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Facility ID: 73505RPBLC881SW

Facility Name and Address:
 REPUBLIC PAPERBOARD CO.
8801 SW LEE BLVD
LAWTON, OK 73505

Parent Company: EAGLE MATERIALS INC

Industry: Paperboard Mills (322130)
Chemical: Nitrate compounds (water dissociable; reportable only when in aqueous solution)

Reports:
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Production Related Waste Management for Selected Chemical


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lchemid=N511
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Pollution Prevention Activities for Selected Chemical

Reporting Year Section 8.10: Newly Implemented Source Reduction Activity Section 8.10: Methods to Identify Activity Section 8.11: Optional Pollution Prevention Information*
2023 Barriers: B3-Barriers to P2 B3 - Concern that product quality may decline as a result of source reduction.

Barriers to P2: B3 - Concern that product quality may decline as a result of source reduction. - directly related to wastewater treatment
2022 Barriers: B3-Barriers to P2 B3 - Concern that product quality may decline as a result of source reduction.

Barriers to P2: B3 - Concern that product quality may decline as a result of source reduction. - usage directly related to wastewater treatment
2021 Barriers: B3-Barriers to P2 B3 - Concern that product quality may decline as a result of source reduction.

Barriers to P2: B3 - Concern that product quality may decline as a result of source reduction. - usage directly related to wastewater treatment.
2019 Source Reduction:: W50: Optimized reaction conditions or otherwise increased efficiency of synthesis[-0-4%]
Methods to Identify SR Opportunities: T03: Materials balance audits
2018 Source Reduction:: W50: Optimized reaction conditions or otherwise increased efficiency of synthesis
Methods to Identify SR Opportunities: T03: Materials balance audits
2017 Other Barriers to Source Reduction - Not enough information
2016 Other Barriers to Source Reduction - Not enough information.
2015 Other Barriers to Source Reduction - Not enough information.
2008 Other Environmental Practices - In previous reporting years the total nitrate compounds discharged to the potw was based upon the consumptoin of urea ammonium nitrate chemistry used in the mill's wastewater pretreatment plant and the analysis of ammonia as n in the effluent. In 2008 the mill contracted with a wastewater consultant to address some biological issues within the treatment plant. This consultant provided republic with an analysis that indicated that the microbiology in the process consumed the urea and that there were no nitrates in the effluent from the plant. Republic initiated a program with nelap certified independent laboratories to determine the nitrate levels in 24 hour composite effluent water samples. The results support the fact that the volume of nitrate compounds discharged to the potw in cy 2008 were below practical quantifiable limits with only two exceptions. The total discharge of nitrate compounds for cy 2008 was 259 pounds.
2007 Source Reduction - Republic uses urea ammonium nitrate to promote biological activity in its waste water pretreatment plant. In 2007, the mill changed the application and distribution system of this chemical to improve mixing and reduce consumption. However, during the reporting year the operation of the wastewater treatment plant was interrupted by three significant aeration system failures requiring the sequential reactor basins to be drained. Additional quantities of ammonia nitrate were required to promote increased aerobic activity and reestablish a healthy and active biomass. The city of lawton potw process all of the mills pretreatment effluent water through a series of trickle filters designed to denitrify any nitrate residual entering their plant.
2006 Source Reduction - Republic Paperboard uses ammonia based chemicals to promote biological activity in its waste water pretreatment plant. The quantity of residual ammonia in the mill's effluent is regulated by the City of Lawton. The current permit residual ammonia limit is 35.12 ppm. Using the permit limit and Republic's annual effluent, the maximum allowable discharge of ammonia is 77,466 lb. For RY 2006 the mill discharged 14,774 lbs of ammonia. This discharge is well within the permit limits. Steps have been taken to monitor effluent ammonia residuals and manage the application of ammonia based micronutrients to minimize residual quantities in the treatment plant discharge.
2005 Other Environmental Practices - Ammonium Nitrate Compounds are used as nutrients in our waste water treatment plant. During the reporting year we experienced an increase in nutrient addition resulting from increased influent to the treatment plant, higher biomass levels and increased winter temperatures.
*Classifications of Optional Pollution Prevention Information shown in brackets are provided by EPA.