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Hempstead landfill clarification

I recently blogged about an update to the Hempstead landfill story, in which Green Group Holdings asked to amend its original filings regarding groundwater levels. I received an email on Monday from a Green Group representative, who sent me the following additional information:

  • On August 12, 2015, the Administrative Law Judges presiding over the hearing on the landfill permit application for the Pintail Landfill in Waller County granted a continuance of the hearing process to allow Pintail to evaluate new information regarding groundwater levels at the proposed site following recent extreme rainfall amounts.
  • TCEQ rules contemplate the incorporation of new groundwater data into the engineering design for a landfill.
  • Because of our commitment to environmental stewardship and engineering excellence, we believe that further evaluation of this new information is the responsible course of action and we requested a delay in the hearing process to allow for it.
  • This is consistent with Pintail’s approach to meet or exceed applicable requirements. For instance, the surface water detention ponds at the Pintail Landfill will have significantly more capacity than required. The surface water management system at a municipal solid waste landfill is required by rule to be designed and constructed to manage the rainfall from one 25-year storm event. However, the Pintail facility’s ponds are designed to manage stormwater from two back-to-back 100-year rainfall events.
  • For the Pintail site, groundwater levels in the 15 piezometers were measured over an 18-month period, from July 2011 until December 2012, including two 3-month periods during which rainfall in the area of the Pintail site was more than 150% of normal (see attachment for additional information).
  • The higher groundwater levels recently measured at the site followed a 3-month period in which rainfall amounts were well over 200% of normal.

Emphasis in the original. The attachment in question can be seen here. In the original Chron story that I blogged about, the folks fighting the landfill asked for a summary judgment denying the permit and dismissing the case after this happened; I haven’t seen any new stories relating to this, so I don’t know what the status of that is. In any event, I wanted to be as accurate as I can about this, so here you go. Thanks to Green Group for the feedback.

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