Mexico City is a case study relating to obtaining water through aquifers and the problems with aquifers.
Key Points Include:-
*Aquifer being drained quicker than it can be replenished
*Pavements/roads have cracked, areas are sinking and walls/buildings have buckled
*Water pipe built into the ground in 1934 is now 6m above ground
*Monument in Mexico City had 23 new steps built to reach its base
*Some suburbs with many wells continue to sink 45-60cm a year
*The city has stopped pumping water in the city centre, instead getting it from wells at the periphery
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