Parts of the nation’s $500 billion farm bill that Congress is considering would prohibit the government from disclosing some information about farmers or their employees, possibly preventing people from learning about nearby agricultural and large-scale livestock operations blamed for polluting water or soil.

“Members of the public have a right to know about agricultural and livestock operations that affect them, including where such operations are located,” a coalition of 43 groups, including Society for Professional Journalists, Sunlight Foundation and Openthegovernment.org said in a letter Wednesday to House and Senate farm bill negotiators. “This information is especially critical for people who live near or share waterways with concentrated animal feeding operations.”

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