From: Johnson, Rachel M. (Crossett) Sent: Tuesday, August 12, 2014 4:55 PM To: Reiber, Loretta Subject: GP Crossett - NPDES Permit AR0001210 Loretta, Please accept this email as notification that on Friday, August 15, we plan to start the trial using Ferric Sulfate as outlined in Item 1 of our request submitted on June 20, 2014. As indicated in the request, the maximum dosage will not exceed 30 ppm. It is expected that this treatment will reduce intermittent sublethal toxicity effects, as well as remove excess phosphorus at the end of the aeration basin. Dissolved Iron and Total Iron will be tested weekly at Outfall 001 for the duration of the trials to ensure that the dosage is optimized.