{"permit":"AR0049794","name":"Halliburton Energy Services, Inc - Magcobar Mine Site","state":"AR","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/AR0049794"},"about":[{"label":"What it is","text":"Chemical And Fertilizer Mining (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"Malvern, Arkansas","href":"https://www.openstreetmap.org/?mlat=34.467000&mlon=-92.821111#map=14/34.467000/-92.821111"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until May 31, 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