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HomeMy WebLinkAboutTable 1 - Mayo BTV GW_20170804TABLE 1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Analytical Parameter pH Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Boron Cadmium Calcium Carbonate Chloride Chromium (VI) Chromium Cobalt Copper Iron Reporting Units S.U. NTUs mg/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L mg/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L 15A NCAC 02L Standard 6.5-8.5 NE NE NE 1* 10 700 4* NE 700 2 NE NE 250 10 10 1* 1000 300 Sample ID Sample Collection Date Field Parameters Analytical Results Surficial MW-12S 09/10/2015 5.8 6.31 13 98 <1 <1 19 <1 13 <50 <1 1.77 <10 3.1 --- 3.23 1.02 <1 108 nn n 2 S i 2 i n 7 46-.9 -12 4-64 <4 <4 -1-6 <4 -1-2 E39 <4 1.56 <--I-9 3-.3 8.943 747 <4 <4 3-36 MW-12S 01/07/2016 5.8 9.89 11.1 220 <1 <1 11 <1 11.1 <50 <1 1.96 <5 3.1 0.038 1.43 <1 <1 178 MW-12S 04/06/2016 5.8 7.42 10.2 566 <1 <1 12 <1 10.2 <50 <1 1.19 <5 3.3 0.058 <1 <1 <1 338 MW-12S 07/11/2016 4.9 9.82 12.8 392 <1 <1 13 <1 12.8 <50 <1 2.89 <5 2.9 0.045 <1 <1 1.9 385 nn nT ry v 12 S n n i n v 5-8 9.24 9-5 2-84 <4 <4 -1z <4 9-.5 E39 <4 1.56 E3 3r. 2 8.16 <4 <4 <4 2-7-9 MW-12S 11/04/2016 5.6 9.12 9.2 200 <1 <1 11 <1 9.2 <50 <1 1.14 B1 <5 3.1 0.088 <1 <1 1.08 245 M �nr W 12 S i 2 i n v 5-3 9.97 -1-3 324 <4 <4 & <4 -1-3 -< 9 <4 2.12 -<- 5 2-.2 0.96 <4 <4 2.22 32-2 MW-12S 02/01/2017 6.5 8.53 23.8 361 <1 1.79 11 <1 23.8 <50 <1 7.n� 07 B2 <5 0.36 5-.-7 1.61 1.65 9.46 3240 Transition Zone BG-02 07/11/2011 6.3 9.2 --- 298 <0.5 <5 64.8 B --- --- <50 <0.08 --- --- 32.6 B --- 10.2 --- --- --- BG-02 11/03/2011 6.3 5.63 --- 180 <0.5 <5 67.7 --- --- <50 <0.08 --- --- 32.9 --- 7.5 --- <5 312 BG-02 04/04/2012 6.3 5.55 --- <100 <0.5 <5 61.5 --- --- <50 <0.08 --- --- 32.6 --- <5 --- <5 152 BG-02 07/09/2012 6.3 9.47 --- 262 <0.5 <5 53.4 --- --- <50 <0.08 --- --- 35.3 --- 5.9 --- <5 460 BG-02 11/05/2012 6.3 9.02 --- 506 <0.5 <5 60.2 --- --- <50 <0.08 --- --- 33.3 --- 6 --- <5 759 BG-02 04/10/2013 6.3 8.5 --- 226 <1 <1 66 --- --- <50 <1 --- --- 28 --- <5 --- <5 646 BG-02 07/09/2013 6.4 8.08 --- 412 <1 <1 69 --- --- <50 <1 --- --- 30 --- <5 --- <5 1130 BG-02 11/13/2013 6.4 9.5 --- 384 <1 <1 62 --- --- <50 <1 --- --- 29 --- <5 --- <5 841 BG-02 04/01/2014 6.4 7.5 --- 316 <1 <1 71 --- --- <50 <1 --- --- 28 --- <5 --- <5 943 BG-02 07/18/2014 6.4 7.71 --- 355 <1 <1 65 --- --- <50 <1 --- --- 30 --- <5 --- <5 1010 BG-02 11/12/2014 6.3 5.33 --- 233 <1 <1 61 --- --- <50 <1 --- --- 30 --- <5 --- <5 647 BG-02 04/13/2015 6.3 7.09 259 136 <1 <1 54 <1 259 <50 <1 57 <5 28 --- <5 <1 <5 435 BG-02 07/07/2015 6.5 8.51 225 193 <1 <1 54 <1 225 <50 <1 56.1 <5 30 --- <5 <1 <5 467 BG-02 9/11/2015 6.4 6.88 220 82 <1 <1 50 <1 220 <50 <1 50.6 <10 32 -58 4.05 <1 <1 244 66-0 2 i 2 i n 5 6-.-4 5.24 257 M ! <1$9 E$S <0.5 68 <0.2 2 2 -9 E$$8 57.2 M_ -<-5 29.2 E$$3 E$S B E$S -<4 4-.59 BG-02 01/08/2016 6.4 1.98 263 80 <1 <1 58 <1 263 <50 <1 57.3 <5 33 <0.03 <1 <1 1.21 471 BG-02 04/04/2016 6.4 2.71 303 65 <1 <1 65 <1 303 <50 <1 59.2 <5 30 <0.03 <5 <1 <5 585 BG-02 07/13/2016 6.2 3.4 302 58 <1 <1 59 <1 302 <50 <1 59.9 <5 30 <0.03 <5 <1 <5 484 BG 02 n n i n v 6-.-7 2-.9 2 2 4 <4 < 59 <4 2 2 -<5 -<4 56.4 -<- -33 <$$3 < < < 553 BG-02 11/02/2016 6.3 5.07 240 59 <1 <1 48 <1 240 <50 <1 51.3 <5 34 <0.03 <1 <1 <1 213 BG-02 01/30/2017 6.6 9.68 228 82 <1 <1 43 <1 228 <50 <1 50 B2 <5 33 0.055 <1 <1 <1 184 MW-12D 06/24/2015 6.2 4.02 53 184 1.63 <1 26 <1 53 <50 <1 12.6 <10 4 --- <1 1.32 <1 326 MW-12D 09/10/2015 6.2 3.88 57 220 <1 <1 20 <1 57 <50 <1 11.7 <10 4.1 --- 1.1 <1 <1 277 MWn 2DD 12iO4/2015 6. 8.08 53.2 4 9 <0.5 <0.5 2$ <0.2 53.2 -< 9 0.099 ii.S -<- 3-.-2 0064 M! 46 0.5i <4 2$9 MW-12D 01/07/2016 6.1 9.26 53.5 678 <1 <1 22 <1 53.5 <50 <1 11.7 <5 4.5 0.52 M1 2.99 <1 1.54 968 MW-12D 04/05/2016 5.9 9.9 55.1 370 <1 <1 21 <1 55.1 <50 <1 11.4 <5 4.5 0.6 1.64 <1 <1 385 MW-12D 07/11/2016 5.7 9.35 56.3 155 <1 <1 17 <1 56.3 <50 <1 11.5 <5 4.4 0.73 1.19 <1 <1 223 MWn 2DD nnin v 6-.-3 9-.2 55.5 2 2 < < -1-6 <4 53.5 -<5 -<4 io.9 <-5 48 8.75 2.99 <4 <4 40-9 MW-12D 11/04/2016 6.3 9.09 55 272 <1 <1 16 <1 55 <50 <1 10.6 B1 <5 4 0.64 1.92 <1 <1 405 M W n 2 DD n 2 i 0 T 6.4 8.42 54.9 4-1-5 < < -1-4 <4 54.9 -<4 ' "�2 <-5 3-.8 0.69 i.39 <4 <4 2-43 r--M -w- 12D 03/28/2017 5.9 5.7 54.3 140 <1 <1 15 <1 54.3 <50 <1 12.1 <5 4.3 0.63 1.25 <1 1.24 24:2:::::] C:\Users\bjstrickland\AppData\Local\Temp\Table 1 - Mayo BTV GW_597488\Table 1 - Mayo BTV GW.xlsx Page 1 of 4 TABLE 1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Analytical Parameter Lead Magnesium Manganese Mercury Methane Molybdenum Nickel Nitrate + Nitrite Potassium Selenium Sodium Strontium Sulfate Sulfide TDS Thallium TOC Vanadium Zinc Radium (Total) Uranium (Total) Reporting Units ug/L mg/L ug/L ug/L ug/L ug/L ug/L mg-N/L mg/L ug/L mg/L ug/L mg/L mg/L mg/L ug/L mg/L ug/L ug/L pCi/L ug/mL 15A NCAC 02L Standard 15 NE 50 1 NE NE 100 NE NE 20 NE NE 250 NE 500 0.2* NE 0.3* 1000 NE NE Sample ID CoSample llection Date Analytical Results Saprolite MW-12S 09/10/2015 <1 0.723 253 <0.05 12 <1 2.98 0.7 1.53 <1 5.43 23 1.4 <0.1 55 <0.2 0.633 <0.3 64 --- --- M2s i 2 i n <4 0.792 4-52 E$$3 �9 <4 5.4 i 0.638 �4 <4 5.08 24 �3 <0.1 2-6 E$2 9.5i9 9.313 7-9 - MW-12S 01/07/2016 <1 0.753 68 <0.05 <10 <1 1.6 0.599 1.58 <1 4.76 18 1.4 <0.1 35 <0.2 1.6 <0.3 157 --- --- MW-12S 04/06/2016 <1 0.749 24 <0.05 <10 <1 <1 0.798 1.22 <1 5.49 17 1.2 <0.1 29 <0.2 0.522 0.408 43 3.537 0.000367 MW-12S 07/11/2016 <1 0.694 34 <0.05 <10 <1 1.16 0.566 1.89 <1 4.34 21 1.6 <0.1 43 <0.2 2 0.974 227 2 0.00035 M2s nnin v <4 0.64 14 E0.05 �9 <4 <4 9.756 1.36 <4 4.78 -16 �� E0-1 32 <0.2 9.63 8.711 4449 2.36 9.00035 MW-12S 11/04/2016 <1 0.661 B1 19 <0.05 <10 <1 1.19 0.739 1.35 <1 4.85 B2 16 0.89 <0.1 52 <0.2 0.53 0.593 73 2 0.00035 Mw i2s inin v <4 9.22 2-2 <0.03 <10 HS 1$3 i.22 0.4i9 2.33 <4 4.06 -14 2-.3 <0-1 67 <0.2 3-.6 0.698 64 B2 i.54 0.nnv o002338 MW-12S 02/01/2017 2.41 iAf 211 <0.05 36 N2 3.15 3.03 <0.01 3.78 <1 n.o 566 B2 25 1.6 <0.1 85 <0.2 B5 9 90 2 0.000262 Transition Zone BG-02 07/11/2011 <5 --- 64.2 <0.2 --- --- 9.4 B --- --- <10 --- --- 7.2 B --- 367 B <0.1 --- --- <10 BG-02 11/03/2011 <5 --- 36.7 <0.2 --- --- 5.2 --- --- <10 --- --- 6.9 --- 341 <0.1 --- --- <10 BG-02 04/04/2012 <5 --- 27 <0.2 --- --- <5 --- --- <10 --- --- 7.5 --- 412 <0.1 --- --- <10 BG-02 07/09/2012 <5 --- 54.9 <0.2 --- --- <5 --- --- <10 --- --- 7.7 --- 382 <0.1 --- --- <10 BG-02 11/05/2012 <5 --- 43.7 <0.2 --- --- <5 --- --- <10 --- --- 8.3 --- 389 <0.1 --- --- <10 BG-02 04/10/2013 <1 --- 111 0.18 --- --- <5 --- --- <1 --- --- 5.4 --- 430 <0.2 --- --- <5 BG-02 07/09/2013 <1 --- 248 0.11 --- --- <5 --- --- <1 --- --- 5.2 --- 430 <0.2 --- --- <5 BG-02 11/13/2013 <1 --- 177 0.11 --- --- <5 --- --- <1 --- --- 5.2 --- 360 <0.2 --- --- <5 BG-02 04/01/2014 <1 --- 226 0.06 --- --- <5 --- --- <1 --- --- 4.8 --- 450 <0.2 --- --- 8 BG-02 07/18/2014 <1 --- 244 0.08 --- --- <5 --- --- <1 --- --- 4.9 --- 400 <0.2 --- --- 5 BG-02 11/12/2014 <1 --- 180 <0.05 --- --- <5 --- --- <1 --- --- 5 --- 370 <0.2 --- --- 8 BG-02 04/13/2015 <1 11.8 150 0.06 --- <1 <5 --- 3.27 <1 49.7 --- 4.8 --- 380 <0.2 --- --- 11 BG-02 07/07/2015 <1 12 135 <0.05 --- <1 <5 --- 3.61 <1 48.2 --- 5.1 --- 370 <0.2 --- 5.88 15 BG-02 9/11/2015 <1 10.6 130 <0.05 400 <1 2.87 0.019 3.56 <1 44.6 291 5.4 <0.1 330 <0.2 1.4 4 33 66-0 2 i 2 / n s <0.1 12.3 2$0 <0.2 660 9.74 082 E$$2 -<-5 E$3 51.3 390 3-.1- <$1 3-1-4 <0.1 5-.8 42 BG-02 01/08/2016 <1 12.6 196 <0.05 477 <1 <1 <0.01 3.4 <1 50.6 350 5.5 <0.1 370 <0.2 1.3 4.2 <5 BG-02 04/04/2016 <1 13.9 237 <0.05 1130 <1 <5 --- 3.34 <1 56 391 4.9 <0.1 360 <0.2 1.8 5 <5 7.07 0.00117 BG-02 07/13/2016 <1 13.5 207 <0.05 2260 <1 <5 <0.01 3.23 <1 53.3 374 4.9 <0.1 370 <0.2 1.6 4.79 <5 7.52 0.001068 BG 02 nnin v <4 13.1 4-94 <$$5 1620 <4 <4 <$$1 3.31 <4 53.5 37-8 5-.6 <$1 37$ <0.2 �6 3.34 -<5 1.997 n no-�0094z BG-02 11/02/2016 <1 10.8 131 <0.05 1120 N2 <1 <1 0.02 3.48 <1 45.3 320 5.6 <0.1 330 H1 <0.2 1.4 3.63 <5 3.36 0.001005 BG-02 01/30/2017 <1 10.6 104 <0.05 801 N2 <1 <1 <0.01 3.48 <1 44 B2 287 5.6 <0.1 320 <0.2 1.4 4.14 B2 <5 2 0.001076 MW-12D 06/24/2015 <1 3.44 683 <0.05 <10 i.75 2.5 0.08 1.6 <1 8.98 95 0.96 <0.1 120 <0.2 0.396 0.719 <5 MW-12D 09/10/2015 <1 3.04 218 <0.05 <10 <1 1.35 0.664 1.41 <1 9.03 85 0.99 <0.1 100 <0.2 1.7 0.637 9 MWn 2DD i 2ii n s <0.1 3.24 4-60 <0.2 <�0 0-8 3-.7 OAS H' <0.5 9.56 &5 <4 <$1 4-2-2 <$1 <4 <4 <I-0 MW-12D 01/07/2016 <1 3.28 131 <0.05 <10 <1 2.23 0.139 1.39 <1 8.76 87 1.1 <0.1 82 <0.2 0.184 1.65 5 MW-12D 04/05/2016 <1 3.27 100 <0.05 <10 <1 1.49 0.146 1.42 <1 9.35 92 1.1 <0.1 120 <0.2 0.314 1.06 <5 9 0.000383 MW-12D 07/11/2016 <1 3.16 81 <0.05 17.9 <1 1.23 0.176 1.36 <1 9.26 88 1.1 <0.1 98 <0.2 0.276 0.898 6 3.62 0.0002419 M W n 2 DD n n i n v <4 3.02 64 <$$5 i9.4F <4 2.02 0.i8 i.34 <4 9.05 &3 �� <$1 4$0 <0.2 0.289 1.13 5 3-A-9 n n�6 MW-12D 11/04/2016 <1 2.97 B1 56 <0.05 28.5 N2 <1 1.37 0.166 1.37 <1 8.39 B2 85 1.1 <0.1 110 <0.2 0.171 1.25 <5 1.659 0.000318 M W n 2 DD n 2 i 0 T <4 2-.8 96 <$$5 71 N2 <4 1.62 0.i9 1.22 <4 8.18 B2 83 1 <$1 4--l-0 <0.2 B5 0.366 0.874 <-5 1.835 0.000296 MW-12D 03/28/2017 <1 3.2 45 <0.05 <10 <1 1.29 0.19 1.41 <1 9.26 85 1.1 <0.1 <0.2 96 0.192 B3 0.805 <5 5.68 0.000273 C:\Users\bjstrickland\AppData\Local\Temp\Table 1 - Mayo BTV GW_597488\Table 1 - Mayo BTV GW.xlsx Page 2 of 4 TABLE 1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Analytical Parameter pH Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Boron Cadmium Calcium Carbonate Chloride Chromium (VI) Chromium Cobalt Copper Iron Reporting Units S.U. NTUs mg/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L mg/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L 15A NCAC 02L Standard 6.5-8.5 NE NE NE 1* 10 700 4* NE 700 2 NE NE 250 10 10 1* 1000 300 Sample ID Sample Collection Date Field Parameters Analytical Results Bedrock BG-01 11/3/2011 5.5 3.84 - 216 <0.5 <5 95.4 - - <50 0.2 - - 13.1 - 7.9 - <5 261 BG-01 04/04/2012 5.6 9.52 - 191 <0.5 <5 93 - - <50 0.12 - - 14.3 - 6.7 - <5 388 BG-01 07/09/2012 5.3 9.32 - 478 <0.5 <5 101 - - <50 0.13 - - 14.6 - 29 - <5 640 BG-01 11/05/2012 5.4 9.45 - 465 <0.5 <5 101 - - <50 0.089 - - 13.4 - <5 - <5 526 BG-01 04/10/2013 5.2 9.05 - 202 <1 <1 97 - - <50 <1 - - 13 - 7 - <5 323 BG-01 07/09/2013 5.4 8.95 - 383 <1 <1 97 - - <50 <1 - - 13 - <5 - <5 488 BG-01 11/13/2013 5.5 8.2 - 339 <1 <1 95 - - <50 <1 - - 12 - <5 - <5 412 BG-01 04/01/2014 5.4 8.2 - 202 <1 <1 90 - - <50 <1 - - 12 - <5 - <5 290 BG-01 07/18/2014 5.5 6.68 - 245 <1 <1 93 - - <50 <1 - - 12 - <5 - <5 325 BG-01 11/12/2014 5.5 9.96 - 332 <1 <1 95 - - <50 <1 - - 12 - <5 - <5 466 BG-01 04/13/2015 5.5 8.9 49.8 392 <1 <1 90 <1 49.8 <50 <1 12.5 <5 11 - <5 <1 <5 409 BG-01 07/07/2015 5.6 10 48.3 418 <1 <1 97 <1 48.3 <50 <1 13.1 <5 11 - <5 <1 <5 557 BG-01 09/10/2015 5.3 7.83 54 276 <1 <1 91 <1 54 <50 <1 12.8 <10 11 - <1 <1 <1 300 BG 01 i i in 5 �9 4.79 32.1 -33 -<4 9$ 32.1 E39 4- - - CZ -<4 4-5 BG 01 i 2 / n 5 _ _ 52.8 2-S0 E$3 - - - . <30 12.6 0.31 1 E$3 3-50 BG-01 01/08/2016 5.1 5.78 51.1 227 <1 <1 87 <1 51.1 <50 <1 12.6 <5 12 0.2 <1 <1 <1 272 BG-01 04/04/2016 5.5 4.3 53 177 <1 <1 88 <1 53 <50 <1 12.1 <5 11 0.19 M1 <5 <1 <5 190 BG-01 07/13/2016 5.0 3.84 53.1 66 <1 <1 86 <1 53.1 <50 <1 12.3 <5 12 0.23 <5 <1 <5 89 BG 01 09i06 -..5 9.49 2..9 2-7-3 9$ <4 2.9 E39 -1z 0-3 <4 3. -3 BG-01 11/02/2016 5.5 2.98 52.8 48 <1 <1 90 <1 52.8 <50 <1 12.4 <5 11 0.23 <1 <1 <1 50 BG 01 0 2 i 0 T ram. 6 i.37 52.8 2-34 <4 52.8 E30 <4 12.2 E3 0.29 2$0 BG-01 03/28/2017 5.4 0.47 53 218 <1 <1 87 <1 53 <50 <1 12.9 <5 11 0.25 <1 <1 <1 137 MW-13BR 06/23/2015 7.2 2.22 210 37 <1 <1 40 <1 210 <50 <1 75.2 <10 46 - <1 1.19 <1 1130 MW-13BR 09/08/2015 6.9 7.55 230 143 131 <1 <1 51 <1 230 <50 <1 73 <10 43 - <1 <1 <1 2400 M � nT ry v 3 BR i 2 i n 5 �g &.-5 2-19 4-74 4-5 <4 2-19 -9 <4 72.7 -<� 4� E$$5 <4 2490 MW-13BR 01/07/2016 7.3 7.79 223 M1 230 <1 <1 42 <1 223 <50 <1 73.3 <5 45 <0.03 7.65 <1 <1 2550 MW-13BR 04/05/2016 7.1 9.05 217 97 <1 <1 35 <1 217 <50 <1 70.8 <5 43 <0.03 <1 1.01 <1 1750 MW-13BR 07/11/2016 7.0 8.8 211 407 <1 <1 29 <1 211 <50 <1 70.2 <5 40 <0.03 4.51 1.92 1.95 1330 M3R 0 9 i n v 7-.4 9.67 216 4-34 -38 <4 216 -9 E 69-7 E -38 E$$5 i. i7 <4 29 MW-13BR 11/08/2016 6.9 9.9 221 102 <1 <1 35 <1 221 <50 <1 67 <5 37 0.18 3.58 2.02 <1 2430 M�nTrvv 3B 02i0 T -1- 2-1-3 94 34 <4 2-1-3 -9 E & E -34 0.26 2.91 <4 2929 MW-14BR 03/12/2015 6.7 35 96 589 <1 <1 30 <1 96 <50 <1 19.5 <10 9.3 - <1 1.41 4.5 907 MW-14BR 09/09/2015 6.9 3.36 160 61 <1 1.8 42 <1 160 fry <1 20.2 <10 11 - <1 1.09 <1 2730 M W n 4 B i 2 i 0 i� 7-7 <4 22 <4 4-0-G E 59 E i3AF -<� 1 <0.03 <4 <4 396 MW-14BR 01/07/2016 6.7 2.45 94.8 163 <1 <1 17 <1 94.8 <50 <1 13 <5 13 <0.03 <1 <1 1.21 98 MW-14BR 04/05/2016 6.7 2.45 104 225 <1 <1 19 <1 104 <50 <1 13 <5 13 <0.03 <1 <1 1.87 89 MW-14BR 07/11/2016 6.7 1.34 130 58 <1 <1 22 <1 130 <50 <1 14.4 <5 13 <0.03 <1 <1 1.58 37 09/07 201 i s 3 nnn MW-14BR 11/08/2016 7.0 3.74 136 129 <1 <1 28 <1 136 <50 <1 16.2 <5 13 <0.025 <1 1.14 1.97 172 MW-14BR 02/02/2017 6.7 1.14 121 63 <1 <1 19 <1 121 <50 <1 28.9 <5 13 0.067 <1 <1 1.36 37 Prepared by: LWD Checked by: Notes: -4 - Indicates value omitted from dataset. - Indicates parameter not measured or analyzed. - Indicates data removed /identified as an outlier. - Indicates data removed due to autocorrelation. mg - N/L - Milligrams nitrogen per liter pCi/L - picocuries per liter mg/L - Milligrams per liter S.U. - Standard Unit NE - Not established ug/L - Micrograms per liter NTU - Nephelometric turbidity unit ug/mL - micrograms per milliliter < - concentration not detected at or above the reporting limit. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. 131 - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample was greater than 10X the concentration in the method blank. Analyte concentration in sample is not affected by blank contamination. B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes. B5 - Target analyte was present in blank(s) above the method detection limit but less than the reporting limit. Data is valid for compliance purposes. HS - Results are from sample aliquot taken from VOA vial with headspace (air bubble greater than 6 mm diameter). C:\Users\bjstrickland\AppData\Local\Temp\Table 1 - Mayo BTV GW_597488\Table 1 - Mayo BTV GW.xlsx Page 3 of 4 TABLE 1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Analytical Parameter Lead Magnesium Manganese Mercury Methane Molybdenum Nickel Nitrate + Nitrite Potassium Selenium Sodium Strontium Sulfate Sulfide TDS Thallium TOC Vanadium Zinc Radium (Total) Uranium (Total) Reporting Units ug/L mg/L ug/L ug/L ug/L ug/L ug/L mg-N/L mg/L ug/L mg/L ug/L mg/L mg/L mg/L ug/L mg/L ug/L ug/L pCi/L ug/mL 15A NCAC 02L Standard 15 NE 50 1 NE NE 100 NE NE 20 NE NE 250 NE 500 0.2* NE 0.3* 1000 NE NE Sample ID Sample Collection Date Analytical Results Bedrock BG-01 11/03/2011 <5 - 8.9 <0.2 - - 6.2 - - <10 - - <5 - 106 <0.1 - - <10 - - BG-01 04/04/2012 <5 - 11.6 <0.2 - - <5 - - <10 - - <5 - 107 <0.1 - - <10 - - BG-01 07/09/2012 <5 - 21.6 <0.2 - - 9.4 - - <10 - - 2 - 128 <0.1 - - <10 - - BG-01 11/05/2012 <5 - 55.6 <0.2 - - <5 - - <10 - - <2 - 123 <0.1 - - 11.6 - - BG-01 04/10/2013 <1 - 15 <0.05 - - <5 - - <1 - - 0.44 - 130 <0.2 - - 7 - - BG-01 07/09/2013 <1 - 48 <0.05 - - <5 - - <1 - - 0.52 - 130 <0.2 - - 12 - - BG-01 11/13/2013 <1 - 27 <0.05 - - <5 - - <1 - - 0.51 - 130 <0.2 - - 30 - - BG-01 04/01/2014 <1 - 14 <0.05 - - <5 - - <1 - - 0.4 - 140 <0.2 - - 29 - - BG-01 07/18/2014 <1 - 15 <0.05 - - <5 - - <1 - - 0.46 - 140 <0.2 - - 16 - - BG-01 11/12/2014 <1 - 25 <0.05 - - <5 - - <1 - - 0.51 - 120 <0.2 - - 34 - - BG-01 04/13/2015 <1 3.35 35 <0.05 - <1 <5 - 1.4 <1 12.4 - 0.32 - 130 <0.2 - - 29 - - BG-01 07/07/2015 <1 3.63 23 <0.05 - <1 <5 - 1.5 <1 11.8 - 0.32 - 130 <0.2 - 4.94 50 - - BG-01 09/10/2015 <1 3.41 26 <0.05 <1 1.78 0.645 1.38 <1 11.6 172 0.37 <0.1 120 <0.2 0.913 3.93 17 - - BG 01 n i 33.. 28 � E9.0 5 - �.5 P n -) �9 0.36 - �9 < 0 2 - -3-4 - - i 2 in 5 48 <0.2 _ _ 0.66 -<-5 4&G <0.1 .1. <$1 4 - - BG-01 01/08/2016 <1 3.36 11 <0.05 <10 <1 1.24 0.643 1.39 <1 11.9 166 0.24 <0.1 130 <0.2 0.558 3.94 <5 - - BG-01 04/04/2016 <1 3.2 12 <0.05 <10 <1 <5 - 1.36 <1 11.5 167 0.25 <0.1 130 <0.2 0.738 3.94 7 5.25 0.00035 BG-01 07/13/2016 <1 3.09 7 <0.05 <10 <1 <5 0.827 1.28 <1 11.9 177 0.23 <0.1 140 <0.2 0.723 3.58 <5 2.29 0.00035 BG 01 nn in 6 3.1 <0.05 -9 0.828 1.32 ii.7 4-7-2 0.32 <$1 4-39 <$2 0.667 4.69 3$76 0.00035 BG-01 11/02/2016 <1 3.18 8 <0.05 <10 N2 <1 1.82 0.811 1.31 <1 11.4 183 0.26 <0.1 110 1-11 <0.2 0.565 3.82 <5 6.24 0.00035 BG 01 02i0 T 349 -1-3 <$$.5 <10 "N2 8.809 i.35 <4 11.2 4-74 0.26 <$1 4-49 <-0.2 0.7$5 ^.3� �4 B5 3 0."�3 BG-01 03/28/2017 <1 3.28 10 <0.05 <10 <1 1.41 0.834 1.38 <1 12.5 173 0.25 <0.1 120 <0.2 0.64 B3 4 <5 2.862 0.00035 MW-13BR 06/23/2015 <1 13.1 474 <0.05 <10 8.28 <1 <0.01 5.49 <1 25.7 418 18 GAis 370 <0.2 0.9 0.381 36 4.22 0.00035 MW-13BR 09/08/2015 <1 12.9 630 <0.05 <10 5.17 <1 <0.01 M2 5.31 <1 24.8 430 12 <0.1 360 0.538 0.859 0.465 9-9 - - M W 13 1 2 i n 5 13.5 348 <0.05 <4 5.86 797 <$$1 3$9 <4 23.3 4-1-6 -1-4 < 0 . 33G <$2 0.761 0.429 34 - MW-13BR 01/07/2016 <1 12.9 519 <0.05 25.9 5.81 4.98 <0.01 5.12 <1 23.7 389 15 <0.1 330 <0.2 0.647 <0.3 37 - - MW-13BR 04/05/2016 <1 12.9 481 <0.05 37 4.3 <1 <0.01 4.72 <1 20.8 393 17 <0.1 340 <0.2 0.733 <0.3 9 5.65 0.00644 MW-13BR 07/11/2016 <1 13 348 <0.05 34.6 3.2 2.82 <0.01 4.72 <1 19.4 380 18 <0.1 330 <0.2 0.594 0.871 23 3.103 n nv 00203 M�nrvvi3 nnin v YCT 432 <0.05 4-3-5 2.98 1.68 <$$1 E 4-F 384 46 <0. 33G - - - nv 5 <0.3 -" 68.2 8.000694 MW-13BR 11/08/2016 <1 12.3 471 <0.05 99.6 N2 2.85 2.26 <0.01 4.46 <1 17.3 374 15 <0.1 310 <0.2 0.574 0.38 6 1.392 0.000569 MW i3 02i0 T 434 <$.05 55 N2 3.5 i.39 <$$1 4.43 E 16.8 35' 3 4-5 <$1 32G <� 0.458 0.496 F. 3$1 0.000617 MW-14BR 03/12/2015 <1 2.96 544 <0.05 <10 14 <1 0.039 4.08 <1 33 149 12 190 <0.2 1.3 1.29 10 - - MW-14BR 09/09/2015 <1 3.07 648 <0.05 43 37.3 <1 0.011 M2 6.56 <1 60.2 167 27 <0.1 260 <0.2 1.3 0.469 <5 - - M � nr rv-v i 4 1 2 i n 5 329 304 <0.05 <49 662 <4 0.442 5.75 E 41.6 4-4. -4-n 3-1-9 <$2 0.822 1$2 -<- - MW-14BR 01/07/2016 <1 2.36 199 <0.05 <10 4.56 <1 0.384 4.49 <1 37.4 131 10 <0.1 180 <0.2 0.855 2.45 <5 - - MW-14BR 04/05/2016 <1 2.36 196 <0.05 <10 5.06 <1 0.346 4.06 <1 38.4 134 9.9 <0.1 200 <0.2 0.873 2.86 <5 3.999 0.000391 MW-14BR 07/11/2016 <1 2.51 247 <0.05 <10 8.07 <1 0.157 5.18 <1 47.9 140 11 <0.1 200 <0.2 0.84 2.48 11 1.947 0.000606 M�nrvv i4l nnin v 2.57 <0.05 <49 9.57 <4 849i 743 4-68 <-0.2 8.887 2.$7 3 -3 8.000464 MW-14BR 11/08/2016 <1 2.64 385 <0.05 "�2 10.7 <1 0.187 6.78 <1 49.9 158 9.6 <0.1 220 <0.2 0.785 1.56 6 2.07 0.000539 MW-14BR 02/02/2017 <1 13.1 96 <0.05 <10 N2 5.04 <1 0.291 4.04 <1 38.4 150 8.6 <0.1 200 <0.2 0.832 2.07 <5 2 0.000355 Prepared by: LWD Checked by: Notes: -4 - Indicates value omitted from dataset. - Indicates parameter not measured or analyzed. - Indicates data removed /identified as an outlier. - Indicates data removed due to autocorrelation. mg - N/L - Milligrams nitrogen per liter pCi/L - picocuries per liter mg/L - Milligrams per liter S.U. - Standard Unit NE - Not established ug/L - Micrograms per liter NTU - Nephelometric turbidity unit ug/mL - micrograms per milliliter < - concentration not detected at or above the reporting limit. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. 131 - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample was greater than 10X the concentration in the method blank. Analyte concentration in sample is not affected by blank contamination. B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes. B5 - Target analyte was present in blank(s) above the method detection limit but less than the reporting limit. Data is valid for compliance purposes. HS - Results are from sample aliquot taken from VOA vial with headspace (air bubble greater than 6 mm diameter). C:\Users\bjstrickland\AppData\Local\Temp\Table 1 - Mayo BTV GW_597488\Table 1 - Mayo BTV GW.xlsx Page 4 of 4