of 1999-2000 and 1972-73 water levels in Goleta Central subbasin, Santa Barbara County, California |
| Series title | Water-Resources Investigations Report |
| Series number | 2001-4127 |
| DOI | 10.3133/wri014127 |
| Year Published | 2001 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | iv, 34 p. |
| Country | United States |
| State | California |
| County | Santa Barbara County |
| Other Geospatial | Goleta Central subbasin |