1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 150 NUMBER OF UNCENSORED OBS.: 150 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 60763. 4080. 22300. 34900. 55800. 78838. 117600. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 4.8551E+01 + 1.3277E+00 LN(FLOW) + 1.1744E-01 SIN(DECTIME) + 1.7572E-01 COS(DECTIME) + 2.3973E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.089 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 28.28 ( 27 DF) PROBABILITY LEVEL = 0.397 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 4.8551E+01 + 1.3277E+00 LN(FLOW) + 1.1744E-01 SIN(DECTIME) + 1.7572E-01 COS(DECTIME) + 2.3973E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.089 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 4.5463E+01 + 1.3577E+00 LN(FLOW) + 1.0120E-01 SIN(DECTIME) + 2.0794E-01 COS(DECTIME) + 2.2256E-02 DECTIME 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 410. 710. 360. 310. 240. STD DEV LOAD (TON/DAY) 12. 30. 14. 15. 12. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 2. 3. 4. 4. 4. 5. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 27. 152. 284. 501. 916. 1227. 1876. 2786. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 410. 710. 360. 310. 240. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 2. 3. 4. 4. 4. 5. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 27. 152. 285. 501. 917. 1228. 1879. 2793. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 410. 710. 350. 320. 250. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 2. 2. 3. 4. 4. 4. 5. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 26. 152. 286. 504. 920. 1236. 1888. 2809. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 410. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Total Nitrate + Nitrite LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 174 NUMBER OF UNCENSORED OBS.: 166 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 64539. 43. 22300. 36300. 58750. 89100. 119500. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.7632E+02 + 5.0340E-02 LN(FLOW) + 7.0345E-02 LN(FLOW)**2 + 2.0823E-01 SIN(DECTIME) + 3.8176E-01 COS(DECTIME) + 9.0712E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.637 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 58.76 ( 31 DF) PROBABILITY LEVEL = 0.002 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.7225E+02 + 8.6905E-02 LN(FLOW) + 6.8144E-02 LN(FLOW)**2 + 2.0134E-01 SIN(DECTIME) + 3.7840E-01 COS(DECTIME) + 8.8600E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.613 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 1.6875E+02 + 9.6287E-01 LN(FLOW) + 2.0559E-02 LN(FLOW)**2 + 2.5340E-01 SIN(DECTIME) + 3.3262E-01 COS(DECTIME) + 8.4924E-02 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS TWICE THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 300. 560. 240. 200. 180. STD DEV LOAD (TON/DAY) 25. 61. 25. 26. 24. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 1. 2. 3. 4. 6. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 6. 65. 146. 357. 716. 1072. 2273. 3692. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 280. 530. 230. 200. 170. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 1. 2. 3. 4. 5. 7. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 6. 64. 142. 342. 682. 1017. 2125. 3486. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 280. 520. 220. 190. 180. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 1. 2. 3. 4. 5. 6. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 7. 71. 151. 347. 648. 975. 1850. 2690. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 270. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Dissolved Ammonia LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 120 NUMBER OF UNCENSORED OBS.: 115 CALIBRATION DATA PERIOD OF RECORD: 1979 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 71432. 4080. 31400. 45625. 66300. 96450. 122800. 152000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.1914E+02 + 1.2812E+00 LN(FLOW) + 1.9299E-01 SIN(DECTIME) + 4.3314E-01 COS(DECTIME) - 6.2013E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.612 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 21.02 ( 21 DF) PROBABILITY LEVEL = 0.458 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.2501E+02 + 1.3138E+00 LN(FLOW) + 1.8968E-01 SIN(DECTIME) + 4.2792E-01 COS(DECTIME) - 6.5141E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.604 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.2783E+02 + 1.3545E+00 LN(FLOW) + 1.3011E-01 SIN(DECTIME) + 5.5518E-01 COS(DECTIME) - 6.6700E-02 DECTIME 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 16. 28. 10. 12. 12. STD DEV LOAD (TON/DAY) 2. 4. 1. 2. 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 1. 6. 11. 19. 33. 42. 74. 138. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 16. 29. 10. 12. 12. 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. 6. 11. 19. 33. 43. 78. 155. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 16. 28. 10. 14. 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. 0. 0. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 7. 12. 21. 35. 45. 78. 153. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 12. - 13. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 154 NUMBER OF UNCENSORED OBS.: 154 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 59843. 43. 21000. 34000. 55550. 75263. 116000. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 3.4785E+01 + 4.0827E-01 LN(FLOW) + 3.9380E-02 LN(FLOW)**2 - 2.6281E-01 SIN(DECTIME) - 1.9594E-01 COS(DECTIME) - 1.6750E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.196 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 59.24 ( 27 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 3.4785E+01 + 4.0827E-01 LN(FLOW) + 3.9380E-02 LN(FLOW)**2 - 2.6281E-01 SIN(DECTIME) - 1.9594E-01 COS(DECTIME) - 1.6750E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.196 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 3.4236E+01 + 2.9139E-01 LN(FLOW) + 4.3888E-02 LN(FLOW)**2 - 3.4711E-01 SIN(DECTIME) - 1.6516E-01 COS(DECTIME) - 1.6098E-02 DECTIME 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 25. 34. 31. 24. 10. STD DEV LOAD (TON/DAY) 1. 2. 2. 2. 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. 33. 52. 67. 98. 180. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 25. 34. 30. 24. 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 3. 10. 18. 33. 52. 67. 98. 180. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 25. 31. 30. 26. 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 3. 10. 19. 33. 51. 63. 95. 177. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 25. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Soluble Reactive Phosphorus (measured as Dissolved Orthophosphate) LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 98 NUMBER OF UNCENSORED OBS.: 97 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 75687. 4080. 33070. 48525. 72200. 101250. 123100. 148000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.3775E+00 + 1.1958E+00 LN(FLOW) - 4.6790E-01 SIN(DECTIME) - 1.1916E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.205 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 13.48 ( 16 DF) PROBABILITY LEVEL = 0.638 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.3166E+00 + 1.1905E+00 LN(FLOW) - 4.6568E-01 SIN(DECTIME) - 1.1570E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.203 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 3.0169E+00 + 1.1613E+00 LN(FLOW) - 5.0345E-01 SIN(DECTIME) - 2.6029E-01 COS(DECTIME) 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 9. 10. 11. 11. 4. STD DEV LOAD (TON/DAY) 0. 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 1. 4. 7. 12. 17. 21. 34. 65. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 9. 10. 11. 11. 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. 4. 7. 12. 17. 21. 34. 65. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 9. 9. 12. 11. 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. 4. 7. 12. 18. 21. 35. 64. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 8.9 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Total Suspended Sediment LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 136 NUMBER OF UNCENSORED OBS.: 136 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1992 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 60076. 43. 23480. 38050. 57125. 73325. 104980. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 9.0454E+01 - 1.4028E+00 LN(FLOW) + 1.5937E-01 LN(FLOW)**2 - 2.6085E-01 SIN(DECTIME) - 6.0666E-01 COS(DECTIME) - 3.9169E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.414 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 21.98 ( 24 DF) PROBABILITY LEVEL = 0.580 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 9.0454E+01 - 1.4028E+00 LN(FLOW) + 1.5937E-01 LN(FLOW)**2 - 2.6085E-01 SIN(DECTIME) - 6.0666E-01 COS(DECTIME) - 3.9169E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.414 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 9.1237E+01 - 1.3041E+00 LN(FLOW) + 1.5372E-01 LN(FLOW)**2 - 2.5533E-01 SIN(DECTIME) - 5.1650E-01 COS(DECTIME) - 3.9757E-02 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS TWICE THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. WARNING: MAXIMUM PREDICTED CONCENTRATION EXCEEDS 100000 UG/L 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 14000. 24000. 20000. 8600. 1900. STD DEV LOAD (TON/DAY) 1300. 2900. 2100. 1100. 200. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 7. 22. 46. 83. 143. 176. 276. 511. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 205. 1764. 5071. 14557. 36391. 55619. 107128. 307852. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 14000. 24000. 20000. 8700. 1900. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 7. 22. 46. 83. 143. 177. 278. 524. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 208. 1774. 5097. 14579. 36464. 56070. 109105. 313809. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 13000. 23000. 18000. 8800. 2100. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 8. 24. 46. 81. 135. 167. 258. 487. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 236. 1879. 5157. 14185. 34442. 53170. 101388. 280249. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 12000. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Dissolved Chloride LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 101 NUMBER OF UNCENSORED OBS.: 101 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 53512. 43. 17040. 27350. 46300. 71600. 102800. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.1704E+01 + 1.2080E+00 LN(FLOW) - 1.3998E-02 LN(FLOW)**2 + 4.0514E-02 SIN(DECTIME) + 9.1903E-02 COS(DECTIME) + 1.7788E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.040 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 26.53 ( 17 DF) PROBABILITY LEVEL = 0.065 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.1704E+01 + 1.2080E+00 LN(FLOW) - 1.3998E-02 LN(FLOW)**2 + 4.0514E-02 SIN(DECTIME) + 9.1903E-02 COS(DECTIME) + 1.7788E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.040 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 3.2032E+01 + 1.2604E+00 LN(FLOW) - 1.7705E-02 LN(FLOW)**2 + 5.6973E-02 SIN(DECTIME) + 8.7720E-02 COS(DECTIME) + 1.7874E-02 DECTIME 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2600. 1700. 1600. 1300. STD DEV LOAD (TON/DAY) 67. 120. 76. 71. 62. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 9. 12. 13. 14. 15. 16. 17. 17. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 302. 988. 1509. 2228. 3301. 3986. 5321. 7225. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2600. 1700. 1600. 1300. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 9. 12. 13. 14. 15. 16. 17. 17. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 302. 989. 1510. 2230. 3307. 3991. 5338. 7251. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1800. 2600. 1700. 1500. 1300. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 9. 12. 13. 14. 15. 16. 17. 18. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 309. 998. 1514. 2221. 3275. 3927. 5193. 6899. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 1600. 1 STATION NAME: Mississippi River at Clinton, IA STATION NUMBER: 05420500 DRAINAGE AREA: 85600.0 SQUARE MILES CONSTITUENT: Dissolved Silica (The values represented here are for SiO2. Values for loads and concentrations have been converted to represent elemental Si. Si = 0.46744 * SiO2 ) LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 94 NUMBER OF UNCENSORED OBS.: 92 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1993 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52828. 43. 16550. 26600. 45550. 71400. 102500. 156000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 52643. 9600. 19500. 26900. 43000. 67500. 102000. 238000. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.5392E+02 - 4.0197E-01 LN(FLOW) + 9.1290E-02 LN(FLOW)**2 + 2.3976E-02 SIN(DECTIME) + 5.0911E-01 COS(DECTIME) + 8.1693E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.377 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 48.51 ( 15 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.5393E+02 - 3.6764E-01 LN(FLOW) + 8.8933E-02 LN(FLOW)**2 + 2.7824E-02 SIN(DECTIME) + 5.0335E-01 COS(DECTIME) + 8.1652E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.352 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 1.5178E+02 + 6.4574E-01 LN(FLOW) + 2.2047E-02 LN(FLOW)**2 + 1.2336E-01 SIN(DECTIME) + 3.3239E-01 COS(DECTIME) + 7.9155E-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: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS TWICE THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River at Clinton, IA (CONTINUED) STATION NUMBER: 05420500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2900. 4800. 2200. 2500. 2000. STD DEV LOAD (TON/DAY) 920. 1700. 810. 870. 720. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 9. 14. 22. 33. 39. 50. 60. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 78. 766. 1574. 3454. 6933. 9728. 18460. 31382. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2400. 3900. 1800. 2100. 1600. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 7. 11. 18. 28. 34. 43. 51. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 63. 616. 1284. 2862. 5674. 8237. 15717. 27497. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 1900. 3000. 1500. 1600. 1500. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 4. 7. 11. 17. 22. 27. 31. 34. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 107. 695. 1302. 2498. 4137. 5808. 9572. 13032. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 1100.