Web-based Load Calculation using LOADEST

- Use your own concentration data to estimate annual load in your watershed -

Please join our list to receive notifications about Web-based LOADEST.

Format:

Column 1: Date[yyyymmdd]
Column 2: Time (24-hour clock; If you do not have the time of sampling, use 1200 in all rows )
Column 3: Concentration (select units)
Note that LOADEST requires 12 or more nonzero observations (LOADEST User's Guide, p. 17)

Date Time Concentration

Parameter Name
Target Concentration

If you prefer, you may
(File must be in .csv or .txt format)

If the dataset has a negative value,

If you have flow data, you may enter it (or upload file). Otherwise select "USGS Gage Location Tool" to identify a gage and automatically pull in flow data.
Date Flow	(Currently unavailable) If the dataset has a negative value,
20090101 585 20090102 432 20090103 347 20090104 287 20090105 245 20090106 217 20090107 207 20090108 194 20090109 183 20090110 168 20090111 145 20090112 136 20090113 128 20090114 109 20090115 98 20090116 97 20090117 93 20090118 91 20090119 89 20090120 87 20090121 85 20090122 82 20090123 86 20090124 87 20090125 87 20090126 84 20090127 82 20090128 79 20090129 78 20090130 75 20090131 74 20090201 73 20090202 75 20090203 75 20090204 74 20090205 72 20090206 72 20090207 134 20090208 358 20090209 613 20090210 599 20090211 1630 20090212 4250 20090213 5810 20090214 4490 20090215 1840 20090216 1280 20090217 923 20090218 725 20090219 626 20090220 534 20090221 465 20090222 409 20090223 358 20090224 322 20090225 293 20090226 284 20090227 531 20090228 744 20090301 688 20090302 518 20090303 420 20090304 365 20090305 342 20090306 328 20090307 306 20090308 646 20090309 1880 20090310 2550 20090311 2710 20090312 1950 20090313 1320 20090314 907 20090315 703 20090316 582 20090317 499 20090318 423 20090319 331 20090320 285 20090321 257 20090322 240 20090323 228 20090324 242 20090325 248 20090326 289 20090327 272 20090328 255 20090329 319 20090330 488 20090331 554 20090401 484 20090402 432 20090403 576 20090404 1100 20090405 1070 20090406 2770 20090407 3640 20090408 3000 20090409 1670 20090410 1290 20090411 1140 20090412 1040 20090413 952 20090414 1740 20090415 2520 20090416 2440 20090417 1560 20090418 1200 20090419 987 20090420 1530 20090421 1720 20090422 1400 20090423 1150 20090424 943 20090425 807 20090426 717 20090427 656 20090428 634 20090429 726 20090430 1500 20090501 2150 20090502 2870 20090503 3080 20090504 1750 20090505 1320 20090506 1030 20090507 1120 20090508 1450 20090509 1680 20090510 1430 20090511 1080 20090512 858 20090513 867 20090514 2050 20090515 2330 20090516 2870 20090517 1770 20090518 1330 20090519 919 20090520 672 20090521 537 20090522 466 20090523 418 20090524 376 20090525 351 20090526 330 20090527 302 20090528 288 20090529 277 20090530 275 20090531 268 20090601 248 20090602 407 20090603 520 20090604 716 20090605 652 20090606 549 20090607 434 20090608 368 20090609 324 20090610 293 20090611 455 20090612 931 20090613 689 20090614 561 20090615 438 20090616 367 20090617 336 20090618 302 20090619 282 20090620 267 20090621 285 20090622 315 20090623 334 20090624 282 20090625 256 20090626 233 20090627 225 20090628 206 20090629 195 20090630 190 20090701 161 20090702 140 20090703 131 20090704 128 20090705 127 20090706 132 20090707 120 20090708 115 20090709 115 20090710 113 20090711 111 20090712 107 20090713 104 20090714 97 20090715 98 20090716 98 20090717 97 20090718 92 20090719 88 20090720 88 20090721 86 20090722 88 20090723 88 20090724 101 20090725 92 20090726 91 20090727 93 20090728 83 20090729 83 20090730 112 20090731 86 20090801 67 20090802 58 20090803 55 20090804 57 20090805 59 20090806 60 20090807 56 20090808 55 20090809 53 20090810 50 20090811 49 20090812 47 20090813 47 20090814 46 20090815 45 20090816 45 20090817 43 20090818 108 20090819 86 20090820 80 20090821 132 20090822 80 20090823 62 20090824 56 20090825 52 20090826 49 20090827 48 20090828 48 20090829 52 20090830 72 20090831 55 20090901 48 20090902 48 20090903 47 20090904 45 20090905 43 20090906 42 20090907 40 20090908 40 20090909 42 20090910 46 20090911 44 20090912 41 20090913 39 20090914 38 20090915 36 20090916 36 20090917 36 20090918 35 20090919 35 20090920 34 20090921 35 20090922 37 20090923 49 20090924 47 20090925 45 20090926 44 20090927 44 20090928 41 20090929 37 20090930 36 20091001 38 20091002 44 20091003 94 20091004 70 20091005 51 20091006 44 20091007 41 20091008 48 20091009 106 20091010 249 20091011 148 20091012 98 20091013 82 20091014 76 20091015 75 20091016 87 20091017 87 20091018 73 20091019 66 20091020 62 20091021 61 20091022 64 20091023 170 20091024 473 20091025 216 20091026 151 20091027 123 20091028 117 20091029 127 20091030 121 20091031 169 20091101 231 20091102 164 20091103 143 20091104 129 20091105 118 20091106 111 20091107 103 20091108 97 20091109 97 20091110 92 20091111 90 20091112 88 20091113 89 20091114 87 20091115 86 20091116 100 20091117 182 20091118 215 20091119 266 20091120 254 20091121 240 20091122 217 20091123 194 20091124 177 20091125 169 20091126 177 20091127 181 20091128 169 20091129 167 20091130 165 20091201 168 20091202 161 20091203 260 20091204 385 20091205 360 20091206 305 20091207 258 20091208 231 20091209 383 20091210 573 20091211 561 20091212 452 20091213 368 20091214 512 20091215 580 20091216 562 20091217 465 20091218 387 20091219 338 20091220 304 20091221 275 20091222 246 20091223 227 20091224 218 20091225 279 20091226 1000 20091227 1320 20091228 899 20091229 552 20091230 432 20091231 375 20100101 326 20100102 299 20100103 279 20100104 262 20100105 249 20100106 242 20100107 232 20100108 224 20100109 218 20100110 212 20100111 209 20100112 201 20100113 194 20100114 193 20100115 188 20100116 181 20100117 175 20100118 175 20100119 178 20100120 183 20100121 203 20100122 339 20100123 535 20100124 1100 20100125 1950 20100126 1870 20100127 1240 20100128 780 20100129 610 20100130 519 20100131 464 20100201 413 20100202 386 20100203 359 20100204 341 20100205 324 20100206 315 20100207 301 20100208 290 20100209 280 20100210 270 20100211 264 20100212 256 20100213 252 20100214 245 20100215 241 20100216 238 20100217 234 20100218 229 20100219 224 20100220 223 20100221 232 20100222 308 20100223 472 20100224 549 20100225 548 20100226 487 20100227 448 20100228 421 20100301 412 20100302 456 20100303 607 20100304 724 20100305 687 20100306 661 20100307 651 20100308 655 20100309 689 20100310 699 20100311 641 20100312 589 20100313 1050 20100314 2680 20100315 3250 20100316 2300 20100317 1340 20100318 920 20100319 696 20100320 567 20100321 492 20100322 447 20100323 448 20100324 508 20100325 525 20100326 579 20100327 648 20100328 733 20100329 2220 20100330 2420 20100331 1510 20100401 923 20100402 669 20100403 554 20100404 499 20100405 443 20100406 409 20100407 392 20100408 603 20100409 558 20100410 458 20100411 407 20100412 369 20100413 347 20100414 328 20100415 307 20100416 299 20100417 292 20100418 274 20100419 265 20100420 253 20100421 249 20100422 267 20100423 265 20100424 273 20100425 301 20100426 382 20100427 346 20100428 301 20100429 235 20100430 221 20100501 252 20100502 300 20100503 270 20100504 285 20100505 293 20100506 288 20100507 299 20100508 321 20100509 253 20100510 243 20100511 331 20100512 561 20100513 543 20100514 479 20100515 396 20100516 352 20100517 351 20100518 384 20100519 448 20100520 520 20100521 754 20100522 1390 20100523 1030 20100524 703 20100525 549 20100526 460 20100527 407 20100528 372 20100529 348 20100530 318 20100531 323 20100601 749 20100602 569 20100603 576 20100604 457 20100605 391 20100606 951 20100607 1110 20100608 609 20100609 693 20100610 929 20100611 764 20100612 625 20100613 868 20100614 1130 20100615 1950 20100616 3250 20100617 3180 20100618 1470 20100619 1980 20100620 1980 20100621 1430 20100622 3510 20100623 5180 20100624 4530 20100625 2790 20100626 1380 20100627 869 20100628 744 20100629 877 20100630 660 20100701 479 20100702 375 20100703 308 20100704 260 20100705 228 20100706 200 20100707 183 20100708 178 20100709 218 20100710 186 20100711 159 20100712 146 20100713 137 20100714 130 20100715 125 20100716 146 20100717 131 20100718 114 20100719 111 20100720 106 20100721 104 20100722 103 20100723 103 20100724 106 20100725 169 20100726 190 20100727 122 20100728 114 20100729 162 20100730 143 20100731 127 20100801 184 20100802 142 20100803 121 20100804 146 20100805 344 20100806 249 20100807 152 20100808 125 20100809 115 20100810 107 20100811 104 20100812 182 20100813 131 20100814 110 20100815 99 20100816 91 20100817 87 20100818 86 20100819 84 20100820 83 20100821 83 20100822 85 20100823 83 20100824 78 20100825 74 20100826 70 20100827 67 20100828 65 20100829 64 20100830 62 20100831 60 20100901 61 20100902 70 20100903 78 20100904 67 20100905 57 20100906 52 20100907 49 20100908 47 20100909 48 20100910 56 20100911 61 20100912 54 20100913 56 20100914 48 20100915 46 20100916 46 20100917 44 20100918 44 20100919 44 20100920 43 20100921 42 20100922 42 20100923 44 20100924 46 20100925 43 20100926 42 20100927 41 20100928 41 20100929 41 20100930 42
Site Name
Watershed Area from the USGS Station	sq. mi The value will be valid, if the "USGS Gage Location Tool" is used.
Watershed Area (above monitoring site)	If you do not know the watershed area, use the

Output Load Unit :

Optional : Aggregated by season (output file download only) If you wish, you may define seasons for aggregating output load in the column at right	Season 1: - Season 2: - Season 3: - Season 4: -
Optional : Set Model Number Model number "0" is default, makes an appropriate selection. (LOADEST User's Guide, p. 12)

Developed by the Agricultural and Biological Engineering Department at Purdue University
Contact Dr. Jane Frankenberger for more details if you need any help for this "Web-based Load Calculation using LOADEST" tool.
Programmed by Youn Shik Park, Kongju National University