Supplemental Materials 1 - Figures and Tables

Supp. Table 1
Rainfall and tile metrics for each site-event.
WY Season Season4 Event Site Rain (mm) Volume (mm) R.R. Response Time (hr) Peak Flow Rate (mm/day) Time to Peak Flow (min) MHRI (mm/day) Days Since Manure App. Days Since P App. TP Load (g/ha) TP FWMC (ug/L) SRP Load (g/ha) SRP FWMC (ug/L)
2019 Non-Growing Fall 11-02 AHS 54.36 8.4 0.15 13.65 31.70 2085 152.40 27 27 4.30 50.9 0.00 0.00
2019 Non-Growing Fall 11-06 AHS 10.41 2.5 0.24 18.53 3.55 150 73.15 31 31 3.30 133.6 0.00 0.00
2019 Non-Growing Fall 11-09 AHS 30.23 18.5 0.61 4.62 38.84 330 121.92 34 34 43.90 236.7 0.00 0.00
2019 Non-Growing Fall 11-13 AHS 13.46 2.5 0.19 10.08 1.76 465 121.92 38 38 2.70 110.1 0.00 0.00
2019 Non-Growing Fall 11-25 AHS 35.31 48.3 1.37 11.50 33.57 2465 103.63 50 50 84.50 174.9 0.00 0.00
2019 Non-Growing Fall 12-02 AHS 20.57 24.4 1.19 NA 50.65 485 128.02 57 57 29.20 119.8 0.00 0.00
2019 Non-Growing Fall 12-21 AHS NA 34.2 NA NA 44.68 1165 NA 76 76 141.80 415.1 0.00 0.00
2019 Non-Growing Fall 12-31 AHS NA 6.8 NA NA 3.92 1455 NA 86 86 11.10 162.0 0.00 0.00
2019 Non-Growing Winter 01-24 AHS NA 21.7 NA NA 37.03 790 NA 110 110 3.30 15.0 0.00 0.00
2019 Non-Growing Winter 03-14 AHS NA 13.6 NA NA 31.44 1555 NA 159 159 54.10 397.1 0.00 0.00
2019 Non-Growing Winter 03-21 AHS NA 20.6 NA NA 19.78 2875 NA 166 166 33.70 163.0 0.00 0.00
2019 Non-Growing Spring 04-09 AHS NA 7.0 NA NA 17.39 90 NA 185 185 10.30 147.9 0.00 0.00
2019 Non-Growing Spring 04-15 AHS NA 4.1 NA NA 3.55 95 NA 191 191 4.00 98.0 0.00 0.00
2019 Non-Growing Spring 04-20 AHS NA 32.0 NA NA 44.96 370 NA 196 196 115.40 360.5 0.00 0.00
2019 Non-Growing Spring 04-26 AHS NA 21.7 NA NA 43.74 515 NA 202 202 86.50 399.0 0.00 0.00
2019 Growing Spring 05-10 AHS NA 8.0 NA NA 20.38 285 NA 216 216 29.90 374.0 0.00 0.00
2019 Growing Spring 05-13 AHS NA 6.0 NA NA 4.28 330 NA 219 219 3.50 57.8 0.00 0.00
2019 Growing Spring 05-19 AHS NA 13.9 NA NA 24.30 520 NA 225 225 21.00 151.2 0.00 0.00
2019 Growing Spring 05-26 AHS NA 2.1 NA NA 2.66 55 NA 232 7 1.30 61.4 0.00 0.00
2019 Growing Spring 05-28 AHS NA 8.4 NA NA 9.88 200 207.26 234 9 5.60 66.7 0.00 0.00
2019 Growing Spring 06-05 AHS 41.15 28.1 0.68 21.35 56.27 260 225.55 242 17 277.90 989.1 0.00 0.00
2019 Growing Spring 06-11 AHS 25.40 9.8 0.39 3.17 17.13 175 188.98 248 23 19.60 199.1 0.00 0.00
2019 Growing Spring 06-29 AHS NA 3.1 NA NA 4.54 50 NA 266 41 4.50 147.0 0.00 0.00
2019 Growing Summer 07-06 AHS NA 1.3 NA NA 6.44 45 NA 273 48 2.10 158.6 0.00 0.00
2020 Non-Growing Fall 10-07 AHS 40.39 0.6 0.01 5.07 3.60 185 170.69 1 1 10.00 1559.0 0.00 0.00
2020 Non-Growing Fall 10-17 AHS 66.55 22.3 0.34 6.50 45.44 350 158.50 11 11 154.80 693.4 0.00 0.00
2020 Non-Growing Fall 10-23 AHS 12.70 0.6 0.05 4.77 2.34 315 103.63 17 17 2.60 475.8 0.00 0.00
2020 Non-Growing Fall 11-19 AHS 10.16 5.6 0.55 2.97 3.69 4105 97.54 44 44 9.50 171.4 0.00 0.00
2020 Non-Growing Fall 11-27 AHS 13.72 9.7 0.71 2.45 46.64 515 79.25 52 52 91.60 943.1 0.00 0.00
2020 Non-Growing Fall 12-09 AHS 3.81 6.0 1.57 NA 4.29 1395 67.06 64 64 15.10 249.8 0.00 0.00
2020 Non-Growing Fall 12-30 AHS NA 9.3 NA NA 20.04 520 NA 85 85 28.70 309.8 0.00 0.00
2020 Non-Growing Winter 01-11 AHS NA 31.3 NA NA 50.28 1645 NA 97 97 196.30 627.5 0.00 0.00
2020 Non-Growing Winter 01-25 AHS NA 9.5 NA NA 3.65 2025 NA 111 111 14.80 156.0 0.00 0.00
2020 Non-Growing Winter 02-24 AHS NA 1.2 NA NA 2.43 275 NA 141 141 1.40 121.9 0.00 0.00
2020 Non-Growing Winter 02-26 AHS NA 2.7 NA NA 3.55 320 NA 143 143 4.80 177.9 0.00 0.00
2020 Non-Growing Winter 03-03 AHS NA 46.5 NA NA 39.50 840 NA 149 149 194.80 418.9 0.00 0.00
2020 Non-Growing Winter 03-06 AHS NA 7.3 NA NA 17.68 215 NA 152 152 16.60 229.3 0.00 0.00
2020 Non-Growing Winter 03-08 AHS NA 1.8 NA NA 3.40 205 NA 154 154 6.30 341.0 0.00 0.00
2020 Non-Growing Winter 03-11 AHS NA 6.1 NA NA 4.94 445 NA 157 157 13.10 216.7 0.00 0.00
2020 Non-Growing Winter 03-26 AHS NA 2.0 NA NA 5.35 130 NA 172 172 4.20 204.1 1.20 61.24
2020 Non-Growing Winter 03-29 AHS 18.29 10.5 0.57 3.93 6.49 2025 54.86 175 175 27.50 262.9 8.40 80.35
2020 Non-Growing Spring 04-03 AHS 8.64 4.4 0.51 12.52 6.51 205 36.58 180 180 10.40 234.4 0.00 0.00
2020 Non-Growing Spring 04-13 AHS 17.78 12.1 0.68 3.78 47.69 660 97.54 190 190 70.40 582.0 20.30 167.88
2020 Non-Growing Spring 04-27 AHS 24.64 3.1 0.13 4.17 6.26 275 103.63 204 204 11.90 385.7 3.50 113.38
2021 Non-Growing Fall 12-01 AHS 29.72 9.7 0.33 3.05 33.27 475 134.11 56 56 80.50 826.7 45.90 470.62
2021 Non-Growing Fall 12-25 AHS 28.19 23.9 0.85 2.07 43.47 965 152.40 80 80 119.30 497.9 85.30 356.05
2021 Non-Growing Winter 01-17 AHS 20.32 1.7 0.08 20.82 1.75 570 109.73 103 103 1.80 107.6 1.10 64.60
2020 Non-Growing Fall 10-17 DCN 66.55 NA NA NA NA NA NA 5 5 NA 2770.0 NA NA
2020 Non-Growing Fall 10-23 DCN 12.70 6.4 0.50 1.27 17.95 305 103.63 11 11 NA NA NA NA
2020 Non-Growing Fall 10-27 DCN 16.51 12.1 0.73 3.98 34.69 160 128.02 15 15 NA NA NA NA
2020 Non-Growing Fall 10-31 DCN 74.93 37.8 0.50 1.75 58.64 1185 323.09 19 19 NA NA NA NA
2020 Non-Growing Fall 11-24 DCN NA NA NA NA NA NA NA 43 43 NA 468.0 NA NA
2020 Non-Growing Fall 11-27 DCN 13.72 14.8 1.08 0.70 46.14 565 79.25 46 46 165.76 1120.0 NA NA
2020 Non-Growing Fall 12-09 DCN 3.81 9.7 2.55 0.33 9.42 510 67.06 58 58 52.19 538.0 22.70 234.00
2020 Non-Growing Fall 12-14 DCN 8.64 8.0 0.93 5.85 11.76 1220 36.58 63 63 46.40 580.0 15.76 197.00
2020 Non-Growing Fall 12-28 DCN NA NA NA NA NA NA NA 77 77 NA 238.0 NA 118.00
2020 Non-Growing Fall 12-30 DCN NA 11.1 NA NA 25.20 550 NA 79 79 41.96 378.0 NA NA
2020 Non-Growing Winter 01-03 DCN NA 6.2 NA NA 12.65 290 NA 83 83 18.97 306.0 NA NA
2020 Non-Growing Winter 01-11 DCN NA 30.1 NA NA 49.97 1515 NA 91 91 230.57 766.0 81.27 270.00
2020 Non-Growing Winter 01-25 DCN NA 13.4 NA NA 6.36 1325 NA 105 105 62.71 468.0 18.09 135.00
2020 Non-Growing Winter 02-27 DCN NA 13.3 NA NA 32.05 340 NA 138 138 NA NA NA NA
2020 Non-Growing Winter 03-03 DCN NA 79.8 NA NA 43.33 3115 NA 143 143 329.57 413.0 NA NA
2020 Non-Growing Winter 03-08 DCN NA NA NA NA NA NA NA 148 148 NA 377.0 NA NA
2020 Non-Growing Winter 03-13 DCN NA 9.2 NA NA 31.11 215 NA 153 153 49.86 542.0 NA NA
2020 Non-Growing Winter 03-26 DCN NA 7.6 NA 4.17 11.68 1550 109.73 166 166 NA NA NA NA
2020 Non-Growing Winter 03-29 DCN 18.29 16.8 0.92 1.35 12.10 785 54.86 169 169 NA NA NA NA
2020 Non-Growing Spring 04-03 DCN 8.64 7.4 0.86 5.77 10.48 600 36.58 174 174 NA NA NA NA
2020 Non-Growing Spring 04-13 DCN 17.78 13.3 0.75 2.87 47.12 710 97.54 184 184 NA NA NA NA
2020 Non-Growing Spring 04-27 DCN 24.64 9.4 0.38 2.50 22.54 345 103.63 198 198 NA NA NA NA
2020 Growing Spring 05-12 DCN 16.76 3.5 0.21 1.52 14.01 285 91.44 213 15 35.40 1012.4 22.70 649.91
2020 Growing Summer 08-04 DCN 65.02 3.6 0.06 11.58 49.74 190 408.43 297 99 10.70 301.2 3.10 88.18
2020 Growing Summer 09-30 DCN 56.39 1.1 0.02 8.25 7.93 250 219.46 2 2 17.90 1669.6 5.80 538.05
2021 Non-Growing Fall 12-01 DCN 29.72 12.7 0.43 2.05 46.63 530 134.11 64 64 68.90 544.1 24.40 193.01
2021 Non-Growing Fall 12-25 DCN 28.19 30.0 1.06 2.07 53.67 915 152.40 88 88 147.30 491.0 53.20 177.31
2021 Non-Growing Winter 01-17 DCN 20.32 4.4 0.22 21.82 7.10 435 109.73 111 111 9.60 219.5 2.70 62.38
2021 Non-Growing Winter 03-11 DCN NA 55.0 NA NA 53.45 2975 24.38 164 164 224.80 408.5 84.90 154.36
2021 Non-Growing Spring 04-16 DCN 44.45 20.5 0.46 7.42 26.66 1820 128.02 200 1 97.20 474.0 18.90 91.91
2021 Non-Growing Spring 04-22 DCN 17.02 10.1 0.59 0.08 9.57 875 54.86 206 7 32.20 319.7 6.30 62.59
2021 Non-Growing Spring 04-30 DCN 37.34 29.7 0.80 23.75 52.55 495 79.25 214 15 182.80 615.1 41.20 138.78
2021 Growing Spring 05-06 DCN 25.15 20.8 0.83 1.12 48.80 835 97.54 220 21 168.70 809.3 45.90 220.22
2021 Growing Summer 07-02 DCN 54.36 18.0 0.33 5.55 49.67 240 201.17 277 39 38.80 216.2 15.50 86.52
2021 Growing Summer 07-03 DCN 16.00 8.4 0.52 23.98 26.55 55 134.11 278 40 15.60 186.9 6.40 76.37
2021 Growing Summer 07-09 DCN 28.19 8.9 0.32 7.55 49.39 375 134.11 284 46 30.80 345.0 12.10 135.73
2021 Growing Summer 07-13 DCN 18.80 2.5 0.13 0.03 17.54 140 243.84 288 50 8.20 333.4 3.30 134.50
2021 Growing Summer 07-14 DCN 7.37 1.6 0.22 11.10 6.55 85 158.50 289 51 1.50 93.9 0.60 37.11
2021 Growing Summer 07-18 DCN 47.24 21.7 0.46 10.62 58.92 605 195.07 293 55 139.20 642.5 49.80 229.72
2021 Growing Summer 07-19 DCN 7.87 6.0 0.76 23.55 23.35 125 195.07 294 56 30.70 512.1 0.00 0.00
2021 Growing Summer 07-21 DCN 20.07 11.1 0.55 0.05 58.42 75 243.84 296 58 73.70 664.6 23.80 214.28
2021 Growing Summer 07-30 DCN 11.18 1.3 0.12 17.53 6.86 130 152.40 305 67 3.26 251.0 1.10 84.70
2021 Growing Summer 08-02 DCN 32.26 15.6 0.48 6.23 57.75 135 310.90 308 70 129.64 831.0 23.71 152.00
2021 Growing Summer 08-11 DCN 18.29 0.4 0.02 18.95 11.83 25 268.22 317 79 NA NA NA NA
2021 Growing Summer 08-20 DCN 55.12 17.4 0.32 23.78 55.99 680 195.07 326 88 79.34 456.0 11.48 66.00
2021 Growing Summer 09-08 DCN 29.46 2.4 0.08 0.63 48.56 40 640.08 345 107 5.76 240.0 1.21 50.50
2021 Growing Summer 09-24 DCN 33.02 1.6 0.05 3.37 12.04 210 213.36 361 123 15.18 949.0 2.67 167.00
2020 Non-Growing Fall 10-17 DCS 66.55 12.6 0.19 5.08 17.98 405 158.50 5 5 195.30 1550.0 NA NA
2020 Non-Growing Fall 10-23 DCS 12.70 2.5 0.20 2.02 9.94 260 103.63 11 11 NA NA NA NA
2020 Non-Growing Fall 10-27 DCS 16.51 5.1 0.31 3.57 15.42 190 128.02 15 15 84.15 1650.0 20.55 403.00
2020 Non-Growing Fall 10-31 DCS 74.93 12.6 0.17 2.17 19.91 1075 323.09 19 19 228.06 1810.0 NA NA
2020 Non-Growing Fall 11-24 DCS NA NA NA NA NA NA NA 43 43 NA 666.0 NA NA
2020 Non-Growing Fall 11-27 DCS 13.72 5.1 0.37 NA 16.74 850 79.25 46 46 60.69 1190.0 NA NA
2020 Non-Growing Fall 12-09 DCS 3.81 NA NA NA NA NA NA 58 58 NA 574.0 NA 245.00
2020 Non-Growing Fall 12-14 DCS 8.64 2.5 0.29 13.68 6.11 740 36.58 63 63 12.17 487.0 5.95 238.00
2020 Non-Growing Fall 12-28 DCS NA NA NA NA NA NA NA 77 77 NA NA NA NA
2020 Non-Growing Fall 12-30 DCS NA 4.1 NA NA 11.41 490 NA 79 79 25.01 610.0 NA NA
2020 Non-Growing Winter 01-03 DCS NA 4.8 NA NA 6.24 265 NA 83 83 19.10 398.0 NA NA
2020 Non-Growing Winter 01-11 DCS NA 12.2 NA NA 17.47 1500 NA 91 91 90.77 744.0 NA NA
2020 Non-Growing Winter 01-25 DCS NA 5.0 NA NA 3.08 1230 NA 105 105 22.35 447.0 6.05 121.00
2020 Non-Growing Winter 03-03 DCS NA NA NA NA NA NA NA 143 143 NA 504.0 NA NA
2020 Non-Growing Winter 03-05 DCS NA 6.1 NA NA 16.10 285 NA 145 145 NA NA NA NA
2020 Non-Growing Winter 03-06 DCS NA 2.7 NA NA 13.17 205 NA 146 146 NA NA NA NA
2020 Non-Growing Winter 03-08 DCS NA NA NA NA NA NA NA 148 148 NA 384.0 NA NA
2020 Non-Growing Winter 03-09 DCS NA 3.5 NA NA 7.04 290 NA 149 149 NA NA NA NA
2020 Non-Growing Winter 03-13 DCS NA 2.8 NA NA 14.10 240 NA 153 153 19.99 714.0 NA NA
2020 Non-Growing Winter 03-26 DCS NA 1.3 NA NA 5.43 170 NA 166 166 NA NA NA NA
2020 Non-Growing Winter 03-29 DCS 18.29 6.1 0.33 3.02 5.76 690 54.86 169 169 NA NA NA NA
2020 Non-Growing Spring 04-03 DCS 8.64 1.4 0.16 11.85 4.49 245 36.58 174 174 NA NA NA NA
2020 Non-Growing Spring 04-13 DCS 17.78 5.0 0.28 4.20 16.62 640 97.54 184 184 NA NA NA NA
2020 Non-Growing Spring 04-26 DCS NA 3.0 NA 3.25 9.59 300 103.63 197 197 NA NA NA NA
2020 Growing Spring 05-12 DCS 16.76 1.2 0.07 2.60 5.87 215 91.44 213 15 11.90 972.7 7.80 639.94
2020 Growing Summer 08-04 DCS 65.02 1.6 0.02 12.08 17.19 160 408.43 297 99 4.50 281.9 0.80 51.96
2020 Growing Summer 09-30 DCS 56.39 0.3 0.01 10.17 2.65 140 219.46 2 2 4.60 1512.9 1.50 508.74
2021 Non-Growing Winter 03-11 DCS NA 40.0 NA NA 33.12 2975 24.38 164 164 181.20 452.6 66.60 166.32
2021 Non-Growing Spring 04-16 DCS 44.45 13.8 0.31 9.50 24.08 1705 128.02 200 1 73.10 529.3 11.50 83.11
2021 Non-Growing Spring 04-22 DCS 17.02 6.2 0.36 3.00 7.93 690 54.86 206 7 23.50 379.5 4.50 72.90
2021 Non-Growing Spring 04-30 DCS 37.34 20.6 0.55 23.75 33.54 585 79.25 214 15 138.70 672.8 27.20 131.90
2021 Growing Spring 05-06 DCS 25.15 13.4 0.53 0.20 32.38 925 97.54 220 21 111.40 832.7 27.10 202.64
2021 Growing Summer 07-02 DCS 54.36 15.8 0.29 5.88 31.80 215 201.17 277 39 34.00 216.0 12.10 76.48
2021 Growing Summer 07-03 DCS 16.00 8.8 0.55 23.87 25.10 95 134.11 278 40 17.50 198.0 8.20 92.86
2021 Growing Summer 07-09 DCS 28.19 8.6 0.31 7.13 31.53 415 134.11 284 46 26.30 307.9 10.70 125.55
2021 Growing Summer 07-13 DCS 18.80 2.1 0.11 0.62 15.24 110 243.84 288 50 6.80 322.7 2.00 95.99
2021 Growing Summer 07-14 DCS 7.37 1.1 0.15 11.60 7.47 50 158.50 289 51 2.70 250.6 0.90 82.27
2021 Growing Summer 07-18 DCS 47.24 18.6 0.39 8.95 36.65 710 195.07 293 55 91.20 489.1 26.80 143.75
2021 Growing Summer 07-19 DCS 7.87 5.3 0.67 23.38 22.20 140 195.07 294 56 42.10 789.9 0.00 0.00
2021 Growing Summer 07-21 DCS 20.07 8.2 0.41 0.22 34.86 80 243.84 296 58 59.10 718.5 19.00 231.62
2021 Growing Summer 07-30 DCS 11.18 1.1 0.10 17.37 6.52 140 152.40 305 67 3.43 312.0 0.68 62.20
2021 Growing Summer 08-02 DCS 32.26 11.7 0.36 6.40 35.40 140 310.90 308 70 69.97 598.0 12.29 105.00
2021 Growing Summer 08-11 DCS 18.29 0.7 0.04 19.12 24.63 15 268.22 317 79 NA NA NA NA
2021 Growing Summer 08-20 DCS 55.12 14.1 0.26 23.70 35.22 720 195.07 326 88 49.07 348.0 13.06 92.60
2021 Growing Summer 09-08 DCS 29.46 2.5 0.08 0.63 32.91 40 640.08 345 107 8.62 345.0 1.15 45.90
2021 Growing Summer 09-24 DCS 33.02 1.3 0.04 3.70 11.48 190 213.36 361 123 8.42 648.0 0.86 66.20

p < .0001 ***; p < .001 **, p < .01 *, p < .05 `.

Supp. Figure 1 Kendall Correlations between event rainfall metrics and day of hydrologic year (Oct. 1 - Sep. 30), including all data (top) and removing the 2021 WY Growing season (bottom).

Supp. Table 2 Event tile metrics for each site.

AHS
(N=47)		 DCN
(N=47)		 DCS
(N=46)		 Overall
(N=140)
Response Time (hr)
Mean (SD) 8.16 (6.42) 7.52 (8.03) 8.76 (7.73) 8.11 (7.52)
Median [Min, Max] 4.77 [2.07, 21.4] 4.17 [0.0300, 24.0] 6.14 [0.200, 23.9] 5.08 [0.0300, 24.0]
Missing 28 (59.6%) 12 (25.5%) 16 (34.8%) 56 (40.0%)
R.R.
Mean (SD) 0.533 (0.431) 0.536 (0.472) 0.264 (0.173) 0.439 (0.399)
Median [Min, Max] 0.510 [0.0100, 1.57] 0.470 [0.0200, 2.55] 0.285 [0.0100, 0.670] 0.340 [0.0100, 2.55]
Missing 26 (55.3%) 13 (27.7%) 16 (34.8%) 55 (39.3%)
Peak Flow Rate (mm/day)
Mean (SD) 20.3 (18.1) 31.1 (19.1) 17.7 (10.9) 23.0 (17.4)
Median [Min, Max] 17.1 [1.75, 56.3] 26.7 [6.36, 58.9] 16.1 [2.65, 36.7] 17.5 [1.75, 58.9]
Missing 0 (0%) 4 (8.5%) 5 (10.9%) 9 (6.4%)
TP Load (g/ha)
Mean (SD) 44.3 (62.5) 77.7 (80.3) 55.7 (60.3) 57.4 (68.5)
Median [Min, Max] 14.8 [1.30, 278] 46.4 [1.50, 330] 26.3 [2.70, 228] 28.7 [1.30, 330]
Missing 0 (0%) 14 (29.8%) 15 (32.6%) 29 (20.7%)
SRP Load (g/ha)
Mean (SD) 3.53 (14.2) 21.4 (23.2) 12.0 (14.6) 10.6 (18.7)
Median [Min, Max] 0 [0, 85.3] 15.6 [0, 84.9] 8.00 [0, 66.6] 1.15 [0, 85.3]
Missing 0 (0%) 19 (40.4%) 22 (47.8%) 41 (29.3%)

p < .0001 ***; p < .001 **, p < .01 *, p < .05 .

Supp. Figure 2 Kendall Correlations between event rainfall metrics and day of hydrologic year (Oct. 1 - Sep. 30), including all data (top) and removing the 2021 WY Growing season (bottom).

Supp. Table 3 MRC constants at each site.
SF
QF
QF:SF ratio
Q_0 (L/s)
abs(k)
Q_0 (L/s)
abs(k)
AHS 11 0.05 175 0.4 8.0
DCS 6 0.13 9 0.5 3.8
DCN 8 0.08 25 0.28 3.5
Supp. Table 4 Summary of flow pathway and source connectivity models for events included in the four component hydrograph separation. Time to Peak in hours in parenthesis.
Total Rainfall (mm) Flow Volume (mm) QF SF Old New QF old QF new SF old SF new
DCNSUB05122020 16.26 3.5 (4.8) 6.1 (4.8) 0.2 (14) 4.5 (4.8) 1.7 (5) 4.3 (4.8) 1.7 (5) 0.2 (14) 0 (0)
DCSSUB05122020 16.26 1.2 (3.6) 1 (3.6) 0.4 (10.4) 1 (3.6) 0.4 (3.6) 0.6 (3.6) 0.3 (3.6) 0.4 (9.9) 0 (10.2)
DCNSUB12012020 29.72 12.7 (8.8) 21.2 (8.8) 1.4 (25) 11.8 (8.8) 10.8 (8.8) 10.4 (8.8) 10.8 (8.8) 1.4 (25) 0 (0)
DCNSUB12252020 28.19 30 (15.2) 49.3 (15.2) 4.1 (37.1) 20.6 (15.2) 32.8 (15.2) 17.2 (15.2) 32.2 (15.2) 3.5 (37.2) 0.6 (37.1)
DCNSUB01172021 20.57 4.4 (7.2) 5.8 (7.2) 2 (45.1) 2.1 (7.2) 5.7 (7.2) 1.1 (7.2) 4.7 (7.2) 1 (52.1) 0.9 (45.1)
DCNSUB03112021 1.02 55 (49.6) 80.1 (49.6) 17.9 (89.7) 24.5 (30.7) 73.5 (52.8) 12.1 (30.7) 68 (52.8) 12.5 (66.7) 5.5 (89.8)
DCSSUB03112021 1.02 40 (49.6) 33.3 (29.8) 9.9 (79.3) 13 (32.2) 30.2 (49.6) 5.2 (32.2) 28.1 (49.6) 7.8 (63.7) 2.1 (79.3)
DCNSUB04162021 44.7 20.5 (30.3) 31.4 (30.3) 5.1 (57) 7.2 (30.3) 29.4 (30.3) 3.1 (30.2) 28.3 (30.3) 4.1 (57) 1 (53.2)
DCSSUB04162021 44.7 13.8 (28.4) 12.2 (28.4) 2.7 (48.2) 5.9 (28.4) 9.1 (28.4) 3.5 (28.4) 8.8 (28.4) 2.4 (41.3) 0.3 (47.4)
DCNSUB04222021 17.02 10.1 (14.6) 12.1 (14.6) 5.9 (59.5) 13.5 (14.6) 4.4 (14.6) 7.7 (14.6) 4.4 (14.6) 5.8 (59) 0.1 (58.1)
DCSSUB04222021 17.02 6.2 (11.5) 4.3 (11.5) 2.4 (44.1) 3.9 (12.2) 2.7 (11.5) 1.7 (12.2) 2.5 (11.5) 2.2 (39.5) 0.2 (43.1)
DCNSUB04302021 29.72 29.7 (8.2) 43.1 (8.2) 9.8 (48.2) 24.2 (8.2) 28.8 (8.2) 15.4 (8.2) 27.7 (8.2) 8.8 (49.8) 1 (47.7)
DCSSUB04302021 30.23 20.6 (9.8) 17.9 (9.8) 4.3 (43.1) 9.9 (10) 12.4 (9.8) 6.1 (10) 11.8 (9.8) 3.7 (35.2) 0.6 (42.8)
DCNSUB05062021 25.15 20.8 (13.9) 31.2 (13.9) 5.9 (40) 21.3 (13.8) 15.9 (13.9) 15.4 (13.8) 15.8 (13.9) 5.9 (40) 0 (36.8)
DCSSUB05062021 24.89 13.4 (15.4) 11.8 (15.4) 2.7 (30.9) 6.6 (15.9) 7.8 (14.9) 4.1 (15.9) 7.7 (14.9) 2.5 (27.2) 0.2 (30.6)
DCNSUB07022021 54.36 18 (4) 29.6 (4) 2.4 (20.1) 12.1 (3.9) 19.9 (4) 9.7 (3.9) 19.9 (4) 2.4 (20.1) 0 (0)
DCSSUB07022021 55.63 15.8 (3.6) 16.4 (3.6) 0.6 (22) 6.9 (6) 10.1 (9.9) 6.2 (6) 10.1 (9.9) 0.6 (22) 0 (0)
DCNSUB07032021 29.21 8.4 (0.9) 8.6 (0.9) 6.3 (19.3) 13.4 (0.8) 1.5 (1.3) 7.1 (0.8) 1.5 (1.3) 6.2 (19.1) 0 (19.4)
DCSSUB07032021 31.75 8.8 (1.6) 5.9 (1.6) 3.6 (21.9) 8.1 (2) 1.5 (1.6) 4.4 (2) 1.5 (1.6) 3.6 (21.8) 0 (0.5)
DCNSUB07092021 28.19 8.9 (6.2) 14.2 (6.2) 1.7 (15) 7.4 (6.2) 8.5 (6.2) 5.7 (6.2) 8.5 (6.2) 1.7 (15) 0 (13.8)
DCSSUB07092021 28.19 8.6 (6.9) 8 (6.8) 1.3 (17.4) 5 (7.7) 4.3 (6.9) 3.8 (7.7) 4.2 (6.9) 1.2 (15.7) 0.1 (17.1)
DCNSUB07132021 18.8 2.5 (2.3) 3.9 (2.3) 0.5 (10) 3.1 (2.3) 1.3 (2.6) 2.6 (2.3) 1.3 (2.6) 0.5 (10) 0 (0.3)
DCSSUB07132021 18.8 2.1 (1.8) 1.9 (1.8) 0.4 (10) 1.5 (1.8) 0.7 (2) 1.1 (1.8) 0.7 (2) 0.4 (10) 0 (0.1)
DCNSUB07182021 47.24 21.7 (10.1) 35.6 (10.1) 3 (22) 12.4 (4.2) 26.2 (10.1) 9.4 (4.2) 26.2 (10.1) 3 (22) 0 (0.5)
DCSSUB07182021 49.78 18.6 (11.8) 18 (11.8) 2.1 (28.5) 8 (12.6) 12.1 (10.4) 5.9 (12.6) 12.1 (10.4) 2.1 (27.1) 0 (28.2)
DCS Sum 318.27 149.1 130.7 30.4 69.8 91.3 42.6 87.8 26.9 3.5
DCN Sum 390.15 246.2 372.2 66.2 178.1 260.4 121.2 251 57 9.1
Mean 28.34 15.81 20.12 3.86 9.92 14.07 6.55 13.55 3.36 0.5
S.D. 14.58 12.65 18.35 3.96 6.81 16.19 4.64 15.2 3.03 1.16
Supp. Table 5 Pearson correlation matrix with p-values for rainfall and tile discharge metrics for events included in the four-component hydrograph separation. Hydrograph separation components are in units ‘mm’ and all other variable units are the same as in Supp. Table 1.
Volume Rain RR 24 hr Rain 7 day Rain 30 day Rain Peak Rainfall Intensity Response Time Time to Peak Flow Peak Flow Rate TP Load SRP Load PPL QF QF_TtP SF SF_TtP old old_TtP new new_TtP QF_old QF_old_TtP QF_new QF_new_TtP SF_old SF_old_TtP SF_new
Volume
Rain -0.14
RR 0.78**** -0.56**
24 hr Rain -0.38 0.62** -0.39
7 day Rain -0.46* 0.12 -0.36 0.41*
30 day Rain -0.37 0.24 -0.40* 0.25 0.67***
Peak Rainfall Intensity -0.43* 0.38 -0.40* 0.47* 0.34 0.61**
Response Time -0.41* 0.15 -0.46* 0.05 0.28 0.37 0.25
Time to Peak Flow 0.78**** -0.35 0.82**** -0.44* -0.46* -0.52** -0.55** -0.43*
Peak Flow Rate 0.63*** 0.36 0.26 -0.01 -0.02 0.12 0.04 -0.23 0.26
TP Load 0.90**** -0.15 0.59** -0.52** -0.49* -0.24 -0.47* -0.33 0.69*** 0.64***
SRP Load 0.92**** -0.27 0.74**** -0.51** -0.48* -0.28 -0.41* -0.45* 0.71**** 0.60** 0.93****
PPL 0.85**** -0.09 0.50* -0.51** -0.47* -0.21 -0.47* -0.25 0.64*** 0.63*** 0.99**** 0.86****
QF 0.94**** -0.07 0.66*** -0.35 -0.46* -0.35 -0.33 -0.31 0.65*** 0.56** 0.85**** 0.89**** 0.80****
QF_TtP 0.77**** -0.28 0.76**** -0.42* -0.45* -0.51** -0.55** -0.30 0.96**** 0.24 0.68*** 0.68*** 0.65*** 0.70***
SF 0.86**** -0.41* 0.81**** -0.36 -0.28 -0.34 -0.55** -0.25 0.73**** 0.30 0.75**** 0.75**** 0.71**** 0.80**** 0.74****
SF_TtP 0.76**** -0.37 0.72**** -0.54** -0.46* -0.56** -0.70**** -0.25 0.88**** 0.14 0.68*** 0.62*** 0.67*** 0.64*** 0.87**** 0.82****
old 0.79**** -0.09 0.44* -0.29 -0.24 -0.23 -0.36 -0.20 0.40* 0.51** 0.79**** 0.76**** 0.76**** 0.85**** 0.43* 0.78**** 0.53**
old_TtP 0.67*** -0.21 0.63*** -0.40* -0.45* -0.55** -0.57** -0.33 0.95**** 0.22 0.62** 0.56** 0.62** 0.54** 0.94**** 0.60** 0.85**** 0.33
new 0.94**** -0.15 0.76**** -0.37 -0.49* -0.38 -0.35 -0.33 0.74**** 0.49* 0.82**** 0.87**** 0.76**** 0.97**** 0.79**** 0.83**** 0.71**** 0.73**** 0.63***
new_TtP 0.80**** -0.34 0.84**** -0.41* -0.47* -0.53** -0.54** -0.44* 0.99**** 0.27 0.68*** 0.71**** 0.63*** 0.66*** 0.96**** 0.74**** 0.88**** 0.41* 0.94**** 0.76****
QF_old 0.63*** 0.10 0.18 -0.23 -0.22 -0.16 -0.17 -0.15 0.16 0.55** 0.67*** 0.66*** 0.65*** 0.75**** 0.21 0.50* 0.27 0.93**** 0.12 0.58** 0.17
QF_old_TtP 0.67*** -0.21 0.63*** -0.41* -0.45* -0.55** -0.57** -0.33 0.95**** 0.22 0.62** 0.56** 0.62** 0.54** 0.94**** 0.60** 0.85**** 0.33 1.00**** 0.63*** 0.94**** 0.12
QF_new 0.94**** -0.12 0.74**** -0.36 -0.49* -0.37 -0.34 -0.32 0.73**** 0.50* 0.83**** 0.87**** 0.77**** 0.98**** 0.78**** 0.81**** 0.69*** 0.74**** 0.62*** 1.00**** 0.75**** 0.60** 0.62***
QF_new_TtP 0.80**** -0.34 0.84**** -0.41* -0.47* -0.53** -0.54** -0.44* 0.99**** 0.27 0.68*** 0.71**** 0.63*** 0.66*** 0.96**** 0.74**** 0.88**** 0.41* 0.94**** 0.76**** 1.00**** 0.17 0.94**** 0.75****
SF_old 0.82**** -0.35 0.71**** -0.31 -0.20 -0.27 -0.54** -0.21 0.66*** 0.31 0.74**** 0.71**** 0.72**** 0.76**** 0.66*** 0.98**** 0.79**** 0.83**** 0.54** 0.75**** 0.66*** 0.56** 0.54** 0.75**** 0.66***
SF_old_TtP 0.67*** -0.29 0.57** -0.54** -0.46* -0.57** -0.70*** -0.14 0.78**** 0.06 0.61** 0.52** 0.63*** 0.58** 0.78**** 0.75**** 0.97**** 0.52** 0.79**** 0.63*** 0.77**** 0.29 0.79**** 0.62** 0.77**** 0.73****
SF_new 0.81**** -0.48* 0.92**** -0.43* -0.45* -0.45* -0.46* -0.30 0.79**** 0.20 0.63*** 0.71**** 0.57** 0.76**** 0.81**** 0.87**** 0.78**** 0.51** 0.64*** 0.86**** 0.81**** 0.25 0.64*** 0.84**** 0.81**** 0.76**** 0.67***
SF_new_TtP 0.68*** -0.44* 0.66*** -0.59** -0.37 -0.47* -0.73**** -0.22 0.83**** 0.08 0.63*** 0.55** 0.64*** 0.55** 0.83**** 0.78**** 0.95**** 0.47* 0.83**** 0.62** 0.82**** 0.20 0.83**** 0.60** 0.82**** 0.75**** 0.93**** 0.73****

p < .0001 ****; p < .001 ***, p < .01 **, p < .05 *

Supp. Table 6 Summary statistics for ‘High’ and ‘Low’ rainfall pulses during events.

High
(N=47)		 Low
(N=81)
pulse_length (hours)
Mean (SD) 5.47 (3.81) 1.55 (1.81)
Median [Min, Max] 5.00 [0.500, 14.5] 0.500 [0.500, 8.50]
pulse_sums (mm)
Mean (SD) 15.9 (14.0) 1.36 (1.88)
Median [Min, Max] 15.0 [1.52, 64.5] 0.508 [0.254, 7.87]
pulse_max (mm/day)
Mean (SD) 179 (118) 23.8 (16.0)
Median [Min, Max] 122 [73.2, 512] 12.2 [12.2, 61.0]
meanTP (g/ha/day)
Mean (SD) 98.2 (129) 35.5 (41.8)
Median [Min, Max] 55.0 [0.537, 602] 21.9 [1.68, 245]
meanSRP (g/ha/day)
Mean (SD) 30.8 (50.7) 9.22 (12.9)
Median [Min, Max] 16.2 [0.169, 305] 5.77 [0.510, 81.8]
meanPP (g/ha/day)
Mean (SD) 67.6 (84.1) 26.2 (29.8)
Median [Min, Max] 30.9 [0.306, 349] 17.1 [0.587, 163]
maxFlow (mm/day)
Mean (SD) 24.5 (17.9) 9.13 (7.72)
Median [Min, Max] 25.1 [0.607, 58.9] 7.50 [1.38, 44.4]

Supp. Figure 3 Hydrographs and P species in event samples. Events included in the four component hydrograph seperation analysis at DCS (top) and DCN (bottom). AHS is omitted because only 1 event was included. Plot ranges for P and flow are set to maximum values observed in this anaylsis, however note that at DCN on 12/25/2020 the range is extended to show the high P concentrations.

old code