Two Dot successfully completed a Pit Closure plan per Colorado Oil and Gas Conservation Commission (COGCC), U.S. Environmental Protection Agency (EPA), and Colorado Department of Public Health and the Environment (CDPHE) regulations. After Two Dot collected contaminated soil samples from a cuttings pit in southern Colorado, compliance measures were implemented to remove liquid and solid waste. Offsite disposal was permitted, the pit closure plan was approved, and final reclamation was completed to release the site from the SWMP and CDPS general permits.

   In    order    to    plug,     abandon,    and    begin     final     reclamation    –    this    pit    had    to    be     properly    closed.    Injecting     fluids     back     in    to    the    well    was     not    an    option    so    removal     of    liquid   E&P     waste         was         the         only         option.

In order to plug, abandon, and begin final reclamation this pit had to be properly closed. Injecting fluids back in to the well was not an option so removal of liquid E&P waste was the only option.

   Soil         samples    were     collected    and    found    to    contain    Hydro-    carbons    and    Arsenic     levels    4,200    times     above    the    legal     limit.      

Soil samples were collected and found to contain Hydro- carbons and Arsenic levels 4,200 times above the legal limit.

 

Because levels of Hydro-carbons and Arsenic were so high COGCC, CDPHE, and EPA considered this Hazardous Type “B” waste. Two Dot coordinated with agencies to develop a “Clean Closure” protocol and worked with agencies to begin Site Investigation and Remediation Requirements under Rule 909b. After baseline soil samples and pit soil samples were analyzed, Two Dot completed a Liquid waste Profile form, Solid Waste profile form, and provided agencies a summary of Solid and Liquid waste lab analysis results. Once Two Dot completed the Site Investigation and Remediation Work plan, the cuttings pit was released, materials were removed, and final reclamation was initiated. Two Dot provided the final reclamation plan and the site was released from its CDPHE and WQCD Discharge Permitting System (CDPS) general permit for Stormwater Discharges Associated with Construction Activity.