Surface Casing to Protect Groundwater: Am I Regulated? Surface casing letters are required by the Railroad Commission of Texas and issued by the TCEQ. These letters outline measures
to take to protect usable groundwater from contamination when drilling. Links to pages with forms and guidance.
Topics Under This Category:
Amending a Saltwater Disposal Letter How to request an amendment to a saltwater disposal letter that was issued this calendar year. Amendment needed when location,
total depth, elevation, or other well information changes.
Amending a Seismic or Surface Casing Letter How to request an amendment to a seismic or surface casing letter that was issued this calendar year. Amendment needed when
location, total depth, elevation, or other well information changes.
Requesting a Saltwater Disposal Letter How to request a saltwater disposal letter, which outlines groundwater protection measures for well activities regulated by
the Railroad Commission of Texas.
Requesting a Seismic Letter How to request a seismic letter, which outlines groundwater protection measures for exploration regulated by the Railroad
Commission of Texas.
Requesting a Surface Casing Letter How to request a surface casing letter, which outlines groundwater protection measures for the drilling of oil and gas wells
and other activities regulated by the Railroad Commission of Texas.