Texas Health and Safety Code - HEALTH & SAFETY § 756.002. Covering or Plugging Small Well or Hole; Criminal Penalty

(a) A person who drills, digs, or otherwise creates or causes to be drilled, dug, or otherwise created a well or hole that is at least 10 feet deep and less than 10 inches in diameter may not abandon the hole unless the person first:

(b) A person commits an offense if the person abandons a well or hole in violation of this section. An offense under this subsection is a misdemeanor punishable by a fine of not less than $100 or more than $500.