1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Total Nitrogen
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 358 NUMBER OF UNCENSORED OBS.: 358
CALIBRATION DATA PERIOD OF RECORD: 1976 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
4487. 151. 291. 688. 1914. 5226. 13624. 31928.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 3.9804E+00 + 5.3216E-01 LN(FLOW) + 4.6786E-02 LN(FLOW)**2
- 7.5644E-02 SIN(DECTIME) + 2.3197E-01 COS(DECTIME)
ESTIMATED RESIDUAL VARIANCE = 0.228
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 79.42 ( 68 DF)
PROBABILITY LEVEL = 0.162
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 3.9804E+00 + 5.3216E-01 LN(FLOW) + 4.6786E-02 LN(FLOW)**2
- 7.5644E-02 SIN(DECTIME) + 2.3197E-01 COS(DECTIME)
ESTIMATED RESIDUAL VARIANCE = 0.228
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = + 4.1068E+00 + 5.2258E-01 LN(FLOW) + 4.6206E-02 LN(FLOW)**2
- 6.8567E-02 SIN(DECTIME) + 1.7902E-01 COS(DECTIME)
1
STATION: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 140. 260. 190. 82. 32.
STD DEV LOAD (TON/DAY) 9. 18. 14. 5. 2.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
3. 4. 5. 7. 9. 10. 12. 19.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 12. 46. 154. 375. 595. 1116. 4791.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 140. 260. 190. 82. 32.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
3. 4. 5. 7. 9. 10. 12. 19.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 12. 46. 153. 374. 594. 1117. 4849.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 140. 250. 190. 78. 31.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
3. 4. 5. 7. 9. 10. 12. 19.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
2. 12. 46. 150. 369. 587. 1084. 4734.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 120.
1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Total Nitrate + Nitrite
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 541 NUMBER OF UNCENSORED OBS.: 540
CALIBRATION DATA PERIOD OF RECORD: 1976 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
5219. 151. 349. 838. 2506. 6485. 14227. 33592.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = - 2.9100E+00 + 1.6922E+00 LN(FLOW) - 3.2298E-02 SIN(DECTIME)
+ 5.2196E-01 COS(DECTIME)
ESTIMATED RESIDUAL VARIANCE = 0.732
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 199.24 (105 DF)
PROBABILITY LEVEL = 0.001
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = - 2.9049E+00 + 1.6916E+00 LN(FLOW) - 3.1666E-02 SIN(DECTIME)
+ 5.2067E-01 COS(DECTIME)
ESTIMATED RESIDUAL VARIANCE = 0.731
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = - 2.2029E+00 + 1.6143E+00 LN(FLOW) - 3.6262E-02 SIN(DECTIME)
+ 4.4129E-01 COS(DECTIME)
1
STATION: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 150. 320. 180. 84. 30.
STD DEV LOAD (TON/DAY) 11. 26. 15. 7. 2.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 2. 4. 7. 10. 13. 18. 24.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 5. 33. 148. 418. 715. 1565. 6086.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 150. 300. 170. 80. 29.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 2. 4. 7. 10. 12. 17. 23.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 5. 31. 140. 396. 678. 1485. 5785.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 130. 260. 160. 70. 26.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 2. 4. 6. 8. 10. 14. 18.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 5. 30. 127. 349. 588. 1226. 4671.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 96.
1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Dissolved Ammonia
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 585 NUMBER OF UNCENSORED OBS.: 541
CALIBRATION DATA PERIOD OF RECORD: 1976 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
5375. 151. 358. 915. 2683. 6963. 14498. 33592.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 1.2276E+02 - 4.0918E-01 LN(FLOW) + 4.3516E-02 LN(FLOW)**2
+ 4.3419E-01 SIN(DECTIME) + 2.4345E-01 COS(DECTIME)
- 5.7399E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.702
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 168.48 (114 DF)
PROBABILITY LEVEL = 0.001
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 1.1429E+02 - 4.8551E-01 LN(FLOW) + 4.9244E-02 LN(FLOW)**2
+ 4.2025E-01 SIN(DECTIME) + 2.3487E-01 COS(DECTIME)
- 5.3003E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.664
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = + 1.0842E+02 + 2.5238E-01 LN(FLOW) + 4.0653E-04 LN(FLOW)**2
+ 4.0724E-01 SIN(DECTIME) + 1.6114E-01 COS(DECTIME)
- 5.1362E-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: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3.40 5.70 2.60 2.00 3.30
STD DEV LOAD (TON/DAY) 0.16 0.39 0.16 0.13 0.20
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 1. 2. 3. 8. 11.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 2. 3. 4. 6. 8. 11. 16.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3.40 5.80 2.70 2.00 3.20
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 1. 2. 3. 7. 11.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 2. 3. 4. 6. 8. 12. 17.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3.40 5.40 2.80 2.10 3.10
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 1. 2. 3. 6. 8.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
1. 2. 3. 4. 6. 8. 9. 12.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 3.8
1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Total Phosphorus
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 579 NUMBER OF UNCENSORED OBS.: 579
CALIBRATION DATA PERIOD OF RECORD: 1976 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
5354. 151. 360. 915. 2683. 6854. 14456. 33592.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 3.4884E+01 - 3.2778E-01 LN(FLOW) + 7.6077E-02 LN(FLOW)**2
- 4.4115E-02 SIN(DECTIME) - 2.0336E-01 COS(DECTIME)
- 1.4505E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.199
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 166.60 (112 DF)
PROBABILITY LEVEL = 0.001
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 3.4884E+01 - 3.2778E-01 LN(FLOW) + 7.6077E-02 LN(FLOW)**2
- 4.4115E-02 SIN(DECTIME) - 2.0336E-01 COS(DECTIME)
- 1.4505E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.199
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = + 3.5000E+01 - 3.2915E-01 LN(FLOW) + 7.6467E-02 LN(FLOW)**2
- 1.9112E-02 SIN(DECTIME) - 1.9204E-01 COS(DECTIME)
- 1.4565E-02 DECTIME
1
STATION: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 5.20 8.70 8.00 2.90 1.20
STD DEV LOAD (TON/DAY) 0.19 0.39 0.35 0.10 0.04
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 0. 0. 1. 1. 1.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 1. 2. 6. 14. 20. 32. 132.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 5.30 8.80 8.10 2.90 1.20
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 0. 0. 1. 1. 1.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 1. 2. 6. 14. 20. 33. 134.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 5.30 9.10 8.10 2.80 1.30
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 0. 0. 0. 0. 1. 1. 1.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
0. 1. 2. 6. 14. 20. 34. 136.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 5.3
1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Soluble Reactive Phosphorus (measured as Orthophosphate)
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 365 NUMBER OF UNCENSORED OBS.: 359
CALIBRATION DATA PERIOD OF RECORD: 1977 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6695. 198. 564. 1446. 4264. 9537. 16786. 33592.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 4.7496E+01 - 7.4102E-01 LN(FLOW) + 9.7240E-02 LN(FLOW)**2
- 2.0349E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.760
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 188.81 ( 70 DF)
PROBABILITY LEVEL = 0.001
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 4.7119E+01 - 7.4167E-01 LN(FLOW) + 9.7332E-02 LN(FLOW)**2
- 2.0158E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.749
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = + 4.6857E+01 - 8.6781E-01 LN(FLOW) + 1.0713E-01 LN(FLOW)**2
- 1.9739E-02 DECTIME
1
STATION: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 2.40 4.10 3.20 1.40 0.78
STD DEV LOAD (TON/DAY) 0.19 0.39 0.29 0.08 0.05
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. 1. 3. 6. 9. 15. 51.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 2.20 3.80 2.90 1.30 0.72
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. 1. 3. 5. 8. 14. 49.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 2.30 4.00 3.10 1.30 0.70
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. 1. 3. 6. 9. 15. 60.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 2.1
1
STATION NAME: Minnesota River at Fort Snelling, MN
STATION NUMBER: MI 3.5
DRAINAGE AREA: 16846.0 SQUARE MILES
CONSTITUENT: Total Suspended Solids
LOAD ESTIMATES FOR 19760101 TO 19961231
TOTAL NUMBER OF OBS.: 550 NUMBER OF UNCENSORED OBS.: 550
CALIBRATION DATA PERIOD OF RECORD: 1976 TO 1996
CALIBRATION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
5264. 151. 348. 862. 2553. 6823. 14238. 33592.
PREDICTION DATA SET STREAMFLOW SUMMARY STATISTICS
MEAN MINIMUM 10TH PCT 25TH PCT MEDIAN 75TH PCT 90TH PCT MAXIMUM
6201. 147. 389. 1071. 3068. 8142. 16534. 94524.
WARNING: THE RATIO OF LARGEST PREDICTION DATA SET STEAMFLOW AND LARGEST
CALIBRATION DATA SET STREAMFLOW EXCEEDS 2.0
MAXIMUM LIKELIHOOD ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 8.8452E+01 + 6.0374E-01 LN(FLOW) + 4.9722E-02 LN(FLOW)**2
- 4.1239E-01 SIN(DECTIME) - 8.3350E-01 COS(DECTIME)
- 4.1721E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.637
TURNBULL-WEISS LIKELIHOOD RATIO NORMALITY TEST STATISTIC = 152.96 (107 DF)
PROBABILITY LEVEL = 0.002
LINEAR ATTRIBUTION ESTIMATE OF BEST FIT MODEL
---------------------------------------------
LN(LOAD) = + 8.8452E+01 + 6.0374E-01 LN(FLOW) + 4.9722E-02 LN(FLOW)**2
- 4.1239E-01 SIN(DECTIME) - 8.3350E-01 COS(DECTIME)
- 4.1721E-02 DECTIME
ESTIMATED RESIDUAL VARIANCE = 0.637
LEAST ABSOLUTE DEVIATION ESTIMATE OF BEST FIT MODEL
---------------------------------------------------
LN(LOAD) = + 8.7944E+01 + 7.2276E-01 LN(FLOW) + 4.3271E-02 LN(FLOW)**2
- 4.2254E-01 SIN(DECTIME) - 8.2228E-01 COS(DECTIME)
- 4.1769E-02 DECTIME
WARNING: MAXIMUM PREDICTED CONCENTRATION EXCEEDS 100000 UG/L
1
STATION: Minnesota River at Fort Snelling, MN (CONTINUED)
STATION NUMBER: MI 3.5
LOADS ESTIMATED BY RATING CURVE METHOD (MAXIMUM LIKELIHOOD PARAM. EST.)
-----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3300. 4200. 7400. 1300. 150.
STD DEV LOAD (TON/DAY) 280. 380. 730. 100. 10.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
12. 31. 81. 150. 241. 295. 457. 773.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
6. 110. 531. 3100. 9179. 13989. 32941. 197033.
LOADS ESTIMATED BY RATING CURVE METHOD (LINEAR ATTRIBUTION PARAM. EST.)
----------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3600. 4600. 8200. 1500. 170.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
13. 35. 89. 166. 266. 325. 506. 876.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
6. 122. 586. 3425. 10138. 15502. 36541. 223371.
LOADS ESTIMATED BY RATING CURVE METHOD (LEAST ABSOLUTE DEVIATION PARAM. EST.)
-----------------------------------------------------------------------------
ANNUAL SPRING SUMMER FALL WINTER
AVERAGE LOAD (TON/DAY) 3700. 4700. 8300. 1500. 170.
PREDICTED CONCENTRATION SUMMARY STATISTICS (MG/L)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
12. 35. 89. 168. 271. 332. 514. 861.
PREDICTED LOAD SUMMARY STATISTICS (TON/DAY)
MINIMUM 25TH PCT MEDIAN 75TH PCT 90TH PCT 95TH PCT 99TH PCT MAXIMUM
6. 121. 593. 3474. 10288. 15683. 36917. 219410.
LOAD ESTIMATED BY BEALE RATIO ESTIMATOR
---------------------------------------
AVERAGE ANNUAL LOAD (TON/DAY): 2300.