Need assistance uploading water quality data? EPA’s WQX Helpdesk can answer your questions about data submission and retrieval. If you have a basic question, the fastest way to get an answer is to chat via email WQX Helpdesk (wqx@epa.gov). You may also request an appointment by emailing wqx@epa.gov or calling the WQX Helpdesk 1-800-424-9067. (No appointment is needed for allowable domain values, services, or questions).
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