EPA Alters Drilling Rig Engine Rules After NGWA Pressure
Agency changes Tier-4 engine replacement requirements for water well industry
The United States Environmental Protection Agency modified proposed rules regarding the replacement of engines in water well drilling rigs to allow for rigs up to 40 years old.
"The revised rule is a major improvement over EPA's previous proposal," said Denis Crayon, the National Ground Water Association's DOT-OSHA subcommittee chairman.