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RT @USGS_Pubs: Groundwater quality in the High Plains Aquifer, https://t.co/u8wJfwYoF4 https://t.co/ug91Q7cNCX
RT @USGS_Pubs: Groundwater quality in the High Plains Aquifer, https://t.co/u8wJfwYoF4 https://t.co/ug91Q7cNCX
Groundwater quality in the High Plains Aquifer, https://t.co/u8wJfwYoF4 https://t.co/ug91Q7cNCX