1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 129 NUMBER OF UNCENSORED OBS.: 129 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68671. 21709. 32255. 40264. 53171. 91956. 115402. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 8.1757E+01 + 5.7762E+00 LN(FLOW) - 2.0378E-01 LN(FLOW)**2 + 1.3891E-01 SIN(DECTIME) + 1.1309E-01 COS(DECTIME) - 5.3669E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.083 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 39.05 ( 22 DF) PROBABILITY LEVEL = 0.014 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 8.1757E+01 + 5.7762E+00 LN(FLOW) - 2.0378E-01 LN(FLOW)**2 + 1.3891E-01 SIN(DECTIME) + 1.1309E-01 COS(DECTIME) - 5.3669E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.083 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 7.6081E+01 + 3.9940E+00 LN(FLOW) - 1.2206E-01 LN(FLOW)**2 + 1.0766E-01 SIN(DECTIME) + 1.0668E-01 COS(DECTIME) - 4.5961E-02 DECTIME 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 460. 750. 460. 310. 270. STD DEV LOAD (TON/DAY) 14. 35. 20. 14. 12. 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. 3. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 69. 244. 333. 631. 915. 1157. 1515. 1663. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 460. 750. 460. 310. 270. 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. 3. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 69. 244. 332. 630. 914. 1158. 1519. 1676. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 460. 750. 480. 310. 260. 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. 3. 3. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 74. 240. 324. 613. 916. 1189. 1679. 1969. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 450. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Total Nitrate + Nitrite LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 132 NUMBER OF UNCENSORED OBS.: 131 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68776. 21709. 32524. 40707. 52755. 92378. 115926. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 8.2090E+01 + 1.5471E+01 LN(FLOW) - 6.1990E-01 LN(FLOW)**2 + 2.4623E-01 SIN(DECTIME) + 4.4131E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.466 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 55.44 ( 23 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 8.1072E+01 + 1.5291E+01 LN(FLOW) - 6.1194E-01 LN(FLOW)**2 + 2.4523E-01 SIN(DECTIME) + 4.4033E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.463 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 7.7789E+01 + 1.5100E+01 LN(FLOW) - 6.2091E-01 LN(FLOW)**2 + 1.7584E-01 SIN(DECTIME) + 2.6266E-01 COS(DECTIME) 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 350. 660. 270. 220. 220. STD DEV LOAD (TON/DAY) 28. 73. 28. 26. 23. 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 17. 153. 249. 509. 766. 941. 1162. 1279. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 340. 630. 260. 210. 210. 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 17. 146. 236. 483. 725. 893. 1118. 1260. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 300. 490. 260. 210. 200. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 2. 2. 2. 3. 3. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 28. 165. 237. 432. 572. 653. 723. 750. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 300. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Dissolved Ammonia LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 132 NUMBER OF UNCENSORED OBS.: 129 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68776. 21709. 32524. 40707. 52755. 92378. 115926. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 6.0271E+02 + 1.3386E+00 LN(FLOW) + 2.9971E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.903 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 44.72 ( 23 DF) PROBABILITY LEVEL = 0.004 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 5.9606E+02 + 1.3300E+00 LN(FLOW) + 2.9642E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.884 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 5.9582E+02 + 1.3545E+00 LN(FLOW) + 2.9618E-01 DECTIME 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 27. 45. 30. 18. 14. STD DEV LOAD (TON/DAY) 3. 7. 4. 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 3. 12. 20. 34. 50. 73. 143. 186. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 25. 42. 28. 16. 13. 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. 11. 19. 32. 47. 68. 135. 176. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 26. 43. 28. 16. 13. 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. 11. 19. 32. 47. 69. 138. 181. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 22. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 121 NUMBER OF UNCENSORED OBS.: 121 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 69274. 21709. 33335. 41123. 55244. 93990. 115003. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.2146E+02 + 1.1199E+00 LN(FLOW) - 4.8684E-02 SIN(DECTIME) - 2.9439E-01 COS(DECTIME) - 1.1179E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.215 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 45.10 ( 21 DF) PROBABILITY LEVEL = 0.002 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.2146E+02 + 1.1199E+00 LN(FLOW) - 4.8684E-02 SIN(DECTIME) - 2.9439E-01 COS(DECTIME) - 1.1179E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.215 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 2.2077E+02 + 1.1765E+00 LN(FLOW) - 6.2358E-02 SIN(DECTIME) - 3.1315E-01 COS(DECTIME) - 1.1175E-01 DECTIME 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 32. 45. 45. 22. 12. STD DEV LOAD (TON/DAY) 2. 3. 3. 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 4. 13. 23. 40. 65. 86. 155. 210. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 32. 45. 45. 22. 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 4. 13. 23. 40. 65. 86. 156. 212. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 33. 47. 47. 22. 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 4. 13. 23. 41. 68. 92. 171. 235. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 30. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Soluble Reactive Phosphorus LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 94 NUMBER OF UNCENSORED OBS.: 84 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 64458. 23151. 33609. 40181. 51575. 85708. 108371. 225825. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.1735E+02 + 4.3339E+01 LN(FLOW) - 1.8874E+00 LN(FLOW)**2 - 6.7700E-01 SIN(DECTIME) + 2.7187E-01 COS(DECTIME) - 1.7855E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.510 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 56.54 ( 15 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.0814E+02 + 3.6543E+01 LN(FLOW) - 1.5801E+00 LN(FLOW)**2 - 6.5146E-01 SIN(DECTIME) + 2.4781E-01 COS(DECTIME) - 1.5511E-01 DECTIME ESTIMATED RESIDUAL VARIANCE = 1.378 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.0888E+02 + 3.6673E+01 LN(FLOW) - 1.6091E+00 LN(FLOW)**2 - 3.5207E-01 SIN(DECTIME) - 5.8841E-02 COS(DECTIME) - 1.5431E-01 DECTIME WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 10. 8. 11. 18. 6. STD DEV LOAD (TON/DAY) 2. 2. 3. 5. 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 0. 4. 7. 12. 23. 33. 42. 49. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 9. 7. 9. 14. 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 0. 4. 7. 11. 18. 26. 35. 38. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7.60 7.30 9.30 9.70 4.20 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 0. 4. 7. 10. 14. 16. 22. 23. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 7.0 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Total Suspended Sediment LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 129 NUMBER OF UNCENSORED OBS.: 129 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 67638. 21709. 32255. 40264. 52320. 88959. 113407. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.5355E+02 + 1.7961E+00 LN(FLOW) - 2.3131E-01 SIN(DECTIME) - 7.5440E-01 COS(DECTIME) - 7.9004E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.303 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 18.89 ( 22 DF) PROBABILITY LEVEL = 0.652 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 1.5355E+02 + 1.7961E+00 LN(FLOW) - 2.3131E-01 SIN(DECTIME) - 7.5440E-01 COS(DECTIME) - 7.9004E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.303 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 1.5402E+02 + 1.7669E+00 LN(FLOW) - 3.0029E-01 SIN(DECTIME) - 6.9731E-01 COS(DECTIME) - 7.9059E-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 at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7700. 10000. 15000. 3600. 950. STD DEV LOAD (TON/DAY) 620. 980. 1500. 320. 79. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 11. 23. 43. 59. 72. 144. 177. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 171. 1222. 3621. 9101. 18677. 26331. 76206. 122097. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7700. 10000. 15000. 3600. 950. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 11. 23. 43. 59. 72. 145. 178. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 171. 1217. 3606. 9083. 18621. 26387. 76364. 122714. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 7300. 9400. 14000. 3800. 990. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 4. 11. 24. 41. 55. 68. 135. 161. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 183. 1262. 3612. 8664. 17221. 24583. 70094. 111080. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 6400. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Dissolved Chloride LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 130 NUMBER OF UNCENSORED OBS.: 130 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 67722. 21709. 32345. 40277. 52330. 90280. 115203. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.7369E+00 + 8.7355E-01 LN(FLOW) + 9.2409E-02 SIN(DECTIME) + 1.0712E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.029 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 30.45 ( 23 DF) PROBABILITY LEVEL = 0.137 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.7369E+00 + 8.7355E-01 LN(FLOW) + 9.2409E-02 SIN(DECTIME) + 1.0712E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.029 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 5.5622E+00 + 8.8861E-01 LN(FLOW) + 8.5654E-02 SIN(DECTIME) + 1.0657E-01 COS(DECTIME) 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2600. 3800. 2600. 2000. 1900. STD DEV LOAD (TON/DAY) 43. 99. 62. 51. 47. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 18. 18. 19. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 859. 1752. 2101. 3234. 4312. 5198. 6851. 8022. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2600. 3800. 2600. 2000. 1900. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 18. 18. 19. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 860. 1753. 2103. 3237. 4315. 5202. 6859. 8032. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 2600. 3800. 2600. 2000. 1900. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 13. 14. 16. 17. 18. 18. 19. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 853. 1741. 2098. 3266. 4335. 5242. 7005. 8145. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 2600. 1 STATION NAME: Mississippi River at Lock and Dam 12 STATION NUMBER: M556.4A DRAINAGE AREA: 82218.0 SQUARE MILES CONSTITUENT: Dissolved Silicon LOAD ESTIMATES FOR 19930101 TO 19980804 TOTAL NUMBER OF OBS.: 130 NUMBER OF UNCENSORED OBS.: 129 CALIBRATION DATA PERIOD OF RECORD: 1993 TO 1998 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 67722. 21709. 32345. 40277. 52330. 90280. 115203. 249312. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 68182. 18927. 33530. 40996. 53187. 87178. 120240. 255833. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.4186E+00 + 1.5815E+00 LN(FLOW) - 3.1219E-01 SIN(DECTIME) + 5.5042E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.603 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 64.07 ( 23 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.3991E+00 + 1.5798E+00 LN(FLOW) - 3.1093E-01 SIN(DECTIME) + 5.4856E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.599 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 4.0988E-01 + 1.2510E+00 LN(FLOW) - 8.7092E-02 SIN(DECTIME) + 2.8066E-01 COS(DECTIME) WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: Mississippi River at Lock and Dam 12 (CONTINUED) STATION NUMBER: M556.4A LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 940. 1200. 850. 1000. 670. STD DEV LOAD (TON/DAY) 83. 160. 110. 130. 79. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 4. 5. 6. 8. 8. 10. 12. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 163. 470. 761. 1168. 1762. 2274. 3773. 4423. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 850. 1100. 770. 930. 610. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 4. 6. 7. 8. 9. 11. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 149. 424. 685. 1053. 1594. 2060. 3446. 4051. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 800. 1100. 780. 700. 550. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 4. 5. 5. 6. 6. 6. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 198. 465. 646. 989. 1419. 1742. 2823. 3232. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 810.