1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 138 NUMBER OF UNCENSORED OBS.: 138 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47503. 10800. 20720. 28882. 40800. 63175. 78710. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.7745E+02 + 1.1763E+00 LN(FLOW) + 1.1040E-01 SIN(DECTIME) + 1.0961E-01 COS(DECTIME) - 1.3866E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.082 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 38.77 ( 24 DF) PROBABILITY LEVEL = 0.029 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.7745E+02 + 1.1763E+00 LN(FLOW) + 1.1040E-01 SIN(DECTIME) + 1.0961E-01 COS(DECTIME) - 1.3866E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.082 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 2.7754E+02 + 1.1934E+00 LN(FLOW) + 1.3615E-01 SIN(DECTIME) + 5.7859E-02 COS(DECTIME) - 1.3879E-01 DECTIME 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 420. 690. 430. 310. 230. STD DEV LOAD (TON/DAY) 14. 35. 17. 13. 11. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 2. 3. 4. 5. 5. 6. 6. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 61. 196. 311. 557. 880. 1080. 1401. 1504. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 420. 690. 430. 310. 230. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 2. 3. 4. 5. 5. 6. 6. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 61. 196. 310. 556. 879. 1078. 1399. 1503. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 420. 730. 450. 300. 220. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 3. 4. 5. 5. 6. 6. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 56. 190. 307. 572. 921. 1128. 1482. 1555. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 380. 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Total Nitrate + Nitrite LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 144 NUMBER OF UNCENSORED OBS.: 143 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47689. 10800. 20800. 28507. 40000. 62375. 78900. 138259. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.9885E+02 + 9.9150E+00 LN(FLOW) - 3.8946E-01 LN(FLOW)**2 + 3.0893E-01 SIN(DECTIME) + 4.2644E-01 COS(DECTIME) - 1.7406E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.354 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 49.77 ( 25 DF) PROBABILITY LEVEL = 0.002 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.9853E+02 + 9.8400E+00 LN(FLOW) - 3.8601E-01 LN(FLOW)**2 + 3.0772E-01 SIN(DECTIME) + 4.2607E-01 COS(DECTIME) - 1.7370E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.351 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 2.9847E+02 + 9.8692E+00 LN(FLOW) - 3.9218E-01 LN(FLOW)**2 + 2.5905E-01 SIN(DECTIME) + 3.5975E-01 COS(DECTIME) - 1.7343E-01 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 360. 710. 280. 240. 200. STD DEV LOAD (TON/DAY) 27. 74. 24. 23. 20. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 2. 2. 3. 5. 5. 7. 8. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 17. 131. 232. 483. 829. 1071. 1506. 1990. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 340. 680. 270. 230. 190. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 2. 2. 3. 4. 5. 7. 8. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 17. 126. 223. 463. 798. 1030. 1448. 1921. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 330. 610. 270. 230. 180. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 2. 2. 3. 4. 5. 6. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 20. 130. 223. 447. 708. 949. 1254. 1614. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 260. 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Dissolved Ammonia LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 144 NUMBER OF UNCENSORED OBS.: 131 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47689. 10800. 20800. 28507. 40000. 62375. 78900. 138259. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.1605E+02 + 1.3020E+00 LN(FLOW) + 3.7753E-01 SIN(DECTIME) + 3.5247E-01 COS(DECTIME) + 1.5596E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 2.499 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 80.12 ( 25 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.7744E+02 + 1.2930E+00 LN(FLOW) + 3.8799E-01 SIN(DECTIME) + 3.6315E-01 COS(DECTIME) + 1.3669E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 2.306 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 2.7512E+02 + 1.4401E+00 LN(FLOW) + 5.4068E-01 SIN(DECTIME) + 4.2513E-01 COS(DECTIME) + 1.3496E-01 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 above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 15. 30. 12. 10. 10. STD DEV LOAD (TON/DAY) 3. 9. 3. 3. 3. 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 1. 7. 11. 19. 32. 42. 77. 112. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 12. 24. 9. 7. 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 1. 5. 8. 15. 24. 32. 58. 86. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 14. 31. 9. 7. 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 1. 5. 9. 17. 31. 44. 81. 124. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 9.2 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 131 NUMBER OF UNCENSORED OBS.: 131 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 48561. 10800. 21040. 29300. 41500. 63800. 78780. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.4268E+02 + 1.2284E+00 LN(FLOW) - 2.2778E-01 SIN(DECTIME) - 2.7904E-01 COS(DECTIME) - 7.2982E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.087 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 32.91 ( 23 DF) PROBABILITY LEVEL = 0.083 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.4268E+02 + 1.2284E+00 LN(FLOW) - 2.2778E-01 SIN(DECTIME) - 2.7904E-01 COS(DECTIME) - 7.2982E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.087 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.4299E+02 + 1.2454E+00 LN(FLOW) - 2.7072E-01 SIN(DECTIME) - 2.8061E-01 COS(DECTIME) - 7.3231E-02 DECTIME 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 18. 23. 26. 15. 6. 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. 7. 15. 24. 36. 41. 77. 85. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 18. 24. 26. 15. 6. 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. 7. 15. 24. 36. 41. 77. 85. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 18. 23. 26. 16. 6. 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. 7. 15. 24. 36. 41. 79. 87. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 18. 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Soluble Reactive Phosphorus LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 142 NUMBER OF UNCENSORED OBS.: 133 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47008. 10800. 20800. 28375. 39900. 62325. 78770. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.3835E+02 + 1.6137E+00 LN(FLOW) - 4.9034E-01 SIN(DECTIME) + 2.6244E-01 COS(DECTIME) - 2.7397E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.289 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 75.05 ( 25 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.1206E+02 + 1.5865E+00 LN(FLOW) - 4.7784E-01 SIN(DECTIME) + 2.4145E-01 COS(DECTIME) - 2.6063E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.217 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 5.1295E+02 + 1.4316E+00 LN(FLOW) - 2.4098E-01 SIN(DECTIME) + 8.0002E-02 COS(DECTIME) - 2.6013E-01 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 12. 13. 13. 14. 6. STD DEV LOAD (TON/DAY) 2. 3. 2. 3. 1. 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 1. 4. 8. 16. 27. 34. 53. 82. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 10. 11. 11. 12. 5. 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 1. 3. 6. 13. 23. 28. 44. 67. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 10. 13. 12. 9. 4. 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 1. 3. 7. 12. 23. 29. 41. 46. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 7.8 - 7.9 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Total Suspended Sediment LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 139 NUMBER OF UNCENSORED OBS.: 139 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46678. 10800. 20800. 28827. 40000. 62300. 78700. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.9477E+02 - 6.5865E+00 LN(FLOW) + 3.8390E-01 LN(FLOW)**2 - 4.7692E-01 SIN(DECTIME) - 1.1483E+00 COS(DECTIME) - 7.6825E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.264 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 23.61 ( 24 DF) PROBABILITY LEVEL = 0.484 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.9477E+02 - 6.5865E+00 LN(FLOW) + 3.8390E-01 LN(FLOW)**2 - 4.7692E-01 SIN(DECTIME) - 1.1483E+00 COS(DECTIME) - 7.6825E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.264 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.9499E+02 - 6.5895E+00 LN(FLOW) + 3.8790E-01 LN(FLOW)**2 - 4.9161E-01 SIN(DECTIME) - 1.0959E+00 COS(DECTIME) - 7.7146E-02 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. WARNING: MAXIMUM PREDICTED CONCENTRATION EXCEEDS 100000 UG/L 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 4400. 5000. 10000. 2300. 320. STD DEV LOAD (TON/DAY) 320. 470. 840. 180. 27. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 6. 19. 40. 57. 75. 157. 176. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 124. 478. 2288. 5882. 10711. 13947. 52066. 64692. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 4500. 5100. 10000. 2300. 320. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 6. 19. 41. 57. 76. 161. 181. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 128. 484. 2326. 5954. 10861. 14232. 53237. 66536. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 4600. 5200. 10000. 2400. 330. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 6. 19. 40. 56. 76. 169. 190. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 120. 489. 2326. 5870. 10986. 14641. 55867. 70209. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 4100. 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Dissolved Chloride LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 136 NUMBER OF UNCENSORED OBS.: 136 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47283. 10800. 20560. 28507. 40000. 62375. 78860. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 4.6553E+01 + 2.4463E+00 LN(FLOW) - 7.3324E-02 LN(FLOW)**2 + 3.1153E-02 SIN(DECTIME) + 6.4335E-02 COS(DECTIME) - 2.4709E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.038 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 30.70 ( 24 DF) PROBABILITY LEVEL = 0.163 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 4.6553E+01 + 2.4463E+00 LN(FLOW) - 7.3324E-02 LN(FLOW)**2 + 3.1153E-02 SIN(DECTIME) + 6.4335E-02 COS(DECTIME) - 2.4709E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.038 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 4.6630E+01 + 2.4557E+00 LN(FLOW) - 7.4232E-02 LN(FLOW)**2 + 4.2702E-02 SIN(DECTIME) + 5.1422E-02 COS(DECTIME) - 2.4736E-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 above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2500. 1900. 1500. 1100. STD DEV LOAD (TON/DAY) 34. 83. 48. 43. 35. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 17. 18. 18. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 456. 1132. 1561. 2328. 2876. 3318. 3978. 4141. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2500. 1900. 1500. 1100. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 17. 18. 18. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 458. 1131. 1560. 2327. 2874. 3317. 3983. 4148. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2500. 1900. 1500. 1100. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 17. 18. 18. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 456. 1127. 1556. 2343. 2899. 3340. 3987. 4152. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 1700. 1 STATION NAME: Mississippi River above Lock and Dam 8 STATION NUMBER: M679.5V DRAINAGE AREA: 64770.0 SQUARE MILES CONSTITUENT: Dissolved Silicon LOAD ESTIMATES FOR 19910101 TO 19971231 TOTAL NUMBER OF OBS.: 138 NUMBER OF UNCENSORED OBS.: 138 CALIBRATION DATA PERIOD OF RECORD: 1991 TO 1997 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 47325. 10800. 20720. 28720. 40000. 62650. 78820. 136518. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 46531. 10307. 19800. 26850. 40000. 62600. 79282. 138747. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.1902E+02 + 1.1324E+00 LN(FLOW) - 2.6527E-01 SIN(DECTIME) + 2.0432E-01 COS(DECTIME) - 5.8732E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.311 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 62.32 ( 24 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.1902E+02 + 1.1324E+00 LN(FLOW) - 2.6527E-01 SIN(DECTIME) + 2.0432E-01 COS(DECTIME) - 5.8732E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.311 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.1799E+02 + 1.0431E+00 LN(FLOW) - 1.2941E-01 SIN(DECTIME) + 1.4551E-01 COS(DECTIME) - 5.7682E-02 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River above Lock and Dam 8 (CONTINUED) STATION NUMBER: M679.5V LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 720. 860. 760. 810. 440. STD DEV LOAD (TON/DAY) 42. 83. 57. 68. 39. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 5. 6. 7. 8. 9. 9. 10. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 145. 413. 654. 943. 1251. 1454. 2019. 2263. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 680. 810. 720. 760. 410. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 5. 6. 7. 8. 9. 10. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 138. 390. 617. 891. 1183. 1381. 1910. 2158. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 680. 890. 720. 670. 420. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 4. 5. 5. 6. 7. 7. 8. 8. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 165. 400. 605. 885. 1165. 1349. 1798. 1956. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 680.