1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19810101 TO 19961231 TOTAL NUMBER OF OBS.: 116 NUMBER OF UNCENSORED OBS.: 116 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1994 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 43858. 7000. 13810. 21675. 37401. 60025. 85089. 180300. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 38107. 6300. 12883. 19500. 30739. 50195. 71500. 188700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.9004E+01 + 2.9689E+00 LN(FLOW) - 8.3848E-02 LN(FLOW)**2 + 1.4954E-01 SIN(DECTIME) - 1.1125E-02 COS(DECTIME) + 1.5171E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.088 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 14.69 ( 20 DF) PROBABILITY LEVEL = 0.794 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.9004E+01 + 2.9689E+00 LN(FLOW) - 8.3848E-02 LN(FLOW)**2 + 1.4954E-01 SIN(DECTIME) - 1.1125E-02 COS(DECTIME) + 1.5171E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.088 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 3.8951E+01 + 2.9605E+00 LN(FLOW) - 8.2995E-02 LN(FLOW)**2 + 1.4626E-01 SIN(DECTIME) + 3.7392E-02 COS(DECTIME) + 1.5137E-02 DECTIME NOTE: AIKAIKE INFORMATION CRITERION AND SCHWARZ POSTERIOR PROBABILITY CRITERIA DID NOT SELECT SAME BEST FIT MODEL. MODEL SELECTED ON BASIS OF AIKAIKE INFORMATION CRITERION. 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 280. 500. 290. 210. 140. STD DEV LOAD (TON/DAY) 9. 23. 12. 12. 8. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 2. 3. 3. 3. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 22. 116. 201. 372. 613. 786. 1140. 1620. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 280. 500. 290. 210. 140. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 2. 3. 3. 3. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 22. 116. 201. 372. 613. 786. 1142. 1634. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 280. 500. 280. 210. 140. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 3. 3. 3. 3. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 22. 116. 206. 370. 615. 787. 1148. 1606. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 290. 1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Nitrate + Nitrite LOAD ESTIMATES FOR 19810101 TO 19961231 TOTAL NUMBER OF OBS.: 126 NUMBER OF UNCENSORED OBS.: 126 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1996 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 44425. 7000. 14180. 21675. 38000. 59725. 85089. 180300. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 38107. 6300. 12883. 19500. 30739. 50195. 71500. 188700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 6.7700E+01 + 1.3565E+01 LN(FLOW) - 5.6352E-01 LN(FLOW)**2 + 1.6276E-01 SIN(DECTIME) + 4.0387E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.485 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 32.26 ( 22 DF) PROBABILITY LEVEL = 0.073 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 6.7700E+01 + 1.3565E+01 LN(FLOW) - 5.6352E-01 LN(FLOW)**2 + 1.6276E-01 SIN(DECTIME) + 4.0387E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.485 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 6.7817E+01 + 1.3583E+01 LN(FLOW) - 5.6451E-01 LN(FLOW)**2 + 1.3429E-01 SIN(DECTIME) + 3.6235E-01 COS(DECTIME) 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 190. 350. 140. 160. 110. STD DEV LOAD (TON/DAY) 16. 37. 14. 23. 15. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 2. 3. 3. 3. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 54. 141. 276. 455. 552. 694. 924. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 190. 350. 140. 160. 110. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 2. 3. 3. 3. 3. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 53. 139. 273. 450. 546. 691. 932. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 190. 340. 150. 160. 100. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 2. 2. 3. 3. 3. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 53. 138. 273. 445. 534. 667. 882. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 170. 1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Total Ammonia LOAD ESTIMATES FOR 19810101 TO 19961231 TOTAL NUMBER OF OBS.: 126 NUMBER OF UNCENSORED OBS.: 115 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1996 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 44425. 7000. 14180. 21675. 38000. 59725. 85089. 180300. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 38107. 6300. 12883. 19500. 30739. 50195. 71500. 188700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.0888E+02 + 8.5564E-01 LN(FLOW) + 4.4631E-01 SIN(DECTIME) + 4.8159E-01 COS(DECTIME) - 1.0460E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.508 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 29.95 ( 22 DF) PROBABILITY LEVEL = 0.120 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.9377E+02 + 8.7236E-01 LN(FLOW) + 4.3044E-01 SIN(DECTIME) + 4.7519E-01 COS(DECTIME) - 9.7075E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.479 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.9388E+02 + 8.9140E-01 LN(FLOW) + 4.6463E-01 SIN(DECTIME) + 4.6934E-01 COS(DECTIME) - 9.7237E-02 DECTIME 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 14. 26. 8. 9. 14. STD DEV LOAD (TON/DAY) 1. 3. 1. 1. 2. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 5. 10. 19. 30. 43. 67. 127. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 15. 27. 9. 10. 15. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 6. 10. 20. 31. 44. 70. 132. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 15. 28. 9. 10. 14. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 6. 10. 20. 32. 45. 73. 139. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 14. 1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19810101 TO 19961231 TOTAL NUMBER OF OBS.: 116 NUMBER OF UNCENSORED OBS.: 116 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1994 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 43858. 7000. 13810. 21675. 37401. 60025. 85089. 180300. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 38107. 6300. 12883. 19500. 30739. 50195. 71500. 188700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.7520E-01 + 1.0259E+00 LN(FLOW) - 1.2062E-01 SIN(DECTIME) - 2.2168E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.096 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 29.01 ( 20 DF) PROBABILITY LEVEL = 0.088 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.7520E-01 + 1.0259E+00 LN(FLOW) - 1.2062E-01 SIN(DECTIME) - 2.2168E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.096 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 4.0953E-02 + 9.8832E-01 LN(FLOW) - 1.1371E-01 SIN(DECTIME) - 2.9178E-01 COS(DECTIME) 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 19. 27. 24. 17. 8. STD DEV LOAD (TON/DAY) 1. 1. 1. 1. 0. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 0. 0. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 8. 15. 26. 37. 44. 68. 114. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 19. 27. 24. 17. 8. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 0. 0. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 9. 15. 26. 37. 44. 68. 115. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 19. 26. 24. 16. 8. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 0. 0. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 8. 14. 26. 37. 44. 66. 114. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 19. 1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Total Suspended Solids LOAD ESTIMATES FOR 19810101 TO 19961231 TOTAL NUMBER OF OBS.: 115 NUMBER OF UNCENSORED OBS.: 115 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1994 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 44037. 7000. 13780. 21600. 37800. 60400. 85119. 180300. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 38107. 6300. 12883. 19500. 30739. 50195. 71500. 188700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 6.4351E-01 + 1.4771E+00 LN(FLOW) - 2.4955E-01 SIN(DECTIME) - 7.9725E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.260 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 23.23 ( 20 DF) PROBABILITY LEVEL = 0.278 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 6.4351E-01 + 1.4771E+00 LN(FLOW) - 2.4955E-01 SIN(DECTIME) - 7.9725E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.260 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 2.6625E-01 + 1.4387E+00 LN(FLOW) - 2.6258E-01 SIN(DECTIME) - 7.4379E-01 COS(DECTIME) 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2600. 3700. 4500. 1700. 380. STD DEV LOAD (TON/DAY) 160. 300. 340. 180. 38. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 8. 17. 29. 38. 44. 56. 78. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 62. 470. 1330. 3527. 6464. 8183. 15794. 39684. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2600. 3800. 4500. 1700. 380. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 8. 17. 30. 38. 44. 56. 79. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 63. 474. 1339. 3551. 6512. 8242. 15916. 40153. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2500. 3600. 4300. 1800. 410. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 4. 8. 17. 29. 36. 42. 52. 71. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 71. 505. 1363. 3467. 6198. 7783. 15000. 36207. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 2700. 1 STATION NAME: Mississippi River at Lock & Dam 6 STATION NUMBER: UM-714 DRAINAGE AREA: 60030.0 SQUARE MILES CONSTITUENT: Total Chloride LOAD ESTIMATES FOR 19620101 TO 19741231 TOTAL NUMBER OF OBS.: 82 NUMBER OF UNCENSORED OBS.: 82 CALIBRATION DATA PERIOD OF RECORD: 1962 TO 1974 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 31698. 7100. 11060. 15650. 22950. 41875. 62080. 116000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 31724. 4500. 11300. 14825. 22500. 41800. 61000. 267000. WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0 MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.2307E+02 + 6.1185E-01 LN(FLOW) + 6.6416E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.149 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 19.09 ( 13 DF) PROBABILITY LEVEL = 0.120 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.2307E+02 + 6.1185E-01 LN(FLOW) + 6.6416E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.149 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 1.2285E+02 + 6.4805E-01 LN(FLOW) + 6.6131E-02 DECTIME 1 STATION: Mississippi River at Lock & Dam 6 (CONTINUED) STATION NUMBER: UM-714 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 640. 890. 650. 570. 470. STD DEV LOAD (TON/DAY) 32. 64. 31. 25. 23. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 7. 9. 11. 13. 14. 16. 21. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 187. 384. 563. 811. 1126. 1330. 1735. 2209. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 640. 890. 640. 570. 460. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 7. 8. 11. 12. 14. 16. 21. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 188. 382. 561. 809. 1123. 1326. 1733. 2212. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 650. 910. 650. 570. 460. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 7. 8. 11. 12. 14. 16. 20. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 179. 376. 558. 818. 1159. 1372. 1831. 2380. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 720.