Wambo Coal AEMR 2011-2012 - Peabody Energy

Annual Environmental Management Report 2011 - 2012
Month
SW01 - Wollombi Brook Up SW03 - Wollombi Brook Pump Out SW02 - Wollombi Brook Down
pH EC (uS/cm) TSS (mg/L) TDS (mg/L) pH EC (uS/cm) TSS (mg/L) TDS (mg/L) pH EC (uS/cm) TSS (mg/L) TDS (mg/L)
Criteria 6.0-9.5 3,269 120 N/A 6.0-9.5 3,269 120 N/A 6.0-9.5 3,269 120 N/A
Jul-11 7.20 285 12 190 7.20 286 12 191 7.10 354 15 204
Aug-11 7.40 398 6 226 7.80 392 7 228 7.40 398 6 220
Sep-11 7.60 474 8 258 7.80 465 14 278 7.90 481 6 270
Oct-11 8.10 302 7 138 7.20 269 8 189 9.00 340 5 174
Nov-11 7.00 589 5 348 7.50 577 11 320 7.80 623 18 354
Dec-11 7.80 212 16 185 7.70 290 42 192 8.10 376 17 223
Jan-12 7.30 536 6 406 7.40 553 10 340 7.30 583 5 366
Feb-12 7.80 366 5 196 7.60 412 8 214 8.80 511 6 244
Mar-12 7.60 306 9 188 7.20 350 58 194 7.10 299 17 189
Apr-12 7.30 444 8 212 7.60 464 8 218 7.40 470 6 244
May-12 7.40 545 6 332 7.70 602 17 319 7.50 622 5 330
Jun-12 8.00 433 8 268 7.70 437 12 248 7.40 442 8 274
Average 7.54 408 8 246 7.53 425 17 244 7.73 458 10 258
Month
SW40 - Wollombi Brook Upstream of SWC SW04 - North Wambo Creek Up SW26 - North Wambo Creek Middle Upper
pH EC (uS/cm) TSS (mg/L) TDS (mg/L) pH EC (uS/cm) TSS (mg/L) TDS (mg/L) pH EC (uS/cm) TSS (mg/L) TDS (mg/L)
Criteria 6.0-9.5 3,269 120 N/A 6.0-9.5 2,140 120 N/A 6.0-9.5 2,140 120 N/A
Jul-11 6.40 275
Aug-11 7.50 396
Sep-11 7.80 455 12 266
Oct-11 8.20 280 6 171
Nov-11 6.90 637 50 149
Dec-11 8.40 315 15 227 8.00 280 5 173
Jan-12 7.50 750 532 5 322
Feb-12 8.20 381 6 206
Mar-12 7.70 647 87 116
Apr-12 7.40 444 14 190
May-12 7.50 600 12 302
Jun-12 8.20 443 6 286
Average 7.64 450 21 224 8.00 280 5 173
Appendix 2C: Surface Water Monitoring Results
Blank cells indicate that no sample was collected as the site was dry, inaccessible or not due for collection
Bolded/shaded cells indicated results are outside recommended criteria