_id No. Province Area size (km^2) The amount of water stored (1 hm^3) The amount of water added each year (1 hm^3/Year) Total amount of groundwater that can be developed (1 hm^3/Year) The amount of groundwater that can be used (1 hm^3/Year) The amount of groundwater used (1 hm^3/Year) (deep level) The amount of groundwater used (1 hm^3/Year) (Wake level) The amount of groundwater used (1 hm^3/Year) (Total) Remaining amount of groundwater(1 hm^3/Year) Regional division 1 1 Krabi 4,754 26,146 1,032 774 723 22 6 28 695 Southern 2 2 Bangkok 1,567 91,680 242 181 181 27 - 27 154 Centeal 3 3 Kanchanaburi 19,305 30,282 2,036 1,527 953 94 97 191 762 Western 4 4 Kalasin 6,752 7,165 936 702 687 66 163 229 459 Northeastern 5 5 Kamphaeng Phet 7,798 3,027 999 749 650 59 700 759 -108 Centeal 6 6 Khon Kaen 10,659 27,133 1,290 967 931 117 71 188 743 Northeastern 7 7 Chanthaburi 6,373 8,019 1,818 1,363 1,242 35 28 63 1,179 Eastern 8 8 Chachoengsao 5,170 19,935 692 519 514 24 11 35 479 Eastern 9 9 Chonburi 4,430 6,465 575 431 423 34 17 52 371 Eastern 10 10 Chai Nat 2,505 837 301 226 224 34 155 189 35 Centeal 11 11 Chaiyaphum 12,691 19,969 1,419 1,064 785 70 91 161 623 Northeastern 12 12 Chumphon 5,932 4,658 1,118 838 710 19 9 28 682 Southern 13 13 Chiang Rai 11,526 13,000 1,963 1,472 1,006 57 397 454 552 Northen 14 14 Chiang Mai 21,985 58,866 2,491 1,868 975 98 563 661 313 Northen 15 15 Trang 4,576 18,961 1,004 753 674 25 2 27 647 Southern 16 16 Trat 2,803 3,553 1,003 752 703 19 2 22 681 Eastern 17 17 Tak 17,197 24,201 1,812 1,359 739 13 31 45 695 Western 18 18 Nakhon Nayok 2,141 406 429 322 250 21 12 33 217 Centeal 19 19 Nakhon Pathom 2,140 31,685 240 180 180 97 53 149 31 Centeal 20 20 Nakhon Phanom 5,718 7,444 1,290 968 956 59 184 242 713 Northeastern 21 21 Nakhon Ratchasima 20,706 44,327 2,162 1,622 1,483 87 97 183 1,300 Northeastern 22 22 Nakhon Si Thammarat 9,856 50,339 2,362 1,772 1,514 73 134 207 1,307 Southern 23 23 Nakhon Sawan 9,529 5,531 1,026 770 740 42 820 862 -122 Centeal 24 24 Nonthaburi 636 30,547 75 56 56 12 0 12 44 Centeal 25 25 Narathiwat 4,475 12,080 1,113 835 708 13 52 65 643 Southern 26 26 Nan 12,130 8,727 1,502 1,126 607 12 52 64 543 Northern 27 27 Bueng Kan 4,047 3,928 623 467 464 - 32 32 432 Northeastern 28 28 Buriram 10,051 12,041 1,212 909 905 43 201 244 660 Northeastern 29 29 Pathum Thani 1,521 57,791 180 135 135 68 2 70 65 Centeal 30 30 Prachuap Khiri Khan 6,333 2,691 704 528 411 27 6 33 378 Western 31 31 Prachinburi 5,032 479 946 709 613 33 20 53 560 Eastern 32 32 Pattani 1,934 5,171 357 267 260 17 67 84 175 Southern 33 33 Phra Nakhon Si Ayutthaya 2,547 28,854 282 211 211 120 5 126 86 Centeal 34 34 Phayao 6,184 5,810 678 509 385 26 51 77 308 Northern 35 35 Phang Nga 3,765 5,896 1,116 837 661 10 5 15 646 Southern 36 36 Phatthalung 3,406 7,364 678 508 451 27 36 63 389 Southern 37 37 Phichit 4,319 8,441 564 423 423 78 806 885 -461 Centeal 38 38 Phitsanulok 10,596 21,378 1,415 1,062 929 65 735 800 129 Centeal 39 39 Phetchaburi 6,097 2,361 602 451 293 15 18 33 260 Western 40 40 Phetchabun 12,340 17,231 1,331 999 763 57 569 627 137 Centeal 41 41 Phrae 6,486 16,052 702 526 391 25 76 101 290 Northern 42 42 Phuket 479 178 109 82 72 23 3 27 45 Southern 43 43 Maha Sarakham 5,608 5,691 689 517 517 51 64 115 402 Northeastern 44 44 Mukdahan 4,122 4,039 622 466 435 30 19 49 385 Northeastern 45 45 Mae Hong Son 12,656 11,145 1,623 1,218 266 2 4 6 260 Northern 46 46 Yasothon 4,131 4,050 554 415 415 42 79 121 294 Northeastern 47 47 Yala 4,415 3,360 826 619 419 11 34 44 374 Western 48 48 Roi Et 7,872 8,271 1,060 795 793 49 204 254 540 Northeastern 49 49 Ranong 3,007 2,993 1,239 929 567 10 1 11 556 Western 50 50 Rayong 3,658 6,674 513 385 374 20 16 37 337 Eastern 51 51 Ratchaburi 5,171 4,175 533 400 322 104 20 123 199 Western 52 52 Lopburi 6,503 1,939 731 548 524 81 124 205 319 Centeal 53 53 Lampang 12,488 14,449 1,323 993 742 41 124 165 577 Northern 54 54 Lamphun 4,478 25,778 431 323 256 63 155 219 37 Northern 55 55 Loei 10,417 22,989 1,290 967 563 41 18 59 504 Northeastern 56 56 Sisaket 8,928 10,260 1,271 953 931 62 661 723 207 Northeastern 57 57 Sakon Nakhon 9,606 9,133 1,537 1,153 1,129 49 363 412 717 Southern 58 58 Songkhla 7,700 13,490 1,536 1,152 1,050 64 192 257 793 Northeastern 59 59 Satun 2,753 13,897 627 471 351 13 7 19 332 Southern 60 60 Samut Prakan 963 38,029 125 94 94 92 1 93 1 Centeal 61 61 Samut Songkhram 413 4,217 45 34 34 11 1 12 22 Centeal 62 62 Samut Sakhon 867 34,250 112 84 84 133 4 136 -53 Centeal 63 63 Sa Kaeo 6,863 8,073 1,108 831 794 19 56 75 719 Eastern 64 64 Saraburi 3,488 10,316 479 359 309 73 80 152 157 Centeal 65 65 Sing Buri 817 1,038 87 65 65 28 86 114 -48 Centeal 66 66 Suphan Buri 5,404 3,231 573 429 399 72 398 470 -72 Centeal 67 67 Surat Thani 12,976 35,245 2,120 1,590 1,292 44 59 103 1,190 Southern 68 68 Surin 8,844 16,451 1,196 897 897 62 558 620 277 Northeastern 69 69 Sukhothai 6,665 15,443 984 738 674 75 502 577 97 Centeal 70 70 Nong Khai 3,217 3,826 495 372 361 39 52 91 271 Northeastern 71 71 Nong Bua Lamphu 3,757 5,160 352 264 256 43 52 95 160 Northeastern 72 72 Ang Thong 951 5,571 113 85 85 22 75 97 -11 Centeal 73 73 Amnat Charoen 3,291 3,322 489 367 367 18 35 53 314 Northeastern 74 74 Udon Thani 11,120 10,772 1,547 1,160 1,129 49 138 187 942 Northeastern 75 75 Uttaradit 7,868 13,034 1,110 832 663 29 61 89 574 Northern 76 76 Uthai Thani 6,649 1,413 754 565 411 24 70 94 317 Centeal 77 77 Ubon Ratchathani 15,588 15,339 2,465 1,849 1,841 76 546 622 1,218 Northeastern 78 Total 511,745 1,137,713 72,987 54,740 45,385 3,504 11,237 14,741 30,645