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Show [ Salt Lake City Wastewater Treatment Plant] [ Magna Wastewater Treatment Plant] Mineral Extraction Industries Magnesium Corporation of America - Permit Number UT0000779 Magcorp manufactures chlorine and calcium chloride as by- products of its magnesium production process. The plant is located on the west side of the lake in Rowley, Utah at approximately latitude 40 degrees 56f 43M and longitude 112 degrees 42' 20". Magcorp has a no discharge permit and discharge from or bypass of the holding pond is specifically prohibited for this facility; however, they are required to monitor calcium, Total Dissolved Solids ( TDS), iron and pH on a quarterly basis by grab sample at a test well and on standing water between the wastewater pond dikes and GSL. A pH lower than 6.5 requires State and EPA notification. If this data suggests any seepage from Magcorp's wastewater pond, Magcorp must develop and implement a control plan. The plant discharges 2 million gallons of low pH wastewater per day into a total containment pond and a portion is reacted with calcium carbonate which raises the pH and produces calcium chloride as a by- product. Two incidents of seepage have been detected since November, 1989, and neither of these qualify as outfalls because they did not result in a discharge into waters of the United States ( as of a 1993 letter- checking with Gayle Smith- DEQ). IMC Kalium Ogden Corp. ( former Great Salt Lake Minerals) - Permit Number UT0000647 IMC Kalium Ogden Corp is located in Ogden, Utah and produces potassium sulfate ( potash), sodium chloride and magnesium chloride. The wastewater from the processing of potash with lignonsulfonates which are used as a binder in the compaction process. This process produces dust that is controlled by a wet scrubber. The wastewater is discharged back to GSL with bitterns. The discharge point is located at approximately latitude 41 degrees 17' 0" and longitude of 112 degrees 13' 45" and the average flow is 4.5 million gallons per day. Wash water is taken from Harold Crane WMA. The average concentration of TSS is greater in the influent than in the effluent ( more solids are brought into the system than are discharged) and this makes it difficult for IMC Kalium Ogden Corp to meet its TSS limits. IMC Kalium is also required to develop a spill prevention control and countermeasure plan for those areas where lignonsulfonate is stored and shall only use lignonsulfonate produced without the use of chlorine. A new proposal to discharge is under consideration and involves pushing salt off the western edge of the dikes on their evaporation ponds into the Bear River Bay. Salt is currently disposed of by flushing the evaporation ponds with water from Bear River Bay and delivering it into the main body of the lake and Bear River Bay. USFWS, DNR, DEQ and IMC Kalium are working together to conduct a monitoring program to determine potential impacts, if any, to Bear River Bay. Akzo Salt Incorporated ( formerly Cargill Salt) - Permit Number UT0000639 This permit is currently being revised. There are two points of discharge, one at Lake Point and the other at Timpie Springs. The Lake Point facility discharges process scrub and wash water, that is used to clean 260 |