Questions about the Groundwater & Wells poster

What’s on the Groundwater & Wells poster?

A definition and 6 facts worth remembering. An aquifer stores and transmits groundwater; pumping draws the water table down in a cone around the well. Unconfined aquifer: the water table is free; Confined aquifer: water rises above the layer; Transmissivity is permeability times thickness; Drawdown grows with pumping rate and time; Overlapping cones cut each well's yield; Over-abstraction brings settlement and intrusion; Specific capacity — Yield per unit drawdown; Pumping test — Gives T and storage; Dewatering a deep basement can settle buildings hundreds of metres away.. Educational reference. Abstraction and construction dewatering normally need consent from the environmental regulator.

Who is the Groundwater & Wells poster for?

Groundwater & Wells belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning water resources can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Groundwater & Wells poster?

Planning an abstraction, or dewatering an excavation near buildings. A wall chart earns its place by being glanceable from where the work is happening, so Groundwater & Wells belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.

What other posters go with Groundwater & Wells?

Culvert Design, Continuity & Energy and The Water Balance sit alongside Groundwater & Wells in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Culvert DesignContinuity & EnergyThe Water Balance

Is the Groundwater & Wells poster free to download and print?

Yes. Groundwater & Wells downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence

What size does the Groundwater & Wells poster print at?

Groundwater & Wells is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Groundwater & Wells loses nothing.Printing guide