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This proposal outlines the approach and protocols for conducting a general visitor survey for the Middle Fork American River Project. It includes information on vehicle count data, sampling strategy, survey protocols, and proposed survey locations.
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Placer County Water Agency Middle Fork American River Project (FERC No. 2079) Proposed General Visitor Survey Approach and Protocols January 29, 2008
Introduction • Overview of Vehicle Count Data • General Visitor Survey Approach • Sampling strategy • Survey protocols
Overview of Vehicle Count Data • Vehicle counts were initiated in May of 2007 and will continue through May of 2008. • Vehicle counts were conducted at developed day use areas, dispersed concentrated use areas, turnouts, and Hell Hole Reservoir area campgrounds. • USFS data was used for French Meadows Reservoir area campgrounds • Summer data was compiled and distributed to the TWG on January 15, 2007. • Summary Data • Raw Data • Average daily vehicle count totals assumes complete turnover of vehicles between sampling periods.
Turnover • Adjusted vehicle count data based on turnoverrates • 1 = No or Low Turnover • 2 = Moderate Turnover • 4 = High Turnover • Different turnover rates for different types of sites • Campgrounds - no turnover • Developed day use areas - varies by site, from no turnover to 4 times a day • Dispersed concentrated use areas - varies by site, from no turnover to 4 times a day
Turnover Table 1 – Proposed Vehicle Turnover Rate by Location
Use Levels Table 2 - Vehicle Count Locations Organized by Use Levels
Survey Population • Estimated total survey population for holidays, weekdays, and weekend days based upon adjusted vehicle counts and 2.8 people per vehicle.
Sampling Design • Based on the survey population, calculated required number of samples to achieve a statistically valid sample size (± 10%) for individual sites. • Determined number of survey days based on: • The number of required samples • Average number of daily users on holidays, weekdays, and weekend days • Interception rate of 75% of potential users • Participation rate of 33%
Sampling Design Table 3 - Number of Surveys Required to Obtain Statistical Data for Each Individual Site
Considerations • Is it practical to obtain statistically valid information at every individual site? • If statistically valid information cannot be obtained at individual sites, is it possible to obtain statistical valid information if related sites are grouped? • Are there individual sites or groups of sites that do not fit into either of the above categories? • Are there sites where meaningful qualitative information could be collected? • Are there sites where use is so low that the collection of meaningful qualitative information is not practical.
Proposed Survey Approach • Proposed survey locations are organized based on use levels: • Individual sites proposed for statistical surveys – use is high enough to support statistically valid survey effort • Grouped sites proposed for statistical surveys – when individual sites are combined, use is high enough to support statistically valid survey effort • Grouped sites proposed for qualitative surveys - when individual sites are combined, use is high enough to warrant qualitative survey effort • Sites not proposed for survey – surveys are not feasible or practical due to very low use levels.
Proposed Survey Approach Table 4 – Site Grouping and Survey Requirements for ± 10% Margin of Error
Proposed Survey Approach Table 5 – Proposed Sampling Effort
General Protocols • Statistical sites will be sampled on weekdays, weekend days and holidays • Qualitative sites will be sampled on weekends and holidays • Stratify by month based on use distribution – June, July, August • Randomly select survey dates • Systematically select survey time blocks • Surveyors will remain on site for a 4 hour block on each designated survey day • Surveyors will interview all persons encountered during the four hour block, provided they are willing to participate
Site-specific Protocols • Campgrounds • Surveys will be conducted during AM blocks (8-12) or Evening blocks (4-8) only • All Other Individual Sites • Surveys will be conducted during AM blocks (8-12) or PM blocks (12-4) • Grouped Sites • Surveys will be conducted during AM blocks (8-12) or PM blocks (12-4) • Surveyors will rove through groups of sites over a 4-hour period • Starting points within each group of sites will be randomly selected • All persons encountered at any one site will be approached and asked to participate in the survey
Focus Groups and Flow Studies
Focus Groups • Focus Group concept outlined in the REC 4 – Stream-based Recreation Opportunities TSP • Three Focus Groups • Trail Use/Stream Crossing Focus Group • Angling Focus Group • Whitewater Boating Focus Group
Trail Use/Stream Crossing Focus Group • Participants • Representatives of Western States Trail Foundation • Tevis Cup event organizers • Equestrian users • Other trail users • PCWA • Resource Agency Representatives • Objectives • Develop information about: • Preferred stream crossing conditions • Endurance event timing • Coordination with PCWA • Safety concerns
Angling Focus Group • Participants • Local fishing guides and outfitters • Local anglers • Business owners • PCWA • Resource agency specialists • Other knowledgeable persons • Objectives • Develop information about: • Popular fishing spots • Fishing Access • Safety concerns • Flow-related issues • Develop list of comparable regional fishing streams
Whitewater Boating Focus Group • Participants • PCWA • Commercial outfitters and guides • Instructional teachers • Local and regional boaters • Resource agency specialists • Other knowledgeable persons • Objectives • Develop information about: • Specific boating runs • Existing and potential uses • Access conditions or constraints • Bootable flow ranges • Types of watercraft use • Timing
Focus Group Process • In consultation with TWG, develop a series of interview questions that are specific to each focus group. • TWG participants identify focus group participants. • Assemble focus groups and conduct focus group sessions. • Utilize information to: • expand information developed through existing sources • help define location of flow studies
Recreation Flow Studies • Recreation flow studies are described in the REC 4 – Stream-based Recreation Opportunities TSP. • Flow studies focus on three types of users: • Stream-crossing Users • Anglers • Whitewater Boaters
Stream Crossing Flow Studies • Objectives • Assess stream crossing conditions over a range of flows at specific (preferred locations) in the peaking reach • Timing • Coordinate with studies conducted as part of AQ 1 Instream flow TSP • Coordinate with whitewater boating flow studies • TWG actions • Identify flow study participants • Determine the locations to be assessed • Develop survey instrument
Angler Flow Studies • Objectives • Assess fishing conditions over a range of flows at specific (preferred) locations • Peaking reach • Rubicon River below Ellicotts Bridge • Estimate range of flows that support angling • Characterize angling fishability • Timing • Coordinate with studies conducted as part of AQ 1 Instream flow TSP • Coordinate with whitewater boating flow studies • TWG actions • Identify flow study participants • Determine the locations to be assessed • Develop survey instrument
Whitewater Boating Flow Studies • Objectives • Refine boatable flow ranges on following runs: • Indian Bar Rafting Access to Ruck-a-Chucky • Ruck-a-Chucky to Mammoth Bar • Mammoth Bar to Confluence • Confluence to Oregon Bar • Identify boatable flow ranges for a variety of watercraft, representing a range of skills, watercraft and interests • Maximum flow to be evaluated is 1,000 cfs. • Timing • Summer, during normal MFP operations • TWG actions • Identify participants with requisite skill levels • Develop survey instrument