Loading...
HomeMy WebLinkAboutNC0002468_FINAL_CSA Sup 2_Tables_20160901Ta b l e  1 ‐1:  We l l  Co n s t r u c t i o n  In f o r m a t i o n Mo n i t o r i n g We l l  ID ‐ Mo n i t o r i n g We l l  Ty p e ‐ No r t h i n g ft Ea s t i n g ft TO C El e v a t i o n ft  bt o c Ca s i n g St i c k ‐up ft Ca s i n g Ty p e Ca s i n g Di a m e t e r in To p  of Sc r e e n ft  bt o c Bo t t o m  of Sc r e e n ft  bt o c Total Depth ft  btocProgram AB ‐10 D D e e p 9 9 8 , 2 4 2 . 1 0 1 , 7 9 0 , 1 5 1 . 2 9 5 3 9 . 4 2 ‐0. 2 4 P V C 6 . 0 0 7 6 . 7 6 8 1 . 7 6 8 2 . 0 6 C A M A AB ‐10 S S h a l l o w 9 9 8 , 2 3 6 . 2 5 1 , 7 9 0 , 1 6 2 . 1 4 5 3 9 . 4 4 ‐0. 2 1 P V C 2 . 0 0 1 4 . 7 9 2 9 . 7 9 3 0 . 0 9 C A M A AB ‐10 S L S h a l l o w 9 9 8 , 2 3 9 . 0 0 1 , 7 9 0 , 1 5 6 . 7 1 5 3 9 . 4 2 ‐0. 2 3 P V C 2 . 0 0 4 2 . 7 7 4 7 . 7 7 4 8 . 0 7 C A M A AB ‐25 B R B e d r o c k 9 9 7 , 1 1 5 . 8 4 1 , 7 8 9 , 3 4 7 . 5 3 5 4 2 . 9 0 3 . 4 7 P V C 6 . 0 0 1 4 7 . 4 7 1 5 2 . 4 7 1 5 2 . 7 7 C A M A AB ‐25 D D e e p 9 9 7 , 1 2 5 . 3 5 1 , 7 8 9 , 3 4 2 . 4 4 5 4 2 . 9 7 3 . 5 0 P V C 6 . 0 0 8 5 . 5 0 9 0 . 5 0 9 0 . 8 0 C A M A AB ‐25 S S h a l l o w 9 9 7 , 1 2 0 . 6 5 1 , 7 8 9 , 3 4 5 . 1 3 5 4 2 . 8 7 3 . 5 0 P V C 2 . 0 0 3 3 . 5 0 4 8 . 5 0 4 8 . 8 0 C A M A AB ‐30 B R B e d r o c k 9 9 8 , 5 9 1 . 7 0 1 , 7 9 0 , 5 7 4 . 7 1 5 2 9 . 2 7 ‐0. 3 6 P V C 6 . 0 0 1 0 8 . 6 4 1 1 3 . 6 4 1 1 3 . 9 4 C A M A AB ‐30 D D e e p 9 9 8 , 5 9 5 . 5 9 1 , 7 9 0 , 5 7 9 . 2 4 5 2 9 . 4 7 ‐0. 2 0 P V C 6 . 0 0 5 3 . 8 0 5 8 . 8 0 5 9 . 1 0 C A M A AB ‐30 S S h a l l o w 9 9 8 , 5 8 7 . 8 3 1 , 7 9 0 , 5 7 0 . 1 1 5 2 9 . 3 4 ‐0. 3 3 P V C 2 . 0 0 1 4 . 6 7 2 9 . 6 7 2 9 . 9 7 C A M A AB ‐35 B R B e d r o c k 9 9 8 , 4 9 1 . 9 9 1 , 7 8 9 , 8 4 1 . 1 0 5 3 1 . 9 9 3 . 2 4 P V C 6 . 0 0 8 4 . 2 4 8 9 . 2 4 8 9 . 5 4 C A M A AB ‐5D D e e p 9 9 8 , 5 3 2 . 8 3 1 , 7 8 9 , 6 3 2 . 5 2 5 3 3 . 8 5 ‐0. 5 4 P V C 6 . 0 0 3 3 . 4 6 3 8 . 4 6 3 8 . 7 6 C A M A AB ‐5S S h a l l o w 9 9 8 , 5 2 7 . 3 1 1 , 7 8 9 , 6 2 9 . 9 3 5 3 4 . 0 0 ‐0. 2 1 P V C 2 . 0 0 6 . 7 9 2 1 . 7 9 2 2 . 0 9 C A M A AS ‐10 D D e e p 1 , 0 0 0 , 0 8 8 . 7 2 1 , 7 8 9 , 1 0 5 . 3 4 5 9 1 . 8 4 2 . 9 5 P V C 6 . 0 0 4 0 . 9 5 4 5 . 9 5 4 6 . 2 5 C A M A AS ‐12 S S h a l l o w 9 9 9 , 5 3 8 . 0 0 1 , 7 8 9 , 1 2 5 . 2 1 5 5 9 . 7 0 2 . 7 0 P V C 2 . 0 0 1 6 . 6 0 2 6 . 6 0 2 6 . 9 0 C A M A AS ‐2D D e e p 9 9 8 , 9 4 9 . 1 9 1 , 7 8 9 , 5 0 9 . 5 2 5 6 1 . 0 0 0 . 3 2 P V C 6 . 0 0 5 3 . 3 2 5 8 . 3 2 5 8 . 6 2 C A M A AS ‐4D D e e p 9 9 9 , 3 4 9 . 0 9 1 , 7 8 9 , 8 9 3 . 6 2 5 6 2 . 1 7 2 . 9 5 P V C 6 . 0 0 3 7 . 9 5 4 2 . 9 5 4 3 . 2 5 C A M A AS ‐6D D e e p 9 9 9 , 9 2 0 . 1 7 1 , 7 9 0 , 2 9 4 . 5 3 5 8 6 . 6 6 2 . 3 8 P V C 6 . 0 0 5 8 . 3 8 6 3 . 3 8 6 3 . 6 8 C A M A AS ‐8B R B e d r o c k 9 9 9 , 1 1 4 . 4 8 1 , 7 8 8 , 8 0 5 . 7 7 5 8 2 . 1 0 2 . 8 1 P V C 6 . 0 0 6 6 . 8 1 7 1 . 8 1 7 2 . 1 1 C A M A AS ‐8D D e e p 9 9 9 , 1 1 7 . 5 8 1 , 7 8 8 , 8 0 0 . 2 5 5 8 2 . 2 3 2 . 9 3 P V C 6 . 0 0 5 0 . 9 3 5 4 . 9 3 5 5 . 2 3 C A M A BG ‐10 B R B e d r o c k 1 , 0 0 1 , 7 7 0 . 2 3 1 , 7 8 8 , 8 6 4 . 3 8 5 9 8 . 5 9 2 . 9 0 P V C 5 . 0 0 1 2 . 9 0 2 7 . 9 0 2 8 . 4 0 C A M A BG ‐10 D D e e p 1 , 0 0 1 , 7 8 4 . 8 2 1 , 7 8 8 , 8 6 1 . 5 4 5 9 8 . 8 0 2 . 6 0 P V C 5 . 0 0 5 1 . 6 0 5 6 . 6 0 5 7 . 6 0 C A M A BG ‐10 S S h a l l o w 1 , 0 0 1 , 7 7 7 . 5 2 1 , 7 8 8 , 8 6 4 . 4 3 5 9 8 . 6 3 2 . 5 8 P V C 2 . 0 0 1 6 . 5 8 2 6 . 5 8 2 6 . 5 8 C A M A BG ‐1D D e e p 9 9 6 , 1 6 1 . 1 5 1 , 7 8 7 , 0 3 2 . 1 7 5 1 6 . 4 0 3 . 1 1 P V C 6 . 0 0 1 2 . 1 1 1 7 . 1 1 1 7 . 4 1 C A M A BG ‐5D D e e p 9 9 7 , 9 1 6 . 6 5 1 , 7 8 6 , 6 2 0 . 3 7 5 1 4 . 9 1 2 . 9 7 P V C 6 . 0 0 3 0 . 9 7 3 5 . 9 7 3 6 . 2 7 C A M A BG ‐5S S h a l l o w 9 9 7 , 9 1 6 . 9 1 1 , 7 8 6 , 6 2 5 . 4 4 5 1 5 . 2 4 2 . 9 8 P V C 2 . 0 0 1 3 . 4 8 2 3 . 4 8 2 3 . 7 8 C A M A GW A ‐10 D D e e p 9 9 8 , 6 5 5 . 4 3 1 , 7 8 9 , 2 3 2 . 0 0 5 5 3 . 5 6 3 . 3 7 P V C 6 . 0 0 3 6 . 3 7 4 1 . 3 7 4 1 . 6 7 C A M A GW A ‐10 S S h a l l o w 9 9 8 , 6 5 7 . 9 8 1 , 7 8 9 , 2 3 4 . 5 1 5 5 3 . 4 0 3 . 3 5 P V C 2 . 0 0 1 6 . 3 5 3 1 . 3 5 3 1 . 6 5 C A M A GW A ‐11 D D e e p 9 9 9 , 3 5 6 . 2 4 1 , 7 9 0 , 0 9 9 . 3 5 5 5 9 . 7 7 2 . 6 5 P V C 6 . 0 0 3 2 . 1 5 3 7 . 1 5 3 7 . 4 5 C A M A GW A ‐11 S S h a l l o w 9 9 9 , 3 6 3 . 8 4 1 , 7 9 0 , 1 0 6 . 5 0 5 6 0 . 1 3 2 . 5 8 P V C 2 . 0 0 1 2 . 5 8 2 7 . 5 8 2 7 . 8 8 C A M A GW A ‐12 D D e e p 9 9 9 , 3 6 5 . 5 7 1 , 7 8 7 , 1 7 5 . 7 2 5 8 4 . 4 5 2 . 3 9 P V C 6 . 0 0 2 9 . 3 9 3 4 . 3 9 3 4 . 6 9 C A M A GW A ‐12 S S h a l l o w 9 9 9 , 3 5 9 . 0 1 1 , 7 8 7 , 1 8 5 . 5 8 5 8 4 . 9 0 2 . 3 7 P V C 2 . 0 0 7 . 8 7 1 7 . 8 7 1 8 . 1 7 C A M A Pa g e  1  of  3 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐1:  We l l  Co n s t r u c t i o n  In f o r m a t i o n Mo n i t o r i n g We l l  ID ‐ Mo n i t o r i n g We l l  Ty p e ‐ No r t h i n g ft Ea s t i n g ft TO C El e v a t i o n ft  bt o c Ca s i n g St i c k ‐up ft Ca s i n g Ty p e Ca s i n g Di a m e t e r in To p  of Sc r e e n ft  bt o c Bo t t o m  of Sc r e e n ft  bt o c Total Depth ft  btocProgram GW A ‐14 D D e e p 9 9 9 , 2 0 4 . 0 2 1 , 7 9 1 , 0 6 3 . 3 1 5 0 0 . 1 9 3 . 4 9 P V C 6 . 0 0 1 4 . 9 9 1 9 . 9 9 2 0 . 2 9 C A M A GW A ‐14 S S h a l l o w 9 9 9 , 2 0 8 . 4 1 1 , 7 9 1 , 0 5 9 . 2 9 4 9 9 . 9 7 3 . 4 3 P V C 2 . 0 0 6 . 4 3 1 1 . 4 3 1 1 . 7 3 C A M A GW A ‐15 D D e e p 9 9 8 , 9 0 3 . 8 7 1 , 7 9 1 , 1 3 0 . 1 3 5 0 4 . 1 3 2 . 8 7 P V C 6 . 0 0 2 8 . 8 7 3 3 . 8 7 3 4 . 1 7 C A M A GW A ‐15 S S h a l l o w 9 9 8 , 9 0 6 . 1 9 1 , 7 9 1 , 1 2 5 . 4 3 5 0 4 . 2 1 3 . 2 5 P V C 2 . 0 0 1 0 . 7 5 1 5 . 7 5 1 6 . 0 5 C A M A GW A ‐16 D D e e p 9 9 8 , 9 7 4 . 4 8 1 , 7 9 1 , 3 0 2 . 0 0 5 0 4 . 7 3 2 . 5 5 P V C 5 . 0 0 3 1 . 5 5 3 6 . 5 5 4 1 . 9 5 C A M A GW A ‐16 S S h a l l o w 9 9 8 , 9 6 7 . 2 0 1 , 7 9 1 , 3 0 1 . 9 4 5 0 4 . 4 5 2 . 5 5 P V C 2 . 0 0 4 5 . 5 5 5 0 . 5 5 5 0 . 5 5 C A M A GW A ‐17 D D e e p 9 9 9 , 3 9 0 . 6 1 1 , 7 9 1 , 1 5 7 . 9 7 5 1 3 . 9 7 2 . 4 6 P V C 6 . 0 0 3 2 . 2 6 4 2 . 2 6 4 2 . 4 6 C A M A GW A ‐18 D D e e p 1 , 0 0 0 , 5 2 6 . 8 8 1 , 7 9 0 , 1 1 0 . 7 0 5 9 8 . 0 3 3 . 1 5 P V C 5 . 0 0 4 0 . 1 5 4 5 . 1 5 5 2 . 6 5 C A M A GW A ‐1D D e e p 1 , 0 0 0 , 4 3 5 . 3 6 1 , 7 8 9 , 5 0 1 . 2 6 6 0 1 . 5 8 2 . 7 7 P V C 6 . 0 0 1 1 6 . 7 7 1 2 1 . 7 7 1 2 2 . 0 7 C A M A GW A ‐1S S h a l l o w 1 , 0 0 0 , 4 3 4 . 3 5 1 , 7 8 9 , 5 0 8 . 4 4 6 0 1 . 3 9 2 . 5 6 P V C 2 . 0 0 3 2 . 5 6 4 7 . 5 6 4 7 . 8 6 C A M A GW A ‐20 D D e e p 9 9 6 , 6 3 1 . 6 3 1 , 7 8 9 , 4 9 4 . 6 3 5 1 1 . 9 5 2 . 9 3 P V C 5 . 0 0 2 6 . 9 3 3 1 . 9 3 3 1 . 9 3 C A M A GW A ‐20 S S h a l l o w 9 9 6 , 6 3 5 . 2 1 1 , 7 8 9 , 5 0 3 . 4 8 5 1 1 . 9 7 3 . 1 1 P V C 2 . 0 0 7 8 . 1 1 8 3 . 1 1 9 2 . 6 1 C A M A GW A ‐2D D e e p 1 , 0 0 0 , 1 9 4 . 1 0 1 , 7 9 0 , 1 4 4 . 6 7 5 8 8 . 0 4 2 . 9 9 P V C 6 . 0 0 5 8 . 9 9 6 3 . 9 9 5 1 . 2 9 C A M A GW A ‐2S S h a l l o w 1 , 0 0 0 , 1 9 2 . 1 6 1 , 7 9 0 , 1 4 2 . 8 1 5 8 7 . 5 7 2 . 6 0 P V C 2 . 0 0 1 8 . 6 0 3 3 . 6 0 3 3 . 9 0 C A M A GW A ‐3D D e e p 9 9 9 , 7 2 2 . 0 4 1 , 7 9 0 , 3 2 5 . 3 7 5 7 4 . 0 4 2 . 5 6 P V C 6 . 0 0 3 6 . 5 6 4 1 . 5 6 4 1 . 8 6 C A M A GW A ‐3S S h a l l o w 9 9 9 , 7 2 8 . 3 3 1 , 7 9 0 , 3 2 6 . 7 0 5 7 3 . 9 8 2 . 5 7 P V C 2 . 0 0 1 6 . 3 7 2 6 . 3 7 2 6 . 6 7 C A M A GW A ‐4D D e e p 9 9 9 , 1 7 8 . 3 5 1 , 7 9 0 , 8 4 8 . 0 8 5 2 7 . 2 0 3 . 1 1 P V C 6 . 0 0 4 6 . 1 1 5 1 . 1 1 5 1 . 4 1 C A M A GW A ‐4S S h a l l o w 9 9 9 , 1 7 5 . 1 1 1 , 7 9 0 , 8 4 3 . 5 7 5 2 7 . 8 7 3 . 2 2 P V C 2 . 0 0 2 3 . 2 2 3 8 . 2 2 3 8 . 5 2 C A M A GW A ‐5B R B e d r o c k 9 9 8 , 9 8 0 . 5 7 1 , 7 9 0 , 9 8 7 . 7 9 4 9 9 . 7 3 2 . 6 2 P V C 6 . 0 0 5 7 . 6 2 6 2 . 6 2 6 2 . 9 2 C A M A GW A ‐5B R D B e d r o c k 9 9 8 , 9 7 6 . 8 2 1 , 7 9 0 , 9 7 5 . 6 7 5 0 2 . 1 4 2 . 5 4 P V C 5 . 0 0 1 2 1 . 5 4 1 3 1 . 5 4 1 3 3 . 0 4 C A M A GW A ‐6D D e e p 9 9 6 , 6 8 8 . 5 1 1 , 7 8 8 , 7 3 8 . 2 5 5 0 1 . 2 0 ‐0. 7 5 P V C 6 . 0 0 2 8 . 2 5 3 3 . 2 5 3 3 . 5 5 C A M A GW A ‐6S S h a l l o w 9 9 6 , 6 9 1 . 5 8 1 , 7 8 8 , 7 4 2 . 7 4 5 0 1 . 4 8 ‐0. 3 8 P V C 2 . 0 0 8 . 6 2 1 8 . 6 2 1 8 . 9 2 C A M A GW A ‐7D D e e p 9 9 7 , 7 9 9 . 4 5 1 , 7 8 8 , 5 2 5 . 8 3 5 4 3 . 4 8 ‐0. 2 5 P V C 6 . 0 0 4 5 . 7 5 5 0 . 7 5 5 1 . 0 5 C A M A GW A ‐7S S h a l l o w 9 9 7 , 7 9 4 . 8 4 1 , 7 8 8 , 5 3 0 . 1 1 5 4 3 . 1 6 ‐0. 2 1 P V C 2 . 0 0 1 3 . 7 9 2 8 . 7 9 2 9 . 0 9 C A M A GW A ‐8D D e e p 9 9 9 , 2 4 5 . 0 7 1 , 7 8 7 , 8 7 5 . 9 3 5 8 4 . 0 1 2 . 1 8 P V C 6 . 0 0 3 7 . 1 8 4 2 . 1 8 4 2 . 4 8 C A M A GW A ‐8S S h a l l o w 9 9 9 , 2 3 5 . 7 8 1 , 7 8 7 , 8 7 9 . 4 3 5 8 3 . 8 7 2 . 3 7 P V C 2 . 0 0 8 . 3 7 2 3 . 3 7 2 3 . 6 7 C A M A GW A ‐9D D e e p 9 9 9 , 8 9 7 . 7 9 1 , 7 8 8 , 1 7 3 . 3 5 6 1 1 . 3 0 2 . 8 9 P V C 6 . 0 0 6 9 . 8 9 7 4 . 8 9 7 5 . 1 9 C A M A GW A ‐9S S h a l l o w 9 9 9 , 8 9 2 . 1 3 1 , 7 8 8 , 1 7 0 . 7 6 6 1 1 . 7 2 2 . 8 5 P V C 2 . 0 0 3 4 . 8 5 4 9 . 8 5 5 0 . 1 5 C A M A MW ‐22 B R B e d r o c k 9 9 6 , 9 2 4 . 8 7 1 , 7 8 9 , 2 8 1 . 9 6 5 0 2 . 3 2 ‐0. 2 9 P V C 6 . 0 0 5 7 . 7 1 6 2 . 7 1 6 3 . 0 1 C A M A MW ‐23 B R B e d r o c k 9 9 9 , 3 3 4 . 8 9 1 , 7 8 6 , 3 6 2 . 5 9 5 2 7 . 5 5 3 . 0 9 P V C 6 . 0 0 5 9 . 0 9 6 4 . 0 9 6 4 . 3 9 C A M A MW ‐30 1 B R B e d r o c k 1 , 0 0 0 , 0 8 5 . 2 1 1 , 7 8 9 , 7 2 4 . 7 6 5 9 3 . 5 5 3 . 2 1 P V C 6 . 0 0 4 0 . 2 1 4 5 . 2 1 4 5 . 5 1 C A M A Pa g e  2  of  3 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐1:  We l l  Co n s t r u c t i o n  In f o r m a t i o n Mo n i t o r i n g We l l  ID ‐ Mo n i t o r i n g We l l  Ty p e ‐ No r t h i n g ft Ea s t i n g ft TO C El e v a t i o n ft  bt o c Ca s i n g St i c k ‐up ft Ca s i n g Ty p e Ca s i n g Di a m e t e r in To p  of Sc r e e n ft  bt o c Bo t t o m  of Sc r e e n ft  bt o c Total Depth ft  btocProgram MW ‐30 3 B R B e d r o c k 9 9 9 , 8 2 7 . 7 9 1 , 7 8 9 , 6 6 9 . 9 9 6 5 1 . 3 7 3 . 0 1 P V C 6 . 0 0 1 4 0 . 0 1 1 4 5 . 0 1 1 4 5 . 3 1 C A M A MW ‐30 6 B R B e d r o c k 9 9 9 , 3 7 6 . 3 5 1 , 7 8 9 , 6 3 1 . 2 2 6 1 3 . 6 2 2 . 1 6 P V C 6 . 0 0 1 0 4 . 1 6 1 0 9 . 1 6 1 0 9 . 4 6 C A M A MW ‐30 8 B R B e d r o c k 9 9 8 , 6 4 9 . 5 1 1 , 7 8 9 , 6 8 9 . 6 1 5 3 2 . 5 9 2 . 1 3 P V C 6 . 0 0 7 9 . 1 3 8 4 . 1 3 8 4 . 4 3 C A M A MW ‐31 0 B R B e d r o c k 9 9 8 , 3 5 0 . 6 6 1 , 7 8 9 , 3 9 5 . 7 2 5 3 8 . 9 1 ‐0. 2 1 P V C 6 . 0 0 7 2 . 7 9 7 7 . 7 9 7 8 . 0 9 C A M A MW ‐31 1 B R B e d r o c k 9 9 7 , 7 1 5 . 0 7 1 , 7 8 9 , 9 2 2 . 0 8 5 3 7 . 7 3 1 . 5 2 P V C 6 . 0 0 1 2 1 . 5 2 1 2 6 . 5 2 1 2 6 . 8 2 C A M A MW ‐31 4 B R B e d r o c k 9 9 7 , 6 4 5 . 7 8 1 , 7 8 9 , 0 6 9 . 2 6 5 3 9 . 7 5 ‐0. 3 1 P V C 6 . 0 0 6 8 . 6 9 7 3 . 6 9 7 3 . 9 9 C A M A MW ‐31 5 B R B e d r o c k 9 9 8 , 7 0 7 . 1 3 1 , 7 8 9 , 0 8 0 . 4 5 5 7 0 . 7 5 3 . 2 3 P V C 6 . 0 0 6 2 . 9 3 7 7 . 9 3 7 8 . 2 3 C A M A MW ‐31 7 B R B e d r o c k 9 9 9 , 1 2 2 . 8 7 1 , 7 8 8 , 3 1 5 . 5 1 5 7 1 . 9 3 2 . 1 9 P V C 6 . 0 0 8 5 . 1 9 9 0 . 1 9 9 0 . 4 9 C A M A MW ‐31 7 B R L B e d r o c k 9 9 9 , 0 5 7 . 5 9 1 , 7 8 8 , 3 5 6 . 7 1 5 7 1 . 2 0 2 . 8 1 P V C 5 . 0 0 1 8 1 . 8 1 1 9 1 . 8 1 1 9 2 . 6 1 C A M A MW ‐31 8 D D e e p 9 9 9 , 0 6 6 . 8 1 1 , 7 8 9 , 1 2 7 . 5 2 5 6 7 . 2 1 2 . 6 2 P V C 6 . 0 0 4 7 . 1 2 5 2 . 1 2 6 2 . 4 2 C A M A MW ‐20 D D e e p 1 , 0 0 0 , 6 9 2 . 0 0 1 , 7 8 8 , 9 2 3 . 0 0 5 6 2 . 2 3 2 . 8 1 P V C 2 . 0 0 2 . 8 1 2 . 8 1 5 6 2 . 2 3 N P D E S MW ‐20 S S h a l l o w 1 , 0 0 0 , 6 9 1 . 0 0 1 , 7 8 8 , 9 1 8 . 0 0 5 6 2 . 2 8 2 . 5 7 P V C 2 . 0 0 2 . 5 7 2 . 5 7 5 6 2 . 2 8 N P D E S MW ‐21 D D e e p 9 9 8 , 9 7 4 . 1 0 1 , 7 9 0 , 9 9 6 . 0 0 4 9 8 . 9 0 2 . 6 7 P V C 2 . 0 0 2 . 6 7 2 . 6 7 4 9 8 . 9 0 N P D E S MW ‐21 S S h a l l o w 9 9 8 , 9 8 1 . 0 0 1 , 7 9 0 , 9 9 7 . 0 0 4 9 8 . 8 0 2 . 7 7 P V C 2 . 0 0 2 . 7 7 2 . 7 7 4 9 8 . 8 0 N P D E S MW ‐22 D D e e p 9 9 6 , 9 2 0 . 1 0 1 , 7 8 9 , 2 9 9 . 0 0 5 0 5 . 1 9 2 . 9 7 P V C 2 . 0 0 2 . 9 7 2 . 9 7 5 0 5 . 1 9 N P D E S MW ‐22 S S h a l l o w 9 9 6 , 9 1 7 . 4 0 1 , 7 8 9 , 2 9 2 . 0 0 5 0 4 . 5 2 2 . 4 7 P V C 2 . 0 0 2 . 4 7 2 . 4 7 5 0 4 . 5 2 N P D E S MW ‐23 D D e e p 9 9 9 , 3 3 0 . 0 0 1 , 7 8 6 , 3 6 6 . 0 0 5 2 8 . 2 2 3 . 2 4 P V C 2 . 0 0 3 . 2 4 3 . 2 4 5 2 8 . 2 2 N P D E S MW ‐10 S h a l l o w 9 9 8 , 0 4 8 . 0 0 1 , 7 9 0 , 2 5 1 . 0 0 5 3 1 . 8 1 1 . 9 3 P V C 2 . 0 0 1 . 9 3 1 . 9 3 5 3 1 . 8 1 V o l u n t a r y MW ‐10 D D e e p 9 9 8 , 0 4 8 . 0 0 1 , 7 9 0 , 2 5 1 . 0 0 5 3 1 . 8 0 1 . 9 2 P V C 2 . 0 0 1 . 9 2 1 . 9 2 5 3 1 . 8 0 V o l u n t a r y MW ‐11 S h a l l o w 9 9 8 , 6 6 4 . 0 0 1 , 7 9 0 , 6 9 8 . 0 0 5 3 1 . 1 6 1 . 9 9 P V C 2 . 0 0 1 . 9 9 1 . 9 9 5 3 1 . 1 6 V o l u n t a r y MW ‐11 D D e e p 9 9 8 , 6 6 4 . 0 0 1 , 7 9 0 , 6 9 8 . 0 0 5 3 1 . 1 6 1 . 9 9 P V C 2 . 0 0 1 . 9 9 1 . 9 9 5 3 1 . 1 6 V o l u n t a r y MW ‐12 S h a l l o w 1 , 0 0 0 , 2 8 5 . 0 0 1 , 7 8 8 , 7 9 7 . 0 0 5 9 3 . 5 9 2 . 8 8 P V C 2 . 0 0 2 . 8 8 2 . 8 8 5 9 3 . 5 9 V o l u n t a r y MW ‐12 D D e e p 1 , 0 0 0 , 2 7 5 . 0 0 1 , 7 8 8 , 7 9 4 . 0 0 5 9 3 . 2 3 2 . 4 4 P V C 2 . 0 0 2 . 4 4 2 . 4 4 5 9 3 . 2 3 V o l u n t a r y MW ‐9 S h a l l o w 9 9 6 , 9 2 5 . 0 0 1 , 7 8 9 , 1 0 6 . 0 0 5 2 6 . 4 1 2 . 1 4 P V C 2 . 0 0 2 . 1 4 2 . 1 4 5 2 6 . 4 1 V o l u n t a r y MW ‐9D D e e p 9 9 6 , 9 2 0 . 0 0 1 , 7 8 9 , 0 9 7 . 0 0 5 2 7 . 0 4 2 . 3 5 P V C 2 . 0 0 2 . 3 5 2 . 3 5 5 2 7 . 0 4 V o l u n t a r y No t e s : 1.2.3.4.5.6. De e p  an d  Be d r o c k  CA M A  we l l s  in s t a l l e d  wi t h  2 ‐in c h  ri s e r ;   Ca s i n g  va l u e  li s t e d  fo r  D/ B R  we l l s  in d i c a t e s  ou t e r  ca s i n g  di a m e t e r TO C  in d i c a t e s  to p  of  ca s i n g TO C  el e v a t i o n  ba s e d  on  NA V D  88  ve r t i c a l  da t u m No r t h i n g  an d  Ea s t i n g  ba s e d  on  NA D 8 3  ho r i z o n t a l  da t u m ft  in d i c a t e s  me a s u r e m e n t s  in  fe e t bt o c  in d i c a t e s  me a s u r e m e n t s  be l o w  th e  to p  of  ca s i n g Pa g e  3  of  3 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐9 1 1 / 2 9 / 1 9 9 3 1 7 ‐‐ 39 8 ‐‐ 6. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 4 / 1 9 9 4 1 5 . 6 ‐‐ 48 2 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 5 / 2 3 / 1 9 9 4 1 6 . 2 ‐‐ 44 9 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 1 / 2 8 / 1 9 9 4 1 7 . 2 ‐‐ 51 7 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 5 / 8 / 1 9 9 5 1 5 . 9 ‐‐ 50 4 ‐‐ 6. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 1 / 2 8 / 1 9 9 5 1 7 . 9 ‐‐ 50 6 ‐‐ 6. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 1 8 / 1 9 9 6 1 6 . 4 ‐‐ 53 0 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 0 / 1 7 / 1 9 9 6 1 7 . 6 ‐‐ 53 0 ‐‐ 6. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 1 7 / 1 9 9 7 1 4 . 7 ‐‐ 54 4 ‐‐ 6. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 0 / 1 5 / 1 9 9 7 1 6 . 5 ‐‐ 56 9 ‐‐ 6. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 2 1 / 1 9 9 8 1 5 . 3 ‐‐ 63 3 ‐‐ 6. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 0 / 2 7 / 1 9 9 8 1 8 . 2 ‐‐ 54 3 ‐‐ 6. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 6 / 1 9 9 9 1 5 . 7 ‐‐ 55 2 . 1 ‐‐ 6. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 0 / 2 8 / 1 9 9 9 1 7 . 7 ‐‐ 54 8 . 2 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 4 / 1 0 / 2 0 0 0 1 8 . 8 2 ‐‐ 58 6 ‐‐ 6. 1 ‐‐ ‐ ‐ 28.8 MW ‐9 1 0 / 1 1 / 2 0 0 0 2 3 ‐‐ 57 6 ‐‐ 5. 9 ‐‐ ‐ ‐ 29.28 MW ‐9 4 / 2 3 / 2 0 0 1 1 8 . 4 ‐‐ 54 5 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 0 / 8 / 2 0 0 1 2 0 . 9 6 ‐‐ 52 6 ‐‐ 5. 9 7 ‐‐ ‐ ‐ 27.75 MW ‐9 4 / 2 2 / 2 0 0 2 1 8 ‐‐ 52 6 ‐‐ 6. 3 ‐‐ ‐ ‐ 28.26 MW ‐9 1 0 / 1 7 / 2 0 0 2 1 9 . 0 3 ‐‐ 53 7 ‐‐ 6. 3 ‐‐ ‐ ‐ 27.6 MW ‐9 4 / 2 2 / 2 0 0 3 1 6 ‐‐ 56 7 ‐‐ 6. 1 ‐‐ ‐ ‐ 27.3 MW ‐9 1 0 / 1 5 / 2 0 0 3 1 8 . 4 4 ‐‐ 52 4 . 3 ‐‐ 6. 1 7 ‐‐ ‐ ‐ 28.7 MW ‐9 4 / 1 5 / 2 0 0 4 1 7 ‐‐ 52 9 ‐‐ 6. 4 ‐‐ ‐ ‐ 32.6 MW ‐9 1 0 / 6 / 2 0 0 4 1 8 ‐‐ 52 4 ‐‐ 6. 2 ‐‐ ‐ ‐ 29.3 MW ‐9 4 / 2 7 / 2 0 0 5 1 6 ‐‐ 55 8 ‐‐ 6. 3 ‐‐ ‐ ‐ 26.61 MW ‐9 1 0 / 1 9 / 2 0 0 5 1 8 . 6 3 ‐‐ 52 7 ‐‐ 6. 2 8 ‐‐ ‐ ‐ 25.4 MW ‐9 4 / 1 1 / 2 0 0 6 1 5 . 5 1 ‐‐ 52 8 ‐‐ 6. 2 8 ‐‐ ‐ ‐ 25.2 MW ‐9 1 0 / 2 5 / 2 0 0 6 1 6 . 3 6 ‐‐ 51 3 ‐‐ 6. 2 5 ‐‐ ‐ ‐ 22.77 MW ‐9 4 / 1 1 / 2 0 0 7 1 4 . 0 8 ‐‐ 53 0 . 1 ‐‐ 6. 2 6 ‐‐ ‐ ‐ 21.44 MW ‐9 1 0 / 2 2 / 2 0 0 7 1 9 . 3 ‐‐ 44 6 . 2 ‐‐ 5. 9 5 ‐‐ ‐ ‐ 22.09 MW ‐9 4 / 2 1 / 2 0 0 8 1 5 . 6 5 ‐‐ 48 3 . 4 ‐‐ 6. 2 2 ‐‐ ‐ ‐ 23 MW ‐9 1 0 / 1 3 / 2 0 0 8 1 8 . 3 3 ‐‐ 49 0 ‐‐ 6. 1 5 ‐‐ ‐ ‐ 29 MW ‐9 4 / 1 4 / 2 0 0 9 1 5 . 6 1 ‐‐ 47 4 . 4 ‐‐ 6. 3 6 ‐‐ ‐ ‐ 23 MW ‐9 1 0 / 2 1 / 2 0 0 9 1 7 . 9 5 ‐‐ 47 5 . 4 ‐‐ 6. 3 6 ‐‐ ‐ ‐ 26 MW ‐9 4 / 7 / 2 0 1 0 1 7 . 2 9 ‐‐ 47 7 . 1 ‐‐ 6. 2 5 ‐‐ ‐ ‐ 23 MW ‐9 1 0 / 6 / 2 0 1 0 1 7 . 8 8 ‐‐ 45 7 . 1 ‐‐ 6. 2 4 ‐‐ ‐ ‐ 27 MW ‐9 1 / 4 / 2 0 1 1 1 6 . 3 8 ‐‐ 52 1 ‐‐ 6. 4 5 26 7 < 0 . 0 2 2 8 MW ‐9 5 / 5 / 2 0 1 1 1 6 . 8 4 ‐‐ 50 6 ‐‐ 6. 4 4 30 0 0 . 0 2 2 6 MW ‐9D 4 / 2 1 / 2 0 0 8 1 6 . 9 1 ‐‐ 38 2 . 7 ‐‐ 6. 5 8 ‐‐ ‐ ‐ 30 MW ‐9D 1 0 / 1 3 / 2 0 0 8 1 7 . 7 8 ‐‐ 37 6 . 9 ‐‐ 6. 4 5 ‐‐ ‐ ‐ 38 MW ‐9D 4 / 1 4 / 2 0 0 9 1 7 . 1 1 ‐‐ 37 6 . 9 ‐‐ 6. 5 7 ‐‐ ‐ ‐ 34 MW ‐9D 1 0 / 2 1 / 2 0 0 9 1 7 . 1 9 ‐‐ 38 6 . 5 ‐‐ 6. 6 3 ‐‐ ‐ ‐ 35 MW ‐9D 4 / 7 / 2 0 1 0 1 8 . 0 3 ‐‐ 37 1 . 1 ‐‐ 6. 5 ‐‐ ‐ ‐ 29 MW ‐9D 1 0 / 6 / 2 0 1 0 1 7 . 1 7 ‐‐ 35 1 . 8 ‐‐ 6. 5 9 ‐‐ ‐ ‐ 27 MW ‐9D 1 / 4 / 2 0 1 1 1 6 . 4 ‐‐ 35 1 ‐‐ 6. 5 7 2 0 4 < 0 . 0 2 2 5 MW ‐9D 5 / 5 / 2 0 1 1 1 7 . 6 7 ‐‐ 33 8 ‐‐ 6. 5 3 2 3 0 < 0 . 0 2 3 2 1 MW ‐9D 9 / 7 / 2 0 1 1 1 7 . 5 ‐‐ 33 2 ‐‐ 6. 3 9 23 0 0 . 0 4 2 0 MW ‐10 1 1 / 2 9 / 1 9 9 3 1 4 . 5 ‐‐ 26 6 ‐‐ 6. 8 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 4 / 1 9 9 4 1 5 . 1 ‐‐ 29 0 ‐‐ 6. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 5 / 2 3 / 1 9 9 4 1 5 . 3 ‐‐ 29 4 ‐‐ 6. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 1 / 2 8 / 1 9 9 4 1 6 . 4 ‐‐ 29 1 ‐‐ 5. 2 ‐‐ ‐ ‐ ‐ ‐ Pa g e  1  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐10 5 / 8 / 1 9 9 5 1 4 . 7 ‐‐ 33 3 ‐‐ 5. 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 1 / 2 8 / 1 9 9 5 1 6 . 6 ‐‐ 29 0 ‐‐ 5. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 1 8 / 1 9 9 6 1 3 . 8 ‐‐ 31 7 ‐‐ 5. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 0 / 1 7 / 1 9 9 6 1 7 . 8 ‐‐ 29 2 ‐‐ 5. 8 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 1 7 / 1 9 9 7 1 3 . 4 ‐‐ 29 7 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 0 / 1 5 / 1 9 9 7 1 7 . 2 ‐‐ 29 1 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 2 1 / 1 9 9 8 1 3 . 4 ‐‐ 32 8 ‐‐ 5. 8 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 0 / 2 7 / 1 9 9 8 1 8 . 3 ‐‐ 43 9 ‐‐ 6. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 6 / 1 9 9 9 1 3 . 6 ‐‐ 43 8 ‐‐ 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 0 / 2 8 / 1 9 9 9 1 8 . 5 ‐‐ 39 3 . 8 ‐‐ 5. 8 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 4 / 1 0 / 2 0 0 0 1 5 . 7 7 ‐‐ 38 7 ‐‐ 5. 8 ‐‐ ‐ ‐ 41.6 MW ‐10 1 0 / 1 1 / 2 0 0 0 2 1 ‐‐ 36 8 ‐‐ 5. 6 ‐‐ ‐ ‐ 39.25 MW ‐10 4 / 2 3 / 2 0 0 1 1 5 . 1 ‐‐ 37 6 ‐‐ 5. 8 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 0 / 8 / 2 0 0 1 2 3 . 2 6 ‐‐ 44 9 ‐‐ 6 ‐‐ ‐ ‐ 34.99 MW ‐10 4 / 2 2 / 2 0 0 2 1 6 ‐‐ 37 9 ‐‐ 6. 2 ‐‐ ‐ ‐ 29.26 MW ‐10 1 0 / 1 7 / 2 0 0 2 1 9 . 0 2 ‐‐ 37 2 ‐‐ 6. 1 9 ‐‐ ‐ ‐ 27.37 MW ‐10 4 / 2 2 / 2 0 0 3 1 5 ‐‐ 39 9 . 3 ‐‐ 5. 2 ‐‐ ‐ ‐ 23.82 MW ‐10 1 0 / 1 5 / 2 0 0 3 1 8 . 8 6 ‐‐ 49 1 ‐‐ 6. 0 1 ‐‐ ‐ ‐ 26.01 MW ‐10 4 / 1 5 / 2 0 0 4 1 6 ‐‐ 50 5 ‐‐ 6. 2 ‐‐ ‐ ‐ 22.11 MW ‐10 1 0 / 6 / 2 0 0 4 1 9 ‐‐ 44 4 ‐‐ 6 ‐‐ ‐ ‐ 89.69 MW ‐10 4 / 2 7 / 2 0 0 5 1 5 ‐‐ 42 5 ‐‐ 6. 2 ‐‐ ‐ ‐ 15.87 MW ‐10 1 0 / 1 9 / 2 0 0 5 1 9 . 5 3 ‐‐ 41 2 ‐‐ 6. 1 8 ‐‐ ‐ ‐ 15 MW ‐10 4 / 1 1 / 2 0 0 6 1 4 . 5 5 ‐‐ 39 1 . 5 ‐‐ 6. 1 4 ‐‐ ‐ ‐ 16.35 MW ‐10 1 0 / 2 5 / 2 0 0 6 1 7 . 9 5 ‐‐ 39 5 . 6 ‐‐ 6. 1 7 ‐‐ ‐ ‐ 19.68 MW ‐10 4 / 1 1 / 2 0 0 7 1 2 . 9 8 ‐‐ 39 3 . 2 ‐‐ 6. 0 7 ‐‐ ‐ ‐ 18.89 MW ‐10 1 0 / 2 2 / 2 0 0 7 1 9 . 2 4 ‐‐ 39 3 . 5 ‐‐ 6. 0 3 ‐‐ ‐ ‐ 19.21 MW ‐10 4 / 2 1 / 2 0 0 8 1 4 . 3 8 ‐‐ 40 6 . 2 ‐‐ 6. 0 9 ‐‐ ‐ ‐ 25 MW ‐10 1 0 / 1 3 / 2 0 0 8 1 8 . 3 1 ‐‐ 42 5 . 5 ‐‐ 6. 1 8 ‐‐ ‐ ‐ 40 MW ‐10 4 / 1 4 / 2 0 0 9 1 3 . 5 7 ‐‐ 38 1 . 9 ‐‐ 6. 2 1 ‐‐ ‐ ‐ 27 MW ‐10 1 0 / 2 1 / 2 0 0 9 1 6 . 9 5 ‐‐ 43 1 . 7 ‐‐ 6. 3 2 ‐‐ ‐ ‐ 30 MW ‐10 4 / 7 / 2 0 1 0 1 3 . 6 ‐‐ 36 7 . 4 ‐‐ 6. 1 ‐‐ ‐ ‐ 20 MW ‐10 1 0 / 6 / 2 0 1 0 1 8 . 5 7 ‐‐ 37 4 . 2 ‐‐ 6. 1 4 ‐‐ ‐ ‐ 16 MW ‐10 1 / 4 / 2 0 1 1 1 2 . 1 8 ‐‐ 36 6 ‐‐ 6. 1 2 21 0 < 0 . 0 2 1 4 MW ‐10 5 / 5 / 2 0 1 1 1 4 . 5 2 ‐‐ 36 7 ‐‐ 6. 2 23 0 < 0 . 0 2 3 1 4 MW ‐10 D 4 / 2 1 / 2 0 0 8 1 5 . 5 7 ‐‐ 39 0 . 7 ‐‐ 6. 1 4 ‐‐ ‐ ‐ 28 MW ‐10 D 1 0 / 1 3 / 2 0 0 8 1 5 . 7 9 ‐‐ 39 0 . 1 ‐‐ 6. 2 3 ‐‐ ‐ ‐ 33 MW ‐10 D 4 / 1 4 / 2 0 0 9 1 5 . 1 8 ‐‐ 38 6 . 4 ‐‐ 6. 3 1 ‐‐ ‐ ‐ 29 MW ‐10 D 1 0 / 2 1 / 2 0 0 9 1 5 . 2 9 ‐‐ 39 0 . 7 ‐‐ 6. 4 1 ‐‐ ‐ ‐ 29 MW ‐10 D 4 / 7 / 2 0 1 0 1 5 . 7 5 ‐‐ 39 3 . 9 ‐‐ 6. 1 6 ‐‐ ‐ ‐ 27 MW ‐10 D 1 0 / 6 / 2 0 1 0 1 5 . 6 4 ‐‐ 39 3 . 5 ‐‐ 6. 3 1 ‐‐ ‐ ‐ 31 MW ‐10 D 1 / 4 / 2 0 1 1 1 4 . 3 8 ‐‐ 39 7 ‐‐ 6. 2 7 23 5 < 0 . 0 2 3 2 MW ‐10 D 5 / 5 / 2 0 1 1 1 6 ‐‐ 39 0 ‐‐ 6. 3 27 0 < 0 . 0 2 3 3 0 MW ‐10 D 9 / 7 / 2 0 1 1 1 6 . 5 1 ‐‐ 38 5 ‐‐ 6. 0 6 25 0 < 0 . 0 2 3 3 2 MW ‐11 1 1 / 2 9 / 1 9 9 3 1 7 . 8 ‐‐ 20 1 ‐‐ 5. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 4 / 4 / 1 9 9 4 1 4 . 6 ‐‐ 20 3 ‐‐ 4. 9 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 5 / 2 3 / 1 9 9 4 1 7 . 8 ‐‐ 20 2 ‐‐ 5 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 1 / 2 8 / 1 9 9 4 1 7 . 8 ‐‐ 23 3 ‐‐ 4. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 5 / 8 / 1 9 9 5 1 5 ‐‐ 22 6 ‐‐ 5. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 1 / 2 8 / 1 9 9 5 1 8 . 6 ‐‐ 22 1 ‐‐ 5 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 4 / 1 8 / 1 9 9 6 1 6 ‐‐ 22 3 ‐‐ 4. 9 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 0 / 1 7 / 1 9 9 6 1 8 . 6 ‐‐ 22 4 ‐‐ 5 ‐‐ ‐ ‐ ‐ ‐ Pa g e  2  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐11 4 / 1 7 / 1 9 9 7 1 4 . 5 ‐‐ 21 6 ‐‐ 5. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 0 / 1 5 / 1 9 9 7 1 7 . 7 ‐‐ 21 3 ‐‐ 4. 9 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 4 / 2 1 / 1 9 9 8 1 4 . 4 ‐‐ 22 9 ‐‐ 5 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 0 / 2 7 / 1 9 9 8 1 9 . 2 ‐‐ 22 1 ‐‐ 5 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 4 / 6 / 1 9 9 9 1 5 . 9 ‐‐ 22 6 . 5 ‐‐ 5. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 0 / 2 8 / 1 9 9 9 1 8 . 7 ‐‐ 24 5 . 9 ‐‐ 4. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 4 / 1 1 / 2 0 0 0 2 1 . 8 9 ‐‐ 25 9 ‐‐ 4. 8 ‐‐ ‐ ‐ 42.1 MW ‐11 1 0 / 1 1 / 2 0 0 0 2 3 ‐‐ 25 2 ‐‐ 4. 5 ‐‐ ‐ ‐ 36.1 MW ‐11 4 / 2 3 / 2 0 0 1 1 7 . 7 ‐‐ 25 1 ‐‐ 4. 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 1 0 / 8 / 2 0 0 1 1 7 . 7 5 ‐‐ 25 0 ‐‐ 4. 5 6 ‐‐ ‐ ‐ 32.87 MW ‐11 4 / 2 2 / 2 0 0 2 1 7 ‐‐ 24 8 ‐‐ 4. 9 ‐‐ ‐ ‐ 30.03 MW ‐11 1 0 / 1 7 / 2 0 0 2 1 9 . 2 6 ‐‐ 25 1 ‐‐ 4. 9 ‐‐ ‐ ‐ 28.67 MW ‐11 4 / 2 2 / 2 0 0 3 1 6 ‐‐ 27 6 ‐‐ 4. 8 ‐‐ ‐ ‐ 27.03 MW ‐11 1 0 / 1 5 / 2 0 0 3 2 0 . 4 5 ‐‐ 21 3 . 9 ‐‐ 4. 8 7 ‐‐ ‐ ‐ 19.22 MW ‐11 4 / 1 5 / 2 0 0 4 1 5 ‐‐ 20 3 ‐‐ 5 ‐‐ ‐ ‐ 13.41 MW ‐11 1 0 / 6 / 2 0 0 4 2 0 ‐‐ 21 0 ‐‐ 4. 9 ‐‐ ‐ ‐ 16.96 MW ‐11 4 / 2 7 / 2 0 0 5 1 6 ‐‐ 22 3 ‐‐ 4. 9 ‐‐ ‐ ‐ 15.39 MW ‐11 1 0 / 1 9 / 2 0 0 5 2 0 . 5 9 ‐‐ 20 4 ‐‐ 4. 8 ‐‐ ‐ ‐ 15.4 MW ‐11 4 / 1 1 / 2 0 0 6 1 6 . 4 8 ‐‐ 20 6 . 8 ‐‐ 4. 9 3 ‐‐ ‐ ‐ 19.34 MW ‐11 1 0 / 2 5 / 2 0 0 6 1 8 . 2 6 ‐‐ 20 5 . 9 ‐‐ 4. 9 ‐‐ ‐ ‐ 23.33 MW ‐11 4 / 1 1 / 2 0 0 7 1 4 . 3 2 ‐‐ 20 4 . 5 ‐‐ 4. 8 8 ‐‐ ‐ ‐ 21.79 MW ‐11 1 0 / 2 2 / 2 0 0 7 2 1 . 0 7 ‐‐ 18 3 . 9 ‐‐ 4. 7 4 ‐‐ ‐ ‐ 19.6 MW ‐11 4 / 2 1 / 2 0 0 8 1 5 . 6 1 ‐‐ 20 9 . 8 ‐‐ 4. 9 ‐‐ ‐ ‐ 29 MW ‐11 1 0 / 1 3 / 2 0 0 8 2 1 . 9 7 ‐‐ 20 7 ‐‐ 4. 8 7 ‐‐ ‐ ‐ 34 MW ‐11 4 / 1 4 / 2 0 0 9 1 4 . 1 5 ‐‐ 21 9 ‐‐ 4. 7 7 ‐‐ ‐ ‐ 32 MW ‐11 1 0 / 2 1 / 2 0 0 9 1 6 . 4 6 ‐‐ 20 0 ‐‐ 5. 0 1 ‐‐ ‐ ‐ 25 MW ‐11 4 / 7 / 2 0 1 0 1 5 . 4 4 ‐‐ 18 4 ‐‐ 4. 8 ‐‐ ‐ ‐ 15 MW ‐11 1 0 / 6 / 2 0 1 0 1 8 . 3 5 ‐‐ 17 7 ‐‐ 4. 9 ‐‐ ‐ ‐ 11 MW ‐11 1 / 4 / 2 0 1 1 1 5 . 1 4 ‐‐ 18 9 ‐‐ 4. 8 5 14 1 0 . 0 4 9 . 7 MW ‐11 5 / 5 / 2 0 1 1 1 4 . 2 1 ‐‐ 18 2 ‐‐ 4. 7 8 14 0 0 . 0 6 7 . 9 MW ‐11 D 4 / 2 1 / 2 0 0 8 1 7 . 6 7 ‐‐ 62 9 . 3 ‐‐ 11 . 2 ‐‐ ‐ ‐ 23 MW ‐11 D 1 0 / 1 3 / 2 0 0 8 1 8 . 6 8 ‐‐ 35 6 ‐‐ 10 . 0 3 ‐‐ ‐ ‐ 31 MW ‐11 D 4 / 1 4 / 2 0 0 9 1 5 . 1 7 ‐‐ 37 5 ‐‐ 9. 0 5 ‐‐ ‐ ‐ 27 MW ‐11 D 1 0 / 2 1 / 2 0 0 9 1 5 . 9 4 ‐‐ 40 9 ‐‐ 8. 5 6 ‐‐ ‐ ‐ 29 MW ‐11 D 4 / 7 / 2 0 1 0 1 7 . 5 3 ‐‐ 43 2 ‐‐ 8. 6 8 ‐‐ ‐ ‐ 26 MW ‐11 D 1 0 / 6 / 2 0 1 0 1 5 . 9 2 ‐‐ 45 2 ‐‐ 8. 4 3 ‐‐ ‐ ‐ 30 MW ‐11 D 1 / 4 / 2 0 1 1 1 5 . 5 8 ‐‐ 46 4 ‐‐ 8. 2 2 2 8 9 < 0 . 0 2 3 0 MW ‐11 D 5 / 5 / 2 0 1 1 1 5 . 8 9 ‐‐ 45 2 ‐‐ 8. 3 2 3 0 0 < 0 . 0 2 3 2 9 MW ‐12 1 1 / 2 8 / 1 9 9 5 1 5 . 5 ‐‐ 82 ‐‐ 5. 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 4 / 1 8 / 1 9 9 6 1 5 . 4 ‐‐ 67 ‐‐ 5. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 1 0 / 1 7 / 1 9 9 6 1 4 . 8 ‐‐ 59 ‐‐ 5. 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 4 / 1 7 / 1 9 9 7 1 4 . 1 ‐‐ 52 ‐‐ 5. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 1 0 / 1 5 / 1 9 9 7 1 4 . 6 ‐‐ 74 . 8 ‐‐ 5. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 4 / 2 1 / 1 9 9 8 1 5 ‐‐ 46 ‐‐ 5. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 1 0 / 2 7 / 1 9 9 8 1 4 . 6 ‐‐ 63 . 7 ‐‐ 5. 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 4 / 6 / 1 9 9 9 1 4 . 4 ‐‐ 64 . 1 ‐‐ 5. 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 1 0 / 2 8 / 1 9 9 9 1 4 . 7 ‐‐ 63 . 4 ‐‐ 5. 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 4 / 1 0 / 2 0 0 0 1 4 . 8 1 ‐‐ 52 ‐‐ 5 ‐‐ ‐ ‐ 5.8 MW ‐12 1 0 / 1 1 / 2 0 0 0 1 5 ‐‐ 64 ‐‐ 5 ‐‐ ‐ ‐ 5.76 MW ‐12 4 / 2 3 / 2 0 0 1 1 5 . 6 ‐‐ 72 ‐‐ 5. 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐12 1 0 / 8 / 2 0 0 1 1 6 . 2 ‐‐ 73 ‐‐ 5. 1 2 ‐‐ ‐ ‐ 5.36 Pa g e  3  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐12 4 / 2 2 / 2 0 0 2 1 6 ‐‐ 72 ‐‐ 5. 8 ‐‐ ‐ ‐ 4.56 MW ‐12 1 0 / 1 7 / 2 0 0 2 1 5 . 5 3 ‐‐ 77 ‐‐ 5. 5 ‐‐ ‐ ‐ 5.15 MW ‐12 4 / 2 2 / 2 0 0 3 1 5 ‐‐ 76 . 5 ‐‐ 6 ‐‐ ‐ ‐ 4.84 MW ‐12 1 0 / 1 5 / 2 0 0 3 1 4 . 8 9 ‐‐ 53 ‐‐ 5. 3 1 ‐‐ ‐ ‐ 5.45 MW ‐12 4 / 1 5 / 2 0 0 4 1 8 ‐‐ 53 ‐‐ 5. 4 ‐‐ ‐ ‐ 7.77 MW ‐12 1 0 / 6 / 2 0 0 4 1 5 ‐‐ 69 ‐‐ 5. 4 ‐‐ ‐ ‐ 58.8 MW ‐12 4 / 2 7 / 2 0 0 5 1 5 ‐‐ 75 ‐‐ 5. 6 ‐‐ ‐ ‐ 4.78 MW ‐12 1 0 / 1 9 / 2 0 0 5 1 5 . 6 1 ‐‐ 80 ‐‐ 5. 4 9 ‐‐ ‐ ‐ 4.52 MW ‐12 4 / 1 1 / 2 0 0 6 1 5 . 6 2 ‐‐ 77 . 3 ‐‐ 5. 5 3 ‐‐ ‐ ‐ 4.81 MW ‐12 1 0 / 2 5 / 2 0 0 6 1 4 . 3 5 ‐‐ 76 . 7 ‐‐ 5. 5 9 ‐‐ ‐ ‐ 4.23 MW ‐12 4 / 1 1 / 2 0 0 7 1 4 . 2 ‐‐ 77 . 5 ‐‐ 5. 3 5 ‐‐ ‐ ‐ 4.57 MW ‐12 1 0 / 2 2 / 2 0 0 7 1 6 . 2 2 ‐‐ 84 . 4 ‐‐ 5. 3 ‐‐ ‐ ‐ 4.99 MW ‐12 4 / 2 1 / 2 0 0 8 1 5 . 4 8 ‐‐ 10 2 . 8 ‐‐ 5. 6 7 ‐‐ ‐ ‐ 5.9 MW ‐12 1 0 / 1 3 / 2 0 0 8 1 4 . 8 9 ‐‐ 10 1 ‐‐ 5. 5 9 ‐‐ ‐ ‐ 6.3 MW ‐12 4 / 1 4 / 2 0 0 9 1 4 . 9 7 ‐‐ 77 ‐‐ 5. 5 9 ‐‐ ‐ ‐ 4.9 MW ‐12 1 0 / 2 1 / 2 0 0 9 1 4 . 8 8 ‐‐ 85 ‐‐ 5. 8 3 ‐‐ ‐ ‐ 6 MW ‐12 4 / 7 / 2 0 1 0 1 5 . 0 4 ‐‐ 75 ‐‐ 5. 3 8 ‐‐ ‐ ‐ 6 MW ‐12 1 0 / 6 / 2 0 1 0 1 4 . 7 1 ‐‐ 89 ‐‐ 5. 6 6 ‐‐ ‐ ‐ 6.4 MW ‐12 D 4 / 2 1 / 2 0 0 8 1 5 . 3 9 ‐‐ 21 3 . 7 ‐‐ 6. 2 2 ‐‐ ‐ ‐ 8.6 MW ‐12 D 1 0 / 1 3 / 2 0 0 8 1 5 . 0 2 ‐‐ 20 6 ‐‐ 6. 1 5 ‐‐ ‐ ‐ 11 MW ‐12 D 4 / 1 4 / 2 0 0 9 1 5 . 0 6 ‐‐ 21 7 ‐‐ 6. 2 1 ‐‐ ‐ ‐ 9.7 MW ‐12 D 1 0 / 2 1 / 2 0 0 9 1 4 . 9 6 ‐‐ 20 9 ‐‐ 6. 4 2 ‐‐ ‐ ‐ 10 MW ‐12 D 4 / 7 / 2 0 1 0 1 5 . 0 9 ‐‐ 21 4 ‐‐ 5. 9 9 ‐‐ ‐ ‐ 8.5 MW ‐12 D 1 0 / 6 / 2 0 1 0 1 4 . 7 9 ‐‐ 21 1 ‐‐ 6. 2 2 ‐‐ ‐ ‐ 10 MW ‐20 S 1 / 4 / 2 0 1 1 1 3 . 6 5 ‐‐ 23 9 . 9 ‐‐ 5. 9 8 14 0 < 0 . 0 2 2 1 MW ‐20 S 5 / 5 / 2 0 1 1 1 2 . 6 4 ‐‐ 23 4 . 1 ‐‐ 6 15 0 < 0 . 0 2 3 2 1 MW ‐20 S 9 / 7 / 2 0 1 1 1 5 . 4 ‐‐ 22 8 . 9 ‐‐ 5. 9 7 14 0 < 0 . 0 2 3 2 1 MW ‐20 S 1 / 1 2 / 2 0 1 2 1 4 . 1 5 2 1 5 2 2 3 . 7 0 . 0 8 6. 2 4 16 0 < 0 . 0 2 3 2 1 MW ‐20 S 5 / 7 / 2 0 1 2 1 3 . 8 1 2 1 8 2 2 4 0 . 5 1 5. 9 1 14 7 < 0 . 0 2 3 2 0 MW ‐20 S 9 / 4 / 2 0 1 2 1 5 . 7 1 1 5 9 2 3 0 0 . 4 7 5. 8 7 15 0 < 0 . 0 2 3 1 9 MW ‐20 S 1 / 7 / 2 0 1 3 1 4 . 1 2 3 1 2 2 1 9 0 . 4 4 5. 9 8 13 0 < 0 . 0 2 3 2 1 MW ‐20 S 5 / 7 / 2 0 1 3 1 2 . 9 9 2 8 8 2 2 0 0 . 0 8 5. 8 2 15 0 < 0 . 0 2 3 2 1 MW ‐20 S 9 / 4 / 2 0 1 3 1 5 . 1 6 2 5 6 2 2 3 ‐‐ 5. 9 4 14 0 < 0 . 0 2 3 2 0 MW ‐20 S 1 / 1 3 / 2 0 1 4 1 4 . 1 7 2 6 6 2 2 3 0 . 4 5 5. 8 7 15 0 < 0 . 0 2 3 2 0 MW ‐20 S 5 / 5 / 2 0 1 4 1 2 . 9 4 2 2 7 2 2 3 0 . 4 4 5. 8 9 15 0 < 0 . 0 2 3 1 9 MW ‐20 S 9 / 8 / 2 0 1 4 1 4 . 7 2 1 8 8 2 2 1 0 . 0 4 5. 8 7 14 0 < 0 . 0 2 3 1 8 MW ‐20 S 1 / 5 / 2 0 1 5 1 4 . 0 6 2 5 7 2 1 2 0 . 5 3 6. 1 3 13 0 < 0 . 0 2 3 1 9 MW ‐20 S 5 / 4 / 2 0 1 5 1 2 . 5 9 2 3 9 2 1 1 0 . 3 6 5. 9 4 13 0 < 0 . 0 2 3 1 9 MW ‐20 S 9 / 1 / 2 0 1 5 1 5 . 1 4 2 3 3 2 1 3 0 . 1 5. 9 6 14 0 < 0 . 0 2 3 1 8 MW ‐20 S 1 / 4 / 2 0 1 6 1 4 . 2 7 2 2 6 2 2 2 0 6. 0 2 12 0 < 0 . 0 2 3 1 9 MW ‐20 S 5 / 2 / 2 0 1 6 1 3 . 3 1 2 3 8 2 1 4 0 5. 8 3 14 0 < 0 . 0 2 3 2 0 MW ‐20 D 1 / 4 / 2 0 1 1 1 3 . 5 2 ‐‐ 32 5 . 6 ‐‐ 7. 2 7 1 7 2 < 0 . 0 2 5 . 3 MW ‐20 D 5 / 5 / 2 0 1 1 1 3 . 7 6 ‐‐ 32 7 . 7 ‐‐ 7. 4 4 2 1 0 < 0 . 0 2 3 4 . 7 MW ‐20 D 9 / 7 / 2 0 1 1 1 4 . 5 8 ‐‐ 32 3 . 4 ‐‐ 7. 4 1 2 0 0 < 0 . 0 2 3 4 . 9 MW ‐20 D 1 / 1 2 / 2 0 1 2 1 3 . 9 6 1 8 2 3 2 3 . 7 0 . 0 7 7 . 6 7 2 1 0 < 0 . 0 2 3 4 . 9 MW ‐20 D 5 / 7 / 2 0 1 2 1 4 . 2 2 1 5 3 3 1 9 0 7 . 3 5 2 8 3 < 0 . 0 2 3 4 . 6 MW ‐20 D 9 / 4 / 2 0 1 2 1 4 . 5 2 1 0 5 3 2 5 0 7 . 3 2 2 1 0 < 0 . 0 2 3 4 . 1 MW ‐20 D 1 / 7 / 2 0 1 3 1 4 . 2 2 2 7 6 3 2 3 0 . 1 8 7 . 3 7 1 9 0 < 0 . 0 2 3 4 . 5 MW ‐20 D 5 / 7 / 2 0 1 3 1 4 . 1 2 2 1 6 3 2 4 0 . 0 5 7 . 3 1 2 0 0 < 0 . 0 2 3 4 . 7 MW ‐20 D 9 / 4 / 2 0 1 3 1 4 . 3 8 1 8 8 3 2 4 ‐‐ 7. 4 2 2 0 0 < 0 . 0 2 3 4 . 3 MW ‐20 D 1 / 1 3 / 2 0 1 4 1 4 . 1 1 2 0 4 3 2 5 0 . 1 8 7 . 3 2 2 1 0 < 0 . 0 2 3 4 . 5 Pa g e  4  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐20 D 5 / 5 / 2 0 1 4 1 4 . 2 5 1 8 6 3 2 5 0 . 1 9 7 . 2 9 2 0 0 < 0 . 0 2 3 4 . 6 MW ‐20 D 9 / 8 / 2 0 1 4 1 4 . 2 6 1 5 9 3 2 3 0 . 0 8 7 . 3 1 2 0 0 < 0 . 0 2 3 4 . 2 MW ‐20 D 1 / 5 / 2 0 1 5 1 4 . 0 2 1 9 5 3 2 4 0 . 1 5 7 . 5 8 2 0 0 < 0 . 0 2 3 4 . 3 MW ‐20 D 5 / 4 / 2 0 1 5 1 4 . 0 3 1 7 0 3 2 5 0 . 1 3 7 . 4 5 2 0 0 < 0 . 0 2 3 4 . 4 MW ‐20 D 9 / 1 / 2 0 1 5 1 4 . 4 1 1 4 4 3 2 6 0 . 1 2 7 . 4 3 2 0 0 < 0 . 0 2 3 4 . 4 MW ‐20 D 1 / 4 / 2 0 1 6 1 3 . 7 9 1 7 1 3 2 5 0 7 . 4 4 1 7 0 < 0 . 0 2 3 4 . 9 MW ‐20 D 5 / 2 / 2 0 1 6 1 4 . 2 3 1 9 4 3 1 7 0 7 . 2 3 1 9 0 < 0 . 0 2 3 4 . 7 MW ‐21 S 1 / 4 / 2 0 1 1 1 6 . 5 1 ‐‐ 21 7 . 7 ‐‐ 6. 8 2 1 2 7 < 0 . 0 2 1 1 MW ‐21 S 5 / 5 / 2 0 1 1 1 5 . 8 8 ‐‐ 22 5 . 3 ‐‐ 6. 8 1 1 5 0 0 . 0 3 1 1 MW ‐21 S 9 / 7 / 2 0 1 1 1 8 . 4 1 ‐‐ 21 7 . 9 ‐‐ 6. 5 9 1 3 0 < 0 . 0 2 3 1 2 MW ‐21 S 1 / 1 2 / 2 0 1 2 1 7 . 3 6 3 5 4 2 2 7 . 2 0 . 2 7 7 . 0 5 1 6 0 0 . 0 6 1 3 MW ‐21 S 5 / 7 / 2 0 1 2 1 6 . 6 7 3 0 2 2 4 1 0 . 3 6 . 7 2 9 7 < 0 . 0 2 3 1 0 MW ‐21 S 9 / 4 / 2 0 1 2 1 9 . 0 7 2 7 0 2 6 7 0 . 4 2 6 . 6 1 1 7 0 < 0 . 0 2 3 1 0 MW ‐21 S 1 / 7 / 2 0 1 3 1 7 . 8 2 3 3 4 2 9 4 0 . 1 3 6 . 7 4 1 8 0 < 0 . 0 2 3 1 5 MW ‐21 S 5 / 7 / 2 0 1 3 1 6 . 1 8 2 6 1 2 9 0 0 . 6 5 6 . 8 1 2 1 0 0 . 0 2 2 2 MW ‐21 S 9 / 3 / 2 0 1 3 1 7 . 5 2 3 2 5 3 2 9 ‐‐ 6. 6 5 2 0 0 < 0 . 0 2 3 2 0 MW ‐21 S 1 / 1 3 / 2 0 1 4 1 6 . 4 7 2 7 8 2 7 6 0 . 5 5 6 . 7 4 1 8 0 0 . 0 7 1 3 MW ‐21 S 5 / 5 / 2 0 1 4 1 5 . 5 7 3 0 9 2 8 4 0 . 3 2 6. 4 7 18 0 < 0 . 0 2 3 1 2 MW ‐21 S 9 / 8 / 2 0 1 4 1 7 . 1 7 3 0 0 2 6 5 0 . 1 1 6. 4 5 16 0 < 0 . 0 2 3 1 2 MW ‐21 S 1 / 5 / 2 0 1 5 1 6 . 6 1 3 0 0 2 0 7 0 . 3 3 6 . 9 4 1 4 0 < 0 . 0 2 3 1 0 MW ‐21 S 5 / 4 / 2 0 1 5 1 5 . 8 8 2 8 7 2 2 5 0 . 3 4 6 . 6 2 1 5 0 < 0 . 0 2 3 9 . 4 MW ‐21 S 9 / 1 / 2 0 1 5 1 7 . 7 6 2 3 1 2 5 6 0 . 1 2 6 . 7 4 1 5 0 < 0 . 0 2 3 1 1 MW ‐21 S 9 / 1 0 / 2 0 1 5 1 9 . 2 1 4 0 2 5 0 0 . 5 6 . 6 9 ‐‐ ‐ ‐ ‐ ‐ MW ‐21 S 1 / 4 / 2 0 1 6 1 7 . 9 2 5 8 2 3 4 0 6 . 7 1 3 0 < 0 . 0 2 3 9 MW ‐21 S 5 / 2 / 2 0 1 6 1 6 . 6 3 2 4 0 2 1 7 0 6 . 7 9 1 4 0 < 0 . 0 2 3 7 . 4 MW ‐21 D 1 / 4 / 2 0 1 1 1 7 . 1 4 ‐‐ 88 5 . 4 ‐‐ 7. 2 2 64 3 <0.02 1 7 MW ‐21 D 5 / 5 / 2 0 1 1 1 6 . 7 4 ‐‐ 94 8 . 6 ‐‐ 7. 2 1 77 0 <0.023 1 5 MW ‐21 D 9 / 7 / 2 0 1 1 1 6 . 8 1 ‐‐ 87 8 . 4 ‐‐ 7. 0 8 67 0 <0.023 1 6 MW ‐21 D 1 / 1 2 / 2 0 1 2 1 7 . 6 8 2 2 2 9 0 0 . 9 0 . 4 5 7 . 3 6 71 0 <0.023 1 8 MW ‐21 D 5 / 7 / 2 0 1 2 1 7 . 3 2 2 0 4 9 5 0 0 . 4 4 7 . 0 7 74 3 <0.023 1 6 MW ‐21 D 9 / 4 / 2 0 1 2 1 7 . 4 9 1 9 0 9 3 8 0 . 4 2 7 73 0 <0.023 1 6 MW ‐21 D 1 / 7 / 2 0 1 3 1 8 2 4 7 9 2 2 1 . 6 9 7 . 2 4 70 0 <0.023 1 8 MW ‐21 D 5 / 7 / 2 0 1 3 1 7 . 2 1 2 1 1 9 0 7 0 . 2 6 7 . 1 3 76 0 0.03 1 7 MW ‐21 D 9 / 3 / 2 0 1 3 1 6 . 8 3 2 1 6 8 9 3 ‐‐ 7. 0 3 71 0 <0.023 1 6 MW ‐21 D 1 / 1 3 / 2 0 1 4 1 7 . 2 9 2 3 4 9 2 2 0 . 5 7 . 0 1 70 0 <0.023 1 7 MW ‐21 D 5 / 5 / 2 0 1 4 1 7 2 0 6 9 6 5 0 6 . 9 4 74 0 <0.023 1 7 MW ‐21 D 9 / 8 / 2 0 1 4 1 6 . 2 5 1 8 2 8 6 0 0 . 1 7 7 67 0 0.03 1 6 MW ‐21 D 1 / 5 / 2 0 1 5 1 7 . 0 2 2 1 5 8 3 5 1 . 9 2 7 . 2 8 63 0 <0.023 1 8 MW ‐21 D 5 / 4 / 2 0 1 5 1 6 . 5 2 1 7 9 8 8 9 0 . 2 7 . 1 2 65 0 0.03 1 7 MW ‐21 D 9 / 1 / 2 0 1 5 1 6 . 6 4 1 5 5 8 4 0 0 . 2 7 . 1 4 60 0 0.04 1 7 MW ‐21 D 1 / 4 / 2 0 1 6 1 7 . 4 7 1 9 5 8 5 8 0 7 . 1 4 60 0 <0.023 1 8 MW ‐21 D 5 / 2 / 2 0 1 6 1 7 . 2 9 1 8 7 8 7 4 0 6 . 8 7 64 0 <0.023 1 9 MW ‐22 S 1 / 1 2 / 2 0 1 2 1 5 . 3 8 1 4 5 4 0 2 0 . 4 6 6 . 7 8 2 2 0 < 0 . 0 2 3 2 4 MW ‐22 S 5 / 7 / 2 0 1 2 1 6 . 5 7 2 8 4 1 8 0 . 1 6 . 8 1 6 4 < 0 . 0 2 3 2 2 MW ‐22 S 9 / 4 / 2 0 1 2 1 8 . 4 5 3 2 3 9 5 0 . 1 7 6 . 6 6 2 1 0 < 0 . 0 2 3 1 9 MW ‐22 S 1 / 7 / 2 0 1 3 1 4 . 1 1 1 0 9 3 9 9 0 . 8 4 6 . 8 1 2 0 0 0 . 0 4 2 1 MW ‐22 S 5 / 7 / 2 0 1 3 1 6 . 2 8 1 0 0 3 3 1 0 . 4 3 6 . 6 7 2 0 0 < 0 . 0 2 3 1 7 MW ‐22 S 9 / 3 / 2 0 1 3 1 8 . 4 6 6 2 3 9 1 ‐‐ 6. 5 6 2 1 0 < 0 . 0 2 3 1 8 MW ‐22 S 1 / 1 3 / 2 0 1 4 1 6 . 3 6 1 4 2 3 4 5 0 . 4 1 6 . 5 7 2 1 0 < 0 . 0 2 3 1 8 MW ‐22 S 5 / 5 / 2 0 1 4 1 5 . 8 2 6 7 3 9 0 0 . 6 1 6 . 6 2 2 0 0 < 0 . 0 2 3 2 0 MW ‐22 S 9 / 8 / 2 0 1 4 1 6 . 9 7 6 0 3 8 0 0 . 3 6 . 5 5 2 1 0 < 0 . 0 2 3 2 0 Pa g e  5  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : N S N S N S N S 6 . 5  ‐   8. 5 5 0 0 1 0 2 5 0 Un i t s : ° C m V µ Ω /c m m g / L S U m g / L m g / L m g / L We l l  ID S a m p l e  Da t e T e m p e r a t u r e O R P S p e c i f i c  Co n d u c t i v i t y D O p H  (F i e l d ) T D S N i t r a t e C h l o r i d e MW ‐22 S 1 / 5 / 2 0 1 5 1 5 . 8 6 1 2 2 3 9 7 0 . 4 1 6 . 5 5 2 1 0 < 0 . 0 2 3 1 9 MW ‐22 S 5 / 4 / 2 0 1 5 1 5 . 4 4 1 2 1 4 1 3 0 . 4 6 6 . 7 2 2 1 0 < 0 . 0 2 3 1 8 MW ‐22 S 9 / 1 / 2 0 1 5 1 7 . 8 8 1 0 4 4 2 5 0 . 5 6 . 6 2 2 2 0 < 0 . 0 2 3 1 8 MW ‐22 S 1 / 4 / 2 0 1 6 1 6 . 1 4 1 3 5 4 1 6 0 . 1 8 6 . 8 8 2 1 0 < 0 . 0 2 3 1 8 MW ‐22 S 5 / 2 / 2 0 1 6 1 6 . 1 8 6 3 6 8 0 6 . 6 2 2 0 < 0 . 0 2 3 2 1 MW ‐22 D 1 / 1 2 / 2 0 1 2 1 2 . 0 4 1 6 4 4 3 6 6 . 2 3 7 . 4 8 3 2 0 0 . 0 4 2 3 MW ‐22 D 5 / 7 / 2 0 1 2 1 6 . 9 2 1 8 5 4 5 4 5 . 2 5 7 . 4 6 2 1 0 0 . 2 8 2 1 MW ‐22 D 9 / 5 / 2 0 1 2 1 9 . 5 4 1 8 8 4 7 6 6 . 2 6 7 . 6 9 3 4 0 0 . 0 4 1 9 MW ‐22 D 1 / 7 / 2 0 1 3 1 3 . 6 8 1 9 0 4 1 4 7 . 4 7 7 . 7 3 2 8 0 0 . 0 8 1 9 MW ‐22 D 5 / 8 / 2 0 1 3 1 6 . 9 2 1 3 9 4 2 3 4 . 1 6 7 . 6 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐22 D 9 / 4 / 2 0 1 3 1 8 . 9 2 1 6 7 4 2 7 ‐‐ 7. 5 8 3 1 0 0 . 0 7 1 6 MW ‐22 D 1 / 1 3 / 2 0 1 4 1 3 . 5 3 2 1 1 4 0 5 6 . 7 1 7 . 5 2 9 0 0 . 0 4 1 7 MW ‐22 D 5 / 5 / 2 0 1 4 1 6 . 2 7 1 4 5 3 9 8 6 . 9 8 7 . 5 6 2 7 0 0 . 0 3 1 7 MW ‐22 D 9 / 8 / 2 0 1 4 1 7 . 2 7 1 4 0 4 0 6 6 . 9 6 7 . 5 3 2 9 0 0 . 0 3 1 7 MW ‐22 D 1 / 5 / 2 0 1 5 1 4 . 1 2 2 0 0 4 4 8 7 . 2 5 7 . 5 8 1 3 0 0 . 5 1 9 MW ‐22 D 5 / 4 / 2 0 1 5 1 5 . 9 9 1 7 9 4 5 9 7 . 1 9 7 . 7 8 2 9 0 0 . 5 2 1 9 MW ‐22 D 9 / 1 / 2 0 1 5 1 8 . 2 8 1 2 6 4 5 9 8 . 0 8 7 . 5 2 2 9 0 ‐‐ ‐ ‐ MW ‐22 D 1 / 4 / 2 0 1 6 1 4 . 7 8 1 5 6 4 7 3 7 . 5 1 7 . 6 7 2 9 0 0 . 5 8 2 0 MW ‐22 D 5 / 2 / 2 0 1 6 1 6 . 8 8 1 5 1 4 4 3 7 . 3 3 7 . 6 1 3 1 0 0 . 5 2 1 MW ‐23 D 1 / 4 / 2 0 1 1 1 2 . 4 6 ‐‐ 35 4 . 6 ‐‐ 6. 9 2 0 4 0 . 5 6 1 3 MW ‐23 D 5 / 5 / 2 0 1 1 1 2 . 1 7 ‐‐ 18 6 . 2 ‐‐ 5. 9 2 14 0 0 . 2 2 8 . 2 MW ‐23 D 9 / 7 / 2 0 1 1 1 8 . 6 3 ‐‐ 13 9 ‐‐ 6. 1 4 99 0 . 0 3 2 . 4 MW ‐23 D 1 / 1 2 / 2 0 1 2 1 1 . 4 1 3 8 9 1 1 5 7 . 8 6. 1 6 12 0 0 . 0 3 3 . 3 MW ‐23 D 5 / 7 / 2 0 1 2 1 5 . 7 3 2 7 8 4 6 3 6 . 8 2 6 . 7 2 0 2 0 . 0 3 5 . 4 MW ‐23 D 9 / 4 / 2 0 1 2 2 0 . 6 2 6 5 4 3 4 7 . 2 7 6 . 7 5 2 5 0 0 . 0 4 5 MW ‐23 D 1 / 7 / 2 0 1 3 1 1 . 2 2 3 2 4 2 8 4 3 . 5 7 6. 3 4 19 0 0 . 0 7 7 . 4 MW ‐23 D 5 / 8 / 2 0 1 3 1 2 . 3 8 3 4 8 3 6 5 3 . 8 2 6 . 6 5 2 0 0 0 . 0 4 6 . 5 MW ‐23 D 9 / 4 / 2 0 1 3 1 7 . 2 7 1 5 6 4 9 6 ‐‐ 6. 7 8 2 8 0 < 0 . 0 2 3 4 . 8 MW ‐23 D 1 / 1 3 / 2 0 1 4 1 1 . 5 5 3 9 1 1 2 8 7 . 4 2 5. 9 1 10 0 < 0 . 0 2 3 3 . 2 MW ‐23 D 5 / 5 / 2 0 1 4 1 4 . 0 5 2 4 9 4 3 0 6 . 6 9 6 . 7 5 2 8 0 0 . 0 5 4 . 7 MW ‐23 D 9 / 8 / 2 0 1 4 1 7 . 2 9 2 8 9 1 5 7 5 . 5 9 5. 7 6 12 0 0 . 0 6 1 . 3 MW ‐23 D 1 / 5 / 2 0 1 5 1 2 . 8 1 3 5 3 1 9 2 6 . 3 6 6. 0 5 30 0 < 0 . 0 2 3 3 . 8 MW ‐23 D 5 / 4 / 2 0 1 5 1 2 . 9 9 2 3 0 4 2 5 8 . 8 6 6 . 8 4 1 8 0 0 . 0 3 4 . 4 MW ‐23 D 9 / 1 / 2 0 1 5 1 6 . 4 9 1 9 5 4 7 8 0 . 6 3 7 . 0 1 2 9 0 0 . 1 2 5 . 8 MW ‐23 D 1 / 4 / 2 0 1 6 1 3 . 3 2 2 8 3 2 2 8 4 . 3 3 6. 4 9 15 0 < 0 . 0 2 3 4 . 8 MW ‐23 D 5 / 2 / 2 0 1 6 1 2 . 8 6 2 6 7 1 0 2 6 . 5 6 5. 6 7 81 < 0 . 0 2 3 2 . 8 No t e s : 1.2.3.4.5.6.7.8.9. 10 . In t e r i m  Ma x i m u m  Al l o w a b l e  Co n c e n t r a t i o n s  (I M A C s )  ca n  be  fo u n d  in  Ap p e n d i x  #1  of  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  and  Water  Quality  Standards   Ap p l i c a b l e  to  th e  Gr o u n d w a t e r s  of  No r t h  Ca r o l i n a SU  in d i c a t e s  pH  va l u e s  me a s u r e d  in  st a n d a r d  un i t s NT U  in d i c a t e s  tu r b i d i t y  va l u e s  me a s u r e d  in  Ne p h a l o m e t r i c  Tu r b i d i t y  Un i t s Pa r a m e t e r s  ar e  co m p a r e d  to  st a n d a r d s  fo u n d  in  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  an d  Wa t e r  Qu a l i t y  St a n d a r d s  Ap p l i c a b l e  to  the  Groundwaters  of   No r t h  Ca r o l i n a 2L  St a n d a r d s  ar e  es t a b l i s h e d  as  pa r t  of  15 A  NC A C  02 L  .0 2 0 2   °C  in d i c a t e s  te m p e r a t u r e  me a s u r e d  in  de g r e e s  ce l s i u s mV  in d i c a t e s  ox i d a t i o n / r e d u c t i o n  po t e n t i a l  me a s u r e d  in  mi l l i v o l t s µΩ /c m  in d i c a t e s  sp e c i f i c  co n d u c t i v i t y  me a s u r e d  in  mi c r o m h o s  pe r  ce n t i m e t e r mg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi l l i g r a m s  pe r  li t e r µg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi c r o g r a m s  pe r  li t e r Pa g e  6  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐9 1 1 / 2 9 / 1 9 9 3 MW ‐9 4 / 4 / 1 9 9 4 MW ‐9 5 / 2 3 / 1 9 9 4 MW ‐9 1 1 / 2 8 / 1 9 9 4 MW ‐9 5 / 8 / 1 9 9 5 MW ‐9 1 1 / 2 8 / 1 9 9 5 MW ‐9 4 / 1 8 / 1 9 9 6 MW ‐9 1 0 / 1 7 / 1 9 9 6 MW ‐9 4 / 1 7 / 1 9 9 7 MW ‐9 1 0 / 1 5 / 1 9 9 7 MW ‐9 4 / 2 1 / 1 9 9 8 MW ‐9 1 0 / 2 7 / 1 9 9 8 MW ‐9 4 / 6 / 1 9 9 9 MW ‐9 1 0 / 2 8 / 1 9 9 9 MW ‐9 4 / 1 0 / 2 0 0 0 MW ‐9 1 0 / 1 1 / 2 0 0 0 MW ‐9 4 / 2 3 / 2 0 0 1 MW ‐9 1 0 / 8 / 2 0 0 1 MW ‐9 4 / 2 2 / 2 0 0 2 MW ‐9 1 0 / 1 7 / 2 0 0 2 MW ‐9 4 / 2 2 / 2 0 0 3 MW ‐9 1 0 / 1 5 / 2 0 0 3 MW ‐9 4 / 1 5 / 2 0 0 4 MW ‐9 1 0 / 6 / 2 0 0 4 MW ‐9 4 / 2 7 / 2 0 0 5 MW ‐9 1 0 / 1 9 / 2 0 0 5 MW ‐9 4 / 1 1 / 2 0 0 6 MW ‐9 1 0 / 2 5 / 2 0 0 6 MW ‐9 4 / 1 1 / 2 0 0 7 MW ‐9 1 0 / 2 2 / 2 0 0 7 MW ‐9 4 / 2 1 / 2 0 0 8 MW ‐9 1 0 / 1 3 / 2 0 0 8 MW ‐9 4 / 1 4 / 2 0 0 9 MW ‐9 1 0 / 2 1 / 2 0 0 9 MW ‐9 4 / 7 / 2 0 1 0 MW ‐9 1 0 / 6 / 2 0 1 0 MW ‐9 1 / 4 / 2 0 1 1 MW ‐9 5 / 5 / 2 0 1 1 MW ‐9D 4 / 2 1 / 2 0 0 8 MW ‐9D 1 0 / 1 3 / 2 0 0 8 MW ‐9D 4 / 1 4 / 2 0 0 9 MW ‐9D 1 0 / 2 1 / 2 0 0 9 MW ‐9D 4 / 7 / 2 0 1 0 MW ‐9D 1 0 / 6 / 2 0 1 0 MW ‐9D 1 / 4 / 2 0 1 1 MW ‐9D 5 / 5 / 2 0 1 1 MW ‐9D 9 / 7 / 2 0 1 1 MW ‐10 1 1 / 2 9 / 1 9 9 3 MW ‐10 4 / 4 / 1 9 9 4 MW ‐10 5 / 2 3 / 1 9 9 4 MW ‐10 1 1 / 2 8 / 1 9 9 4 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 53 5 1 2 8 ‐‐ 0. 1 1 0 0 761 2.5 20 < 1 6 0 ‐‐ <0 . 1 < 1 0 . 0 0 1 1 0 3 < 2 18 < 1 8 3 ‐‐ <0 . 1 < 1 0 1 8 4 < 2 16 < 1 1 0 1 ‐‐ 0. 3 1 < 1 0 . 0 0 1 2 3 9 < 2 15 < 1 9 5 ‐‐ <0 . 1 < 1 0 . 0 0 1 520 <2 15 1 . 4 1 0 5 ‐‐ <0 . 1 < 1 0 . 0 0 1 1184 <2 20 < 1 1 0 0 ‐‐ <0 . 1 < 1 < 0 . 0 0 0 5 1410 <2 32 < 1 1 2 0 ‐‐ 0. 1 9 1 . 3 0 . 0 0 3 2200 <2 16 < 1 1 0 0 ‐‐ <0 . 1 < 1 < 0 . 0 0 0 5 2012 <2 16 < 2 1 0 5 ‐‐ <0 . 5 < 1 < 0 . 0 0 1 2729 <2 18 < 2 1 2 6 ‐‐ <0 . 5 1 . 5 0 . 0 0 2 7724 <2 13 < 2 1 0 9 ‐‐ <0 . 5 < 1 < 0 . 0 0 1 2258 <2 13 < 2 1 1 2 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 754 <2 20 < 2 1 0 9 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 2252 <2 15 . 4 < 2 1 5 0 ‐‐ <0 . 5 2 . 9 1 0 . 0 0 6 10000 2.15 15 . 1 6 < 2 1 4 0 ‐‐ <0 . 5 1 . 9 5 0 . 0 0 6 6300 <2 15 < 2 1 0 0 ‐‐ <0 . 5 < 1 0 . 0 0 4 3486 <2 14 . 3 5 < 2 9 9 ‐‐ <0 . 5 7 . 8 4 < 0 . 0 0 2 590 <2 11 . 6 5 < 2 1 1 0 ‐‐ <0 . 5 1 . 6 0 . 0 0 3 440 <2 12 . 9 < 2 1 0 9 ‐‐ <0 . 5 1 . 2 4 0 . 0 0 3 439 <2 13 . 4 < 2 1 1 3 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 694 <2 13 . 5 < 2 1 0 3 ‐‐ <0 . 5 1 . 8 4 0 . 0 0 4 907 <2 12 . 7 < 2 9 4 ‐‐ <0 . 5 2 . 1 8 < 0 . 0 0 2 1674 <2 12 . 8 < 2 1 0 5 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 1842 <2 11 . 4 8 < 2 9 9 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 1956 <2 11 . 7 < 2 1 0 4 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 2058 <2 10 . 3 5 < 2 9 5 1 9 2 < 0 . 5 1 . 6 4 < 0 . 0 0 2 2 9 6 < 2 10 . 3 < 2 1 0 5 2 2 0 < 0 . 5 1 . 2 9 < 0 . 0 0 2 975 <2 9. 6 1 < 2 9 6 2 3 6 < 0 . 5 2 . 2 6 < 0 . 0 0 2 2098 <2 12 . 5 7 < 2 1 0 1 1 9 7 < 0 . 5 < 1 < 0 . 0 0 2 1 1 8 < 2 12 < 2 1 0 4 1 5 5 < 0 . 5 < 1 < 0 . 0 0 2 491 <2 13 < 2 1 0 0 1 9 8 < 0 . 5 < 1 < 0 . 0 0 2 907 <2 13 < 2 9 4 1 6 4 < 0 . 5 < 1 < 0 . 0 0 2 2050 <2 12 < 1 8 3 . 5 2 2 1 < 1 < 1 < 0 . 0 0 1 320 <1 15 < 1 8 7 1 5 9 < 1 < 1 < 0 . 0 0 1 543 <1 15 < 1 8 8 1 5 7 < 1 < 1 0 . 0 0 3 1550 <1 9. 6 < 1 8 5 2 3 2 < 1 < 5 < 0 . 0 0 5 2830 <1 9. 6 < 1 7 6 1 9 4 < 1 < 5 < 0 . 0 0 5 978 <1 84 < 2 1 1 90 4 <0 . 5 1 . 5 4 0 . 0 0 3 723 <2 82 < 2 8 94 4 <0 . 5 < 1 < 0 . 0 0 2 2 3 7 < 2 95 < 2 8 91 7 <0 . 5 < 1 < 0 . 0 0 2 1 6 1 < 2 91 < 1 1 1 . 5 91 1 <1 2 . 2 4 0 . 0 0 2 1360 <1 95 < 1 1 2 96 0 <1 1 . 3 0 . 0 0 2 1090 <1 91 < 1 7 95 0 <1 < 1 < 0 . 0 0 1 2 6 8 < 1 92 < 1 7 10 7 0 <1 < 5 < 0 . 0 0 5 1 3 4 < 1 90 < 1 7 10 8 0 <1 < 5 < 0 . 0 0 5 2 5 8 < 1 90 < 1 8 10 6 0 <1 < 5 < 0 . 0 0 5 346 <1 34 5 8 3 ‐‐ 0. 1 5 < 1 0 437 <2 56 < 1 1 0 7 ‐‐ <0 . 1 0 0 508 <2 31 < 1 1 0 4 ‐‐ <0 . 1 < 1 0 9 2 < 2 47 < 1 1 2 8 ‐‐ <0 . 1 < 1 0 . 0 0 1 1 5 3 < 2 Pa g e  7  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐10 5 / 8 / 1 9 9 5 MW ‐10 1 1 / 2 8 / 1 9 9 5 MW ‐10 4 / 1 8 / 1 9 9 6 MW ‐10 1 0 / 1 7 / 1 9 9 6 MW ‐10 4 / 1 7 / 1 9 9 7 MW ‐10 1 0 / 1 5 / 1 9 9 7 MW ‐10 4 / 2 1 / 1 9 9 8 MW ‐10 1 0 / 2 7 / 1 9 9 8 MW ‐10 4 / 6 / 1 9 9 9 MW ‐10 1 0 / 2 8 / 1 9 9 9 MW ‐10 4 / 1 0 / 2 0 0 0 MW ‐10 1 0 / 1 1 / 2 0 0 0 MW ‐10 4 / 2 3 / 2 0 0 1 MW ‐10 1 0 / 8 / 2 0 0 1 MW ‐10 4 / 2 2 / 2 0 0 2 MW ‐10 1 0 / 1 7 / 2 0 0 2 MW ‐10 4 / 2 2 / 2 0 0 3 MW ‐10 1 0 / 1 5 / 2 0 0 3 MW ‐10 4 / 1 5 / 2 0 0 4 MW ‐10 1 0 / 6 / 2 0 0 4 MW ‐10 4 / 2 7 / 2 0 0 5 MW ‐10 1 0 / 1 9 / 2 0 0 5 MW ‐10 4 / 1 1 / 2 0 0 6 MW ‐10 1 0 / 2 5 / 2 0 0 6 MW ‐10 4 / 1 1 / 2 0 0 7 MW ‐10 1 0 / 2 2 / 2 0 0 7 MW ‐10 4 / 2 1 / 2 0 0 8 MW ‐10 1 0 / 1 3 / 2 0 0 8 MW ‐10 4 / 1 4 / 2 0 0 9 MW ‐10 1 0 / 2 1 / 2 0 0 9 MW ‐10 4 / 7 / 2 0 1 0 MW ‐10 1 0 / 6 / 2 0 1 0 MW ‐10 1 / 4 / 2 0 1 1 MW ‐10 5 / 5 / 2 0 1 1 MW ‐10 D 4 / 2 1 / 2 0 0 8 MW ‐10 D 1 0 / 1 3 / 2 0 0 8 MW ‐10 D 4 / 1 4 / 2 0 0 9 MW ‐10 D 1 0 / 2 1 / 2 0 0 9 MW ‐10 D 4 / 7 / 2 0 1 0 MW ‐10 D 1 0 / 6 / 2 0 1 0 MW ‐10 D 1 / 4 / 2 0 1 1 MW ‐10 D 5 / 5 / 2 0 1 1 MW ‐10 D 9 / 7 / 2 0 1 1 MW ‐11 1 1 / 2 9 / 1 9 9 3 MW ‐11 4 / 4 / 1 9 9 4 MW ‐11 5 / 2 3 / 1 9 9 4 MW ‐11 1 1 / 2 8 / 1 9 9 4 MW ‐11 5 / 8 / 1 9 9 5 MW ‐11 1 1 / 2 8 / 1 9 9 5 MW ‐11 4 / 1 8 / 1 9 9 6 MW ‐11 1 0 / 1 7 / 1 9 9 6 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 43 < 1 1 1 0 ‐‐ <0 . 1 < 1 0 . 0 0 2 2 0 0 < 2 41 1 . 8 1 0 8 ‐‐ <0 . 1 2 0 . 0 0 1 2 9 3 < 2 39 < 1 1 1 0 ‐‐ <0 . 1 1 . 2 < 0 . 0 0 0 5 1 6 0 < 2 47 < 1 1 1 0 ‐‐ <0 . 1 1 . 4 0 . 0 0 1 320 2.1 37 < 1 9 7 ‐‐ 0. 2 1 . 3 < 0 . 0 0 0 5 5 4 < 2 29 < 2 9 6 ‐‐ <0 . 5 1 . 2 0 . 0 0 1 1 1 5 < 2 39 < 2 1 0 0 ‐‐ <0 . 5 1 . 1 < 0 . 0 0 1 9 4 4 . 4 30 < 2 1 3 1 ‐‐ <0 . 5 < 1 < 0 . 0 0 1 1 1 1 < 2 51 < 2 1 4 1 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 9 5 < 2 60 < 2 1 1 7 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 4 2 < 2 32 . 8 < 2 1 2 0 ‐‐ <0 . 5 2 . 0 7 0 . 0 0 4 450 <2 38 . 5 2 < 2 1 2 0 ‐‐ <0 . 5 2 . 1 5 0 . 0 0 9 1700 <2 34 < 2 1 0 5 ‐‐ <0 . 5 < 1 0 . 0 0 4 364 <2 33 . 6 2 < 2 1 1 6 ‐‐ <0 . 5 7 . 2 0 . 0 0 3 517 <2 35 . 3 9 < 2 1 1 0 ‐‐ <0 . 5 < 1 0 . 0 0 4 6 0 < 2 32 . 3 8 < 2 1 0 8 ‐‐ <0 . 5 1 . 5 2 0 . 0 0 5 1143 <2 42 . 6 < 2 1 1 4 ‐‐ <0 . 5 < 1 0 . 0 0 3 5 6 < 2 97 . 2 8 < 2 1 3 2 ‐‐ <0 . 5 1 . 0 9 0 . 0 0 5 1 6 < 2 12 3 < 2 1 2 1 ‐‐ <0 . 5 1 . 4 6 < 0 . 0 0 2 3 5 < 2 16 . 8 8 < 2 1 1 7 ‐‐ <0 . 5 1 . 1 5 < 0 . 0 0 2 2 6 < 2 60 . 9 4 < 2 1 0 7 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 5 7 < 2 52 < 2 1 1 0 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 2 0 < 2 43 . 6 7 < 2 9 9 4 0 0 < 0 . 5 1 . 2 6 ‐‐36 < 2 36 . 1 4 < 2 1 1 1 4 2 2 < 0 . 5 < 1 < 0 . 0 0 2 < 1 0 < 2 38 . 0 5 < 2 1 1 1 3 9 1 < 0 . 5 1 . 4 2 < 0 . 0 0 2 3 7 < 2 42 . 3 5 < 2 7 4 4 0 1 < 0 . 5 < 1 < 0 . 0 0 2 1 0 < 2 41 < 2 1 1 2 3 4 8 < 0 . 5 1 . 1 < 0 . 0 0 2 4 7 < 2 44 < 2 1 2 3 4 2 5 < 0 . 5 < 1 < 0 . 0 0 2 < 1 0 < 2 43 < 2 1 1 0 3 0 1 < 0 . 5 < 1 < 0 . 0 0 2 3 7 < 2 42 < 1 7 9 4 0 7 < 1 < 1 < 0 . 0 0 1 < 1 0 < 1 40 < 1 1 0 1 3 2 0 < 1 < 1 < 0 . 0 0 1 344 <1 56 < 1 1 1 1 3 7 3 < 1 < 1 < 0 . 0 0 1 1 6 < 1 49 < 1 1 0 9 3 6 4 < 1 < 5 < 0 . 0 0 5 1 2 3 < 1 40 < 1 9 9 3 3 6 < 1 < 5 < 0 . 0 0 5 2 6 9 < 1 48 < 2 6 2 4 7 4 < 0 . 5 1 . 0 9 < 0 . 0 0 2 850 <2 45 < 2 5 6 4 7 3 < 0 . 5 < 1 < 0 . 0 0 2 624 <2 48 < 2 5 8 4 6 7 < 0 . 5 < 1 < 0 . 0 0 2 414 <2 44 < 1 5 1 . 9 4 8 4 < 1 < 1 0 . 0 0 1 314 <1 45 < 1 5 9 4 8 3 < 1 < 1 < 0 . 0 0 1 2 6 7 < 1 46 < 1 5 4 4 3 9 < 1 < 1 < 0 . 0 0 1 2 3 0 < 1 46 < 1 5 8 5 0 7 < 1 < 5 < 0 . 0 0 5 2 4 1 < 1 43 < 1 5 7 4 8 2 < 1 < 5 < 0 . 0 0 5 2 4 6 < 1 46 < 1 5 6 4 6 7 < 1 < 5 < 0 . 0 0 5 2 0 7 < 1 30 5 9 1 ‐‐ <0 . 1 < 1 0 . 0 0 1 547 <2 40 < 1 1 3 1 ‐‐ 0. 1 4 2 . 2 0 . 0 0 1 2100 6.2 23 6 . 7 1 6 1 ‐‐ <0 . 1 3 0 . 0 0 1 2474 6.6 36 < 1 1 6 9 ‐‐ <0 . 1 2 . 6 0 . 0 0 1 2886 8.5 41 1 . 3 1 9 0 ‐‐ <0 . 1 2 . 7 0 . 0 0 8 2900 10.1 35 1 . 1 1 5 7 ‐‐ <0 . 1 2 . 4 0 . 0 0 4 3126 5.2 19 6 < 1 1 6 0 ‐‐ <0 . 1 3 . 2 0 . 0 0 4 4010 8.1 53 < 1 1 8 0 ‐‐ <0 . 1 3 . 2 0 . 0 0 8 4300 9.7 Pa g e  8  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐11 4 / 1 7 / 1 9 9 7 MW ‐11 1 0 / 1 5 / 1 9 9 7 MW ‐11 4 / 2 1 / 1 9 9 8 MW ‐11 1 0 / 2 7 / 1 9 9 8 MW ‐11 4 / 6 / 1 9 9 9 MW ‐11 1 0 / 2 8 / 1 9 9 9 MW ‐11 4 / 1 1 / 2 0 0 0 MW ‐11 1 0 / 1 1 / 2 0 0 0 MW ‐11 4 / 2 3 / 2 0 0 1 MW ‐11 1 0 / 8 / 2 0 0 1 MW ‐11 4 / 2 2 / 2 0 0 2 MW ‐11 1 0 / 1 7 / 2 0 0 2 MW ‐11 4 / 2 2 / 2 0 0 3 MW ‐11 1 0 / 1 5 / 2 0 0 3 MW ‐11 4 / 1 5 / 2 0 0 4 MW ‐11 1 0 / 6 / 2 0 0 4 MW ‐11 4 / 2 7 / 2 0 0 5 MW ‐11 1 0 / 1 9 / 2 0 0 5 MW ‐11 4 / 1 1 / 2 0 0 6 MW ‐11 1 0 / 2 5 / 2 0 0 6 MW ‐11 4 / 1 1 / 2 0 0 7 MW ‐11 1 0 / 2 2 / 2 0 0 7 MW ‐11 4 / 2 1 / 2 0 0 8 MW ‐11 1 0 / 1 3 / 2 0 0 8 MW ‐11 4 / 1 4 / 2 0 0 9 MW ‐11 1 0 / 2 1 / 2 0 0 9 MW ‐11 4 / 7 / 2 0 1 0 MW ‐11 1 0 / 6 / 2 0 1 0 MW ‐11 1 / 4 / 2 0 1 1 MW ‐11 5 / 5 / 2 0 1 1 MW ‐11 D 4 / 2 1 / 2 0 0 8 MW ‐11 D 1 0 / 1 3 / 2 0 0 8 MW ‐11 D 4 / 1 4 / 2 0 0 9 MW ‐11 D 1 0 / 2 1 / 2 0 0 9 MW ‐11 D 4 / 7 / 2 0 1 0 MW ‐11 D 1 0 / 6 / 2 0 1 0 MW ‐11 D 1 / 4 / 2 0 1 1 MW ‐11 D 5 / 5 / 2 0 1 1 MW ‐12 1 1 / 2 8 / 1 9 9 5 MW ‐12 4 / 1 8 / 1 9 9 6 MW ‐12 1 0 / 1 7 / 1 9 9 6 MW ‐12 4 / 1 7 / 1 9 9 7 MW ‐12 1 0 / 1 5 / 1 9 9 7 MW ‐12 4 / 2 1 / 1 9 9 8 MW ‐12 1 0 / 2 7 / 1 9 9 8 MW ‐12 4 / 6 / 1 9 9 9 MW ‐12 1 0 / 2 8 / 1 9 9 9 MW ‐12 4 / 1 0 / 2 0 0 0 MW ‐12 1 0 / 1 1 / 2 0 0 0 MW ‐12 4 / 2 3 / 2 0 0 1 MW ‐12 1 0 / 8 / 2 0 0 1 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 77 < 1 1 0 4 ‐‐ <0 . 1 < 1 0 . 0 0 2 986 2.5 12 8 < 2 1 2 7 ‐‐ <0 . 5 1 . 6 0 . 0 0 6 1657 7.1 57 < 2 8 4 ‐‐ <0 . 5 1 . 2 0 . 0 0 1 590 <2 38 < 2 1 2 1 ‐‐ <0 . 5 1 . 1 0 . 0 0 4 2807 4.6 67 < 2 1 4 2 ‐‐ <0 . 5 2 0 . 0 0 4 10470 4.6 61 < 2 1 4 6 ‐‐ <0 . 5 2 0 . 0 0 4 5010 4.6 36 . 3 < 2 1 3 0 ‐‐ <0 . 5 4 . 2 5 0 . 0 0 5 2100 <2 52 . 4 < 2 1 3 0 ‐‐ <0 . 5 < 1 0 . 0 0 5 1800 <2 67 < 2 2 0 7 ‐‐ <0 . 5 3 . 9 5 0 . 0 1 15070 7.76 56 . 9 9 < 2 1 2 2 ‐‐ <0 . 5 2 . 6 5 0 . 0 0 3 500 <2 53 . 0 8 < 2 1 3 0 ‐‐ <0 . 5 < 1 0 . 0 0 4 550 <2 46 . 4 9 < 2 1 4 7 ‐‐ <0 . 5 1 . 8 4 0 . 0 0 7 2769 3.07 53 . 9 4 < 2 1 4 0 ‐‐ <0 . 5 2 . 3 8 0 . 0 0 2 569 <2 55 . 8 3 < 2 1 1 4 ‐‐ <0 . 5 < 1 0 . 0 0 5 444 <2 71 . 8 6 < 2 9 8 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 357 <2 58 . 3 9 < 2 1 0 3 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 589 <2 56 . 4 8 < 2 1 0 6 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 2 5 8 < 2 51 . 2 < 2 9 4 ‐‐ <0 . 5 < 1 < 0 . 0 0 2 2 8 4 < 2 50 . 3 2 < 2 1 0 2 1 4 0 < 0 . 5 < 1 < 0 . 0 0 2 1 3 1 < 2 34 . 9 7 < 2 9 7 1 6 8 < 0 . 5 < 1 < 0 . 0 0 2 4 0 < 2 38 . 7 3 < 2 9 5 1 7 1 < 0 . 5 < 1 < 0 . 0 0 2 3 7 < 2 40 . 9 4 < 2 9 5 1 4 7 < 0 . 5 < 1 < 0 . 0 0 2 7 1 < 2 35 < 2 9 8 1 0 8 < 0 . 5 < 1 < 0 . 0 0 2 1 5 0 < 2 32 < 2 1 0 3 1 5 4 < 0 . 5 < 1 < 0 . 0 0 2 1 3 8 < 2 39 < 2 1 0 5 1 1 5 < 0 . 5 < 1 < 0 . 0 0 2 8 0 < 2 40 < 1 9 0 . 7 1 6 3 < 1 < 1 < 0 . 0 0 1 1 7 0 < 1 49 < 1 8 5 1 4 0 < 1 < 1 < 0 . 0 0 1 1 4 4 < 1 52 < 1 7 2 2 2 3 < 1 < 1 < 0 . 0 0 1 5 8 < 1 57 < 1 9 4 2 8 9 < 1 < 5 < 0 . 0 0 5 1040 <1 57 < 1 7 5 2 0 6 < 1 < 5 < 0 . 0 0 5 2 0 0 < 1 82 2 . 4 4 4 6 3 < 1 0 0 < 0 . 5 61 . 1 0.149 47100 3 3 . 2 82 < 2 1 9 2 < 1 0 0 < 0 . 5 19 . 3 0.056 17500 12.8 79 < 2 1 2 6 < 1 0 0 < 0 . 5 11 . 9 0.038 9280 7.3 77 < 1 3 8 8 8 . 2 < 1 1 . 6 7 0 . 0 0 5 1060 1.06 79 < 1 6 3 9 7 < 1 3 . 8 0 . 0 1 1 2340 2 77 < 1 4 5 6 5 < 1 1 . 0 8 0 . 0 0 3 477 <1 77 < 1 4 6 1 1 2 < 1 < 5 < 0 . 0 0 5 975 1.07 74 < 1 5 6 1 0 5 < 1 < 5 < 0 . 0 0 5 783 <1 10 2 5 0 ‐‐ 0. 2 4 . 7 0 . 0 1 1 12612 7.4 9< 1 2 6 ‐‐ 0. 2 2 . 8 0 . 0 1 1 8320 4.6 25 < 1 1 4 ‐‐ <0 . 1 1 . 4 0 . 0 0 3 2900 3.2 15 1 . 2 2 6 ‐‐ <0 . 1 1 . 8 0 . 0 1 4 2607 4.2 12 4 < 2 1 8 ‐‐ <0 . 5 < 1 0 . 0 0 6 2635 3.6 7 2 . 3 1 7 3 ‐‐ <0 . 5 7 . 6 0 . 1 1 3 69734 3 9 . 1 8< 2 1 1 ‐‐ <0 . 5 < 1 0 . 0 0 8 1857 <2 8< 2 1 5 ‐‐ <0 . 5 2 . 2 0 . 0 0 5 4683 <2 15 3 . 4 6 4 ‐‐ <0 . 5 9 . 9 0 . 0 4 3 36258 13.8 5. 6 < 2 1 9 ‐‐ <0 . 5 1 . 4 4 0 . 0 5 6 5800 1 5 . 2 2 8. 8 8 < 2 2 3 ‐‐ <0 . 5 1 . 9 6 0 . 0 2 4 12000 8.16 8< 2 2 9 ‐‐ <0 . 5 2 . 9 4 0 . 0 1 2 15313 3.55 10 . 4 < 2 1 1 ‐‐ <0 . 5 3 . 8 8 0 . 0 1 5 3765 3.04 Pa g e  9  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐12 4 / 2 2 / 2 0 0 2 MW ‐12 1 0 / 1 7 / 2 0 0 2 MW ‐12 4 / 2 2 / 2 0 0 3 MW ‐12 1 0 / 1 5 / 2 0 0 3 MW ‐12 4 / 1 5 / 2 0 0 4 MW ‐12 1 0 / 6 / 2 0 0 4 MW ‐12 4 / 2 7 / 2 0 0 5 MW ‐12 1 0 / 1 9 / 2 0 0 5 MW ‐12 4 / 1 1 / 2 0 0 6 MW ‐12 1 0 / 2 5 / 2 0 0 6 MW ‐12 4 / 1 1 / 2 0 0 7 MW ‐12 1 0 / 2 2 / 2 0 0 7 MW ‐12 4 / 2 1 / 2 0 0 8 MW ‐12 1 0 / 1 3 / 2 0 0 8 MW ‐12 4 / 1 4 / 2 0 0 9 MW ‐12 1 0 / 2 1 / 2 0 0 9 MW ‐12 4 / 7 / 2 0 1 0 MW ‐12 1 0 / 6 / 2 0 1 0 MW ‐12 D 4 / 2 1 / 2 0 0 8 MW ‐12 D 1 0 / 1 3 / 2 0 0 8 MW ‐12 D 4 / 1 4 / 2 0 0 9 MW ‐12 D 1 0 / 2 1 / 2 0 0 9 MW ‐12 D 4 / 7 / 2 0 1 0 MW ‐12 D 1 0 / 6 / 2 0 1 0 MW ‐20 S 1 / 4 / 2 0 1 1 MW ‐20 S 5 / 5 / 2 0 1 1 MW ‐20 S 9 / 7 / 2 0 1 1 MW ‐20 S 1 / 1 2 / 2 0 1 2 MW ‐20 S 5 / 7 / 2 0 1 2 MW ‐20 S 9 / 4 / 2 0 1 2 MW ‐20 S 1 / 7 / 2 0 1 3 MW ‐20 S 5 / 7 / 2 0 1 3 MW ‐20 S 9 / 4 / 2 0 1 3 MW ‐20 S 1 / 1 3 / 2 0 1 4 MW ‐20 S 5 / 5 / 2 0 1 4 MW ‐20 S 9 / 8 / 2 0 1 4 MW ‐20 S 1 / 5 / 2 0 1 5 MW ‐20 S 5 / 4 / 2 0 1 5 MW ‐20 S 9 / 1 / 2 0 1 5 MW ‐20 S 1 / 4 / 2 0 1 6 MW ‐20 S 5 / 2 / 2 0 1 6 MW ‐20 D 1 / 4 / 2 0 1 1 MW ‐20 D 5 / 5 / 2 0 1 1 MW ‐20 D 9 / 7 / 2 0 1 1 MW ‐20 D 1 / 1 2 / 2 0 1 2 MW ‐20 D 5 / 7 / 2 0 1 2 MW ‐20 D 9 / 4 / 2 0 1 2 MW ‐20 D 1 / 7 / 2 0 1 3 MW ‐20 D 5 / 7 / 2 0 1 3 MW ‐20 D 9 / 4 / 2 0 1 3 MW ‐20 D 1 / 1 3 / 2 0 1 4 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 7. 9 6 < 2 2 7 ‐‐ <0 . 5 3 . 8 0 . 0 1 9 9200 4.1 8. 4 9 2 . 3 5 4 0 ‐‐ <0 . 5 6 . 1 3 0 . 0 4 1 19891 8.07 8. 1 6 < 2 3 3 ‐‐ <0 . 5 3 . 7 2 0 . 0 0 7 3379 <2 7. 9 < 2 1 5 ‐‐ <0 . 5 1 . 8 8 0 . 0 0 6 4066 <2 11 . 1 3 . 0 4 6 4 ‐‐ <0 . 5 10 . 7 1 0.043 37051 10.85 10 0 . 1 < 2 2 8 ‐‐ <0 . 5 4 . 2 8 0 . 0 1 6 11487 3.41 8. 1 3 < 2 2 8 ‐‐ <0 . 5 4 . 5 2 0 . 0 1 9 13050 4.92 9. 0 6 < 2 1 5 ‐‐ <0 . 5 1 . 2 3 0 . 0 1 3948 <2 8. 9 < 2 1 7 < 1 0 0 < 0 . 5 3 . 0 4 0 . 0 2 5 5701 2.84 7. 8 6 3 . 5 1 3 8 < 1 0 0 < 0 . 5 11 . 0 3 0.044 18879 8.98 9. 0 6 < 2 1 1 < 1 0 0 < 0 . 5 < 1 0 . 0 2 1 1683 <2 10 . 5 5 < 2 1 0 < 1 0 0 < 0 . 5 < 1 0 . 0 1 2657 <2 11 < 2 1 4 < 1 0 0 < 0 . 5 1 . 5 0 . 0 2 5 3780 2.03 14 < 2 1 3 < 1 0 0 < 0 . 5 1 . 2 2 0 . 0 3 1 5150 4.44 9. 3 < 2 1 0 < 1 0 0 < 0 . 5 < 1 0 . 0 4 3 1740 <2 11 < 1 7 . 6 8 < 5 0 < 1 < 1 0 . 0 4 3 3800 6.07 9. 7 < 1 1 0 < 5 0 < 1 < 1 0 . 0 5 2 1700 1 12 < 1 8 < 5 0 < 1 < 1 0 . 0 1 2 3490 1.25 26 < 2 1 7 < 1 0 0 < 0 . 5 < 1 < 0 . 0 0 2 5820 <2 27 < 2 1 7 < 1 0 0 < 0 . 5 < 1 < 0 . 0 0 2 5750 <2 30 < 2 1 8 < 1 0 0 < 0 . 5 < 1 < 0 . 0 0 2 5770 <2 27 < 1 1 6 . 5 < 5 0 < 1 < 1 < 0 . 0 0 1 6270 <1 28 < 1 2 0 0 < 5 0 < 1 < 1 < 0 . 0 0 1 5950 <1 28 < 1 1 8 < 5 0 < 1 < 1 < 0 . 0 0 1 5820 <1 9. 4 < 1 1 9 < 5 0 < 1 < 5 < 0 . 0 0 5 2890 <1 6. 1 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 3190 <1 5. 9 1 . 0 3 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 3070 <1 5. 8 1 . 2 8 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 3100 <1 5. 4 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2960 <1 5. 4 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 3090 <1 5. 2 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2350 <1 5. 2 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2570 <1 4. 9 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2850 <1 5. 6 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2580 <1 5. 6 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2460 <1 5. 3 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2720 <1 4. 8 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2440 <1 5 < 1 1 8 < 5 0 < 1 < 5 < 0 . 0 0 5 2480 <1 4. 7 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 2530 <1 5. 9 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2620 <1 5. 8 < 1 1 6 7 2 < 1 < 5 < 0 . 0 0 5 2400 <1 6. 5 < 1 6 2 < 5 0 < 1 < 5 < 0 . 0 0 5 9 7 < 1 6. 1 < 1 6 4 < 5 0 < 1 < 5 < 0 . 0 0 5 7 8 < 1 6. 4 < 1 6 3 < 5 0 < 1 < 5 < 0 . 0 0 5 5 5 < 1 6. 4 < 1 6 6 < 5 0 1 . 5 3 < 5 < 0 . 0 0 5 5 9 1 2 . 5 6. 4 < 1 6 4 < 5 0 < 1 < 5 < 0 . 0 0 5 4 1 < 1 6. 3 < 1 6 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2 3 < 1 6. 3 < 1 6 5 < 5 0 < 1 < 5 < 0 . 0 0 5 4 4 < 1 6. 4 < 1 6 4 < 5 0 < 1 < 5 < 0 . 0 0 5 6 1 < 1 6. 1 < 1 6 6 < 5 0 < 1 < 5 < 0 . 0 0 5 4 0 < 1 6. 4 < 1 6 6 < 5 0 < 1 < 5 < 0 . 0 0 5 6 3 < 1 Pa g e  10  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐20 D 5 / 5 / 2 0 1 4 MW ‐20 D 9 / 8 / 2 0 1 4 MW ‐20 D 1 / 5 / 2 0 1 5 MW ‐20 D 5 / 4 / 2 0 1 5 MW ‐20 D 9 / 1 / 2 0 1 5 MW ‐20 D 1 / 4 / 2 0 1 6 MW ‐20 D 5 / 2 / 2 0 1 6 MW ‐21 S 1 / 4 / 2 0 1 1 MW ‐21 S 5 / 5 / 2 0 1 1 MW ‐21 S 9 / 7 / 2 0 1 1 MW ‐21 S 1 / 1 2 / 2 0 1 2 MW ‐21 S 5 / 7 / 2 0 1 2 MW ‐21 S 9 / 4 / 2 0 1 2 MW ‐21 S 1 / 7 / 2 0 1 3 MW ‐21 S 5 / 7 / 2 0 1 3 MW ‐21 S 9 / 3 / 2 0 1 3 MW ‐21 S 1 / 1 3 / 2 0 1 4 MW ‐21 S 5 / 5 / 2 0 1 4 MW ‐21 S 9 / 8 / 2 0 1 4 MW ‐21 S 1 / 5 / 2 0 1 5 MW ‐21 S 5 / 4 / 2 0 1 5 MW ‐21 S 9 / 1 / 2 0 1 5 MW ‐21 S 9 / 1 0 / 2 0 1 5 MW ‐21 S 1 / 4 / 2 0 1 6 MW ‐21 S 5 / 2 / 2 0 1 6 MW ‐21 D 1 / 4 / 2 0 1 1 MW ‐21 D 5 / 5 / 2 0 1 1 MW ‐21 D 9 / 7 / 2 0 1 1 MW ‐21 D 1 / 1 2 / 2 0 1 2 MW ‐21 D 5 / 7 / 2 0 1 2 MW ‐21 D 9 / 4 / 2 0 1 2 MW ‐21 D 1 / 7 / 2 0 1 3 MW ‐21 D 5 / 7 / 2 0 1 3 MW ‐21 D 9 / 3 / 2 0 1 3 MW ‐21 D 1 / 1 3 / 2 0 1 4 MW ‐21 D 5 / 5 / 2 0 1 4 MW ‐21 D 9 / 8 / 2 0 1 4 MW ‐21 D 1 / 5 / 2 0 1 5 MW ‐21 D 5 / 4 / 2 0 1 5 MW ‐21 D 9 / 1 / 2 0 1 5 MW ‐21 D 1 / 4 / 2 0 1 6 MW ‐21 D 5 / 2 / 2 0 1 6 MW ‐22 S 1 / 1 2 / 2 0 1 2 MW ‐22 S 5 / 7 / 2 0 1 2 MW ‐22 S 9 / 4 / 2 0 1 2 MW ‐22 S 1 / 7 / 2 0 1 3 MW ‐22 S 5 / 7 / 2 0 1 3 MW ‐22 S 9 / 3 / 2 0 1 3 MW ‐22 S 1 / 1 3 / 2 0 1 4 MW ‐22 S 5 / 5 / 2 0 1 4 MW ‐22 S 9 / 8 / 2 0 1 4 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 6. 4 < 1 6 4 < 5 0 < 1 < 5 < 0 . 0 0 5 3 4 < 1 6. 2 < 1 6 5 < 5 0 < 1 < 5 < 0 . 0 0 5 4 3 < 1 6. 2 1 . 0 5 6 5 < 5 0 < 1 < 5 < 0 . 0 0 5 4 0 < 1 6. 3 < 1 6 8 < 5 0 < 1 < 5 < 0 . 0 0 5 3 2 < 1 6 < 1 6 4 < 5 0 < 1 < 5 < 0 . 0 0 5 5 9 < 1 6. 8 < 1 6 9 < 5 0 < 1 < 5 < 0 . 0 0 5 1 2 6 < 1 7 < 1 6 5 9 4 < 1 < 5 < 0 . 0 0 5 4 6 < 1 29 32 . 3 30 4 1 7 < 1 < 5 < 0 . 0 0 5 6 8 < 1 46 28 . 6 32 2 9 0 < 1 < 5 < 0 . 0 0 5 1 8 < 1 30 33 . 8 33 4 4 9 < 1 < 5 < 0 . 0 0 5 1 4 < 1 35 29 . 5 36 4 2 3 < 1 < 5 < 0 . 0 0 5 8 9 < 1 54 30 . 2 43 3 4 3 < 1 < 5 < 0 . 0 0 5 3 4 < 1 38 44 . 7 46 4 8 4 < 1 < 5 < 0 . 0 0 5 < 1 0 < 1 54 25 . 2 46 3 8 9 < 1 < 5 < 0 . 0 0 5 1 7 < 1 62 21 . 1 50 2 6 1 < 1 < 5 < 0 . 0 0 5 < 1 0 < 1 45 39 . 7 57 3 8 0 < 1 < 5 < 0 . 0 0 5 6 1 < 1 26 18 . 5 38 2 9 7 < 1 < 5 < 0 . 0 0 5 2 7 < 1 61 21 . 2 58 2 1 5 < 1 < 5 < 0 . 0 0 5 1 8 7 < 1 33 31 . 6 49 3 2 4 < 1 < 5 < 0 . 0 0 5 3 0 < 1 19 32 . 9 35 2 7 9 < 1 < 5 < 0 . 0 0 5 2 9 < 1 35 21 . 2 50 1 8 5 < 1 < 5 < 0 . 0 0 5 2 9 2 < 1 24 43 . 5 45 2 4 8 < 1 < 5 < 0 . 0 0 5 1 7 8 < 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 20 39 . 5 45 2 5 4 < 1 < 5 < 0 . 0 0 5 5 1 < 1 39 16 . 8 40 2 3 5 < 1 < 5 < 0 . 0 0 5 7 0 < 1 31 0 <1 4 7 2 2 7 < 1 < 5 < 0 . 0 0 5 2 3 1 < 1 34 0 <1 4 7 2 1 6 < 1 < 5 < 0 . 0 0 5 2 3 8 < 1 32 0 <1 4 3 2 1 0 < 1 < 5 < 0 . 0 0 5 2 1 2 < 1 34 0 <1 4 8 2 1 7 < 1 < 5 < 0 . 0 0 5 2 0 8 < 1 35 0 <1 5 0 2 1 5 < 1 < 5 < 0 . 0 0 5 2 5 0 < 1 32 0 <1 4 9 2 1 6 < 1 < 5 < 0 . 0 0 5 2 1 8 < 1 34 0 <1 4 8 2 1 3 < 1 < 5 < 0 . 0 0 5 2 3 5 < 1 34 0 <1 4 6 1 9 7 < 1 < 5 < 0 . 0 0 5 1 5 1 < 1 31 0 <1 4 9 2 1 7 < 1 < 5 < 0 . 0 0 5 2 5 9 < 1 32 0 <1 4 7 2 0 9 < 1 < 5 < 0 . 0 0 5 1 7 2 < 1 33 0 <1 4 6 2 0 0 < 1 < 5 < 0 . 0 0 5 1 5 8 < 1 14 0 < 1 4 3 2 1 0 < 1 < 5 < 0 . 0 0 5 1 9 2 < 1 27 0 <1 4 2 2 0 5 < 1 < 5 < 0 . 0 0 5 1 9 6 < 1 29 0 <1 4 9 2 1 9 < 1 < 5 < 0 . 0 0 5 701 <1 25 0 <1 4 3 2 1 5 < 1 < 5 < 0 . 0 0 5 482 <1 27 0 <1 4 9 2 4 5 < 1 < 5 < 0 . 0 0 5 376 <1 30 0 <1 4 6 2 9 6 < 1 < 5 < 0 . 0 0 5 2 0 2 < 1 4. 7 4 . 6 8 7 5 5 9 < 1 < 5 < 0 . 0 0 5 17000 <1 5 1 . 5 9 8 5 5 4 8 < 1 < 5 < 0 . 0 0 5 19400 1.5 7. 8 < 1 7 1 6 3 5 < 1 < 5 < 0 . 0 0 5 14100 <1 1. 7 < 1 7 2 6 0 9 < 1 < 5 < 0 . 0 0 5 13900 <1 65 < 1 4 9 90 3 <1 < 5 < 0 . 0 0 5 9360 <1 6. 9 < 1 7 2 6 7 2 < 1 < 5 < 0 . 0 0 5 13700 <1 40 < 1 5 7 82 9 <1 < 5 < 0 . 0 0 5 7770 <1 5. 7 < 1 6 4 6 5 1 < 1 < 5 < 0 . 0 0 5 12500 <1 11 < 1 6 3 6 9 7 < 1 < 5 < 0 . 0 0 5 12400 <1 Pa g e  11  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐22 S 1 / 5 / 2 0 1 5 MW ‐22 S 5 / 4 / 2 0 1 5 MW ‐22 S 9 / 1 / 2 0 1 5 MW ‐22 S 1 / 4 / 2 0 1 6 MW ‐22 S 5 / 2 / 2 0 1 6 MW ‐22 D 1 / 1 2 / 2 0 1 2 MW ‐22 D 5 / 7 / 2 0 1 2 MW ‐22 D 9 / 5 / 2 0 1 2 MW ‐22 D 1 / 7 / 2 0 1 3 MW ‐22 D 5 / 8 / 2 0 1 3 MW ‐22 D 9 / 4 / 2 0 1 3 MW ‐22 D 1 / 1 3 / 2 0 1 4 MW ‐22 D 5 / 5 / 2 0 1 4 MW ‐22 D 9 / 8 / 2 0 1 4 MW ‐22 D 1 / 5 / 2 0 1 5 MW ‐22 D 5 / 4 / 2 0 1 5 MW ‐22 D 9 / 1 / 2 0 1 5 MW ‐22 D 1 / 4 / 2 0 1 6 MW ‐22 D 5 / 2 / 2 0 1 6 MW ‐23 D 1 / 4 / 2 0 1 1 MW ‐23 D 5 / 5 / 2 0 1 1 MW ‐23 D 9 / 7 / 2 0 1 1 MW ‐23 D 1 / 1 2 / 2 0 1 2 MW ‐23 D 5 / 7 / 2 0 1 2 MW ‐23 D 9 / 4 / 2 0 1 2 MW ‐23 D 1 / 7 / 2 0 1 3 MW ‐23 D 5 / 8 / 2 0 1 3 MW ‐23 D 9 / 4 / 2 0 1 3 MW ‐23 D 1 / 1 3 / 2 0 1 4 MW ‐23 D 5 / 5 / 2 0 1 4 MW ‐23 D 9 / 8 / 2 0 1 4 MW ‐23 D 1 / 5 / 2 0 1 5 MW ‐23 D 5 / 4 / 2 0 1 5 MW ‐23 D 9 / 1 / 2 0 1 5 MW ‐23 D 1 / 4 / 2 0 1 6 MW ‐23 D 5 / 2 / 2 0 1 6 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 1 5 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L Su l f a t e A r s e n i c B a r i u m B o r o n C a d m i u m C h r o m i u m C o p p e r I r o n L e a d 6. 8 < 1 7 2 6 2 6 < 1 < 5 < 0 . 0 0 5 14700 <1 3. 9 1 . 9 8 9 0 5 2 3 < 1 < 5 < 0 . 0 0 5 7250 <1 4. 3 < 1 8 0 5 8 0 < 1 < 5 < 0 . 0 0 5 17900 <1 13 1 . 2 6 7 8 5 6 5 < 1 < 5 < 0 . 0 0 5 7340 <1 50 < 1 5 9 86 5 <1 < 5 < 0 . 0 0 5 11200 <1 11 0 1 . 2 6 4 6 74 3 <1 < 5 0 . 0 0 7 1010 5.4 98 < 1 3 2 71 1 <1 < 5 < 0 . 0 0 5 2 4 < 1 10 0 < 1 4 2 6 2 2 < 1 < 5 < 0 . 0 0 5 829 2.36 99 < 1 3 2 79 3 <1 < 5 < 0 . 0 0 5 3 6 < 1 ‐‐ <1 3 6 6 5 7 < 1 < 5 < 0 . 0 0 5 2 5 6 1 . 3 2 95 < 1 4 9 77 3 <1 < 5 < 0 . 0 0 5 776 2.25 94 < 1 4 2 77 1 <1 < 5 < 0 . 0 0 5 342 1.11 92 < 1 3 9 78 9 <1 < 5 < 0 . 0 0 5 2 6 3 < 1 92 < 1 4 1 77 4 <1 < 5 < 0 . 0 0 5 1 6 2 < 1 11 0 1 4 3 76 0 <1 < 5 < 0 . 0 0 5 1 6 4 < 1 11 0 < 1 4 6 75 7 <1 < 5 < 0 . 0 0 5 1 3 9 < 1 ‐‐ <1 4 4 74 6 <1 < 5 < 0 . 0 0 5 1 0 1 < 1 12 0 < 1 4 4 72 5 <1 < 5 < 0 . 0 0 5 5 7 < 1 12 0 1 . 2 7 4 6 80 6 <1 < 5 < 0 . 0 0 5 6 8 < 1 30 < 1 7 1 < 5 0 < 1 < 5 < 0 . 0 0 5 326 <1 46 < 1 3 8 < 5 0 < 1 < 5 < 0 . 0 0 5 592 <1 31 < 1 3 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1050 <1 23 < 1 3 5 < 5 0 < 1 < 5 < 0 . 0 0 5 1410 <1 31 < 1 9 3 < 5 0 < 1 < 5 < 0 . 0 0 5 1700 1.15 31 < 1 1 0 8 < 5 0 < 1 < 5 < 0 . 0 0 5 517 <1 33 < 1 4 9 < 5 0 < 1 < 5 < 0 . 0 0 5 522 <1 31 < 1 6 8 < 5 0 < 1 < 5 < 0 . 0 0 5 7 1 < 1 30 < 1 1 1 2 < 5 0 < 1 < 5 < 0 . 0 0 5 2 1 1 < 1 27 < 1 2 9 < 5 0 < 1 < 5 < 0 . 0 0 5 969 <1 31 < 1 8 8 < 5 0 < 1 < 5 < 0 . 0 0 5 696 <1 39 < 1 4 8 < 5 0 < 1 < 5 < 0 . 0 0 5 1430 <1 32 < 1 5 3 < 5 0 < 1 < 5 < 0 . 0 0 5 852 <1 31 < 1 7 4 < 5 0 < 1 < 5 < 0 . 0 0 5 404 <1 29 < 1 1 1 0 < 5 0 < 1 < 5 < 0 . 0 0 5 618 <1 26 < 1 5 1 < 5 0 < 1 < 5 < 0 . 0 0 5 2 0 2 < 1 22 < 1 3 4 6 0 < 1 < 5 < 0 . 0 0 5 1340 <1 No t e s : 1.2.3.4.5.6.7.8.9. 10 . °C  in d i c a t e s  te m p e r a t u r e  me a s u r e d  in  de g r e e s  ce l s i u s mV  in d i c a t e s  ox i d a t i o n / r e d u c t i o n  po t e n t i a l  me a s u r e d  in  mi l l i v o l t s µΩ /c m  in d i c a t e s  sp e c i f i c  co n d u c t i v i t y  me a s u r e d  in  mi c r o m h o s  pe r  ce n t i m e t e r mg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi l l i g r a m s  pe r  li t e r µg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi c r o g r a m s  pe r  li t e r SU  in d i c a t e s  pH  va l u e s  me a s u r e d  in  st a n d a r d  un i t s NT U  in d i c a t e s  tu r b i d i t y  va l u e s  me a s u r e d  in  Ne p h a l o m e t r i c  Tu r b i d i t y  Un i t s Pa r a m e t e r s  ar e  co m p a r e d  to  st a n d a r d s  fo u n d  in  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  an d  Wa t e r  Qu a l i t y  St a n d a r d s  Ap p l i c a b l e  to  the  Groundwaters  of   No r t h  Ca r o l i n a 2L  St a n d a r d s  ar e  es t a b l i s h e d  as  pa r t  of  15 A  NC A C  02 L  .0 2 0 2   In t e r i m  Ma x i m u m  Al l o w a b l e  Co n c e n t r a t i o n s  (I M A C s )  ca n  be  fo u n d  in  Ap p e n d i x  #1  of  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  and  Water  Quality  Standards   Ap p l i c a b l e  to  th e  Gr o u n d w a t e r s  of  No r t h  Ca r o l i n a Pa g e  12  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐9 1 1 / 2 9 / 1 9 9 3 MW ‐9 4 / 4 / 1 9 9 4 MW ‐9 5 / 2 3 / 1 9 9 4 MW ‐9 1 1 / 2 8 / 1 9 9 4 MW ‐9 5 / 8 / 1 9 9 5 MW ‐9 1 1 / 2 8 / 1 9 9 5 MW ‐9 4 / 1 8 / 1 9 9 6 MW ‐9 1 0 / 1 7 / 1 9 9 6 MW ‐9 4 / 1 7 / 1 9 9 7 MW ‐9 1 0 / 1 5 / 1 9 9 7 MW ‐9 4 / 2 1 / 1 9 9 8 MW ‐9 1 0 / 2 7 / 1 9 9 8 MW ‐9 4 / 6 / 1 9 9 9 MW ‐9 1 0 / 2 8 / 1 9 9 9 MW ‐9 4 / 1 0 / 2 0 0 0 MW ‐9 1 0 / 1 1 / 2 0 0 0 MW ‐9 4 / 2 3 / 2 0 0 1 MW ‐9 1 0 / 8 / 2 0 0 1 MW ‐9 4 / 2 2 / 2 0 0 2 MW ‐9 1 0 / 1 7 / 2 0 0 2 MW ‐9 4 / 2 2 / 2 0 0 3 MW ‐9 1 0 / 1 5 / 2 0 0 3 MW ‐9 4 / 1 5 / 2 0 0 4 MW ‐9 1 0 / 6 / 2 0 0 4 MW ‐9 4 / 2 7 / 2 0 0 5 MW ‐9 1 0 / 1 9 / 2 0 0 5 MW ‐9 4 / 1 1 / 2 0 0 6 MW ‐9 1 0 / 2 5 / 2 0 0 6 MW ‐9 4 / 1 1 / 2 0 0 7 MW ‐9 1 0 / 2 2 / 2 0 0 7 MW ‐9 4 / 2 1 / 2 0 0 8 MW ‐9 1 0 / 1 3 / 2 0 0 8 MW ‐9 4 / 1 4 / 2 0 0 9 MW ‐9 1 0 / 2 1 / 2 0 0 9 MW ‐9 4 / 7 / 2 0 1 0 MW ‐9 1 0 / 6 / 2 0 1 0 MW ‐9 1 / 4 / 2 0 1 1 MW ‐9 5 / 5 / 2 0 1 1 MW ‐9D 4 / 2 1 / 2 0 0 8 MW ‐9D 1 0 / 1 3 / 2 0 0 8 MW ‐9D 4 / 1 4 / 2 0 0 9 MW ‐9D 1 0 / 2 1 / 2 0 0 9 MW ‐9D 4 / 7 / 2 0 1 0 MW ‐9D 1 0 / 6 / 2 0 1 0 MW ‐9D 1 / 4 / 2 0 1 1 MW ‐9D 5 / 5 / 2 0 1 1 MW ‐9D 9 / 7 / 2 0 1 1 MW ‐10 1 1 / 2 9 / 1 9 9 3 MW ‐10 4 / 4 / 1 9 9 4 MW ‐10 5 / 2 3 / 1 9 9 4 MW ‐10 1 1 / 2 8 / 1 9 9 4 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 14 2 9 ‐‐ ‐ ‐ 0. 0 1 7 ‐‐ <5 < 0 . 1 ‐‐ 46 7 2 ‐‐ ‐ ‐ <0 . 0 0 2 ‐‐ 4. 3 < 0 . 1 ‐‐ 38 9 1 ‐‐ ‐ ‐ 0. 0 2 1 ‐‐ 1. 9 < 0 . 1 ‐‐ 49 6 1 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ 3. 8 < 0 . 1 ‐‐ 52 0 0 ‐‐ ‐ ‐ 0. 0 1 1 ‐‐ <1 < 0 . 1 ‐‐ 52 9 6 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ 5. 8 < 0 . 1 ‐‐ 55 7 0 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <1 < 0 . 1 ‐‐ 57 0 0 ‐‐ ‐ ‐ 0. 0 0 7 ‐‐ <1 < 0 . 1 ‐‐ 60 9 1 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <1 < 0 . 1 ‐‐ 62 2 2 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 70 2 7 ‐‐ ‐ ‐ 0. 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 63 3 1 ‐‐ ‐ ‐ 0. 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 68 6 1 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 64 5 5 ‐‐ ‐ ‐ 0. 0 0 6 ‐‐ <2 < 0 . 1 ‐‐ 71 3 2 ‐‐ ‐ ‐ 0. 0 2 ‐‐ <2 < 0 . 1 ‐‐ 70 4 8 ‐‐ ‐ ‐ 0. 0 1 8 ‐‐ <2 < 0 . 1 ‐‐ 66 9 3 ‐‐ ‐ ‐ 0. 0 2 1 ‐‐ <2 < 0 . 1 ‐‐ 67 2 0 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 5 50 0 0 ‐‐ ‐ ‐ 0. 0 2 9 ‐‐ <2 < 0 . 1 6 2 4 56 7 7 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 65 3 5 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 3 64 6 3 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 4 . 9 7 67 7 6 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 65 4 3 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 69 9 3 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 70 3 5 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 8 . 6 2 67 8 1 ‐‐ <4 0 < 0 . 0 0 5 ‐‐ <2 < 0 . 1 1 7 . 3 69 4 0 ‐‐ 2. 8 0 . 0 0 5 ‐‐ <2 < 0 . 2 7 . 2 8 70 5 8 ‐‐ 2. 1 6 < 0 . 0 0 5 ‐‐ <2 < 0 . 1 1 6 . 2 51 9 6 ‐‐ 3. 1 5 < 0 . 0 0 5 ‐‐ <2 < 0 . 5 5 . 1 1 62 5 0 ‐‐ 3. 6 3 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 4 . 2 9 59 5 0 ‐‐ 49 . 9 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 . 5 59 8 0 ‐‐ 2. 6 8 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 . 6 7 59 1 0 ‐‐ 2. 0 7 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 1 4 61 6 0 ‐‐ 2. 1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 4 7 55 1 0 ‐‐ 2. 9 6 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 1 6 66 4 0 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 8 64 7 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 4 7 10 6 0 ‐‐ 3. 9 4 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 2 2 . 8 87 0 ‐‐ 3. 2 2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 7 . 6 6 82 5 ‐‐ 3. 2 9 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 5 . 0 4 90 1 ‐‐ 3. 9 3 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 6 0 . 4 85 0 ‐‐ 3. 6 5 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 5 3 69 2 ‐‐ 3. 0 6 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 0 . 2 71 4 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 7 3 70 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 4 71 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 2 1 88 3 ‐‐ ‐ ‐ <0 . 0 1 ‐‐ <5 < 0 . 1 ‐‐ 44 0 ‐‐ ‐ ‐ 0. 0 0 4 ‐‐ 3. 5 < 0 . 1 ‐‐ 41 2 ‐‐ ‐ ‐ 0. 0 2 8 ‐‐ <1 < 0 . 1 ‐‐ 45 9 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ 1. 7 < 0 . 1 ‐‐ Pa g e  13  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐10 5 / 8 / 1 9 9 5 MW ‐10 1 1 / 2 8 / 1 9 9 5 MW ‐10 4 / 1 8 / 1 9 9 6 MW ‐10 1 0 / 1 7 / 1 9 9 6 MW ‐10 4 / 1 7 / 1 9 9 7 MW ‐10 1 0 / 1 5 / 1 9 9 7 MW ‐10 4 / 2 1 / 1 9 9 8 MW ‐10 1 0 / 2 7 / 1 9 9 8 MW ‐10 4 / 6 / 1 9 9 9 MW ‐10 1 0 / 2 8 / 1 9 9 9 MW ‐10 4 / 1 0 / 2 0 0 0 MW ‐10 1 0 / 1 1 / 2 0 0 0 MW ‐10 4 / 2 3 / 2 0 0 1 MW ‐10 1 0 / 8 / 2 0 0 1 MW ‐10 4 / 2 2 / 2 0 0 2 MW ‐10 1 0 / 1 7 / 2 0 0 2 MW ‐10 4 / 2 2 / 2 0 0 3 MW ‐10 1 0 / 1 5 / 2 0 0 3 MW ‐10 4 / 1 5 / 2 0 0 4 MW ‐10 1 0 / 6 / 2 0 0 4 MW ‐10 4 / 2 7 / 2 0 0 5 MW ‐10 1 0 / 1 9 / 2 0 0 5 MW ‐10 4 / 1 1 / 2 0 0 6 MW ‐10 1 0 / 2 5 / 2 0 0 6 MW ‐10 4 / 1 1 / 2 0 0 7 MW ‐10 1 0 / 2 2 / 2 0 0 7 MW ‐10 4 / 2 1 / 2 0 0 8 MW ‐10 1 0 / 1 3 / 2 0 0 8 MW ‐10 4 / 1 4 / 2 0 0 9 MW ‐10 1 0 / 2 1 / 2 0 0 9 MW ‐10 4 / 7 / 2 0 1 0 MW ‐10 1 0 / 6 / 2 0 1 0 MW ‐10 1 / 4 / 2 0 1 1 MW ‐10 5 / 5 / 2 0 1 1 MW ‐10 D 4 / 2 1 / 2 0 0 8 MW ‐10 D 1 0 / 1 3 / 2 0 0 8 MW ‐10 D 4 / 1 4 / 2 0 0 9 MW ‐10 D 1 0 / 2 1 / 2 0 0 9 MW ‐10 D 4 / 7 / 2 0 1 0 MW ‐10 D 1 0 / 6 / 2 0 1 0 MW ‐10 D 1 / 4 / 2 0 1 1 MW ‐10 D 5 / 5 / 2 0 1 1 MW ‐10 D 9 / 7 / 2 0 1 1 MW ‐11 1 1 / 2 9 / 1 9 9 3 MW ‐11 4 / 4 / 1 9 9 4 MW ‐11 5 / 2 3 / 1 9 9 4 MW ‐11 1 1 / 2 8 / 1 9 9 4 MW ‐11 5 / 8 / 1 9 9 5 MW ‐11 1 1 / 2 8 / 1 9 9 5 MW ‐11 4 / 1 8 / 1 9 9 6 MW ‐11 1 0 / 1 7 / 1 9 9 6 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 52 0 ‐‐ ‐ ‐ 0. 0 0 6 ‐‐ <1 < 0 . 1 ‐‐ 37 8 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ 1. 1 < 0 . 1 ‐‐ 33 0 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <1 < 0 . 1 ‐‐ 24 0 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <1 < 0 . 1 ‐‐ 33 4 ‐‐ ‐ ‐ 0. 0 0 9 ‐‐ <1 < 0 . 1 ‐‐ 32 1 ‐‐ ‐ ‐ 0. 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 37 1 ‐‐ ‐ ‐ 0. 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 71 2 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 74 7 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 ‐‐ 77 0 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 0 . 7 2 ‐‐ 69 3 ‐‐ ‐ ‐ 0. 0 0 6 ‐‐ <2 0 . 1 5 ‐‐ 10 2 7 ‐‐ ‐ ‐ 0. 0 3 ‐‐ <2 0 . 9 1 ‐‐ 90 4 ‐‐ ‐ ‐ 0. 0 1 2 ‐‐ <2 0 . 3 9 ‐‐ 11 7 1 ‐‐ ‐ ‐ 0. 0 0 9 ‐‐ <2 < 0 . 1 5 6 90 0 ‐‐ ‐ ‐ 0. 0 0 5 ‐‐ <2 < 0 . 1 6 . 2 6 62 2 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 11 7 0 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 5 5 17 4 1 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 2 . 4 1 19 9 5 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 16 3 3 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 18 2 9 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 17 0 8 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 5 . 7 3 18 2 6 ‐‐ <4 0 < 0 . 0 0 5 ‐‐ <2 < 0 . 1 1 5 . 7 18 4 6 ‐‐ 7. 3 5 < 0 . 0 0 5 ‐‐ <2 < 0 . 2 5 . 1 6 19 5 0 ‐‐ 7. 7 1 0 . 0 0 9 ‐‐ <2 < 0 . 1 1 6 . 9 44 1 ‐‐ 3. 1 2 < 0 . 0 0 5 ‐‐ <2 < 0 . 5 1 . 4 4 19 4 0 ‐‐ 7. 4 2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 5 . 6 8 18 6 0 ‐‐ 7. 6 2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 . 5 1 16 2 0 ‐‐ 6. 9 8 0 . 0 1 ‐‐ <2 < 0 . 0 5 4 . 4 7 42 9 ‐‐ 2. 7 1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 5 3 18 2 0 ‐‐ 6. 3 0 . 0 0 8 ‐‐ <1 < 0 . 0 5 3 7 . 3 14 4 0 ‐‐ 6. 4 8 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 . 3 4 16 2 0 <1 6 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 6 15 5 0 <0 . 2 6 0 . 0 1 9 < 1 < 1 < 0 . 0 5 2 3 . 2 16 1 0 ‐‐ 2. 2 9 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 3 . 4 9 12 8 0 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 12 2 0 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 2 . 0 7 11 1 0 ‐‐ 1. 8 4 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 1 2 11 3 0 ‐‐ 1. 7 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 . 4 4 10 9 0 ‐‐ 1. 5 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 . 3 3 11 2 0 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 7 11 2 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 9 10 8 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 7 3 59 5 ‐‐ ‐ ‐ <0 . 0 1 ‐‐ <5 < 0 . 1 ‐‐ 53 0 ‐‐ ‐ ‐ 0. 0 1 6 ‐‐ 3. 6 < 0 . 1 ‐‐ 61 0 ‐‐ ‐ ‐ 0. 0 2 5 ‐‐ 1. 1 < 0 . 1 ‐‐ 63 0 ‐‐ ‐ ‐ 0. 0 1 6 ‐‐ <1 < 0 . 1 ‐‐ 68 0 ‐‐ ‐ ‐ 0. 0 1 7 ‐‐ <1 < 0 . 1 ‐‐ 59 6 ‐‐ ‐ ‐ 0. 0 1 4 ‐‐ <1 < 0 . 1 ‐‐ 61 0 ‐‐ ‐ ‐ 0. 0 1 3 ‐‐ <1 < 0 . 1 ‐‐ 64 0 ‐‐ ‐ ‐ 0. 0 1 7 ‐‐ <1 < 0 . 1 ‐‐ Pa g e  14  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐11 4 / 1 7 / 1 9 9 7 MW ‐11 1 0 / 1 5 / 1 9 9 7 MW ‐11 4 / 2 1 / 1 9 9 8 MW ‐11 1 0 / 2 7 / 1 9 9 8 MW ‐11 4 / 6 / 1 9 9 9 MW ‐11 1 0 / 2 8 / 1 9 9 9 MW ‐11 4 / 1 1 / 2 0 0 0 MW ‐11 1 0 / 1 1 / 2 0 0 0 MW ‐11 4 / 2 3 / 2 0 0 1 MW ‐11 1 0 / 8 / 2 0 0 1 MW ‐11 4 / 2 2 / 2 0 0 2 MW ‐11 1 0 / 1 7 / 2 0 0 2 MW ‐11 4 / 2 2 / 2 0 0 3 MW ‐11 1 0 / 1 5 / 2 0 0 3 MW ‐11 4 / 1 5 / 2 0 0 4 MW ‐11 1 0 / 6 / 2 0 0 4 MW ‐11 4 / 2 7 / 2 0 0 5 MW ‐11 1 0 / 1 9 / 2 0 0 5 MW ‐11 4 / 1 1 / 2 0 0 6 MW ‐11 1 0 / 2 5 / 2 0 0 6 MW ‐11 4 / 1 1 / 2 0 0 7 MW ‐11 1 0 / 2 2 / 2 0 0 7 MW ‐11 4 / 2 1 / 2 0 0 8 MW ‐11 1 0 / 1 3 / 2 0 0 8 MW ‐11 4 / 1 4 / 2 0 0 9 MW ‐11 1 0 / 2 1 / 2 0 0 9 MW ‐11 4 / 7 / 2 0 1 0 MW ‐11 1 0 / 6 / 2 0 1 0 MW ‐11 1 / 4 / 2 0 1 1 MW ‐11 5 / 5 / 2 0 1 1 MW ‐11 D 4 / 2 1 / 2 0 0 8 MW ‐11 D 1 0 / 1 3 / 2 0 0 8 MW ‐11 D 4 / 1 4 / 2 0 0 9 MW ‐11 D 1 0 / 2 1 / 2 0 0 9 MW ‐11 D 4 / 7 / 2 0 1 0 MW ‐11 D 1 0 / 6 / 2 0 1 0 MW ‐11 D 1 / 4 / 2 0 1 1 MW ‐11 D 5 / 5 / 2 0 1 1 MW ‐12 1 1 / 2 8 / 1 9 9 5 MW ‐12 4 / 1 8 / 1 9 9 6 MW ‐12 1 0 / 1 7 / 1 9 9 6 MW ‐12 4 / 1 7 / 1 9 9 7 MW ‐12 1 0 / 1 5 / 1 9 9 7 MW ‐12 4 / 2 1 / 1 9 9 8 MW ‐12 1 0 / 2 7 / 1 9 9 8 MW ‐12 4 / 6 / 1 9 9 9 MW ‐12 1 0 / 2 8 / 1 9 9 9 MW ‐12 4 / 1 0 / 2 0 0 0 MW ‐12 1 0 / 1 1 / 2 0 0 0 MW ‐12 4 / 2 3 / 2 0 0 1 MW ‐12 1 0 / 8 / 2 0 0 1 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 47 5 ‐‐ ‐ ‐ 0. 0 1 1 ‐‐ <1 < 0 . 1 ‐‐ 49 9 ‐‐ ‐ ‐ 0. 0 1 8 ‐‐ <2 < 0 . 1 ‐‐ 49 6 ‐‐ ‐ ‐ 0. 0 0 6 ‐‐ <2 0 . 1 ‐‐ 59 8 ‐‐ ‐ ‐ 0. 0 1 1 ‐‐ <2 < 0 . 1 ‐‐ 70 6 ‐‐ ‐ ‐ 0. 0 1 7 ‐‐ <2 < 0 . 1 ‐‐ 83 9 ‐‐ ‐ ‐ 0. 0 1 3 ‐‐ <2 < 0 . 1 ‐‐ 81 3 ‐‐ ‐ ‐ 0. 0 1 1 ‐‐ <2 < 0 . 1 ‐‐ 97 0 ‐‐ ‐ ‐ 0. 0 1 9 ‐‐ <2 < 0 . 1 ‐‐ 12 1 5 ‐‐ ‐ ‐ 0. 0 4 1 ‐‐ <2 < 0 . 1 ‐‐ 10 3 3 ‐‐ ‐ ‐ 0. 0 1 6 ‐‐ <2 < 0 . 1 2 4 13 0 0 ‐‐ ‐ ‐ 0. 0 1 2 ‐‐ <2 < 0 . 1 4 2 . 4 12 9 7 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 11 7 1 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 4 9 93 7 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 5 7 . 8 93 7 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 93 4 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 10 1 5 ‐‐ ‐ ‐ <0 . 0 2 ‐‐ <2 < 0 . 1 ‐‐ 88 3 ‐‐ ‐ ‐ <0 . 0 0 5 ‐‐ <2 < 0 . 1 1 3 . 5 10 0 7 ‐‐ <4 0 0 . 0 0 7 ‐‐ <2 < 0 . 1 2 5 92 3 ‐‐ 6. 0 9 0 . 0 0 7 ‐‐ <2 < 0 . 2 1 5 . 9 95 1 ‐‐ 6. 2 2 0 . 0 0 8 ‐‐ <2 < 0 . 1 2 0 . 2 82 7 ‐‐ 5. 6 8 0 . 0 0 8 ‐‐ <2 < 0 . 5 2 . 1 7 93 1 ‐‐ 6. 4 3 0 . 0 0 6 ‐‐ <2 < 0 . 0 5 1 7 . 3 83 3 ‐‐ 6. 1 5 0 . 0 0 6 ‐‐ <2 < 0 . 0 5 1 5 . 5 10 3 0 ‐‐ 7. 1 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 3 8 . 8 96 1 ‐‐ 6. 3 4 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 4 . 4 2 89 8 ‐‐ 6. 1 0 . 0 0 6 ‐‐ <1 < 0 . 0 5 1 0 . 5 68 7 ‐‐ 4. 6 6 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 7 . 7 1 88 2 <1 5 0 . 0 1 1 < 1 < 1 < 0 . 0 5 8 9 . 6 90 1 <0 . 2 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 . 3 12 4 0 ‐‐ 39 . 2 0 . 1 5 7 ‐‐ <2 < 0 . 0 5 0 43 2 ‐‐ 13 . 5 0 . 0 6 ‐‐ <2 < 0 . 0 5 7 9 5 22 0 ‐‐ 9. 1 8 0 . 0 3 3 ‐‐ <2 < 0 . 0 5 3 1 3 29 . 6 ‐‐ 2. 2 5 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 4 1 71 ‐‐ 2. 9 0 . 0 0 7 ‐‐ <1 < 0 . 0 5 4 6 . 1 26 ‐‐ 1. 3 8 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 3 . 6 39 < 1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 9 6 41 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 3 71 8 ‐‐ ‐ ‐ 0. 0 8 ‐‐ 2. 9 < 0 . 1 ‐‐ 50 0 ‐‐ ‐ ‐ 0. 0 6 7 ‐‐ <1 < 0 . 1 ‐‐ 34 0 ‐‐ ‐ ‐ 0. 1 4 ‐‐ <1 < 0 . 1 ‐‐ 33 9 ‐‐ ‐ ‐ 0. 0 5 ‐‐ <1 < 0 . 1 ‐‐ 43 9 ‐‐ ‐ ‐ 0. 0 4 9 ‐‐ <2 < 0 . 1 ‐‐ 15 5 3 ‐‐ ‐ ‐ 0. 3 9 3 ‐‐ <2 0 . 1 3 ‐‐ 34 0 ‐‐ ‐ ‐ 0. 0 6 9 ‐‐ <2 < 0 . 1 ‐‐ 36 1 ‐‐ ‐ ‐ 0. 0 5 7 ‐‐ <2 < 0 . 1 ‐‐ 91 0 ‐‐ ‐ ‐ 0. 1 7 5 ‐‐ <2 < 0 . 1 ‐‐ 27 1 ‐‐ ‐ ‐ 0. 2 8 9 ‐‐ <2 < 0 . 1 ‐‐ 47 8 ‐‐ ‐ ‐ 0. 2 2 ‐‐ <2 < 0 . 1 ‐‐ 57 2 ‐‐ ‐ ‐ 0. 0 3 4 ‐‐ <2 < 0 . 1 ‐‐ 39 8 ‐‐ ‐ ‐ 0. 1 5 3 ‐‐ <2 < 0 . 1 5 2 Pa g e  15  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐12 4 / 2 2 / 2 0 0 2 MW ‐12 1 0 / 1 7 / 2 0 0 2 MW ‐12 4 / 2 2 / 2 0 0 3 MW ‐12 1 0 / 1 5 / 2 0 0 3 MW ‐12 4 / 1 5 / 2 0 0 4 MW ‐12 1 0 / 6 / 2 0 0 4 MW ‐12 4 / 2 7 / 2 0 0 5 MW ‐12 1 0 / 1 9 / 2 0 0 5 MW ‐12 4 / 1 1 / 2 0 0 6 MW ‐12 1 0 / 2 5 / 2 0 0 6 MW ‐12 4 / 1 1 / 2 0 0 7 MW ‐12 1 0 / 2 2 / 2 0 0 7 MW ‐12 4 / 2 1 / 2 0 0 8 MW ‐12 1 0 / 1 3 / 2 0 0 8 MW ‐12 4 / 1 4 / 2 0 0 9 MW ‐12 1 0 / 2 1 / 2 0 0 9 MW ‐12 4 / 7 / 2 0 1 0 MW ‐12 1 0 / 6 / 2 0 1 0 MW ‐12 D 4 / 2 1 / 2 0 0 8 MW ‐12 D 1 0 / 1 3 / 2 0 0 8 MW ‐12 D 4 / 1 4 / 2 0 0 9 MW ‐12 D 1 0 / 2 1 / 2 0 0 9 MW ‐12 D 4 / 7 / 2 0 1 0 MW ‐12 D 1 0 / 6 / 2 0 1 0 MW ‐20 S 1 / 4 / 2 0 1 1 MW ‐20 S 5 / 5 / 2 0 1 1 MW ‐20 S 9 / 7 / 2 0 1 1 MW ‐20 S 1 / 1 2 / 2 0 1 2 MW ‐20 S 5 / 7 / 2 0 1 2 MW ‐20 S 9 / 4 / 2 0 1 2 MW ‐20 S 1 / 7 / 2 0 1 3 MW ‐20 S 5 / 7 / 2 0 1 3 MW ‐20 S 9 / 4 / 2 0 1 3 MW ‐20 S 1 / 1 3 / 2 0 1 4 MW ‐20 S 5 / 5 / 2 0 1 4 MW ‐20 S 9 / 8 / 2 0 1 4 MW ‐20 S 1 / 5 / 2 0 1 5 MW ‐20 S 5 / 4 / 2 0 1 5 MW ‐20 S 9 / 1 / 2 0 1 5 MW ‐20 S 1 / 4 / 2 0 1 6 MW ‐20 S 5 / 2 / 2 0 1 6 MW ‐20 D 1 / 4 / 2 0 1 1 MW ‐20 D 5 / 5 / 2 0 1 1 MW ‐20 D 9 / 7 / 2 0 1 1 MW ‐20 D 1 / 1 2 / 2 0 1 2 MW ‐20 D 5 / 7 / 2 0 1 2 MW ‐20 D 9 / 4 / 2 0 1 2 MW ‐20 D 1 / 7 / 2 0 1 3 MW ‐20 D 5 / 7 / 2 0 1 3 MW ‐20 D 9 / 4 / 2 0 1 3 MW ‐20 D 1 / 1 3 / 2 0 1 4 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 56 0 ‐‐ ‐ ‐ 0. 1 6 ‐‐ <2 < 0 . 1 5 8 3 73 7 ‐‐ ‐ ‐ 0. 2 1 5 ‐‐ <2 < 0 . 1 ‐‐ 38 7 ‐‐ ‐ ‐ 0. 0 7 3 ‐‐ <2 < 0 . 1 2 38 9 ‐‐ ‐ ‐ 0. 0 6 ‐‐ <2 < 0 . 1 1 2 0 77 7 ‐‐ ‐ ‐ 0. 1 6 7 ‐‐ <2 < 0 . 1 ‐‐ 52 3 ‐‐ ‐ ‐ 0. 0 9 9 ‐‐ <2 < 0 . 1 ‐‐ 56 1 ‐‐ ‐ ‐ 0. 1 0 7 ‐‐ <2 < 0 . 1 ‐‐ 48 1 ‐‐ ‐ ‐ 0. 1 0 3 ‐‐ <2 < 0 . 1 4 4 . 3 51 6 ‐‐ <4 0 0 . 1 3 6 ‐‐ <2 < 0 . 1 1 1 2 77 2 ‐‐ 24 . 9 6 0 . 1 6 6 ‐‐ <2 < 0 . 2 4 5 5 44 2 ‐‐ 11 . 9 6 0 . 1 6 1 ‐‐ <2 < 0 . 1 2 4 . 2 45 6 ‐‐ 11 . 3 8 0 . 1 4 5 ‐‐ <2 < 0 . 5 1 7 . 1 53 2 ‐‐ 13 . 3 0 . 1 7 ‐‐ <2 < 0 . 0 5 5 8 . 1 50 1 ‐‐ 12 . 4 0 . 2 0 6 ‐‐ <2 < 0 . 0 5 8 1 40 7 ‐‐ 12 . 5 0 . 1 9 3 ‐‐ <2 < 0 . 0 5 1 2 . 8 41 4 ‐‐ 11 . 6 0 . 2 6 6 ‐‐ <1 < 0 . 0 5 4 2 . 5 38 1 ‐‐ 11 . 1 0 . 2 3 7 ‐‐ <1 < 0 . 0 5 7 . 2 41 0 ‐‐ 10 . 1 0 . 1 5 7 ‐‐ <1 < 0 . 0 5 6 . 9 2 12 3 0 ‐‐ 5. 2 0 . 0 1 2 ‐‐ <2 < 0 . 0 5 4 . 5 8 12 2 0 ‐‐ 4. 6 0 . 0 1 1 ‐‐ <2 < 0 . 0 5 1 . 8 8 12 6 0 ‐‐ 4. 4 8 0 . 0 1 1 ‐‐ <2 < 0 . 0 5 6 . 3 8 13 6 0 ‐‐ 4. 7 0 . 0 0 9 ‐‐ <1 < 0 . 0 5 8 . 8 6 13 1 0 ‐‐ 4. 7 0 . 0 1 2 ‐‐ <1 < 0 . 0 5 7 . 9 7 13 0 0 ‐‐ 4. 3 0 . 0 0 8 ‐‐ <1 < 0 . 0 5 7 . 3 8 88 0 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 1 91 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 2 1 88 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 9 89 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 2 94 5 <0 . 2 < 5 < 0 . 0 0 5 1. 0 4 <1 < 0 . 0 5 6 . 9 1 92 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 3 8 86 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 2 8 93 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 4 1 90 8 <0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 90 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 1 88 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 3 87 4 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 5 . 1 1 82 8 <0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 7 . 0 7 78 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 5 3 84 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 8 2 86 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 2 4 86 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 5 7 51 2 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 1 6 51 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 0 4 48 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 0 7 50 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 9 51 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 1 5 51 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 6 3 51 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 9 2 50 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 7 52 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 0 6 52 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 6 4 Pa g e  16  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐20 D 5 / 5 / 2 0 1 4 MW ‐20 D 9 / 8 / 2 0 1 4 MW ‐20 D 1 / 5 / 2 0 1 5 MW ‐20 D 5 / 4 / 2 0 1 5 MW ‐20 D 9 / 1 / 2 0 1 5 MW ‐20 D 1 / 4 / 2 0 1 6 MW ‐20 D 5 / 2 / 2 0 1 6 MW ‐21 S 1 / 4 / 2 0 1 1 MW ‐21 S 5 / 5 / 2 0 1 1 MW ‐21 S 9 / 7 / 2 0 1 1 MW ‐21 S 1 / 1 2 / 2 0 1 2 MW ‐21 S 5 / 7 / 2 0 1 2 MW ‐21 S 9 / 4 / 2 0 1 2 MW ‐21 S 1 / 7 / 2 0 1 3 MW ‐21 S 5 / 7 / 2 0 1 3 MW ‐21 S 9 / 3 / 2 0 1 3 MW ‐21 S 1 / 1 3 / 2 0 1 4 MW ‐21 S 5 / 5 / 2 0 1 4 MW ‐21 S 9 / 8 / 2 0 1 4 MW ‐21 S 1 / 5 / 2 0 1 5 MW ‐21 S 5 / 4 / 2 0 1 5 MW ‐21 S 9 / 1 / 2 0 1 5 MW ‐21 S 9 / 1 0 / 2 0 1 5 MW ‐21 S 1 / 4 / 2 0 1 6 MW ‐21 S 5 / 2 / 2 0 1 6 MW ‐21 D 1 / 4 / 2 0 1 1 MW ‐21 D 5 / 5 / 2 0 1 1 MW ‐21 D 9 / 7 / 2 0 1 1 MW ‐21 D 1 / 1 2 / 2 0 1 2 MW ‐21 D 5 / 7 / 2 0 1 2 MW ‐21 D 9 / 4 / 2 0 1 2 MW ‐21 D 1 / 7 / 2 0 1 3 MW ‐21 D 5 / 7 / 2 0 1 3 MW ‐21 D 9 / 3 / 2 0 1 3 MW ‐21 D 1 / 1 3 / 2 0 1 4 MW ‐21 D 5 / 5 / 2 0 1 4 MW ‐21 D 9 / 8 / 2 0 1 4 MW ‐21 D 1 / 5 / 2 0 1 5 MW ‐21 D 5 / 4 / 2 0 1 5 MW ‐21 D 9 / 1 / 2 0 1 5 MW ‐21 D 1 / 4 / 2 0 1 6 MW ‐21 D 5 / 2 / 2 0 1 6 MW ‐22 S 1 / 1 2 / 2 0 1 2 MW ‐22 S 5 / 7 / 2 0 1 2 MW ‐22 S 9 / 4 / 2 0 1 2 MW ‐22 S 1 / 7 / 2 0 1 3 MW ‐22 S 5 / 7 / 2 0 1 3 MW ‐22 S 9 / 3 / 2 0 1 3 MW ‐22 S 1 / 1 3 / 2 0 1 4 MW ‐22 S 5 / 5 / 2 0 1 4 MW ‐22 S 9 / 8 / 2 0 1 4 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 51 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 6 53 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 7 2 52 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 9 9 50 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 3 5 53 3 0 . 4 4 8 <5 < 0 . 0 0 5 1. 1 <1 < 0 . 0 5 1 . 4 7 55 3 <0 . 2 < 5 < 0 . 0 0 5 1. 0 6 <1 < 0 . 0 5 2 . 2 52 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 5 30 6 <1 < 5 < 0 . 0 0 5 1. 1 9 <1 < 0 . 0 5 5 . 6 7 34 5 <0 . 2 < 5 < 0 . 0 0 5 1. 0 2 <1 < 0 . 0 5 1 . 4 6 34 2 <0 . 2 < 5 < 0 . 0 0 5 1. 1 9 <1 < 0 . 0 5 3 . 6 2 42 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 4 7 56 7 <0 . 2 < 5 < 0 . 0 0 5 1. 3 3 <1 < 0 . 0 5 1 . 3 2 58 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 7 8 66 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 8 9 67 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 5 74 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 8 80 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 0 6 15 3 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 4 9 10 7 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 65 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 8 2 10 9 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 5 7 75 8 <0 . 2 < 5 < 0 . 0 0 5 1. 2 4 <1 < 0 . 0 5 3 . 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 5.1 10 9 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 0 8 90 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 9 9 93 4 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 5 3 99 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 5 8 90 1 <0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 4 . 1 6 95 9 <0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 6 4 10 5 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 8 3 10 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 4 99 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 9 9 95 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 2 10 7 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 8 2 10 2 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 8 98 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 1 99 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 8 3 92 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 4 10 1 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 7 82 0 <0 . 2 < 5 < 0 . 0 0 5 1. 0 5 <1 < 0 . 0 5 5 . 4 4 91 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 5 4 86 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 6 1 70 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 3 . 3 77 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 3 74 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 7 5 80 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 0 3 59 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 4 83 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 0 3 66 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 1 3 86 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 1 3 87 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 6 2 Pa g e  17  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐2:  Hi s t o r i c a l  Da t a  fr o m  NP D E S  Co m p l i a n c e  an d  Vo l u n t a r y  We l l s NC A C  2L  St a n d a r d : Un i t s : We l l  ID S a m p l e  Da t e MW ‐22 S 1 / 5 / 2 0 1 5 MW ‐22 S 5 / 4 / 2 0 1 5 MW ‐22 S 9 / 1 / 2 0 1 5 MW ‐22 S 1 / 4 / 2 0 1 6 MW ‐22 S 5 / 2 / 2 0 1 6 MW ‐22 D 1 / 1 2 / 2 0 1 2 MW ‐22 D 5 / 7 / 2 0 1 2 MW ‐22 D 9 / 5 / 2 0 1 2 MW ‐22 D 1 / 7 / 2 0 1 3 MW ‐22 D 5 / 8 / 2 0 1 3 MW ‐22 D 9 / 4 / 2 0 1 3 MW ‐22 D 1 / 1 3 / 2 0 1 4 MW ‐22 D 5 / 5 / 2 0 1 4 MW ‐22 D 9 / 8 / 2 0 1 4 MW ‐22 D 1 / 5 / 2 0 1 5 MW ‐22 D 5 / 4 / 2 0 1 5 MW ‐22 D 9 / 1 / 2 0 1 5 MW ‐22 D 1 / 4 / 2 0 1 6 MW ‐22 D 5 / 2 / 2 0 1 6 MW ‐23 D 1 / 4 / 2 0 1 1 MW ‐23 D 5 / 5 / 2 0 1 1 MW ‐23 D 9 / 7 / 2 0 1 1 MW ‐23 D 1 / 1 2 / 2 0 1 2 MW ‐23 D 5 / 7 / 2 0 1 2 MW ‐23 D 9 / 4 / 2 0 1 2 MW ‐23 D 1 / 7 / 2 0 1 3 MW ‐23 D 5 / 8 / 2 0 1 3 MW ‐23 D 9 / 4 / 2 0 1 3 MW ‐23 D 1 / 1 3 / 2 0 1 4 MW ‐23 D 5 / 5 / 2 0 1 4 MW ‐23 D 9 / 8 / 2 0 1 4 MW ‐23 D 1 / 5 / 2 0 1 5 MW ‐23 D 5 / 4 / 2 0 1 5 MW ‐23 D 9 / 1 / 2 0 1 5 MW ‐23 D 1 / 4 / 2 0 1 6 MW ‐23 D 5 / 2 / 2 0 1 6 50 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Ma n g a n e s e T h a l l i u m N i c k e l Z i n c A n t i m o n y * S e l e n i u m M e r c u r y T u r b i d i t y  (Field) 92 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 5 2 55 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 6 96 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 0 3 73 4 <0 . 2 < 5 < 0 . 0 0 5 1. 7 2 <1 < 0 . 0 5 3 . 2 9 75 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 2 9 26 1 <0 . 2 5 0 . 0 1 3 1. 2 3 <1 < 0 . 0 5 8 0 . 3 7 < 0 . 2 < 5 < 0 . 0 0 5 1. 6 <1 < 0 . 0 5 2 . 3 2 14 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 5 < 0 . 0 5 5 3 . 5 <5 < 0 . 2 < 5 < 0 . 0 0 5 1. 0 6 <1 < 0 . 0 5 3 . 1 66 <0 . 2 < 5 < 0 . 0 0 5 1. 0 6 1. 1 6 < 0 . 0 5 9 . 2 15 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 0 9 < 0 . 0 5 3 4 . 2 70 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 1 . 2 54 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 3 37 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 8 9 35 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 7 5 23 < 0 . 2 < 5 < 0 . 0 0 5 1. 6 3 <1 < 0 . 0 5 3 . 1 9 16 < 0 . 2 < 5 < 0 . 0 0 5 1. 2 5 <1 < 0 . 0 5 4 . 3 5 10 < 0 . 2 < 5 < 0 . 0 0 5 1. 9 3 <1 < 0 . 0 5 3 . 7 8 13 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 9 5 40 3 <1 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 3 . 8 21 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 9 . 1 26 < 0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 5 2 45 < 0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 7 5 . 2 19 2 <0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 6 9 . 7 46 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 0 . 3 47 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 4 . 3 61 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 2 1 56 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 4 1 23 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 9 . 7 11 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 9 . 5 45 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 2 4 . 4 27 < 0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 1 9 . 6 39 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 2 . 7 49 3 <0 . 2 < 5 0 . 0 0 8 1. 0 4 <1 < 0 . 0 5 4 9 . 8 71 <0 . 2 < 5 < 0 . 0 0 5 1. 4 <1 < 0 . 0 5 2 7 . 1 18 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 6 . 7 No t e s : 1.2.3.4.5.6.7.8.9. 10 . In t e r i m  Ma x i m u m  Al l o w a b l e  Co n c e n t r a t i o n s  (I M A C s )  ca n  be  fo u n d  in  Ap p e n d i x  #1  of  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  and  Water  Quality  Standards   Ap p l i c a b l e  to  th e  Gr o u n d w a t e r s  of  No r t h  Ca r o l i n a SU  in d i c a t e s  pH  va l u e s  me a s u r e d  in  st a n d a r d  un i t s NT U  in d i c a t e s  tu r b i d i t y  va l u e s  me a s u r e d  in  Ne p h a l o m e t r i c  Tu r b i d i t y  Un i t s Pa r a m e t e r s  ar e  co m p a r e d  to  st a n d a r d s  fo u n d  in  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  an d  Wa t e r  Qu a l i t y  St a n d a r d s  Ap p l i c a b l e  to  the  Groundwaters  of   No r t h  Ca r o l i n a 2L  St a n d a r d s  ar e  es t a b l i s h e d  as  pa r t  of  15 A  NC A C  02 L  .0 2 0 2   °C  in d i c a t e s  te m p e r a t u r e  me a s u r e d  in  de g r e e s  ce l s i u s mV  in d i c a t e s  ox i d a t i o n / r e d u c t i o n  po t e n t i a l  me a s u r e d  in  mi l l i v o l t s µΩ /c m  in d i c a t e s  sp e c i f i c  co n d u c t i v i t y  me a s u r e d  in  mi c r o m h o s  pe r  ce n t i m e t e r mg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi l l i g r a m s  pe r  li t e r µg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi c r o g r a m s  pe r  li t e r Pa g e  18  of  18 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐3:  2L  Gr o u n d w a t e r  St a n d a r d  Ex c e e d a n c e s  fr o m  NP D E S  Sa m p l i n g 2L  St a n d a r d : 1 1 0 7 0 0 3 0 0 5 0 2 5 0 , 0 0 0 5 0 0 , 0 0 0 0 . 2 6 . 5  – 8.5 Un i t s : µ g / L µ g / L µ g / L µ g / L µ g / L µ g / L µ g / L µ g / L S U We l l  ID D a t e  Ra n g e A n t i m o n y A r s e n i c B o r o n I r o n M a n g a n e s e S u l f a t e T D S T h a l l i u m p H MW ‐20 S 1 / 4 / 2 0 1 1  – 5/ 2 / 2 0 1 6 1 . 0 4 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 2 , 3 5 0  – 3, 1 9 0 7 8 9  – 94 5 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 0 . 4 5 5 . 8 2  – 6.24 MW ‐20 D 1 / 4 / 2 0 1 1  – 5/ 2 / 2 0 1 6 1 . 0 6  – 1. 1 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 4 8 9  – 55 3 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Exceedances N o  Exceedances MW ‐21 S 1 / 4 / 2 0 1 1  – 5/ 2 / 2 0 1 6 1 . 0 2  – 1. 3 3 1 6 . 8  – 44 . 7 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 3 0 6  – 1, 5 3 0 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Exceedances 6 . 4 5  – 6.47 MW ‐21 D 1 / 4 / 2 0 1 1  – 5/ 2 / 2 0 1 6 1 . 0 5 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 3 7 6  – 70 1 8 2 0  – 1, 0 7 0 2 7 0 , 0 0 0  – 35 0 , 0 0 0 6 0 0 , 0 0 0  – 77 0 , 0 0 0 N o  Exceedances N o  Exceedances MW ‐22 S 1 / 1 2 / 2 0 1 2  – 5/ 2 / 2 0 1 6 1 . 7 2 N o  Ex c e e d a n c e s 8 2 9  – 90 3 7 , 2 5 0  – 19 , 4 0 0 5 5 9  – 96 5 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Exceedances N o  Exceedances MW ‐22 D 1 / 1 2 / 2 0 1 2  – 5/ 2 / 2 0 1 6 1 . 0 6  – 1. 9 3 N o  Ex c e e d a n c e s 7 1 1  – 80 6 3 4 2  – 1, 0 1 0 5 4  – 26 1 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Exceedances N o  Exceedances MW ‐23 D 1 / 4 / 2 0 1 1  – 5/ 2 / 2 0 1 6 1 . 0 4  – 1. 4 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s 3 2 6  – 1, 7 0 0 6 1  – 56 6 N o  Ex c e e d a n c e s N o  Ex c e e d a n c e s N o  Exceedances 5 . 6 7  – 6.49 No t e s : 1.2.3.4.5. mg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi l l i g r a m s  pe r  li t e r Qu a l i t y  St a n d a r d s  Ap p l i c a b l e  to  th e  Gr o u n d w a t e r s  of  No r t h  Ca r o l i n a µg / L  in d i c a t e s  co n c e n t r a t i o n s  me a s u r e d  in  mi c r o g r a m s  pe r  li t e r SU  in d i c a t e s  pH  va l u e s  me a s u r e d  in  st a n d a r d  un i t s Pa r a m e t e r s  ar e  co m p a r e d  to  st a n d a r d s  fo u n d  in  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  an d  Wa t e r  Qu a l i t y  St a n d a r d s  Ap p l i c a b l e  to  th e   Gr o u n d w a t e r s  of  No r t h  Ca r o l i n a  2L  St a n d a r d s  ar e  es t a b l i s h e d  as  pa r t  of  15 A  NC A C  02 L  .0 2 0 2   In t e r i m  Ma x i m u m  Al l o w a b l e  Co n c e n t r a t i o n s  (I M A C s )  ca n  be  fo u n d  in  Ap p e n d i x  #1  of  15 A  NC A C  Su b c h a p t e r  02 L  Cl a s s i f i c a t i o n s  an d  Wa t e r   Pa g e  1  of  1 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Ge n e r a l 1 Ch e c k  la t i t u d e  an d  lo n g i t u d e  sh o w n  on  re p o r t  co v e r  pa g e s  (t h e   co n v e r s i o n  ap p e a r s  to  be  in c o r r e c t  on  th e  Mo o r e s v i l l e  re g i o n   re p o r t s  an d  ne e d s  to  be  re c o n c i l e d ) . HD R  wi l l  re v i e w  an d  pr o v i d e  co r r e c t e d  la t i t u d e  an d  lo n g i t u d e  co o r d i n a t e s  for  the  sites  in  forthcoming   re p o r t s ,  if  ne e d e d . Ba c k g r o u n d 2 Us e  te r m i n o l o g y  PE P A  “p r o v i s i o n a l  es t i m a t e s  fo r  pu r p o s e s  of   as s e s s m e n t ”  pr o v i d e  fo r  ba c k g r o u n d  co n c e n t r a t i o n s  of  CO I s . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  is  th e  terminology  used  for  statistically   de t e r m i n e d  ba c k g r o u n d  co n c e n t r a t i o n s  in  th e  CA P  re p o r t i n g .  PP B C s  are  discussed  in  CAP  Part  1, Section  2.   Th e  ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section   4. CO I 3 Us e  re s u l t s  fr o m  po r e w a t e r ,  gr o u n d w a t e r  an d  ot h e r  me d i a  to   de v e l o p  CO I  li s t . CO I s  we r e  se l e c t e d  ba s e d  on  ex c e e d a n c e s  fo u n d  in  po r e w a t e r ,  gr o u n d w a t e r ,  soil, and  surface  water   sa m p l e  re s u l t s . CO I 4 Cr ( V I )  – in c l u d e  as  CO I  at  ea c h  si t e  du e  to  in t e r e s t  an d  du e  to   re c e p t o r  we l l  re s u l t s .  Us e  NC D H H S  sc r e e n i n g  va l u e . He x a v a l e n t  Ch r o m i u m  is  in c l u d e d  as  a  CO I  in  CA P  Pa r t  1  da t a  ta b l e s  and  is  considered  with  respect  to  the   NC  DH H S  sc r e e n i n g  le v e l  an d  ha s  be e n  ca r r i e d  fo r w a r d  wi t h  su b s e q u e n t  evaluations. Samples  were   an a l y z e d  fo r  He x a v a l e n t  Ch r o m i u m  in  se l e c t  gr o u n d w a t e r  mo n i t o r i n g  wells, and  further  Cr(VI) evaluation   ma y  ta k e  pl a c e  ba s e d  on  th e  re s u l t s  of  ea c h  si t e  re s p e c t i v e l y .  CA P  Part  1, Section  1.9.2  states  that  Cr(VI) is   in c l u d e d  in  th e  CO I  li s t . CO I 5 Ne e d  to  ev a l u a t e  va n a d i u m  an d  st r o n t i u m  at  ev e r y  si t e  to  sh o w   di f f e r e n c e s  be t w e e n  ba c k g r o u n d  co n c e n t r a t i o n s  an d  po t e n t i a l   so u r c e ‐re l a t e d  co n c e n t r a t i o n s . Va n a d i u m  ha s  be e n  co n s i d e r e d  ac r o s s  th e  si t e s  in  CS A  re p o r t i n g .  St r o n t i u m  was  not  included  in  the  CSA   ta b l e s ,  ho w e v e r  st r o n t i u m  da t a  wa s  co l l e c t e d  wi t h  ot h e r  co n s t i t u e n t s ,  including  vanadium, and  is   pr e s e n t e d  in  th e  CS A  Su p p l e m e n t  2. CO I - R e c e p t o r s 6 A d d  ev a l u a t i o n  of  re c e p t o r  we l l s  in  CA P . Wa t e r  su p p l y  we l l s  ar e  sh o w n  on  Fi g u r e  1 ‐3  in  th e  CS A  Su p p l e m e n t  2  along  with  analytical  results   fa c i l i t a t i n g  th e  in t e r p r e t a t i o n  of  re c e p t o r  wa t e r  qu a l i t y  re l a t i v e  to  si t e  water  quality. CO I - R e c e p t o r s 7 Pr i v a t e  an d  pu b l i c  wa t e r  su p p l y  we l l s  sa m p l e d  sh o u l d  be  sh o w n   on  a  ma p  wi t h  zo o m  in  bo x e s  sh o w i n g  co n c e n t r a t i o n  re s u l t s  ev e n   if  be l o w  2L . Wa t e r  su p p l y  we l l s  ar e  sh o w n  on  Fi g u r e  1 ‐3  in  th e  CS A  Su p p l e m e n t  2  along  with  analytical  results   fa c i l i t a t i n g  th e  in t e r p r e t a t i o n  of  re c e p t o r  wa t e r  qu a l i t y  re l a t i v e  to  si t e  water  quality. CO I - R e c e p t o r s 8 A d d  ta b l e  wi t h  al l  re c e p t o r  we l l  re s u l t s . Wa t e r  su p p l y  we l l s  ar e  sh o w n  on  Fi g u r e  1 ‐3  in  th e  CS A  Su p p l e m e n t  2  along  with  analytical  results   fa c i l i t a t i n g  th e  in t e r p r e t a t i o n  of  re c e p t o r  wa t e r  qu a l i t y  re l a t i v e  to  si t e  water  quality. CO I - R e c e p t o r s 9 Al l  pr i v a t e  re c e p t o r  we l l s  sh o w n  on  fi g u r e s  (u s e  or  ad d  DE Q   de s i g n a t i o n s ) . Sh o w  re s u l t s  fo r  de t e c t i o n  co n s t i t u e n t s . Ad d  st r o n t i u m . Al l  wa t e r  su p p l y  we l l s  ar e  sh o w n  on  Fi g u r e  1 ‐3.    Th o s e  wa t e r  su p p l y  wells  that  can  be  shown  in  the   vi e w p o r t s  of  th e  th e  po t e n t i o m e t r i c  su r f a c e  an d  is o c o n c e n t r a t i o n  fi g u r e s  in  the  CSA  Supplement  2  are  also   in c l u d e d .    A  ta b l e  of  an a l y t i c a l  re s u l t s ,  in c l u d i n g  st r o n t i u m ,  is  in c l u d e d  on  Figure  1 ‐3.   CO I 10 Ad d  to t a l  ur a n i u m  an d  Ra 2 2 6 + 2 2 8 .  DE Q  co n s i d e r s  ra d i o n u c l i d e s  to   be  a  dr i v e r  of  al p h a  ac t i v i t y  in  th e  as h  ba s i n s .  Sa m p l e  th e  fo l l o w i n g   lo c a t i o n s  bo t h  be l o w  as h  po n d s  an d  ot h e r  do w n g r a d i e n t  ar e a s   wh e r e  ot h e r  co n s t i t u e n t  co n c e n t r a t i o n s  ar e  hi g h :   Do w n g r a d i e n t  mo n i t o r i n g  we l l  lo c a t i o n s ,  at  lo c a t i o n s  wi t h   ex c e e d a n c e s ,  an d  at  ba c k g r o u n d  lo c a t i o n s .   Ur a n i u m  an d  Ra 2 2 6 + 2 2 8  ma y  be  in c l u d e d  in  NP D E S  mo n i t o r i n g . Li s t  Fe d e r a l  MC L  as  st a n d a r d  fo r  Ra  22 6 ‐22 8  an d  ur a n i u m . Se l e c t  we l l s  lo c a t e d  do w n s t r e a m  an d  al o n g  tr a n s e c t s  we r e  sa m p l e d  for  these  constituents  in  the  CSA  and   Po s t ‐CS A  sa m p l i n g  pe r i o d s .    At  th e  ti m e  of  th e  CS A  Su p p l e m e n t  2,  th e  analytical  results  from  Round  5  had   be e n  re c e i v e d  an d  up o n  re v i e w ,  we r e  re c o m m e n d e d  fo r  re ‐is s u e  pr i o r  to  completing  review  and  inclusion   in  th e  CS A  Su p p l e m e n t  2.    Up o n  re c e i p t ,  th e s e  da t a  wi l l  be  pr o v i d e d  in  a  subsequent  submittal.   So u r c e C h a r a c t e r i z a t i o n 11 Ad d r e s s  so i l s  as  be i n g  pr i m a r y  an d  se c o n d a r y  so u r c e s  – ad d r e s s  in   CA P  an d  CS A  su p p l e m e n t . A  se p a r a t e  ri s k  as s e s s m e n t  ha s  be e n  pr o v i d e d  su b s e q u e n t  to  th e  CS A  report  by  Duke  Energy  via  Haley  &  Al d r i t c h . So u r c e C h a r a c t e r i z a t i o n 12 De s c r i b e  ho w  ge o c h e m i c a l  co n d i t i o n s  ma y  af f e c t  re l e a s e  of   na t u r a l l y  oc c u r r i n g  co n s t i t u e n t s  su c h  as  ir o n  an d  ma n g a n e s e . Di s c u s s i o n  of  ge o c h e m i c a l  co n d i t i o n s  we r e  pr o v i d e d  in  CA P  Pa r t  2  with  geochemical  modeling  results.   So u r c e C h a r a c t e r i z a t i o n 13 So i l  to  be  id e n t i f i e d  as  se c o n d a r y  so u r c e  – du e  to  le a c h i n g  of  as h   on t o  un s a t u r a t e d  so i l . A  se p a r a t e  ri s k  as s e s s m e n t  ha s  be e n  pr o v i d e d  su b s e q u e n t  to  th e  CS A  report  by  Duke  Energy  via  Haley  &  Al d r i t c h . Pa g e  1  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Ba c k g r o u n d 14 Ba c k g r o u n d  so i l  co n c e n t r a t i o n s  ne e d  to  be  ev a l u a t e d .  Na t i v e  so i l s   ma y  be  a  so u r c e  ba s e d  on  ge o c h e m i c a l  co n d i t i o n s  in / b e n e a t h  th e   as h  po n d s .  Ne e d  to  ad d r e s s  ba c k g r o u n d  so i l  co n d i t i o n s  an d   re l a t i o n s h i p  to  ob s e r v e d  2L  ex c e e d a n c e s . Pr o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s  or  PP B C s  ar e  di s c u s s e d  in  CAP  Part  1, Section  2.  The   ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section  4. Ba c k g r o u n d 15 Pr o v i d e  “p r o v i s i o n a l  es t i m a t e s ”  of  ba c k g r o u n d  if  th e r e  ar e   in s u f f i c i e n t  nu m b e r s  of  sa m p l e s  fo r  st a t i s t i c s . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  is  th e  terminology  used  for  statistically   de t e r m i n e d  ba c k g r o u n d  co n c e n t r a t i o n s  in  th e  CA P  re p o r t i n g .  PP B C s  are  discussed  in  CAP  Part  1, Section  2.   Th e  ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section   4. Ba c k g r o u n d 16 A  si m i l a r  an a l y s i s / e v a l u a t i o n  of  do w n g r a d i e n t  so i l s  an d  th e i r   re l a t i o n s h i p  to  2L  ex c e e d a n c e s  al s o  ne e d s  to  be  in c l u d e d  in  th e   CA P . Pr o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s  or  PP B C s  ar e  di s c u s s e d  in  CAP  Part  1, Section  2.  The   ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section  4. Ba c k g r o u n d 17 Po t e n t i a l  re l e a s e  me c h a n i s m s  ne e d  to  be  co n s i d e r e d  in  th e  CA P   (i . e . ,  mi g r a t i o n  of  le a c h a t e  be n e a t h  th e  as h  ba s i n ,  et c . ) . Di s c u s s i o n  of  po t e n t i a l  mi g r a t i o n  pa t h w a y s  is  di s c u s s e d  in  CA P  Pa r t  2, Section  3.3 Ba c k g r o u n d 18 Ba c k g r o u n d  de t e r m i n a t i o n s .  Ba c k g r o u n d  co n c e n t r a t i o n s  ne e d  to   be  ev a l u a t e d  to  de t e r m i n e  si t e ‐sp e c i f i c  co n s t i t u e n t  co n c e n t r a t i o n   le v e l s  an d  th i s  ev a l u a t i o n  ne e d s  to  be  in c l u d e d  in  CA P .  Us e  al l   av a i l a b l e  hi s t o r i c  da t a  fr o m  co m p l i a n c e  we l l s  an d  ne w l y  in s t a l l e d   we l l s . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  is  th e  terminology  used  for  statistically   de t e r m i n e d  ba c k g r o u n d  co n c e n t r a t i o n s  in  th e  CA P  re p o r t i n g .  PP B C s  are  discussed  in  CAP  Part  1, Section  2.   Th e  ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section   4. Ba c k g r o u n d 19 Ba c k g r o u n d  gr o u n d w a t e r  mo n i t o r i n g  we l l s  ne e d  to  be  sa m p l e d  2   mo r e  ti m e s  be f o r e  th e  en d  of  20 1 5  (s a m p l e s  ne e d  to  be   sp e c i a t e d ) . Th e s e  sa m p l e s  ha v e  be e n  co l l e c t e d .  Da t a  fr o m  Ro u n d s  2  th r o u g h  4  was  included  in  the  CAP  Part  2. Ba c k g r o u n d 20 Se p a r a t e  ba c k g r o u n d  co n c e n t r a t i o n s  ne e d  to  be  de t e r m i n e d  fo r   sh a l l o w ,  in t e r m e d i a t e  an d  de e p  fl o w  la y e r s  (a s  we l l  as  an y  ot h e r   si t e ‐sp e c i f i c  co n d i t i o n s  li k e  we t l a n d s ) . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  ar e  di s c u s s e d  in  CAP  Part  1, Section  2.  The   ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section  4.   Th i s  ap p r o a c h  in c l u d e s  co n s i d e r a t i o n  to  th e s e  ca l c u a t i o n s  by  fl o w  la y e r . Ba c k g r o u n d 21 Us e  al l  av a i l a b l e  si t e  da t a  (i n c l u d e  ex a m p l e  ba c k g r o u n d  we l l s  PH R ,   FG D ,  Cr a i g  Rd . ) . Ba c k g r o u n d  da t a  fr o m  hi s t o r i c a l  so u r c e s  wa s  ut i l i z e d  wh e r e  ap p l i c a b l e  in  the  CAP  Part  2. We l l a n d C o n s t i t u e n t s 22 We l l s  mu s t  me e t  2C  ru l e  re q u i r e m e n t s ;  tu r b i d i t y  ca n n o t  im p a c t   re s u l t s . Re s u l t s  fr o m  Ro u n d  5  sa m p l i n g  ar e  pr e s e n t e d  in  th e  CS A  Su p p l e m e n t  2  and  wells  with  turbidity  results   ab o v e  10  NT U  ar e  id e n t i f i e d  so  th a t  re s u l t s  ma y  be  qu a l i f i e d  up o n  re v i e w .    We l l a n d C o n s t i t u e n t s 23 El e v a t e d  pH  an d  tu r b i d i t y  mu s t  be  ad d r e s s e d  or  we l l  mu s t  be   re d e v e l o p e d  or  re p l a c e d . Du k e  En e r g y  ha s  in s t a l l e d  ad d i t i o n a l  mo n i t o r i n g  we l l s  to  ad d r e s s  co n c e r n s  with  elevated  pH  and  turbidity   se e n  wh e n  sa m p l i n g  as  we l l  as  to  re f i n e  un d e r s t a n d i n g  of  ex c e e d a n c e s .   Results  from  the  Round  5,  in c l u d i n g  ad d i t i o n a l  as s e s s m e n t  we l l s ,  ha s  be e n  in c l u d e d  in  CS A  Su p p l e m e n t  2.   We l l a n d C o n s t i t u e n t s 24 In c l u d e  di s c u s s i o n  of  pH  an d  tu r b i d i t y  in  ba c k g r o u n d  we l l   di s c u s s i o n . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  ar e  di s c u s s e d  in  CAP  Part  1, Section  2.  The   ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section  4.   Th i s  ap p r o a c h  in c l u d e s  co n s i d e r a t i o n  to  th e s e  ca l c u a t i o n s  by  ut i l i z i n g  viable  samples  below  10  NTU. We l l a n d C o n s t i t u e n t s 25 R e s u l t s  ab o v e  10  NT U  to  be  re m o v e d  fr o m  da t a  se t  fo r  st a t i s t i c s . "P r o p o s e d  Pr o v i s i o n a l  Ba c k g r o u n d  Co n c e n t r a t i o n s "  or  PP B C s  ar e  di s c u s s e d  in  CAP  Part  1, Section  2.  The   ap p r o a c h  to  re f i n e  PP B C s  wh e n  ad d i t i o n a l  da t a  is  av a i l a b l e  is  pr e s e n t e d  in  CSA  Supplement  2, Section  4.   Th i s  ap p r o a c h  in c l u d e s  co n s i d e r a t i o n  to  th e s e  ca l c u a t i o n s  by  ut i l i z i n g  viable  samples  below  10  NTU. So i l C o n t a m i n a t i o n 26 So i l  co n t a m i n a t i o n  pl u m e s  do  no t  ap p e a r  to  be  we l l  de l i n e a t e d .   Sh o w  ex t e n t  of  pl a n  fi g u r e s  an d  on  cr o s s  se c t i o n s . Ve r t i c a l  de l i n e a t i o n  of  CO I s  ar e  no t e d  on  cr o s s  se c t i o n s  in c l u d e d  in  the  CSA  Supplement  2. Pa g e  2  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n So i l C o n t a m i n a t i o n 27 Co m p a r e  so i l  re s u l t s  to  Pr e l i m i n a r y  So i l  Re m e d i a t i o n  Go a l s  (P S R G )   fo r  pr o t e c t i o n  of  gr o u n d w a t e r  st a n d a r d s  (P O G ) . Wh e r e  ad d i t i o n a l  so i l  sa m p l e s  we r e  co l l e c t e d  as  pa r t  of  th e  in s t a l l a t i o n  of  additional  assessment  wells,  th o s e  re s u l t s  wi l l  be  pr e s e n t e d  to  PS R G  PO G  st a n d a r d s .   So i l C o n t a m i n a t i o n 28 MR L  vs .  PO G  ar e  is s u e  fo r  se l e c t e d  co n s t i t u e n t s ;  th i s  ma y  re q u i r e   re s a m p l i n g . Du k e  En e r g y  wo r k e d  wi t h  th e  la b s  to  re d u c e  th e  re p o r t i n g  li m i t s .  Ho w e v e r ,  lowering  the  MRL  to  below  the   PO G  wa s  no t  ab l e  to  be  ac h i e v e d  to  da t e  fo r  ce r t a i n  co n s t i t u e n t s .   So i l C o n t a m i n a t i o n 29 So i l s  PS R G s ,  de t e c t i o n  li m i t s  ab o v e  st a n d a r d s  is  pr o b l e m a t i c .   Re v i e w  IH S B  Gu i d e l i n e s  fo r  As s e s s m e n t  an d  Cl e a n u p  se c t i o n   4. 1 . 1 . 2  to  de v e l o p  si t e  sp e c i f i c  ba c k g r o u n d  va l u e s  fo r  so i l ,  if   ap p l i c a b l e Du k e  En e r g y  wo r k e d  wi t h  th e  la b s  to  re d u c e  th e  re p o r t i n g  li m i t s .  Ho w e v e r ,  lowering  the  MRL  to  below  the   PO G  wa s  no t  ab l e  to  be  ac h i e v e d  to  da t e  fo r  ce r t a i n  co n s t i t u e n t s .   So i l C o n t a m i n a t i o n 30 C r ( V I )  is  dr i v i n g  ri s k ,  us e  Cr ( V I )  in  re v i e w . I n  th e  CA P  re p o r t i n g  as  we l l  as  CS A  Su p p l e m e n t  2,  Cr ( V I )  is  ad d e d  to  the  list  of  COIs  in  groundwater. So i l C o n t a m i n a t i o n 31 N e e d  to  co m p a r e  so i l s  re s u l t s  to  Cr ( V I )  (n o t  Cr ( I I I ) ) . So i l s  wi l l  be  co m p a r e d  to  th e  PS R G  PO G  Cr ( V I )  st a n d a r d  of  3. 8  mg / k g  in  subsequent  reporting, where   ad d i t i o n a l  so i l  sa m p l e s  we r e  co l l e c t e d . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 32 Hy d r o l o g y / g e o l o g i c  co n t r o l s  an d  th e  ef f e c t s  on  co n t a m i n a n t   di s t r i b u t i o n  an d  tr a n s p o r t  ar e  no t  di s c u s s e d  in  CS A .  Di s c u s s   re l a t i v e  to  DO ,  pH ,  Eh ,  et c .  It  is  im p e r a t i v e  th a t  th i s  di s c u s s i o n  be   in c l u d e d  as  pa r t  of  CA P  #1  as  th i s  is  re q u i r e m e n t  of  CA M A .  Th e   di s c u s s i o n  ca n  be  re f i n e d  in  CA P  #2 . On  Ju n e  25 ,  20 1 5 ,  NC D E Q  re q u e s t e d  th a t  th e s e  ge o c h e m i c a l  is s u e s  be  addressed  in  a  Site  Conceptual   Mo d e l .  Th i s  to p i c  wa s  in t r o d u c e d  in  th e  CS A  an d  an n o u n c e d  th a t  th e  SCM  would  be  refined  as  an  iterative   pr o c e s s  in  th e  fo r t h c o m i n g  CA P .  CA P  Pa r t  1  Se c t i o n  3. 2 . 2  in c l u d e d  discussion  of  general  geochemical   ch a r a c t e r i s t i c s  su c h  as  ca t i o n s / a n i o n s ,  re d o x  po t e n t i a l ,  so l u t e  sp e c i a t i o n ,  and  Kd  testing. These  items  were   fu r t h e r  ad d r e s s e d  in  CA P  Pa r t  2  Se c t i o n  2. 4 . 4 ,  an d  Se c t i o n  3. 3 . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 33 Di s c u s s  ho w  ge o c h e m i c a l  co n d i t i o n s  af f e c t  co n t a m i n a n t   di s t r i b u t i o n ?  (G e o c h e m i c a l  “h a l o ”  re l e a s i n g  Mn  an d  Fe ) . On  Ju n e  25 ,  20 1 5 ,  NC D E Q  re q u e s t e d  th a t  th e s e  ge o c h e m i c a l  is s u e s  be  addressed  in  a  Site  Conceptual   Mo d e l .  Th i s  to p i c  wa s  in t r o d u c e d  in  th e  CS A  an d  an n o u n c e d  th a t  th e  SCM  would  be  refined  as  an  iterative   pr o c e s s  in  th e  fo r t h c o m i n g  CA P .  CA P  Pa r t  1  Se c t i o n  3. 2 . 2  in c l u d e d  discussion  of  general  geochemical   ch a r a c t e r i s t i c s  su c h  as  ca t i o n s / a n i o n s ,  re d o x  po t e n t i a l ,  so l u t e  sp e c i a t i o n ,  and  Kd  testing. These  items  are   fu r t h e r  ad d r e s s e d  in  CA P  Pa r t  2  Se c t i o n  2. 4 . 4 :  Si t e  Ge o c h e m i s t r y  an d  Influence  on  COIs, which  treats  spatial   di s t r i b u t i o n  of  gr o u n d w a t e r  ge o c h e m i s t r y  re l a t i v e  to  th e  so u r c e  ar e a . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 34 S p e c i f y  wh e r e  di f f e r e n c e s  ex i s t  fr o m  Le G r a n d  co n c e p t u a l  mo d e l . Th e  CA P  Pa r t  2  re p o r t  st a t e s  wh e r e  th e  mo d e l  is  co n s i s t e n t  wi t h  Le G r a n d ,  specifically  in  the  Groundwater   Mi g r a t i o n  su b s e c t i o n ,  an d  th e  CO I  Oc c u r r e n c e  an d  Di s t r i b u t i o n  Se c t i o n . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 35 Gr o u n d w a t e r  ve l o c i t i e s  in  be d r o c k  an d  tr a n s i t i o n  zo n e  ap p e a r  to   be  to o  hi g h .  Ve r i f y  or  co r r e c t  th e s e  va l u e s .  De s c r i b e  tr a n s m i s s i v i t y   co n c e p t  ve r s u s  jo i n t  fl o w  ve l o c i t y . Th e s e  va l u e s  we r e  co r r e c t e d  an d  up d a t e d  in  CA P  Pa r t  2  Ap p e n d i x  A.  Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 36 E x p l a i n  wh y  on e  co n t a m i n a n t  ma y  be  el e v a t e d  in  a  pa r t i c u l a r  ar e a . CA P  Pa r t  2  Se c t i o n  3. 7  in c l u d e d  an  ex p a n d e d  di s c u s s i o n  of  si t e  ge o c h e m i c a l  controls  on  contaminant   mo b i l i t y  an d  mi g r a t i o n  to  ad d r e s s  th i s  co n c e r n . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 37 D e s c r i b e  ho w  co n s t i t u e n t s  ar e  mo b i l i z e d  or  at t e n u a t e d . CA P  Pa r t  2  Se c t i o n  3. 7  in c l u d e d  an  ex p a n d e d  di s c u s s i o n  of  si t e  ge o c h e m i c a l  controls  on  contaminant   mo b i l i t y  an d  mi g r a t i o n  to  ad d r e s s  th i s  co n c e r n . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 38 De s c r i b e  ge o c h e m i c a l  co n d i t i o n s  an d  me c h a n i s m s ,  an d  ch a r g e s ,   al o n g  fl o w  pa t h s .  DE Q  co n s i d e r s  fl o w  pa t h s  to  be  fr o m  th e   ma x i m u m  co n c e n t r a t i o n  fo r  a  CO I  to  a  re c e p t o r  or  to  th e   co m p l i a n c e  bo u n d a r y . Th e  gr o u n d w a t e r  mo d e l  co n s i d e r s  li n e a r  ad s o r p t i o n  (F r e u n d l i c h  ad s o r p t i o n  for  select  COIs  in  the  Buck   mo d e l )  fo r  CO I s  (e x c e p t  su l f a t e  an d  ch l o r i d e ) .    Th e  ad s o r p t i o n  te r m  (Kd) is  uniform  within  the  model   do m a i n ,  in c l u d i n g  fr o m  th e  ac t i v e  an d  in a c t i v e  as h  ba s i n s / s t o r a g e  (s o u r c e s )  to  downgradient  monitor  wells   an d  th e  co m p l i a n c e  bo u n d a r y .  CA P  Pa r t  2,  Ap p e n d i x  B,  gr o u n d w a t e r  model.  Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 39 De s c r i b e  na t u r e  of  so r p t i v e  ma t e r i a l s  pr e s e n t  in  th r e e ‐pa r t  sy s t e m   an d  al o n g  fl o w  pa t h s  to  re c e p t o r s . So r p t i o n  co n s t a n t s  an d  ca l c u l a t i o n s  ar e  de s c r i b e d  in  CA P  Pa r t  2  Se c t i o n  4.3, in  the  methodology  subsection Pa g e  3  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 40 De s c r i b e  ho w  bo r o n ,  su l f a t e ,  TD S  “i s l a n d s ”  ar e  lo c a t e d  al o n g  fl o w   pa t h s  an d  ho w  th e s e  ar e  co n s i d e r e d / i n c o r p o r a t e d  in t o  HG C M  an d   nu m e r i c a l  mo d e l s . Th e  gr o u n d w a t e r  mo d e l  is  se t u p  pe r  so u r c e  ar e a  an d  th e n  ca l i b r a t e d  to  concentrations  observed  in   do w n g r a d i e n t  mo n i t o r  we l l s .  Ca l i b r a t i o n  to  ob s e r v e d  co n c e n t r a t i o n s  is  achieved  by  adjusting  source   co n c e n t r a t i o n s  wi t h i n  ac t i v e / i n a c t i v e  as h  ba s i n s  an d  as h  st o r a g e  ar e a s  within  the  measured  values,  ad j u s t i n g  hy d r a u l i c  co n d u c t i v i t y  ba s e d  on  re p o r t e d  va l u e s ,  ad j u s t i n g  kd  based  on  lab  data, and  other   me a s u r e d  hy d r o g e o l o g i c  pr o p e r t i e s .  Th e  ca l i b r a t i o n  at t e m p t s  to  ma t c h  concentrations  observed  in   do w n g r a d i e n t  mo n i t o r  we l l s  by  ma t c h i n g  th e  fl o w  pa t h s  an d  th u s  th e  observed  COI  “islands”.  The  model   di d  no t  in c o r p o r a t e  TD S  (b o r o n  an d  su l f a t e  ar e  bo t h  in c l u d e d  in  th e  groundwater  model. CAP  Part  2,  Ap p e n d i x  B,  gr o u n d w a t e r  mo d e l .   Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 41 Su b s u r f a c e  dr a i n a g e  sy s t e m s  at  di k e / d a m s  sh o u l d  be  sh o w n  an d   po t e n t i a l  im p a c t s  to  fa t e  & tr a n s p o r t  mo d e l i n g  sh o u l d  be   de s c r i b e d  in  in  hy d r o g e o l o g i c  an d  ge o c h e m i c a l  co n c e p t u a l   mo d e l s . Su b s u r f a c e  dr a i n a g e  sy s t e m s  ar e  sh o w n  an d  di s c u s s e d  in  Se c t i o n  4  of  the  CSA  reports. They  are  shown  in   th e  CS A  Se c t i o n  4  Fi g u r e s . Hy d r o l o g y / G e o l o g y a n d Ch e m i c a l C o n t r o l s 42 S h o w  me a s u r e d  wa t e r  le v e l s  on  po n d s ,  st r e a m s ,  ri v e r s . Po n d ,  ri v e r ,  an d  la k e  el e v a t i o n s  wi l l  be  sh o w n  on  fi g u r e s  wh e r e  ap p l i c a b l e .   For  example, in  the  CSA   Su p p l e m e n t  2,  th e s e  el e v a t i o n s  ar e  in c l u d e d  on  th e  sh a l l o w  po t e n t i o m e t r i c  figures, but  not  on  all  flow   la y e r s . Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 43 R e f i n e d  co n c e p t u a l  mo d e l  ne e d s  to  be  pr e s e n t e d  in  CA P  I. S i t e  Co n c e p t u a l  Mo d e l s  we r e  up d a t e d  an d  in c l u d e d  in  th e  CA P  Pa r t  2. Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 44 Hy d r o g e o  an d  ge o c h e m i c a l  co n c e p t u a l  mo d e l s  ne e d  to  be   di s c u s s e d  in  te r m s  of  sp e c i f i c  so u r c e  ar e a s .  In c l u d e  up g r a d i e n t ,   so u r c e ,  an d  do w n g r a d i e n t .  De v e l o p  na r r a t i v e  fo r  ea c h  so u r c e  ar e a   an d  do w n g r a d i e n t  fo o t p r i n t  (f l o w  sy s t e m  re c h a r g e / d i s c h a r g e ,   ho r i z o n t a l  fl o w  di r e c t i o n ,  fl o w  pa t h s  em a n a t i n g  fr o m  al l  si d e s   (i n c l u d e  ma p ) . CA P  Pa r t  2  Se c t i o n  2. 4 . 4  in c l u d e d  di s c u s s i o n  of  ge o c h e m i c a l  pa r a m e t e r s  with  consideration  to  whether   th e r e  ar e  tr e n d s  up g r a d i e n t  or  do w n g r a d i e n t  fr o m  th e  so u r c e .  Th e  refined  SCM  also  included  flow  paths   de t e r m i n e d  ac r o s s  th e  en t i r e  si t e . Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 45 Ex p l a i n  im p l i c a t i o n s  of  ve r t i c a l  gr a d i e n t s  in  re c h a r g e  an d  di s c h a r g e   ar e a  in  ea c h  so u r c e  ar e a  an d  it s  do w n g r a d i e n t  fo o t p r i n t . Ve r t i c a l  hy d r a u l i c  gr a d i e n t s  we r e  ca l c u l a t e d  fo r  Ro u n d  2  da t a ,  an d  were  included  in  CAP  Part  1. The   pa t t e r n s  in  ve r t i c a l  gr a d i e n t s  ar e  di s c u s s e d  in  CA P  Pa r t  2  Se c t i o n  2. 3 . 1 . 1 . Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 46 In c l u d e  ef f e c t s  of  re c e p t o r  we l l s  in  di s c u s s i o n .  Al s o  in c l u d e   po s s i b l e  im p a c t s  fr o m  ba s i n  to  re c e p t o r s  in  co n c e p t u a l  mo d e l   di s c u s s i o n s . In  CA P  Pa r t  2  Ap p e n d i x  C,  th e  is s u e  of  pu m p i n g  we l l s  is  di s c u s s e d .  Where  appropriate, pumping  wells  are   in c l u d e d  as  an  in f l u e n c e  in  th e  gr o u n d w a t e r  mo d e l .  Fo r  ex a m p l e ,  fo r  the  DEC  Cliffside  site, the  pumping   we l l s  we r e n ' t  mo d e l e d  be c a u s e  of  th e  in f l u e n c e  of  th e  Br o a d  Ri v e r .  Other  DEC  sites, such  as  Allen, Belews   Cr e e k ,  an d  Bu c k ,  th e  pu m p i n g  we l l s  we r e  in c l u d e d  in  th e  mo d e l . Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 47 Si t e  he t e r o g e n e i t i e s  ar e  no t  ad e q u a t e l y  ex p l a i n e d .  Ex p l a i n  ex i s t i n g   he t e r o g e n e i t i e s  an d  im p l i c a t i o n s  fo r  fa t e  an d  tr a n s p o r t  mo d e l i n g .   De s c r i b e  un c e r t a i n t i e s  an d  ex p l a i n  im p a c t  of  un c e r t a i n t i e s . Th e  gr o u n d w a t e r  mo d e l s  ar e  be i n g  up d a t e d  an d  re c a l i b r a t e d  in c l u d i n g  new  data  as  it  has  becoms  available   as  pa r t  of  th e  ex p a n d e d  gr o u n d w a t e r  mo d e l  do m a i n  ac t i v i t i e s .  Un c e r t a i n i t i e s  and  limitations  will  be   pr e s e n t e d  as  pa r t  of  th e  re s u l t s ,  wh i c h  ar e  ex p e c t e d  to  be  co m p l e t e d  during  Fall  2016. Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 48 E x p l a i n  im p a c t  of  un c e r t a i n t i e s  in  co n c e p t u a l  mo d e l . Th e  gr o u n d w a t e r  mo d e l s  ar e  be i n g  up d a t e d  an d  re c a l i b r a t e d  in c l u d i n g  new  data  as  it  has  becoms  available   as  pa r t  of  th e  ex p a n d e d  gr o u n d w a t e r  mo d e l  do m a i n  ac t i v i t i e s .  Un c e r t a i n i t i e s  and  limitations  will  be   pr e s e n t e d  as  pa r t  of  th e  re s u l t s ,  wh i c h  ar e  ex p e c t e d  to  be  co m p l e t e d  during  Fall  2016. Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 49 En s u r e  th a t  st r e a m s ,  we t l a n d s ,  et c .  sh o w n  in  Se c t i o n  12  ar e   in c l u d e d  on  al l  fi g u r e s  as  ne e d e d .  In c l u d e  in  co n c e p t u a l  mo d e l   di s c u s s i o n s  as  ap p r o p r i a t e . CA P  Pa r t  2  Se c t i o n  2  fi g u r e s  in c l u d e  we t l a n d s  an d  st r e a m s . Hy d r o g e o l o g i c a n d O t h e r Ge o c h e m i c a l C o n c e p t u a l Mo d e l s 50 De s c r i p t i o n  of  AM E C  ec o l o g i c a l  su r v e y  re p o r t  fi n d i n g s  no t  ut i l i z e d   in  re p o r t  or  in  fi g u r e s .  Da t a  sh o u l d  be  us e d ,  sh o w n  on  fi g u r e s  or   ex p l a i n e d  wh y  no t . Ec o l o g i c a l  da t a  co n c e r n i n g  ve g e t a t i o n  wa s  in c l u d e d  in  th e  CS A  Se c t i o n  12  Risk  Assessment  and  referenced   in  th e  Ec o ‐Ch e c k l i s t s  pr o v i d e d  fo r  ea c h  si t e . Pa g e  4  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Mo d e l i n g 51 Ba t c h  ge o c h e m i c a l  mo d e l i n g  fo r  ea c h  of  th r e e  la y e r s  pe r   co n s t i t u e n t  wi t h  na r r a t i v e  of  wh a t  ha p p e n s  al o n g  fl o w  pa t h .   Se l e c t  fl o w  pa t h  al i g n m e n t  wi t h  MO D  PA T H . As  pr o v i d e d  in  CA P  Pa r t  2  Mo d e l i n g  Ap p e n d i x  B,  Mo d e l  Co n s t r u c t i o n  Section, each  constituent  was   mo d e l e d  in  on e  of  7  la y e r s ,  wh i c h  fa l l  in t o  th e  fo l l o w i n g  ca t e g o r i e s :  Ash  material, Dike  and  ash  storage   ma t e r i a l ,  Al l u v i u m ,  M1  Sa p r o l i t e ,  M2  Sa p r o l i t e ,  Tr a n s i t i o n  Zo n e ,  an d  Fractured  bedrock. Mo d e l i n g 52 De s c r i b e  ge o c h e m i c a l  co n d i t i o n s  an d  me c h a n i s m s ,  an d  ch a r g e s ,   al o n g  fl o w  pa t h s .  DE Q  co n s i d e r s  fl o w  pa t h s  to  be  fr o m  th e   ma x i m u m  co n c e n t r a t i o n  fo r  a  CO I  to  a  re c e p t o r  or  to  th e   co m p l i a n c e  bo u n d a r y . MO D P A T H  wa s  us e d  to  id e n t i f y  an d  de l i n e a t e  fl o w  pa t h s .  Th i s  is  di s p l a y e d  in  CAP  Part  2  Modeling  Appendix   B,  Mo d e l  Ca l i b r a t i o n  in  th e  pa r t i c l e  tr a c k i n g  fi g u r e . Mo d e l i n g 53 Mo d e l  sh o u l d  us e  hi g h e s t  CO P C  in  so u r c e  ar e a  fo r  mo d e l  in p u t .   Th e r e  wi l l  be  di f f e r e n t  fl o w  pa t h s  as  fl o w  pa t h  is  ba s e d  on   ma x i m u m  co n c e n t r a t i o n  of  CO I . Th e  mo d e l  pr e s e n t e d  in  th e  CA P  Pa r t  2  Ap p e n d i x  B  us e s  va r i a b l e  co n c e n t r a t i o n s  in  the  source  areas  to   ma t c h  do w n g r a d i e n t  co n c e n t r a t i o n s  ob s e r v e d  in  mo n i t o r  we l l s .    In  areas  where  the  flow  path  from  the   so u r c e  to  an  el e v a t e d  ob s e r v e d  co n c e n t r a t i o n  in  a  mo n i t o r  we l l  is  observed, the  highest  measured  source   co n c e n t r a t i o n  is  us e d  in  th e  mo d e l .   Mo d e l i n g 54 Im p a c t s  fr o m  Fe ,  Mn  ar e  no t  re l a t e d  to  K d  – ho w  wi l l  mo d e l i n g   ad d r e s s  th e s e  co n s t i t u e n t s ? Th e  gr o u n d w a t e r  mo d e l  do e s  no t  ad d r e s s  Fe  an d  Mn ,  ho w e v e r  th e  geochemical  modeling  report  does   tr e a t  Fe  an d  Mn  as  CO I s  (C A P  Pa r t  2  Ap p e n d i x  E) ,  an d  de t e r m i n e s  th e  forms  they  likely  exist  in  under   co n d i t i o n s  at  th e  re s p e c t i v e  si t e s  (C A P  Pa r t  2  Ap p e n d i x  E  Se c t i o n  2:  Pourbaix  diagrams).  Mo d e l i n g 55 Gr o u n d w a t e r  mo d e l i n g  sh o u l d  us e  si t e  sp e c i f i c  K d s. So r p t i o n  te r m s  we r e  de v e l o p e d  an d  ut i l i z e d  as  pa r t  of  th e  gr o u n d w a t e r  modeling  presented  in  CAP  Part  2,  Ap p e n d i x  B.   Mo d e l i n g 56 De s c r i b e  K d s  an d  HF O  or  so i l  sa m p l e s  in  ar e a s  no t  af f e c t e d  by  as h .    Ex p l a i n  di f f e r e n c e s  be t w e e n  th e s e  K d s  an d  K d s  fr o m  im p a c t e d   ar e a s . A  un i f o r m  Kd  va l u e  fo r  th e  gr o u n d w a t e r  mo d e l  wa s  ut i l i z e d  as  th e s e  values  are  variable  from  sample  to   sa m p l e ,  re g a r d l e s s  of  si t e  lo c a t i o n  (C A P  Pa r t  2,  Ap p e n d i x  A,  Gr o u n d w a t e r  Model). Mo d e l i n g 57 Gr o u n d w a t e r  fl o w  mo d e l i n g  in  CA P  ne e d s  to  ac c o u n t  fo r   cu m u l a t i v e  ef f e c t  of  of f ‐si t e  re c e p t o r  we l l s  (i . e . ,  wa t e r  su p p l y   we l l s ) .  Ne e d  to  co m e  up  wi t h  so m e  as s u m p t i o n s  re g a r d i n g  de p t h   an d  yi e l d .  CS A  re p o r t s  ge n e r a l l y  di s c o u n t  po t e n t i a l  fo r  up g r a d i e n t   fl o w  di r e c t i o n  re s u l t i n g  fr o m  of f ‐si t e  pu m p i n g .  Mo d e l  re s u l t s  ne e d   to  be  in c l u d e d  in  th e  CA P  no w  an d  re v i s e  on c e  re s u l t s  ar e  in  fr o m   da t a  ga p  we l l s  th a t  ar e  lo c a t e d  to  he l p  in f o r m  gr o u n d w a t e r  fl o w   di r e c t i o n  ne a r  th e  pr o p e r t y  bo u n d a r y . Th e  cu m u l a t i v e  ef f e c t  of  of f ‐si t e  re c e p t o r  we l l s  we r e  ac c o u n t e d  fo r  in  the  groundwater  modeling  (CAP  Part   2  Mo d e l i n g  Ap p e n d i x  B) .  Th e  yi e l d  of  th e s e  we l l s  wa s  es t i m a t e d  at  400  gpd, which  is  the  average  EPA   ho u s e h o l d  us a g e .    Th e  gr o u n d w a t e r  mo d e l s  ar e  be i n g  up d a t e d  an d  recalibrated  including  new  data  as  it   ha s  be c o m s  av a i l a b l e  as  pa r t  of  th e  ex p a n d e d  gr o u n d w a t e r  mo d e l  domain  activities, including  water  supply   we l l  in f o r m a t i o n .  Un c e r t a i n i t i e s  an d  li m i t a t i o n s  wi l l  be  pr e s e n t e d  as  part  of  the  results, which  are  expected   to  be  co m p l e t e d  du r i n g  Fa l l  20 1 6 . Mo d e l i n g 58 A d d r e s s  hi s t o r i c  wa t e r  le v e l s  in  po n d  in  gr o u n d w a t e r  mo d e l i n g . Th e  gr o u n d w a t e r  mo d e l  wa s  ca l i b r a t e d  to  st e a d y ‐st a t e  fl o w  co n d i t i o n s  and  considered  water  levels  from   su m m e r  20 1 5 .  Hi s t o r i c  wa t e r  le v e l s  in  th e  po n d s  we r e  no t  mo d e l e d .   The  timing  of  start  of  the  ash   op e r a t i o n s  in  di f f e r e n t  ba s i n s  wa s  co n s i d e r e d  in  th e  gr o u n d w a t e r  model.  The  groundwater  models  are   be i n g  up d a t e d  an d  re c a l i b r a t e d  in c l u d i n g  ne w  da t a  as  it  ha s  be c o m s  available  as  part  of  the  expanded   gr o u n d w a t e r  mo d e l  do m a i n  ac t i v i t i e s ,  in c l u d i n g  hi s t o r i c  wa t e r  le v e l s .   Mo d e l i n g 59 Ne e d  to  di s c u s s  ho w  gr o u n d w a t e r  mo d e l  re s u l t s  ar e  in c o r p o r a t e d   in  su r f a c e  wa t e r  mo d e l  re s u l t s  (i n c l u d i n g  ho w  on ‐si t e  st r e a m s  ar e   in c o r p o r a t e d ) . Th e  CA P  Pa r t  1  Su r f a c e  wa t e r  mo d e l i n g  Ap p e n d i x  de t a i l s  ho w  gr o u n d w a t e r  model  results  are  incorporated   in  su r f a c e  wa t e r  mo d e l  re s u l t s . Mo d e l i n g 60 De e p  ro c k  gr o u n d w a t e r  fl o w  no t  we l l  pr e s e n t e d  re l a t i v e  to  of f ‐si t e   pu m p i n g .  Th i s  ne e d s  to  be  pr e s e n t e d  in  CA P . Pa r t i c l e  fl o w  ma p s  th a t  ta k e  in t o  ac c o u n t  of f s i t e  pu m p i n g  ar e  pr e s e n t e d  in  the  groundwater  modeling   Ap p e n d i x  B  of  th e  CA P  Pa r t  2. Mo d e l i n g 61 Su b s u r f a c e  dr a i n a g e  sy s t e m s  at  di k e / d a m s  sh o u l d  be  sh o w n  an d   po t e n t i a l  im p a c t s  to  fa t e  & tr a n s p o r t  mo d e l i n g  sh o u l d  be   co n s i d e r e d . Su b s u r f a c e  dr a i n a g e  sy s t e m s  ar e  sh o w n  an d  di s c u s s e d  in  Se c t i o n  4  of  the  CSA  reports.  Pa g e  5  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Da t a P r e s e n t a t i o n 62 Gu i d e l i n e s  re q u i r e  – se e p ,  se d i m e n t ,  su r f a c e  wa t e r ,  re c e p t o r  we l l   da t a ,  re s u l t s  sh o w  al l  CO I s  (f i e l d  an d  re s u l t s )  in  ch e m  bo x e s . CA P  Pa r t  2  in c l u d e d  ch e m  bo x  ma p s  fo r  se e p s ,  se d i m e n t s ,  su r f a c e  water, and  groundwater. Chem  boxes  for   re c e p t o r  we l l s  we r e  no t  ab l e  to  be  sh o w n  sp a t i a l l y  fo r  al l  sa m p l i n g  events, however, Figure  1 ‐3  in  the  CSA   Su p p l e m e n t  2  sh o w s  lo c a t i o n  an d  an a l y t i c a l  re s u l t s . Da t a P r e s e n t a t i o n 63 Sh o w  co n c e n t r a t i o n s  ab o v e  PQ L s  on  ch e m  bo x  ma p s ,  no t  ju s t   co n s t i t u e n t s  ab o v e  2L . Ch e m  bo x  ma p s  sh o w  al l  de t e c t e d  co n s t i t u e n t s  fo r  de t e c t i o n  an d  as s e s s m e n t  monitoring  constituents  as   pa r t  of  th e  CA P  Pa r t  2. Da t a P r e s e n t a t i o n 64 A d d  ve r t i c a l  gr a d i e n t s  to  fi g u r e s  – pl a n  vi e w . CA P  Pa r t  1  Se c t i o n  3  in c l u d e d  fi g u r e s  de p i c t i n g  ve r t i c a l  gr a d i e n t s  be t w e e n  shallow  and  deep  wells, and   be t w e e n  de e p  an d  be d r o c k  we l l s .   Da t a P r e s e n t a t i o n 65 A d d  ve r t i c a l  gr a d i e n t  ma p s . CA P  Pa r t  1  Se c t i o n  3  in c l u d e s  fi g u r e s  de p i c t i n g  ve r t i c a l  gr a d i e n t s  be t w e e n  shallow  and  deep  wells, and   be t w e e n  de e p  an d  be d r o c k  we l l s . Da t a P r e s e n t a t i o n 66 De v e l o p  a  po t e n t i o m e t r i c  su r f a c e  ma p  fo r  th e  tr a n s i t i o n  zo n e   we l l s . De e p  fl o w  la y e r  we l l s  ar e  us e d  to  in v e s t i g a t e  th e  tr a n s i t i o n  zo n e ,  an d  potentiometric  surfaces  figures  were   de v e l o p e d  as  pa r t  of  th e  CA P  Pa r t  2  as  we l l  as  CS A  Su p p l e m e n t  2. Da t a P r e s e n t a t i o n 67 Sh o w  ca t i o n ‐an i o n  ba l a n c e  va l u e s  on  Pi p e r  di a g r a m s ,  re m o v e   re s u l t s  wi t h  ba l a n c e  di f f e r e n c e s  > 10 % . Pi p e r  di a g r a m  fi g u r e s  ar e  in  Se c t i o n  10  of  th e  CS A .  Up d a t e d  pi p e r  di a g r a m s  utilizing  Round  5  data  have   be e n  in c l u d e d  in  th e  CS A  Su p p l e m e n t  2  to  in c l u d e  on l y  th o s e  ev e n t s  with  balance  differences  that  are  less   th a n  10 % . Da t a P r e s e n t a t i o n 68 Sh o w  al l  re c e p t o r  we l l s  on  fi g u r e s  gi v e n  th e  ex i s t i n g  fi g u r e   ex t e n t s . Fi g u r e  1 ‐3  in  th e  CS A  Su p p l e m e n t  2  pr e s e n t s  al l  re c e p t o r  we l l s  an d  their  analytical  results.  Those  water   su p p l y  we l l s  th a t  ca n  be  sh o w n  in  th e  vi e w p o r t s  of  th e  th e  po t e n t i o m e t r i c  surface  and  isoconcentration   fi g u r e s  in  th e  CS A  Su p p l e m e n t  2  ar e  al s o  in c l u d e d .    Da t a P r e s e n t a t i o n 69 N e e d  on e  ma p  wi t h  al l  re c e p t o r  we l l s  an d  MW s . F i g u r e  1 ‐3  in  th e  CS A  Su p p l e m e n t  2  pr e s e n t s  al l  re c e p t o r  we l l s  an d  their  analytical  results.   Da t a P r e s e n t a t i o n 70 S h o w  se e p  re s u l t s  wi t h  ch e m  bo x e s . S e e p s  an d  DE Q  Se e p s  we r e  pr o v i d e d  in  CA P  Pa r t  1  Se c t i o n  2  fi g u r e s .   Da t a P r e s e n t a t i o n 71 Sh o w  to p o g r a p h y  on  gr o u n d w a t e r  su r f a c e  co n t o u r  ma p s  (a d d   el e v a t i o n  la b e l s  to  co n t o u r s ) . To p o g r a p h y  ha s  be e n  in c l u d e d  on  th e  po t e n t i o m e t r i c  su r f a c e  fi g u r e s  provided  in  CSA  Supplement  2. Da t a P r e s e n t a t i o n 72 Ad d  ge o l o g i c  da t a  an d  is o ‐co n c e n t r a t i o n  da t a  (i n c l u d e  K d s)  on   cr o s s ‐se c t i o n s . Cr o s s ‐se c t i o n s  wi l l  be  ex p a n d e d  wi t h  ad d i t i o n a l  as s e s s m e n t  mo n i t o r i n g  wells  for  the  CSA  Supplement  2.  Th e s e  wi l l  in c l u d e  li t h o l o g y ,  re c o v e r y ,  RQ D ,  wh e r e  av a i l a b l e ,  as  we l l  as  the  vertical  extent  of  COIs Da t a P r e s e n t a t i o n 73 A d d  fi g u r e  sh o w i n g  pH ,  Eh ,  et c .  re s u l t s . C A P  Pa r t  1  Se c t i o n  2  Ch e m  Bo x  fi g u r e s  in c l u d e d  fi e l d  pa r a m e t e r s . Da t a P r e s e n t a t i o n 74 A d d  ta b l e  w/ N P D E S  sa m p l e  ev e n t  re s u l t s . A  NP D E S  sa m p l e  ev e n t s  re s u l t s  ta b l e  ha s  be e n  pr o v i d e d  in  Se c t i o n  1  of  the  CSA  Supplement  2. Da t a P r e s e n t a t i o n 75 Ch e m  bo x  fi g u r e s  fo r  gr o u n d w a t e r  – ad d  ro u n d  2  da t a  as  co l u m n   to  ri g h t  of  ex i s t i n g  da t a . Ro u n d  2  ch e m b o x  fi g u r e s  we r e  in c l u d e d  in  CA P  Pa r t  2. Da t a P r e s e n t a t i o n 76 Is o  co n t o u r s  ‐   Ne e d  to  ad d r e s s  ho w  is o  co n t o u r  li n e s  ar e  sh o w n  on   fi g u r e s .  Sh o w  pa r t  of  th e  li n e  as  da s h e d  wh e r e  un c e r t a i n t y  ex i s t s   (i . e . ,  no  do w n g r a d i e n t  da t a  to  he l p  de t e r m i n e  ex t e n t  of  is o   co n t o u r ) .  De p i c t  co n c e n t r a t i o n s  ab o v e  re p o r t i n g  li m i t . Ad d  is o ‐co n t o u r  fi g u r e  fo r  st r o n t i u m . Is o c o n c e n t r a t i o n  ma p s  ut i l i z i n g  Ro u n d  5  an a l y t i c a l  re s u l t s ,  in c l u d i n g  strontium, where  it  is  a  COI, are   in c l u d e d  in  CS A  Su p p l e m e n t  2. Da t a P r e s e n t a t i o n 77 Ne e d  to  sh o w  na t u r a l  re s o u r c e  in f o r m a t i o n  (i . e . ,  su r f a c e  wa t e r   fe a t u r e s ,  we t l a n d  fe a t u r e s ,  he r o n  ro o k e r y  at  Bu c k ,  et c . )  on  “b a s e   ma p ”  fi g u r e s . CA P  Pa r t  2  Se c t i o n  2  fi g u r e s  in c l u d e s  we t l a n d s  an d  st r e a m s  wh i c h  were  delineated  by  USACE.  Other   na t u r a l  re s o u r c e s  we r e  in c l u d e d  on  fi g u r e s  as  pa r t  of  th e  Ec o ‐Ch e c k l i s t  referenced  in  Section  12  of  the  CSA. Da t a P r e s e n t a t i o n 78 En s u r e  th a t  st r e a m s ,  we t l a n d s ,  et c .  sh o w n  in  Se c t i o n  12  ar e   in c l u d e d  on  al l  fi g u r e s  as  ne e d e d . CA P  Pa r t  2  Se c t i o n  2  fi g u r e s  in c l u d e d  we t l a n d s  an d  st r e a m s  as  ne e d e d . Da t a P r e s e n t a t i o n 79 Mo d i f y  re s u l t s  ta b l e s  to  in c l u d e  fi e l d  pa r a m e t e r s  DO s ,  Eh ,  sp e c   co n d u c t a n c e ,  pH ,  NT U  in  al l  re s u l t s  ta b l e s . Fi e l d  pa r a m e t e r s  we r e  in c l u d e d  on  th e  CA P  Pa r t  2  re s u l t s  ta b l e s ,  re f e r e n c e d  in  Section  2, as  well  as  the  CSA   Su p p l e m e n t  2  re s u l t s  ta b l e s ,  re f e r e n c e d  in  Se c t i o n  3. Su r f a c e , G r o u n d w a t e r Di s c h a r g e 80 De s c r i b e  SW  hy d r o l o g y  (s t r e a m s ,  we t l a n d s )  in  CA P  an d  ho w   re l a t e s  to  se e p s  in  CS M . CA P  Pa r t  2,  Se c t i o n  3  pe r t a i n s  to  th e  Si t e  Co n c e p t u a l  mo d e l ,  an d  it  discusses  surface  water  and  seeps  in   re l a t i o n  to  si t e  so u r c e  ar e a s . Su r f a c e , G r o u n d w a t e r Di s c h a r g e 81 Ch e c k  fo r  al i g n m e n t  of  de s c r i p t i o n  of  st r e a m s  an d  we t l a n d s  in   Se c t i o n  12 . CA P  Pa r t  2,  Se c t i o n  3  pe r t a i n s  to  th e  Si t e  Co n c e p t u a l  mo d e l ,  an d  it  discusses  surface  water  and  seeps  in   re l a t i o n  to  si t e  so u r c e  ar e a s . Pa g e  6  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐1:    Re s p o n s e s  to  Gl o b a l  NC D E Q  Co m m e n t s Ty p e Co m m e n t   Nu m b e r Co m m e n t G e n e r a l  Re s o l u t i o n Su r f a c e , G r o u n d w a t e r Di s c h a r g e 82 S h o w  al l  su r f a c e  wa t e r  fe a t u r e s  on  ma p s  an d  cr o s s  se c t i o n s . CS A  an d  CA P  si t e  ma p s  in c l u d e  la b e l s  of  ma j o r  su r f a c e  wa t e r  bo d i e s  at  each  site. In  addition, the  CSA   in c l u d e d  su r f a c e  wa t e r  in f o r m a t i o n  in  Fi g u r e  4 ‐4:  Su r f a c e  Wa t e r  Bo d i e s .  CAP  Part  2  included  Figure  3 ‐1: Site   Co n c e p t u a l  Mo d e l ,  an d  Fi g u r e  3 ‐2:  Cr o s s  Se c t i o n  wi t h  th e s e  fe a t u r e s .   Su r f a c e , G r o u n d w a t e r Di s c h a r g e 83 A d d  wo r d i n g  on  st r e a m  fl o w  me a s u r e m e n t s  pe r f o r m e d . St r e a m f l o w  me a s u r e m e n t s  ha v e  be e n  in c o r p o r a t e d  in t o  th e  ex p a n d e d  groundwater  model  domain   ac t i v i t i e s .  Th e  gr o u n d w a t e r  mo d e l s  ar e  be i n g  up d a t e d  an d  re c a l i b r a t e d  including  new  data  as  it  has   be c o m s  av a i l a b l e  an d  is  ex p e c t e d  to  be  co m p l e t e d  du r i n g  Fa l l  20 1 6 . Ri s k A s s e s s m e n t 84 In c l u d e  no n ‐tr e s p a s s i n g  re c r e a t i o n  us e r s  of  su r f a c e  wa t e r  an d   dr i n k i n g  wa t e r  we l l  re c e p t o r s . In  th e  st a n d ‐al o n e  Ri s k  As s e s s m e n t  re p o r t ,  re c r e a t i o n a l  sw i m m e r s ,  boaters, waders, and  fishers  are   in c l u d e d  in  th e  re c e p t o r s ,  as  ar e  cu r r e n t / f u t u r e  of f ‐si t e  re s i d e n t s .    In  addition, a  separate  risk  assessment   ha s  be e n  pr o v i d e d  su b s e q u e n t  to  th e  CS A  re p o r t  by  Du k e  En e r g y  vi a  Haley  & Aldritch. Ri s k A s s e s s m e n t 85 Co a l  as h  sh o u l d  be  in c l u d e d  as  pr i m a r y  af f e c t e d  me d i a  un t i l  it  is   co m p l e t e l y  re m o v e d  or  ot h e r w i s e  ma d e  in a c c e s s i b l e  to  hu m a n   co n t a c t .  Re v i s e  Ta b l e s  12 ‐1,  12 ‐2,  an d  wo r d i n g  in  Se c t i o n  12 . A  se p a r a t e  ri s k  as s e s s m e n t  ha s  be e n  pr o v i d e d  su b s e q u e n t  to  th e  CS A  report  by  Duke  Energy  via  Haley  &  Al d r i t c h . Ri s k A s s e s s m e n t 86 E x p a n d  sp e c i a t i o n  re s u l t s  di s c u s s i o n  wi t h  re g a r d s  to  re c e p t o r s . A  se p a r a t e  ri s k  as s e s s m e n t  ha s  be e n  pr o v i d e d  su b s e q u e n t  to  th e  CS A  report  by  Duke  Energy  via  Haley  &  Al d r i t c h . In a d e q u a t e  Da t a  – Al l   So u r c e  Ar e a s 87 Wh e r e  2L  ex c e e d a n c e s  in t e r c e p t  ri v e r s / s t r e a m s  im p l i c a t i o n s   sh o u l d  be  di s c u s s e d .  Di s c u s s  ve r t i c a l  gr a d i e n t s  fo r  we l l  pa i r s   ad j a c e n t  to  ri v e r s / s t r e a m s . Ve r t i c a l  hy d r a u l i c  gr a d i e n t s  we r e  ca l c u l a t e d  fo r  Ro u n d  2  da t a ,  an d  were  included  in  CAP  Part  1. The   pa t t e r n s  in  ve r t i c a l  gr a d i e n t s  ar e  di s c u s s e d  in  CA P  Pa r t  2  Se c t i o n  2. 3 . 1 . 1 . In a d e q u a t e  Da t a  – Al l   So u r c e  Ar e a s 88 If  a  MW  do e s  no t  ex i s t  be t w e e n  a  2L  ex c e e d a n c e  an d  re c e p t o r   (s t r e a m  an d  wa t e r  su p p l y  we l l )  ad d i t i o n a l  we l l s  or  tr a n s p o r t   mo d e l i n g  is  ne e d e d  to  fi l l  da t a  ga p . Du k e  En e r g y  ha s  in s t a l l e d  ad d i t i o n a l  mo n i t o r i n g  we l l s  to  ad d r e s s  co n c e r n s  to  refine  understanding  of   ex c e e d a n c e s .    Re s u l t s  fr o m  th e  Ro u n d  5,  in c l u d i n g  ad d i t i o n a l  as s e s s m e n t  wells, has  been  included  in  CSA   Su p p l e m e n t  2.    In a d e q u a t e  Da t a  – Al l   So u r c e  Ar e a s 89 If  un c e r t a i n t y  ex i s t s  ab o u t  lo c a l  fl o w  du e  to  in s u f f i c i e n t  nu m b e r  or   pl a c e m e n t  of  we l l s ,  th e n  ad d i t i o n a l  we l l s  sh o u l d  be  in s t a l l e d .    Sa m e  co m m e n t  ap p l i e s  fo r  un c e r t a i n t y  on  ve r t i c a l  gr a d i e n t s . Du k e  En e r g y  ha s  in s t a l l e d  ad d i t i o n a l  mo n i t o r i n g  we l l s  to  ad d r e s s  co n c e r n s  to  refine  understanding  of   ex c e e d a n c e s .    Re s u l t s  fr o m  th e  Ro u n d  5,  in c l u d i n g  ad d i t i o n a l  as s e s s m e n t  wells, has  been  included  in  CSA   Su p p l e m e n t  2.    Pa g e  7  of  7 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  2 ‐2:  To t a l  an d  Ef f e c t i v e  Po r o s i t y  an d  Sp e c i f i c  St o r a g e  by  Fl o w  La y e r Hy d r o s t r a t i g r a p h i c U n i t Tr a n s i t i o n Z o n e ( T Z ) Be d r o c k ( B R ) - F r a c t u r e d Be d r o c k ( B R ) - D e n s e No t e s : 3. T a b l e r e v i s e d 0 7 / 1 4 / 2 0 1 6 . 1. R a n g e s b a s e d o n p u b l i s h e d v a l u e s ( D o m e n i c o a n d M i f f l i n , 1 9 6 5 ; S i n g h a l a n d G u p t a , 2 0 1 0 ) . 2. E f f e c t i v e p o r o s i t y a n d s p e c i f i c y i e l d a r e n o t s y n o n y m o u s . F o r p r a c t i c a l p u r p o s e s , t h e y m a y b e e s t i m a t e d a s a p p r o x i m a t e l y e q u al i n v a l u e . Sp e c i f i c S t o r a g e ( 1 / f t ) 1. 0 E - 0 6 - 2 . 1 E - 0 5 < 1 . 0 E - 0 6 Se c o n d a r y ( E f f e c t i v e ) Po r o s i t y / S p e c i f i c Y i e l d (% ) 5. 0 - 1 0 . 0 2. 0 - 5 . 0 To t a l P o r o s i t y ( % ) 5 - 1 5 5 - 1 0 0 - 3 0 - 5 < 1 . 0 E - 0 6 Pa g e  1  of  1 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g AB - 1 0 D A B - 2 5 B R A B - 2 5 D A B - 3 0 B R A B - 3 0 D A B - 3 0 S A B - 3 5 B R A B - 5 D A B - 5 D 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 20 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N F D DR - A B - 1 0 D D R - A B - 2 5 B R D R - A B - 2 5 D D R - A B - 3 0 B R D R - A B - 3 0 D D R - A B - 3 0 S D R - A B - 3 5 B R D R - A B - 5 D D R - A B - 5 D - F D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U Al k a l i n i t y , H C O 3 N - - u g / l 8 4 7 0 0 8 4 3 0 0 6 1 1 0 0 1 9 1 0 0 0 1 2 0 0 0 0 5 3 0 0 2 5 4 0 0 0 1 7 6 0 0 0 1 6 8 0 0 0 Al k a l i n i t y , l a b N - - u g / l 8 4 7 0 0 8 4 3 0 0 J - 6 1 1 0 0 1 9 1 0 0 0 1 2 0 0 0 0 5 3 0 0 2 5 4 0 0 0 1 7 6 0 0 0 1 6 8 0 0 0 Al u m i n u m D - - u g / l 1 2 5 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U Al u m i n u m T - - u g / l 1 4 9 8 5 . 5 J 2 2 0 1 7 6 7 6 . 8 J 1 1 9 1 0 0 U 1 0 0 U 1 0 0 U An t i m o n y D - - u g / l 2 0 . 5 U 0 . 5 U 5 U 5 U 0 . 5 U 5 U 5 U 5 U An t i m o n y T 1 IM A C u g / l 2 0. 5 U 0 . 5 U 5 U 5 U 0 . 5 U 5 U 5 U 0 . 5 U Ar s e n i c D - - u g / l 0 . 2 9 0 . 1 5 0 . 1 2 1 . 2 1 U 0 . 0 8 8 J 1 2 . 8 3 . 4 3 . 2 Ar s e n i c T 10 02 L u g / l 0 . 3 0 . 1 2 0 . 2 1 . 3 1 U 0 . 0 7 8 J 11.3 5.6 4.8 Ba r i u m D - - u g / l 1 5 2 4 0 . 6 2 0 . 4 1 3 5 9 8 . 3 8 9 . 8 3 6 5 5 8 . 4 5 9 Ba r i u m T 7 0 0 0 2 L u g / l 1 3 8 4 4 . 9 2 5 . 2 1 3 6 1 1 0 9 4 . 9 4 0 3 6 0 . 7 6 2 . 9 Be r y l l i u m D - - ug / l 0 . 0 2 4 J + 0 . 1 U 0 . 0 1 6 J 0 . 3 1 J 1 U 0 . 5 5 1 U 0 . 1 2 J 0 . 2 4 J Be r y l l i u m T 4 IM A C u g / l 0 . 0 1 5 J + 0 . 1 U 0 . 0 8 1 J + 0 . 1 5 J 1 U 0 . 5 7 1 U 0 . 1 3 J 0 . 0 1 4 J + Bo r o n D - - u g / l 2 9 7 3 5 7 7 8 7 2 9 5 2 7 8 2 5 9 2 7 3 5 0 4 5 0 1 Bo r o n T 70 0 02 L u g / l 3 2 2 3 9 9 84 9 31 0 3 1 4 2 7 5 2 9 8 5 0 5 5 4 0 Ca d m i u m D - - u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 0 . 0 7 5 J 0 . 8 U 0 . 8 U 0 . 8 U Ca d m i u m T 2 0 2 L u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 0 . 0 7 8 J 0 . 8 U 0 . 8 U 0 . 0 8 U Ca l c i u m T - - u g / l 3 9 3 0 0 4 5 6 0 0 3 1 8 0 0 9 5 7 0 0 6 4 8 0 0 8 9 4 0 9 3 2 0 0 6 5 9 0 0 J 5 1 0 0 J Ca r b o n N - - u g / l 6 8 0 J 5 2 0 J 6 0 0 J 1 0 0 0 U 1 0 0 0 U 5 5 0 J 1 0 0 0 1 0 0 0 U 1 0 0 0 U Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l 1 6 4 0 0 2 2 2 0 0 2 0 2 0 0 1 4 6 0 0 2 0 9 0 0 1 0 0 0 0 1 1 7 0 0 1 9 6 0 0 2 0 0 0 0 Ch r o m i u m D - - u g / l 1 J + 0 . 5 2 J + 0 . 8 8 J + 5 U 5 U 0 . 2 4 J + 5 U 5 U 5 U Ch r o m i u m T 10 02 L u g / l 0 . 6 9 J + 7 . 8 9 . 6 2 . 7 J 1 . 1 J + 0 . 4 5 J + 1 . 4 J + 5 U 1 . 6 J + Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l 0. 2 9 0 . 5 4 0. 0 4 7 0 . 0 1 3 J 0 . 0 3 U 0 . 0 1 3 J 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U Co b a l t D - - u g / l 0 . 6 7 0 . 0 7 4 J 0 . 3 2 1 U 0 . 2 5 J 2 6 . 8 1 U 2 . 2 2 Co b a l t T 1 IM A C u g / l 0 . 3 2 0 . 2 7 0 . 7 2 1 U 0 . 2 8 J 28.2 1 U 2.3 2.2 Co p p e r D - - u g / l 2 . 1 J + 0 . 1 3 J 1 . 3 5 U 5 U 4 . 4 5 U 5 U 5 U Co p p e r T 1 0 0 0 0 2 L u g / l 1 . 7 0 . 8 8 0 . 6 9 5 U 5 U 0 . 4 J 5 U 5 U 0 . 5 U Ir o n D - - u g / l 6 7 . 3 5 0 U 5 0 U 1 5 3 1 3 4 4 0 . 8 J 9 9 . 8 9 7 2 9 7 5 Ir o n T 30 0 02 L u g / l 1 1 0 7 8 . 1 2 6 0 32 5 22 0 1 5 5 1 0 2 J + 1080 1090 Le a d D - - u g / l 0 . 1 7 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 1 U 1 U Le a d T 1 5 0 2 L u g / l 0 . 1 U 0 . 2 5 0 . 3 1 U 1 U 0 . 1 1 1 U 1 U 0 . 1 U Ma g n e s i u m T - - u g / l 5 9 1 0 J + 9 7 1 0 1 2 2 0 0 1 5 2 0 0 1 0 9 0 0 5 5 8 0 1 8 3 0 0 1 3 8 0 0 J + 2 1 4 J + Ma n g a n e s e D - - u g / l 8 . 8 6 2 . 2 2 5 1 5 0 2 4 5 3 1 4 2 0 2 7 9 1 5 0 0 1 5 0 0 Ma n g a n e s e T 50 02 L u g / l 3 . 8 J 68 . 8 3 2 4 5 1 5 5 2 0 1 5 0 0 2 8 6 1 4 9 0 1 5 9 0 Me r c u r y D - - u g / l 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U Me r c u r y T 1 0 2 L u g / l 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U Me t h a n e N - - u g / l 1 6 . 4 1 0 U 1 0 U 3 2 . 9 2 9 5 0 . 2 4 6 . 4 3 8 . 4 3 4 . 7 Mo l y b d e n u m D - - u g / l 1 . 9 0 . 9 4 9 . 5 2 . 5 J 5 U 0 . 5 U 1 1 . 5 3 J 3 J Mo l y b d e n u m T - - u g / l 2 . 3 0 . 8 3 1 0 . 2 2 . 9 J 5 U 0 . 5 U 1 1 . 5 3 . 6 J 3 . 2 Ni c k e l D - - u g / l 2 . 3 J + 2 . 1 3 5 U 5 U 8 . 2 5 U 5 U 5 U Ni c k e l T 1 0 0 0 2 L u g / l 1 . 5 4 . 7 3 . 5 5 U 5 U 8 . 6 5 U 5 U 3 . 6 Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U Po t a s s i u m T - - u g / l 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 1 5 3 0 0 3 9 7 0 J 3 7 4 0 0 Se l e n i u m D - - u g / l 0 . 4 3 J 0 . 5 U 0 . 5 U 5 U 5 U 0 . 5 U 5 U 5 U 5 U Se l e n i u m T 2 0 0 2 L u g / l 0 . 5 U 0 . 5 U 0 . 5 U 5 U 5 U 0 . 3 9 J 5 U 5 U 0 . 5 U So d i u m T - - u g / l 2 7 4 0 0 J + 2 5 5 0 0 2 0 7 0 0 1 6 3 0 0 1 3 6 0 0 2 5 4 0 0 2 6 2 0 0 2 0 0 0 0 J + 3 9 5 0 0 J + St r o n t i u m D - - u g / l 1 2 1 0 5 8 5 1 2 5 8 8 8 4 1 9 1 4 4 6 9 9 3 8 1 3 8 2 St r o n t i u m T - - u g / l 1 1 2 0 6 4 5 1 3 8 9 1 6 4 6 2 1 5 1 7 5 8 4 0 9 4 1 8 Su l f a t e N 25 0 0 0 0 02 L u g / l 2 6 5 0 0 9 8 0 0 0 8 4 6 0 0 1 2 3 0 0 0 9 2 0 0 0 8 2 7 0 0 1 2 1 0 0 0 7 7 5 0 0 7 4 4 0 0 Su l f i d e N - - u g / l 1 0 0 U 1 0 0 U J 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 4 8 0 1 0 0 U 1 0 0 U Th a l l i u m D - - u g / l 0 . 1 U 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 1 U 1 U Th a l l i u m T 0 . 2 I M A C u g / l 0 . 1 U 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 1 U 0 . 1 U To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l 1 7 4 0 0 0 2 5 9 0 0 0 2 2 3 0 0 0 4 2 6 0 0 0 2 9 5 0 0 0 1 6 9 0 0 0 4 2 8 0 0 0 3 4 0 0 0 0 3 2 5 0 0 0 To t a l O r g a n i c C a r b o n N - - u g / l - - - - - - - - - - - - - - - - - - To t a l S u s p e n d e d S o l i d s N - - u g / l 2 2 2 0 0 2 5 0 0 U 2 7 0 0 2 6 0 0 2 5 0 0 U 2 5 0 0 U 1 4 8 0 0 2 5 0 0 U 2 5 0 0 U Ur a n i u m , N a t u r a l T - - u g / l - - 0 . 1 5 J 0 . 2 4 J 5 U 5 U 0 . 5 U 0 . 7 7 J - - - - Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Pa g e 1 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g AB - 1 0 D A B - 2 5 B R A B - 2 5 D A B - 3 0 B R A B - 3 0 D A B - 3 0 S A B - 3 5 B R A B - 5 D A B - 5 D 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 20 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N F D DR - A B - 1 0 D D R - A B - 2 5 B R D R - A B - 2 5 D D R - A B - 3 0 B R D R - A B - 3 0 D D R - A B - 3 0 S D R - A B - 3 5 B R D R - A B - 5 D D R - A B - 5 D - F D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l 1 . 8 0 . 2 2 J + 0 . 1 5 J + 3 U 3 U 0 . 1 1 J + 0 . 7 8 J + 0 . 9 7 J 1 J Va n a d i u m T 0. 3 IM A C u g / l 0. 8 9 0. 2 4 J 0. 4 6 3 U 3 U 0.33 3 U 3 U 0 . 1 3 J Zi n c D - - u g / l 2 . 7 J + 1 0 U 1 0 J 2 . 7 J 2 . 7 J 3 8 1 0 U 1 0 U 3 J + Zi n c T 1 0 0 0 0 2 L u g / l 2 . 8 J 1 0 U 1 0 U 5 . 1 J 3 . 2 J 4 1 . 5 1 0 U 1 0 U 1 0 U Di s s o l v e d O x y g e n N - - m g / l - - 0 . 5 0 . 8 0 . 6 0 . 3 0 . 2 0 . 1 - - - - Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V - - - 2 2 . 2 6 9 . 8 - 7 4 . 3 - 1 0 3 . 3 3 1 2 . 1 - 2 0 8 . 5 - - - - pH N 6. 5 - 8 . 5 02 L S U - - 7 . 6 6 . 9 7 . 4 7 . 5 5 7.5 -- - - Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m - - 4 2 7 . 3 3 6 8 . 5 6 3 3 4 7 2 . 4 2 4 5 . 3 7 5 0 - - - - Sp e c i f i c C o n d u c t i v i t y N - - u S / c m - - - - - - - - - - - - - - - - - - Te m p e r a t u r e N - - D e g C - - 2 0 . 5 2 5 . 3 2 0 . 7 2 3 2 0 . 5 2 1 . 3 - - - - Tu r b i d i t y , f i e l d N - - N T U - - 1 . 9 8 . 8 8 . 1 5 . 7 7 . 3 7 . 4 - - - - 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) Pa g e 2 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : AS - 1 2 S A S - 2 D A S - 8 B R A S - 8 B R A S - 8 D B G - 1 D B G - 1 D B G - 5 D B G - 5 D 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 20 1 6 3 / 2 8 / 2 0 1 6 4 / 4 / 2 0 1 6 3 / 2 8 / 2 0 1 6 4 / 4 / 2 0 1 6 NN N F D N N N N N DR - A S - 1 2 S D R - A S - 2 D D R - A S - 8 B R D R - F D - A S - 8 B R D R - A S - 8 D D R - B G - 1 D D R - B G - 1 D D R - B G - 5 D D R - B G - 5 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 1 2 1 0 0 - - 5 0 0 0 U - - 18 4 0 0 0 2 5 1 0 0 0 1 7 2 0 0 0 1 8 5 0 0 0 1 2 0 0 0 0 6 0 3 0 0 - - 1 1 6 0 0 0 - - 18 4 0 0 0 2 5 1 0 0 0 J - 1 7 2 0 0 0 1 8 5 0 0 0 1 2 0 0 0 0 7 2 4 0 0 - - 1 1 6 0 0 0 - - 10 0 U 5 0 . 3 J 1 0 0 U 1 0 0 U 1 0 0 U 7 4 J - - 1 0 0 U - - 10 0 U 1 3 0 1 0 0 U 1 0 0 U 1 0 0 U 1 0 6 - - 1 0 0 U - - 0. 5 U 5 U 5 U 5 U 0 . 5 U 0 . 9 6 - - 0 . 5 U - - 0. 5 U 5 U 5 U 5 U 0 . 5 U 1.1 -- 0 . 5 U - - 0. 1 3 1 U 1 U 1 U 0 . 2 3 2 . 4 - - 0 . 1 U - - 0. 2 1 1 U 1 U 1 U 0 . 1 6 2 . 1 - - 0 . 1 U - - 19 . 4 1 7 0 8 0 . 1 7 9 6 4 . 5 5 U - - 1 5 - - 21 . 3 1 9 0 7 9 . 3 8 1 . 4 4 8 . 9 2 . 6 J - - 1 6 . 5 - - 0. 0 5 6 J 0 . 2 7 J 0 . 1 1 J + 1 U 0 . 0 8 2 J + 0 . 1 U - - 0 . 1 U - - 0. 0 2 5 J + 0 . 3 J 0 . 1 9 J 0 . 4 5 J 0 . 0 4 5 J + 0 . 1 U - - 0 . 1 U - - 81 0 6 0 1 5 0 U 5 0 U 5 0 U 9 1 - - 5 0 U - - 89 4 7 1 0 50 U 5 0 U 5 0 U 9 3 . 1 - - 5 0 U - - 0. 0 8 U 0 . 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 0 . 0 8 U - - 0 . 0 8 U - - 0. 0 8 U 0 . 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 0 . 0 8 U - - 0 . 0 8 U - - 37 9 0 0 9 9 4 0 0 6 5 0 0 0 7 0 0 0 0 2 7 6 0 0 3 6 1 0 0 - - 2 5 0 0 0 - - 64 0 J 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U - - - - - - - - 18 1 0 0 1 7 5 0 0 6 8 0 0 5 6 0 0 5 3 0 0 - - 5 9 0 0 - - 6 2 0 0 0. 2 3 J + 5 U 5 U 1 . 1 J + 0 . 4 4 J + 6 . 8 - - 0 . 3 7 J - - 0. 4 4 J + 3 . 1 J + 1 . 2 J + 5 U 0 . 3 J + 6 . 4 - - 0 . 8 1 J + - - 0. 0 3 U 0 . 0 3 U 0 . 0 4 4 0 . 0 3 U 0 . 0 3 U J - - 4 --0.072 0. 6 7 1 . 4 1 U 1 U 0 . 0 6 2 J 0 . 2 3 - - 0 . 0 1 7 J - - 0. 6 6 1. 5 1 U 1 U 0 . 1 1 0 . 3 - - 0 . 0 3 1 J - - 0. 8 6 5 U 5 U 5 U 0 . 1 6 J + 1 . 7 - - 0 . 8 2 - - 0. 5 4 5 U 5 U 5 U 0 . 5 U 1 . 2 - - 0 . 5 U - - 38 . 9 J 2 0 8 0 1 4 8 1 4 6 7 9 6 5 0 U - - 5 0 U - - 32 2 2 2 9 0 16 1 1 5 6 10 2 0 54.2 -- 5 0 U - - 0. 1 U 1 U 1 U 1 U 0 . 1 U 0 . 1 U - - 0 . 1 U - - 0. 1 U 1 U 1 U 1 U 0 . 1 U 0 . 1 U - - 0 . 1 U - - 30 3 0 0 3 3 2 0 0 1 0 2 0 0 1 1 6 0 0 9 5 9 0 1 1 2 0 0 - - 1 4 7 0 0 - - 12 3 2 0 7 0 9 6 6 9 3 2 9 3 3 5 U - - 4 1 - - 13 5 2 3 5 0 8 9 2 9 7 6 6 6 8 5 U - - 1 3 . 9 - - 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U - - 0 . 2 U - - 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U - - 0 . 2 U - - 10 U 1 0 U 1 5 . 4 J - 1 7 . 3 2 8 . 6 - - 1 . 9 J + - - 1 . 5 J + 0. 3 5 J 5 U 5 U 5 U 0 . 2 6 J 1 9 . 6 - - 0 . 2 9 J - - 0. 4 2 J 5 U 5 U 5 U 0 . 3 8 J 1 7 . 6 - - 0 . 2 5 J - - 4 5 U 5 U 5 U 0 . 4 8 J 1 . 3 - - 0 . 5 U - - 4. 1 5 U 5 U 5 U 0 . 5 7 1 . 1 - - 0 . 5 U - - 24 2 0 U 2 0 U 2 0 U 2 0 U 2 2 0 - - 2 4 0 - - 50 0 0 U 2 6 3 0 J 3 1 5 0 J 5 0 0 0 U 5 0 0 0 U 4 9 0 0 J - - 5 0 0 0 U - - 0. 5 U 5 U 5 U 5 U 0 . 5 U 0 . 7 5 - - 0 . 5 U - - 0. 5 U 5 U 5 U 5 U 0 . 5 U 0 . 5 1 - - 0 . 5 U - - 31 5 0 0 2 8 4 0 0 1 3 8 0 0 1 3 3 0 0 1 3 9 0 0 2 9 3 0 0 - - 1 7 8 0 0 - - 48 2 7 1 3 3 9 5 3 9 1 2 8 7 8 9 - - 2 4 0 - - 52 5 8 0 6 4 0 2 4 0 6 2 0 8 1 1 2 - - 2 4 8 - - 78 3 0 0 1 7 9 0 0 0 6 9 5 0 0 6 6 8 0 0 2 0 9 0 0 - - 1 0 6 0 0 0 - - 3 4 1 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U - - 1 0 0 U - - 0. 1 U 1 U 1 U 1 U 0 . 1 U 0 . 1 U - - 0 . 1 U - - 0. 1 U 1 U 1 U 1 U 0 . 1 U 0 . 1 U - - 0 . 1 U - - 30 2 0 0 0 53 1 0 0 0 29 3 0 0 0 3 1 4 0 0 0 1 9 3 0 0 0 2 8 1 0 0 0 - - 1 6 5 0 0 0 - - -- - - - - - - - - 1 3 0 0 - - 1 0 0 0 U - - 25 0 0 U 5 7 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 5 3 0 0 U - - 2 5 0 0 U - - -- - - 5 U 5 U 0 . 5 U - - - - 0 . 4 J - - Pa g e 3 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) AS - 1 2 S A S - 2 D A S - 8 B R A S - 8 B R A S - 8 D B G - 1 D B G - 1 D B G - 5 D B G - 5 D 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 20 1 6 3 / 2 8 / 2 0 1 6 4 / 4 / 2 0 1 6 3 / 2 8 / 2 0 1 6 4 / 4 / 2 0 1 6 NN N F D N N N N N DR - A S - 1 2 S D R - A S - 2 D D R - A S - 8 B R D R - F D - A S - 8 B R D R - A S - 8 D D R - B G - 1 D D R - B G - 1 D D R - B G - 5 D D R - B G - 5 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 2 2 J + 0 . 9 6 J + 3 U 0 . 7 9 J + 0 . 3 3 J + 2 8 . 9 - - 0 . 1 J - - 0. 2 J 3 U 0. 8 J 3 U 0 . 1 3 J 20.1 -- 0 . 1 1 J - - 3. 8 J + 1 9 . 6 J + 1 0 U 3 J 4 . 5 J 3 . 8 J + - - 1 0 U - - 5. 4 J 1 9 . 4 6 . 4 J 2 . 6 J 1 2 . 9 1 0 U - - 1 0 U - - 0. 2 0 . 6 0 . 2 0 . 2 0 . 2 5 . 0 1 - - 0 . 9 7 - - 14 0 . 8 1 7 . 9 - 8 0 . 7 - 8 0 . 7 - 1 7 . 8 1 6 1 - - 1 9 4 . 3 - - 5. 8 6 7. 1 7 . 1 6. 2 8.5 -- 6 . 6 - - 48 6 8 1 8 4 5 0 . 5 4 5 0 . 5 2 5 4 . 1 - - - - - - - - -- - - - - - - - - 4 0 3 . 2 - - 2 8 7 . 1 - - 29 . 1 2 0 . 1 2 3 2 3 2 3 . 9 1 6 . 7 - - 1 7 . 1 - - 4 8 . 3 2 . 7 2 . 7 1 . 2 3 . 4 5 - - 0 . 3 5 - - Pa g e 4 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : BG - 5 S G W A - 1 0 D G W A - 1 1 D G W A - 1 1 S G W A - 1 2 D G W A - 1 2 S G W A - 1 4 D G W A - 1 4 S G W A - 1 4 S 3/ 2 8 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 3 / 2 8 / 20 1 6 3 / 2 8 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN N N N N N N N DR - B G - 5 S D R - G W A - 1 0 D D R - G W A - 1 1 D D R - G W A - 1 1 S D R - G W A - 1 2 D D R - G W A - 1 2 S D R - G W A - 1 4 D D R - G W A - 1 4 S D R - G W A - 1 4 S Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U - - 5 0 0 0 U 73 6 0 0 6 8 0 0 0 1 7 6 0 0 0 2 5 1 0 0 2 0 1 0 0 0 9 7 0 0 1 5 7 0 0 0 - - 4 5 4 0 0 73 6 0 0 6 8 0 0 0 1 7 6 0 0 0 2 5 1 0 0 2 0 1 0 0 0 9 7 0 0 1 5 7 0 0 0 - - 4 5 4 0 0 65 J 1 0 0 U 1 0 0 U 5 5 . 6 J 1 0 0 U 1 0 0 1 0 0 U - - 8 5 J 11 8 9 2 . 4 J 1 0 0 U 5 9 . 4 J 1 0 0 U 8 1 2 1 0 0 U 1 0 0 U - - 0. 5 U 0 . 1 4 J 5 U 0 . 5 U 5 U 0 . 5 U 5 U - - 0 . 5 U 0. 5 U 0 . 1 1 J 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U - - 0. 1 U 0 . 1 3 1 U 0 . 0 4 5 J 2 . 2 0 . 1 2 1 U - - 0 . 1 3 0. 1 U 0 . 1 7 1 U 0 . 0 5 6 J 2 . 3 0 . 3 8 0 . 4 1 J 0 . 0 7 7 J - - 11 3 1 . 2 5 9 . 2 1 8 . 4 2 3 3 2 7 9 . 5 - - 3 6 . 5 18 . 7 3 3 . 8 6 1 . 6 2 0 . 7 2 4 3 5 . 9 8 0 . 4 3 1 . 5 - - 0. 1 U 0 . 1 0 . 1 4 J 0 . 1 4 0 . 2 7 J 0 . 1 U 1 U - - 0 . 0 2 8 J + 0. 1 U 0 . 1 5 0 . 2 5 J 0 . 1 J + 0 . 1 2 J 0 . 0 6 8 J 0 . 2 1 J 0 . 0 1 2 J + - - 50 U 2 0 6 5 0 U 1 0 7 5 0 U 5 0 U 2 3 8 - - 5 0 U 50 U 2 3 7 3 0 . 5 J 1 2 6 5 0 U 5 0 U 2 3 9 5 0 U - - 0. 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U - - 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U - - 16 8 0 0 2 2 9 0 0 5 0 5 0 0 5 4 7 0 5 0 9 0 0 6 7 6 0 7 8 2 0 0 8 9 7 0 - - -- 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U - - - - 1 0 0 0 U 6 4 0 J - - 67 0 0 9 3 0 0 1 1 2 0 0 1 0 4 0 0 4 0 0 0 3 3 0 0 1 2 1 0 0 - - 5 5 0 0 0. 6 4 1 . 8 J + 5 U 1 4 . 1 5 U 0 . 6 1 5 U - - 0 . 5 6 J + 0. 8 1 J + 1 . 9 1 . 8 J + 5 . 8 J + 5 U 2 . 2 J + 5 U 0 . 4 J + - - 0. 4 5 0 . 5 7 0. 0 3 U 0. 1 6 0. 0 3 U 0.27 0.03 U 0.076 -- 0. 0 2 7 J 0 . 5 3 1 . 3 2 0 . 3 1 J 0 . 1 7 0 . 1 J - - 1 . 8 0. 0 3 7 J 0 . 5 7 1. 3 1 . 5 0. 2 5 J 0 . 4 2 0 . 1 J 0 . 5 7 - - 0. 2 2 J 0 . 4 6 J + 5 U 2 J + 5 U 1 . 8 5 U - - 1 . 7 J + 0. 1 7 J 0 . 5 9 J + 5 U 0 . 6 6 5 U 1 . 6 5 U 0 . 2 9 J - - 37 J 2 1 9 2 3 4 0 9 3 . 5 5 1 6 9 1 9 0 - - 1 0 4 83 . 2 2 8 3 24 1 0 80 . 5 J + 8 2 . 3 1440 188 50 U - - 0. 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U - - 0 . 1 4 0. 1 U 0 . 1 1 1 U 0 . 1 U 1 U 0 . 5 8 1 U 0 . 1 U - - 11 4 0 0 1 2 5 0 0 1 7 1 0 0 2 8 0 0 1 7 8 0 0 4 1 6 0 8 1 5 0 4 7 8 0 - - 5 U 3 5 7 8 5 4 3 7 1 2 8 1 7 3 3 1 - - 1 5 3 0 5 U 35 0 8 9 7 3 1 0 31 . 1 2 3 . 7 334 535 -- 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U - - 0 . 2 U 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U - - 1. 5 J + 1 0 U 1 0 U 1 0 U 3 . 1 J + 1 . 5 J + 1 1 4 1 0 U - - 0. 5 U 0 . 1 4 J 5 U 0 . 2 J 5 U 0 . 5 U 1 3 . 5 - - 0 . 2 1 J 0. 5 U 0 . 1 9 J 5 U 0 . 1 7 J 5 U 0 . 5 U 1 1 . 4 0 . 5 U - - 0. 6 2 5 . 8 5 U 1 3 . 7 5 U 2 . 6 5 U - - 4 . 8 0. 6 6 6 . 1 5 U 8 5 U 2 . 7 5 U 2 . 7 - - 46 0 2 4 0 2 0 U 3 1 0 1 0 0 1 5 0 0 2 1 1 2 0 - - 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U - - 0. 5 U 0 . 3 7 J 5 U 0 . 5 U 5 U 0 . 5 U 5 U - - 0 . 5 U 0. 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 2 5 U 0 . 5 U - - 17 0 0 0 1 5 6 0 0 1 6 6 0 0 9 5 3 0 9 6 9 0 5 7 2 0 2 1 9 0 0 9 5 3 0 - - 20 0 3 3 3 4 7 5 1 6 8 5 6 0 9 1 1 9 5 0 - - 1 0 3 20 6 3 6 0 4 9 5 1 7 5 6 0 1 9 3 1 9 7 0 8 4 . 2 - - 33 6 0 0 6 1 2 0 0 4 0 5 0 0 4 7 0 0 J + 1 9 6 0 0 2 4 9 0 0 1 0 6 0 0 0 - - 2 1 9 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U - - 0. 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U - - 0 . 1 U 0. 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U - - 16 5 0 0 0 1 8 5 0 0 0 2 5 7 0 0 0 7 0 0 0 0 2 6 0 0 0 0 1 0 9 0 0 0 3 5 4 0 0 0 - - 1 0 1 0 0 0 10 0 0 U - - - - - - 1 0 0 0 U 1 3 0 0 - - - - - - 25 0 0 U 2 8 0 0 4 6 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U - - 0. 5 U 0 . 0 6 5 J 5 U 0 . 5 U 0 . 4 J 0 . 0 7 1 J 5 U 0 . 5 U - - Pa g e 5 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) BG - 5 S G W A - 1 0 D G W A - 1 1 D G W A - 1 1 S G W A - 1 2 D G W A - 1 2 S G W A - 1 4 D G W A - 1 4 S G W A - 1 4 S 3/ 2 8 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 3 / 2 8 / 20 1 6 3 / 2 8 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN N N N N N N N DR - B G - 5 S D R - G W A - 1 0 D D R - G W A - 1 1 D D R - G W A - 1 1 S D R - G W A - 1 2 D D R - G W A - 1 2 S D R - G W A - 1 4 D D R - G W A - 1 4 S D R - G W A - 1 4 S Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 1 3 J 0 . 1 6 J + 3 U 0 . 2 9 J + 4 . 9 0 . 2 3 J 3 U - - 0 . 6 7 J + 0. 2 J 0 . 2 J + 3 U 0 . 2 3 J 3. 5 2 . 7 3 U 0 . 2 3 J + - - 10 U 3 8 . 4 3 . 6 J + 4 7 . 5 J + 3 . 4 J + 5 . 3 J + 1 0 U - - 6 . 5 J + 2. 5 J 2 3 . 1 J + 1 0 U 4 0 . 4 1 0 U 3 . 5 J 1 0 U 5 . 1 J - - 1. 3 6 1 . 7 0 . 3 2 . 8 0 . 5 3 . 1 3 - - - - - - 16 7 . 9 1 4 4 . 6 - 4 0 . 6 2 4 1 . 5 - 2 0 . 6 2 1 3 . 1 - - - - - - 6. 4 5 . 6 6. 8 5. 2 7. 4 5.7 -- - - - - -- 2 9 6 . 7 4 8 7 . 1 1 1 0 . 3 - - - - - - - - - - 22 9 . 3 - - - - - - 3 6 0 . 5 1 0 3 - - - - - - 15 . 3 2 6 . 7 2 0 . 1 2 1 . 9 1 9 . 6 1 9 . 5 - - - - - - 2. 0 7 5 . 1 1 . 8 3 . 5 0 . 8 2 4 2 . 2 - - - - - - Pa g e 6 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : GW A - 1 5 D G W A - 1 D G W A - 1 S G W A - 4 D G W A - 4 S G W A - 5 B R G W A - 6 D G W A - 6 S G W A - 7 D 4/ 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 20 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N N DR - G W A - 1 5 D D R - G W A - 1 D D R - G W A - 1 S D R - G W A - 4 D D R - G W A - 4 S D R - G W A - 5 B R D R - G W A - 6 D D R - G W A - 6 S D R - G W A - 7 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 2 1 9 0 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 11 8 0 0 0 5 0 0 0 U 5 5 8 0 0 4 1 8 0 0 5 0 4 0 0 1 6 5 0 0 0 1 2 1 0 0 0 2 4 8 0 0 0 5 1 2 0 0 11 8 0 0 0 3 7 8 0 0 0 5 5 8 0 0 4 1 8 0 0 5 0 4 0 0 1 6 5 0 0 0 1 2 1 0 0 0 2 4 8 0 0 0 5 1 2 0 0 10 0 U 1 0 2 0 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 10 0 U 1 3 3 0 1 0 0 U 1 0 0 U 5 9 . 1 J 1 0 0 U 9 3 . 8 J 1 0 0 U 1 0 0 U 5 U 1 . 2 J 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 5 U 1. 4 J 0. 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 1 U 2 . 7 0 . 0 9 8 J 0 . 0 8 1 J 0 . 1 9 1 U 0 . 5 6 1 U 0 . 0 9 J 1 U 2 . 6 0 . 0 9 2 J 0 . 0 5 8 J 0 . 2 3 1 U 0 . 7 3 1 U 0 . 1 1 41 . 6 6 4 . 8 4 . 9 J 1 6 . 7 4 9 . 5 5 9 . 9 4 9 . 4 1 2 5 1 7 . 7 43 . 5 6 9 5 . 3 1 6 . 6 5 2 . 5 6 0 . 5 6 1 . 9 1 2 6 1 8 . 6 0. 1 2 J 1 U 0 . 0 3 7 J + 0 . 0 4 2 J 0 . 1 U 0 . 1 6 J 0 . 0 1 4 J 0 . 1 4 J 0 . 0 5 6 J 0. 2 1 J 1 U 0 . 0 2 9 J + 0 . 1 U 0 . 0 1 3 J + 1 U 0 . 0 6 2 J + 0 . 1 8 J + 0 . 0 6 2 J + 46 . 2 J 5 0 U 5 0 U 2 4 0 1 7 4 1 8 3 4 6 7 6 3 1 5 0 U 50 . 2 9 7 . 4 5 0 U 2 6 8 1 8 6 2 0 0 5 6 5 6 6 1 5 0 U 0. 8 U 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0. 8 U 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 72 0 0 0 1 4 0 0 0 2 9 6 0 1 5 5 0 0 2 1 2 0 0 1 8 4 0 0 0 4 0 1 0 0 6 9 6 0 0 2 5 2 0 0 10 0 0 U 4 6 0 0 7 3 0 J 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 3 0 0 3 5 0 0 5 7 0 J 10 5 0 0 3 6 0 0 2 0 0 0 1 2 1 0 0 7 9 0 0 1 7 6 0 0 1 8 1 0 0 1 4 9 0 0 3 0 0 0 1. 4 J 5 U 0 . 3 9 J + 0 . 3 9 J + 2 J + 5 U 0 . 5 1 0 . 9 3 J 0 . 1 9 J 1. 9 J + 5 U 0 . 3 6 J + 0 . 4 1 J + 1 . 5 5 U 0 . 5 1 J + 5 U 0 . 2 2 J + 1. 1 0. 0 4 3 0. 0 7 7 0. 0 2 2 J 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 1 U 1 U 0 . 3 9 0 . 1 5 J + 2 . 4 1 U 0 . 2 1 U 2 . 8 1 U 1 U 0 . 3 1 0 . 0 8 2 J + 2. 4 1 U 0 . 2 6 1 U 3 5 U 2 . 1 J 1 . 3 J + 0 . 6 8 J + 0 . 7 7 J + 5 U 0 . 5 4 5 U 0 . 2 7 J 5 U 5 U 0 . 1 9 J 0 . 5 U 0 . 2 1 J + 5 U 0 . 1 9 J + 5 U 0 . 2 9 J + 50 U 5 0 U 5 0 U 5 0 U 4 1 . 3 J 1 7 1 6 9 0 0 9 7 7 0 1 7 0 0 50 U 5 0 U 4 4 . 4 J 5 0 U 7 9 . 2 2 0 1 10100 11500 1880 1 U 1 U 0 . 1 U 0 . 4 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 15 0 0 0 1 0 0 U 3 7 6 0 6 3 3 0 5 5 6 0 2 4 5 0 0 1 1 0 0 0 9 8 7 0 1 3 0 0 0 24 5 U 4 7 . 1 3 2 . 6 4 5 6 6 9 2 1 0 7 0 2 3 4 0 8 6 3 20 . 5 2 . 8 J 4 3 . 4 1 8 47 5 7 3 4 1 4 9 0 2 7 2 0 9 0 6 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 10 U 1 6 . 4 1 0 U 6 8 . 1 1 0 U 1 9 . 6 6 9 6 0 6 5 9 0 1 0 U 5 U 1 2 . 1 0 . 5 U 0 . 5 U 1 4 . 9 5 U 3 . 5 4 . 7 J 0 . 5 U 5 U 1 4 . 3 0 . 5 U 0 . 5 U 1 5 . 7 5 U 4 4 . 1 J 0 . 5 U 5 U 5 U 1 . 6 0 . 7 6 4 . 3 5 U 1 . 6 5 U 1 . 3 5 U 5 U 1 . 6 0 . 7 7 2 . 5 5 U 1 . 8 5 U 1 . 3 36 2 0 U 3 0 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 43 1 0 J 2 0 9 0 0 0 5 0 0 0 U 5 0 0 0 U 4 1 3 0 J 5 0 0 0 U 5 0 0 0 U 8 0 3 0 5 0 0 0 U 5 U 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 5 U 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 17 0 0 0 6 3 0 0 0 1 6 5 0 0 1 8 1 0 0 1 4 1 0 0 1 9 8 0 0 2 7 0 0 0 2 3 2 0 0 2 2 3 0 0 14 5 0 4 5 5 5 2 . 7 2 3 1 3 0 4 1 8 7 0 1 7 1 6 0 8 2 7 0 16 0 0 5 2 1 5 4 2 3 4 3 2 2 1 9 0 0 1 8 3 5 3 6 2 8 2 14 8 0 0 0 2 0 0 0 0 3 2 0 0 4 2 5 0 0 4 7 0 0 0 419000 61000 10400 106000 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U J 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 35 7 0 0 0 52 2 0 0 0 81 0 0 0 1 3 2 0 0 0 1 5 5 0 0 0 796000 261000 304000 256000 -- - - - - - - - - - - - - - - - - 25 0 0 U 5 0 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 7 6 0 0 2 0 6 0 0 2 5 0 0 U 5 U 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 5 U - - Pa g e 7 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) GW A - 1 5 D G W A - 1 D G W A - 1 S G W A - 4 D G W A - 4 S G W A - 5 B R G W A - 6 D G W A - 6 S G W A - 7 D 4/ 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 20 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N N DR - G W A - 1 5 D D R - G W A - 1 D D R - G W A - 1 S D R - G W A - 4 D D R - G W A - 4 S D R - G W A - 5 B R D R - G W A - 6 D D R - G W A - 6 S D R - G W A - 7 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 3 U 3 . 6 0 . 3 6 J + 0 . 2 J + 0 . 1 2 J + 0 . 7 1 J + 0 . 2 4 J 3 U 0 . 3 U 3 U 3. 5 0. 1 7 J 0 . 1 8 J + 0 . 2 5 J + 3 U 0.32 3 U 0 . 3 U 3. 2 J 1 0 U 8 . 4 J 1 0 U 1 0 U 1 0 U 4 . 1 J + 1 0 U 4 . 8 J + 10 U 1 0 U 4 . 3 J 1 0 U 1 0 U 1 0 U 4 . 3 J 2 . 5 J 4 . 6 J -- 0 . 4 0 . 7 0 . 4 0 . 2 0 . 2 0 . 2 0 . 2 0 . 3 -- - 1 2 4 . 2 1 7 9 . 4 1 7 . 8 9 9 . 2 - 4 0 . 4 - 6 8 . 1 - 1 1 2 . 9 2 5 . 8 -- 12 . 2 5 . 6 6 . 2 6. 5 7 . 2 6 . 5 6 . 9 6.2 -- 1 7 6 0 1 1 4 . 1 2 2 2 . 9 2 3 6 . 9 1 0 5 4 4 4 3 . 8 5 6 7 3 4 8 -- - - - - - - - - - - - - - - - - -- 1 6 1 8 . 4 1 9 . 4 2 0 . 5 1 9 . 9 2 2 . 8 1 9 . 4 1 9 . 8 -- 5 . 2 6 . 4 1 . 1 3 . 2 3 . 9 4 . 3 4 . 1 6 . 5 Pa g e 8 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : GW A - 7 S G W A - 8 D G W A - 8 S G W A - 9 D G W A - 9 S M W - 1 0 D M W - 1 1 M W - 1 1 D M W - 1 2 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 3 / 2 8 / 2 0 1 6 3 / 2 8 / 20 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N N DR - G W A - 7 S D R - G W A - 8 D D R - G W A - 8 S D R - G W A - 9 D D R - G W A - 9 S D R - M W - 1 0 D D R - M W - 1 1 D R - M W - 1 1 D D R - M W - 1 2 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U - - 5 0 0 0 U 5 0 0 0 U 13 0 0 J 1 4 2 0 0 0 7 5 3 0 0 2 4 7 0 0 1 2 3 0 0 9 3 6 0 0 - - 1 2 0 0 0 0 8 6 0 0 13 0 0 J 1 4 2 0 0 0 7 5 3 0 0 2 4 7 0 0 1 2 3 0 0 9 3 6 0 0 - - 1 2 0 0 0 0 8 6 0 0 50 9 1 0 0 U 8 7 . 1 J 1 0 0 U 1 0 0 U 1 0 0 U 2 5 6 1 0 0 U 1 0 0 U 55 9 1 0 0 U 4 8 9 1 0 0 U 9 6 . 9 J 1 0 0 U 4 9 4 6 1 . 7 J 1 0 0 U 0. 5 U 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 0. 5 U 5 U 0 . 1 2 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 0. 0 9 9 J 2 0 . 2 4 0 . 5 7 0 . 1 U 0 . 0 6 5 J 0 . 0 7 J 1 U 0 . 0 6 7 J 0. 1 2 2 . 2 0 . 3 3 0 . 5 6 0 . 1 U 0 . 0 7 4 J 0 . 2 4 1 U 0 . 1 4 37 . 5 2 8 . 4 2 5 1 2 8 . 1 4 2 . 4 6 6 . 9 5 5 . 8 5 . 6 38 . 3 3 0 . 4 2 8 . 4 1 3 8 . 7 4 4 . 1 8 0 . 2 5 3 . 4 5 . 8 8. 2 0 . 1 7 J 0 . 0 5 9 J + 0 . 0 7 J 0 . 0 8 8 J 0 . 0 7 9 J 0 . 4 9 0 . 2 7 J 0 . 2 4 7. 7 0. 3 3 J 0 . 0 9 2 J + 0 . 0 3 9 J 0 . 0 9 8 J 0 . 1 U 0 . 4 4 1 U 0 . 1 6 50 U 5 0 U 5 0 U 5 0 U 5 0 U 4 2 3 2 1 6 9 1 . 7 5 0 U 50 U 5 0 U 5 0 U 5 0 U 5 0 U 4 6 1 2 3 4 1 0 2 5 0 U 0. 5 3 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 5 7 J 0. 5 1 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 0 5 1 J 37 4 0 0 1 2 5 0 0 0 2 7 2 0 0 6 7 9 0 1 0 5 0 3 3 8 0 0 3 4 5 0 6 5 1 0 0 1 2 1 0 84 0 J 8 9 0 J 1 1 0 0 - - - - 1 0 0 0 U - - 1 0 0 0 U 1 0 0 0 U 22 0 0 3 9 0 0 5 7 0 0 3 1 0 0 4 3 0 0 2 2 3 0 0 - - 2 4 9 0 0 4 9 0 0 0. 7 5 5 U 0 . 6 9 0 . 1 8 J 0 . 3 8 J 0 . 3 2 J + 1 . 1 J + 1 . 1 J + 0 . 2 3 J + 0. 9 1 J + 5 U 1 . 1 J + 0 . 2 7 J + 0 . 3 3 J + 0 . 3 4 J + 5 . 4 J + 2 . 2 J 0 . 2 7 J + 0. 4 4 J - 0. 0 3 U 0. 2 6 0. 0 3 U 0. 0 7 7 0.03 U - - 1.2 0.051 20 . 6 0 . 1 1 J 0 . 2 4 0 . 8 6 3 . 2 0 . 5 9 3 2 . 4 1 U 1 0 . 2 18 . 6 0. 1 J 0 . 2 4 0 . 8 4 3. 3 0.52 34.1 1 U 10.8 4. 3 5 U 1 . 3 1 . 5 3 . 3 0 . 7 5 J + 4 . 5 1 . 7 J + 7 . 3 1. 1 J + 5 U 1 . 1 0 . 5 U 0 . 8 9 0 . 1 6 J 3 . 7 1 . 3 J + 3 . 6 50 U 9 6 . 6 3 0 . 2 J 1 9 0 0 5 0 U 1 2 6 2 1 1 5 0 U 1 0 5 13 9 1 4 3 50 2 2 1 2 0 11 1 1 3 0 864 41.2 J 361 0. 1 1 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 2 8 0 . 3 1 1 U 0 . 3 8 0. 1 5 1 U 0 . 2 4 0 . 1 U 0 . 0 9 J 0 . 1 U 1 . 6 1 U 1 . 5 23 2 0 0 3 1 3 0 0 2 0 0 0 0 1 9 8 0 5 3 7 1 0 6 0 0 1 9 5 0 7 9 9 0 2 8 4 0 97 0 1 0 8 0 8 2 . 3 4 8 0 7 1 9 1 5 8 8 8 1 4 4 2 5 8 86 2 1 1 2 0 5 5 . 7 5 2 0 7 6 . 3 1 0 0 0 9 6 6 1 5 2 2 7 6 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 10 U 1 0 U 1 0 U 1 . 7 J + 1 . 5 J + 1 0 U - - 1 0 U 1 0 U 0. 5 U 7 0 . 1 4 J 0 . 1 2 J 0 . 5 U 0 . 1 2 J 0 . 5 U 7 . 3 0 . 5 U 0. 5 U 6 . 6 0 . 1 2 J 0 . 1 2 J 0 . 5 U 0 . 1 1 J 0 . 3 6 J 5 . 1 0 . 5 U 67 . 5 5 U 5 . 5 2 . 6 3 . 1 1 . 8 8 . 1 5 U 7 . 9 63 . 2 5 U 5 . 1 2 2 . 2 1 . 8 J + 8 . 4 J + 5 U 8 . 2 12 0 0 2 0 U 2 6 2 0 U 5 0 2 0 U - - 2 0 0 2 0 U 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 3 2 5 0 J 5 0 0 0 U 5 0 0 0 U 3 9 1 0 J 5 0 0 0 U 1. 3 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 5 U 1. 4 5 U 0 . 4 7 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 9 9 5 U 0 . 5 U 15 4 0 0 5 3 8 0 0 5 5 1 0 0 4 8 9 0 J 7 1 5 0 1 7 3 0 0 1 8 6 0 0 1 4 2 0 0 5 1 4 0 98 7 6 6 9 2 7 5 2 7 2 4 2 7 1 5 7 . 9 4 6 9 4 . 7 J 95 1 7 1 0 3 0 6 2 8 . 1 2 3 . 9 2 9 2 6 2 . 7 5 1 9 4 . 7 J 21 0 0 0 0 38 8 0 0 0 17 6 0 0 0 7 1 0 0 4 1 0 0 4 1 5 0 0 - - 7 6 8 0 0 8 4 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U - - 1 0 0 U 1 0 0 U 0. 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 0. 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 1 8 J 1 U 0 . 1 U 36 1 0 0 0 72 1 0 0 0 36 6 0 0 0 8 1 0 0 0 7 0 0 0 0 1 9 5 0 0 0 - - 2 8 3 0 0 0 4 1 0 0 0 -- - - - - 1 0 0 0 U 1 0 0 0 U - - - - - - - - 25 0 0 U 2 5 0 0 U 9 4 0 0 2 5 0 0 U 2 8 0 0 2 5 0 0 U - - 2 7 0 0 2 5 0 0 U -- - - - - 0 . 5 U 0 . 5 U - - - - - - - - Pa g e 9 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) GW A - 7 S G W A - 8 D G W A - 8 S G W A - 9 D G W A - 9 S M W - 1 0 D M W - 1 1 M W - 1 1 D M W - 1 2 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 3 / 2 8 / 2 0 1 6 3 / 2 8 / 20 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N N DR - G W A - 7 S D R - G W A - 8 D D R - G W A - 8 S D R - G W A - 9 D D R - G W A - 9 S D R - M W - 1 0 D D R - M W - 1 1 D R - M W - 1 1 D D R - M W - 1 2 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 0 9 7 J 1 J 0 . 6 4 0 . 3 U 0 . 3 U 0 . 1 5 J 0 . 7 9 J + 3 U 0 . 0 9 2 J + 0. 2 J 3 U 1. 2 0. 3 U 0 . 1 J 0 . 1 9 J + 5.3 0.77 J 0.11 J 44 3 3 . 2 J + 5 . 7 J + 6 . 1 J + 3 7 3 . 5 J + 1 3 J + 2 . 6 J 4 9 38 9 2 . 9 J 6 . 8 J 5 . 2 J 3 2 . 2 2 . 7 J + 1 2 . 1 J + 7 . 2 J 3 9 . 2 2 - - - - 0 . 4 3 . 8 4 0 . 4 6 . 2 2 . 4 1 . 2 37 0 . 1 - - - - 3 7 1 4 9 . 8 1 0 1 . 5 3 5 2 . 6 6 0 . 7 2 8 7 . 5 4. 7 -- - - 6 5 . 7 6 . 2 4 . 8 7.7 5.3 52 5 . 6 - - - - - - - - 3 3 8 . 6 1 5 1 . 4 4 5 8 . 7 6 1 . 6 -- - - - - 7 6 . 1 4 7 . 2 - - - - - - - - 21 . 3 - - - - 1 5 . 2 1 6 2 1 . 8 2 0 . 7 1 9 . 8 2 0 . 1 8. 3 - - - - 4 . 1 9 6 . 1 4 0 . 0 1 7 . 9 7 1 . 2 8 . 5 Pa g e 1 0 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : MW - 1 2 D M W - 2 2 B R M W - 2 3 B R M W - 2 3 B R M W - 2 3 D M W - 3 0 8 B R M W - 3 1 0 B R M W - 3 1 1 B R M W - 3 1 4 B R 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 3 / 2 9 / 2 0 1 6 3 / 2 9 / 2 0 1 6 3 / 2 9 / 20 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN N F D N N N N N DR - M W - 1 2 D D R - M W - 2 2 B R D R - M W - 2 3 B R D R- M W - 2 3 B R - F D - M R M - DR - M W - 2 3 D D R - M W - 3 0 8 B R D R - M W - 3 1 0 B R D R - M W - 3 1 1 B R D R - M W - 3 1 4 B R Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 75 0 0 0 1 1 4 0 0 0 2 1 7 0 0 0 2 1 9 0 0 0 2 3 1 0 0 1 1 4 0 0 0 1 5 9 0 0 0 1 9 2 0 0 0 8 4 8 0 0 75 0 0 0 1 1 4 0 0 0 2 1 7 0 0 0 2 1 9 0 0 0 2 3 1 0 0 1 1 4 0 0 0 1 5 9 0 0 0 1 9 2 0 0 0 8 4 8 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 6 8 J 1 0 0 U 1 0 0 U 1 0 0 U 5 0 J 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 5 7 9 1 0 0 U 1 0 0 U 2 1 0 8 5 . 6 J 0. 5 U 0 . 4 J 5 U 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 0. 5 U 0 . 4 6 J 5 U 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 1 8 J 0. 1 5 0 . 2 0 . 5 4 J 0 . 4 4 J 0 . 0 5 9 J 0 . 4 7 J 0 . 7 1 U 0 . 6 2 0. 1 5 0 . 2 6 0 . 4 7 J + 0 . 4 8 J + 0 . 2 5 J + 0 . 4 8 J 0 . 1 U 0 . 5 2 J 1 . 6 13 . 9 2 7 . 8 1 1 0 1 1 0 1 7 5 4 . 8 7 9 . 8 1 0 1 1 9 . 8 14 . 5 2 9 . 3 1 1 0 1 1 3 2 1 . 7 5 6 . 7 7 6 . 3 1 3 4 2 5 . 7 0. 0 1 5 J 0 . 0 1 1 J + 1 U 1 U 0 . 0 3 J 0 . 3 8 J 0 . 0 3 1 J 1 U 0 . 0 1 4 J 0. 1 U 0 . 1 U 1 U 1 U 0 . 0 7 4 J + 0 . 3 2 J 0 . 1 U 0 . 1 4 J 0 . 0 1 2 J + 50 U 4 9 4 5 0 U 5 0 U 5 0 U 3 7 4 5 0 U 6 7 7 4 1 4 50 U 5 2 6 5 0 U 2 5 . 4 J 5 0 U 3 9 1 5 0 U 735 424 0. 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 0 . 0 8 4 J + 0 . 8 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 13 8 0 0 1 0 0 U 5 7 1 0 0 5 7 4 0 0 1 1 9 0 0 5 4 5 0 0 4 2 7 0 0 6 0 1 0 0 4 8 2 0 0 10 0 0 U 2 4 0 0 - - - - - - 1 0 0 0 U 1 2 3 0 0 9 9 0 J 7 8 0 J 98 0 0 1 8 8 0 0 4 2 0 0 4 2 0 0 2 7 0 0 1 3 7 0 0 1 5 2 0 0 2 3 7 0 0 2 7 9 0 0 2. 1 J + 0 . 3 1 J + 5 U 5 U 0 . 4 2 J + 5 U 0 . 1 7 J + 0 . 9 6 J + 0 . 1 3 J + 3. 2 0 . 4 J + 5 U 1 . 1 J + 1 . 3 J + 5 U 0 . 2 3 J + 4 . 9 J 1 . 3 0. 4 7 0. 0 3 U 0 . 0 3 U 0 . 0 3 U 0. 0 9 4 0.03 U 0 . 0 3 U 0 . 0 1 1 J 0 . 0 6 8 2. 4 0 . 0 7 6 J 0 . 2 J 1 U 0 . 0 4 9 J 1 5 . 4 0 . 0 5 2 J 0 . 1 3 J + 0 . 1 2. 3 0. 0 6 J 1 U 1 U 0 . 2 8 J + 16 0.1 U 0 . 3 1 J + 0 . 1 4 0. 6 1 J + 0 . 1 9 J + 2 . 4 J 2 . 6 J 1 . 1 J + 5 U 0 . 1 3 J + 5 U 0 . 1 4 J 0. 4 1 J + 0 . 1 4 J 5 U 5 U 0 . 9 3 J + 5 . 5 0 . 1 9 J 2 . 4 J 0 . 2 2 J 15 3 0 1 4 2 8 9 0 8 5 0 4 5 J 7 6 6 0 5 0 U 3 3 7 1 0 2 14 3 0 16 8 11 3 0 1 1 5 0 8 5 0 7 9 3 0 25.7 J 726 165 0. 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 0. 1 U 0 . 1 U 1 U 1 U 0 . 3 5 J + 1 U 0 . 1 U 1 U 0 . 1 U 83 5 0 1 0 0 U 2 0 1 0 0 2 0 3 0 0 3 9 2 0 9 7 6 0 1 1 4 0 0 1 2 2 0 0 1 2 7 0 0 66 3 2 3 2 2 5 2 4 5 U 7 2 9 0 1 4 3 4 2 3 1 2 2 68 5 2 4 2 25 2 6 1 0 . 2 7460 101 611 157 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 10 U 2 0 2 4 1 . 3 2 5 . 5 1 . 6 J + 2 4 . 9 J - 1 0 U 1 0 U 1 2 3 0 0. 1 5 J 1 2 . 2 1 . 3 J 1 . 2 J 0 . 5 U 5 U 0 . 5 5 1 . 2 J 0 . 6 9 0. 4 7 J 1 0 . 9 1 . 3 J 1 . 3 J 0 . 1 4 J + 5 U 0 . 5 U 1 . 5 J 2 2. 7 J + 2 . 2 J + 5 U 5 U 0 . 8 8 1 3 . 4 0 . 5 U 5 U 0 . 6 8 2. 7 1 . 3 5 U 5 U 0 . 9 1 2 0 . 5 U 5 U 0 . 8 6 20 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 10 8 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 3 8 8 0 0 6 1 9 0 0. 5 U 0 . 5 U 5 U 5 U 0 . 5 U 5 U 0 . 5 U 5 U 0 . 5 U 0. 5 U 0 . 5 U 5 U 5 U 0 . 3 8 J 5 U 0 . 5 U 5 U 0 . 5 U 16 4 0 0 5 0 0 0 U 1 3 9 0 0 1 3 8 0 0 2 8 8 0 J 4 5 2 0 J 1 2 4 0 0 2 5 0 0 0 1 3 4 0 0 52 . 8 4 7 9 1 7 0 0 1 7 0 0 6 5 1 7 4 0 2 8 2 7 9 5 1 5 1 56 . 5 5 0 2 1 7 1 0 1 7 5 0 7 0 . 9 1 7 9 0 2 9 6 1 0 5 0 1 7 4 29 0 0 0 4 2 1 0 0 1 1 3 0 0 1 1 2 0 0 2 0 3 0 0 811000 5800 46900 80000 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 4 0 0. 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 0. 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 U 0 . 1 U 1 U 0 . 1 U 14 6 0 0 0 2 2 6 0 0 0 2 4 5 0 0 0 2 5 0 0 0 0 8 2 0 0 0 1400000 192000 287000 247000 -- - - 1 0 0 0 U 1 0 0 0 U 1 1 0 0 - - - - - - - - 50 0 0 U 2 5 0 0 U 2 6 0 0 U 2 5 0 0 U 2 5 0 0 U 7 4 0 0 8 6 0 0 3 2 1 0 0 0 2 5 0 0 U -- - - 5 U 0 . 6 1 J 0 . 5 U - - 1 - - 1 Pa g e 1 1 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) MW - 1 2 D M W - 2 2 B R M W - 2 3 B R M W - 2 3 B R M W - 2 3 D M W - 3 0 8 B R M W - 3 1 0 B R M W - 3 1 1 B R M W - 3 1 4 B R 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 3 / 2 9 / 2 0 1 6 3 / 2 9 / 2 0 1 6 3 / 2 9 / 20 1 6 4 / 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN N F D N N N N N DR - M W - 1 2 D D R - M W - 2 2 B R D R - M W - 2 3 B R D R- M W - 2 3 B R - F D - M R M - DR - M W - 2 3 D D R - M W - 3 0 8 B R D R - M W - 3 1 0 B R D R - M W - 3 1 1 B R D R - M W - 3 1 4 B R Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 1 8 J + 0 . 2 1 J + 3 U 3 U 0 . 1 3 J 3 U 0 . 2 1 J 3 U 0 . 1 4 J + 0. 2 J 0 . 1 7 J 3 U 3 U 1. 1 3 U 0 . 0 9 6 J + 1.1 J 0 . 4 9 9. 6 J 1 0 U 3 . 1 J + 2 . 7 J + 3 . 4 J + 4 J + 1 0 U 3 . 6 J + 2 . 6 J + 3. 8 J 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U 2 . 7 J + 1 1 . 2 3 0 . 1 2 - - 2 . 2 1 2 . 2 1 6 . 4 0 . 4 9 0 . 2 0 . 1 0 . 4 60 . 6 - - - 1 1 3 . 8 - 1 1 3 . 8 1 6 2 . 5 - 9 2 . 4 - 8 5 . 5 - 1 0 1 . 5 - 3 1 6. 5 - - 7 . 4 7 . 4 6 6.9 7.9 7.2 9.3 25 9 - - - - 4 4 2 . 1 - - 1 1 1 2 3 4 4 4 9 4 . 9 3 3 1 -- - - 4 4 2 . 1 - - 1 0 8 . 2 - - - - - - - - 20 . 3 - - 1 6 1 6 1 3 . 6 2 2 . 9 2 3 . 8 1 9 . 3 2 5 . 9 5 - - 0 . 0 1 0 . 0 1 2 0 . 0 8 2 . 1 2 3 . 6 4 2 8 . 4 6 . 4 Pa g e 1 2 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T - - u g / l An t i m o n y D - - u g / l An t i m o n y T 1 IM A C u g / l Ar s e n i c D - - u g / l Ar s e n i c T 10 02 L u g / l Ba r i u m D - - u g / l Ba r i u m T 7 0 0 0 2 L u g / l Be r y l l i u m D - - u g / l Be r y l l i u m T 4 IM A C u g / l Bo r o n D - - u g / l Bo r o n T 70 0 02 L u g / l Ca d m i u m D - - u g / l Ca d m i u m T 2 0 2 L u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l Ch r o m i u m D - - u g / l Ch r o m i u m T 10 02 L u g / l Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l Co b a l t D - - u g / l Co b a l t T 1 IM A C u g / l Co p p e r D - - u g / l Co p p e r T 1 0 0 0 0 2 L u g / l Ir o n D - - u g / l Ir o n T 30 0 02 L u g / l Le a d D - - u g / l Le a d T 1 5 0 2 L u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T 50 02 L u g / l Me r c u r y D - - u g / l Me r c u r y T 1 0 2 L u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T - - u g / l Ni c k e l D - - u g / l Ni c k e l T 1 0 0 0 2 L u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 2 0 0 2 L u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T - - u g / l Su l f a t e N 25 0 0 0 0 02 L u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Th a l l i u m T 0 . 2 I M A C u g / l To t a l D i s s o l v e d S o l i d s N 50 0 0 0 0 02 L u g / l To t a l O r g a n i c C a r b o n N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Ur a n i u m , N a t u r a l T - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : MW - 3 1 5 B R M W - 3 1 7 B R M W - 3 1 7 B R M W - 3 1 8 D M W - 9 D O W - 3 0 8 D 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN F D N N N DR - M W - 3 1 5 B R D R - M W - 3 1 7 B R D R - M W - 3 1 7 B R - F D D R - M W - 3 1 8 D D R - M W - 9 D D R - O W - 3 0 8 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 1 9 2 0 0 0 J 1 1 5 0 0 0 J 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 15 8 0 0 0 9 6 8 0 0 1 1 8 0 0 0 5 5 2 0 0 2 7 8 0 0 4 2 2 0 0 15 8 0 0 0 2 8 9 0 0 0 J 2 3 3 0 0 0 J 5 5 2 0 0 2 7 8 0 0 4 2 2 0 0 10 0 U 1 1 8 0 1 1 3 0 1 0 0 U 8 8 . 6 J 1 0 0 U 95 J 1 3 1 0 1 3 6 0 6 0 . 4 J 3 7 6 1 4 0 5 U 1 . 7 J 1 . 8 J 0 . 1 3 J 0 . 5 U 0 . 5 U 5 U 2. 3 J 1 . 7 J 0. 5 U 0 . 5 U 0 . 5 U 1 U 0 . 7 6 J 0 . 4 7 J 1 . 4 0 . 1 U 2 8 2 1 U 0 . 7 J 0 . 5 8 J 1 . 1 0 . 0 6 2 J 319 73 4 9 . 1 4 8 . 8 3 4 . 3 5 . 7 2 1 . 8 64 . 7 6 5 . 8 5 7 . 8 3 7 . 9 8 . 6 2 3 . 7 0. 2 J 1 U 1 U 0 . 4 6 0 . 0 1 4 J 0 . 0 4 4 J + 1 U 1 U 0 . 2 6 J + 0 . 4 5 0 . 0 8 1 J 0 . 0 1 3 J + 25 . 4 J 5 0 U 5 0 U 1 4 3 0 9 5 6 3 1 9 51 . 8 5 0 U 5 0 U 16 4 0 1 0 3 0 355 0. 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 0 . 0 5 5 J 0 . 0 8 U 0. 8 U 0 . 8 U 0 . 8 U 0 . 0 9 1 0 . 5 1 0 . 0 8 U 57 2 0 0 7 8 6 0 0 7 5 0 0 0 2 2 6 0 0 2 2 5 0 0 2 5 5 0 0 10 0 0 U 1 0 0 0 1 0 0 0 1 0 0 0 U 1 0 0 0 U 9 2 0 J 31 0 0 5 6 0 0 5 1 0 0 8 1 0 0 1 8 6 0 0 9 2 0 0 5 U 9 . 2 9 . 8 0 . 8 1 J + 0 . 3 6 J + 0 . 4 J + 1. 7 J 10 . 4 8. 3 0 . 4 1 J + 2 . 3 J + 0 . 8 9 J + 0. 0 3 U 12 . 6 1 1 . 9 0. 0 3 U 0 . 0 3 U 0 . 1 5 U 0. 1 9 J 0 . 1 4 J 0 . 1 4 J 3 . 1 0 . 2 8 0 . 0 8 1 J 0. 2 2 J 0 . 3 3 J 0 . 2 2 J 1. 9 0. 7 0 . 0 8 5 J 5 U 1 . 8 J + 1 . 5 J + 0 . 4 2 J + 0 . 7 5 0 . 7 2 J + 5 U 2 . 2 J 1 . 8 J 0 . 3 6 J 2 . 8 0 . 3 J 73 . 4 5 0 U 5 0 U 3 0 8 4 6 . 7 J 2 8 7 0 0 13 0 4 6 . 8 J 4 9 . 8 J 2 3 9 40 3 3 1 4 0 0 1 U 1 U 1 U 0 . 0 9 1 J 0 . 1 U 0 . 1 U 1 U 1 U 1 U 0 . 1 6 0 . 6 5 0 . 1 U 96 3 0 4 0 7 6 7 6 1 2 5 0 0 8 9 7 0 1 0 3 0 0 79 4 4 . 1 J 4 . 3 J 1 6 6 4 5 2 4 1 6 52 6 6. 8 1 5 . 2 12 9 4 8 9 4 4 8 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 10 U 1 0 U 1 0 U 1 0 U 1 1 . 2 3 2 . 5 5 U 5 . 8 5 . 6 0 . 5 U 7 . 7 2 . 3 5 U 5 . 6 4 . 8 J 0 . 5 U 8 . 2 2 . 6 5 U 5 U 5 U 1 2 . 2 2 . 9 1 . 2 5 U 5 U 5 U 9 . 7 3 . 6 J + 0 . 8 4 20 U 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 50 0 0 U 3 9 6 0 0 J 3 0 6 0 0 J 5 0 0 0 U 5 0 0 0 U 7 6 5 0 5 U 5 U 5 U 0 . 7 9 0 . 5 U 0 . 5 U 5 U 5 U 5 U 1 0 . 5 U 0 . 5 U 12 9 0 0 3 4 0 0 0 2 9 1 0 0 3 0 4 0 0 2 6 2 0 0 1 6 0 0 0 50 8 4 1 9 4 1 8 6 1 5 1 1 0 4 0 3 48 4 6 0 0 5 0 5 6 9 2 1 1 5 4 4 2 44 9 0 0 1 2 1 0 0 1 0 8 0 0 1 0 3 0 0 0 9 7 6 0 0 1 0 8 0 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 U 1 U 1 U 0 . 1 U 0 . 1 U 0 . 0 2 8 J 1 U 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 24 8 0 0 0 3 0 7 0 0 0 2 6 3 0 0 0 2 5 2 0 0 0 2 0 4 0 0 0 2 4 0 0 0 0 -- - - - - - - - - - - 62 0 0 8 9 0 0 1 4 5 0 0 4 3 0 0 1 2 0 0 0 1 8 5 0 0 5 U - - - - - - - - - - Pa g e 1 3 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 1 : R o u n d 5 A n a l y t i c a l R e s u l t s o f G r o u n d w a t e r M o n i t o r i n g Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Va n a d i u m D - - u g / l Va n a d i u m T 0. 3 IM A C u g / l Zi n c D - - u g / l Zi n c T 1 0 0 0 0 2 L u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6. 5 - 8 . 5 02 L S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Sp e c i f i c C o n d u c t i v i t y N - - u S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h ic h e q u a l t h e l a b o r a t o r y ' s me t h o d r e p o r t i n g l i m i t 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r ds a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a De p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 (a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) MW - 3 1 5 B R M W - 3 1 7 B R M W - 3 1 7 B R M W - 3 1 8 D M W - 9 D O W - 3 0 8 D 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 NN F D N N N DR - M W - 3 1 5 B R D R - M W - 3 1 7 B R D R - M W - 3 1 7 B R - F D D R - M W - 3 1 8 D D R - M W - 9 D D R - O W - 3 0 8 D Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 7 2 J + 6 . 7 6 . 7 0 . 2 J + 0 . 3 4 J + 0 . 3 U J 3 U 6. 6 4 . 9 0. 0 8 7 J 2. 3 0 . 3 2 8. 2 J + 1 0 U 1 0 U 2 0 . 8 J + 1 0 U 2 . 6 J + 9. 3 J 1 0 U 6 . 6 J + 1 4 . 7 J + 1 0 U 2 . 6 J + 0. 5 3 . 0 2 3 . 0 2 1 . 6 1 0 . 1 0 . 1 9 -1 1 . 2 2 9 . 1 2 9 . 1 1 6 5 . 2 1 3 0 . 8 - 7 2 7. 2 10 . 3 1 0 . 3 5 . 2 6. 5 6.3 34 8 . 5 1 4 5 2 1 4 5 2 3 5 3 . 1 3 2 8 4 0 1 . 7 -- - - - - - - - - - - 23 2 3 . 4 2 3 . 4 2 6 . 2 1 8 . 5 2 7 . 2 8. 7 4 . 6 2 4 . 6 2 2 . 9 4 3 0 . 5 6 . 0 2 Pa g e 1 4 o f 1 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 2 : R o u n d 5 A n a l y t i c a l R e s u l t s o f P o r e w a t e r M o n i t o r i n g AB - 1 0 S A B - 1 0 S L A B - 2 5 S A B - 5 S 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N DR - A B - 1 0 S D R - A B - 1 0 S L D R - A B - 2 5 S D R - A B - 5 S Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Al k a l i n i t y , C O 3 N - - u g / l 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U Al k a l i n i t y , H C O 3 N - - u g / l 1 1 2 0 0 0 1 6 6 0 0 0 1 0 7 0 0 0 6 0 2 0 0 Al k a l i n i t y , l a b N - - u g / l 1 1 2 0 0 0 1 6 6 0 0 0 1 0 7 0 0 0 6 0 2 0 0 Al u m i n u m D - - u g / l 1 0 0 U 1 0 0 U 5 6 . 1 J 9 4 . 7 J Al u m i n u m T - - u g / l 6 0 . 7 J 1 8 8 2 4 0 8 1 . 7 J An t i m o n y D - - u g / l 0 . 2 1 J 0 . 4 8 J 4 . 4 5 U An t i m o n y T 1 IM A C u g / l 0 . 4 4 J 0 . 5 1 4. 3 5 U Ar s e n i c D - - u g / l 2 3 1 4 . 4 2 5 7 1 4 4 Ar s e n i c T 10 02 L u g / l 24 9 4. 7 24 3 1 7 2 Ba r i u m D - - u g / l 1 8 1 1 2 3 9 3 . 1 7 1 Ba r i u m T 7 0 0 0 2 L u g / l 1 9 1 1 2 3 1 0 2 7 4 . 2 Be r y l l i u m D - - u g / l 0 . 1 1 J + 0 . 0 2 2 J 0 . 1 U 0 . 1 8 J Be r y l l i u m T 4 I M A C u g / l 0 . 1 3 0 . 0 1 2 J + 0 . 1 U 1 U Bo r o n D - - u g / l 3 1 1 4 5 1 5 5 4 3 2 5 Bo r o n T 7 0 0 0 2 L u g / l 3 2 2 4 7 6 6 1 0 3 4 5 Ca d m i u m D - - u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U Ca d m i u m T 2 0 2 L u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U Ca l c i u m T - - u g / l 2 9 3 0 0 2 3 6 0 0 3 9 1 0 0 5 1 2 0 0 Ca r b o n N - - u g / l 5 4 0 J 1 2 0 0 1 0 0 0 U 1 0 0 0 U Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l 1 3 1 0 0 2 0 0 0 0 1 5 2 0 0 9 9 0 0 Ch r o m i u m D - - u g / l 0 . 9 9 1 . 1 J + 0 . 2 9 J + 5 U Ch r o m i u m T 1 0 0 2 L u g / l 0 . 6 5 J + 4 . 7 0 . 8 9 J + 5 U Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l 0 . 0 3 U 0. 5 4 0. 0 1 4 J 0 . 0 3 U Co b a l t D - - u g / l 1 3 . 5 0 . 4 7 0 . 0 5 1 J 3 2 . 5 Co b a l t T 1 IM A C u g / l 13 . 5 0. 5 4 0 . 2 31.2 Co p p e r D - - u g / l 0 . 2 9 J 0 . 9 4 0 . 4 8 J 5 U Co p p e r T 1 0 0 0 0 2 L u g / l 0 . 4 1 J 1 . 4 0 . 4 1 J 5 U Ir o n D - - u g / l 1 1 5 0 0 5 0 U 5 0 U 3 5 5 0 0 Ir o n T 30 0 02 L u g / l 13 2 0 0 15 3 2 7 5 37500 Le a d D - - u g / l 0 . 1 U 0 . 1 U 0 . 1 U 1 U Le a d T 1 5 0 2 L u g / l 0 . 1 U 0 . 1 4 0 . 1 1 1 U Ma g n e s i u m T - - u g / l 6 8 4 0 8 3 2 0 6 9 0 0 1 1 0 0 0 Ma n g a n e s e D - - u g / l 9 2 7 3 7 1 1 8 . 3 1 3 3 0 Ma n g a n e s e T 50 02 L u g / l 10 2 0 3 7 1 26 . 3 1400 Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Pa g e 1 o f 3 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 2 : R o u n d 5 A n a l y t i c a l R e s u l t s o f P o r e w a t e r M o n i t o r i n g AB - 1 0 S A B - 1 0 S L A B - 2 5 S A B - 5 S 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N DR - A B - 1 0 S D R - A B - 1 0 S L D R - A B - 2 5 S D R - A B - 5 S Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Mercury D - - u g / l 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U Me r c u r y T 1 0 2 L u g / l 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U Me t h a n e N - - u g / l 1 4 . 3 2 7 . 8 2 1 . 9 1 3 . 4 Mo l y b d e n u m D - - u g / l 1 3 . 2 3 0 . 6 4 1 . 3 1 9 . 8 Mo l y b d e n u m T - - u g / l 1 0 . 8 3 1 . 9 4 1 . 2 1 8 . 1 Ni c k e l D - - u g / l 7 . 8 5 . 1 1 . 2 2 8 . 2 Ni c k e l T 1 0 0 0 2 L u g / l 6 . 5 5 . 8 1 . 5 2 5 . 7 Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l 2 0 U 2 4 0 4 2 2 0 U J Po t a s s i u m T - - u g / l 6 6 1 0 2 5 6 0 0 7 2 1 0 1 4 4 0 0 Se l e n i u m D - - u g / l 0 . 5 U 0 . 3 6 J 2 2 . 5 5 U Se l e n i u m T 20 02 L u g / l 0 . 5 6 0 . 3 4 J 21 . 6 5 U So d i u m T - - u g / l 1 8 7 0 0 4 9 7 0 0 2 9 5 0 0 1 5 3 0 0 St r o n t i u m D - - u g / l 7 6 2 3 7 3 8 8 6 1 1 5 0 St r o n t i u m T - - u g / l 7 8 9 3 8 7 9 6 3 1 2 2 0 Su l f a t e N 2 5 0 0 0 0 0 2 L u g / l 2 8 3 0 0 3 7 9 0 0 6 8 7 0 0 1 5 2 0 0 0 Su l f i d e N - - u g / l 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U Th a l l i u m D - - u g / l 0 . 3 1 0 . 0 7 1 J 0 . 3 1 0 . 7 2 J Th a l l i u m T 0. 2 IM A C u g / l 0. 3 0. 0 6 8 J 0. 3 2 0 . 6 6 J To t a l D i s s o l v e d S o l i d s N 5 0 0 0 0 0 0 2 L u g / l 2 0 9 0 0 0 2 5 4 0 0 0 2 2 9 0 0 0 3 5 2 0 0 0 To t a l S u s p e n d e d S o l i d s N - - u g / l 5 9 0 0 7 4 0 0 8 5 0 0 3 2 0 0 0 Ur a n i u m , N a t u r a l T - - u g / l - - - - 1 1 . 4 - - Va n a d i u m D - - u g / l 0 . 9 8 3 . 6 5 4 . 5 3 U Va n a d i u m T 0. 3 IM A C u g / l 2. 2 4 . 4 5 5 . 9 0 . 7 1 J Zi n c D - - u g / l 4 . 8 J 1 0 U 1 0 U 1 4 . 5 Zi n c T 1 0 0 0 0 2 L u g / l 4 . 7 J 1 0 U 1 0 U 1 4 . 3 Di s s o l v e d O x y g e n N - - m g / l 0 . 4 0 . 7 0 . 2 0 . 5 Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V - 2 3 . 4 2 9 8 5 . 4 - 2 7 . 6 pH N 6. 5 - 8 . 5 02 L S U 6. 3 8. 4 8 . 2 6 . 5 Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m 3 5 7 . 3 5 0 4 4 0 8 . 8 6 0 0 Te m p e r a t u r e N - - D e g C 2 5 . 3 2 9 . 4 2 1 . 3 2 0 . 3 Tu r b i d i t y , f i e l d N - - N T U 9 . 7 9 . 5 5 . 8 9 . 8 Pa g e 2 o f 3 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 2 : R o u n d 5 A n a l y t i c a l R e s u l t s o f P o r e w a t e r M o n i t o r i n g AB - 1 0 S A B - 1 0 S L A B - 2 5 S A B - 5 S 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N DR - A B - 1 0 S D R - A B - 1 0 S L D R - A B - 2 5 S D R - A B - 5 S Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 L G W Q S , IM A C , o r D H H S GW Q S S o u r c e U n i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h i c h e q u a l t h e l a b o r a t o r y ' s m e t h o d r e p o r t i n g l i m i t 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B . 0 2 1 1 a n d . 0 2 1 6 ( a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a D e p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n Pa g e 3 o f 3 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 3 : R o u n d 5 A n a l y t i c a l R e s u l t s o f S u r f a c e W a t e r L o c a t i o n s SW - 1 S W - 1 0 S W - 1 1 S W - 1 2 S W - 1 3 S W - 3 S W - 4 S W - 5 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2016 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N DR - S W - 1 D R - S W - 1 0 D R - S W - 1 1 D R - S W - 1 2 D R - S W - 1 3 D R - S W - 3 D R - S W - 4 D R - S W - 5 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 B S W Q S (C l a s s C ) Un i t Al k a l i n i t y , C O 3 N - - u g / l 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U Al k a l i n i t y , H C O 3 N - - u g / l 5 4 0 0 0 3 9 1 0 0 3 9 7 0 0 4 0 3 0 0 3 8 4 0 0 3 8 9 0 0 3 9 6 0 0 5 0 6 0 0 Al k a l i n i t y , l a b N - - u g / l 5 4 0 0 0 3 9 1 0 0 3 9 7 0 0 4 0 3 0 0 3 8 4 0 0 3 8 9 0 0 3 9 6 0 0 5 0 6 0 0 Al u m i n u m D - - u g / l 1 0 0 U 1 0 0 U 1 0 0 U 5 8 . 3 J 1 0 0 U 1 0 0 U 5 7 . 5 J 1 0 0 U Al u m i n u m T 87 ug / l 13 7 1 2 5 1 6 3 1 3 2 1 2 9 1 5 1 2 2 6 79.9 J An t i m o n y D - - u g / l 8 . 2 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 1 3 J 0 . 5 U 0 . 5 2 An t i m o n y T 6 4 0 u g / l 8 . 5 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 8 Ar s e n i c D 1 5 0 u g / l 1 0 . 5 1 . 7 0 . 46 0 . 4 2 0 . 2 1 0 . 5 9 0 . 1 8 0 . 3 Ar s e n i c T 10 ug / l 12 . 9 1. 7 0 . 5 5 0 . 4 1 0 . 2 5 0 . 6 1 0 . 2 3 0 . 4 2 Ba r i u m D - - u g / l 1 3 8 1 6 . 2 1 5 . 6 1 4 . 4 1 3 . 9 1 6 . 5 1 2 . 8 2 1 . 8 Ba r i u m T 2 0 0 0 0 0 u g / l 1 5 2 1 7 . 6 1 6 . 3 1 6 . 3 1 6 . 2 1 6 . 2 1 5 . 2 2 4 Be r y l l i u m D 6 . 5 u g / l 0 . 0 2 7 J + 0 . 0 2 5 J + 0 . 0 1 9 J+ 0 . 0 3 7 J + 0 . 0 2 5 J + 0 . 0 1 9 J + 0 . 0 1 9 J + 0 . 0 2 6 J + Be r y l l i u m T - - u g / l 0 . 0 3 J + 0 . 0 4 3 J + 0 . 0 1 8 J + 0. 0 2 5 J + 0 . 0 4 4 J + 0 . 1 U 0 . 0 3 7 J + 0 . 1 U Bo r o n D - - u g / l 2 0 7 3 9 . 8 J 3 7 . 1 J 2 6 J 5 0 U 3 7 J 5 0 U 2 6 . 3 J Bo r o n T - - u g / l 2 2 7 4 1 . 3 J 3 6 . 7 J 2 7 . 7 J 5 0 U 3 5 . 9 J 5 0 U 2 9 . 3 J Ca d m i u m D 0 . 1 5 u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U Ca d m i u m T - - u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 .0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U Ca l c i u m T - - u g / l 2 9 4 0 0 1 2 2 0 0 1 1 8 0 0 1 1 3 0 0 1 0 9 0 0 1 1 7 0 0 1 0 8 0 0 1 4 6 0 0 Ca r b o n N - - u g / l 2 3 0 0 1 4 0 0 1 3 0 0 1 3 0 0 1 5 0 0 1 5 0 0 1 7 0 0 2 6 0 0 Ch l o r i d e N 2 3 0 0 0 0 u g / l 9 9 0 0 8 1 0 0 8 1 0 0 8 2 0 0 8 2 0 0 8 1 0 0 8 2 0 0 1 4 4 0 0 Ch r o m i u m D 1 1 u g / l 0 . 2 8 J + 0 . 3 9 J + 0 . 4 J + 0. 3 9 J + 0 . 5 2 J + 0 . 5 8 J + 0 . 3 6 J + 0 . 2 8 J + Ch r o m i u m T - - u g / l 0 . 3 7 J + 0 . 2 8 J + 0 . 3 2 J+ 0 . 3 6 J + 0 . 2 9 J + 0 . 3 4 J + 0 . 5 J + 0 . 4 J + Ch r o m i u m 6 + T - - u g / l 0 . 0 9 2 0 . 0 5 9 0. 0 5 9 0 . 0 6 9 0 . 1 1 0 . 0 4 2 J - 0 . 0 5 8 0 . 0 1 8 J Co b a l t D - - u g / l 0 . 1 7 0 . 2 7 0 . 2 4 0. 2 2 0 . 2 3 0 . 2 4 0 . 1 1 0 . 3 4 Co b a l t T 4 u g / l 0 . 3 4 0 . 2 9 0 . 3 4 0. 2 7 0 . 2 5 0 . 3 4 0 . 2 6 0 . 2 7 Co p p e r D 2 . 7 u g / l 2 . 1 J + 1 . 8 J + 0 . 9 2 J + 1 . 5 J + 1 . 2 J + 1 J + 1 . 7 J + 1 . 6 J + Co p p e r T - - u g / l 1 . 2 0 . 6 3 0 . 71 0 . 7 4 1 . 2 0 . 7 8 1 . 1 1 . 1 Ir o n D - - u g / l 3 5 . 7 J 2 5 . 3 J 5 0 U 4 3 . 5 J 4 1 . 4 J 5 0 U 3 9 . 2 J 1 8 0 Ir o n T - - u g / l 1 5 4 1 9 1 2 3 1 2 0 7 2 0 8 2 3 9 3 3 4 3 8 3 J Le a d D 0 . 5 4 u g / l 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U Le a d T - - u g / l 0 . 1 5 0 . 0 9 7 J 0 . 1 4 0. 1 2 0 . 2 3 0 . 1 4 0 . 2 6 0 . 1 2 Ma g n e s i u m T - - u g / l 7 8 8 0 3 8 9 0 3 8 4 0 3 7 8 0 3 7 0 0 3 7 8 0 3 6 0 0 6 3 2 0 Ma n g a n e s e D - - u g / l 3 7 . 5 9 0 . 9 82 6 3 . 4 4 5 . 8 7 3 . 6 1 6 . 4 1 5 6 Ma n g a n e s e T - - u g / l 6 5 . 8 1 0 1 8 5 . 3 6 8 . 4 5 4 8 3 . 1 4 0 . 9 1 1 9 J Me r c u r y T 0 . 0 1 2 u g / l 0 . 0 0 2 0 4 J + 0 . 0 0 1 4 J + 0 . 0 0 0 9 6 7 J+ 0 . 0 0 1 0 1 J + 0 . 0 0 1 0 4 J + 0 . 0 0 1 0 4 J + 0 . 0 0 1 2 J + 0 . 0 0 1 2 3 J + Me t h a n e N - - u g / l 1 0 U 1 0 U 1 3 . 3 1 0 U 1 0 U 1 0 U 1 0 U 1 6 . 4 Mo l y b d e n u m D - - u g / l 4 9 . 4 2 . 2 1 . 6 0. 9 7 0 . 5 8 2 . 1 0 . 1 4 J 0 . 3 9 J Mo l y b d e n u m T 2 0 0 0 u g / l 5 3 2 . 1 1 . 8 0 . 87 0 . 4 1 J 1 . 6 0 . 1 3 J 0 . 4 2 J Ni c k e l D 1 6 u g / l 3 . 3 J + 1 . 7 J + 0 . 9 3 J + 0 . 8 8 J + 1 . 5 J + 1 J + 0 . 7 9 J + 0 . 8 5 J + Ni c k e l T - - u g / l 2 . 2 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 4 5 J 0 . 5 2 0 . 5 5 Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l 2 0 U 2 1 0 2 2 0 2 3 0 2 4 0 2 0 0 2 7 0 1 6 0 Po t a s s i u m T - - u g / l 5 7 2 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U Se l e n i u m D - - u g / l 3 . 4 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U Se l e n i u m T 5 u g / l 3 . 1 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U So d i u m T - - u g / l 1 1 6 0 0 8 6 2 0 8 5 8 0 8 1 6 0 8 0 9 0 8 4 9 0 7 7 9 0 1 0 3 0 0 St r o n t i u m D - - u g / l 4 6 9 1 2 5 1 1 9 1 1 0 1 0 1 1 2 1 9 4 . 6 1 2 6 St r o n t i u m T 4 0 0 0 0 u g / l 5 1 0 1 3 2 1 1 6 1 1 7 1 1 3 1 1 8 1 0 1 1 3 9 Su l f a t e N - - u g / l 6 6 5 0 0 1 1 7 0 0 1 1 1 0 0 8 8 0 0 7 5 0 0 1 0 9 0 0 6 0 0 0 1 2 1 0 0 Su l f i d e N - - u g / l 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U Th a l l i u m D - - u g / l 0 . 2 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Pa g e 1 o f 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 3 : R o u n d 5 A n a l y t i c a l R e s u l t s o f S u r f a c e W a t e r L o c a t i o n s SW - 1 S W - 1 0 S W - 1 1 S W - 1 2 S W - 1 3 S W - 3 S W - 4 S W - 5 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4/ 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2016 4 / 2 5 / 2 0 1 6 4 / 2 5 / 2 0 1 6 NN N N N N N N DR - S W - 1 D R - S W - 1 0 D R - S W - 1 1 D R - S W - 1 2 D R - S W - 1 3 D R - S W - 3 D R - S W - 4 D R - S W - 5 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 B S W Q S (C l a s s C ) Un i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Th a l l i u m T 0 . 4 7 u g / l 0 . 1 9 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U To t a l D i s s o l v e d S o l i d s N - - u g / l 1 6 5 0 0 0 9 2 0 0 0 8 7 0 0 0 9 4 0 0 0 7 4 0 0 0 9 3 0 0 0 7 9 0 0 0 1 1 4 0 0 0 To t a l S u s p e n d e d S o l i d s N - - u g / l 5 8 9 0 0 2 5 0 0 U 6 8 0 0 5 0 0 0 U 2 5 0 0 U 5 2 0 0 2 6 0 0 U 2 5 0 0 U Va n a d i u m D - - u g / l 3 . 3 0 . 3 4 0 . 2 9 J 0 .3 1 0 . 2 9 J 0 . 3 J 0 . 2 7 J 0 . 2 3 J Va n a d i u m T - - u g / l 4 . 5 0 . 4 3 0 . 51 0 . 4 4 0 . 3 9 0 . 5 3 0 . 5 8 0 . 4 5 Zi n c D 3 6 u g / l 4 . 8 J + 1 0 U 1 0 U 1 0 U 4 . 6 J + 3 . 7 J + 1 0 U 5 . 1 J + Zi n c T - - u g / l 1 2 6 1 0 U 1 0 U 1 0 U 6 . 2 J 1 0 U 4 J 3 . 6 J Di s s o l v e d O x y g e n N - - m g / l 5 . 9 5 7 . 12 7 . 4 5 6 . 7 1 7 . 1 9 7 . 5 9 7 . 3 4 6 . 5 6 Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V 10 1 . 4 9 3 1 1 5 . 4 9 6 . 7 9 5 . 1 9 5 . 9 9 0 . 7 1 1 0 . 2 pH N 6 . 0 - 9 . 0 S U 7 . 9 7 . 9 8 . 4 8 7 . 9 7 . 7 7 . 8 7 . 4 Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m 2 9 1 . 1 9 1 . 8 2 1 0 . 8 1 4 4 . 1 1 3 7 . 8 1 5 1 . 7 1 2 8 1 9 6 . 6 Te m p e r a t u r e N - - D e g C 2 2 . 8 1 9 . 1 2 0 . 3 1 8 . 6 2 0 . 1 2 0 . 7 1 8 . 7 2 2 . 7 Tu r b i d i t y , f i e l d N - - N T U 9 . 3 4 13 . 0 6 9 . 0 3 7 . 2 5 6 . 3 5 8 . 5 6 6 . 3 4 . 2 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a D e p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h i c h e q u a l t h e l a b o r a t o r y ' s m e t h o d re p o r t i n g l i m i t 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B .0 2 1 1 a n d . 0 2 1 6 ( a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) Pa g e 2 o f 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 3 : R o u n d 5 A n a l y t i c a l R e s u l t s o f S u r f a c e W a t e r L o c a t i o n s Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 B S W Q S (C l a s s C ) Un i t Al k a l i n i t y , C O 3 N - - u g / l Al k a l i n i t y , H C O 3 N - - u g / l Al k a l i n i t y , l a b N - - u g / l Al u m i n u m D - - u g / l Al u m i n u m T 87 ug / l An t i m o n y D - - u g / l An t i m o n y T 6 4 0 u g / l Ar s e n i c D 1 5 0 u g / l Ar s e n i c T 10 ug / l Ba r i u m D - - u g / l Ba r i u m T 2 0 0 0 0 0 u g / l Be r y l l i u m D 6 . 5 u g / l Be r y l l i u m T - - u g / l Bo r o n D - - u g / l Bo r o n T - - u g / l Ca d m i u m D 0 . 1 5 u g / l Ca d m i u m T - - u g / l Ca l c i u m T - - u g / l Ca r b o n N - - u g / l Ch l o r i d e N 2 3 0 0 0 0 u g / l Ch r o m i u m D 1 1 u g / l Ch r o m i u m T - - u g / l Ch r o m i u m 6 + T - - u g / l Co b a l t D - - u g / l Co b a l t T 4 u g / l Co p p e r D 2 . 7 u g / l Co p p e r T - - u g / l Ir o n D - - u g / l Ir o n T - - u g / l Le a d D 0 . 5 4 u g / l Le a d T - - u g / l Ma g n e s i u m T - - u g / l Ma n g a n e s e D - - u g / l Ma n g a n e s e T - - u g / l Me r c u r y T 0 . 0 1 2 u g / l Me t h a n e N - - u g / l Mo l y b d e n u m D - - u g / l Mo l y b d e n u m T 2 0 0 0 u g / l Ni c k e l D 1 6 u g / l Ni c k e l T - - u g / l Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l Po t a s s i u m T - - u g / l Se l e n i u m D - - u g / l Se l e n i u m T 5 u g / l So d i u m T - - u g / l St r o n t i u m D - - u g / l St r o n t i u m T 4 0 0 0 0 u g / l Su l f a t e N - - u g / l Su l f i d e N - - u g / l Th a l l i u m D - - u g / l Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : SW - 5 S W - 6 S W - 7 S W - 8 4/ 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 FD N N N DR - S W - 5 - F D - M R M - 1 D R - S W - 6 D R - S W - 7 D R - S W - 8 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 50 1 0 0 2 1 5 0 0 2 2 1 0 0 2 1 5 0 0 50 1 0 0 2 1 5 0 0 2 2 1 0 0 2 1 5 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 87 . 6 J 77 J - 7 8 . 8 J 8 5 . 8 J 0. 5 4 0 . 5 U 0 . 1 4 J 0 . 5 U 0. 5 2 0 . 5 U 0 . 5 U 0 . 5 U 0. 3 3 0 . 1 0 . 0 8 6 J 0 . 0 9 9 J 0. 4 3 0 . 1 3 0 . 1 2 0 . 1 3 22 1 5 . 8 1 5 . 9 1 6 . 2 24 . 7 1 8 . 4 J - 1 8 . 6 1 8 . 8 0. 0 2 5 J + 0 . 0 1 4 J + 0 . 0 3 5 J + 0 . 0 2 8 J + 0. 0 1 3 J + 0 . 0 1 3 J + 0 . 1 U 0 . 0 2 J + 25 . 2 J 3 4 J 3 2 . 2 J 3 1 . 2 J 27 . 6 J 4 1 . 6 J - 4 2 . 7 J 3 9 . 6 J 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 14 6 0 0 5 6 6 0 5 7 3 0 5 6 7 0 31 0 0 1 4 0 0 1 5 0 0 1 5 0 0 14 5 0 0 4 7 0 0 4 8 0 0 4 7 0 0 0. 3 2 J + 0 . 3 2 J + 0 . 5 1 J + 0 . 2 5 J + 0. 3 8 J + 0 . 5 4 J + 0 . 5 8 J + 0 . 5 1 J + 0. 0 1 2 J 0 . 0 4 6 0 . 0 2 6 J 0 . 0 2 9 J 0. 3 4 0 . 0 9 2 J 0 . 1 0 . 1 2 0. 3 8 0 . 1 6 0 . 1 7 0 . 1 9 0. 9 5 J + 0 . 9 9 J + 0 . 8 3 J + 1 . 1 J + 1 0 . 7 0 . 7 2 0 . 7 6 17 9 1 1 5 1 2 5 6 8 . 1 58 0 J 3 3 1 J - 3 1 4 3 6 1 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0. 1 4 0 . 1 4 0 . 1 6 0 . 1 6 63 3 0 2 1 7 0 2 1 7 0 2 1 5 0 15 7 1 7 . 5 1 7 . 5 2 4 . 7 17 7 J 2 6 . 2 J - 2 6 3 2 . 1 0. 0 0 1 3 2 J + 0 . 0 0 1 0 4 0 . 0 0 1 1 5 0 . 0 0 1 7 3 47 1 0 U 1 0 U 1 2 . 1 0. 4 2 J 0 . 2 5 J 0 . 2 8 J 0 . 2 4 J 0. 4 J 0 . 2 9 J 0 . 2 6 J 0 . 2 5 J 0. 5 1 J + 0 . 5 2 0 . 7 3 0 . 8 5 0. 5 4 0 . 5 U 0 . 5 J 0 . 5 3 15 0 1 3 0 1 5 0 1 6 0 50 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 0. 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0. 5 U 0 . 5 U 0 . 5 U 0 . 5 U 10 4 0 0 4 3 6 0 J 4 5 4 0 J 4 3 3 0 J 12 7 3 6 . 8 3 7 . 4 3 6 . 4 13 6 4 1 . 6 J - 4 2 . 8 4 1 . 4 12 2 0 0 3 8 0 0 3 9 0 0 3 7 0 0 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U Pa g e 3 o f 4 Dan River Steam Station CSA Supplement 2 Ta b l e 3 - 3 : R o u n d 5 A n a l y t i c a l R e s u l t s o f S u r f a c e W a t e r L o c a t i o n s Co n s t i t u e n t F r a c t i o n NC D E Q 0 2 B S W Q S (C l a s s C ) Un i t Lo c a t i o n : Da t e : Sa m p l e T y p e : Sa m p l e N a m e : Ev e n t : Th a l l i u m T 0 . 4 7 u g / l To t a l D i s s o l v e d S o l i d s N - - u g / l To t a l S u s p e n d e d S o l i d s N - - u g / l Va n a d i u m D - - u g / l Va n a d i u m T - - u g / l Zi n c D 3 6 u g / l Zi n c T - - u g / l Di s s o l v e d O x y g e n N - - m g / l Ox i d a t i o n R e d u c t i o n P o t e n t i a l N - - m V pH N 6 . 0 - 9 . 0 S U Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m Te m p e r a t u r e N - - D e g C Tu r b i d i t y , f i e l d N - - N T U 50 Ex c e e d s N C D E Q 0 2 L G W Q S , I M A C , o r D H H S s t a n d a r d s . 50 Ex c e e d s N C D E Q 0 2 B S W Q S C l a s s B s t a n d a r d s . No t e s : µm = m i c r o n µg / L = m i c r o g r a m s p e r l i t e r µS / c m = m i c r o s i e m e n s p e r c e n t i m e t e r ft = f e e t mg / L = m i l l i g r a m s p e r l i t e r mV = m i l l i v o l t s NT U - n e p h e l o m e t r i c t u r b i d i t y u n i t s pC i / L = p i c o c u r i e s p e r l i t e r SU = s t a n d a r d u n i t J = l a b o r a t o r y e s t i m a t e d c o n c e n t r a t i o n J- = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d l o w J+ = e s t i m a t e d c o n c e n t r a t i o n , b i a s e d h i g h 02 L = N o r t h C a r o l i n a g r o u n d w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 A N C A C 0 2 L D = d i s s o l v e d De g C = d e g r e e C e l s i u s DH H S = N o r t h C a r o l i n a D e p a r t m e n t o f H e a l t h a n d H u m a n S e r v i c e s DO = d i s s o l v e d o x y g e n GW = g r o u n d w a t e r GW Q S = g r o u n d w a t e r q u a l i t y s t a n d a r d IM A C = I n t e r i m M a x i m u m A l l o w C o n c e n t r a t i o n N = n o r m a l NS = n o s t a n d a r d T = t o t a l TD S = t o t a l d i s s o l v e d s o l i d s TO C = t o t a l o r g a n i c c a r b o n U = r e s u l t s n o t d e t e c t e d a t c o n c e n t r a t i o n s w h i c h e q u a l t h e l a b o r a t o r y ' s m e t h o d re p o r t i n g l i m i t 02 B = N o r t h C a r o l i n a s u r f a c e w a t e r s t a n d a r d s a s s p e c i f i e d i n T 1 5 N C A C 0 2 B .0 2 1 1 a n d . 0 2 1 6 ( a m e n d e d e f f e c t i v e J a n u a r y 2 0 1 5 ) SW - 5 S W - 6 S W - 7 S W - 8 4/ 2 5 / 2 0 1 6 4 / 2 6 / 2 0 1 6 4/ 2 6 / 2 0 1 6 4 / 2 6 / 2 0 1 6 FD N N N DR - S W - 5 - F D - M R M - 1 D R - S W - 6 D R - S W - 7 D R - S W - 8 Ro u n d 5 R o u n d 5 R o u n d 5 R o u n d 5 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 11 5 0 0 0 4 3 0 0 0 3 7 0 0 0 4 1 0 0 0 31 0 0 4 2 0 0 4 2 0 0 7 4 0 0 0. 3 0 . 5 J + 0 . 5 5 J + 0 . 4 6 J + 0. 4 6 0 . 7 8 0 . 7 6 0 . 8 6 4. 6 J + 3 . 2 J + 1 0 U 1 0 U 5. 2 J 1 0 U J 7 . 2 J 1 0 U 6. 5 6 8 . 9 6 - - 5 . 3 11 0 . 2 1 0 9 . 8 - - 1 1 8 . 7 7. 4 6 . 9 - - 6 . 8 19 6 . 6 7 1 . 7 - - 7 5 . 7 22 . 7 1 8 . 2 - - 2 0 . 3 4. 2 4 . 7 9 - - 1 2 . 9 Pa g e 4 o f 4 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/26/2015 47.28 492.14 9/2/2015 47.32 492.10 6/12/2016 46.65 492.77 6/26/2015 19.12 520.32 9/2/2015 19.40 520.04 6/12/2016 20.99 572.45 6/26/2015 40.58 498.84 9/2/2015 40.91 498.51 6/12/2016 40.93 498.49 6/26/2015 56.78 486.12 9/2/2015 57.05 485.85 6/12/2016 55.77 487.13 6/26/2015 51.46 491.51 9/2/2015 52.20 490.77 6/12/2016 48.81 494.16 6/26/2015 46.30 496.57 9/2/2015 47.39 495.48 6/12/2016 42.80 500.07 6/26/2015 39.37 489.90 9/2/2015 23.24 506.03 6/12/2016 40.44 488.77 6/26/2015 38.87 490.60 9/2/2015 38.92 490.55 6/12/2016 39.03 490.41 6/26/2015 15.16 514.18 9/2/2015 15.19 514.15 6/12/2016 17.13 512.15 6/26/2015 23.01 508.98 9/2/2015 22.46 509.53 6/12/2016 23.60 508.39 6/26/2015 12.29 521.56 9/2/2015 12.47 521.38 6/12/2016 13.33 520.52 6/26/2015 11.94 522.06 9/2/2015 12.12 521.88 6/12/2016 13.20 520.80 6/26/2015 21.78 570.06 9/2/2015 23.22 568.62 6/12/2016 ‐‐ ‐‐ 6/26/2015 10.75 548.95 9/2/2015 11.54 548.16 6/12/2016 9.84 549.86 6/26/2015 32.68 528.32 9/2/2015 32.82 528.18 6/12/2016 29.99 531.04 AB‐30BR 529.27 AB‐30D 529.47 AB‐30S 529.34 AS‐10D 591.84 AS‐12S 559.70 AS‐2D 561.00 AB‐35BR 531.99 542.87 AB‐10D AB‐10SL AB‐10S AB‐25BR AB‐25D AB‐25S 539.42 539.42 539.44 542.90 542.97 AB‐5D 533.85 AB‐5S 534.00 Page 1 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/26/2015 17.50 544.67 9/2/2015 17.98 544.19 6/12/2016 ‐‐ ‐‐ 6/26/2015 35.41 551.25 9/2/2015 36.31 550.35 6/12/2016 ‐‐ ‐‐ 6/26/2015 36.71 545.39 9/2/2015 37.25 544.85 6/12/2016 34.09 548.01 6/26/2015 37.10 545.13 9/2/2015 37.57 544.66 6/12/2016 34.60 547.63 6/26/2015 16.02 500.38 9/2/2015 16.67 499.73 6/12/2016 15.68 500.72 6/26/2015 7.74 507.17 9/2/2015 7.89 507.02 6/12/2016 6.68 508.23 6/26/2015 7.95 507.29 9/2/2015 7.98 507.26 6/12/2016 6.61 508.63 6/29/2015 33.56 520.00 9/2/2015 33.67 519.89 6/12/2016 33.15 520.49 6/29/2015 30.33 523.07 9/2/2015 30.27 523.13 6/12/2016 ‐‐ ‐‐ 6/26/2015 18.32 541.45 9/2/2015 19.65 540.12 6/12/2016 17.53 542.25 6/26/2015 19.78 540.35 9/2/2015 20.08 540.05 6/12/2016 18.28 541.84 6/29/2015 20.14 564.31 9/2/2015 21.05 563.40 6/12/2016 18.53 565.96 6/29/2015 12.41 572.49 9/2/2015 13.70 571.20 6/12/2016 11.90 573.03 6/26/2015 6.54 493.65 9/2/2015 6.17 494.02 6/12/2016 6.02 494.17 6/26/2015 10.92 489.05 9/2/2015 9.22 490.75 6/12/2016 9.02 490.95 AS‐4D 562.17 AS‐6D 586.66 AS‐8BR 582.10 BG‐5S 515.24 GWA‐10D 553.56 GWA‐10S 553.40 AS‐8D 582.23 BG‐1D 516.40 BG‐5D 514.91 GWA‐12S 584.90 GWA‐14D 500.19 GWA‐11D 559.77 GWA‐11S 560.13 GWA‐12D 584.45 GWA‐14S 499.97 Page 2 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/26/2015 22.60 481.53 9/2/2015 22.82 481.31 6/12/2016 21.91 482.22 6/26/2015 DRY ‐‐ 9/2/2015 DRY ‐‐ 6/12/2016 DRY ‐‐ 6/29/2015 30.57 571.01 9/2/2015 32.09 569.49 6/12/2016 27.00 574.58 6/29/2015 28.81 572.58 9/2/2015 32.25 569.14 6/12/2016 24.88 576.51 6/26/2015 27.76 560.28 9/2/2015 29.17 558.87 6/12/2016 ‐‐ ‐‐ 6/26/2015 23.45 564.12 9/2/2015 25.00 562.57 6/12/2016 ‐‐ ‐‐ 6/26/2015 24.22 549.82 9/2/2015 24.72 549.32 6/12/2016 ‐‐ ‐‐ 6/26/2015 21.02 552.96 9/2/2015 21.32 552.66 6/12/2016 ‐‐ ‐‐ 6/26/2015 27.25 499.95 9/2/2015 27.05 500.15 6/12/2016 27.59 499.61 6/26/2015 21.99 505.88 9/2/2015 21.78 506.09 6/12/2016 22.76 505.11 6/26/2015 3.43 496.30 9/2/2015 3.11 496.62 6/12/2016 3.10 496.63 6/26/2015 17.94 483.26 9/2/2015 17.48 483.72 6/12/2016 16.35 484.85 6/26/2015 13.53 487.95 9/2/2015 14.54 486.94 6/12/2016 12.54 488.94 6/26/2015 17.33 526.15 9/2/2015 18.61 524.87 6/12/2016 16.18 527.30 6/26/2015 16.08 527.08 9/2/2015 17.58 525.58 6/12/2016 14.94 528.22 GWA‐15D 504.13 GWA‐3D 574.04 GWA‐3S 573.98 GWA‐4D 527.20 GWA‐15S 504.21 GWA‐1D 601.58 GWA‐2S 587.57 GWA‐1S 601.39 GWA‐2D 588.04 GWA‐4S 527.87 GWA‐5BR 499.73 GWA‐7S 543.16 GWA‐6S 501.48 GWA‐7D 543.48 501.20GWA‐6D Page 3 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/26/2015 16.26 567.75 9/2/2015 17.28 566.73 6/12/2016 14.06 569.95 6/26/2015 15.35 568.52 9/2/2015 15.86 568.01 6/12/2016 12.93 570.94 6/29/2015 30.93 580.37 9/2/2015 32.15 579.15 6/12/2016 26.78 584.52 6/29/2015 30.22 581.50 9/2/2015 31.42 580.30 6/12/2016 25.65 586.07 6/29/2015 ‐‐ ‐‐ 9/2/2015 DRY ‐‐ 6/12/2016 DRY ‐‐ 6/29/2015 50.05 482.00 9/2/2015 50.61 481.44 6/12/2016 49.15 482.65 6/29/2015 ‐‐ ‐‐ 9/2/2015 ‐‐ ‐‐ 6/12/2016 DRY ‐‐ 6/29/2015 DRY ‐‐ 9/2/2015 38.70 493.13 6/12/2016 38.31 492.85 6/29/2015 20.91 572.68 9/2/2015 22.42 571.17 6/12/2016 19.22 574.37 6/29/2015 20.52 572.71 9/2/2015 22.08 571.15 6/12/2016 17.87 575.36 6/29/2015 4.13 558.10 9/2/2015 5.10 557.13 6/12/2016 ‐‐ ‐‐ 6/29/2015 5.78 556.50 9/2/2015 6.54 555.74 6/12/2016 ‐‐ ‐‐ 6/29/2015 2.35 496.55 9/2/2015 1.88 497.02 6/12/2016 ‐‐ ‐‐ 6/29/2015 5.42 493.38 9/2/2015 5.06 493.74 6/12/2016 ‐‐ ‐‐ 6/26/2015 15.82 486.50 9/2/2015 16.26 486.06 6/12/2016 14.19 488.13 MW‐11D 531.83 GWA‐8D 584.01 MW‐10 531.81 MW‐10D 532.05 MW‐11 531.16 GWA‐8S 583.87 GWA‐9D 611.30 GWA‐9S 611.72 MW‐20S 562.28 MW‐21D 498.90 MW21S 498.80 MW‐12 593.59 MW‐12D 593.23 MW‐20D 562.23 MW‐22BR 502.32 Page 4 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/29/2015 38.96 465.56 9/2/2015 DRY ‐‐ 6/12/2016 ‐‐ ‐‐ 6/29/2015 20.42 484.77 9/2/2015 20.89 484.30 6/12/2016 ‐‐ ‐‐ 6/26/2015 FLOWING ARTESIAN ‐‐ 9/2/2015 FLOWING ARTESIAN ‐‐ 6/12/2016 FLOWING ARTESIAN ‐‐ 6/29/2015 14.75 513.47 9/2/2015 14.12 514.10 6/12/2016 12.75 515.47 6/29/2015 22.91 570.64 9/2/2015 24.10 569.45 6/12/2016 ‐‐ ‐‐ 6/26/2015 93.52 557.85 9/2/2015 93.74 557.63 6/12/2016 ‐‐ ‐‐ 6/26/2015 69.28 544.34 9/2/2015 69.81 543.81 6/12/2016 ‐‐ ‐‐ 6/26/2015 11.51 521.08 9/2/2015 11.45 521.14 6/12/2016 12.45 520.14 6/26/2015 17.43 521.48 9/2/2015 17.36 521.55 6/12/2016 17.72 521.19 6/26/2015 41.85 495.88 9/2/2015 42.22 495.51 6/12/2016 41.14 496.59 6/26/2015 29.30 510.45 9/2/2015 29.67 510.08 6/12/2016 27.20 512.55 6/26/2015 45.18 525.57 9/2/2015 45.58 525.17 6/12/2016 45.29 525.46 6/26/2015 24.18 547.75 9/2/2015 24.38 547.55 6/12/2016 21.94 549.99 6/26/2015 30.49 536.72 9/2/2015 30.72 536.49 6/12/2016 29.36 537.85 6/29/2015 20.39 506.02 9/2/2015 DRY ‐‐ 6/12/2016 DRY ‐‐ MW‐22S 505.19 MW‐23D 528.22 MW‐301BR 593.55 MW‐22D 504.52 MW‐23BR 527.55 MW‐310BR 538.91 MW‐311BR 537.73 MW‐314BR 539.75 MW‐303BR 651.37 MW‐306BR 613.62 MW‐308BR 532.59 MW‐9 526.41 MW‐315BR 570.75 MW‐317BR 571.93 MW‐318D 567.21 Page 5 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/29/2015 33.19 493.85 9/2/2015 34.24 492.80 6/12/2016 31.57 495.47 6/29/2015 10.42 583.57 9/2/2015 112.72 481.27 ‐‐ ‐‐ ‐‐ 6/26/2015 36.80 549.73 9/2/2015 11.31 575.22 ‐‐ ‐‐ ‐‐ 6/26/2015 79.41 571.02 9/2/2015 29.66 620.77 ‐‐ ‐‐ ‐‐ 6/29/2015 9.92 550.30 ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ 6/26/2015 14.56 546.30 9/2/2015 11.62 549.24 ‐‐ ‐‐ ‐‐ 6/26/2015 12.97 548.25 9/2/2015 11.45 549.77 ‐‐ ‐‐ ‐‐ 6/29/2015 63.04 548.11 9/2/2015 14.14 597.01 ‐‐ ‐‐ ‐‐ 6/29/2015 51.23 558.62 9/2/2015 13.27 596.58 ‐‐ ‐‐ ‐‐ 6/29/2015 18.23 516.65 9/2/2015 13.66 521.22 ‐‐ ‐‐ ‐‐ 6/29/2015 6.14 525.15 9/2/2015 6.75 524.54 ‐‐ ‐‐ ‐‐ 6/29/2015 7.54 521.48 9/2/2015 4.07 524.95 ‐‐ ‐‐ ‐‐ 6/29/2015 19.62 519.70 9/2/2015 ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ 6/29/2015 22.12 514.63 9/2/2015 29.66 507.09 ‐‐ ‐‐ ‐‐ 6/29/2015 ‐‐ ‐‐ 9/2/2015 27.55 496.19 ‐‐ ‐‐ ‐‐ MW‐9D 527.04 OW‐301D 593.99 OW‐304D 560.22 OW‐305D 560.86 OW‐305S 561.22 OW‐302D 586.53 OW‐303D 650.43 OW‐311D 536.75 OW‐312D 523.74 OW‐306D 611.15 OW‐306S 609.85 OW‐310S 539.32 OW‐307D OW‐309D 534.88 529.02 OW‐308D 531.29 Page 6 of 7 Dan River Steam Station CSA Supplement 2 Table 3‐4: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/29/2015 27.62 497.04 ‐‐ ‐‐ ‐‐ ‐‐ 6/29/2015 28.93 506.93 9/2/2015 3.20 532.66 ‐‐ ‐‐ ‐‐ 6/29/2015 32.21 509.09 9/2/2015 10.65 530.65 ‐‐ ‐‐ ‐‐ 6/29/2015 DRY ‐‐ 9/2/2015 62.19 478.69 ‐‐ ‐‐ ‐‐ 6/29/2015 22.12 547.17 9/2/2015 19.89 549.40 ‐‐ ‐‐ ‐‐ 6/29/2015 15.49 553.76 9/2/2015 3.09 566.16 ‐‐ ‐‐ ‐‐ 6/29/2015 15.28 557.58 9/2/2015 6.13 566.73 ‐‐ ‐‐ ‐‐ 6/29/2015 29.78 537.38 9/2/2015 1.80 565.36 ‐‐ ‐‐ ‐‐ 6/29/2015 DRY ‐‐ 9/2/2015 2.30 579.38 ‐‐ ‐‐ ‐‐ 6/29/2015 23.98 558.09 9/2/2015 55.56 526.51 ‐‐ ‐‐ ‐‐ 6/29/2015 3.00 607.39 9/2/2015 DRY ‐‐ ‐‐ ‐‐ ‐‐ 6/26/2015 11.06 580.95 9/2/2015 55.34 536.67 ‐‐ ‐‐ ‐‐ OW‐313D 535.86 OW‐320D OW‐321D 540.88 569.29 OW‐319S 582.07 OW‐312S 524.66 OW‐314D 541.30 OW‐318BR 567.16 OW‐319D 581.68 610.39 592.01 OW‐315S OW‐317D 569.25 572.86 OW‐314S OW‐315D Page 7 of 7 Dan River Steam Station CSA Supplement 2 Ta b l e  3 ‐5:  Su m m a r y  of  Ca t i o n ‐An i o n  Ba l a n c e  Di f f e r e n c e s Co n s t i t u e n t : Mo l e c u l a r W e i g h t ( g / m o l ) Ch a r g e Eq u i v a l e n t W e i g h t : Si t e L o c a t i o n M a t r i x D a t e Re s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L eq / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L e q / L Ri v e r b e n d SW - 1 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 5 4 0 . 8 8 5 9 . 9 0 . 2 7 9 0 0 6 6 . 5 1 . 38 4 2 . 5 4 8 2 9 . 4 1 . 4 6 6 7 . 8 8 0 . 6 4 9 5 . 7 2 0 . 1 4 6 1 1 . 6 0 . 5 0 4 2 . 7 6 5 4 . 1 % SW - 1 0 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 3 9 . 1 0 . 6 4 1 8 . 1 0 . 2 2 8 0 . 2 1 0 . 00 3 1 1 . 7 0 . 2 4 3 1 . 1 1 5 1 2 . 2 0 . 6 0 8 3 . 8 9 0 . 3 2 0 0 8 . 6 2 0 . 3 7 5 1 . 3 0 3 7 . 8 % SW - 1 1 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 3 9 . 7 0 . 6 5 1 8 . 1 0 . 2 2 8 0 . 2 2 0 . 00 4 1 1 . 1 0 . 2 3 1 1 . 1 1 4 1 1 . 8 0 . 5 8 9 3 . 8 4 0 . 3 1 6 0 0 8 . 5 8 0 . 3 7 3 1 . 2 7 8 6 . 9 % SW - 1 2 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 4 0 . 3 0 . 6 6 1 8 . 2 0 . 2 3 1 0 . 2 3 0 . 00 4 8 . 8 0 . 1 8 3 1 . 0 7 9 1 1 . 3 0 . 5 6 4 3 . 7 8 0 . 3 1 1 0 0 8 . 1 6 0 . 3 5 5 1 . 2 3 6 . 5 % SW - 1 3 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 3 8 . 4 0 . 6 3 8 . 2 0 . 2 3 1 0 . 2 4 0 . 00 4 7 . 5 0 . 1 5 6 1 . 0 2 1 1 0 . 9 0 . 5 4 4 3 . 7 0 . 3 0 5 0 0 8 . 0 9 0 . 3 5 2 1 . 2 0 1 8 . 1 % SW - 3 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 3 8 . 9 0 . 6 3 8 8 . 1 0 . 2 2 8 0 . 2 0 . 00 3 1 0 . 9 0 . 2 2 7 1 . 0 9 6 1 1 . 7 0 . 5 8 4 3 . 7 8 0 . 3 1 1 0 0 8 . 4 9 0 . 3 6 9 1 . 2 6 4 7 . 1 % SW - 4 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 3 9 . 6 0 . 6 4 9 8 . 2 0 . 2 3 1 0 . 2 7 0 . 00 4 6 0 . 1 2 5 1 . 0 0 9 1 0 . 8 0 . 5 3 9 3 . 6 0 . 2 9 6 0 0 7 . 7 9 0 . 3 3 9 1 . 1 7 4 7 . 6 % SW - 5 S u r f a c e W a t e r 4 / 2 5 / 2 0 1 6 0 0 5 0 . 6 0 . 8 3 1 4 . 4 0 . 4 0 6 0 . 1 6 0 . 00 3 1 2 . 1 0 . 2 5 2 1 . 4 9 1 1 4 . 6 0 . 7 2 8 6 . 3 2 0 . 5 2 0 0 1 0 . 3 0 . 4 4 8 1 . 6 9 6 6 . 4 % SW - 6 S u r f a c e W a t e r 4 / 2 6 / 2 0 1 6 0 0 2 1 . 5 0 . 3 5 2 4 . 7 0 . 1 3 2 0 . 1 3 0 . 00 2 3 . 8 0 . 0 7 9 0 . 5 6 5 5 . 6 6 0 . 2 8 2 2 . 1 7 0 . 1 7 9 0 0 4 . 3 6 0 . 1 9 0 . 6 5 1 7 . 1 % SW - 7 S u r f a c e W a t e r 4 / 2 6 / 2 0 1 6 0 0 2 2 . 1 0 . 3 6 2 4 . 8 0 . 1 3 5 0 . 1 5 0 . 00 2 3 . 9 0 . 0 8 1 0 . 5 8 5 . 7 3 0 . 2 8 6 2 . 1 7 0 . 1 7 9 0 0 4 . 5 4 0 . 1 9 7 0 . 6 6 2 6 . 6 % SW - 8 S u r f a c e W a t e r 4 / 2 6 / 2 0 1 6 0 0 2 1 . 5 0 . 3 5 2 4 . 7 0 . 1 3 2 0 . 1 6 0 . 00 3 3 . 7 0 . 0 7 7 0 . 5 6 4 5 . 6 7 0 . 2 8 3 2 . 1 5 0 . 1 7 7 0 0 4 . 3 3 0 . 1 8 8 0 . 6 4 8 6 . 9 % AB - 1 0 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 8 4 . 7 1 . 3 8 9 1 6 . 4 0 . 4 6 2 0 0 2 6 . 5 0 .5 5 2 2 . 4 0 3 3 9 . 3 1 . 9 6 5 . 9 1 0 . 4 8 6 0 0 2 7 . 4 1 . 1 9 1 3 . 6 3 7 2 0 . 4 % AB - 2 5 B R G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 8 4 . 3 1 . 3 8 2 2 2 . 2 0 . 6 2 5 0 0 9 8 2. 0 4 4 . 0 4 7 4 5 . 6 2 . 2 7 4 9 . 7 1 0 . 7 9 9 0 0 2 5 . 5 1 . 1 0 9 4 . 1 8 2 1 . 6 % AB - 2 5 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 6 1 . 1 1 . 0 0 2 2 0 . 2 0 . 5 6 9 0 0 8 4 . 6 1 .7 6 1 3 . 3 3 2 3 1 . 8 1 . 5 8 6 1 2 . 2 1 . 0 0 4 0 0 2 0 . 7 0 . 9 3 . 4 9 2 . 3 % AB - 3 0 B R G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 9 1 3 . 1 3 1 1 4 . 6 0 . 4 1 1 0 0 1 2 3 2 . 56 6 . 1 0 2 9 5 . 7 4 . 7 7 3 1 5 . 2 1 . 2 5 1 0 0 1 6 . 3 0 . 7 0 9 6 . 7 3 3 4 . 9 % AB - 3 0 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 2 0 1 . 9 6 7 2 0 . 9 0 . 5 8 9 0 0 9 2 1 . 91 5 4 . 4 7 1 6 4 . 8 3 . 2 3 2 1 0 . 9 0 . 8 9 7 0 0 1 3 . 6 0 . 5 9 1 4 . 7 2 2 . 7 % AB - 3 0 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 5 . 3 0 . 0 8 7 1 0 0 . 2 8 2 0 0 8 2 . 7 1 . 72 1 2 . 0 9 8 . 9 4 0 . 4 4 6 5 . 5 8 0 . 4 5 9 0 0 2 5 . 4 1 . 1 0 4 2 . 0 0 9 - 2 . 0 % AB - 3 5 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 2 5 4 4 . 1 6 4 1 1 . 7 0 . 3 3 0 0 1 2 1 2 . 5 1 8 7. 0 1 2 9 3 . 2 4 . 6 4 8 1 8 . 3 1 . 5 0 6 1 5 . 3 0 . 3 9 1 2 6 . 2 1 . 1 3 9 7 . 6 8 4 4 . 6 % AB - 5 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 7 6 2 . 8 8 5 1 9 . 6 0 . 5 5 2 0 0 7 7 . 5 1 . 6 1 3 5. 0 5 6 5 . 9 3 . 2 8 7 1 3 . 8 1 . 1 3 6 3 . 9 7 0 . 1 0 2 2 0 0 . 8 7 5 . 3 9 5 3 . 3 % AS - 1 2 S G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 8 4 3 . 0 1 6 1 8 . 1 0 . 5 1 0 . 0 2 4 0 7 8 . 3 1 .6 3 5 . 1 5 6 3 7 . 9 1 . 8 9 3 0 . 3 2 . 4 9 4 0 0 3 1 . 5 1 . 3 7 5 . 7 5 4 5 . 5 % AS - 2 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 2 5 1 4 . 1 1 5 1 7 . 5 0 . 4 9 3 0 0 1 7 9 3 . 7 2 5 8 . 33 3 9 9 . 4 4 . 9 5 8 3 3 . 2 2 . 7 3 3 2 . 6 3 0 . 0 6 7 2 8 . 4 1 . 2 3 5 8 . 9 9 3 3 . 8 % AS - 8 B R G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 7 2 2 . 8 2 6 . 8 0 . 1 9 2 0 0 6 9 . 5 1 . 44 6 4 . 4 5 8 6 5 3 . 2 4 2 1 0 . 2 0 . 8 4 3 . 1 5 0 . 0 8 1 1 3 . 8 0 . 6 4 . 7 6 3 3 . 3 % AS - 8 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 2 0 1 . 9 6 7 5 . 3 0 . 1 4 9 0 0 2 0 . 9 0 . 43 5 2 . 5 5 1 2 7 . 6 1 . 3 7 7 9 . 5 9 0 . 7 8 9 0 0 1 3 . 9 0 . 6 0 4 2 . 7 7 4 . 1 % BG - 1 D G r o u n d w a t e r 4 / 4 / 2 0 1 6 1 2 . 1 0 . 4 0 3 6 0 . 3 0 . 9 8 9 5 . 9 0 . 1 6 6 0 . 2 2 0 . 00 4 1 0 6 2 . 2 0 6 3 . 7 6 8 3 6 . 1 1 . 8 1 1 . 2 0 . 9 2 2 4 . 9 0 . 1 2 5 2 9 . 3 1 . 2 7 4 4 . 1 2 1 4 . 5 % BG - 5 D G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 1 1 6 1 . 9 0 2 6 . 2 0 . 1 7 5 0 . 2 4 0 . 0 0 4 34 . 1 0 . 7 1 2 . 7 9 1 2 5 1 . 2 4 7 1 4 . 7 1 . 2 1 0 0 1 7 . 8 0 . 7 7 4 3 . 2 3 1 7 . 3 % BG - 5 D G r o u n d w a t e r 4 / 4 / 2 0 1 6 0 0 1 1 6 1 . 9 0 2 6 . 2 0 . 1 7 5 0 . 2 4 0 . 0 0 4 34 . 1 0 . 7 1 2 . 7 9 1 2 5 1 . 2 4 7 1 4 . 7 1 . 2 1 0 0 1 7 . 8 0 . 7 7 4 3 . 2 3 1 7 . 3 % BG - 5 S G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 7 3 . 6 1 . 2 0 7 6 . 7 0 . 1 8 9 0 . 4 6 0 . 0 0 7 33 . 6 0 . 6 9 9 2 . 1 0 2 1 6 . 8 0 . 8 3 8 1 1 . 4 0 . 9 3 8 0 0 1 7 0 . 7 3 9 2 . 5 1 5 8 . 9 % GW A - 1 0 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 6 8 1 . 1 1 5 9 . 3 0 . 2 6 2 0 . 2 4 0 . 0 0 4 6 1 . 2 1 . 2 7 4 2 . 6 5 5 2 2 . 9 1 . 1 4 2 1 2 . 5 1 . 0 2 9 0 0 1 5 . 6 0 . 6 7 8 2 . 8 4 9 3 . 5 % GW A - 1 1 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 7 6 2 . 8 8 5 1 1 . 2 0 . 3 1 5 0 0 4 0 . 5 0 .8 4 3 4 . 0 4 3 5 0 . 5 2 . 5 1 9 1 7 . 1 1 . 4 0 7 0 0 1 6 . 6 0 . 7 2 2 4 . 6 4 8 7 . 0 % GW A - 1 1 S G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 2 5 . 1 0 . 4 1 1 1 0 . 4 0 . 2 9 3 0 . 3 1 0 . 0 0 5 4. 7 0 . 0 9 8 0 . 8 0 7 5 . 4 7 0 . 2 7 3 2 . 8 0 . 2 3 0 0 9 . 5 3 0 . 4 1 4 0 . 9 1 7 6 . 4 % GW A - 1 2 D G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 2 0 1 3 . 2 9 5 4 0 . 1 1 3 0 . 1 0 . 0 0 2 1 9 . 6 0 . 4 0 8 3 . 8 1 8 5 0 . 9 2 . 5 3 9 1 7 . 8 1 . 4 6 5 0 0 9 . 6 9 0 . 4 2 1 4 . 4 2 5 7 . 4 % GW A - 1 2 S G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 9 . 7 0 . 1 5 9 3 . 3 0 . 0 9 3 1 . 5 0 . 0 2 4 24 . 9 0 . 5 1 8 0 . 7 9 4 6 . 7 6 0 . 3 3 7 4 . 1 6 0 . 3 4 2 0 0 5 . 7 2 0 . 2 4 9 0 . 9 2 8 7 . 8 % GW A - 1 4 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 5 7 2 . 5 7 4 1 2 . 1 0 . 3 4 1 0 . 0 2 1 0 10 6 2 . 2 0 6 5 . 1 2 1 7 8 . 2 3 . 9 8 . 1 5 0 . 6 7 1 0 0 2 1 . 9 0 . 9 5 2 5 . 5 2 3 3 . 8 % GW A - 1 4 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 4 5 . 4 0 . 7 4 4 5 . 5 0 . 1 5 5 0 . 1 2 0 . 0 0 2 2 1 . 9 0 . 4 5 6 1 . 3 5 7 8 . 9 7 0 . 4 4 7 4 . 7 8 0 . 3 9 3 0 0 9 . 5 3 0 . 4 1 4 1 . 2 5 4 - 3 . 9 % GW A - 1 4 S G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 4 5 . 4 0 . 7 4 4 5 . 5 0 . 1 5 5 0 . 1 2 0 . 0 0 2 2 1 . 9 0 . 4 5 6 1 . 3 5 7 8 . 9 7 0 . 4 4 7 4 . 7 8 0 . 3 9 3 0 0 9 . 5 3 0 . 4 1 4 1 . 2 5 4 - 3 . 9 % GW A - 1 5 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 1 8 1 . 9 3 4 1 0 . 5 0 . 2 9 6 0 . 0 3 6 0 . 0 0 1 14 8 3 . 0 8 5 . 3 1 1 7 2 3 . 5 9 1 1 5 1 . 2 3 5 4 . 3 1 0 . 1 1 1 7 0 . 7 3 9 5 . 6 7 5 3 . 3 % GW A - 1 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 2 1 9 7 . 3 0 0 3 . 6 0 . 1 0 1 0 0 2 0 0. 4 1 6 7 . 8 1 7 1 4 0 . 6 9 8 0 0 2 0 9 5 . 3 4 5 6 3 2 . 7 3 9 8 . 7 8 2 5 . 8 % GW A - 1 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 5 5 . 8 0 . 9 1 5 2 0 . 0 5 6 0 . 0 3 0 3 . 2 0. 0 6 7 1 . 0 3 8 2 . 9 6 0 . 1 4 8 3 . 7 6 0 . 3 0 9 0 0 1 6 . 5 0 . 7 1 7 1 . 1 7 4 6 . 1 % GW A - 4 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 4 1 . 8 0 . 6 8 5 1 2 . 1 0 . 3 4 1 0 0 4 2 . 5 0 .8 8 4 1 . 9 1 1 5 . 5 0 . 7 7 3 6 . 3 3 0 . 5 2 1 0 0 1 8 . 1 0 . 7 8 7 2 . 0 8 1 4 . 3 % GW A - 4 S G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 5 0 . 4 0 . 8 2 6 7 . 9 0 . 2 2 3 0 0 4 7 0 . 9 7 8 2. 0 2 7 2 1 . 2 1 . 0 5 7 5 . 5 6 0 . 4 5 8 4 . 1 3 0 . 1 0 6 1 4 . 1 0 . 6 1 3 2 . 2 3 4 4 . 9 % GW A - 5 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 6 5 2 . 7 0 5 1 7 . 6 0 . 4 9 6 0 0 4 1 9 8. 7 2 1 1 . 9 2 1 1 8 4 9 . 1 7 7 2 4 . 5 2 . 0 1 6 0 0 1 9 . 8 0 . 8 6 1 1 2 . 0 5 4 0 . 6 % GW A - 6 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 2 1 1 . 9 8 4 1 8 . 1 0 . 5 1 0 0 6 1 1 . 2 7 3 . 7 6 4 4 0 . 1 2 1 1 0 . 9 0 5 0 0 2 7 1 . 1 7 4 4 . 0 7 9 4 . 0 % GW A - 6 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 2 4 8 4 . 0 6 6 1 4 . 9 0 . 4 2 0 0 1 0 . 4 0 . 2 1 6 4. 7 0 2 6 9 . 6 3 . 4 7 1 9 . 8 7 0 . 8 1 2 8 . 0 3 0 . 2 0 5 2 3 . 2 1 . 0 0 9 5 . 4 9 7 7 . 8 % GW A - 7 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 5 1 . 2 0 . 8 3 9 3 0 . 0 8 5 0 0 1 0 6 2. 2 0 6 3 . 1 3 2 5 . 2 1 . 2 5 7 1 3 1 . 0 7 0 0 2 2 . 3 0 . 9 7 3 . 2 9 7 2 . 6 % 12 . 1 5 3 9 . 1 2 3 1 61 3 5 . 5 6 2 4 8 . 0 5 2 0 . 0 5 Charge Balance (%) 60 6 1 3 5 . 5 6 2 9 6 . 1 4 0 . 1 2 4 . 3 3 9 . 1 2 3 21 1 1 2 2 An i o n s Cations Al k a l i n i t y , C O 3 A l k a l i n i t y , H C O 3 C h l o r i d e Ni t r o g e n , N O 2 pl u s N O 3 Su l f a t e Su m o f An i o n s Ca l c i u m M a g n e s i u m P o t a s s i u m S o d i u m Sum of Cations 21 30 Pa g e  1  of  2 Dan  River  Steam  Station CSA  Supplement  2 Ta b l e  3 ‐5:  Su m m a r y  of  Ca t i o n ‐An i o n  Ba l a n c e  Di f f e r e n c e s Co n s t i t u e n t : Mo l e c u l a r W e i g h t ( g / m o l ) Ch a r g e Eq u i v a l e n t W e i g h t : Si t e L o c a t i o n M a t r i x D a t e Re s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L eq / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L R e s u l t e q / L e q / L Ri v e r b e n d 12 . 1 5 3 9 . 1 2 3 1 61 3 5 . 5 6 2 4 8 . 0 5 2 0 . 0 5 Charge Balance (%) 60 6 1 3 5 . 5 6 2 9 6 . 1 4 0 . 1 2 4 . 3 3 9 . 1 2 3 21 1 1 2 2 An i o n s Cations Al k a l i n i t y , C O 3 A l k a l i n i t y , H C O 3 C h l o r i d e Ni t r o g e n , N O 2 pl u s N O 3 Su l f a t e Su m o f An i o n s Ca l c i u m M a g n e s i u m P o t a s s i u m S o d i u m Sum of Cations 21 30 GW A - 7 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 . 3 0 . 0 2 1 2 . 2 0 . 0 6 2 1 . 2 0 . 0 1 9 21 0 4 . 3 7 4 . 4 7 2 3 7 . 4 1 . 8 6 5 2 3 . 2 1 . 9 0 9 0 0 1 5 . 4 0 . 6 7 4 . 4 4 4 - 0 . 3 % GW A - 8 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 4 2 2 . 3 2 8 3 . 9 0 . 1 1 0 0 3 8 8 8. 0 7 5 1 0 . 5 1 3 1 2 5 6 . 2 3 4 3 1 . 3 2 . 5 7 6 0 0 5 3 . 8 2 . 3 3 9 1 1 . 1 4 9 2 . 9 % GW A - 8 S G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 7 5 . 3 1 . 2 3 4 5 . 7 0 . 1 6 1 0 . 0 2 6 0 17 6 3 . 6 6 3 5 . 0 5 8 2 7 . 2 1 . 3 5 7 2 0 1 . 6 4 6 0 0 5 5 . 1 2 . 3 9 6 5 . 3 9 9 3 . 3 % GW A - 9 D G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 2 4 . 7 0 . 4 0 5 3 . 1 0 . 0 8 7 0 0 7 . 1 0 .1 4 8 0 . 6 4 6 . 7 9 0 . 3 3 9 1 . 9 8 0 . 1 6 3 0 0 4 . 8 9 0 . 2 1 3 0 . 7 1 5 5 . 5 % GW A - 9 S G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 0 0 1 2 . 3 0 . 2 0 2 4 . 3 0 . 1 2 1 0 . 0 5 0 . 0 0 1 4 . 1 0 .0 8 5 0 . 4 0 9 1 . 0 5 0 . 0 5 2 0 . 5 3 7 0 . 0 4 4 3.25 0 . 0 8 3 7 . 1 5 0 . 3 1 1 0 . 4 9 9 . 0 % MW - 1 0 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 9 3 . 6 1 . 5 3 4 2 2 . 3 0 . 6 2 8 0 0 4 1 . 5 0 .8 6 4 3 . 0 2 6 3 3 . 8 1 . 6 8 6 1 0 . 6 0 . 8 7 2 0 0 1 7 . 3 0 . 7 5 2 3 . 3 1 4 . 5 % MW - 1 1 G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 * * N A * * N A * * N A * * N A * * N A 3 . 4 5 0 . 1 7 2 1 . 9 5 0 . 1 6 0 0 1 8 . 6 0 . 8 0 9 1 . 1 4 1 - - MW - 1 1 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 2 0 1 . 9 6 7 2 4 . 9 0 . 7 0 1 0 . 2 0 . 0 0 3 7 6 . 8 1 .5 9 8 4 . 2 6 9 6 5 . 1 3 . 2 4 7 7 . 9 9 0 . 6 5 8 3 . 9 1 0 . 1 1 4 . 2 0 . 6 1 7 4 . 6 2 2 4 . 0 % MW - 1 2 G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 8 . 6 0 . 1 4 1 4 . 9 0 . 1 3 8 0 0 8 . 4 0 .1 7 5 0 . 4 5 4 1 . 2 1 0 . 0 6 2 . 8 4 0 . 2 3 4 0 0 5 . 1 4 0 . 2 2 3 0 . 5 1 7 6 . 5 % MW - 1 2 D G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 7 5 1 . 2 3 9 . 8 0 . 2 7 6 0 0 2 9 0 . 6 0 4 2. 1 1 1 3 . 8 0 . 6 8 8 8 . 3 5 0 . 6 8 7 1 0 . 8 0 . 2 7 6 1 6 . 4 0 . 7 1 3 2 . 3 6 4 5 . 7 % MW - 2 2 B R G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 1 4 1 . 86 9 1 8 . 8 0 . 5 3 0 0 4 2 . 1 0 . 8 7 6 3 . 2 7 5 0 00 0 0 0 0 0 0 - 100.0% MW - 2 3 B R G r o u n d w a t e r 3 / 2 9 / 2 0 1 6 0 0 2 1 7 3 . 5 5 7 4. 2 0 . 1 1 8 0 0 1 1 . 3 0 . 2 3 5 3 . 9 1 5 7 . 1 2 . 84 8 2 0 . 1 1 . 6 5 4 0 0 1 3 . 9 0 . 6 0 4 5 . 1 0 6 1 3 . 3 % MW - 2 3 D G r o u n d w a t e r 3 / 2 9 / 2 0 1 6 0 0 2 3 . 1 0 . 3 7 9 2 . 7 0 . 0 7 6 0 0 2 0 . 3 0 .4 2 2 0 . 8 7 7 1 1 . 9 0 . 5 9 4 3 . 9 2 0 . 3 2 3 0 0 2 . 8 8 0 . 1 2 5 1 . 0 4 2 8 . 6 % MW - 3 0 8 B R G r o u n d w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 1 4 1 . 8 6 9 1 3 . 7 0 . 3 8 6 0 0 8 1 1 1 6 . 87 8 1 9 . 1 3 3 5 4 . 5 2 . 7 1 8 9 . 7 6 0 . 8 0 3 0 0 4 . 5 2 0 . 1 9 7 3 . 7 1 8 - 6 7 . 5 % MW - 3 1 0 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 5 9 2 . 6 0 7 15 . 2 0 . 4 2 8 0 0 5 . 8 0 . 1 2 1 3 . 1 5 6 4 2 . 7 2 . 1 3 1 1 . 4 0 . 9 3 8 0 0 1 2 . 4 0 . 5 3 9 3 . 6 0 7 6 . 7 % MW - 3 1 1 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 9 2 3 . 1 4 8 23 . 7 0 . 6 6 8 0 0 4 6 . 9 0 . 9 7 6 4 . 7 9 2 6 0 . 1 2 . 9 9 8 12 . 2 1 . 0 0 4 3 8 . 8 0 . 9 9 2 2 5 1 . 0 8 7 6 . 0 8 1 1 1 . 9 % MW - 3 1 4 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 8 4 . 8 1 . 3 9 2 7 . 9 0 . 7 8 6 0 0 8 0 1 . 66 5 3 . 8 4 1 4 8 . 2 2 . 4 0 4 1 2 . 7 1 . 0 4 5 6 . 1 9 0 . 1 5 8 1 3 . 4 0 . 5 8 3 4 . 1 9 4 . 3 % MW - 3 1 5 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 1 5 8 2 . 5 9 3. 1 0 . 0 8 7 0 0 4 4 . 9 0 . 9 3 4 3 . 6 1 1 5 7 . 2 2 . 85 3 9 . 6 3 0 . 7 9 3 0 0 1 2 . 9 0 . 5 6 1 4 . 2 0 7 7 . 6 % MW - 3 1 7 B R G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 1 9 2 6 . 4 9 6 . 8 1 . 58 7 5 . 6 0 . 1 5 8 0 0 1 2 . 1 0 . 2 5 2 8 . 3 9 7 7 8 . 6 3 . 9 2 0 .4 0 7 0 . 0 3 3 3 9 . 6 1 . 0 1 3 3 4 1 . 4 7 8 6 . 4 4 4 - 1 3 . 2 % MW - 3 1 8 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 5 5 . 2 0 . 9 0 5 8 . 1 0 . 2 2 8 0 0 1 0 3 2. 1 4 4 3 . 2 7 7 2 2 . 6 1 . 1 2 7 1 2 . 5 1 . 0 2 9 0 0 3 0 . 4 1 . 3 2 2 3 . 4 7 8 3 . 0 % MW - 9 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 2 7 . 8 0 . 4 5 6 1 8 . 6 0 . 5 2 4 0 0 9 7 . 6 2 .0 3 1 3 . 0 1 1 2 2 . 5 1 . 1 2 2 8 . 9 7 0 . 7 3 8 0 0 2 6 . 2 1 . 1 3 9 2 . 9 9 9 - 0 . 2 % OW - 3 0 8 D G r o u n d w a t e r 4 / 2 6 / 2 0 1 6 0 0 4 2 . 2 0 . 6 9 2 9 . 2 0 . 2 5 9 0 0 1 0 8 2 . 2 4 8 3. 1 9 9 2 5 . 5 1 . 2 7 2 1 0 . 3 0 . 8 4 8 7 . 6 5 0 . 1 9 6 1 6 0 . 6 9 6 3 . 0 1 2 - 3 . 0 % AB - 1 0 S P o r e w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 1 2 1 . 8 3 6 1 3 . 1 0 . 3 6 9 0 0 2 8 . 3 0 . 5 8 9 2. 7 9 4 2 9 . 3 1 . 4 6 1 6 . 8 4 0 . 5 6 3 6 . 6 1 0 . 1 6 9 1 8 . 7 0 . 8 1 3 3 . 0 0 6 3 . 7 % AB - 1 0 S L P o r e w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 6 6 2 . 7 2 1 2 0 0 . 56 3 0 . 2 4 0 . 0 0 4 3 7 . 9 0 . 7 8 9 4 . 0 7 7 2 3 . 6 1 . 1 7 7 8 . 32 0 . 6 8 5 2 5 . 6 0 . 6 5 5 4 9 . 7 2 . 1 6 1 4 . 6 7 8 6 . 9 % AB - 2 5 S P o r e w a t e r 4 / 2 5 / 2 0 1 6 0 0 1 0 7 1 . 7 5 4 1 5 . 2 0 . 4 2 8 0 . 0 4 2 0 . 0 0 1 6 8 . 7 1 .4 3 3 . 6 1 3 3 9 . 1 1 . 9 5 6 . 9 0 . 5 6 8 7 . 2 1 0 . 1 8 4 2 9 . 5 1 . 2 8 3 3 . 9 8 5 4 . 9 % AB - 5 S P o r e w a t e r 4 / 2 5 / 2 0 1 6 0 0 6 0 . 2 0 . 9 8 7 9 . 9 0 . 2 7 9 0 0 1 5 2 3 . 1 6 3 4. 4 2 9 5 1 . 2 2 . 5 5 4 1 1 0 . 9 0 5 1 4 . 4 0 . 3 6 8 1 5 . 3 0 . 6 6 5 4 . 4 9 2 0 . 7 % * N O 2 + N O 3 i s b e i n g u s e d a s a s u r r o g a t e f o r n i t r a t e a n d t h e m o l e c u l a r w e i g h t o f n i t r a t e i s a s s u m e d . ** M W - 1 1 a n a l y s i s n o t p e r f o r m e d ; i n s u f f i c i e n t vo l u m e d u e t o s l o w g r o u n d w a t e r r e c h a r g e . Re s u l t s o f " 0 " a r e r e p o r t e d a s n o n - de t e c t s b y t h e a n a l y t i c a l l a b o r a t o r y . Da t a s e t c o n s i s t s o f a q u e o u s d a t a a s s o c i a t ed w i t h t h e f i r s t q u a r t e r o f 2 0 1 6 ( e v e n i f d a t e s d o n o t a l i g n t o t r a d i t i o n a l q u a r t e r s ) . Fo r m u l a s : eq / L ൌ ோ௘ ௦ ௨ ௟ ௧ ௏ ௔ ௟ ௨ ௘ ሺ ೘೒ ಽ ሻ ಾ೚ ೗ ೐ ೎ ೠ ೗ ೌ ೝ ೈ ೟ . ሺ ೒ ೘೚ ೗ ሻ ಴೓ ೌ ೝ ೒ ೐ ܥܤ ܧ % ൌ ∑ ஼௔ ௧ ௜ ௢ ௡ ௦ ሺ ೐೜ ಽ ሻ ି ∑ ஺௡ ௜ ௢ ௡ ௦ ሺ ೐೜ ಽ ሻ ∑ ஼௔ ௧ ௜ ௢ ௡ ௦ ሺ ೐೜ ಽ ሻା ∑ ஺௡ ௜ ௢ ௡ ௦ ሺ ೐೜ ಽ ሻ x 1 0 0 ܧݍ ݑ ݅ ݒ ܽ ݈ ݁ ݊ ݐ ܹ ݁ ݅ ݃ ݄ ݐ ൌ ܯ݋ ݈ ݁ ܿ ݑ ݈ ܽ ݎ ܹ ݁ ݅ ݃ ݄ ݐ ሺ ݃ ݉݋ ݈ ሻ ܥ݄ ܽ ݎ ݃ ݁ Pa g e  2  of  2 Dan  River  Steam  Station CSA  Supplement  2