Table 2.20  Iron (mg/l) at the Lower Cape Fear River Program stations for the 2001-2002 monitoring period. 
                  The North Carolina standard for iron in freshwater is 1000 mg/l.  There is no standard for salt water.

DWQ# 72 87 89 90 91 59 74 92 79 80 83 84 65 64 68
month NAV M54 M35 M23 M18 NC11 LVC DP SAR LRC BC117 NCF 117 6RC GCO COL
AUG 995 455 200 175 150 665 650 925 1,460 1,470 870 1,200 2,680 4,710 1,460
OCT 675 370 400 355 250 975 1,080 980 990 1,250 380 740 2,730 465 815
DEC 740 435 450 420 635 580 640 690 1,240 500 415 595 4,210 1,600 730
FEB 1,160 980 515 390 530 1,470 1,320 1,070 430 715 1,580 580 405 190 415
APR 1,010 965 285 420 465 1,080 1,070 1,110 995 870 4,670 740 1,220 725 710
JUN 680 265 235 245 265 510 520 785 800 630 350 695 815 2,030 1,190
mean 877 578 348 334 383 880 880 927 986 906 1378 758 2010 1620 887
std dev 187 285 115 93 172 334 291 149 325 345 1534 207 1319 1522 343
max 1160 980 515 420 635 1470 1320 1110 1460 1470 4670 1200 4210 4710 1460
min 675 265 200 175 150 510 520 690 430 500 350 580 405 190 415