In Fiscal Year (FY) 2009-10, the State and Regional Water Boards conducted 2,547 site visits to take measurements and samples that resulted in 7,766 analyses. Monitoring needs, strategies, and resources vary among the Regional Water Boards, so the number of samples collected and analyses conducted also varies among the regions
Monitoring and assessment of the State�s surface waters provides data and information to determine the status and trends of their water quality condition. This data and information also allows the Water Boards to establish water quality standards, determine compliance with requirements, guide actions to protect these waters, and evaluate the effectiveness of pollution control efforts. The Water Boards' Surface Water Ambient Monitoring Program (SWAMP) monitors and assesses the State�s surface waters, directly and through collaborative partnerships, such as with the California Department of Water Resources and the California Department of Fish and Game, to support water resource management. Data from SWAMP is used for many purposes, including the State�s water quality assessment report, "Clean Water Act Section 305(b) Report on Water Quality", and the impaired water bodies list, "Clean Water Act Section 303(d) List".