PRESENTATION GENERALE DES BASSINS-VERSANTS ETUDIES SUR LA BASE DU MNT A PAS DE 250 M.
| numéro | bv | ligne | colon | x_lambert | y_lambert | surface (ha) | pentes > 5 % | % | pentes > 7 % | % | pentes > 10 % | % | pluies en 103 m3/an | azote en t N/an | conc. mg NO3/l | Cours d'eau | Communes | Dpt | Codes hydro |
| 1 | 1 | 565 | 869 | 263,375 | 2406,625 | 5263 | 325 | 6 | 106 | 2 | 13 | 0 | 10889 | 358 | 145 | GuÉbriand | Saint Cast | 22 | J 114400 |
| 2 | 2 | 605 | 959 | 285,875 | 2416,625 | 1163 | 0 | 0 | 0 | 0 | 0 | 0 | 2034 | 2 | 4 | Ste Suzanne | St Coulomb | 35 | J 081 |
| 3 | 3 | 457 | 1084 | 317,125 | 2379,625 | 9156 | 738 | 8 | 206 | 2 | 19 | 0 | 28206 | 103 | 16 | Minette | Romazy | 35 | J 011400 |
| 4 | 4 | 233 | 905 | 272,375 | 2323,625 | 15500 | 2231 | 14 | 500 | 3 | 50 | 0 | 25525 | 325 | 56 | Combs | Maure de Bretagne | 35 | J 865030 |
| 5 | 5 | 398 | 629 | 203,375 | 2364,875 | 3613 | 1119 | 31 | 219 | 6 | 25 | 1 | 14931 | 191 | 56 | Blavet | GuerlÉdan | 56 | J 541021 |
| 6 | 6 | 299 | 599 | 195,875 | 2340,125 | 3731 | 1613 | 43 | 869 | 23 | 281 | 8 | 16853 | 84 | 22 | Brandifrout | Melrand | 56 | J 553410 |
| 7a | 7 | 379 | 297 | 120,375 | 2360,125 | 12969 | 5400 | 42 | 3313 | 26 | 1419 | 11 | 77584 | 529 | 30 | Steir | Quimper | 29 | J 430030 |
| 7i | 8 | 358 | 290 | 118,625 | 2354,875 | 19562 | 8988 | 46 | 5663 | 29 | 2656 | 14 | 113588 | 672 | 26 | Steir inf. | Quimper | 29 | J 431030 |
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|
6594 | 3588 | |
2350 | |
1238 | |
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| 10a | 9 | 436 | 331 | 128,875 | 2374,375 | 141688 | 73944 | 52 | 43994 | 31 | 18525 | 13 | 784356 | 5175 | 29 | Aulne | |
29 | |
| 10i | 10 | 455 | 300 | 121,125 | 2379,125 | 150581 | 79900 | 53 | 48388 | 32 | 21031 | 14 | 833072 | 5723 | 30 | Aulne inf. | Chateaulin | 29 | J 382018 |
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8894 | 5956 | |
4394 | |
2506 | |
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| 11 | 11 | 561 | 311 | 123,875 | 2405,625 | 631 | 256 | 41 | 81 | 13 | 19 | 3 | 4103 | 54 | 58 | Kerouallon | Loc Eguiner | 29 | J 341650 |
| 12 | 12 | 523 | 337 | 130,375 | 2396,125 | 2413 | 1644 | 68 | 1150 | 48 | 631 | 26 | 18081 | 94 | 23 | Elorn | Mougau | 29 | J 340030 |
| 13 | 13 | 445 | 336 | 130,125 | 2376,625 | 1325 | 619 | 47 | 369 | 28 | 63 | 5 | 7288 | 91 | 55 | Vernic | Pleyben | 29 | J 382600 |
