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| Title | Dissolved Oxygen in the Spokane River Downstream from Inland Empire Paper Company with Recommendations for Waste Load Allocations for Biochemical Oxygen Demand | |||
| Month-Year Published | September 1994 | |||
| Online Availability |
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| Short Description |
A steady-state model of dissolved oxygen in the Spokane River from river mile 83.0 to 72.8 was developed using the USEPA stream water quality model QUAL2E. The model was calibrated and verified using data collected during August and September 1992. The segment of the Spokane River between Inland Empire Paper Company (IEPC) and Upriver Dam was found to be the most sensitive to changes in dissolved oxygen from loading of biochemical oxygen demand (BOD) by IEPC. (Also see abstract below) | |||
| Publication Number | 94-155 | |||
| Author(s) | Pelletier, G. | |||
| Print Availability | ||||
| Number of pages | 33 pp. + app. (69 total) | |||
| Keywords | chemical, chemical oxygen demand, dissolved oxygen, model, NPDES, recommendations, river, Spokane River, stream, waste, water, water quality | |||
| Subject Waterbodies |
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| Abstract | Long Description |
A steady-state model of dissolved oxygen in the Spokane River from river mile 83.0 to 72.8 was developed using the USEPA stream water quality model QUAL2E. The model was calibrated and verified using data collected during August and September 1992. The segment of the Spokane River between Inland Empire Paper Company (IEPC) and Upriver Dam was found to be the most sensitive to changes in dissolved oxygen from loading of biochemical oxygen demand (BOD) by IEPC. The QUAL2E model was used to determine waste load allocations (WLAs) for BOD loading from IEPC. Various loads of BOD were input to the model until the load which satisfied the dissolved oxygen criteria was found. WLAs based on the QUAL2E model results were found to be more restrictive than loading limits allowed under the previous NPDES permit during both permit periods. The following WLAs for daily maximum loading of 5-day BOD from IEPC were found using the QUAL2E model: 370 lbs/day during July-September; and 4,200 lbs/day during the October-June permit period. |
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