1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Total Nitrogen LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 102 NUMBER OF UNCENSORED OBS.: 102 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1986 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 6200. 909. 1678. 2443. 5180. 6323. 12390. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.2106E-01 + 1.1859E+00 LN(FLOW) + 1.3655E-01 SIN(DECTIME) - 3.2473E-02 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.120 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 28.34 ( 17 DF) PROBABILITY LEVEL = 0.041 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.2106E-01 + 1.1859E+00 LN(FLOW) + 1.3655E-01 SIN(DECTIME) - 3.2473E-02 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.120 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 3.7103E-01 + 1.1250E+00 LN(FLOW) + 1.1055E-01 SIN(DECTIME) - 2.8231E-02 COS(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: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 12. 24. 11. 9. 6. STD DEV LOAD (TON/DAY) 1. 2. 1. 1. 0. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 1. 1. 1. 1. 1. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 5. 7. 13. 27. 41. 84. 137. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 13. 24. 11. 9. 6. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 1. 1. 1. 1. 1. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 5. 7. 13. 28. 41. 85. 138. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 12. 22. 11. 9. 6. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 1. 1. 1. 1. 1. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 1. 5. 7. 13. 26. 38. 75. 119. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 13. 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Total Nitrate + Nitrite LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 110 NUMBER OF UNCENSORED OBS.: 85 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1995 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 6180. 909. 1702. 2885. 5225. 6368. 11860. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.3012E+01 + 3.7200E+00 LN(FLOW) - 1.4214E-01 LN(FLOW)**2 + 4.8231E-01 SIN(DECTIME) + 9.2440E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.596 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 72.54 ( 19 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 1.1194E+01 + 3.4019E+00 LN(FLOW) - 1.2860E-01 LN(FLOW)**2 + 4.3951E-01 SIN(DECTIME) + 8.0369E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.530 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 9.6996E+00 + 3.2725E+00 LN(FLOW) - 1.3268E-01 LN(FLOW)**2 + 4.8478E-01 SIN(DECTIME) + 6.4347E-01 COS(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: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3.10 6.20 1.00 2.10 3.10 STD DEV LOAD (TON/DAY) 0.30 0.85 0.13 0.31 0.41 PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 4. 7. 11. 19. 33. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3.30 6.50 1.30 2.30 3.30 PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 0. 0. 0. 0. 0. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 4. 7. 11. 19. 32. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 3.20 6.00 1.40 2.10 3.20 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. 1. 1. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 0. 1. 2. 4. 7. 10. 15. 22. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 2.7 - 2.8 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Dissolved Ammonia LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 47 NUMBER OF UNCENSORED OBS.: 45 CALIBRATION DATA PERIOD OF RECORD: 1979 TO 1995 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 7200. 909. 1696. 3240. 5540. 7380. 15220. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.8069E+00 + 1.2784E+00 LN(FLOW) + 3.7525E-02 SIN(DECTIME) + 6.2149E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.662 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 12.31 ( 6 DF) PROBABILITY LEVEL = 0.055 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 3.9136E+00 + 1.2921E+00 LN(FLOW) + 5.2349E-02 SIN(DECTIME) + 6.2648E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.639 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 4.6706E+00 + 1.3713E+00 LN(FLOW) + 1.7664E-01 SIN(DECTIME) + 7.9891E-01 COS(DECTIME) 1 STATION: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.84 1.40 0.43 0.82 0.67 STD DEV LOAD (TON/DAY) 0.12 0.29 0.09 0.20 0.14 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 0. 0. 1. 1. 2. 3. 5. 10. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.85 1.50 0.43 0.82 0.67 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. 0. 1. 1. 2. 3. 6. 11. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.91 1.70 0.38 0.80 0.77 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. 0. 1. 1. 2. 3. 7. 14. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 0.90 - 0.91 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Total Phosphorus LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 107 NUMBER OF UNCENSORED OBS.: 107 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1986 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 6141. 909. 1692. 2450. 5150. 6330. 12040. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.6931E+00 - 9.5823E-01 LN(FLOW) + 1.2899E-01 LN(FLOW)**2 + 6.6636E-02 SIN(DECTIME) - 2.0121E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.256 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 35.35 ( 18 DF) PROBABILITY LEVEL = 0.009 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 5.6931E+00 - 9.5823E-01 LN(FLOW) + 1.2899E-01 LN(FLOW)**2 + 6.6636E-02 SIN(DECTIME) - 2.0121E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.256 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 5.4963E+00 - 9.3616E-01 LN(FLOW) + 1.2917E-01 LN(FLOW)**2 - 2.6090E-02 SIN(DECTIME) - 2.4453E-01 COS(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: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.71 1.40 0.68 0.48 0.24 STD DEV LOAD (TON/DAY) 0.05 0.15 0.06 0.05 0.02 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. 0. 0. 1. 2. 2. 6. 13. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.72 1.40 0.68 0.49 0.24 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. 0. 0. 1. 2. 2. 7. 13. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.72 1.40 0.73 0.53 0.23 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. 0. 0. 1. 2. 2. 7. 14. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 0.79 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Soluble Reactive Phosphorus (measured as Dissolved Orthophosphate) LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 26 NUMBER OF UNCENSORED OBS.: 9 CALIBRATION DATA PERIOD OF RECORD: 1981 TO 1995 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 9618. 1760. 2738. 5308. 6320. 12400. 22680. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.4557E+00 + 9.1013E-01 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 1.080 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 27.02 ( 2 DF) PROBABILITY LEVEL = 0.001 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.5617E+00 + 9.8598E-01 LN(FLOW) ESTIMATED RESIDUAL VARIANCE = 0.589 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 2.9199E+00 + 1.0000E+00 LN(FLOW) 1 STATION: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.16 0.24 0.14 0.14 0.09 STD DEV LOAD (TON/DAY) 0.04 0.06 0.04 0.04 0.03 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. 0. 0. 0. 0. 0. 1. 1. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.28 0.45 0.26 0.25 0.16 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. 0. 0. 0. 1. 1. 1. 2. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 0.28 0.46 0.25 0.25 0.16 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. 0. 0. 0. 1. 1. 1. 2. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 0.09 - 0.18 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Total Suspended Sediment LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 100 NUMBER OF UNCENSORED OBS.: 100 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1986 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 6346. 909. 1724. 3073. 5225. 6403. 12530. 36000. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.4413E+01 - 4.4163E+00 LN(FLOW) + 3.4276E-01 LN(FLOW)**2 - 8.8923E-02 SIN(DECTIME) - 5.4678E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.586 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 28.64 ( 17 DF) PROBABILITY LEVEL = 0.038 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = + 2.4413E+01 - 4.4163E+00 LN(FLOW) + 3.4276E-01 LN(FLOW)**2 - 8.8923E-02 SIN(DECTIME) - 5.4678E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.586 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = + 2.4169E+01 - 4.4698E+00 LN(FLOW) + 3.5155E-01 LN(FLOW)**2 - 2.4147E-01 SIN(DECTIME) - 5.0177E-01 COS(DECTIME) WARNING: THE MAXIMUM PREDICTED CONCENTRATION EXCEEDS TWICE THE MAXIMUM OBSERVED SAMPLE CONCENTRATION. 1 STATION: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 150. 330. 170. 86. 24. STD DEV LOAD (TON/DAY) 22. 65. 24. 14. 3. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 6. 9. 12. 15. 34. 70. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 27. 49. 112. 296. 547. 2173. 6493. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 160. 350. 170. 89. 25. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 6. 9. 12. 16. 36. 77. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 12. 28. 50. 116. 306. 567. 2311. 7118. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 170. 350. 180. 110. 25. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 3. 4. 7. 9. 12. 17. 39. 89. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 11. 28. 51. 115. 313. 597. 2566. 8240. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 170. 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 SQUARE MILES CONSTITUENT: Dissolved Chloride LOAD ESTIMATES FOR 19741001 TO 19940930 TOTAL NUMBER OF OBS.: 106 NUMBER OF UNCENSORED OBS.: 106 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1986 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 5860. 909. 1688. 2443. 5150. 6323. 11620. 32200. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.1393E+01 + 1.8377E+00 LN(FLOW) - 5.3283E-02 LN(FLOW)**2 + 3.6234E-02 SIN(DECTIME) + 1.3069E-01 COS(DECTIME) + 1.0584E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.035 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 31.19 ( 18 DF) PROBABILITY LEVEL = 0.027 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 2.1393E+01 + 1.8377E+00 LN(FLOW) - 5.3283E-02 LN(FLOW)**2 + 3.6234E-02 SIN(DECTIME) + 1.3069E-01 COS(DECTIME) + 1.0584E-02 DECTIME ESTIMATED RESIDUAL VARIANCE = 0.035 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 2.1055E+01 + 1.9232E+00 LN(FLOW) - 5.7028E-02 LN(FLOW)**2 + 2.4762E-02 SIN(DECTIME) + 1.2458E-01 COS(DECTIME) + 1.0177E-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: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 42. 66. 35. 39. 29. STD DEV LOAD (TON/DAY) 2. 3. 2. 2. 1. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 3. 4. 4. 4. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 8. 22. 31. 50. 84. 108. 170. 241. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 42. 66. 35. 39. 29. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 3. 4. 4. 4. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 8. 22. 32. 50. 84. 109. 171. 243. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 42. 66. 35. 39. 28. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 2. 3. 3. 4. 4. 4. 4. 4. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 7. 22. 31. 50. 85. 110. 174. 247. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 39. 1 STATION NAME: St. Croix River at St. Croix Falls, WI STATION NUMBER: 05340500 DRAINAGE AREA: 6240.0 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.: 105 NUMBER OF UNCENSORED OBS.: 105 CALIBRATION DATA PERIOD OF RECORD: 1974 TO 1986 CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 5862. 909. 1684. 2435. 5150. 6325. 11660. 32200. PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM 4920. 896. 1790. 2340. 3330. 5620. 10000. 36700. MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 7.6601E-01 + 2.2729E+00 LN(FLOW) - 8.2093E-02 LN(FLOW)**2 + 1.2624E-02 SIN(DECTIME) + 2.0931E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.056 TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 37.56 ( 18 DF) PROBABILITY LEVEL = 0.004 LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL --------------------------------------------- LN(LOAD) = - 7.6601E-01 + 2.2729E+00 LN(FLOW) - 8.2093E-02 LN(FLOW)**2 + 1.2624E-02 SIN(DECTIME) + 2.0931E-01 COS(DECTIME) ESTIMATED RESIDUAL VARIANCE = 0.056 LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL --------------------------------------------------- LN(LOAD) = - 5.9241E-01 + 2.2614E+00 LN(FLOW) - 8.2735E-02 LN(FLOW)**2 + 4.7508E-02 SIN(DECTIME) + 2.0676E-01 COS(DECTIME) 1 STATION: St. Croix River at St. Croix Falls, WI (CONTINUED) STATION NUMBER: 05340500 LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.) ----------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 140. 210. 110. 140. 110. STD DEV LOAD (TON/DAY) 4. 9. 4. 6. 4. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 6. 10. 11. 14. 15. 15. 15. 15. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 29. 80. 112. 173. 265. 336. 487. 643. LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.) ---------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 140. 210. 110. 140. 110. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 6. 10. 11. 14. 15. 15. 15. 15. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 29. 80. 111. 172. 264. 335. 488. 646. LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.) ----------------------------------------------------------------------------- ANNUAL SPRING SUMMER FALL WINTER AVERAGE LOAD (TON/DAY) 140. 210. 110. 130. 110. PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 5. 10. 11. 14. 15. 15. 15. 15. PREDICTED LOAD SUMMARY STATISTICS (TON/DAY) MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM 29. 81. 111. 170. 262. 330. 479. 637. LOAD ESTIMATED BY BEALE RATIO ESTIMATOR --------------------------------------- AVERAGE ANNUAL LOAD (TON/DAY): 140.