The White House has recommended cutting the Environmental Protection Agency’s budget by 25 percent and eliminating thousands of jobs and more than a dozen programs, according to an opponent of the budget plan.

The Office of Management and Budget blueprint given to the EPA includes ending programs such as one that protects coastal beaches and another that safeguards homeowners against radon poisoning. Grants to states would be slashed by 30 percent under the plan.

“These are shocking figures,” said William Becker, the executive of the National Association of Clean Air Agencies, who obtained the plan. “These budget cuts would...