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Groundwater water levels / confidence limits
 Rank: Member
Groups: Registered
Posts: 24  Location: Edmonton
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Attached is a pdf with a table that has groundwater depths from several pre-disturbance monitoring events. The water level data is then used to determine standard deviation. This information is used as part of a baseline assessment study. Could ESdat statistical package create this data automatically? This ties into another suggestion for ESdat...that of having ESdat produce water level tables (similar to a chem table) in a future release. File Attachment(s):  0814_001.doc (39kb) downloaded 2 time(s).You cannot view/download attachments. Try to login or register.
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 Rank: Administration
Groups: Registered, Administrators
Posts: 259
Location: Ballina
Was thanked: 8 time(s) in 8 post(s)
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The "Aggregate Summary" in ESdat can produce a summary table of your water levels (min, max, avg, standard deviation). It doesn't do a 95th percentile, but you can use the standard devination and average to calculate that 95th = avg + 1.64 x StdDev, if that formulae is appropiate. Tables of water levels with locations across the top, and dates down, like a Chemistry Table can be output from ESdat by either using the Pivot Tool (optional tool with Office), or producing a chart will also export the data as a table with the data cross-tabbed. Support attached the following image(s): Untitled.png (27kb) downloaded 7 time(s).You cannot view/download attachments. Try to login or register.
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Rank: Member
Groups: Registered
Posts: 24 Location: Edmonton
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Hi Alex That certainly helped. Thanks.
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