1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 118 NUMBER OF UNCENSORED OBS.: 118 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 27072. 4497. 8431. 11404. 22324. 36955. 55824. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.2644E+02 + 1.2335E+00 LN(FLOW) + 2.1287E-01 SIN(DECTIME) + 1.6882E-01 COS(DECTIME) - 6.2913E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.109 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 55.68 ( 20 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.2644E+02 + 1.2335E+00 LN(FLOW) + 2.1287E-01 SIN(DECTIME) + 1.6882E-01 COS(DECTIME) - 6.2913E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.109 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.2676E+02 + 1.2464E+00 LN(FLOW) + 2.6321E-01 SIN(DECTIME) + 1.3251E-01 COS(DECTIME) - 6.3161E-02 DECTIME 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 550. 880. 410. 280. 590. STD DEV LOAD (TON/DAY) 26. 51. 23. 19. 39. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 5. 7. 8. 9. 10. 10. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 36. 143. 374. 838. 1267. 1607. 2031. 2342. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 550. 890. 410. 280. 590. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 6. 7. 8. 9. 10. 11. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 36. 144. 377. 844. 1277. 1619. 2048. 2359. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 570. 940. 430. 270. 590. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 6. 7. 9. 10. 10. 11. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 34. 142. 391. 855. 1328. 1697. 2150. 2556. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 480. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Total Nitrate + Nitrite LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 123 NUMBER OF UNCENSORED OBS.: 122 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 28350. 4497. 8501. 11404. 23130. 39913. 61861. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 8.8256E-01 + 1.1999E+00 LN(FLOW) + 2.6971E-01 SIN(DECTIME) + 2.3056E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.420 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 101.07 ( 21 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 8.7325E-01 + 1.2008E+00 LN(FLOW) + 2.6934E-01 SIN(DECTIME) + 2.2961E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.417 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 9.6240E-03 + 1.2944E+00 LN(FLOW) + 2.4167E-01 SIN(DECTIME) + 1.6640E-01 COS(DECTIME) 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 410. 660. 290. 200. 450. STD DEV LOAD (TON/DAY) 34. 71. 31. 24. 51. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 4. 5. 6. 7. 7. 8. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 23. 115. 286. 605. 902. 1160. 1553. 1932. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 370. 600. 270. 180. 410. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 4. 5. 6. 6. 6. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 21. 104. 260. 551. 821. 1056. 1419. 1763. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 380. 640. 300. 190. 390. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 4. 5. 6. 6. 7. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 18. 100. 260. 572. 887. 1131. 1622. 1889. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 350. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Dissolved Ammonia LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 121 NUMBER OF UNCENSORED OBS.: 114 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 27902. 4497. 8473. 11404. 22485. 38085. 60505. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.8041E+00 + 1.1845E+00 LN(FLOW) + 6.1601E-01 SIN(DECTIME) + 8.4012E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 1.556 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 70.48 ( 21 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.7531E+00 + 1.1811E+00 LN(FLOW) + 6.1061E-01 SIN(DECTIME) + 8.1574E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 1.475 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 2.6147E+00 + 1.1857E+00 LN(FLOW) + 5.1081E-01 SIN(DECTIME) + 5.7811E-01 COS(DECTIME) 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 19. 30. 6. 7. 31. STD DEV LOAD (TON/DAY) 4. 7. 1. 2. 7. 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. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 3. 11. 27. 48. 61. 96. 124. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 14. 24. 5. 5. 23. 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 0. 3. 9. 20. 37. 47. 74. 96. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 13. 21. 6. 5. 18. 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. 8. 18. 31. 38. 56. 76. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 11. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 110 NUMBER OF UNCENSORED OBS.: 110 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 27186. 4497. 8319. 11484. 22808. 36094. 55147. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.2998E+00 + 9.0278E-01 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 0.131 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 20.74 ( 19 DF) PROBABILITY LEVEL = 0.351 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.2998E+00 + 9.0278E-01 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 0.131 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.0007E+00 + 9.3127E-01 LN(FLOW) 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 22. 29. 21. 15. 20. STD DEV LOAD (TON/DAY) 1. 2. 1. 1. 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 3. 10. 18. 31. 42. 48. 60. 73. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 22. 29. 21. 15. 20. 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 3. 10. 18. 31. 42. 48. 60. 73. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 22. 30. 22. 15. 21. 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 3. 10. 18. 31. 43. 50. 62. 77. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 22. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Soluble Reactive Phosphorus LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 121 NUMBER OF UNCENSORED OBS.: 120 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 28118. 4497. 8473. 11404. 22485. 39107. 62076. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.5265E+02 + 9.6181E-01 LN(FLOW) - 1.5518E-01 SIN(DECTIME) + 2.1769E-01 COS(DECTIME) - 7.6680E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.566 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 67.26 ( 21 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.5140E+02 + 9.6080E-01 LN(FLOW) - 1.5300E-01 SIN(DECTIME) + 2.1678E-01 COS(DECTIME) - 7.6047E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.561 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.5176E+02 + 9.9710E-01 LN(FLOW) - 6.7909E-02 SIN(DECTIME) + 1.2682E-01 COS(DECTIME) - 7.6323E-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: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 10. 12. 8. 9. 12. STD DEV LOAD (TON/DAY) 1. 2. 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. 0. 0. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 4. 8. 15. 20. 23. 29. 34. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 9. 11. 8. 8. 11. 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. 4. 7. 14. 18. 21. 27. 31. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 10. 12. 8. 7. 10. 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. 4. 7. 14. 20. 23. 27. 30. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 8.7 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Total Suspended Sediment LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 121 NUMBER OF UNCENSORED OBS.: 121 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 28003. 4497. 8607. 11458. 23130. 37493. 60505. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.7535E+00 + 1.3074E+00 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 0.405 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 26.47 ( 21 DF) PROBABILITY LEVEL = 0.189 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.7535E+00 + 1.3074E+00 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 0.405 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 2.1089E+00 + 1.3664E+00 LN(FLOW) WARNING: MAXIMUM PREDICTED CONCENTRATION EXCEEDS 100000 UG/L 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7700. 11000. 7500. 4700. 6800. STD DEV LOAD (TON/DAY) 640. 1100. 630. 340. 510. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 45. 65. 80. 95. 106. 110. 119. 127. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 473. 2245. 5349. 11407. 17761. 21590. 29704. 39812. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7800. 12000. 7600. 4700. 6800. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 46. 66. 80. 96. 107. 112. 121. 129. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 481. 2264. 5390. 11512. 17960. 21857. 30135. 40485. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 8100. 12000. 7900. 4800. 7000. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 41. 63. 81. 100. 113. 120. 131. 142. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 434. 2189. 5418. 11974. 19060. 23402. 32737. 44570. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 7700. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Dissolved Chloride LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 121 NUMBER OF UNCENSORED OBS.: 121 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 28203. 4497. 8473. 11404. 23130. 39107. 62076. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.5049E+01 + 6.1684E-01 LN(FLOW) + 2.6890E-01 SIN(DECTIME) + 1.8216E-01 COS(DECTIME) + 2.2326E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.052 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 24.78 ( 21 DF) PROBABILITY LEVEL = 0.257 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.5049E+01 + 6.1684E-01 LN(FLOW) + 2.6890E-01 SIN(DECTIME) + 1.8216E-01 COS(DECTIME) + 2.2326E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.052 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 3.5332E+01 + 5.8360E-01 LN(FLOW) + 2.8461E-01 SIN(DECTIME) + 1.5528E-01 COS(DECTIME) + 2.2635E-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. WARNING: MAXIMUM PREDICTED CONCENTRATION EXCEEDS 100000 UG/L 1 STATION: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3900. 5700. 3000. 2300. 4500. STD DEV LOAD (TON/DAY) 100. 210. 100. 81. 180. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 23. 43. 53. 64. 77. 89. 105. 115. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 792. 2112. 3567. 5218. 6874. 7822. 9074. 11491. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3900. 5700. 3000. 2300. 4500. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 23. 43. 53. 64. 77. 89. 105. 115. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 792. 2108. 3562. 5212. 6862. 7810. 9062. 11481. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3900. 5600. 3000. 2300. 4300. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 22. 42. 53. 64. 77. 89. 107. 118. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 824. 2127. 3554. 5082. 6707. 7587. 8830. 10958. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 3900. 1 STATION NAME: Illinois River near confluence with Mississippi River STATION NUMBER: I007.0W DRAINAGE AREA: 28772.0 SQUARE MILES CONSTITUENT: Dissolved Silicon LOAD ESTIMATES FOR 19910101 TO 19970930 TOTAL NUMBER OF OBS.: 120 NUMBER OF UNCENSORED OBS.: 118 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 28214. 4497. 8459. 11404. 22808. 39510. 62183. 88110. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 30702. 3916. 8994. 12802. 24852. 44405. 62398. 116190. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.8974E+02 + 6.8085E+00 LN(FLOW) - 2.4920E-01 LN(FLOW)**2 - 2.1531E-01 SIN(DECTIME) + 5.3127E-01 COS(DECTIME) + 7.9731E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.712 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 65.29 ( 21 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.8913E+02 + 6.8210E+00 LN(FLOW) - 2.4994E-01 LN(FLOW)**2 - 2.1666E-01 SIN(DECTIME) + 5.2786E-01 COS(DECTIME) + 7.9403E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.701 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 1.8903E+02 + 6.8737E+00 LN(FLOW) - 2.6112E-01 LN(FLOW)**2 - 2.9144E-01 SIN(DECTIME) + 2.8097E-01 COS(DECTIME) + 7.9731E-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: Illinois River near confluence with Mississippi River (CONTINUED) STATION NUMBER: I007.0W LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 330. 410. 220. 260. 430. STD DEV LOAD (TON/DAY) 42. 67. 35. 46. 71. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 2. 3. 4. 6. 7. 8. 8. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 65. 192. 512. 818. 1025. 1435. 1870. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 290. 360. 200. 230. 380. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 2. 3. 4. 6. 6. 7. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 57. 169. 448. 722. 910. 1266. 1688. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 240. 290. 210. 200. 260. 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. 5. 5. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 4. 61. 154. 366. 538. 689. 942. 1034. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 240.