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HomeMy WebLinkAboutDERR-2024-007833E:\RPB_Water QualiŠd Assurance.doc Bingham Canyon Water Treatment Plant Water Quality and Assurance March 2, 2006 Water produced by the Bingham Canyon Water Treatment Plant will be of very high quality. The water quality will meet all state and federal drinking water standards. Jordan Valley Water is proud of its ability and commitment to deliver safe, high quality water to the communities it serves through analysis, monitoring, process control and providing on-going training and education for its employees, looking for ways to operate its water system more efficiently and upgrading equipment used for water distribution. The water obtained through the Bingham Canyon Water Treatment Plant will be rigorously tested by Kennecott before it leaves the plant to ensure it meets all federal and state regulations. Once the water is delivered to Jordan Valley Water, the District will conduct additional tests and monitoring to assist in ensuring it meets all federal and state regulations for drinking water quality and aesthetics. The test results will be reported to the Department of Environmental Quality. The water will then be blended with Jordan Valley Water’s other water sources. The table below shows a recent laboratory analysis of water being treated by the Bingham Canyon Water Treatment Plant. The water quality in the table is also compared with the quality of Provo River water, which has commonly been treated and delivered to the cities of West Jordan, South Jordan, Herriman and Riverton. The table also shows drinking water standards, and how the water produced by the Bingham Canyon Water Treatment Plant compares with those standards. Note that all the drinking water standards are met, and the water quality is much better than drinking water standards in almost every case. E:\RPB_Water QualiŠd Assurance.doc Inorganic Water Quality of Deep Groundwater Treated at Bingham Canyon Water Treatment Plant, Compared with Other High Quality Water Sources Maximum Contaminant Levela Parameter Units Primaryb Secondaryc Groundwater treated at BCWTPd Provo River Water Treated at JVWTPe SE Salt Lake Valley Groundwater (Untreated)f Primary Inorganics Antimony mg/L 0.006 ND ND ND Arsenic mg/L 0.05 0.0006 0.0014 0.0010 Asbestos Mil fibers 7 ND ND Barium mg/L 2 ND 0.068 0.082 Beryllium mg/L 0.004 ND ND ND Cadmium mg/L 0.005 ND ND ND Chromium mg/L 0.1 ND ND ND Cyanide mg/L 0.2 ND 0.0 ND Fluoride mg/L 4.0 2 ND 0.3 0.3 Mercury mg/L 0.002 ND ND 0.0 Nitrate mg/L 10 0.3 0.29 1.50 Nitrite mg/L 1 ND 0.0 0.008 Selenium mg/L 0.05 0.0011 0.0007 0.0012 Sulfate mg/L 1000 g 250 132 52 36 Thallium mg/L 0.002 ND ND 0.00000 TDS mg/L 2000 h 500 250 265 258 Secondary Inorganics Aluminum mg/L 0.05 to 0.2 ND 0.12 0.02 Chloride mg/L 250 19 17 36 Color CU 15 0 4.7 4 Copper mg/L 1 ND ND 0.0 Iron mg/L 0.3 ND ND 0.01 Manganese mg/L 0.05 ND 0.0 0.00 Odor CU 3 0 1 0 pH Units 6.5-8.5 6.92 7.4 7.49 Silver mg/L 0.1 ND ND 0.0000 Zinc mg/L 5 0.01 0.0 0.00 Unregulated Inorganics Alkalinity - Bicarbonate mg/L 27 175 150 Ammonia mg/L ND E:\RPB_Water QualiŠd Assurance.doc Inorganic Water Quality of Deep Groundwater Treated at Bingham Canyon Water Treatment Plant, Compared with Other High Quality Water Sources Maximum Contaminant Levela Parameter Units Primaryb Secondaryc Groundwater treated at BCWTPd Provo River Water Treated at JVWTPe SE Salt Lake Valley Groundwater (Untreated)f Boron mg/L 0 0.01 Carbon Dioxide mg/L 115 116 Calcium mg/L 44 42 Chlorite mg/L ND Conductivity umhos/cm 461 413 403 Hardness mg/L 177 158 160 Hexavalent Chromium mg/L ND Langelier Index None -1.90 Methylene Blue Active mg/L 0 0.04 Molybdenun mg/L ND 0.0019 Orthophosphates mg/L ND 0.00 Phosphates mg/L 1.4 Phosphorus mg/L ND Surfactants mg/L ND Turbidity NTU 0.10 0.07 0.34 Unregulated Metals Bromide mg/L ND Copper mg/L ND Lead mg/L ND ND 0.0001 Magnesium mg/L 17.2 14 13.6 Nickel mg/L ND ND ND Potassium mg/L 0.6 2.3 3.1 Sodium mg/L 10.9 13 22 Silica mg/L 8.7 16.5 Strontium mg/L 0.33 0.33 Notes: (a) From R309-200 Utah Drinking Water Standards (Effective Dec. 9, 2002) (b) Enforceable standards, established for protection of human health. (c) Recommended but not enforceable standards, established for aesthetic water quality guidelines. (d) From a laboratory analysis on December ____2005. E:\RPB_Water QualiŠd Assurance.doc Inorganic Water Quality of Deep Groundwater Treated at Bingham Canyon Water Treatment Plant, Compared with Other High Quality Water Sources Maximum Contaminant Levela Parameter Units Primaryb Secondaryc Groundwater treated at BCWTPd Provo River Water Treated at JVWTPe SE Salt Lake Valley Groundwater (Untreated)f (e) Average of 2000-2004 analyses of surface water by Jordan Valley Water. (f) Average of 2000-2003 analyses of deep groundwater by Jordan Valley Water. (g) Comparison with Other Water Supplies Water quality for potable water sources is commonly characterized by the following key constituents: ƒ Total dissolved solids (TDS) ƒ Total hardness ƒ Alkalinity In addition, sulfate is an important parameter, being the elevated ion as a result of mining impacts. Water sources are commonly considered of very high quality when TDS concentrations are less than 300 milligrams per liter (mg/L), or parts per million (ppm), and with total hardness less than 200 mg/L. The following table shows these key water quality parameters for the following water supplies: ƒ Deep groundwater treated at the Bingham Canyon Water Treatment Plant ƒ Provo River water treated at the Jordan Valley Water Treatment Plant, which has historically been delivered to West Jordan, South Jordan, Herriman and Riverton, and which has been considered the benchmark for high quality water in Salt Lake Valley. ƒ Southeast South Lake Valley deep groundwater produced by Jordan Valley Water and considered a very high quality water supply. E:\RPB_Water QualiŠd Assurance.doc Comparison of Water Qualities Source TDS (mg/L) Total Hardness (mg/L) Alkalinity (as by carbonate; mg/L) Sulfate (mg/L) Groundwater treated at BCWTP a 250 177 27 132 Provo River water treated at JVWTP b 265 158 175 52 South East South Lake Valley deep groundwater c 258 160 160 36 Notes: (a) From a laboratory analysis on December ____, 2005 (b) Average of 2004 analyses of Provo River water by Jordan Valley Water at JVWTP and SERWTP. (c) Average of 2000-2004 analyses of deep groundwater by Jordan Valley Water. Monitoring & Assurance Kennecott will comply with Utah Drinking Water Standards for Public Water Supply in treating and producing water at the Bingham Canyon Water Treatment Plant. All required reporting to the Utah Division of Drinking Water will be performed by Kennecott. In addition Kennecott will continuously monitor the following water quality parameters to assure excellent water quality: ƒ pH ƒ conductivity ƒ temperature Upon receiving water from the Bingham Canyon Water Treatment Plant, Jordan Valley Water will also monitor the water quality periodically to assure its high quality and compliance with drinking water standards. Jordan Valley Water will also monitor to following water quality parameters continuously: ƒ pH ƒ conductivity ƒ temperature