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HomeMy WebLinkAboutNC0004961_3_FINAL_CSA Sup 2_Tables_20160826Ta 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 ‐1D D e e p 5 9 5 0 3 1 . 0 1 1 4 1 5 4 9 8 . 7 8 7 1 9 . 3 1 ‐0. 1 7 PV C 5 . 0 0 19 3 . 0 0 1 9 8 . 0 0 2 0 9 . 8 1 C A M A AB ‐1S S h a l l o w 5 9 5 0 2 4 . 0 3 1 4 1 5 5 0 2 . 3 7 7 1 9 . 3 0 ‐0. 2 5 PV C 2 . 0 0 29 . 0 0 4 4 . 0 0 6 9 . 6 8 C A M A AB ‐2D D e e p 5 9 4 5 8 8 . 4 2 1 4 1 5 6 7 4 . 9 7 7 1 9 . 3 3 ‐0. 2 2 PV C 5 . 0 0 15 1 . 0 0 1 5 6 . 0 0 2 0 9 . 0 0 C A M A AB ‐2S S h a l l o w 5 9 4 5 9 7 . 3 0 1 4 1 5 6 7 1 . 7 8 7 1 9 . 2 8 ‐0. 2 0 PV C 2 . 0 0 50 . 0 0 6 5 . 0 0 7 5 . 0 4 C A M A AB ‐3B R B e d r o c k 5 9 3 9 7 8 . 5 2 1 4 1 5 2 7 1 . 0 6 7 2 7 . 8 1 ‐0. 5 7 PV C 5 . 0 0 20 6 . 0 0 2 1 1 . 0 0 2 2 4 . 0 3 C A M A AB ‐3D D e e p 5 9 3 9 7 4 . 7 2 1 4 1 5 2 7 5 . 7 6 7 2 7 . 7 2 ‐0. 5 9 PV C 5 . 0 0 17 3 . 0 0 1 7 8 . 0 0 1 8 7 . 0 7 C A M A AB ‐3S S h a l l o w 5 9 3 9 8 2 . 2 1 1 4 1 5 2 6 7 . 1 5 7 2 7 . 7 8 ‐0. 5 7 PV C 2 . 0 0 13 . 0 0 2 8 . 0 0 7 2 . 4 8 C A M A AB ‐4D D e e p 5 9 4 3 9 6 . 8 4 1 4 1 4 8 5 5 . 0 6 7 2 8 . 3 3 ‐0. 4 3 PV C 5 . 0 0 19 8 . 5 0 2 0 3 . 5 0 2 0 9 . 1 7 C A M A AB ‐4S S h a l l o w 5 9 4 3 9 3 . 6 1 1 4 1 4 8 5 7 . 3 6 7 2 8 . 2 7 ‐0. 5 0 PV C 2 . 0 0 15 . 0 0 3 0 . 0 0 5 4 . 5 8 C A M A AB ‐5D D e e p 5 9 3 7 0 9 . 7 6 1 4 1 4 2 8 0 . 2 8 7 2 4 . 4 6 3 . 1 2 PV C 5 . 0 0 15 4 . 0 0 1 5 9 . 0 0 1 7 2 . 1 3 C A M A AB ‐5S S h a l l o w 5 9 3 7 1 0 . 5 2 1 4 1 4 2 7 4 . 0 0 7 2 4 . 4 8 3 . 1 2 PV C 2 . 0 0 9. 0 0 2 4 . 0 0 2 9 . 1 1 C A M A AB ‐5S L S h a l l o w 5 9 3 7 1 1 . 2 5 1 4 1 4 2 6 9 . 2 3 7 2 4 . 4 9 3 . 0 6 PV C 2 . 0 0 47 . 0 0 5 7 . 0 0 7 1 . 0 5 C A M A AB ‐6B R U D e e p 5 9 3 7 2 4 . 3 9 1 4 1 4 1 2 7 . 5 3 7 2 8 . 5 1 ‐0. 3 0 PV C 5 . 0 0 16 9 . 0 0 1 7 4 . 0 0 1 7 9 . 7 6 C A M A AB ‐6S S h a l l o w 5 9 3 7 1 8 . 4 2 1 4 1 4 1 2 9 . 0 8 7 2 8 . 4 3 ‐0. 3 0 PV C 2 . 0 0 50 . 0 0 6 5 . 0 0 7 4 . 6 1 C A M A AB ‐7D D e e p 5 9 3 0 6 8 . 7 2 1 4 1 5 0 4 5 . 6 6 7 2 9 . 6 8 2 . 8 4 PV C 5 . 0 0 14 2 . 0 0 1 4 7 . 0 0 2 1 1 . 6 8 C A M A AB ‐7I I n t e r m e d i a t e 5 9 3 0 5 4 . 5 0 1 4 1 5 0 4 6 . 0 3 7 2 9 . 4 7 2 . 8 4 PV C 2 . 0 0 70 . 0 0 8 5 . 0 0 9 5 . 9 7 C A M A AB ‐7S S h a l l o w 5 9 3 0 4 7 . 8 6 1 4 1 5 0 4 6 . 8 6 7 2 9 . 3 7 2 . 5 3 PV C 2 . 0 0 5. 0 0 2 0 . 0 0 3 4 . 3 7 C A M A AB ‐8D D e e p 5 9 3 2 9 5 . 4 4 1 4 1 3 8 8 7 . 2 0 6 8 2 . 4 6 3 . 2 1 PV C 5 . 0 0 91 . 0 0 9 6 . 0 0 1 0 5 . 7 6 C A M A AB ‐8S S h a l l o w 5 9 3 2 9 8 . 5 3 1 4 1 3 8 7 6 . 2 7 6 8 1 . 6 5 2 . 8 7 PV C 2 . 0 0 13 . 0 0 2 8 . 0 0 4 2 . 2 5 C A M A AS ‐1D D e e p 5 9 2 4 9 8 . 8 3 1 4 1 3 1 8 8 . 1 8 7 6 6 . 9 3 2 . 9 7 PV C 6 . 0 0 17 1 . 0 0 1 7 6 . 0 0 1 8 5 . 9 6 C A M A AS ‐1S S h a l l o w 5 9 2 5 1 3 . 5 8 1 4 1 3 2 0 5 . 2 8 7 6 7 . 4 4 2 . 9 6 PV C 2 . 0 0 81 . 0 0 9 6 . 0 0 1 0 2 . 4 4 C A M A AS ‐2D D e e p 5 9 2 6 0 0 . 9 4 1 4 1 3 7 5 7 . 5 1 7 7 6 . 9 6 2 . 9 7 PV C 4 . 0 0 18 5 . 0 0 1 9 0 . 0 0 2 1 4 . 7 7 C A M A AS ‐2S S h a l l o w 5 9 2 6 1 7 . 9 9 1 4 1 3 7 6 0 . 4 3 7 7 6 . 8 5 2 . 6 7 PV C 2 . 0 0 74 . 0 0 8 9 . 0 0 9 4 . 6 7 C A M A AS ‐3D D e e p 5 9 2 6 5 6 . 9 5 1 4 1 4 3 1 0 . 7 1 7 7 8 . 5 8 2 . 6 9 PV C 5 . 0 0 13 9 . 0 0 1 4 4 . 0 0 1 5 0 . 8 8 C A M A AS ‐3S S h a l l o w 5 9 2 6 3 7 . 1 8 1 4 1 4 3 1 2 . 3 3 7 7 8 . 5 2 2 . 8 3 PV C 2 . 0 0 58 . 8 0 7 3 . 8 0 9 2 . 5 2 C A M A BG ‐1D D e e p 5 9 2 5 8 1 . 7 6 1 4 1 7 0 6 4 . 2 3 7 0 4 . 4 6 3 . 3 4 PV C 6 . 0 0 19 4 . 2 0 1 9 9 . 2 0 2 0 7 . 1 8 C A M A BG ‐1S S h a l l o w 5 9 2 5 7 8 . 5 4 1 4 1 7 0 6 7 . 6 8 7 0 4 . 2 2 3 . 0 2 PV C 2 . 0 0 29 . 7 0 4 4 . 7 0 4 7 . 9 4 C A M A BG ‐2B R B e d r o c k 5 9 3 2 7 1 . 8 6 1 4 1 7 2 5 0 . 7 8 7 0 5 . 7 3 3 . 0 2 PV C 6 . 0 0 20 3 . 0 0 2 0 8 . 0 0 2 1 6 . 5 7 C A M A BG ‐2D D e e p 5 9 3 2 8 0 . 7 6 1 4 1 7 2 5 0 . 7 0 7 0 5 . 3 6 3 . 0 2 PV C 6 . 0 0 15 5 . 0 0 1 6 0 . 0 0 1 7 2 . 7 8 C A M A BG ‐2S S h a l l o w 5 9 3 2 7 7 . 8 6 1 4 1 7 2 5 7 . 9 9 7 0 5 . 4 8 2 . 9 8 PV C 2 . 0 0 49 . 0 0 6 5 . 0 0 7 3 . 1 1 C A M A BG ‐3D D e e p 5 9 3 8 8 0 . 1 6 1 4 1 7 2 5 7 . 6 3 6 7 4 . 6 8 2 . 1 0 PV C 6 . 0 0 10 0 . 0 0 1 0 5 . 0 0 1 1 3 . 7 5 C A M A BG ‐3S S h a l l o w 5 9 3 8 8 7 . 1 3 1 4 1 7 2 5 9 . 3 5 6 7 3 . 8 9 1 . 7 6 PV C 2 . 0 0 22 . 0 0 3 7 . 0 0 3 9 . 1 7 C A M A BG ‐4B R B e d r o c k 5 9 1 5 3 7 . 3 8 1 4 1 2 4 3 2 . 4 0 7 0 8 . 9 1 2 . 7 9 PV C 5. 0 0 1 6 7 . 7 9 1 7 2 . 7 9 1 7 3 . 7 9 C A M A BG ‐4D D e e p 5 9 1 5 2 9 . 9 3 1 4 1 2 4 4 1 . 2 0 7 0 8 . 3 3 2 . 7 4 PV C 6 . 0 0 1 3 0 . 7 4 14 0 . 7 4 1 4 1 . 7 4 C A M A BG ‐4S S h a l l o w 5 9 1 5 2 6 . 4 1 1 4 1 2 4 3 5 . 1 7 7 0 7 . 9 7 2 . 6 2 PV C 2. 0 0 52 . 6 2 67 . 6 2 7 2 . 6 2 C A M A BG ‐5B R B e d r o c k 5 9 1 0 3 0 . 3 1 1 4 1 0 1 0 8 . 2 0 7 1 9 . 2 4 2 . 7 4 PV C 6 . 0 0 1 3 0 . 7 4 13 5 . 7 4 1 3 8 . 7 4 C A M A BG ‐5D D e e p 5 9 1 0 2 6 . 4 9 1 4 1 0 1 1 7 . 0 7 7 1 9 . 2 3 2 . 7 8 PV C 6 . 0 0 1 0 0 . 7 8 10 5 . 7 8 1 0 6 . 7 8 C A M A C ‐1B R U D e e p 5 9 3 0 9 7 . 4 8 1 4 1 2 8 1 5 . 0 4 6 6 2 . 2 3 2 . 9 8 PV C 5 . 0 0 11 5 . 0 0 1 2 0 . 0 0 1 2 9 . 9 8 C A M A C ‐1S S h a l l o w 5 9 3 0 8 4 . 9 2 1 4 1 2 8 0 7 . 5 5 6 6 3 . 0 0 2 . 8 8 PV C 2 . 0 0 5. 0 0 1 5 . 0 0 1 9 . 8 8 C A M A Pa g e  1  of  4 Riverbend  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 C ‐2D D e e p 5 9 2 9 7 4 . 0 8 1 4 1 3 1 5 1 . 0 6 6 8 4 . 5 3 2 . 9 2 PV C 5 . 0 0 13 3 . 0 0 1 3 8 . 0 0 1 5 5 . 0 1 C A M A C ‐2S S h a l l o w 5 9 2 9 6 8 . 4 4 1 4 1 3 1 7 0 . 2 2 6 8 4 . 2 9 3 . 0 0 PV C 2 . 0 0 18 . 0 0 3 3 . 0 0 4 0 . 0 4 C A M A GW A ‐10 B R U D e e p 5 9 5 7 5 5 . 1 6 1 4 1 5 0 3 8 . 6 7 6 5 7 . 5 7 3 . 0 6 PV C 5 . 0 0 13 3 . 5 0 1 3 8 . 5 0 1 4 9 . 7 6 C A M A GW A ‐10 S S h a l l o w 5 9 5 7 4 3 . 1 5 1 4 1 5 0 4 7 . 4 7 6 5 8 . 7 1 3 . 1 3 PV C 2 . 0 0 7. 5 0 2 2 . 5 0 2 6 . 4 4 C A M A GW A ‐11 D D e e p 5 9 3 1 0 9 . 7 7 1 4 1 2 0 7 5 . 9 8 6 7 2 . 8 1 3 . 0 9 PV C 5 . 0 0 1 1 2 . 0 9 11 7 . 0 9 1 1 8 . 0 9 C A M A GW A ‐11 S S h a l l o w 5 9 3 1 0 5 . 9 0 1 4 1 2 0 8 7 . 8 3 6 7 1 . 2 7 3 . 0 7 PV C 2. 0 0 19 . 0 7 34 . 0 7 3 5 . 0 7 C A M A GW A ‐12 D D e e p 5 9 2 6 5 2 . 0 5 1 4 1 2 3 9 4 . 9 0 6 8 5 . 9 7 3 . 6 0 PV C 6 . 0 0 1 3 3 . 6 0 13 8 . 6 0 1 4 1 . 6 0 C A M A GW A ‐12 S S h a l l o w 5 9 2 6 6 2 . 9 6 1 4 1 2 3 9 5 . 1 2 6 8 5 . 1 5 3 . 1 4 PV C 2. 0 0 18 . 1 5 33 . 1 5 3 5 . 1 5 C A M A GW A ‐13 D D e e p 5 9 1 9 9 5 . 4 7 1 4 1 3 5 6 2 . 7 4 7 4 4 . 7 8 ‐0. 3 4 PV C 1 0 . 0 0 2 7 6 . 6 6 28 1 . 6 6 2 8 6 . 6 6 C A M A GW A ‐13 S S h a l l o w 5 9 1 9 9 5 . 7 1 1 4 1 3 5 5 0 . 8 2 7 4 4 . 4 0 ‐0. 3 7 PV C 2. 0 0 4 4 . 4 4 5 9 . 4 4 6 1 . 6 4 C A M A GW A ‐14 D D e e p 5 9 2 5 3 3 . 8 9 1 4 1 5 6 0 4 . 1 3 7 7 9 . 2 5 2 . 7 5 PV C 6 . 0 0 20 5 . 7 5 2 1 0 . 7 5 2 1 3 . 7 5 C A M A GW A ‐14 S S h a l l o w 5 9 2 5 3 0 . 3 7 1 4 1 5 5 9 8 . 1 0 7 7 9 . 5 0 3 . 2 2 PV C 2. 0 0 3. 2 2 3. 2 2 3 . 2 2 C A M A GW A ‐1B R U D e e p 5 9 5 5 0 2 . 8 2 1 4 1 4 3 6 6 . 6 3 6 9 6 . 4 7 3 . 1 0 PV C 5 . 0 0 72 . 0 0 7 7 . 0 0 8 4 . 6 2 C A M A GW A ‐1S S h a l l o w 5 9 5 5 1 0 . 0 9 1 4 1 4 3 7 4 . 7 8 6 9 6 . 2 3 3 . 2 4 PV C 2 . 0 0 28 . 0 0 4 3 . 0 0 5 2 . 0 1 C A M A GW A ‐20 B R B e d r o c k 5 9 2 2 0 6 . 0 5 1 4 1 3 5 5 4 . 5 1 7 3 8 . 3 5 ‐0. 4 1 PV C 6 . 0 0 30 0 . 6 0 3 0 5 . 6 0 3 1 1 . 1 5 C A M A GW A ‐20 D D e e p 5 9 2 2 0 8 . 3 9 1 4 1 3 5 3 3 . 6 3 7 3 7 . 2 5 ‐0. 3 6 PV C 6 . 0 0 25 3 . 0 0 2 5 8 . 0 0 2 5 8 . 4 6 C A M A GW A ‐20 S S h a l l o w 5 9 2 2 0 4 . 0 2 1 4 1 3 5 6 8 . 4 3 7 3 9 . 0 5 ‐0. 4 7 PV C 2 . 0 0 37 . 0 0 5 3 . 0 0 5 6 . 6 7 C A M A GW A ‐21 B R B e d r o c k 5 9 2 0 4 4 . 7 2 1 4 1 3 9 8 8 . 3 0 N M N M PV C 6 . 0 0 NM N M N M C A M A GW A ‐21 D D e e p 5 9 2 0 4 7 . 5 4 1 4 1 3 9 8 5 . 9 7 N M N M PV C 6 . 0 0 NM N M N M C A M A GW A ‐21 S S h a l l o w 5 9 2 0 3 9 . 0 9 1 4 1 3 9 9 3 . 1 1 N M N M PV C 2 . 0 0 NM N M N M C A M A GW A ‐22 B R ‐A B e d r o c k 5 9 2 2 5 7 . 0 1 1 4 1 4 0 2 6 . 6 9 7 6 3 . 7 8 3 . 0 7 PV C 5 . 0 0 26 9 . 0 0 2 7 4 . 0 0 3 0 4 . 4 3 C A M A GW A ‐22 D D e e p 5 9 2 2 5 7 . 6 8 1 4 1 4 0 0 8 . 7 3 7 6 1 . 9 4 3 . 2 4 PV C 5 . 0 0 19 8 . 0 0 2 0 3 . 0 0 2 1 6 . 6 2 C A M A GW A ‐22 S S h a l l o w 5 9 2 2 5 5 . 5 8 1 4 1 4 0 1 5 . 3 6 7 6 2 . 5 1 3 . 0 5 PV C 2 . 0 0 40 . 0 0 5 5 . 0 0 6 1 . 4 7 C A M A GW A ‐23 B R B e d r o c k 5 9 2 2 6 9 . 3 5 1 4 1 3 8 4 2 . 8 7 7 4 6 . 2 3 2 . 6 5 PV C 5 . 0 0 28 5 . 0 0 2 9 0 . 0 0 3 0 5 . 5 0 C A M A GW A ‐23 D D e e p 5 9 2 2 7 2 . 7 9 1 4 1 3 8 4 1 . 0 8 7 4 5 . 9 4 2 . 7 4 PV C 5 . 0 0 22 1 . 0 0 2 2 6 . 0 0 2 2 9 . 8 7 C A M A GW A ‐23 S S h a l l o w 5 9 2 2 7 6 . 8 2 1 4 1 3 8 4 0 . 9 4 7 4 5 . 9 1 2 . 4 7 PV C 2 . 0 0 33 . 0 0 4 8 . 0 0 5 2 . 5 6 C A M A GW A ‐2B R B e d r o c k 5 9 4 3 9 7 . 3 4 1 4 1 3 8 3 7 . 0 3 6 8 9 . 8 2 3 . 2 5 PV C 5 . 0 0 11 5 . 0 0 1 2 0 . 0 0 1 2 8 . 2 5 C A M A GW A ‐2B R U D e e p 5 9 4 3 9 8 . 4 2 1 4 1 3 8 4 0 . 8 5 6 8 9 . 8 5 3 . 0 6 PV C 5 . 0 0 77 . 0 0 8 2 . 0 0 9 4 . 0 6 C A M A GW A ‐2S S h a l l o w 5 9 4 3 8 8 . 3 0 1 4 1 3 8 3 9 . 3 1 6 8 9 . 8 8 3 . 3 2 PV C 2 . 0 0 35 . 0 0 5 0 . 0 0 5 6 . 3 2 C A M A GW A ‐3D D e e p 5 9 3 3 5 8 . 7 8 1 4 1 2 3 3 8 . 9 3 6 7 7 . 0 8 3 . 1 2 PV C 5 . 0 0 42 . 0 0 4 7 . 0 0 5 8 . 1 2 C A M A GW A ‐3S S h a l l o w 5 9 3 3 6 1 . 1 5 1 4 1 2 3 4 2 . 5 9 6 7 7 . 0 8 2 . 9 5 PV C 2 . 0 0 18 . 0 0 2 8 . 0 0 1 2 . 9 9 C A M A GW A ‐3S A S h a l l o w 5 9 3 3 6 7 . 9 4 1 4 1 2 3 3 9 . 1 4 6 7 7 . 0 5 2 . 7 1 PV C 2 . 0 0 23 . 0 0 3 9 . 0 0 4 2 . 2 1 C A M A GW A ‐4B R B e d r o c k 5 9 2 2 2 3 . 5 4 1 4 1 2 7 4 7 . 7 4 6 9 5 . 8 9 2 . 9 6 PV C 4 . 0 0 15 9 . 0 0 1 6 4 . 0 0 1 7 7 . 3 9 C A M A GW A ‐4D D e e p 5 9 2 2 0 3 . 2 6 1 4 1 2 7 4 5 . 4 3 6 9 6 . 5 6 2 . 8 8 PV C 6 . 0 0 12 0 . 0 0 1 2 5 . 0 0 1 2 9 . 1 4 C A M A GW A ‐4S S h a l l o w 5 9 2 2 1 2 . 4 0 1 4 1 2 7 4 6 . 6 6 6 9 6 . 3 5 2 . 9 5 PV C 2 . 0 0 17 . 0 0 3 2 . 0 0 3 9 . 2 6 C A M A GW A ‐5D D e e p 5 9 2 4 0 3 . 0 1 1 4 1 4 8 8 3 . 7 1 7 8 7 . 6 3 3 . 1 9 PV C 5 . 0 0 21 2 . 0 0 2 1 7 . 0 0 2 4 0 . 1 9 C A M A GW A ‐5S S h a l l o w 5 9 2 4 0 5 . 6 4 1 4 1 4 8 8 9 . 8 2 7 8 7 . 9 5 3 . 1 0 PV C 2 . 0 0 60 . 0 0 7 5 . 0 0 7 9 . 1 0 C A M A GW A ‐6D D e e p 5 9 2 7 5 8 . 6 9 1 4 1 5 3 6 7 . 0 4 7 7 0 . 0 6 3 . 0 3 PV C 5 . 0 0 14 3 . 0 0 1 4 8 . 0 0 1 9 4 . 0 6 C A M A GW A ‐6S S h a l l o w 5 9 2 7 6 0 . 5 4 1 4 1 5 3 8 8 . 3 4 7 7 0 . 4 9 2 . 8 7 PV C 2 . 0 0 45 . 0 0 6 0 . 0 0 6 3 . 8 6 C A M A Pa g e  2  of  4 Riverbend  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 ‐7B R B e d r o c k 5 9 3 5 1 7 . 3 5 1 4 1 6 2 9 8 . 2 5 6 8 8 . 2 3 3 . 2 5 PV C 5 . 0 0 12 7 . 0 0 1 3 2 . 0 0 1 7 7 . 1 6 C A M A GW A ‐7D D e e p 5 9 3 5 0 4 . 0 7 1 4 1 6 2 9 9 . 0 1 6 8 9 . 1 5 3 . 2 6 PV C 5 . 0 0 10 0 . 0 0 1 0 5 . 0 0 1 3 2 . 7 6 C A M A GW A ‐7S S h a l l o w 5 9 3 5 0 5 . 4 0 1 4 1 6 2 9 3 . 4 9 6 8 9 . 2 4 3 . 1 7 PV C 2 . 0 0 5. 0 0 2 0 . 0 0 2 6 . 1 7 C A M A GW A ‐8D D e e p 5 9 4 1 4 3 . 0 8 1 4 1 6 1 0 6 . 7 8 6 8 9 . 0 0 3 . 3 5 PV C 5 . 0 0 11 1 . 0 0 1 1 6 . 0 0 1 2 4 . 9 1 C A M A GW A ‐8S S h a l l o w 5 9 4 1 4 0 . 0 1 1 4 1 6 1 0 4 . 7 1 6 8 9 . 2 4 3 . 2 3 PV C 2 . 0 0 8. 0 0 2 3 . 0 0 2 7 . 4 2 C A M A GW A ‐9B R B e d r o c k 5 9 4 6 1 4 . 1 7 1 4 1 5 9 6 8 . 7 6 6 5 4 . 2 6 2 . 7 7 PV C 6 . 0 0 10 6 . 0 0 1 1 1 . 0 0 1 2 2 . 9 3 C A M A GW A ‐9D D e e p 5 9 4 6 0 9 . 7 6 1 4 1 5 9 7 3 . 1 4 6 5 4 . 6 9 2 . 6 1 PV C 5 . 0 0 62 . 0 0 6 7 . 0 0 7 4 . 9 0 C A M A GW A ‐9S S h a l l o w 5 9 4 6 1 5 . 6 5 1 4 1 5 9 7 2 . 8 2 6 5 4 . 4 6 2 . 8 2 PV C 2 . 0 0 5. 0 0 1 5 . 0 0 1 9 . 9 0 C A M A MW ‐15 B R B e d r o c k 5 9 5 9 8 1 . 8 9 1 4 1 4 6 9 5 . 4 4 6 5 6 . 5 3 3 . 2 8 PV C 6 . 0 0 56 . 0 0 6 1 . 0 0 6 5 . 2 8 C A M A MW ‐15 D D e e p 5 9 5 9 7 3 . 5 6 1 4 1 4 6 9 3 . 6 3 6 5 6 . 6 9 3 . 3 0 PV C 5 . 0 0 39 . 0 0 4 4 . 0 0 5 7 . 3 0 C A M A MW ‐2S ‐A S h a l l o w 5 9 5 0 2 3 . 0 5 1 4 1 4 5 3 8 . 1 3 7 1 7 . 8 2 3 . 6 5 PV C 2. 0 0 44 . 6 5 59 . 6 5 6 3 . 6 5 C A M A MW ‐7B R B e d r o c k 5 9 2 7 9 7 . 3 9 1 4 1 5 8 5 5 . 5 5 7 6 5 . 8 0 3 . 1 4 PV C 5 . 0 0 19 6 . 0 0 2 0 1 . 0 0 2 4 3 . 3 1 C A M A MW ‐9B R B e d r o c k 5 9 3 4 7 7 . 4 9 1 4 1 3 2 7 8 . 0 0 6 5 1 . 6 4 2 . 8 9 PV C 6 . 0 0 14 7 . 0 0 1 5 2 . 0 0 1 9 9 . 2 0 C A M A MW ‐9D D e e p 5 9 3 4 9 0 . 3 0 1 4 1 3 2 6 5 . 9 0 6 5 1 . 4 8 2 . 9 8 PV C 6 . 0 0 10 1 . 0 0 1 0 6 . 0 0 1 2 5 . 9 9 C A M A OB ‐1 O b s e r v a t i o n 5 9 3 1 6 3 . 3 0 1 4 1 5 7 8 5 . 4 7 7 4 9 . 0 2 3 . 0 0 PV C 2 . 0 0 33 . 0 0 4 8 . 0 0 5 3 . 0 0 C A M A OB ‐2 O b s e r v a t i o n 5 9 3 1 4 1 . 8 7 1 4 1 6 3 0 1 . 3 6 7 2 3 . 1 0 2 . 9 9 PV C 2 . 0 0 39 . 0 0 5 4 . 0 0 5 8 . 9 9 C A M A MW ‐10 S h a l l o w 5 9 4 2 7 7 . 4 0 1 4 1 3 6 0 9 . 0 0 6 5 4 . 3 7 2 . 3 7 PV C 2. 0 0 8 . 3 7 2 3 . 3 7 2 3 . 3 7 N P D E S MW ‐11 D R D e e p 5 9 5 1 9 6 . 8 0 1 4 1 4 1 2 6 . 0 0 6 9 3 . 1 8 2 . 6 2 PV C 2. 0 0 4 0 . 6 0 4 5 . 6 0 4 5 . 6 0 N P D E S MW ‐11 S R S h a l l o w 5 9 5 1 9 5 . 8 0 1 4 1 4 1 3 0 . 0 0 6 9 3 . 3 0 2 . 8 0 PV C 2. 0 0 2 1 . 2 3 3 6 . 2 3 3 6 . 2 3 N P D E S MW ‐13 S h a l l o w 5 9 5 3 5 5 . 0 0 1 4 1 5 7 6 3 . 0 0 6 5 4 . 1 1 2 . 3 0 PV C 2. 0 0 7 . 4 5 2 2 . 4 5 2 2 . 4 5 N P D E S MW ‐14 S h a l l o w 5 9 4 3 3 8 . 8 0 1 4 1 6 3 6 4 . 0 0 6 6 2 . 8 4 1 . 8 9 PV C 2. 0 0 7 . 5 6 2 2 . 5 6 2 2 . 5 6 N P D E S MW ‐15 S h a l l o w 5 9 5 9 7 9 . 6 0 1 4 1 4 6 8 0 . 0 0 6 5 7 . 1 2 3 . 2 4 PV C 2. 0 0 9 . 8 2 2 4 . 8 2 2 4 . 8 2 N P D E S MW ‐7S R S h a l l o w 5 9 2 7 8 5 . 2 0 1 4 1 5 8 5 0 . 0 0 7 6 5 . 9 5 3 . 0 1 PV C 2. 0 0 4 9 . 9 3 6 9 . 9 3 6 9 . 9 3 N P D E S MW ‐8D D e e p 5 9 2 1 7 0 . 3 0 1 4 1 3 8 4 4 . 0 0 7 5 6 . 0 3 2 . 0 8 PV C 2. 0 0 1 6 0 . 9 7 1 7 0 . 9 7 1 7 0 . 9 7 N P D E S MW ‐8I S h a l l o w 5 9 2 1 7 9 . 3 0 1 4 1 3 8 5 0 . 0 0 7 5 4 . 7 4 2 . 2 5 PV C 2. 0 0 1 0 2 . 3 8 1 2 2 . 3 8 1 2 2 . 3 8 N P D E S MW ‐8S S h a l l o w 5 9 2 1 7 7 . 7 0 1 4 1 3 8 6 3 . 0 0 7 5 5 . 4 0 2 . 4 6 PV C 2. 0 0 3 9 . 9 5 5 9 . 9 5 5 9 . 9 5 N P D E S MW ‐9 S h a l l o w 5 9 3 4 8 5 . 5 0 1 4 1 3 2 7 7 . 0 0 6 5 1 . 8 4 2 . 9 1 PV C 2. 0 0 1 8 . 7 7 3 3 . 7 7 3 3 . 7 7 N P D E S MW ‐1D D e e p 5 9 3 7 4 7 . 6 0 1 4 1 3 8 1 8 . 0 0 6 5 3 . 2 6 2 . 6 9 PV C 2. 0 0 6 1 . 9 9 6 6 . 9 9 6 6 . 9 9 V o l u n t a r y MW ‐1S S h a l l o w 5 9 3 7 4 6 . 7 0 1 4 1 3 8 2 7 . 0 0 6 5 3 . 8 1 2 . 6 4 PV C 2. 0 0 1 0 . 3 0 2 0 . 3 0 2 0 . 3 0 V o l u n t a r y MW ‐2D D e e p 5 9 5 0 3 6 . 6 0 1 4 1 4 5 1 6 . 0 0 7 1 5 . 2 1 2 . 7 1 PV C 2. 0 0 8 9 . 0 6 9 4 . 0 6 9 4 . 0 6 V o l u n t a r y MW ‐2S S h a l l o w 5 9 5 0 3 7 . 8 0 1 4 1 4 5 0 8 . 0 0 7 1 4 . 4 9 2 . 1 6 PV C 2. 0 0 1 9 . 8 1 2 9 . 8 1 2 9 . 8 1 V o l u n t a r y MW ‐3D D e e p 5 9 5 6 4 9 . 2 0 1 4 1 4 9 5 4 . 0 0 6 5 4 . 9 6 2 . 4 7 PV C 2. 0 0 3 3 . 9 7 3 8 . 9 7 3 8 . 9 7 V o l u n t a r y MW ‐3S S h a l l o w 5 9 5 6 5 7 . 0 0 1 4 1 4 9 5 4 . 0 0 6 5 5 . 4 7 2 . 5 7 PV C 2. 0 0 8 . 8 5 1 8 . 8 5 1 8 . 8 5 V o l u n t a r y MW ‐4D D e e p 5 9 5 4 9 5 . 4 0 1 4 1 5 4 6 9 . 0 0 6 6 8 . 3 8 2 . 5 3 PV C 2. 0 0 6 0 . 1 1 6 5 . 1 1 6 5 . 1 1 V o l u n t a r y MW ‐4S S h a l l o w 5 9 5 4 9 7 . 8 0 1 4 1 5 4 7 7 . 0 0 6 6 7 . 7 2 2 . 3 4 PV C 2. 0 0 1 3 . 5 0 2 3 . 9 4 2 3 . 9 4 V o l u n t a r y MW ‐5D D e e p 5 9 5 0 6 6 . 8 0 1 4 1 5 8 1 7 . 0 0 6 4 9 . 8 9 2 . 6 9 PV C 2. 0 0 7 9 . 5 9 8 4 . 5 9 8 4 . 5 9 V o l u n t a r y MW ‐5S S h a l l o w 5 9 5 0 6 8 . 4 0 1 4 1 5 8 2 5 . 0 0 6 4 9 . 4 1 2 . 5 1 PV C 2. 0 0 1 0 . 1 8 2 0 . 1 8 2 0 . 1 8 V o l u n t a r y MW ‐6D D e e p 5 9 4 6 6 6 . 4 0 1 4 1 5 9 4 5 . 0 0 6 5 0 . 8 0 3 . 0 2 PV C 2. 0 0 7 5 . 3 4 8 0 . 3 4 8 0 . 3 4 V o l u n t a r y MW ‐6S S h a l l o w 5 9 4 6 7 1 . 7 0 1 4 1 5 9 4 2 . 0 0 6 5 0 . 3 3 2 . 7 3 PV C 2. 0 0 1 0 . 3 7 2 0 . 3 7 2 0 . 3 7 V o l u n t a r y Pa g e  3  of  4 Riverbend  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 ‐7D D e e p 5 9 2 7 7 9 . 1 0 1 4 1 5 8 5 0 . 0 0 7 6 5 . 1 5 2 . 1 8 PV C 2. 0 0 9 9 . 8 6 1 0 4 . 8 6 1 0 4 . 8 6 V o l u n t a r y MW ‐7S S h a l l o w 5 9 2 7 8 1 . 0 0 1 4 1 5 8 5 2 . 0 0 7 6 5 . 4 3 2 . 2 1 PV C 2. 0 0 4 7 . 2 9 5 2 . 2 9 5 2 . 2 9 V o l u n t a r y No t e s : 1.2.3.4.5.6. NM  in d i c a t e s  "n o t  me a s u r e d " ;  NR  in d i c a t e s  no  re c o r d 7. D e 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  CA M A  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  4  of  4 Riverbend  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 ‐1S 1 2 / 1 6 / 2 0 0 8 1 8 . 3 ‐‐ 17 2 ‐‐ 6. 8 8 9 2 0 . 0 3 8 . 3 MW ‐1S 6 / 2 2 / 2 0 0 9 1 7 . 4 7 ‐‐ 16 7 ‐‐ 6. 5 3 1 5 6 0 . 0 2 1 1 MW ‐1S 1 2 / 1 4 / 2 0 0 9 1 8 . 1 4 ‐‐ 17 3 ‐‐ 6. 9 9 < 1 0 0 < 0 . 0 2 9 . 6 MW ‐1S 6 / 2 8 / 2 0 1 0 1 9 . 1 6 ‐‐ 16 9 ‐‐ 6. 4 7 90 < 0 . 2 8 . 7 MW ‐1D 1 2 / 1 6 / 2 0 0 8 1 7 . 8 1 ‐‐ 26 9 ‐‐ 6. 1 6 22 4 0 . 0 3 6 . 7 MW ‐1D 6 / 2 2 / 2 0 0 9 1 9 . 5 1 ‐‐ 27 5 ‐‐ 5. 9 3 30 2 < 0 . 0 2 7 . 2 MW ‐1D 1 2 / 1 4 / 2 0 0 9 1 7 . 4 6 ‐‐ 28 6 ‐‐ 6. 1 6 19 4 < 0 . 0 2 6 . 8 MW ‐1D 6 / 2 8 / 2 0 1 0 1 9 . 9 8 ‐‐ 27 9 ‐‐ 5. 8 9 21 8 < 0 . 2 7 . 4 MW ‐2S 1 2 / 1 6 / 2 0 0 8 2 0 . 8 7 ‐‐ 15 2 . 3 ‐‐ 4. 5 9 98 0 . 1 6 8 MW ‐2S 6 / 2 2 / 2 0 0 9 1 8 . 0 1 ‐‐ 14 2 ‐‐ 4. 4 4 21 6 0 . 0 9 6 . 2 MW ‐2S 1 2 / 1 4 / 2 0 0 9 1 9 . 2 5 ‐‐ 16 8 ‐‐ 4. 4 5 64 0 . 0 7 9 . 3 MW ‐2S 6 / 2 8 / 2 0 1 0 1 7 . 7 1 ‐‐ 14 9 ‐‐ 4. 3 6 91 < 0 . 2 5 . 7 MW ‐2D 1 2 / 1 6 / 2 0 0 8 1 7 . 3 ‐‐ 73 ‐‐ 6. 4 6 96 0 . 0 5 2 . 8 MW ‐2D 6 / 2 2 / 2 0 0 9 1 8 . 2 1 ‐‐ 90 ‐‐ 6. 4 8 13 0 < 0 . 0 2 4 . 2 MW ‐2D 1 2 / 1 4 / 2 0 0 9 1 6 . 5 5 ‐‐ 12 3 ‐‐ 6. 5 3 6 4 < 0 . 0 2 3 . 6 MW ‐2D 6 / 2 8 / 2 0 1 0 1 8 . 9 1 ‐‐ 95 ‐‐ 6. 4 2 10 1 < 0 . 2 5 . 9 MW ‐3S 1 2 / 1 6 / 2 0 0 8 1 5 . 0 3 ‐‐ 18 9 . 3 ‐‐ 6. 4 9 12 8 0 . 0 4 7 . 6 MW ‐3S 6 / 2 2 / 2 0 0 9 1 5 . 1 3 ‐‐ 19 6 . 6 ‐‐ 6. 3 1 14 4 < 0 . 0 2 6 . 1 MW ‐3S 1 2 / 1 4 / 2 0 0 9 1 4 . 6 4 ‐‐ 19 5 . 4 ‐‐ 6. 2 4 13 2 < 0 . 0 2 6 . 5 MW ‐3S 6 / 2 8 / 2 0 1 0 1 7 . 5 1 ‐‐ 19 1 . 3 ‐‐ 6. 2 6 14 3 < 0 . 2 4 . 5 MW ‐3D 1 2 / 1 6 / 2 0 0 8 1 4 . 0 7 ‐‐ 17 9 . 5 ‐‐ 6. 9 8 1 5 4 0 . 0 8 5 . 5 MW ‐3D 6 / 2 2 / 2 0 0 9 1 4 . 6 ‐‐ 18 5 . 3 ‐‐ 6. 7 3 1 5 6 0 . 0 6 5 . 9 MW ‐3D 1 2 / 1 4 / 2 0 0 9 1 3 . 7 8 ‐‐ 18 4 . 6 ‐‐ 6. 7 9 1 4 0 0 . 0 6 5 . 7 MW ‐3D 6 / 2 8 / 2 0 1 0 1 5 . 7 9 ‐‐ 18 6 . 5 ‐‐ 6. 8 4 1 4 9 < 0 . 2 6 . 5 MW ‐4S 1 2 / 1 6 / 2 0 0 8 1 4 . 6 1 ‐‐ 11 6 . 3 ‐‐ 5. 4 9 12 4 0 . 1 1 6 . 3 MW ‐4S 6 / 2 2 / 2 0 0 9 1 4 . 4 3 ‐‐ 11 1 . 8 ‐‐ 5. 3 8 10 6 0 . 1 6 8 MW ‐4S 1 2 / 1 4 / 2 0 0 9 1 3 . 7 4 ‐‐ 11 2 . 3 ‐‐ 5. 3 5 11 8 0 . 1 5 5 . 7 MW ‐4S 6 / 2 8 / 2 0 1 0 1 7 . 4 9 ‐‐ 11 3 . 6 ‐‐ 5. 5 1 10 0 < 0 . 2 5 . 6 MW ‐4S 2 / 5 / 2 0 1 3 1 1 . 1 3 3 6 5 1 6 0 7 . 8 6 5. 3 5 1 1 0 0 0.08 7 . 6 MW ‐4S 1 0 / 1 5 / 2 0 1 3 1 4 . 9 9 3 7 2 1 2 0 0 . 0 4 5. 4 3 81 0 . 1 6 . 6 MW ‐4S 2 / 4 / 2 0 1 4 1 2 . 5 9 3 7 1 1 1 6 0 . 2 5. 4 4 10 0 0 . 1 3 6 . 7 MW ‐4S 6 / 3 / 2 0 1 4 1 4 . 8 4 4 1 2 1 1 5 1 . 8 5 5. 3 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐4S 1 0 / 7 / 2 0 1 4 1 5 . 2 4 2 0 0 1 2 8 1 . 8 8 5. 4 6 12 0 0 . 0 8 6 . 4 MW ‐4S 2 / 3 / 2 0 1 5 1 2 . 4 4 3 3 8 1 2 2 1 . 1 8 5. 2 2 11 0 0 . 1 3 6 . 5 MW ‐4S 6 / 1 / 2 0 1 5 1 7 . 0 1 3 6 5 1 1 8 0 . 8 6 5. 4 4 78 0 . 1 2 6 . 6 MW ‐4S 1 0 / 8 / 2 0 1 5 1 5 . 4 3 3 5 9 1 5 6 4 . 2 5. 4 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐4S 2 / 2 / 2 0 1 6 1 3 . 7 7 3 8 3 1 6 8 0 4. 8 21 0 < 0 . 0 2 3 8 . 9 MW ‐4S 6 / 6 / 2 0 1 6 2 2 . 8 3 3 0 7 1 3 0 4 . 0 5 5. 4 ‐‐ ‐ ‐ ‐ ‐ MW ‐4D 1 2 / 1 6 / 2 0 0 8 1 3 . 9 8 ‐‐ 13 3 . 1 ‐‐ 5. 9 2 13 4 0 . 0 6 5 . 9 MW ‐4D 6 / 2 2 / 2 0 0 9 1 4 . 4 5 ‐‐ 13 8 . 4 ‐‐ 5. 8 6 11 2 0 . 0 6 7 . 1 MW ‐4D 1 2 / 1 4 / 2 0 0 9 1 3 . 3 9 ‐‐ 13 5 . 6 ‐‐ 5. 7 9 11 6 0 . 0 3 6 MW ‐4D 6 / 2 8 / 2 0 1 0 1 5 . 4 8 ‐‐ 13 6 . 1 ‐‐ 5. 8 6 12 7 < 0 . 2 6 . 3 MW ‐4D 2 / 5 / 2 0 1 3 1 3 . 0 1 3 4 7 1 3 1 0 . 1 1 5. 6 2 13 0 0 . 0 4 5 . 7 MW ‐4D 1 0 / 1 5 / 2 0 1 3 1 3 . 9 9 3 7 9 1 3 6 1 2 . 5 4 5. 9 7 12 0 0 . 0 4 6 MW ‐4D 2 / 4 / 2 0 1 4 1 3 . 5 7 4 7 9 1 3 5 1 . 7 2 5. 7 4 12 0 0 . 0 4 6 MW ‐4D 6 / 3 / 2 0 1 4 1 4 . 1 3 9 9 1 3 5 1 . 3 1 5. 5 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐4D 1 0 / 7 / 2 0 1 4 1 4 . 0 2 2 0 7 1 3 5 0 . 1 5 5. 7 2 13 0 0 . 0 3 5 . 8 MW ‐4D 2 / 3 / 2 0 1 5 1 3 . 4 3 3 2 8 1 3 5 0 . 1 5 5. 5 6 11 0 0 . 0 3 5 . 9 MW ‐4D 6 / 1 / 2 0 1 5 1 4 . 3 8 3 4 7 1 3 2 0 . 1 8 5. 6 7 11 0 0 . 0 3 5 . 8 MW ‐4D 1 0 / 8 / 2 0 1 5 1 4 . 6 5 3 4 6 1 3 2 0 . 2 2 5. 6 7 10 0 0 . 0 3 6 MW ‐4D 2 / 2 / 2 0 1 6 1 3 . 6 8 2 5 2 1 3 4 0 5. 4 9 11 0 0 . 0 3 2 MW ‐4D 6 / 6 / 2 0 1 6 1 5 . 1 4 2 9 0 1 3 4 0 . 0 8 5. 8 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 1 2 / 1 6 / 2 0 0 8 1 5 . 7 1 ‐‐ 56 ‐‐ 5. 4 74 0 . 0 8 9 . 5 MW ‐5S 6 / 2 2 / 2 0 0 9 1 6 . 7 3 ‐‐ 64 . 1 ‐‐ 5. 3 7 52 1 . 1 4 9 . 4 MW ‐5S 1 2 / 1 4 / 2 0 0 9 1 5 . 3 6 ‐‐ 62 . 5 ‐‐ 5. 1 5 62 0 . 1 3 9 MW ‐5S 6 / 2 8 / 2 0 1 0 1 8 . 5 2 ‐‐ 64 . 3 ‐‐ 5. 2 7 48 < 0 . 2 8 . 1 Pa g e  1  of  18 Riverbend  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 ‐5S 1 2 / 6 / 2 0 1 0 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 2 / 1 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 6 / 7 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 1 0 / 4 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 2 / 4 / 2 0 1 3 1 2 . 5 8 3 8 4 7 2 0 . 6 5. 0 6 65 0 . 0 4 8 . 1 MW ‐5S 1 0 / 1 5 / 2 0 1 3 1 8 . 3 2 3 8 3 7 6 0 . 9 7 5. 1 2 80 0 . 0 3 8 . 6 MW ‐5S 2 / 4 / 2 0 1 4 1 1 . 9 8 3 3 0 7 5 0 . 4 5. 0 3 81 0 . 0 5 8 . 3 MW ‐5S 6 / 3 / 2 0 1 4 1 5 . 6 8 3 7 8 7 8 0 . 0 7 4. 8 4 ‐‐ ‐ ‐ ‐ ‐ MW ‐5S 1 0 / 7 / 2 0 1 4 1 7 . 9 3 3 8 6 7 4 0 . 1 4 4. 8 4 76 < 0 . 0 2 3 7 . 8 MW ‐5S 2 / 3 / 2 0 1 5 1 2 . 6 2 4 0 2 7 5 0 . 2 9 4. 5 9 59 0 . 0 3 7 . 9 MW ‐5S 6 / 2 / 2 0 1 5 1 5 . 8 7 3 9 0 7 5 2 . 0 5 4. 9 3 67 0 . 0 3 7 . 5 MW ‐5S 1 0 / 8 / 2 0 1 5 1 7 . 7 5 4 3 3 6 0 6 . 4 7 4. 9 1 50 0 . 0 5 7 . 5 MW ‐5S 2 / 2 / 2 0 1 6 1 3 . 9 9 3 9 9 6 6 0 . 4 9 4. 9 4 40 0 . 0 3 2 . 8 MW ‐5S 6 / 6 / 2 0 1 6 1 6 . 1 6 2 7 8 5 1 0 5. 0 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐5D 1 2 / 1 6 / 2 0 0 8 1 5 . 3 2 ‐‐ 27 8 . 1 ‐‐ 6. 8 3 2 2 4 0 . 1 5 7 . 7 MW ‐5D 6 / 2 2 / 2 0 0 9 1 6 . 1 9 ‐‐ 28 1 ‐‐ 6. 8 1 1 8 6 0 . 1 6 7 . 9 MW ‐5D 1 2 / 1 4 / 2 0 0 9 1 4 . 9 4 ‐‐ 27 7 . 8 ‐‐ 6. 7 1 9 6 0 . 1 4 7 . 8 MW ‐5D 6 / 2 8 / 2 0 1 0 1 6 . 8 7 ‐‐ 27 9 . 6 ‐‐ 6. 7 8 2 0 0 < 0 . 2 8 . 1 MW ‐5D 2 / 4 / 2 0 1 3 1 3 . 9 5 3 2 3 2 6 5 3 . 8 2 6 . 6 5 2 1 0 0 . 1 5 7 . 2 MW ‐5D 1 0 / 1 5 / 2 0 1 3 1 6 . 6 9 1 7 7 2 6 7 1 5 . 2 8 6 . 7 5 2 2 0 0 . 1 2 7 . 4 MW ‐5D 2 / 4 / 2 0 1 4 1 4 . 3 2 2 9 2 4 1 1 4 . 0 8 6 . 7 9 2 2 0 0 . 1 3 7 . 4 MW ‐5D 6 / 3 / 2 0 1 4 1 5 . 8 2 2 4 2 2 6 3 0 . 4 6. 4 9 ‐‐ ‐ ‐ ‐ ‐ MW ‐5D 1 0 / 7 / 2 0 1 4 1 5 . 9 3 3 2 0 2 6 5 1 . 6 9 6 . 5 2 2 2 0 0 . 1 4 7 MW ‐5D 2 / 3 / 2 0 1 5 1 4 . 1 6 3 1 8 2 6 5 1 . 3 1 6 . 5 2 2 0 0 0 . 1 3 7 . 1 MW ‐5D 6 / 2 / 2 0 1 5 1 5 . 8 1 2 1 4 2 6 5 0 . 4 1 6 . 5 9 2 0 0 0 . 1 6 . 6 MW ‐5D 1 0 / 8 / 2 0 1 5 1 6 . 0 7 3 1 6 2 6 4 0 . 2 7 6 . 5 9 2 0 0 0 . 1 4 7 . 2 MW ‐5D 2 / 2 / 2 0 1 6 1 5 . 3 1 2 9 8 2 6 3 0 . 3 6 . 5 9 1 8 0 0 . 1 3 2 . 6 MW ‐5D 6 / 6 / 2 0 1 6 1 6 . 5 9 2 1 1 2 5 8 0 6 . 5 7 ‐‐ ‐ ‐ ‐ ‐ MW ‐6S 1 2 / 1 6 / 2 0 0 8 1 5 . 6 7 ‐‐ 14 1 . 7 ‐‐ 6. 3 1 11 4 0 . 0 3 5 . 3 MW ‐6S 6 / 2 2 / 2 0 0 9 1 6 . 8 8 ‐‐ 14 9 . 8 ‐‐ 6. 3 8 10 8 < 0 . 2 3 5 . 4 MW ‐6S 1 2 / 1 4 / 2 0 0 9 1 5 . 7 8 ‐‐ 14 9 . 7 ‐‐ 6. 2 8 11 6 < 0 . 0 2 5 . 3 MW ‐6S 6 / 2 8 / 2 0 1 0 1 7 . 2 6 ‐‐ 15 1 . 7 ‐‐ 6. 3 9 10 7 < 0 . 2 6 . 4 MW ‐6S 1 2 / 6 / 2 0 1 0 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐6S 2 / 1 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐6S 6 / 7 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐6S 1 0 / 4 / 2 0 1 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐‐ ‐ ‐ ‐ ‐ MW ‐6D 1 2 / 1 6 / 2 0 0 8 1 5 . 6 3 ‐‐ 16 2 . 7 ‐‐ 6. 4 8 12 6 0 . 0 3 5 . 8 MW ‐6D 6 / 2 2 / 2 0 0 9 1 6 . 9 7 ‐‐ 17 0 . 7 ‐‐ 6. 5 8 1 3 4 < 0 . 0 2 6 MW ‐6D 1 2 / 1 4 / 2 0 0 9 1 5 . 4 5 ‐‐ 16 9 . 7 ‐‐ 6. 4 5 13 0 < 0 . 0 2 6 . 1 MW ‐6D 6 / 2 8 / 2 0 1 0 1 7 . 5 4 ‐‐ 17 0 . 1 ‐‐ 6. 7 1 1 3 < 0 . 2 6 . 8 MW ‐7S R 1 2 / 6 / 2 0 1 0 1 3 . 2 1 ‐‐ 29 ‐‐ 5. 4 8 12 0 < 0 . 1 2 MW ‐7S R 2 / 2 / 2 0 1 1 1 5 . 3 6 ‐‐ 23 . 4 ‐‐ 5. 3 3 <5 0 < 0 . 1 2 MW ‐7S R 6 / 6 / 2 0 1 1 1 6 . 6 9 ‐‐ 24 ‐‐ 5. 3 4 22 < 0 . 0 2 3 2 MW ‐7S R 1 0 / 4 / 2 0 1 1 1 5 . 3 1 ‐‐ 28 ‐‐ 5. 3 7 <1 0 < 0 . 0 2 3 1 . 9 MW ‐7S R 2 / 2 2 / 2 0 1 2 1 5 . 3 2 3 7 4 2 1 6 . 6 9 5. 1 3 24 < 0 . 1 2 . 1 MW ‐7S R 6 / 5 / 2 0 1 2 1 6 . 0 1 3 4 9 2 2 3 . 8 6 5. 1 9 32 < 0 . 0 2 3 1 . 9 MW ‐7S R 1 0 / 3 / 2 0 1 2 1 6 . 7 8 3 8 2 2 2 5 . 8 5. 2 4 10 < 0 . 0 2 3 1 . 8 MW ‐7S R 2 / 4 / 2 0 1 3 1 5 . 1 7 3 6 8 2 0 5 . 6 9 5. 1 2 15 0 . 0 2 1 . 8 MW ‐7S R 6 / 3 / 2 0 1 3 1 6 . 2 4 3 6 6 2 0 5 . 8 6 4. 9 6 <2 5 < 0 . 0 2 3 1 . 9 MW ‐7S R 1 0 / 1 4 / 2 0 1 3 1 6 . 5 2 3 4 8 2 2 6 . 8 1 5. 2 9 <2 5 < 0 . 0 2 3 1 . 9 MW ‐7S R 2 / 5 / 2 0 1 4 1 4 . 5 5 4 0 3 1 9 7 . 1 5. 0 6 <2 5 0 . 0 2 2 MW ‐7S R 6 / 2 / 2 0 1 4 1 7 . 3 8 4 1 5 2 0 6 . 8 7 5. 0 5 <2 5 < 0 . 0 2 3 1 . 9 MW ‐7S R 1 0 / 6 / 2 0 1 4 1 5 . 9 2 3 8 4 2 0 6 . 4 5. 1 <2 5 < 0 . 0 2 3 2 MW ‐7S R 2 / 2 / 2 0 1 5 1 5 . 6 2 3 8 3 2 0 6 . 0 4 5. 0 5 <2 5 < 0 . 0 2 3 2 MW ‐7S R 6 / 1 / 2 0 1 5 1 6 . 1 5 4 1 8 1 9 5 . 9 9 5. 0 3 <2 5 < 0 . 0 2 3 2 MW ‐7S R 1 0 / 7 / 2 0 1 5 1 6 . 9 6 4 2 1 1 9 6 . 5 4 5. 2 4 <2 5 0 . 0 3 1 . 9 Pa g e  2  of  18 Riverbend  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 ‐7S R 2 / 1 / 2 0 1 6 1 5 . 4 6 4 2 0 2 0 6 . 6 1 5. 1 9 <2 5 0 . 0 5 1 . 2 MW ‐7S R 6 / 6 / 2 0 1 6 1 6 . 6 9 3 6 3 1 9 6 . 0 2 5. 2 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐7D 1 2 / 1 6 / 2 0 0 8 1 5 . 6 ‐‐ 38 . 3 ‐‐ 5. 9 2 44 0 . 0 4 1 . 1 MW ‐7D 6 / 2 2 / 2 0 0 9 1 6 . 8 3 ‐‐ 40 ‐‐ 5. 7 8 54 < 0 . 0 2 1 . 2 MW ‐7D 1 2 / 1 4 / 2 0 0 9 1 5 . 0 1 ‐‐ 35 ‐‐ 5. 8 5 46 < 0 . 0 2 1 . 3 MW ‐7D 6 / 2 8 / 2 0 1 0 1 7 . 2 7 ‐‐ 39 ‐‐ 5. 6 4 63 < 0 . 2 1 . 5 MW ‐7D 1 2 / 6 / 2 0 1 0 1 3 . 3 1 ‐‐ 37 ‐‐ 5. 7 9 <5 0 < 0 . 1 1 . 2 MW ‐7D 2 / 2 / 2 0 1 1 1 5 . 7 ‐‐ 32 . 9 ‐‐ 5. 6 1 <5 0 < 0 . 1 1 . 2 MW ‐7D 6 / 6 / 2 0 1 1 1 7 . 1 5 ‐‐ 33 ‐‐ 5. 7 9 45 < 0 . 0 2 3 1 . 2 MW ‐7D 1 0 / 4 / 2 0 1 1 1 5 . 4 5 ‐‐ 38 ‐‐ 5. 8 27 < 0 . 0 2 3 1 MW ‐7D 2 / 2 2 / 2 0 1 2 1 5 . 4 7 4 0 3 3 6 8 . 3 1 5. 5 6 47 < 0 . 1 < 1 MW ‐7D 6 / 5 / 2 0 1 2 1 5 . 8 8 3 5 9 3 6 3 . 7 3 5. 6 8 40 < 0 . 0 2 3 1 . 2 MW ‐7D 1 0 / 3 / 2 0 1 2 1 6 . 4 7 3 6 9 3 7 8 . 3 1 5. 6 8 30 < 0 . 0 2 3 1 . 2 MW ‐7D 2 / 4 / 2 0 1 3 1 5 . 5 7 3 9 5 3 7 8 . 1 6 5. 5 1 39 < 0 . 0 2 3 1 . 1 MW ‐7D 6 / 3 / 2 0 1 3 1 5 . 9 3 3 7 2 3 7 7 . 9 2 5. 5 32 < 0 . 0 2 3 1 . 2 MW ‐7D 1 0 / 1 4 / 2 0 1 3 1 5 . 9 2 3 7 1 3 7 7 . 8 8 5. 6 9 42 < 0 . 0 2 3 1 . 1 MW ‐7D 2 / 5 / 2 0 1 4 1 5 . 4 3 4 0 1 3 7 8 . 0 9 5. 6 2 42 < 0 . 0 2 3 1 . 3 MW ‐7D 6 / 2 / 2 0 1 4 1 5 . 8 2 3 9 4 3 7 8 . 0 3 5. 4 8 41 < 0 . 0 2 3 1 . 2 MW ‐7D 1 0 / 6 / 2 0 1 4 1 5 . 7 6 3 6 9 3 8 8 . 0 5 5. 6 1 34 < 0 . 0 2 3 1 . 2 MW ‐7D 2 / 2 / 2 0 1 5 1 5 . 6 4 3 7 4 3 7 7 . 9 7 5. 5 6 29 < 0 . 0 2 3 1 . 2 MW ‐7D 6 / 1 / 2 0 1 5 1 5 . 8 2 4 2 6 3 5 8 . 1 4 5. 4 7 47 < 0 . 0 2 3 1 . 3 MW ‐7D 1 0 / 7 / 2 0 1 5 1 5 . 9 6 4 0 9 3 5 7 . 8 2 5. 7 1 25 < 0 . 0 2 3 1 . 1 MW ‐7D 2 / 1 / 2 0 1 6 1 5 . 7 1 4 5 0 2 8 7 . 8 3 5. 7 6 49 < 0 . 0 2 3 0 . 5 2 MW ‐7D 6 / 6 / 2 0 1 6 1 5 . 8 8 3 7 3 3 6 8 . 0 7 5. 7 2 ‐‐ ‐ ‐ ‐ ‐ MW ‐8S 1 2 / 6 / 2 0 1 0 1 1 . 8 ‐‐ 19 ‐‐ 5. 3 3 <5 0 < 0 . 1 2 MW ‐8S 2 / 1 / 2 0 1 1 1 3 . 5 4 ‐‐ 19 ‐‐ 5. 2 2 <5 0 < 0 . 1 2 . 2 MW ‐8S 6 / 7 / 2 0 1 1 1 6 . 8 6 ‐‐ 17 ‐‐ 4. 9 4 20 < 0 . 0 2 3 2 . 7 MW ‐8S 1 0 / 3 / 2 0 1 1 1 4 . 4 2 ‐‐ 18 ‐‐ 5. 2 2 18 < 0 . 0 2 3 2 . 1 MW ‐8S 2 / 6 / 2 0 1 2 1 2 . 7 4 4 4 3 1 8 8 . 2 3 5. 0 8 22 < 0 . 0 2 2 . 2 MW ‐8S 6 / 4 / 2 0 1 2 1 6 . 1 4 4 0 9 2 0 8 . 1 7 5. 0 7 <2 5 < 0 . 0 2 3 3 MW ‐8S 1 0 / 3 / 2 0 1 2 1 7 . 2 4 7 0 1 6 7 . 7 6 5. 0 1 11 < 0 . 0 2 3 2 . 2 MW ‐8S 2 / 4 / 2 0 1 3 1 4 . 5 2 4 4 4 1 5 8 . 2 1 4. 9 2 12 < 0 . 0 2 3 2 MW ‐8S 6 / 3 / 2 0 1 3 1 6 . 2 1 4 6 3 1 9 7 . 8 4 4. 3 4 <2 5 < 0 . 0 2 3 2 . 7 MW ‐8S 1 0 / 1 4 / 2 0 1 3 1 5 . 9 2 4 5 2 1 9 7 . 6 4. 7 1 <2 5 < 0 . 0 2 3 3 MW ‐8S 2 / 4 / 2 0 1 4 1 4 . 7 1 4 7 3 1 7 8 . 1 5 4. 8 <2 5 < 0 . 0 2 3 2 . 5 MW ‐8S 6 / 2 / 2 0 1 4 1 6 . 3 2 4 4 2 2 0 7 . 5 5 4. 7 8 <2 5 < 0 . 0 2 3 3 . 3 MW ‐8S 1 0 / 6 / 2 0 1 4 1 6 . 2 3 9 1 2 1 7 . 4 4. 8 3 <2 5 < 0 . 0 2 3 3 . 5 MW ‐8S 2 / 2 / 2 0 1 5 1 5 . 3 6 4 0 5 1 9 7 . 7 5 4. 8 2 <2 5 < 0 . 0 2 3 2 . 9 MW ‐8S 6 / 1 / 2 0 1 5 1 6 . 0 7 4 8 5 1 8 8 . 0 6 4. 7 5 <2 5 < 0 . 0 2 3 2 . 9 MW ‐8S 1 0 / 7 / 2 0 1 5 1 5 . 7 4 4 6 7 1 5 8 . 1 4. 8 6 <2 5 < 0 . 0 2 3 2 . 3 MW ‐8S 2 / 1 / 2 0 1 6 1 5 . 2 7 5 0 6 1 8 7 . 7 4. 8 7 37 < 0 . 0 2 3 1 . 4 MW ‐8S 6 / 6 / 2 0 1 6 1 6 . 6 8 3 8 9 2 2 7 . 2 2 4. 8 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐8I 1 2 / 6 / 2 0 1 0 1 3 . 4 7 ‐‐ 87 ‐‐ 6. 8 2 1 1 0 < 0 . 1 1 . 4 MW ‐8I 2 / 1 / 2 0 1 1 1 4 . 2 7 ‐‐ 74 ‐‐ 6. 4 10 0 < 0 . 1 1 . 2 MW ‐8I 6 / 7 / 2 0 1 1 1 7 . 4 4 ‐‐ 61 ‐‐ 6. 3 3 92 < 0 . 0 2 3 1 . 2 MW ‐8I 1 0 / 3 / 2 0 1 1 1 5 . 5 6 ‐‐ 57 ‐‐ 6. 4 10 0 < 0 . 0 2 3 1 . 1 MW ‐8I 2 / 6 / 2 0 1 2 1 4 . 5 1 3 5 0 5 4 9 . 1 4 6. 4 10 0 < 0 . 0 2 1 . 1 MW ‐8I 6 / 4 / 2 0 1 2 1 6 . 4 7 3 3 3 5 2 9 . 3 7 6. 3 8 95 < 0 . 0 2 3 1 . 2 MW ‐8I 1 0 / 3 / 2 0 1 2 1 6 . 8 2 4 4 0 4 9 8 . 5 7 6. 0 9 87 < 0 . 0 2 3 1 . 1 MW ‐8I 2 / 4 / 2 0 1 3 1 4 . 8 3 3 8 4 4 8 9 . 8 8 6. 0 5 91 < 0 . 0 2 3 1 . 1 MW ‐8I 6 / 3 / 2 0 1 3 1 6 . 7 4 4 0 1 4 7 9 . 4 4 5. 6 5 78 < 0 . 0 2 3 1 . 1 MW ‐8I 1 0 / 1 4 / 2 0 1 3 1 6 . 3 6 3 8 7 4 7 9 . 9 2 6 79 < 0 . 0 2 3 1 . 1 MW ‐8I 2 / 4 / 2 0 1 4 1 2 . 8 8 3 9 9 4 7 1 0 . 4 5 6. 0 3 87 < 0 . 0 2 3 1 . 2 MW ‐8I 6 / 2 / 2 0 1 4 1 7 . 7 7 3 8 5 4 6 9 . 9 7 5. 9 8 88 < 0 . 0 2 3 1 . 1 MW ‐8I 1 0 / 6 / 2 0 1 4 1 5 . 8 4 3 4 1 4 8 1 0 . 4 2 6. 0 2 91 < 0 . 0 2 3 1 . 2 MW ‐8I 2 / 2 / 2 0 1 5 1 4 . 6 9 3 5 4 4 7 1 0 . 2 4 6. 0 1 99 < 0 . 0 2 3 1 . 2 Pa g e  3  of  18 Riverbend  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 ‐8I 6 / 1 / 2 0 1 5 1 6 . 1 4 3 1 3 5 1 0 . 7 7 5. 9 7 92 < 0 . 0 2 3 1 . 2 MW ‐8I 1 0 / 7 / 2 0 1 5 1 5 . 8 1 4 0 9 4 6 1 0 . 3 6. 1 2 84 < 0 . 0 2 3 1 . 1 MW ‐8I 2 / 1 / 2 0 1 6 1 5 . 3 4 4 3 4 5 1 0 . 2 7 6. 1 4 75 < 0 . 0 2 3 0 . 3 8 MW ‐8I 6 / 6 / 2 0 1 6 1 6 . 0 4 3 8 6 4 5 1 0 . 6 7 6. 0 4 ‐‐ ‐ ‐ ‐ ‐ MW ‐8D 1 2 / 6 / 2 0 1 0 1 3 . 4 7 ‐‐ 90 ‐‐ 7. 0 8 1 4 0 < 0 . 1 2 . 5 MW ‐8D 2 / 1 / 2 0 1 1 1 4 . 2 7 ‐‐ 90 ‐‐ 6. 8 4 1 3 0 < 0 . 1 2 MW ‐8D 6 / 7 / 2 0 1 1 1 7 . 9 7 ‐‐ 95 ‐‐ 7 1 2 0 < 0 . 0 2 3 1 . 3 MW ‐8D 1 0 / 3 / 2 0 1 1 1 5 . 3 8 ‐‐ 88 ‐‐ 6. 8 1 1 0 0 . 0 2 1 . 2 MW ‐8D 2 / 6 / 2 0 1 2 1 3 . 9 3 2 4 1 8 2 5 . 7 6 . 7 7 1 2 0 < 0 . 0 2 1 . 2 MW ‐8D 6 / 4 / 2 0 1 2 1 6 . 2 2 2 6 2 7 9 6 . 7 1 6 . 8 1 1 2 2 0 . 0 2 1 . 3 MW ‐8D 1 0 / 3 / 2 0 1 2 1 7 . 7 5 3 6 5 7 6 7 . 8 5 6. 4 9 13 0 0 . 0 3 1 . 2 MW ‐8D 2 / 4 / 2 0 1 3 1 4 . 1 2 1 7 1 8 2 3 . 9 8 6. 4 1 15 0 0 . 0 5 1 . 3 MW ‐8D 6 / 3 / 2 0 1 3 1 6 . 5 4 1 6 7 8 1 4 . 1 4 6. 2 7 12 0 0 . 0 4 1 . 3 MW ‐8D 1 0 / 1 4 / 2 0 1 3 1 6 . 2 4 2 8 6 7 5 4 . 7 8 6. 3 1 12 0 0 . 0 4 1 . 2 MW ‐8D 2 / 4 / 2 0 1 4 1 3 . 3 8 3 4 5 7 5 6 . 6 2 6. 3 8 14 0 0 . 0 4 1 . 3 MW ‐8D 6 / 2 / 2 0 1 4 1 6 . 8 6 3 6 6 7 1 7 . 1 5 6. 3 4 14 0 0 . 0 3 1 . 2 MW ‐8D 1 0 / 6 / 2 0 1 4 1 5 . 7 3 3 4 3 7 4 8 . 0 8 6. 3 4 11 0 0 . 0 3 1 . 3 MW ‐8D 2 / 2 / 2 0 1 5 1 5 . 3 9 3 4 6 7 3 8 . 5 4 6. 3 4 11 0 0 . 0 3 1 . 3 MW ‐8D 6 / 1 / 2 0 1 5 1 5 . 9 3 4 2 1 7 2 7 . 6 3 6. 3 4 12 0 < 0 . 0 2 3 1 . 3 MW ‐8D 1 0 / 7 / 2 0 1 5 1 5 . 8 5 3 8 2 6 9 8 . 1 1 6. 4 1 89 0 . 0 4 1 . 2 MW ‐8D 2 / 1 / 2 0 1 6 1 5 . 2 7 4 2 2 6 9 7 . 7 6. 4 3 75 0 . 0 3 0 . 3 2 MW ‐8D 6 / 6 / 2 0 1 6 1 6 . 3 1 3 7 9 6 8 8 . 6 3 6. 4 3 ‐‐ ‐ ‐ ‐ ‐ MW ‐9 1 2 / 6 / 2 0 1 0 1 4 . 5 1 ‐‐ 13 4 . 1 ‐‐ 6. 1 4 20 0 0 . 4 3 2 . 3 MW ‐9 2 / 1 / 2 0 1 1 1 4 . 6 7 ‐‐ 13 3 ‐‐ 6. 1 3 14 0 0 . 1 2 . 2 MW ‐9 6 / 6 / 2 0 1 1 1 7 . 1 ‐‐ 13 3 ‐‐ 6. 4 14 0 0 . 1 2 . 3 MW ‐9 1 0 / 4 / 2 0 1 1 1 5 . 6 8 ‐‐ 14 2 ‐‐ 6. 2 3 12 0 0 . 0 9 2 . 1 MW ‐9 2 / 6 / 2 0 1 2 1 4 . 6 5 3 6 8 1 4 8 2 . 8 8 6. 2 9 15 0 0 . 0 8 2 . 3 MW ‐9 6 / 5 / 2 0 1 2 1 6 3 3 2 1 5 2 3 . 8 6. 0 3 12 7 0 . 0 8 2 . 4 MW ‐9 1 0 / 3 / 2 0 1 2 1 7 . 0 1 2 9 6 1 5 7 3 . 2 1 6. 1 14 0 0 . 0 8 2 . 2 MW ‐9 2 / 4 / 2 0 1 3 1 4 . 3 3 8 2 1 6 2 3 . 6 9 5. 9 9 17 0 0 . 0 8 2 . 4 MW ‐9 6 / 4 / 2 0 1 3 1 5 . 6 6 3 8 6 1 7 0 2 . 7 7 5. 8 2 15 0 0 . 0 8 2 . 5 MW ‐9 1 0 / 1 5 / 2 0 1 3 1 5 . 8 6 3 0 3 1 6 7 2 . 7 6 6. 0 1 14 0 0 . 1 2 . 5 MW ‐9 2 / 5 / 2 0 1 4 1 5 . 6 7 3 5 6 1 6 9 2 . 7 3 5. 9 8 15 0 0 . 0 9 2 . 6 MW ‐9 6 / 2 / 2 0 1 4 1 5 . 5 7 4 1 4 1 6 7 2 . 7 7 6 15 0 0 . 0 8 2 . 5 MW ‐9 1 0 / 6 / 2 0 1 4 1 5 . 6 5 2 4 9 1 5 7 2 . 9 9 5. 9 7 13 0 0 . 0 8 2 . 5 MW ‐9 2 / 3 / 2 0 1 5 1 5 . 4 4 3 3 6 1 5 3 3 . 3 8 6. 0 2 12 0 0 . 0 8 2 . 4 MW ‐9 6 / 2 / 2 0 1 5 1 5 . 6 6 3 3 1 1 4 3 4 . 7 3 6. 0 5 14 0 0 . 0 9 2 . 3 MW ‐9 1 0 / 6 / 2 0 1 5 1 5 . 8 2 2 8 1 1 4 4 3 . 1 8 6. 1 11 0 0 . 0 7 2 . 2 MW ‐9 2 / 1 / 2 0 1 6 1 5 . 6 5 2 5 6 1 3 9 3 . 2 5 6. 0 8 92 0 . 0 6 0 . 8 1 MW ‐9 6 / 6 / 2 0 1 6 1 5 . 8 5 3 0 8 1 3 4 3 . 9 6 6. 2 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐10 1 2 / 6 / 2 0 1 0 1 5 . 2 ‐‐ 71 . 4 ‐‐ 5. 5 7 78 0 . 2 7 . 2 MW ‐10 2 / 1 / 2 0 1 1 1 4 . 1 ‐‐ 84 . 7 ‐‐ 5. 4 90 < 0 . 1 7 MW ‐10 6 / 7 / 2 0 1 1 1 5 . 9 3 ‐‐ 79 . 4 ‐‐ 5. 3 74 0 . 0 4 6 . 9 MW ‐10 1 0 / 3 / 2 0 1 1 1 6 . 8 1 ‐‐ 13 3 . 6 ‐‐ 5. 3 6 85 0 . 0 3 6 MW ‐10 2 / 6 / 2 0 1 2 1 4 . 6 7 4 0 8 6 5 1 . 5 2 5. 3 62 0 . 0 4 7 . 6 MW ‐10 6 / 4 / 2 0 1 2 1 5 . 5 3 4 0 1 6 8 1 . 0 1 5. 2 6 61 0 . 0 4 6 . 5 MW ‐10 1 0 / 3 / 2 0 1 2 1 7 . 8 7 2 4 3 1 2 4 0 . 8 8 5. 4 1 97 < 0 . 0 2 3 5 . 8 MW ‐10 2 / 4 / 2 0 1 3 1 4 . 8 8 3 8 8 8 6 2 . 0 8 5. 2 9 73 0 . 0 5 6 . 8 MW ‐10 6 / 4 / 2 0 1 3 1 4 . 8 4 4 4 4 6 5 1 . 3 9 4. 8 58 0 . 0 5 7 . 2 MW ‐10 1 0 / 1 5 / 2 0 1 3 1 7 . 3 7 3 1 1 1 2 3 0 . 2 8 5. 2 8 95 0 . 0 3 6 . 3 MW ‐10 2 / 3 / 2 0 1 4 1 5 . 3 5 3 7 5 7 8 1 . 7 7 5. 2 2 92 0 . 0 4 7 . 2 MW ‐10 6 / 2 / 2 0 1 4 1 4 . 9 9 4 7 0 7 9 0 . 9 6 5. 2 4 72 0 . 0 4 6 . 7 MW ‐10 1 0 / 6 / 2 0 1 4 1 7 . 2 2 1 8 4 1 3 7 0 . 8 1 5. 3 3 96 < 0 . 0 2 3 6 MW ‐10 2 / 2 / 2 0 1 5 1 4 . 0 4 3 3 9 9 9 2 . 8 9 5. 2 2 69 0 . 0 4 7 MW ‐10 6 / 1 / 2 0 1 5 1 5 . 5 7 2 8 4 8 9 0 . 8 4 5. 3 6 76 < 0 . 0 2 3 6 . 3 MW ‐10 1 0 / 6 / 2 0 1 5 1 6 . 9 7 3 3 7 1 3 5 0 . 5 4 5. 3 1 89 0 . 0 4 6 . 2 Pa g e  4  of  18 Riverbend  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 2 / 1 / 2 0 1 6 1 5 . 5 9 2 1 6 5 2 1 . 6 6 5. 3 9 54 0 . 0 4 2 . 3 MW ‐10 6 / 6 / 2 0 1 6 1 5 . 6 6 3 3 1 8 9 0 . 9 3 5. 4 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 S R 2 / 1 / 2 0 1 1 1 6 . 5 6 ‐‐ 16 7 . 7 ‐‐ 6. 0 7 13 0 0 . 1 3 7 . 2 MW ‐11 S R 6 / 6 / 2 0 1 1 1 9 . 7 ‐‐ 16 2 . 7 ‐‐ 5. 7 9 13 0 0 . 1 8 7 . 3 MW ‐11 S R 1 0 / 3 / 2 0 1 1 1 7 . 0 6 ‐‐ 16 1 . 8 ‐‐ 5. 5 9 10 0 0 . 1 8 7 MW ‐11 S R 2 / 6 / 2 0 1 2 1 7 . 1 9 9 6 1 5 3 0 . 4 3 5. 7 2 11 0 0 . 1 5 6 . 7 MW ‐11 S R 6 / 4 / 2 0 1 2 1 7 . 6 6 1 2 2 1 5 6 0 . 5 3 5. 7 2 11 3 0 . 1 6 6 . 6 MW ‐11 S R 1 0 / 3 / 2 0 1 2 1 8 . 2 7 8 2 1 5 8 0 . 4 5 5. 7 8 11 0 0 . 1 6 6 . 5 MW ‐11 S R 2 / 4 / 2 0 1 3 1 7 . 4 4 1 1 8 1 5 6 0 . 5 3 5. 7 2 11 0 0 . 1 6 6 . 7 MW ‐11 S R 6 / 3 / 2 0 1 3 1 8 . 0 5 1 7 1 1 5 5 0 . 5 9 5. 6 7 13 0 0 . 1 6 6 . 9 MW ‐11 S R 1 0 / 1 4 / 2 0 1 3 1 8 . 1 3 1 5 5 1 5 2 0 . 6 5. 7 7 11 0 0 . 1 7 7 . 1 MW ‐11 S R 2 / 3 / 2 0 1 4 1 7 . 8 3 1 3 8 1 5 0 0 . 6 5 5. 6 8 13 0 0 . 1 6 6 . 8 MW ‐11 S R 6 / 2 / 2 0 1 4 1 9 . 0 1 2 4 2 1 5 1 0 . 7 5 5. 7 3 11 0 0 . 1 7 6 . 6 MW ‐11 S R 1 0 / 6 / 2 0 1 4 1 7 . 2 8 5 9 1 4 8 0 . 8 9 5. 6 8 98 0 . 1 7 6 . 5 MW ‐11 S R 2 / 2 / 2 0 1 5 1 6 . 5 4 2 2 8 1 4 8 1 . 0 7 5. 6 2 98 0 . 1 9 6 . 5 MW ‐11 S R 6 / 1 / 2 0 1 5 1 7 . 7 8 2 1 3 1 5 1 1 . 3 3 5. 7 6 11 0 0 . 2 1 6 . 1 MW ‐11 S R 1 0 / 6 / 2 0 1 5 1 7 . 0 2 1 3 4 1 4 8 1 . 4 6 5. 8 1 89 0 . 2 4 6 . 3 MW ‐11 S R 2 / 1 / 2 0 1 6 1 6 . 8 6 1 4 0 1 4 2 1 . 4 4 5. 7 8 10 0 0 . 2 7 2 . 1 MW ‐11 S R 6 / 6 / 2 0 1 6 1 7 . 7 2 1 5 1 5 2 2 . 6 7 5. 8 5 ‐‐ ‐ ‐ ‐ ‐ MW ‐11 D R 2 / 1 / 2 0 1 1 1 6 . 7 1 ‐‐ 15 3 . 9 ‐‐ 5. 8 3 12 0 0 . 1 6 7 . 2 MW ‐11 D R 6 / 6 / 2 0 1 1 1 9 . 3 9 ‐‐ 15 4 . 6 ‐‐ 5. 6 3 12 0 0 . 2 1 7 . 2 MW ‐11 D R 1 0 / 3 / 2 0 1 1 1 7 . 1 4 ‐‐ 15 5 . 4 ‐‐ 5. 5 5 98 0 . 2 7 MW ‐11 D R 2 / 6 / 2 0 1 2 1 7 . 1 6 2 6 2 1 4 8 0 . 7 8 5. 6 7 11 0 0 . 1 7 6 . 7 MW ‐11 D R 6 / 4 / 2 0 1 2 1 7 . 7 8 2 3 9 1 5 3 0 . 7 2 5. 6 6 11 2 0 . 1 9 6 . 7 MW ‐11 D R 1 0 / 3 / 2 0 1 2 1 8 . 2 8 1 5 1 1 5 4 0 . 5 1 5. 7 5 10 0 0 . 1 8 6 . 4 MW ‐11 D R 2 / 4 / 2 0 1 3 1 7 . 3 1 2 3 2 1 5 3 0 . 9 5 5. 6 7 11 0 0 . 1 7 6 . 7 MW ‐11 D R 6 / 3 / 2 0 1 3 1 7 . 8 3 2 3 9 1 5 2 0 . 6 5 5. 6 4 12 0 0 . 1 8 6 . 8 MW ‐11 D R 1 0 / 1 4 / 2 0 1 3 1 8 . 1 1 1 9 8 1 5 1 0 . 7 9 5. 7 6 11 0 0 . 1 9 7 MW ‐11 D R 2 / 3 / 2 0 1 4 1 8 . 0 6 2 6 2 1 4 9 1 . 1 2 5. 6 5 15 0 0 . 1 8 6 . 8 MW ‐11 D R 6 / 2 / 2 0 1 4 1 7 . 8 5 4 3 1 1 4 9 0 . 9 5 5. 7 1 11 0 0 . 1 9 6 . 6 MW ‐11 D R 1 0 / 6 / 2 0 1 4 1 7 . 3 9 1 5 1 1 4 8 1 . 0 9 5. 7 3 98 0 . 2 1 6 . 4 MW ‐11 D R 2 / 2 / 2 0 1 5 1 6 . 9 4 2 6 8 1 5 0 1 . 4 3 5. 6 8 10 0 0 . 2 4 6 . 4 MW ‐11 D R 6 / 1 / 2 0 1 5 1 7 . 6 6 2 6 1 1 5 2 1 . 4 9 5. 8 7 11 0 0 . 2 8 6 MW ‐11 D R 1 0 / 6 / 2 0 1 5 1 7 . 1 6 2 0 1 1 4 0 1 . 1 1 6 10 0 0 . 3 3 5 . 7 MW ‐11 D R 2 / 1 / 2 0 1 6 1 6 . 9 5 2 0 6 1 4 6 1 . 5 2 5. 9 5 21 0 0 . 3 3 2 . 2 MW ‐11 D R 6 / 6 / 2 0 1 6 1 7 . 8 6 2 4 7 1 4 9 1 . 4 7 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐13 1 2 / 6 / 2 0 1 0 1 6 . 4 2 ‐‐ 19 8 . 2 ‐‐ 6. 2 7 12 0 < 0 . 1 4 . 6 MW ‐13 2 / 1 / 2 0 1 1 1 4 . 7 5 ‐‐ 29 6 . 9 ‐‐ 6. 3 5 11 0 < 0 . 1 5 MW ‐13 6 / 7 / 2 0 1 1 1 6 . 4 8 ‐‐ 20 3 ‐‐ 6. 2 2 12 0 < 0 . 0 2 3 5 MW ‐13 1 0 / 4 / 2 0 1 1 1 7 . 5 5 ‐‐ 21 3 . 6 ‐‐ 6. 2 9 11 0 0 . 0 6 4 . 4 MW ‐13 2 / 6 / 2 0 1 2 1 5 . 1 5 1 3 8 2 0 5 0 . 5 6 5. 9 9 12 0 0 . 1 6 7 . 1 MW ‐13 6 / 5 / 2 0 1 2 1 6 . 0 1 1 3 9 2 0 2 0 . 0 6 6. 1 8 11 1 < 0 . 0 2 3 4 . 5 MW ‐13 1 0 / 3 / 2 0 1 2 1 8 . 4 6 1 0 0 2 1 8 0 . 5 9 6. 2 8 11 0 < 0 . 0 2 3 3 . 6 MW ‐13 2 / 5 / 2 0 1 3 1 5 . 3 6 1 7 8 2 1 2 0 . 1 9 6. 1 3 13 0 < 0 . 0 2 3 5 . 1 MW ‐13 6 / 3 / 2 0 1 3 1 5 . 8 3 2 3 4 1 8 5 0 . 1 1 5. 9 7 11 0 < 0 . 0 2 3 4 . 2 MW ‐13 1 0 / 1 5 / 2 0 1 3 1 7 . 7 9 2 7 3 1 4 5 0 . 8 3 5. 8 91 0 . 0 7 4 . 7 MW ‐13 2 / 3 / 2 0 1 4 1 5 . 8 6 9 9 3 1 3 0 . 2 2 5. 9 7 24 0 < 0 . 0 2 3 1 1 MW ‐13 6 / 2 / 2 0 1 4 1 4 . 6 5 1 5 3 2 1 5 0 . 2 6. 1 7 13 0 < 0 . 0 2 3 3 . 7 MW ‐13 1 0 / 6 / 2 0 1 4 1 6 . 9 1 6 3 2 0 8 0 . 5 4 6. 1 3 10 0 < 0 . 0 2 3 3 . 6 MW ‐13 2 / 2 / 2 0 1 5 1 5 . 0 7 1 5 7 2 6 6 1 . 0 1 5. 8 6 18 0 < 0 . 0 2 3 6 . 9 MW ‐13 6 / 1 / 2 0 1 5 1 5 . 5 5 1 5 5 2 1 9 0 . 7 8 6. 1 6 12 0 < 0 . 0 2 3 4 . 3 MW ‐13 1 0 / 6 / 2 0 1 5 1 7 . 4 8 1 4 7 2 0 4 0 . 3 5 6. 3 2 11 0 < 0 . 0 2 3 3 . 7 MW ‐13 2 / 1 / 2 0 1 6 1 5 . 1 3 6 1 2 3 8 0 5. 7 6 16 0 < 0 . 0 2 3 7 . 6 MW ‐13 6 / 6 / 2 0 1 6 1 6 . 1 7 1 4 1 2 0 5 0 . 5 4 6. 2 6 ‐‐ ‐ ‐ ‐ ‐ MW ‐14 1 2 / 6 / 2 0 1 0 1 5 . 1 3 ‐‐ 17 5 . 3 ‐‐ 6. 8 6 1 4 0 0 . 3 5 6 . 6 MW ‐14 2 / 1 / 2 0 1 1 1 4 . 2 3 ‐‐ 19 4 . 1 ‐‐ 6. 9 5 1 4 0 < 0 . 1 6 . 9 Pa g e  5  of  18 Riverbend  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 ‐14 6 / 7 / 2 0 1 1 1 7 . 2 2 ‐‐ 21 5 . 8 ‐‐ 6. 7 9 1 8 0 0 . 0 6 8 . 2 MW ‐14 1 0 / 4 / 2 0 1 1 1 7 . 1 8 ‐‐ 19 6 . 1 ‐‐ 6. 8 1 2 0 0 . 0 9 7 . 6 MW ‐14 2 / 6 / 2 0 1 2 1 5 . 1 2 2 2 5 2 0 3 0 . 9 8 6 . 8 1 1 5 0 0 . 0 6 9 . 5 MW ‐14 6 / 5 / 2 0 1 2 1 5 . 6 9 2 6 2 1 9 9 0 . 4 2 6 . 7 1 1 4 8 0 . 0 7 9 . 6 MW ‐14 1 0 / 3 / 2 0 1 2 1 7 . 9 4 2 0 9 1 9 7 0 . 5 2 6 . 7 3 1 5 0 0 . 0 8 7 . 3 MW ‐14 2 / 4 / 2 0 1 3 1 5 . 3 4 2 3 0 2 1 4 1 . 8 5 6 . 7 9 1 5 0 0 . 0 7 9 . 2 MW ‐14 6 / 3 / 2 0 1 3 1 6 . 0 7 3 1 0 2 0 5 0 . 5 2 6 . 8 5 1 4 0 < 0 . 0 2 3 8 . 4 MW ‐14 1 0 / 1 5 / 2 0 1 3 1 7 . 6 8 3 1 9 2 0 2 0 . 3 3 6 . 6 3 1 4 0 < 0 . 0 2 3 8 MW ‐14 2 / 3 / 2 0 1 4 1 4 . 6 4 3 4 9 2 1 4 0 . 7 9 6 . 7 4 1 8 0 < 0 . 0 2 3 9 . 2 MW ‐14 6 / 2 / 2 0 1 4 1 4 . 8 3 2 9 8 1 9 9 0 . 4 9 6 . 7 3 1 4 0 < 0 . 0 2 3 7 . 9 MW ‐14 1 0 / 6 / 2 0 1 4 1 7 . 0 3 2 9 8 1 9 9 0 . 3 6 6 . 6 4 1 3 0 < 0 . 0 2 3 7 . 3 MW ‐14 2 / 2 / 2 0 1 5 1 4 . 0 1 2 6 7 2 3 2 1 . 8 5 6 . 6 4 1 5 0 < 0 . 0 2 3 1 1 MW ‐14 6 / 1 / 2 0 1 5 1 5 . 6 2 6 4 2 0 8 0 . 6 6 6 . 7 6 1 6 0 < 0 . 0 2 3 7 . 4 MW ‐14 1 0 / 6 / 2 0 1 5 1 7 . 5 8 2 1 7 2 0 8 0 . 6 4 6 . 6 1 1 3 0 0 . 0 5 7 . 2 MW ‐14 2 / 1 / 2 0 1 6 1 4 . 8 4 2 1 5 2 0 0 0 6 . 6 3 1 5 0 0 . 0 5 2 . 5 MW ‐14 6 / 6 / 2 0 1 6 1 5 . 8 7 9 9 2 0 9 0 . 2 3 6 . 6 1 ‐‐ ‐ ‐ ‐ ‐ MW ‐15 2 / 2 3 / 2 0 1 1 1 5 . 4 8 4 2 4 1 0 9 . 5 2 . 2 1 5. 2 9 84 0 . 2 3 7 . 1 MW ‐15 6 / 6 / 2 0 1 1 1 7 . 1 5 ‐‐ 10 6 . 7 ‐‐ 5. 2 1 11 0 0 . 1 9 6 . 4 MW ‐15 1 0 / 3 / 2 0 1 1 1 6 . 9 4 ‐‐ 10 6 . 2 ‐‐ 5. 1 6 75 0 . 1 8 6 . 5 MW ‐15 2 / 6 / 2 0 1 2 1 5 . 6 3 3 6 0 9 6 2 . 1 2 5. 1 9 84 0 . 1 4 6 . 7 MW ‐15 6 / 5 / 2 0 1 2 1 5 . 9 3 4 2 2 1 0 3 0 . 9 1 5. 0 7 77 0 . 1 5 6 . 6 MW ‐15 1 0 / 3 / 2 0 1 2 1 8 . 0 2 3 8 3 1 0 2 2 . 3 7 5. 2 4 77 0 . 1 3 6 . 5 MW ‐15 2 / 4 / 2 0 1 3 1 6 . 2 5 3 3 0 1 0 0 1 . 3 9 5. 2 81 0 . 1 1 6 . 4 MW ‐15 6 / 3 / 2 0 1 3 1 6 . 1 1 4 1 8 1 0 2 0 . 6 7 5. 1 81 0 . 0 9 6 . 7 MW ‐15 1 0 / 1 4 / 2 0 1 3 1 7 . 6 6 2 0 7 1 0 3 0 . 8 3 5. 1 9 81 0 . 1 1 6 . 8 MW ‐15 2 / 3 / 2 0 1 4 1 6 . 8 9 3 8 6 9 9 1 . 6 9 5. 0 6 12 0 0 . 0 7 7 . 1 MW ‐15 6 / 2 / 2 0 1 4 1 5 . 1 8 4 3 3 1 0 1 0 . 9 8 5. 0 5 83 0 . 0 5 6 . 6 MW ‐15 1 0 / 6 / 2 0 1 4 1 6 . 8 8 1 3 1 1 0 1 2 . 0 9 5. 1 1 71 0 . 0 6 6 . 7 MW ‐15 2 / 2 / 2 0 1 5 1 5 . 7 3 1 2 1 0 2 2 . 7 9 5. 0 7 77 0 . 0 4 6 . 6 MW ‐15 6 / 1 / 2 0 1 5 1 5 . 7 8 3 6 9 1 0 5 1 . 6 4 5. 1 90 0 . 0 4 6 MW ‐15 1 0 / 6 / 2 0 1 5 1 7 . 4 3 3 0 1 1 0 4 1 . 9 3 5. 1 8 76 0 . 0 7 6 . 4 MW ‐15 2 / 1 / 2 0 1 6 1 6 . 2 2 2 5 1 9 2 1 . 7 9 5. 2 86 0 . 0 5 2 . 7 MW ‐15 6 / 6 / 2 0 1 6 1 6 . 1 3 6 9 1 0 8 2 . 5 8 5. 2 3 ‐‐ ‐ ‐ ‐ ‐ 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  an d  Wa t e r  Qu a l i t y  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  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   °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 Riverbend  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 ‐1S 1 2 / 1 6 / 2 0 0 8 MW ‐1S 6 / 2 2 / 2 0 0 9 MW ‐1S 1 2 / 1 4 / 2 0 0 9 MW ‐1S 6 / 2 8 / 2 0 1 0 MW ‐1D 1 2 / 1 6 / 2 0 0 8 MW ‐1D 6 / 2 2 / 2 0 0 9 MW ‐1D 1 2 / 1 4 / 2 0 0 9 MW ‐1D 6 / 2 8 / 2 0 1 0 MW ‐2S 1 2 / 1 6 / 2 0 0 8 MW ‐2S 6 / 2 2 / 2 0 0 9 MW ‐2S 1 2 / 1 4 / 2 0 0 9 MW ‐2S 6 / 2 8 / 2 0 1 0 MW ‐2D 1 2 / 1 6 / 2 0 0 8 MW ‐2D 6 / 2 2 / 2 0 0 9 MW ‐2D 1 2 / 1 4 / 2 0 0 9 MW ‐2D 6 / 2 8 / 2 0 1 0 MW ‐3S 1 2 / 1 6 / 2 0 0 8 MW ‐3S 6 / 2 2 / 2 0 0 9 MW ‐3S 1 2 / 1 4 / 2 0 0 9 MW ‐3S 6 / 2 8 / 2 0 1 0 MW ‐3D 1 2 / 1 6 / 2 0 0 8 MW ‐3D 6 / 2 2 / 2 0 0 9 MW ‐3D 1 2 / 1 4 / 2 0 0 9 MW ‐3D 6 / 2 8 / 2 0 1 0 MW ‐4S 1 2 / 1 6 / 2 0 0 8 MW ‐4S 6 / 2 2 / 2 0 0 9 MW ‐4S 1 2 / 1 4 / 2 0 0 9 MW ‐4S 6 / 2 8 / 2 0 1 0 MW ‐4S 2 / 5 / 2 0 1 3 MW ‐4S 1 0 / 1 5 / 2 0 1 3 MW ‐4S 2 / 4 / 2 0 1 4 MW ‐4S 6 / 3 / 2 0 1 4 MW ‐4S 1 0 / 7 / 2 0 1 4 MW ‐4S 2 / 3 / 2 0 1 5 MW ‐4S 6 / 1 / 2 0 1 5 MW ‐4S 1 0 / 8 / 2 0 1 5 MW ‐4S 2 / 2 / 2 0 1 6 MW ‐4S 6 / 6 / 2 0 1 6 MW ‐4D 1 2 / 1 6 / 2 0 0 8 MW ‐4D 6 / 2 2 / 2 0 0 9 MW ‐4D 1 2 / 1 4 / 2 0 0 9 MW ‐4D 6 / 2 8 / 2 0 1 0 MW ‐4D 2 / 5 / 2 0 1 3 MW ‐4D 1 0 / 1 5 / 2 0 1 3 MW ‐4D 2 / 4 / 2 0 1 4 MW ‐4D 6 / 3 / 2 0 1 4 MW ‐4D 1 0 / 7 / 2 0 1 4 MW ‐4D 2 / 3 / 2 0 1 5 MW ‐4D 6 / 1 / 2 0 1 5 MW ‐4D 1 0 / 8 / 2 0 1 5 MW ‐4D 2 / 2 / 2 0 1 6 MW ‐4D 6 / 6 / 2 0 1 6 MW ‐5S 1 2 / 1 6 / 2 0 0 8 MW ‐5S 6 / 2 2 / 2 0 0 9 MW ‐5S 1 2 / 1 4 / 2 0 0 9 MW ‐5S 6 / 2 8 / 2 0 1 0 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 1. 1 < 2 2 5 1 7 6 < 0 . 5 < 1 < 0 . 0 0 2 33800 2. 1 < 1 2 0 1 6 4 < 1 < 1 0 . 0 0 2 29100 3 < 1 2 2 . 3 2 2 8 < 1 < 1 < 0 . 0 0 1 31200 <1 < 1 2 1 1 9 9 < 1 < 1 < 0 . 0 0 1 30700 95 < 2 3 3 5 5 2 < 0 . 5 < 1 < 0 . 0 0 2 8 8 11 0 < 1 3 1 5 0 9 < 1 < 1 < 0 . 0 0 1 4 2 95 < 1 3 2 . 9 6 0 9 < 1 < 1 < 0 . 0 0 1 2 8 . 2 11 0 < 1 3 1 . 7 6 0 4 < 1 < 1 < 0 . 0 0 1 < 1 0 45 < 2 6 9 3 8 7 < 0 . 5 < 1 0 . 0 0 4 2 1 51 < 1 5 1 2 5 4 < 1 < 1 0 . 0 0 3 2 6 42 < 1 6 4 . 1 3 3 2 < 1 < 1 0 . 0 0 4 1 6 . 4 49 < 1 5 7 . 3 2 5 4 < 1 < 1 0 . 0 0 4 1 4 . 3 0. 5 4 < 2 2 9 < 1 0 0 < 0 . 5 1 . 7 1 < 0 . 0 0 2 525 0. 3 3 < 1 2 6 < 1 0 0 < 1 1 . 6 8 < 0 . 0 0 1 2 6 2 0. 3 < 1 2 5 . 7 < 5 0 < 1 1 . 5 0 . 0 0 2 376 28 < 1 2 2 . 8 < 5 0 < 1 1 . 4 < 0 . 0 0 1 4 4 . 5 33 < 2 4 2 2 4 1 < 0 . 5 < 1 < 0 . 0 0 2 3390 37 < 1 3 7 2 3 4 < 1 < 1 < 0 . 0 0 1 3760 31 < 1 4 2 . 3 2 4 5 < 1 < 1 < 0 . 0 0 1 5710 <1 0 < 1 4 2 . 4 2 5 9 < 1 < 1 < 0 . 0 0 1 4510 26 < 2 8 2 5 9 < 0 . 5 1 . 2 2 < 0 . 0 0 2 6 8 34 < 1 8 2 3 3 < 1 1 . 2 5 < 0 . 0 0 1 < 1 0 26 < 1 < 5 2 7 1 < 1 1 . 3 < 0 . 0 0 1 1 1 . 2 34 < 1 8 . 0 9 2 6 3 < 1 1 . 3 0 . 0 0 1 2 9 . 4 30 < 2 1 7 3 0 4 < 0 . 5 2 . 4 3 < 0 . 0 0 2 370 33 < 1 1 6 2 8 7 < 1 3 . 0 8 0 . 0 0 1 2 8 7 27 < 1 2 2 3 4 0 < 1 2 . 8 < 0 . 0 0 1 654 34 < 1 2 1 . 7 3 2 8 < 1 3 . 3 < 0 . 0 0 1 2 2 1 44 < 5 2 6 2 3 6 1 < 5 18 0.016 11200 31 < 1 2 8 3 3 7 < 1 < 5 < 0 . 0 0 5 5 0 30 < 1 2 6 3 3 1 < 1 < 5 < 0 . 0 0 5 2 8 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 29 < 1 3 0 3 4 1 < 1 < 5 < 0 . 0 0 5 1020 30 < 1 3 6 3 5 3 < 1 < 5 < 0 . 0 0 5 1890 33 < 1 3 0 3 4 8 < 1 < 5 < 0 . 0 0 5 4 8 ‐‐ <1 0 1 6 7 3 7 8 < 1 0 20 0.013 21900 58 2 . 4 1 0 5 4 5 5 < 1 15 0.009 16700 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 33 < 2 9 1 2 5 8 < 0 . 5 1 . 5 9 < 0 . 0 0 2 2640 40 < 1 7 9 2 3 0 < 1 1 . 5 2 < 0 . 0 0 1 2050 33 < 1 8 2 . 5 2 6 8 < 1 1 . 4 < 0 . 0 0 1 1970 41 < 1 9 4 . 8 2 5 9 < 1 2 . 2 0 . 0 0 2 2720 33 < 1 7 4 2 5 1 < 1 < 5 < 0 . 0 0 5 1080 35 < 1 6 8 2 7 0 < 1 < 5 < 0 . 0 0 5 786 34 < 1 7 2 2 8 4 < 1 < 5 < 0 . 0 0 5 1250 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 34 < 1 7 7 2 8 5 < 1 < 5 < 0 . 0 0 5 2040 33 < 1 7 1 2 8 9 < 1 < 5 < 0 . 0 0 5 1230 34 < 1 7 4 2 9 4 < 1 < 5 < 0 . 0 0 5 1160 33 < 1 7 1 2 9 7 < 1 < 5 < 0 . 0 0 5 680 31 < 1 7 3 3 0 4 < 1 < 5 < 0 . 0 0 5 1010 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 3. 4 < 2 1 4 1 7 2 < 0 . 5 < 1 < 0 . 0 0 2 8 7 5. 1 < 1 1 3 1 4 9 < 1 < 1 < 0 . 0 0 1 6 3 3. 6 < 1 1 5 . 1 1 5 9 < 1 < 1 < 0 . 0 0 1 2 8 . 4 31 < 1 1 5 . 1 1 3 8 < 1 < 1 0 . 0 0 1 3 0 . 7 Pa g e  7  of  18 Riverbend  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 ‐5S 1 2 / 6 / 2 0 1 0 MW ‐5S 2 / 1 / 2 0 1 1 MW ‐5S 6 / 7 / 2 0 1 1 MW ‐5S 1 0 / 4 / 2 0 1 1 MW ‐5S 2 / 4 / 2 0 1 3 MW ‐5S 1 0 / 1 5 / 2 0 1 3 MW ‐5S 2 / 4 / 2 0 1 4 MW ‐5S 6 / 3 / 2 0 1 4 MW ‐5S 1 0 / 7 / 2 0 1 4 MW ‐5S 2 / 3 / 2 0 1 5 MW ‐5S 6 / 2 / 2 0 1 5 MW ‐5S 1 0 / 8 / 2 0 1 5 MW ‐5S 2 / 2 / 2 0 1 6 MW ‐5S 6 / 6 / 2 0 1 6 MW ‐5D 1 2 / 1 6 / 2 0 0 8 MW ‐5D 6 / 2 2 / 2 0 0 9 MW ‐5D 1 2 / 1 4 / 2 0 0 9 MW ‐5D 6 / 2 8 / 2 0 1 0 MW ‐5D 2 / 4 / 2 0 1 3 MW ‐5D 1 0 / 1 5 / 2 0 1 3 MW ‐5D 2 / 4 / 2 0 1 4 MW ‐5D 6 / 3 / 2 0 1 4 MW ‐5D 1 0 / 7 / 2 0 1 4 MW ‐5D 2 / 3 / 2 0 1 5 MW ‐5D 6 / 2 / 2 0 1 5 MW ‐5D 1 0 / 8 / 2 0 1 5 MW ‐5D 2 / 2 / 2 0 1 6 MW ‐5D 6 / 6 / 2 0 1 6 MW ‐6S 1 2 / 1 6 / 2 0 0 8 MW ‐6S 6 / 2 2 / 2 0 0 9 MW ‐6S 1 2 / 1 4 / 2 0 0 9 MW ‐6S 6 / 2 8 / 2 0 1 0 MW ‐6S 1 2 / 6 / 2 0 1 0 MW ‐6S 2 / 1 / 2 0 1 1 MW ‐6S 6 / 7 / 2 0 1 1 MW ‐6S 1 0 / 4 / 2 0 1 1 MW ‐6D 1 2 / 1 6 / 2 0 0 8 MW ‐6D 6 / 2 2 / 2 0 0 9 MW ‐6D 1 2 / 1 4 / 2 0 0 9 MW ‐6D 6 / 2 8 / 2 0 1 0 MW ‐7S R 1 2 / 6 / 2 0 1 0 MW ‐7S R 2 / 2 / 2 0 1 1 MW ‐7S R 6 / 6 / 2 0 1 1 MW ‐7S R 1 0 / 4 / 2 0 1 1 MW ‐7S R 2 / 2 2 / 2 0 1 2 MW ‐7S R 6 / 5 / 2 0 1 2 MW ‐7S R 1 0 / 3 / 2 0 1 2 MW ‐7S R 2 / 4 / 2 0 1 3 MW ‐7S R 6 / 3 / 2 0 1 3 MW ‐7S R 1 0 / 1 4 / 2 0 1 3 MW ‐7S R 2 / 5 / 2 0 1 4 MW ‐7S R 6 / 2 / 2 0 1 4 MW ‐7S R 1 0 / 6 / 2 0 1 4 MW ‐7S R 2 / 2 / 2 0 1 5 MW ‐7S R 6 / 1 / 2 0 1 5 MW ‐7S R 1 0 / 7 / 2 0 1 5 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 11 < 1 2 1 3 3 6 < 1 < 5 < 0 . 0 0 5 1 5 5 13 < 1 2 4 4 2 1 < 1 < 5 < 0 . 0 0 5 371 14 < 1 2 5 4 7 0 < 1 < 5 < 0 . 0 0 5 551 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 13 < 1 2 6 4 2 2 < 1 < 5 < 0 . 0 0 5 1 3 4 13 < 1 2 6 4 3 8 < 1 < 5 < 0 . 0 0 5 8 8 13 < 1 3 0 4 4 7 < 1 < 5 < 0 . 0 0 5 5 8 8. 8 < 1 1 7 3 1 2 < 1 < 5 < 0 . 0 0 5 1 4 11 < 1 2 9 4 0 9 < 1 < 5 < 0 . 0 0 5 339 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 50 < 2 3 7 2 2 7 < 0 . 5 1 . 8 9 < 0 . 0 0 2 2 3 61 < 1 3 4 2 1 3 < 1 2 . 0 5 0 . 0 0 9 < 1 0 51 < 1 3 6 2 5 8 < 1 2 . 1 < 0 . 0 0 1 1 2 64 < 1 3 5 2 6 3 < 1 2 . 3 0 . 0 0 2 1 1 . 5 47 < 1 3 4 3 3 7 < 1 < 5 < 0 . 0 0 5 2 0 8 50 < 1 3 4 3 5 7 < 1 < 5 < 0 . 0 0 5 1 2 9 47 < 1 3 3 3 8 4 < 1 < 5 < 0 . 0 0 5 4 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 47 < 1 3 5 3 9 3 < 1 < 5 < 0 . 0 0 5 508 46 < 1 3 3 4 1 7 < 1 < 5 < 0 . 0 0 5 1 8 2 45 < 1 3 8 4 1 2 < 1 < 5 < 0 . 0 0 5 1110 45 < 1 3 3 4 2 9 < 1 < 5 < 0 . 0 0 5 2 1 44 < 1 3 3 4 5 2 < 1 < 5 < 0 . 0 0 5 5 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 36 < 2 1 3 2 1 4 < 0 . 5 1 . 5 3 < 0 . 0 0 2 1230 44 < 1 9 1 9 4 < 1 1 . 3 6 < 0 . 0 0 1 1 6 7 37 < 1 9 . 4 4 2 3 6 < 1 < 1 < 0 . 0 0 1 328 47 < 1 8 . 8 2 3 3 < 1 < 1 < 0 . 0 0 1 1 4 4 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 35 < 2 8 3 0 7 < 0 . 5 < 1 < 0 . 0 0 2 7 5 44 < 1 8 2 7 0 < 1 < 1 0 . 0 0 2 3 9 36 < 1 8 3 1 9 < 1 < 1 < 0 . 0 0 1 7 0 38 < 1 7 . 6 2 9 8 < 1 < 1 0 . 0 0 1 5 3 . 4 0. 9 7 < 1 2 9 < 5 0 < 1 < 5 < 0 . 0 0 5 1 2 5 0. 2 2 < 1 2 0 < 5 0 < 1 < 5 < 0 . 0 0 5 790 0. 1 7 < 1 2 1 < 5 0 < 1 < 5 < 0 . 0 0 5 495 0. 1 7 < 1 1 8 < 5 0 < 1 < 5 < 0 . 0 0 5 532 <1 < 1 1 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2 8 5 0. 1 3 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 520 0. 1 9 < 1 1 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2 2 1 0. 2 1 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 5 8 0. 1 5 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 5 5 0. 1 6 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 445 0. 1 6 < 1 1 2 < 5 0 < 1 < 5 < 0 . 0 0 5 1 6 6 0. 1 2 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 1 7 0. 1 4 < 1 1 3 < 5 0 < 1 < 5 < 0 . 0 0 5 1 1 0 0. 1 7 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 5 4 0. 1 8 < 1 3 0 < 5 0 < 1 14 0.013 558 0. 1 3 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 7 0 Pa g e  8  of  18 Riverbend  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 ‐7S R 2 / 1 / 2 0 1 6 MW ‐7S R 6 / 6 / 2 0 1 6 MW ‐7D 1 2 / 1 6 / 2 0 0 8 MW ‐7D 6 / 2 2 / 2 0 0 9 MW ‐7D 1 2 / 1 4 / 2 0 0 9 MW ‐7D 6 / 2 8 / 2 0 1 0 MW ‐7D 1 2 / 6 / 2 0 1 0 MW ‐7D 2 / 2 / 2 0 1 1 MW ‐7D 6 / 6 / 2 0 1 1 MW ‐7D 1 0 / 4 / 2 0 1 1 MW ‐7D 2 / 2 2 / 2 0 1 2 MW ‐7D 6 / 5 / 2 0 1 2 MW ‐7D 1 0 / 3 / 2 0 1 2 MW ‐7D 2 / 4 / 2 0 1 3 MW ‐7D 6 / 3 / 2 0 1 3 MW ‐7D 1 0 / 1 4 / 2 0 1 3 MW ‐7D 2 / 5 / 2 0 1 4 MW ‐7D 6 / 2 / 2 0 1 4 MW ‐7D 1 0 / 6 / 2 0 1 4 MW ‐7D 2 / 2 / 2 0 1 5 MW ‐7D 6 / 1 / 2 0 1 5 MW ‐7D 1 0 / 7 / 2 0 1 5 MW ‐7D 2 / 1 / 2 0 1 6 MW ‐7D 6 / 6 / 2 0 1 6 MW ‐8S 1 2 / 6 / 2 0 1 0 MW ‐8S 2 / 1 / 2 0 1 1 MW ‐8S 6 / 7 / 2 0 1 1 MW ‐8S 1 0 / 3 / 2 0 1 1 MW ‐8S 2 / 6 / 2 0 1 2 MW ‐8S 6 / 4 / 2 0 1 2 MW ‐8S 1 0 / 3 / 2 0 1 2 MW ‐8S 2 / 4 / 2 0 1 3 MW ‐8S 6 / 3 / 2 0 1 3 MW ‐8S 1 0 / 1 4 / 2 0 1 3 MW ‐8S 2 / 4 / 2 0 1 4 MW ‐8S 6 / 2 / 2 0 1 4 MW ‐8S 1 0 / 6 / 2 0 1 4 MW ‐8S 2 / 2 / 2 0 1 5 MW ‐8S 6 / 1 / 2 0 1 5 MW ‐8S 1 0 / 7 / 2 0 1 5 MW ‐8S 2 / 1 / 2 0 1 6 MW ‐8S 6 / 6 / 2 0 1 6 MW ‐8I 1 2 / 6 / 2 0 1 0 MW ‐8I 2 / 1 / 2 0 1 1 MW ‐8I 6 / 7 / 2 0 1 1 MW ‐8I 1 0 / 3 / 2 0 1 1 MW ‐8I 2 / 6 / 2 0 1 2 MW ‐8I 6 / 4 / 2 0 1 2 MW ‐8I 1 0 / 3 / 2 0 1 2 MW ‐8I 2 / 4 / 2 0 1 3 MW ‐8I 6 / 3 / 2 0 1 3 MW ‐8I 1 0 / 1 4 / 2 0 1 3 MW ‐8I 2 / 4 / 2 0 1 4 MW ‐8I 6 / 2 / 2 0 1 4 MW ‐8I 1 0 / 6 / 2 0 1 4 MW ‐8I 2 / 2 / 2 0 1 5 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 0. 1 6 < 1 1 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 1 6 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0. 2 7 < 2 2 5 < 1 0 0 < 0 . 5 < 1 < 0 . 0 0 2 1 1 0. 3 1 < 1 2 4 < 1 0 0 < 1 < 1 < 0 . 0 0 1 1 0 0. 2 2 < 1 2 5 < 5 0 < 1 < 1 < 0 . 0 0 1 < 1 0 <1 < 1 2 5 . 1 < 5 0 < 1 < 1 0 . 0 0 1 < 1 0 0. 2 2 < 1 2 5 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 1 < 1 2 5 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 1 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 2 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 <1 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 9 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 5 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 8 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 2 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 8 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 5 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 6 < 1 2 6 < 5 0 < 1 < 5 < 0 . 0 0 5 2 6 0. 1 6 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 0. 1 4 < 1 2 8 < 5 0 < 1 < 5 < 0 . 0 0 5 2 0 0. 1 4 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 3 5 0. 1 4 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 < 1 0 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0. 5 8 < 1 4 7 < 5 0 < 1 < 5 < 0 . 0 0 5 5 3 0. 3 9 < 1 4 8 < 5 0 < 1 < 5 < 0 . 0 0 5 4 1 0. 2 6 < 1 5 1 < 5 0 < 1 < 5 < 0 . 0 0 5 7 3 0. 2 5 < 1 5 1 < 5 0 < 1 < 5 < 0 . 0 0 5 1 6 0. 1 6 < 1 5 0 < 5 0 < 1 < 5 < 0 . 0 0 5 5 8 0. 1 9 < 1 5 3 < 5 0 < 1 < 5 < 0 . 0 0 5 2 4 0. 1 8 < 1 5 2 < 5 0 < 1 < 5 < 0 . 0 0 5 1 9 0. 1 7 < 1 5 1 < 5 0 < 1 < 5 < 0 . 0 0 5 1 2 0. 1 5 < 1 5 5 < 5 0 < 1 < 5 < 0 . 0 0 5 7 1 0. 1 8 < 1 5 7 < 5 0 < 1 < 5 < 0 . 0 0 5 6 8 0. 1 5 < 1 5 6 < 5 0 < 1 < 5 < 0 . 0 0 5 9 0 0. 1 6 < 1 5 8 < 5 0 < 1 < 5 < 0 . 0 0 5 2 3 0. 1 9 < 1 5 8 < 5 0 < 1 < 5 < 0 . 0 0 5 1 4 0. 2 3 < 1 5 7 < 5 0 < 1 < 5 < 0 . 0 0 5 7 7 0. 2 8 < 1 6 1 < 5 0 < 1 < 5 < 0 . 0 0 5 1 7 7 0. 1 6 < 1 5 7 < 5 0 < 1 < 5 < 0 . 0 0 5 1 7 2 0. 2 2 < 1 5 8 5 3 < 1 < 5 < 0 . 0 0 5 1 2 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0. 6 6 < 1 5 3 < 5 0 < 1 < 5 < 0 . 0 0 5 787 1. 2 < 1 4 8 < 5 0 < 1 < 5 < 0 . 0 0 5 643 1. 2 < 1 4 1 < 5 0 < 1 < 5 < 0 . 0 0 5 812 1. 1 < 1 4 4 < 5 0 < 1 < 5 < 0 . 0 0 5 942 0. 5 7 < 1 4 0 < 5 0 < 1 < 5 < 0 . 0 0 5 976 0. 4 6 < 1 3 8 < 5 0 < 1 < 5 < 0 . 0 0 5 853 0. 3 5 < 1 3 7 < 5 0 < 1 < 5 < 0 . 0 0 5 618 0. 2 7 < 1 3 5 < 5 0 < 1 < 5 < 0 . 0 0 5 497 0. 2 5 < 1 3 0 < 5 0 < 1 < 5 < 0 . 0 0 5 593 0. 2 6 < 1 2 9 < 5 0 < 1 < 5 < 0 . 0 0 5 436 0. 2 4 < 1 2 9 < 5 0 < 1 < 5 < 0 . 0 0 5 618 0. 2 1 < 1 3 1 < 5 0 < 1 < 5 < 0 . 0 0 5 629 0. 2 1 < 1 4 3 < 5 0 < 1 < 5 0 . 0 0 7 2460 0. 2 2 < 1 4 4 < 5 0 < 1 < 5 0 . 0 0 8 2510 Pa g e  9  of  18 Riverbend  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 ‐8I 6 / 1 / 2 0 1 5 MW ‐8I 1 0 / 7 / 2 0 1 5 MW ‐8I 2 / 1 / 2 0 1 6 MW ‐8I 6 / 6 / 2 0 1 6 MW ‐8D 1 2 / 6 / 2 0 1 0 MW ‐8D 2 / 1 / 2 0 1 1 MW ‐8D 6 / 7 / 2 0 1 1 MW ‐8D 1 0 / 3 / 2 0 1 1 MW ‐8D 2 / 6 / 2 0 1 2 MW ‐8D 6 / 4 / 2 0 1 2 MW ‐8D 1 0 / 3 / 2 0 1 2 MW ‐8D 2 / 4 / 2 0 1 3 MW ‐8D 6 / 3 / 2 0 1 3 MW ‐8D 1 0 / 1 4 / 2 0 1 3 MW ‐8D 2 / 4 / 2 0 1 4 MW ‐8D 6 / 2 / 2 0 1 4 MW ‐8D 1 0 / 6 / 2 0 1 4 MW ‐8D 2 / 2 / 2 0 1 5 MW ‐8D 6 / 1 / 2 0 1 5 MW ‐8D 1 0 / 7 / 2 0 1 5 MW ‐8D 2 / 1 / 2 0 1 6 MW ‐8D 6 / 6 / 2 0 1 6 MW ‐9 1 2 / 6 / 2 0 1 0 MW ‐9 2 / 1 / 2 0 1 1 MW ‐9 6 / 6 / 2 0 1 1 MW ‐9 1 0 / 4 / 2 0 1 1 MW ‐9 2 / 6 / 2 0 1 2 MW ‐9 6 / 5 / 2 0 1 2 MW ‐9 1 0 / 3 / 2 0 1 2 MW ‐9 2 / 4 / 2 0 1 3 MW ‐9 6 / 4 / 2 0 1 3 MW ‐9 1 0 / 1 5 / 2 0 1 3 MW ‐9 2 / 5 / 2 0 1 4 MW ‐9 6 / 2 / 2 0 1 4 MW ‐9 1 0 / 6 / 2 0 1 4 MW ‐9 2 / 3 / 2 0 1 5 MW ‐9 6 / 2 / 2 0 1 5 MW ‐9 1 0 / 6 / 2 0 1 5 MW ‐9 2 / 1 / 2 0 1 6 MW ‐9 6 / 6 / 2 0 1 6 MW ‐10 1 2 / 6 / 2 0 1 0 MW ‐10 2 / 1 / 2 0 1 1 MW ‐10 6 / 7 / 2 0 1 1 MW ‐10 1 0 / 3 / 2 0 1 1 MW ‐10 2 / 6 / 2 0 1 2 MW ‐10 6 / 4 / 2 0 1 2 MW ‐10 1 0 / 3 / 2 0 1 2 MW ‐10 2 / 4 / 2 0 1 3 MW ‐10 6 / 4 / 2 0 1 3 MW ‐10 1 0 / 1 5 / 2 0 1 3 MW ‐10 2 / 3 / 2 0 1 4 MW ‐10 6 / 2 / 2 0 1 4 MW ‐10 1 0 / 6 / 2 0 1 4 MW ‐10 2 / 2 / 2 0 1 5 MW ‐10 6 / 1 / 2 0 1 5 MW ‐10 1 0 / 6 / 2 0 1 5 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 0. 1 9 < 1 3 8 < 5 0 < 1 < 5 < 0 . 0 0 5 1410 0. 1 8 < 1 3 8 < 5 0 < 1 < 5 < 0 . 0 0 5 1350 0. 2 1 < 1 3 0 < 5 0 < 1 < 5 < 0 . 0 0 5 315 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0. 7 < 1 6 7 < 5 0 < 1 < 5 < 0 . 0 0 5 2640 0. 7 4 < 1 4 3 < 5 0 < 1 < 5 < 0 . 0 0 5 1330 0. 7 1 < 1 3 4 < 5 0 < 1 < 5 < 0 . 0 0 5 777 0. 7 4 < 1 3 9 < 5 0 < 1 < 5 < 0 . 0 0 5 954 0. 6 2 < 1 4 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1480 0. 7 6 < 1 4 6 < 5 0 < 1 < 5 < 0 . 0 0 5 1320 0. 5 3 < 1 4 5 < 5 0 < 1 5 < 0 . 0 0 5 2050 1. 3 < 1 3 6 < 5 0 < 1 < 5 < 0 . 0 0 5 1720 1. 4 < 1 2 7 < 5 0 < 1 < 5 < 0 . 0 0 5 1680 1. 1 < 1 2 3 < 5 0 < 1 < 5 < 0 . 0 0 5 948 0. 9 7 < 1 4 4 < 5 0 < 1 6 < 0 . 0 0 5 4160 0. 8 < 1 3 1 < 5 0 < 1 < 5 < 0 . 0 0 5 2410 0. 5 6 < 1 3 5 < 5 0 < 1 < 5 < 0 . 0 0 5 2750 0. 4 5 < 1 2 5 < 5 0 < 1 < 5 < 0 . 0 0 5 1120 0. 5 5 < 1 2 0 < 5 0 < 1 < 5 < 0 . 0 0 5 658 0. 5 6 < 1 1 9 < 5 0 < 1 < 5 < 0 . 0 0 5 429 0. 6 4 < 1 1 8 < 5 0 < 1 < 5 < 0 . 0 0 5 363 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 23 < 1 8 9 < 5 0 < 1 < 5 < 0 . 0 0 5 2440 22 < 1 6 1 < 5 0 < 1 < 5 < 0 . 0 0 5 1110 24 < 1 6 0 < 5 0 < 1 < 5 < 0 . 0 0 5 1060 23 < 1 5 8 < 5 0 < 1 < 5 < 0 . 0 0 5 464 28 < 1 7 1 < 5 0 < 1 < 5 < 0 . 0 0 5 1870 29 < 1 6 2 < 5 0 < 1 < 5 < 0 . 0 0 5 381 30 < 1 6 5 < 5 0 < 1 < 5 < 0 . 0 0 5 569 32 < 1 7 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1950 35 < 1 7 0 < 5 0 < 1 < 5 < 0 . 0 0 5 1130 35 < 1 6 6 < 5 0 < 1 < 5 < 0 . 0 0 5 341 36 < 1 6 9 < 5 0 < 1 < 5 < 0 . 0 0 5 2 6 3 34 < 1 6 9 < 5 0 < 1 < 5 < 0 . 0 0 5 2 7 2 31 < 1 6 3 < 5 0 < 1 < 5 < 0 . 0 0 5 2 0 9 28 < 1 5 9 < 5 0 < 1 < 5 < 0 . 0 0 5 1 4 0 25 < 1 6 5 < 5 0 < 1 < 5 < 0 . 0 0 5 1620 25 < 1 5 9 < 5 0 < 1 < 5 < 0 . 0 0 5 2 4 8 21 < 1 5 4 < 5 0 < 1 < 5 < 0 . 0 0 5 1 1 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 12 < 1 7 1 1 2 5 < 1 < 5 < 0 . 0 0 5 1710 19 < 1 6 3 1 9 4 < 1 < 5 < 0 . 0 0 5 1420 12 < 1 4 1 1 1 5 < 1 < 5 < 0 . 0 0 5 1 4 7 35 < 1 7 3 3 7 0 < 1 < 5 < 0 . 0 0 5 634 11 < 1 4 4 9 4 < 1 < 5 < 0 . 0 0 5 310 14 < 1 4 1 1 2 3 < 1 < 5 < 0 . 0 0 5 7 2 40 < 1 7 6 3 8 3 < 1 < 5 < 0 . 0 0 5 2 3 5 21 < 1 5 1 1 7 8 < 1 < 5 < 0 . 0 0 5 7 9 11 < 1 4 2 9 6 < 1 < 5 < 0 . 0 0 5 509 38 < 1 7 7 3 5 3 < 1 < 5 < 0 . 0 0 5 2 9 5 18 < 1 4 9 1 4 5 < 1 < 5 < 0 . 0 0 5 2 2 0 16 < 1 4 8 1 2 7 < 1 < 5 < 0 . 0 0 5 921 39 < 1 9 1 3 9 6 < 1 < 5 < 0 . 0 0 5 2 9 1 26 < 1 6 3 2 0 4 < 1 < 5 < 0 . 0 0 5 2 5 2 19 < 1 5 9 1 7 5 < 1 7 < 0 . 0 0 5 301 38 < 1 8 9 4 0 9 < 1 < 5 < 0 . 0 0 5 2 9 8 Pa g e  10  of  18 Riverbend  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 2 / 1 / 2 0 1 6 MW ‐10 6 / 6 / 2 0 1 6 MW ‐11 S R 2 / 1 / 2 0 1 1 MW ‐11 S R 6 / 6 / 2 0 1 1 MW ‐11 S R 1 0 / 3 / 2 0 1 1 MW ‐11 S R 2 / 6 / 2 0 1 2 MW ‐11 S R 6 / 4 / 2 0 1 2 MW ‐11 S R 1 0 / 3 / 2 0 1 2 MW ‐11 S R 2 / 4 / 2 0 1 3 MW ‐11 S R 6 / 3 / 2 0 1 3 MW ‐11 S R 1 0 / 1 4 / 2 0 1 3 MW ‐11 S R 2 / 3 / 2 0 1 4 MW ‐11 S R 6 / 2 / 2 0 1 4 MW ‐11 S R 1 0 / 6 / 2 0 1 4 MW ‐11 S R 2 / 2 / 2 0 1 5 MW ‐11 S R 6 / 1 / 2 0 1 5 MW ‐11 S R 1 0 / 6 / 2 0 1 5 MW ‐11 S R 2 / 1 / 2 0 1 6 MW ‐11 S R 6 / 6 / 2 0 1 6 MW ‐11 D R 2 / 1 / 2 0 1 1 MW ‐11 D R 6 / 6 / 2 0 1 1 MW ‐11 D R 1 0 / 3 / 2 0 1 1 MW ‐11 D R 2 / 6 / 2 0 1 2 MW ‐11 D R 6 / 4 / 2 0 1 2 MW ‐11 D R 1 0 / 3 / 2 0 1 2 MW ‐11 D R 2 / 4 / 2 0 1 3 MW ‐11 D R 6 / 3 / 2 0 1 3 MW ‐11 D R 1 0 / 1 4 / 2 0 1 3 MW ‐11 D R 2 / 3 / 2 0 1 4 MW ‐11 D R 6 / 2 / 2 0 1 4 MW ‐11 D R 1 0 / 6 / 2 0 1 4 MW ‐11 D R 2 / 2 / 2 0 1 5 MW ‐11 D R 6 / 1 / 2 0 1 5 MW ‐11 D R 1 0 / 6 / 2 0 1 5 MW ‐11 D R 2 / 1 / 2 0 1 6 MW ‐11 D R 6 / 6 / 2 0 1 6 MW ‐13 1 2 / 6 / 2 0 1 0 MW ‐13 2 / 1 / 2 0 1 1 MW ‐13 6 / 7 / 2 0 1 1 MW ‐13 1 0 / 4 / 2 0 1 1 MW ‐13 2 / 6 / 2 0 1 2 MW ‐13 6 / 5 / 2 0 1 2 MW ‐13 1 0 / 3 / 2 0 1 2 MW ‐13 2 / 5 / 2 0 1 3 MW ‐13 6 / 3 / 2 0 1 3 MW ‐13 1 0 / 1 5 / 2 0 1 3 MW ‐13 2 / 3 / 2 0 1 4 MW ‐13 6 / 2 / 2 0 1 4 MW ‐13 1 0 / 6 / 2 0 1 4 MW ‐13 2 / 2 / 2 0 1 5 MW ‐13 6 / 1 / 2 0 1 5 MW ‐13 1 0 / 6 / 2 0 1 5 MW ‐13 2 / 1 / 2 0 1 6 MW ‐13 6 / 6 / 2 0 1 6 MW ‐14 1 2 / 6 / 2 0 1 0 MW ‐14 2 / 1 / 2 0 1 1 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 13 < 1 3 6 1 0 6 < 1 < 5 < 0 . 0 0 5 863 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 45 < 1 3 2 3 6 6 < 1 < 5 < 0 . 0 0 5 486 47 < 1 3 1 3 6 5 < 1 < 5 < 0 . 0 0 5 1 3 8 45 < 1 2 9 3 6 8 < 1 < 5 < 0 . 0 0 5 8 7 46 < 1 2 6 3 7 1 < 1 < 5 < 0 . 0 0 5 6 3 45 < 1 2 6 3 6 2 < 1 < 5 < 0 . 0 0 5 3 9 43 < 1 2 5 3 6 8 < 1 < 5 < 0 . 0 0 5 3 0 44 < 1 2 5 3 4 9 < 1 < 5 < 0 . 0 0 5 2 8 44 < 1 2 6 3 9 0 < 1 < 5 < 0 . 0 0 5 3 8 43 < 1 2 6 3 7 9 < 1 < 5 < 0 . 0 0 5 6 7 41 < 1 2 5 3 7 7 < 1 < 5 < 0 . 0 0 5 2 0 41 < 1 2 6 3 6 6 < 1 < 5 < 0 . 0 0 5 6 2 41 < 1 2 5 3 4 6 < 1 < 5 < 0 . 0 0 5 1 0 9 40 < 1 2 4 3 5 2 < 1 < 5 < 0 . 0 0 5 3 3 40 < 1 2 6 3 4 9 < 1 < 5 < 0 . 0 0 5 ‐‐ 41 < 1 2 7 4 1 2 < 1 < 5 < 0 . 0 0 5 4 0 36 < 1 2 3 3 3 9 < 1 < 5 < 0 . 0 0 5 1 0 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 44 < 1 7 5 3 6 2 < 1 < 5 < 0 . 0 0 5 2 1 45 < 1 7 8 3 6 2 < 1 < 5 < 0 . 0 0 5 1 3 42 < 1 7 9 3 6 9 < 1 < 5 < 0 . 0 0 5 < 1 0 45 < 1 7 7 3 7 4 < 1 < 5 < 0 . 0 0 5 1 1 44 < 1 7 8 3 6 6 < 1 < 5 < 0 . 0 0 5 < 1 0 42 < 1 7 6 3 7 2 < 1 < 5 < 0 . 0 0 5 < 1 0 43 < 1 7 5 3 4 2 < 1 < 5 < 0 . 0 0 5 < 1 0 44 < 1 8 1 4 1 3 < 1 < 5 < 0 . 0 0 5 1 1 43 < 1 7 2 3 7 5 < 1 < 5 < 0 . 0 0 5 < 1 0 40 < 1 7 1 3 6 7 < 1 < 5 < 0 . 0 0 5 < 1 0 41 < 1 6 9 3 5 3 < 1 < 5 < 0 . 0 0 5 < 1 0 41 < 1 6 3 3 4 2 < 1 < 5 < 0 . 0 0 5 2 4 40 < 1 6 0 3 4 9 < 1 < 5 < 0 . 0 0 5 2 8 39 < 1 5 8 3 3 4 < 1 < 5 < 0 . 0 0 5 1 0 34 < 1 4 8 3 0 2 < 1 < 5 < 0 . 0 0 5 3 5 34 < 1 4 8 3 2 7 < 1 < 5 < 0 . 0 0 5 < 1 0 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 17 < 1 2 6 0 6 0 < 1 < 5 < 0 . 0 0 5 13500 17 < 1 2 5 0 < 5 0 < 1 < 5 < 0 . 0 0 5 19000 16 < 1 2 3 2 5 2 < 1 < 5 < 0 . 0 0 5 18300 15 < 1 2 9 5 6 2 < 1 < 5 < 0 . 0 0 5 20600 17 < 1 2 0 3 5 4 < 1 < 5 < 0 . 0 0 5 19300 15 < 1 2 1 9 6 1 < 1 < 5 < 0 . 0 0 5 19200 14 < 1 3 0 5 6 5 < 1 < 5 < 0 . 0 0 5 23000 14 < 1 2 8 9 < 5 0 < 1 < 5 < 0 . 0 0 5 21100 16 < 1 2 6 4 6 4 < 1 < 5 < 0 . 0 0 5 16900 17 < 1 1 7 7 5 0 < 1 < 5 < 0 . 0 0 5 7690 29 < 1 3 1 9 < 5 0 < 1 < 5 < 0 . 0 0 5 37700 15 < 1 2 7 5 6 1 < 1 < 5 < 0 . 0 0 5 24200 16 < 1 2 9 8 7 1 < 1 < 5 < 0 . 0 0 5 21000 18 < 1 3 1 5 < 5 0 < 1 < 5 0 . 0 1 9 30300 16 < 1 2 8 2 5 6 < 1 < 5 < 0 . 0 0 5 24100 15 < 1 3 0 7 7 8 < 1 < 5 < 0 . 0 0 5 22500 32 < 1 3 2 0 < 5 0 < 1 < 5 < 0 . 0 0 5 22600 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 32 < 1 1 0 1 4 3 < 1 < 5 < 0 . 0 0 5 554 30 < 1 1 0 1 0 9 < 1 < 5 < 0 . 0 0 5 378 Pa g e  11  of  18 Riverbend  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 ‐14 6 / 7 / 2 0 1 1 MW ‐14 1 0 / 4 / 2 0 1 1 MW ‐14 2 / 6 / 2 0 1 2 MW ‐14 6 / 5 / 2 0 1 2 MW ‐14 1 0 / 3 / 2 0 1 2 MW ‐14 2 / 4 / 2 0 1 3 MW ‐14 6 / 3 / 2 0 1 3 MW ‐14 1 0 / 1 5 / 2 0 1 3 MW ‐14 2 / 3 / 2 0 1 4 MW ‐14 6 / 2 / 2 0 1 4 MW ‐14 1 0 / 6 / 2 0 1 4 MW ‐14 2 / 2 / 2 0 1 5 MW ‐14 6 / 1 / 2 0 1 5 MW ‐14 1 0 / 6 / 2 0 1 5 MW ‐14 2 / 1 / 2 0 1 6 MW ‐14 6 / 6 / 2 0 1 6 MW ‐15 2 / 2 3 / 2 0 1 1 MW ‐15 6 / 6 / 2 0 1 1 MW ‐15 1 0 / 3 / 2 0 1 1 MW ‐15 2 / 6 / 2 0 1 2 MW ‐15 6 / 5 / 2 0 1 2 MW ‐15 1 0 / 3 / 2 0 1 2 MW ‐15 2 / 4 / 2 0 1 3 MW ‐15 6 / 3 / 2 0 1 3 MW ‐15 1 0 / 1 4 / 2 0 1 3 MW ‐15 2 / 3 / 2 0 1 4 MW ‐15 6 / 2 / 2 0 1 4 MW ‐15 1 0 / 6 / 2 0 1 4 MW ‐15 2 / 2 / 2 0 1 5 MW ‐15 6 / 1 / 2 0 1 5 MW ‐15 1 0 / 6 / 2 0 1 5 MW ‐15 2 / 1 / 2 0 1 6 MW ‐15 6 / 6 / 2 0 1 6 25 0 1 0 7 0 0 7 0 0 2 1 0 1 3 0 0 mg / L µ g / L µ g / L µ g / L µ g / L µ g / L m 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 36 < 1 1 0 1 0 4 < 1 < 5 < 0 . 0 0 5 1 7 5 29 < 1 9 1 4 9 < 1 < 5 < 0 . 0 0 5 5 8 35 < 1 1 5 9 6 < 1 6 < 0 . 0 0 5 935 32 < 1 1 2 9 0 < 1 < 5 < 0 . 0 0 5 2 0 6 31 < 1 1 1 1 2 4 < 1 < 5 < 0 . 0 0 5 9 8 35 < 1 1 0 1 0 9 < 1 < 5 < 0 . 0 0 5 1 0 4 27 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 371 27 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 374 30 < 1 1 2 < 5 0 < 1 < 5 < 0 . 0 0 5 660 27 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 686 27 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 472 34 < 1 1 2 < 5 0 < 1 < 5 < 0 . 0 0 5 421 27 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 369 32 < 1 1 1 < 5 0 < 1 < 5 < 0 . 0 0 5 2 3 4 30 < 1 1 2 7 9 < 1 6 < 0 . 0 0 5 949 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 29 < 1 7 1 2 8 4 < 1 5 < 0 . 0 0 5 2 2 7 33 < 1 8 6 2 9 4 < 1 < 5 < 0 . 0 0 5 2 7 4 28 < 1 8 1 3 1 4 < 1 < 5 < 0 . 0 0 5 1 9 8 26 < 1 7 6 3 0 2 < 1 < 5 < 0 . 0 0 5 399 30 < 1 7 8 2 9 0 < 1 < 5 < 0 . 0 0 5 4 5 28 < 1 7 6 3 1 5 < 1 < 5 < 0 . 0 0 5 5 5 27 < 1 7 5 2 8 8 < 1 < 5 < 0 . 0 0 5 5 8 28 < 1 8 0 3 0 5 < 1 < 5 < 0 . 0 0 5 7 4 29 < 1 8 0 3 1 2 < 1 < 5 < 0 . 0 0 5 1 6 8 27 < 1 7 9 2 9 4 < 1 < 5 < 0 . 0 0 5 7 5 28 < 1 8 3 2 7 3 < 1 5 < 0 . 0 0 5 2 3 0 28 < 1 7 9 2 9 5 < 1 < 5 < 0 . 0 0 5 465 28 < 1 7 4 3 0 1 < 1 < 5 < 0 . 0 0 5 7 2 29 < 1 8 7 2 8 4 < 1 9 0 . 0 0 5 1 4 4 30 < 1 8 5 3 1 4 < 1 6 < 0 . 0 0 5 2 3 3 28 < 1 7 4 2 8 2 < 1 < 5 < 0 . 0 0 5 1 0 8 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 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  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  Qu a l i t y  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 Riverbend  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 ‐1S 1 2 / 1 6 / 2 0 0 8 MW ‐1S 6 / 2 2 / 2 0 0 9 MW ‐1S 1 2 / 1 4 / 2 0 0 9 MW ‐1S 6 / 2 8 / 2 0 1 0 MW ‐1D 1 2 / 1 6 / 2 0 0 8 MW ‐1D 6 / 2 2 / 2 0 0 9 MW ‐1D 1 2 / 1 4 / 2 0 0 9 MW ‐1D 6 / 2 8 / 2 0 1 0 MW ‐2S 1 2 / 1 6 / 2 0 0 8 MW ‐2S 6 / 2 2 / 2 0 0 9 MW ‐2S 1 2 / 1 4 / 2 0 0 9 MW ‐2S 6 / 2 8 / 2 0 1 0 MW ‐2D 1 2 / 1 6 / 2 0 0 8 MW ‐2D 6 / 2 2 / 2 0 0 9 MW ‐2D 1 2 / 1 4 / 2 0 0 9 MW ‐2D 6 / 2 8 / 2 0 1 0 MW ‐3S 1 2 / 1 6 / 2 0 0 8 MW ‐3S 6 / 2 2 / 2 0 0 9 MW ‐3S 1 2 / 1 4 / 2 0 0 9 MW ‐3S 6 / 2 8 / 2 0 1 0 MW ‐3D 1 2 / 1 6 / 2 0 0 8 MW ‐3D 6 / 2 2 / 2 0 0 9 MW ‐3D 1 2 / 1 4 / 2 0 0 9 MW ‐3D 6 / 2 8 / 2 0 1 0 MW ‐4S 1 2 / 1 6 / 2 0 0 8 MW ‐4S 6 / 2 2 / 2 0 0 9 MW ‐4S 1 2 / 1 4 / 2 0 0 9 MW ‐4S 6 / 2 8 / 2 0 1 0 MW ‐4S 2 / 5 / 2 0 1 3 MW ‐4S 1 0 / 1 5 / 2 0 1 3 MW ‐4S 2 / 4 / 2 0 1 4 MW ‐4S 6 / 3 / 2 0 1 4 MW ‐4S 1 0 / 7 / 2 0 1 4 MW ‐4S 2 / 3 / 2 0 1 5 MW ‐4S 6 / 1 / 2 0 1 5 MW ‐4S 1 0 / 8 / 2 0 1 5 MW ‐4S 2 / 2 / 2 0 1 6 MW ‐4S 6 / 6 / 2 0 1 6 MW ‐4D 1 2 / 1 6 / 2 0 0 8 MW ‐4D 6 / 2 2 / 2 0 0 9 MW ‐4D 1 2 / 1 4 / 2 0 0 9 MW ‐4D 6 / 2 8 / 2 0 1 0 MW ‐4D 2 / 5 / 2 0 1 3 MW ‐4D 1 0 / 1 5 / 2 0 1 3 MW ‐4D 2 / 4 / 2 0 1 4 MW ‐4D 6 / 3 / 2 0 1 4 MW ‐4D 1 0 / 7 / 2 0 1 4 MW ‐4D 2 / 3 / 2 0 1 5 MW ‐4D 6 / 1 / 2 0 1 5 MW ‐4D 1 0 / 8 / 2 0 1 5 MW ‐4D 2 / 2 / 2 0 1 6 MW ‐4D 6 / 6 / 2 0 1 6 MW ‐5S 1 2 / 1 6 / 2 0 0 8 MW ‐5S 6 / 2 2 / 2 0 0 9 MW ‐5S 1 2 / 1 4 / 2 0 0 9 MW ‐5S 6 / 2 8 / 2 0 1 0 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) <2 33 0 0 ‐‐ <2 0 . 0 0 7 ‐‐ <2 < 0 . 0 5 4 9 . 3 <1 29 5 0 ‐‐ <1 0 . 0 0 7 ‐‐ <1 < 0 . 0 5 1 9 . 3 <1 31 3 0 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 9 . 5 9 <1 28 8 0 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 6 . 9 1 <2 43 9 ‐‐ 4. 9 2 0 . 0 0 6 ‐‐ <2 < 0 . 0 5 3 . 1 <1 43 3 ‐‐ 5. 4 8 0 . 0 0 7 ‐‐ <1 < 0 . 0 5 2 . 2 5 <1 47 6 ‐‐ 5. 4 0 . 0 0 9 ‐‐ <1 < 0 . 0 5 1 . 2 7 <1 47 8 ‐‐ 5. 4 0 . 0 1 ‐‐ <1 < 0 . 0 5 1 . 3 1 <2 25 8 ‐‐ <2 0 . 0 0 6 ‐‐ <2 < 0 . 0 5 6 . 0 6 <1 20 8 ‐‐ 1. 7 2 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 5 . 6 5 <1 21 8 ‐‐ 1. 7 0 . 0 0 7 ‐‐ <1 < 0 . 0 5 5 . 5 3 <1 22 5 ‐‐ 1. 8 0 . 0 0 6 ‐‐ <1 < 0 . 0 5 2 . 5 6 <2 4 2 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 3 4 . 5 <1 2 7 ‐‐ 1. 0 1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 4 . 2 <1 2 7 ‐‐ <1 0 . 0 0 9 ‐‐ <1 < 0 . 0 5 1 6 . 9 <1 1 5 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 . 2 4 <2 99 1 ‐‐ 2. 1 5 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 2 9 . 7 <1 17 5 0 ‐‐ 2. 8 6 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 3 . 2 <1 17 5 0 ‐‐ 2 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 5 6 . 8 <1 18 9 0 ‐‐ 2. 4 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 1 . 3 <2 < 5 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 . 5 2 <1 < 5 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 0 . 2 2 <1 < 5 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 2 . 6 6 <1 < 5 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 5 . 1 5 <2 22 9 ‐‐ <2 0 . 0 1 8 ‐‐ <2 < 0 . 0 5 1 3 5 <1 18 7 ‐‐ 1. 9 1 0 . 0 3 ‐‐ <1 < 0 . 0 5 4 1 . 5 1. 2 18 7 ‐‐ 1. 8 0 . 0 5 9 ‐‐ <1 < 0 . 0 5 1 1 9 <1 19 9 ‐‐ 1. 3 0 . 0 1 2 ‐‐ <1 < 0 . 0 5 2 2 31 . 3 1 7 5 0 <1 1 6 0 . 2 8 1 < 5 5 . 6 2 < 0 . 5 0 <1 18 9 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 8 <1 21 2 <0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 5 . 0 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 11.3 <1 51 7 <0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 9 9 . 4 <1 55 5 <0 . 2 < 5 0 . 0 1 1 < 1 < 1 < 0 . 0 5 9 7 . 1 <1 35 4 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 0 . 0 7 3 . 0 6 22 . 2 4 9 5 <2 1 2 0 . 1 1 9 < 1 0 < 1 0 0 . 0 7 0 10 . 8 75 8 <0 . 2 1 3 0 . 0 9 6 < 1 < 1 < 0 . 0 5 0 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 684 <2 74 ‐‐ <2 0 . 0 0 9 ‐‐ <2 0 . 0 7 4 1 3 7 <1 60 ‐‐ 2. 0 4 0 . 0 0 9 ‐‐ <1 0 . 0 5 2 6 0 <1 59 . 7 ‐‐ 1. 8 0 . 0 0 8 ‐‐ <1 0 . 0 7 4 8 9 . 5 <1 64 . 9 ‐‐ 2. 8 0 . 0 1 2 ‐‐ <1 < 0 . 0 5 8 6 . 1 <1 4 8 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 4 3 . 6 <1 3 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 2 . 9 <1 3 6 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 0 . 0 6 1 9 . 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 47 <1 3 8 < 0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 3 1 . 5 <1 3 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 . 2 <1 3 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 1 1 7 . 6 <1 2 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 3 <1 2 6 < 0 . 2 < 5 < 0 . 0 0 5 1. 9 8 <1 < 0 . 0 5 1 5 . 2 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 33.3 <2 4 4 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 0 . 0 5 8 1 7 . 3 <1 3 6 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 0 . 0 6 1 3 . 4 <1 54 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 0 . 1 6 1 8 . 3 1 <1 4 6 . 6 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 0 . 0 6 1 7 . 1 2 Pa g e  13  of  18 Riverbend  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 ‐5S 1 2 / 6 / 2 0 1 0 MW ‐5S 2 / 1 / 2 0 1 1 MW ‐5S 6 / 7 / 2 0 1 1 MW ‐5S 1 0 / 4 / 2 0 1 1 MW ‐5S 2 / 4 / 2 0 1 3 MW ‐5S 1 0 / 1 5 / 2 0 1 3 MW ‐5S 2 / 4 / 2 0 1 4 MW ‐5S 6 / 3 / 2 0 1 4 MW ‐5S 1 0 / 7 / 2 0 1 4 MW ‐5S 2 / 3 / 2 0 1 5 MW ‐5S 6 / 2 / 2 0 1 5 MW ‐5S 1 0 / 8 / 2 0 1 5 MW ‐5S 2 / 2 / 2 0 1 6 MW ‐5S 6 / 6 / 2 0 1 6 MW ‐5D 1 2 / 1 6 / 2 0 0 8 MW ‐5D 6 / 2 2 / 2 0 0 9 MW ‐5D 1 2 / 1 4 / 2 0 0 9 MW ‐5D 6 / 2 8 / 2 0 1 0 MW ‐5D 2 / 4 / 2 0 1 3 MW ‐5D 1 0 / 1 5 / 2 0 1 3 MW ‐5D 2 / 4 / 2 0 1 4 MW ‐5D 6 / 3 / 2 0 1 4 MW ‐5D 1 0 / 7 / 2 0 1 4 MW ‐5D 2 / 3 / 2 0 1 5 MW ‐5D 6 / 2 / 2 0 1 5 MW ‐5D 1 0 / 8 / 2 0 1 5 MW ‐5D 2 / 2 / 2 0 1 6 MW ‐5D 6 / 6 / 2 0 1 6 MW ‐6S 1 2 / 1 6 / 2 0 0 8 MW ‐6S 6 / 2 2 / 2 0 0 9 MW ‐6S 1 2 / 1 4 / 2 0 0 9 MW ‐6S 6 / 2 8 / 2 0 1 0 MW ‐6S 1 2 / 6 / 2 0 1 0 MW ‐6S 2 / 1 / 2 0 1 1 MW ‐6S 6 / 7 / 2 0 1 1 MW ‐6S 1 0 / 4 / 2 0 1 1 MW ‐6D 1 2 / 1 6 / 2 0 0 8 MW ‐6D 6 / 2 2 / 2 0 0 9 MW ‐6D 1 2 / 1 4 / 2 0 0 9 MW ‐6D 6 / 2 8 / 2 0 1 0 MW ‐7S R 1 2 / 6 / 2 0 1 0 MW ‐7S R 2 / 2 / 2 0 1 1 MW ‐7S R 6 / 6 / 2 0 1 1 MW ‐7S R 1 0 / 4 / 2 0 1 1 MW ‐7S R 2 / 2 2 / 2 0 1 2 MW ‐7S R 6 / 5 / 2 0 1 2 MW ‐7S R 1 0 / 3 / 2 0 1 2 MW ‐7S R 2 / 4 / 2 0 1 3 MW ‐7S R 6 / 3 / 2 0 1 3 MW ‐7S R 1 0 / 1 4 / 2 0 1 3 MW ‐7S R 2 / 5 / 2 0 1 4 MW ‐7S R 6 / 2 / 2 0 1 4 MW ‐7S R 1 0 / 6 / 2 0 1 4 MW ‐7S R 2 / 2 / 2 0 1 5 MW ‐7S R 6 / 1 / 2 0 1 5 MW ‐7S R 1 0 / 7 / 2 0 1 5 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ <1 12 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 1 4 8 . 9 4 <1 50 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 5 8 8 . 2 1 <1 54 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 1 8 9 . 6 5 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 6.61 <1 93 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 9 <1 11 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 2 2 4 . 7 4 <1 3 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 1 1 . 4 9 <1 1 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 0 9 1 . 9 3 <1 31 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 0 . 0 7 2 . 0 5 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 1.97 <2 4 9 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 0 . 7 4 <1 3 0 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 0 . 3 1 <1 2 6 . 9 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 5 7 <1 1 7 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 6 . 3 8 <1 2 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 <1 2 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 8 5 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 7. 9 <1 < 0 . 0 5 2 . 6 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 8.92 <1 1 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 4 3 <1 6 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 4 2 <1 2 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 1 6 <1 1 1 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 4 7 <1 6 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 1 . 7 8 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 1.95 <2 93 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 1 6 8 <1 53 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 8 . 8 8 <1 66 . 3 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 9 . 8 <1 57 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 6 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ <2 8 ‐‐ <2 < 0 . 0 0 5 ‐‐ <2 < 0 . 0 5 2 . 6 7 <1 6 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 1 . 2 1 <1 7 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 2 3 <1 6 . 4 2 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 4 . 9 1 <1 25 6 <0 . 2 7 0 . 0 0 6 < 1 < 1 < 0 . 0 5 2 . 7 6 <1 41 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 8 4 <1 30 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 2 5 <1 16 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 3 9 <1 11 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 8 <1 12 2 <0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 8 <1 67 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 2 8 <1 4 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 4 <1 3 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 8 1 <1 68 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 1 7 <1 4 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 0 2 <1 3 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 6 6 <1 3 1 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 1 9 <1 4 0 < 0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 4 . 6 5 <1 54 <0 . 2 1 4 0 . 0 1 8 < 1 < 1 < 0 . 0 5 8 . 8 <1 2 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 5 1 Pa g e  14  of  18 Riverbend  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 ‐7S R 2 / 1 / 2 0 1 6 MW ‐7S R 6 / 6 / 2 0 1 6 MW ‐7D 1 2 / 1 6 / 2 0 0 8 MW ‐7D 6 / 2 2 / 2 0 0 9 MW ‐7D 1 2 / 1 4 / 2 0 0 9 MW ‐7D 6 / 2 8 / 2 0 1 0 MW ‐7D 1 2 / 6 / 2 0 1 0 MW ‐7D 2 / 2 / 2 0 1 1 MW ‐7D 6 / 6 / 2 0 1 1 MW ‐7D 1 0 / 4 / 2 0 1 1 MW ‐7D 2 / 2 2 / 2 0 1 2 MW ‐7D 6 / 5 / 2 0 1 2 MW ‐7D 1 0 / 3 / 2 0 1 2 MW ‐7D 2 / 4 / 2 0 1 3 MW ‐7D 6 / 3 / 2 0 1 3 MW ‐7D 1 0 / 1 4 / 2 0 1 3 MW ‐7D 2 / 5 / 2 0 1 4 MW ‐7D 6 / 2 / 2 0 1 4 MW ‐7D 1 0 / 6 / 2 0 1 4 MW ‐7D 2 / 2 / 2 0 1 5 MW ‐7D 6 / 1 / 2 0 1 5 MW ‐7D 1 0 / 7 / 2 0 1 5 MW ‐7D 2 / 1 / 2 0 1 6 MW ‐7D 6 / 6 / 2 0 1 6 MW ‐8S 1 2 / 6 / 2 0 1 0 MW ‐8S 2 / 1 / 2 0 1 1 MW ‐8S 6 / 7 / 2 0 1 1 MW ‐8S 1 0 / 3 / 2 0 1 1 MW ‐8S 2 / 6 / 2 0 1 2 MW ‐8S 6 / 4 / 2 0 1 2 MW ‐8S 1 0 / 3 / 2 0 1 2 MW ‐8S 2 / 4 / 2 0 1 3 MW ‐8S 6 / 3 / 2 0 1 3 MW ‐8S 1 0 / 1 4 / 2 0 1 3 MW ‐8S 2 / 4 / 2 0 1 4 MW ‐8S 6 / 2 / 2 0 1 4 MW ‐8S 1 0 / 6 / 2 0 1 4 MW ‐8S 2 / 2 / 2 0 1 5 MW ‐8S 6 / 1 / 2 0 1 5 MW ‐8S 1 0 / 7 / 2 0 1 5 MW ‐8S 2 / 1 / 2 0 1 6 MW ‐8S 6 / 6 / 2 0 1 6 MW ‐8I 1 2 / 6 / 2 0 1 0 MW ‐8I 2 / 1 / 2 0 1 1 MW ‐8I 6 / 7 / 2 0 1 1 MW ‐8I 1 0 / 3 / 2 0 1 1 MW ‐8I 2 / 6 / 2 0 1 2 MW ‐8I 6 / 4 / 2 0 1 2 MW ‐8I 1 0 / 3 / 2 0 1 2 MW ‐8I 2 / 4 / 2 0 1 3 MW ‐8I 6 / 3 / 2 0 1 3 MW ‐8I 1 0 / 1 4 / 2 0 1 3 MW ‐8I 2 / 4 / 2 0 1 4 MW ‐8I 6 / 2 / 2 0 1 4 MW ‐8I 1 0 / 6 / 2 0 1 4 MW ‐8I 2 / 2 / 2 0 1 5 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) <1 3 2 < 0 . 2 < 5 < 0 . 0 0 5 2. 1 9 <1 < 0 . 0 5 3 . 9 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0.99 <2 7 ‐‐ <2 0 . 0 0 6 ‐‐ <2 < 0 . 0 5 1 . 2 2 <1 < 5 ‐‐ <1 < 0 . 0 0 5 ‐‐ <1 < 0 . 0 5 3 . 0 7 <1 < 5 ‐‐ <1 0 . 0 0 6 ‐‐ <1 < 0 . 0 5 1 . 1 3 <1 < 5 ‐‐ <1 0 . 0 0 6 ‐‐ <1 < 0 . 0 5 1 . 1 4 <1 < 5 < 0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 7 4 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 8 2 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 5 9 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 4 4 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 4 8 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 2 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 2 9 <1 < 5 < 0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 8 9 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 4 2 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 1. 0 4 <1 < 0 . 0 5 3 <1 < 5 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 2 . 0 5 <1 < 5 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 4 . 7 3 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 2 5 <1 < 5 < 0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 6 . 5 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 0 4 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 5 7 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 1. 8 2 <1 < 0 . 0 5 1 . 9 4 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 0.53 <1 12 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 3 . 2 <1 13 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 <1 14 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 9 8 <1 13 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 8 9 <1 13 3 <0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 6 <1 12 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 7 6 <1 10 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 6 5 <1 90 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 7 7 <1 87 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 1 8 <1 78 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 1 2 <1 68 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 0 7 <1 77 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 9 . 4 6 <1 64 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 7 2 <1 55 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 4 2 <1 69 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 7 <1 57 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 6 <1 67 <0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 7 . 4 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 9.77 <1 53 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 2 . 2 <1 29 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 0 . 4 <1 4 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 7 . 7 <1 52 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 7 . 2 <1 3 2 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 3 2 . 2 <1 3 9 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 8 . 7 <1 2 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 3 <1 16 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 9 . 8 <1 93 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 4 . 1 <1 2 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 8 7 <1 1 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 8 <1 4 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 . 2 <1 4 4 < 0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 4 3 . 2 <1 3 8 < 0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 5 1 . 6 Pa g e  15  of  18 Riverbend  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 ‐8I 6 / 1 / 2 0 1 5 MW ‐8I 1 0 / 7 / 2 0 1 5 MW ‐8I 2 / 1 / 2 0 1 6 MW ‐8I 6 / 6 / 2 0 1 6 MW ‐8D 1 2 / 6 / 2 0 1 0 MW ‐8D 2 / 1 / 2 0 1 1 MW ‐8D 6 / 7 / 2 0 1 1 MW ‐8D 1 0 / 3 / 2 0 1 1 MW ‐8D 2 / 6 / 2 0 1 2 MW ‐8D 6 / 4 / 2 0 1 2 MW ‐8D 1 0 / 3 / 2 0 1 2 MW ‐8D 2 / 4 / 2 0 1 3 MW ‐8D 6 / 3 / 2 0 1 3 MW ‐8D 1 0 / 1 4 / 2 0 1 3 MW ‐8D 2 / 4 / 2 0 1 4 MW ‐8D 6 / 2 / 2 0 1 4 MW ‐8D 1 0 / 6 / 2 0 1 4 MW ‐8D 2 / 2 / 2 0 1 5 MW ‐8D 6 / 1 / 2 0 1 5 MW ‐8D 1 0 / 7 / 2 0 1 5 MW ‐8D 2 / 1 / 2 0 1 6 MW ‐8D 6 / 6 / 2 0 1 6 MW ‐9 1 2 / 6 / 2 0 1 0 MW ‐9 2 / 1 / 2 0 1 1 MW ‐9 6 / 6 / 2 0 1 1 MW ‐9 1 0 / 4 / 2 0 1 1 MW ‐9 2 / 6 / 2 0 1 2 MW ‐9 6 / 5 / 2 0 1 2 MW ‐9 1 0 / 3 / 2 0 1 2 MW ‐9 2 / 4 / 2 0 1 3 MW ‐9 6 / 4 / 2 0 1 3 MW ‐9 1 0 / 1 5 / 2 0 1 3 MW ‐9 2 / 5 / 2 0 1 4 MW ‐9 6 / 2 / 2 0 1 4 MW ‐9 1 0 / 6 / 2 0 1 4 MW ‐9 2 / 3 / 2 0 1 5 MW ‐9 6 / 2 / 2 0 1 5 MW ‐9 1 0 / 6 / 2 0 1 5 MW ‐9 2 / 1 / 2 0 1 6 MW ‐9 6 / 6 / 2 0 1 6 MW ‐10 1 2 / 6 / 2 0 1 0 MW ‐10 2 / 1 / 2 0 1 1 MW ‐10 6 / 7 / 2 0 1 1 MW ‐10 1 0 / 3 / 2 0 1 1 MW ‐10 2 / 6 / 2 0 1 2 MW ‐10 6 / 4 / 2 0 1 2 MW ‐10 1 0 / 3 / 2 0 1 2 MW ‐10 2 / 4 / 2 0 1 3 MW ‐10 6 / 4 / 2 0 1 3 MW ‐10 1 0 / 1 5 / 2 0 1 3 MW ‐10 2 / 3 / 2 0 1 4 MW ‐10 6 / 2 / 2 0 1 4 MW ‐10 1 0 / 6 / 2 0 1 4 MW ‐10 2 / 2 / 2 0 1 5 MW ‐10 6 / 1 / 2 0 1 5 MW ‐10 1 0 / 6 / 2 0 1 5 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) <1 3 0 < 0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 2 0 . 8 <1 1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 6 . 2 <1 1 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 4 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 13.5 <1 74 3 <0 . 2 < 5 0 . 0 1 2 < 1 < 1 < 0 . 0 5 2 1 7 <1 67 1 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 0 <1 62 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 5 <1 53 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 7 . 4 <1 45 2 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 4 1 . 4 <1 17 4 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 7 6 <1 82 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 1 0 0 <1 14 3 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 4 4 <1 86 <0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 3 6 <1 3 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 4 . 7 <1 11 8 <0 . 2 < 5 0 . 0 1 4 < 1 < 1 < 0 . 0 5 1 1 0 <1 3 5 < 0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 9 3 . 7 <1 74 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 7 2 . 4 <1 3 1 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 2 . 6 <1 1 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 6 <1 2 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 1 . 9 <1 < 5 < 0 . 2 < 5 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 7 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 38.8 1. 8 7 28 2 <0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 1 3 9 <1 14 7 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 9 . 5 <1 87 <0 . 2 < 5 0 . 0 0 6 < 1 < 1 < 0 . 0 5 2 1 . 2 <1 62 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 2 . 6 1. 2 3 68 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 4 9 . 7 <1 2 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 4 . 3 <1 2 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 4 . 4 1. 1 2 4 9 < 0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 3 7 <1 2 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 3 <1 1 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 8 2 <1 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 7 9 <1 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 2 8 <1 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 5 6 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 0 7 <1 1 9 < 0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 1 8 . 6 <1 9 0. 2 0 4 <5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 9 5 <1 5 < 0 . 2 < 5 < 0 . 0 0 5 1. 9 1 <1 < 0 . 0 5 3 . 6 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 8.05 2. 5 9 19 8 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 1 8 2 1. 1 5 24 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 4 . 1 <1 72 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 9 2 <1 35 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 9 . 7 <1 67 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 0 . 7 <1 4 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 1 9 <1 23 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 1 9 <1 3 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 2 3 <1 2 1 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 7 3 <1 13 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 9 5 <1 1 9 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 8 1 <1 3 7 < 0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 2 1 . 7 <1 13 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 3 2 <1 12 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 2 8 <1 68 <0 . 2 6 0 . 0 0 9 < 1 < 1 < 0 . 0 5 5 . 0 8 <1 59 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 9 7 Pa g e  16  of  18 Riverbend  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 2 / 1 / 2 0 1 6 MW ‐10 6 / 6 / 2 0 1 6 MW ‐11 S R 2 / 1 / 2 0 1 1 MW ‐11 S R 6 / 6 / 2 0 1 1 MW ‐11 S R 1 0 / 3 / 2 0 1 1 MW ‐11 S R 2 / 6 / 2 0 1 2 MW ‐11 S R 6 / 4 / 2 0 1 2 MW ‐11 S R 1 0 / 3 / 2 0 1 2 MW ‐11 S R 2 / 4 / 2 0 1 3 MW ‐11 S R 6 / 3 / 2 0 1 3 MW ‐11 S R 1 0 / 1 4 / 2 0 1 3 MW ‐11 S R 2 / 3 / 2 0 1 4 MW ‐11 S R 6 / 2 / 2 0 1 4 MW ‐11 S R 1 0 / 6 / 2 0 1 4 MW ‐11 S R 2 / 2 / 2 0 1 5 MW ‐11 S R 6 / 1 / 2 0 1 5 MW ‐11 S R 1 0 / 6 / 2 0 1 5 MW ‐11 S R 2 / 1 / 2 0 1 6 MW ‐11 S R 6 / 6 / 2 0 1 6 MW ‐11 D R 2 / 1 / 2 0 1 1 MW ‐11 D R 6 / 6 / 2 0 1 1 MW ‐11 D R 1 0 / 3 / 2 0 1 1 MW ‐11 D R 2 / 6 / 2 0 1 2 MW ‐11 D R 6 / 4 / 2 0 1 2 MW ‐11 D R 1 0 / 3 / 2 0 1 2 MW ‐11 D R 2 / 4 / 2 0 1 3 MW ‐11 D R 6 / 3 / 2 0 1 3 MW ‐11 D R 1 0 / 1 4 / 2 0 1 3 MW ‐11 D R 2 / 3 / 2 0 1 4 MW ‐11 D R 6 / 2 / 2 0 1 4 MW ‐11 D R 1 0 / 6 / 2 0 1 4 MW ‐11 D R 2 / 2 / 2 0 1 5 MW ‐11 D R 6 / 1 / 2 0 1 5 MW ‐11 D R 1 0 / 6 / 2 0 1 5 MW ‐11 D R 2 / 1 / 2 0 1 6 MW ‐11 D R 6 / 6 / 2 0 1 6 MW ‐13 1 2 / 6 / 2 0 1 0 MW ‐13 2 / 1 / 2 0 1 1 MW ‐13 6 / 7 / 2 0 1 1 MW ‐13 1 0 / 4 / 2 0 1 1 MW ‐13 2 / 6 / 2 0 1 2 MW ‐13 6 / 5 / 2 0 1 2 MW ‐13 1 0 / 3 / 2 0 1 2 MW ‐13 2 / 5 / 2 0 1 3 MW ‐13 6 / 3 / 2 0 1 3 MW ‐13 1 0 / 1 5 / 2 0 1 3 MW ‐13 2 / 3 / 2 0 1 4 MW ‐13 6 / 2 / 2 0 1 4 MW ‐13 1 0 / 6 / 2 0 1 4 MW ‐13 2 / 2 / 2 0 1 5 MW ‐13 6 / 1 / 2 0 1 5 MW ‐13 1 0 / 6 / 2 0 1 5 MW ‐13 2 / 1 / 2 0 1 6 MW ‐13 6 / 6 / 2 0 1 6 MW ‐14 1 2 / 6 / 2 0 1 0 MW ‐14 2 / 1 / 2 0 1 1 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) <1 21 8 <0 . 2 < 5 < 0 . 0 0 5 1. 8 4 <1 < 0 . 0 5 6 . 4 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 3.32 <1 38 4 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 1 <1 59 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 4 4 <1 3 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 1 3 <1 2 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 7 2 <1 1 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 3 5 <1 1 6 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 3 7 <1 1 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 0 5 <1 1 2 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 5 3 <1 1 4 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 0 7 <1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 5 5 <1 9 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 3 4 <1 1 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 4 4 <1 7 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 1 <1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 8 <1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 7 5 <1 8 < 0 . 2 < 5 < 0 . 0 0 5 1. 9 8 <1 < 0 . 0 5 6 . 2 3 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 4.45 <1 16 8 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 6 <1 10 3 <0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 0 . 6 8 <1 87 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 3 . 4 <1 10 1 <0 . 2 < 5 0 . 0 1 1 < 1 < 1 < 0 . 0 5 0 . 6 4 <1 92 <0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 0 . 1 8 <1 87 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 0 . 9 4 <1 88 <0 . 2 < 5 0 . 0 0 9 < 1 < 1 < 0 . 0 5 1 . 2 4 <1 93 <0 . 2 < 5 0 . 0 1 < 1 < 1 < 0 . 0 5 2 . 2 4 <1 60 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 2 4 <1 51 <0 . 2 < 5 0 . 0 0 7 < 1 < 1 < 0 . 0 5 1 . 9 4 <1 51 <0 . 2 < 5 0 . 0 0 8 < 1 < 1 < 0 . 0 5 1 . 5 5 <1 1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 6 6 <1 8 < 0 . 2 < 5 0 . 1 3 2 < 1 < 1 < 0 . 0 5 1 . 7 7 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 0 . 9 4 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 2 <1 < 5 < 0 . 2 < 5 < 0 . 0 0 5 1. 9 6 <1 < 0 . 0 5 2 . 1 6 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 2.58 <1 10 9 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 2 6 <1 11 2 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 2 6 <1 10 4 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 4 <1 10 0 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 6 7 <1 10 3 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 1 4 <1 10 3 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 1 5 <1 10 3 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 <1 10 5 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 7 5 <1 10 1 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 9 . 3 2 <1 80 7 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 . 8 <1 10 3 0 0 <0 . 2 1 1 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 8 . 3 <1 10 0 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 6 7 <1 10 1 0 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 4 4 <1 93 3 0 <0 . 2 6 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 3 . 7 <1 87 6 0 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 7 . 7 8 <1 86 5 0 <0 . 2 < 5 < 0 . 0 0 5 1. 0 5 <1 < 0 . 0 5 4 . 3 8 <1 73 9 0 <0 . 2 1 0 < 0 . 0 0 5 2. 1 <1 < 0 . 0 5 8 . 6 1 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 3.98 <1 27 0 <0 . 2 6 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 5 . 6 <1 55 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 4 . 4 Pa g e  17  of  18 Riverbend  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 ‐14 6 / 7 / 2 0 1 1 MW ‐14 1 0 / 4 / 2 0 1 1 MW ‐14 2 / 6 / 2 0 1 2 MW ‐14 6 / 5 / 2 0 1 2 MW ‐14 1 0 / 3 / 2 0 1 2 MW ‐14 2 / 4 / 2 0 1 3 MW ‐14 6 / 3 / 2 0 1 3 MW ‐14 1 0 / 1 5 / 2 0 1 3 MW ‐14 2 / 3 / 2 0 1 4 MW ‐14 6 / 2 / 2 0 1 4 MW ‐14 1 0 / 6 / 2 0 1 4 MW ‐14 2 / 2 / 2 0 1 5 MW ‐14 6 / 1 / 2 0 1 5 MW ‐14 1 0 / 6 / 2 0 1 5 MW ‐14 2 / 1 / 2 0 1 6 MW ‐14 6 / 6 / 2 0 1 6 MW ‐15 2 / 2 3 / 2 0 1 1 MW ‐15 6 / 6 / 2 0 1 1 MW ‐15 1 0 / 3 / 2 0 1 1 MW ‐15 2 / 6 / 2 0 1 2 MW ‐15 6 / 5 / 2 0 1 2 MW ‐15 1 0 / 3 / 2 0 1 2 MW ‐15 2 / 4 / 2 0 1 3 MW ‐15 6 / 3 / 2 0 1 3 MW ‐15 1 0 / 1 4 / 2 0 1 3 MW ‐15 2 / 3 / 2 0 1 4 MW ‐15 6 / 2 / 2 0 1 4 MW ‐15 1 0 / 6 / 2 0 1 4 MW ‐15 2 / 2 / 2 0 1 5 MW ‐15 6 / 1 / 2 0 1 5 MW ‐15 1 0 / 6 / 2 0 1 5 MW ‐15 2 / 1 / 2 0 1 6 MW ‐15 6 / 6 / 2 0 1 6 15 5 0 0 . 2 1 0 0 1 1 2 0 1 N S µg / L µ g / L µ g / L µ g / L m g / L µ g / L µ g / L µ g / L N T U Le a d M a 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) <1 4 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 0 9 <1 19 3 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 2 . 9 <1 35 3 <0 . 2 9 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 3 1 <1 56 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 1 . 8 5 <1 2 0 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 2 . 0 4 <1 1 8 < 0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 9 2 <1 63 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 2 4 <1 81 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 4 8 <1 20 5 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 6 4 <1 18 5 <0 . 2 6 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 8 . 2 1 <1 90 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 6 . 5 2 <1 12 6 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 4 . 8 9 <1 13 2 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 5 . 0 8 <1 99 <0 . 2 < 5 < 0 . 0 0 5 < 1 < 1 < 0 . 0 5 3 . 9 6 <1 62 <0 . 2 < 5 < 0 . 0 0 5 2. 2 3 <1 < 0 . 0 5 1 1 . 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 5.65 <1 55 <0 . 2 < 5 0 . 0 0 6 < 1 1 . 9 8 < 0 . 0 5 1 3 . 2 <1 64 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 7 9 < 0 . 0 5 1 0 . 8 <1 81 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 9 7 < 0 . 0 5 1 0 . 9 <1 86 <0 . 2 < 5 0 . 0 0 7 < 1 1 . 9 1 < 0 . 0 5 7 . 9 9 <1 52 <0 . 2 < 5 < 0 . 0 0 5 < 1 2 . 0 3 < 0 . 0 5 2 . 7 3 <1 4 6 < 0 . 2 < 5 0 . 0 0 5 < 1 2 . 0 8 < 0 . 0 5 4 . 1 6 <1 4 9 < 0 . 2 < 5 0 . 0 0 6 < 1 1 . 9 3 < 0 . 0 5 3 . 3 5 <1 4 5 < 0 . 2 < 5 0 . 0 0 5 < 1 1 . 5 8 < 0 . 0 5 1 . 5 <1 58 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 8 3 < 0 . 0 5 3 . 8 3 <1 50 <0 . 2 < 5 0 . 0 0 6 < 1 1 . 5 8 < 0 . 0 5 2 . 1 5 <1 4 1 < 0 . 2 < 5 0 . 0 0 6 < 1 1 . 7 < 0 . 0 5 6 . 0 2 <1 53 <0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 7 8 < 0 . 0 5 2 . 4 8 <1 4 5 < 0 . 2 < 5 0 . 0 0 7 < 1 1 . 3 9 < 0 . 0 5 2 . 5 9 <1 3 7 < 0 . 2 6 0 . 0 1 1 < 1 1 . 7 6 < 0 . 0 5 1 . 7 7 <1 2 3 < 0 . 2 < 5 < 0 . 0 0 5 < 1 1 . 5 2 < 0 . 0 5 4 . 6 7 <1 71 <0 . 2 < 5 < 0 . 0 0 5 1. 9 7 1.48 < 0 . 0 5 2 . 2 7 ‐‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ 2.5 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  an d  Wa t e r  Qu a l i t y  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  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   °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 Riverbend  Steam  Station CSA  Supplement  2 Ta b l e  1 ‐3:  Ra n g e  of  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 0 3 0 0 5 0 1 6 . 5  – 8. 5 Un i t s : 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 C h r o m i u m I r o n M a n g a n e s e A n t i m o n y p H MW ‐7S R 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 1 4 4 4 5  – 79 0 5 4  – 41 3 2 . 1 9 4 . 9 6  – 5. 4 8 MW ‐7D 1 2 / 1 6 / 2 0 0 8  – 6/ 6 / 2 0 1 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  Ex c e e d a n c e s 1 . 0 4  – 1. 8 2 5 . 4 7  – 5. 9 2 MW ‐8S 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 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 5 5  – 14 4 N o  Ex c e e d a n c e s 4 . 3 4  – 5. 3 3 MW ‐8I 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 1 5  – 2, 5 1 0 5 2  – 53 8 N o  Ex c e e d a n c e s 5 . 6 5  – 6. 4 MW ‐8D 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 6 3  – 4, 1 6 0 7 4  – 74 3 N o  Ex c e e d a n c e s 6 . 2 7  – 6. 4 9 *M W ‐9 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 4 1  – 2, 4 4 0 6 2  – 28 2 1 . 9 1 5 . 8 2  – 6. 4 *M W ‐10 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 0 1  – 1, 7 1 0 5 9  – 35 5 1 . 8 4 4 . 8  – 5. 5 7 MW ‐11 S R 2 / 1 / 2 0 1 1  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 4 8 6 5 9  – 38 4 1 . 9 8 5 . 5 9  – 6. 0 7 MW ‐11 D R 2 / 1 / 2 0 1 1  – 6/ 6 / 2 0 1 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 5 1  – 16 8 1 . 9 6 5 . 5 5  – 6. 0 *M W ‐13 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 7 , 6 9 0 –  37 , 7 0 0 7 , 3 9 0  – 11 , 2 0 0 1 . 0 5  – 2. 1 5 . 7 6  – 6. 3 5 MW ‐14 1 2 / 6 / 2 0 1 0  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 6 9  – 94 9 5 5  – 35 3 2 . 2 3 N o  Ex c e e d a n c e s MW ‐15 2 / 2 3 / 2 0 1 1  – 6/ 6 / 2 0 1 6 N o  Ex c e e d a n c e s 3 9 9  – 46 5 5 2  – 86 1 . 9 7 5 . 0 5  – 5. 2 9 No t e s : 1.2.3.4.5. 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  Water   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 No t e :  Mo n i t o r i n g  we l l s  ma r k e d  wi t h  * ar e  lo c a t e d  in s i d e  of  th e  co m p l i a n c e  bo u n d a r y . 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 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   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   1  of  1 Riverbend  Steam  Station CSA  Supplement  2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e s o l u t i o n Ge n e r a l 1 Ch e c k l a t i t u d e a n d l o n g i t u d e s h o w n o n r e p o r t c o v e r p a g e s ( t h e co n v e r s i o n a p p e a r s t o b e i n c o r r e c t o n t h e M o o r e s v i l l e r e g i o n re p o r t s a n d n e e d s t o b e r e c o n c i l e d ) . HD R w i l l r e v i e w a n d p r o v i d e c o r r e c t e d l a t i t u d e a n d l o n g i t u d e c o o r d i n a t e s f o r t h e s i t e s i n f o r t h c o m i n g re p o r t s , i f n e e d e d . Ba c k g r o u n d 2 Us e t e r m i n o l o g y P E P A “ p r o v i s i o n a l e s t i m a t e s f o r p u r p o s e s o f as s e s s m e n t ” p r o v i d e f o r b a c k g r o u n d c o n c e n t r a t i o n s o f C O I s . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s i s t h e t e r m i n o l o g y u s e d f o r s t a t i s t i c a l l y de t e r m i n e d b a c k g r o u n d c o n c e n t r a t i o n s i n t h e C A P r e p o r t i n g . P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . Th e a p p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4. CO I 3 Us e r e s u l t s f r o m p o r e w a t e r , g r o u n d w a t e r a n d o t h e r m e d i a t o de v e l o p C O I l i s t . CO I s w e r e s e l e c t e d b a s e d o n e x c e e d a n c e s f o u n d i n p o r e w a t e r , g r o u n d w a t e r , s o i l , a n d s u r f a c e w a t e r sa m p l e r e s u l t s . CO I 4 Cr ( V I ) – i n c l u d e a s C O I a t e a c h s i t e d u e t o i n t e r e s t a n d d u e t o re c e p t o r w e l l r e s u l t s . U s e N C D H H S s c r e e n i n g v a l u e . He x a v a l e n t C h r o m i u m i s i n c l u d e d a s a C O I i n C A P P a r t 1 d a t a t a b l e s a n d i s c o n s i d e r e d w i t h r e s p e c t t o t h e NC D H H S s c r e e n i n g l e v e l a n d h a s b e e n c a r r i e d f o r w a r d w i t h s u b s e q u e n t e v a l u a t i o n s . S a m p l e s w e r e an a l y z e d f o r H e x a v a l e n t C h r o m i u m i n s e l e c t g r o u n d w a t e r m o n i t o r i n g w e l l s , a n d f u r t h e r C r ( V I ) e v a l u a t i o n ma y t a k e p l a c e b a s e d o n t h e r e s u l t s o f e a c h s i t e r e s p e c t i v e l y . C A P P a r t 1 , S e c t i o n 1 . 9 . 2 s t a t e s t h a t C r ( V I ) i s in c l u d e d i n t h e C O I l i s t . CO I 5 Ne e d t o e v a l u a t e v a n a d i u m a n d s t r o n t i u m a t e v e r y s i t e t o s h o w di f f e r e n c e s b e t w e e n b a c k g r o u n d c o n c e n t r a t i o n s a n d p o t e n t i a l so u r c e - r e l a t e d c o n c e n t r a t i o n s . Va n a d i u m h a s b e e n c o n s i d e r e d a c r o s s t h e s i t e s i n C S A r e p o r t i n g . S t r o n t i u m w a s n o t i n c l u d e d i n t h e C S A ta b l e s , h o w e v e r s t r o n t i u m d a t a w a s c o l l e c t e d w i t h o t h e r c o n s t i t u e n t s , i n c l u d i n g v a n a d i u m , a n d i s pr e s e n t e d i n t h e C S A S u p p l e m e n t 2 . CO I - R e c e p t o r s 6 A d d e v a l u a t i o n o f r e c e p t o r w e l l s i n C A P . Wa t e r s u p p l y w e l l s a r e s h o w n o n F i g u r e 1 - 3 i n t h e C S A S u p p l e m e n t 2 a l o n g w i t h a n a l y t i c a l r e s u l t s fa c i l i t a t i n g t h e i n t e r p r e t a t i o n o f r e c e p t o r w a t e r q u a l i t y r e l a t i v e t o s i t e w a t e r q u a l i t y . CO I - R e c e p t o r s 7 Pr i v a t e a n d p u b l i c w a t e r s u p p l y w e l l s s a m p l e d s h o u l d b e s h o w n on a m a p w i t h z o o m i n b o x e s s h o w i n g c o n c e n t r a t i o n r e s u l t s e v e n if b e l o w 2 L . Wa t e r s u p p l y w e l l s a r e s h o w n o n F i g u r e 1 - 3 i n t h e C S A S u p p l e m e n t 2 a l o n g w i t h a n a l y t i c a l r e s u l t s fa c i l i t a t i n g t h e i n t e r p r e t a t i o n o f r e c e p t o r w a t e r q u a l i t y r e l a t i v e t o s i t e w a t e r q u a l i t y . CO I - R e c e p t o r s 8 A d d t a b l e w i t h a l l r e c e p t o r w e l l r e s u l t s . Wa t e r s u p p l y w e l l s a r e s h o w n o n F i g u r e 1 - 3 i n t h e C S A S u p p l e m e n t 2 a l o n g w i t h a n a l y t i c a l r e s u l t s fa c i l i t a t i n g t h e i n t e r p r e t a t i o n o f r e c e p t o r w a t e r q u a l i t y r e l a t i v e t o s i t e w a t e r q u a l i t y . CO I - R e c e p t o r s 9 Al l p r i v a t e r e c e p t o r w e l l s s h o w n o n f i g u r e s ( u s e o r a d d D E Q de s i g n a t i o n s ) . Sh o w r e s u l t s f o r d e t e c t i o n c o n s t i t u e n t s . Ad d s t r o n t i u m . Al l w a t e r s u p p l y w e l l s a r e s h o w n o n F i g u r e 1 - 3 . T h o s e w a t e r s u p p l y w e l l s t h a t c a n b e s h o w n i n t h e vi e w p o r t s o f t h e t h e p o t e n t i o m e t r i c s u r f a c e a n d i s o c o n c e n t r a t i o n f i g u r e s i n t h e C S A S u p p l e m e n t 2 a r e a l s o in c l u d e d . A t a b l e o f a n a l y t i c a l r e s u l t s , i n c l u d i n g s t r o n t i u m , i s i n c l u d e d o n F i g u r e 1 - 3 . CO I 10 Ad d t o t a l u r a n i u m a n d R a 2 2 6 + 2 2 8 . D E Q c o n s i d e r s r a d i o n u c l i d e s t o be a d r i v e r o f a l p h a a c t i v i t y i n t h e a s h b a s i n s . S a m p l e t h e f o l l o w i n g lo c a t i o n s b o t h b e l o w a s h p o n d s a n d o t h e r d o w n g r a d i e n t a r e a s wh e r e o t h e r c o n s t i t u e n t c o n c e n t r a t i o n s a r e h i g h : Do w n g r a d i e n t m o n i t o r i n g w e l l l o c a t i o n s , a t l o c a t i o n s w i t h ex c e e d a n c e s , a n d a t b a c k g r o u n d l o c a t i o n s . Ur a n i u m a n d R a 2 2 6 + 2 2 8 m a y b e i n c l u d e d i n N P D E S m o n i t o r i n g . Li s t F e d e r a l M C L a s s t a n d a r d f o r R a 2 2 6 - 2 2 8 a n d u r a n i u m . Se l e c t w e l l s l o c a t e d d o w n s t r e a m a n d a l o n g t r a n s e c t s w e r e s a m p l e d f o r t h e s e c o n s t i t u e n t s i n t h e C S A a n d Po s t - C S A s a m p l i n g p e r i o d s . A t t h e t i m e o f t h e C S A S u p p l e m e n t 2 , t h e a n a l y t i c a l r e s u l t s f r o m R o u n d 5 h a d be e n r e c e i v e d a n d u p o n r e v i e w , w e r e r e c o m m e n d e d f o r r e - i s s u e p r i o r t o c o m p l e t i n g r e v i e w a n d i n c l u s i o n in t h e C S A S u p p l e m e n t 2 . U p o n r e c e i p t , t h e s e d a t a w i l l b e p r o v i d e d i n a s u b s e q u e n t s u b m i t t a l . 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 s o i l s a s b e i n g p r i m a r y a n d s e c o n d a r y s o u r c e s – a d d r e s s i n CA P a n d C S A s u p p l e m e n t . A s e p a r a t e r i s k a s s e s s m e n t h a s b e e n p r o v i d e d s u b s e q u e n t t o t h e C S A r e p o r t b y D u k e E n e r g y v i a H a l e y & 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 h o w g e o c h e m i c a l c o n d i t i o n s m a y a f f e c t r e l e a s e o f na t u r a l l y o c c u r r i n g c o n s t i t u e n t s s u c h a s i r o n a n d m a n g a n e s e . Di s c u s s i o n o f g e o c h e m i c a l c o n d i t i o n s w e r e p r o v i d e d i n C A P P a r t 2 w i t h g e o c h e m i c a l m o d e l i n g r e s u l t s . CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e s o l u t i o n 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 t o b e i d e n t i f i e d a s s e c o n d a r y s o u r c e – d u e t o l e a c h i n g o f a s h on t o u n s a t u r a t e d s o i l . A s e p a r a t e r i s k a s s e s s m e n t h a s b e e n p r o v i d e d s u b s e q u e n t t o t h e C S A r e p o r t b y D u k e E n e r g y v i a H a l e y & Al d r i t c h . Ba c k g r o u n d 14 Ba c k g r o u n d s o i l c o n c e n t r a t i o n s n e e d t o b e e v a l u a t e d . N a t i v e s o i l s ma y b e a s o u r c e b a s e d o n g e o c h e m i c a l c o n d i t i o n s i n / b e n e a t h t h e as h p o n d s . N e e d t o a d d r e s s b a c k g r o u n d s o i l c o n d i t i o n s a n d re l a t i o n s h i p t o o b s e r v e d 2 L e x c e e d a n c e s . Pr o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s o r P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . T h e ap p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 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 e s t i m a t e s ” o f b a c k g r o u n d i f t h e r e a r e in s u f f i c i e n t n u m b e r s o f s a m p l e s f o r s t a t i s t i c s . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s i s t h e t e r m i n o l o g y u s e d f o r s t a t i s t i c a l l y de t e r m i n e d b a c k g r o u n d c o n c e n t r a t i o n s i n t h e C A P r e p o r t i n g . P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . Th e a p p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4. Ba c k g r o u n d 16 A s i m i l a r a n a l y s i s / e v a l u a t i o n o f d o w n g r a d i e n t s o i l s a n d t h e i r re l a t i o n s h i p t o 2 L e x c e e d a n c e s a l s o n e e d s t o b e i n c l u d e d i n t h e CA P . Pr o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s o r P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . T h e ap p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4 . Ba c k g r o u n d 17 Po t e n t i a l r e l e a s e m e c h a n i s m s n e e d t o b e c o n s i d e r e d i n t h e C A P (i . e . , m i g r a t i o n o f l e a c h a t e b e n e a t h t h e a s h b a s i n , e t c . ) . Di s c u s s i o n o f p o t e n t i a l m i g r a t i o n p a t h w a y s i s d i s c u s s e d i n C A P P a r t 2 , S e c t i o n 3 . 3 Ba c k g r o u n d 18 Ba c k g r o u n d d e t e r m i n a t i o n s . B a c k g r o u n d c o n c e n t r a t i o n s n e e d t o be e v a l u a t e d t o d e t e r m i n e s i t e - s p e c i f i c c o n s t i t u e n t c o n c e n t r a t i o n le v e l s a n d t h i s e v a l u a t i o n n e e d s t o b e i n c l u d e d i n C A P . U s e a l l av a i l a b l e h i s t o r i c d a t a f r o m c o m p l i a n c e w e l l s a n d n e w l y i n s t a l l e d we l l s . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s i s t h e t e r m i n o l o g y u s e d f o r s t a t i s t i c a l l y de t e r m i n e d b a c k g r o u n d c o n c e n t r a t i o n s i n t h e C A P r e p o r t i n g . P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . Th e a p p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4. Ba c k g r o u n d 19 Ba c k g r o u n d g r o u n d w a t e r m o n i t o r i n g w e l l s n e e d t o b e s a m p l e d 2 mo r e t i m e s b e f o r e t h e e n d o f 2 0 1 5 ( s a m p l e s n e e d t o b e sp e c i a t e d ) . Th e s e s a m p l e s h a v e b e e n c o l l e c t e d . D a t a f r o m R o u n d s 2 t h r o u g h 4 w a s i n c l u d e d i n t h e C A P P a r t 2 . Ba c k g r o u n d 20 Se p a r a t e b a c k g r o u n d c o n c e n t r a t i o n s n e e d t o b e d e t e r m i n e d f o r sh a l l o w , i n t e r m e d i a t e a n d d e e p f l o w l a y e r s ( a s w e l l a s a n y o t h e r si t e - s p e c i f i c c o n d i t i o n s l i k e w e t l a n d s ) . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . T h e ap p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4 . Th i s a p p r o a c h i n c l u d e s c o n s i d e r a t i o n t o t h e s e c a l c u a t i o n s b y f l o w l a y e r . Ba c k g r o u n d 21 Us e a l l a v a i l a b l e s i t e d a t a ( i n c l u d e e x a m p l e b a c k g r o u n d w e l l s P H R , FG D , C r a i g R d . ) . Ba c k g r o u n d d a t a f r o m h i s t o r i c a l s o u r c e s w a s u t i l i z e d w h e r e a p p l i c a b l e i n t h e C A P P a r t 2 . We l l a n d C o n s t i t u e n t s 22 We l l s m u s t m e e t 2 C r u l e r e q u i r e m e n t s ; t u r b i d i t y c a n n o t i m p a c t re s u l t s . Re s u l t s f r o m R o u n d 5 s a m p l i n g a r e p r e s e n t e d i n t h e C S A S u p p l e m e n t 2 a n d w e l l s w i t h t u r b i d i t y r e s u l t s ab o v e 1 0 N T U a r e i d e n t i f i e d s o t h a t r e s u l t s m a y b e q u a l i f i e d u p o n r e 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 p H a n d t u r b i d i t y m u s t b e a d d r e s s e d o r w e l l m u s t b e re d e v e l o p e d o r r e p l a c e d . Du k e E n e r g y h a s i n s t a l l e d a d d i t i o n a l m o n i t o r i n g w e l l s t o a d d r e s s c o n c e r n s w i t h e l e v a t e d p H a n d t u r b i d i t y se e n w h e n s a m p l i n g a s w e l l a s t o r e f i n e u n d e r s t a n d i n g o f e x c e e d a n c e s . R e s u l t s f r o m t h e R o u n d 5 , in c l u d i n g a d d i t i o n a l a s s e s s m e n t w e l l s , h a s b e e n i n c l u d e d i n C S A S u 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 d i s c u s s i o n o f p H a n d t u r b i d i t y i n b a c k g r o u n d w e l l di s c u s s i o n . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . T h e ap p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4 . Th i s a p p r o a c h i n c l u d e s c o n s i d e r a t i o n t o t h e s e c a l c u a t i o n s b y u t i l i z i n g v i a b l e s a m p l e s b e l o w 1 0 N T U . 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 a b o v e 1 0 N T U t o b e r e m o v e d f r o m d a t a s e t f o r s t a t i s t i c s . "P r o p o s e d P r o v i s i o n a l B a c k g r o u n d C o n c e n t r a t i o n s " o r P P B C s a r e d i s c u s s e d i n C A P P a r t 1 , S e c t i o n 2 . T h e ap p r o a c h t o r e f i n e P P B C s w h e n a d d i t i o n a l d a t a i s a v a i l a b l e i s p r e s e n t e d i n C S A S u p p l e m e n t 2 , S e c t i o n 4 . Th i s a p p r o a c h i n c l u d e s c o n s i d e r a t i o n t o t h e s e c a l c u a t i o n s b y u t i l i z i n g v i a b l e s a m p l e s b e l o w 1 0 N T U . CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e s o l u t i o n So i l C o n t a m i n a t i o n 26 So i l c o n t a m i n a t i o n p l u m e s d o n o t a p p e a r t o b e w e l l d e l i n e a t e d . Sh o w e x t e n t o f p l a n f i g u r e s a n d o n c r o s s s e c t i o n s . Ve r t i c a l d e l i n e a t i o n o f C O I s a r e n o t e d o n c r o s s s e c t i o n s i n c l u d e d i n t h e C S A S u p p l e m e n t 2 . So i l C o n t a m i n a t i o n 27 Co m p a r e s o i l r e s u l t s t o P r e l i m i n a r y S o i l R e m e d i a t i o n G o a l s ( P S R G ) fo r p r o t e c t i o n o f g r o u n d w a t e r s t a n d a r d s ( P O G ) . Wh e r e a d d i t i o n a l s o i l s a m p l e s w e r e c o l l e c t e d a s p a r t o f t h e i n s t a l l a t i o n o f a d d i t i o n a l a s s e s s m e n t w e l l s , th o s e r e s u l t s w i l l b e p r e s e n t e d t o P S R G P O G s t 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 v s . P O G a r e i s s u e f o r s e l e c t e d c o n s t i t u e n t s ; t h i s m a y r e q u i r e re s a m p l i n g . Du k e E n e r g y w o r k e d w i t h t h e l a b s t o r e d u c e t h e r e p o r t i n g l i m i t s . H o w e v e r , l o w e r i n g t h e M R L t o b e l o w t h e PO G w a s n o t a b l e t o b e a c h i e v e d t o d a t e f o r c e r t a i n c o 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 P S R G s , d e t e c t i o n l i m i t s a b o v e s t a n d a r d s i s p r o b l e m a t i c . Re v i e w I H S B G u i d e l i n e s f o r A s s e s s m e n t a n d C l e a n u p s e c t i o n 4. 1 . 1 . 2 t o d e v e l o p s i t e s p e c i f i c b a c k g r o u n d v a l u e s f o r s o i l , i f ap p l i c a b l e Du k e E n e r g y w o r k e d w i t h t h e l a b s t o r e d u c e t h e r e p o r t i n g l i m i t s . H o w e v e r , l o w e r i n g t h e M R L t o b e l o w t h e PO G w a s n o t a b l e t o b e a c h i e v e d t o d a t e f o r c e r t a i n c o 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 ) i s d r i v i n g r i s k , u s e C r ( V I ) i n r e v i e w . I n t h e C A P r e p o r t i n g a s w e l l a s C S A S u p p l e m e n t 2 , C r ( V I ) i s a d d e d t o t h e l i s t o f C O I s i n g r o u n d w a t e r . So i l C o n t a m i n a t i o n 31 N e e d t o c o m p a r e s o i l s r e s u l t s t o C r ( V I ) ( n o t C r ( I I I ) ) . So i l s w i l l b e c o m p a r e d t o t h e P S R G P O G C r ( V I ) s t a n d a r d o f 3 . 8 m g / k g i n s u b s e q u e n t r e p o r t i n g , w h e r e ad d i t i o n a l s o i l s a m p l e s w e r e c o 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 c o n t r o l s a n d t h e e f f e c t s o n c o n t a m i n a n t di s t r i b u t i o n a n d t r a n s p o r t a r e n o t d i s c u s s e d i n C S A . D i s c u s s re l a t i v e t o D O , p H , E h , e t c . I t i s i m p e r a t i v e t h a t t h i s d i s c u s s i o n b e in c l u d e d a s p a r t o f C A P # 1 a s t h i s i s r e q u i r e m e n t o f C A M A . T h e di s c u s s i o n c a n b e r e f i n e d i n C A P # 2 . On J u n e 2 5 , 2 0 1 5 , N C D E Q r e q u e s t e d t h a t t h e s e g e o c h e m i c a l i s s u e s b e a d d r e s s e d i n a S i t e C o n c e p t u a l Mo d e l . T h i s t o p i c w a s i n t r o d u c e d i n t h e C S A a n d a n n o u n c e d t h a t t h e S C M w o u l d b e r e f i n e d a s a n i t e r a t i v e pr o c e s s i n t h e f o r t h c o m i n g C A P . C A P P a r t 1 S e c t i o n 3 . 2 . 2 i n c l u d e d d i s c u s s i o n o f g e n e r a l g e o c h e m i c a l ch a r a c t e r i s t i c s s u c h a s c a t i o n s / a n i o n s , r e d o x p o t e n t i a l , s o l u t e s p e c i a t i o n , a n d K d t e s t i n g . T h e s e i t e m s w e r e fu r t h e r a d d r e s s e d i n C A P P a r t 2 S e c t i o n 2 . 4 . 4 , a n d S e 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 h o w g e o c h e m i c a l c o n d i t i o n s a f f e c t c o 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 ” r e l e a s i n g M n a n d F e ) . On J u n e 2 5 , 2 0 1 5 , N C D E Q r e q u e s t e d t h a t t h e s e g e o c h e m i c a l i s s u e s b e a d d r e s s e d i n a S i t e C o n c e p t u a l Mo d e l . T h i s t o p i c w a s i n t r o d u c e d i n t h e C S A a n d a n n o u n c e d t h a t t h e S C M w o u l d b e r e f i n e d a s a n i t e r a t i v e pr o c e s s i n t h e f o r t h c o m i n g C A P . C A P P a r t 1 S e c t i o n 3 . 2 . 2 i n c l u d e d d i s c u s s i o n o f g e n e r a l g e o c h e m i c a l ch a r a c t e r i s t i c s s u c h a s c a t i o n s / a n i o n s , r e d o x p o t e n t i a l , s o l u t e s p e c i a t i o n , a n d K d t e s t i n g . T h e s e i t e m s a r e fu r t h e r a d d r e s s e d i n C A P P a r t 2 S e c t i o n 2 . 4 . 4 : S i t e G e o c h e m i s t r y a n d I n f l u e n c e o n C O I s , w h i c h t r e a t s s p a t i a l di s t r i b u t i o n o f g r o u n d w a t e r g e o c h e m i s t r y r e l a t i v e t o t h e s o u r c e a r 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 w h e r e d i f f e r e n c e s e x i s t f r o m L e G r a n d c o n c e p t u a l m o d e l . Th e C A P P a r t 2 r e p o r t s t a t e s w h e r e t h e m o d e l i s c o n s i s t e n t w i t h L e G r a n d , s p e c i f i c a l l y i n t h e G r o u n d w a t e r Mi g r a t i o n s u b s e c t i o n , a n d t h e C O I O c c u r r e n c e a n d D i s t r i b u t i o n S e 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 v e l o c i t i e s i n b e d r o c k a n d t r a n s i t i o n z o n e a p p e a r t o be t o o h i g h . V e r i f y o r c o r r e c t t h e s e v a l u e s . D e s c r i b e t r a n s m i s s i v i t y co n c e p t v e r s u s j o i n t f l o w v e l o c i t y . Th e s e v a l u e s w e r e c o r r e c t e d a n d u p d a t e d i n C A P P a r t 2 A p 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 w h y o n e c o n t a m i n a n t m a y b e e l e v a t e d i n a p a r t i c u l a r a r e a . CA P P a r t 2 S e c t i o n 3 . 7 i n c l u d e d a n e x p a n d e d d i s c u s s i o n o f s i t e g e o c h e m i c a l c o n t r o l s o n c o n t a m i n a n t mo b i l i t y a n d m i g r a t i o n t o a d d r e s s t h i s c o 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 h o w c o n s t i t u e n t s a r e m o b i l i z e d o r a t t e n u a t e d . CA P P a r t 2 S e c t i o n 3 . 7 i n c l u d e d a n e x p a n d e d d i s c u s s i o n o f s i t e g e o c h e m i c a l c o n t r o l s o n c o n t a m i n a n t mo b i l i t y a n d m i g r a t i o n t o a d d r e s s t h i s c o 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 g e o c h e m i c a l c o n d i t i o n s a n d m e c h a n i s m s , a n d c h a r g e s , al o n g f l o w p a t h s . D E Q c o n s i d e r s f l o w p a t h s t o b e f r o m t h e ma x i m u m c o n c e n t r a t i o n f o r a C O I t o a r e c e p t o r o r t o t h e co m p l i a n c e b o u n d a r y . Th e g r o u n d w a t e r m o d e l c o n s i d e r s l i n e a r a d s o r p t i o n ( F r e u n d l i c h a d s o r p t i o n f o r s e l e c t C O I s i n t h e B u c k mo d e l ) f o r C O I s ( e x c e p t s u l f a t e a n d c h l o r i d e ) . T h e a d s o r p t i o n t e r m ( K d ) i s u n i f o r m w i t h i n t h e m o d e l do m a i n , i n c l u d i n g f r o m t h e a c t i v e a n d i n a c t i v e a s h b a s i n s / s t o r a g e ( s o u r c e s ) t o d o w n g r a d i e n t m o n i t o r w e l l s an d t h e c o m p l i a n c e b o u n d a r y . C A P P a r t 2 , A p p e n d i x B , g r o u n d w a t e r m o 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 39 De s c r i b e n a t u r e o f s o r p t i v e m a t e r i a l s p r e s e n t i n t h r e e - p a r t s y s t e m an d a l o n g f l o w p a t h s t o r e c e p t o r s . So r p t i o n c o n s t a n t s a n d c a l c u l a t i o n s a r e d e s c r i b e d i n C A P P a r t 2 S e c t i o n 4 . 3 , i n t h e m e t h o d o l o g y s u b s e c t i o n CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e 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 h o w b o r o n , s u l f a t e , T D S “ i s l a n d s ” a r e l o c a t e d a l o n g f l o w pa t h s a n d h o w t h e s e a r e c o n s i d e r e d / i n c o r p o r a t e d i n t o H G C M a n d nu m e r i c a l m o d e l s . Th e g r o u n d w a t e r m o d e l i s s e t u p p e r s o u r c e a r e a a n d t h e n c a l i b r a t e d t o c o n c e n t r a t i o n s o b s e r v e d i n do w n g r a d i e n t m o n i t o r w e l l s . C a l i b r a t i o n t o o b s e r v e d c o n c e n t r a t i o n s i s a c h i e v e d b y a d j u s t i n g s o u r c e co n c e n t r a t i o n s w i t h i n a c t i v e / i n a c t i v e a s h b a s i n s a n d a s h s t o r a g e a r e a s w i t h i n t h e m e a s u r e d v a l u e s , ad j u s t i n g h y d r a u l i c c o n d u c t i v i t y b a s e d o n r e p o r t e d v a l u e s , a d j u s t i n g k d b a s e d o n l a b d a t a , a n d o t h e r me a s u r e d h y d r o g e o l o g i c p r o p e r t i e s . T h e c a l i b r a t i o n a t t e m p t s t o m a t c h c o n c e n t r a t i o n s o b s e r v e d i n do w n g r a d i e n t m o n i t o r w e l l s b y m a t c h i n g t h e f l o w p a t h s a n d t h u s t h e o b s e r v e d C O I “ i s l a n d s ” . T h e m o d e l di d n o t i n c o r p o r a t e T D S ( b o r o n a n d s u l f a t e a r e b o t h i n c l u d e d i n t h e g r o u n d w a t e r m o d e l . C A P P a r t 2 , Ap p e n d i x B , g r o u n d w a t e r m o 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 d r a i n a g e s y s t e m s a t d i k e / d a m s s h o u l d b e s h o w n a n d po t e n t i a l i m p a c t s t o f a t e & t r a n s p o r t m o d e l i n g s h o u l d b e de s c r i b e d i n i n h y d r o g e o l o g i c a n d g e o c h e m i c a l c o n c e p t u a l mo d e l s . Su b s u r f a c e d r a i n a g e s y s t e m s a r e s h o w n a n d d i s c u s s e d i n S e c t i o n 4 o f t h e C S A r e p o r t s . T h e y a r e s h o w n i n th e C S A S e c t i o n 4 F i 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 m e a s u r e d w a t e r l e v e l s o n p o n d s , s t r e a m s , r i v e r s . Po n d , r i v e r , a n d l a k e e l e v a t i o n s w i l l b e s h o w n o n f i g u r e s w h e r e a p p l i c a b l e . F o r e x a m p l e , i n t h e C S A Su p p l e m e n t 2 , t h e s e e l e v a t i o n s a r e i n c l u d e d o n t h e s h a l l o w p o t e n t i o m e t r i c f i g u r e s , b u t n o t o n a l l f l o w 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 c o n c e p t u a l m o d e l n e e d s t o b e p r e s e n t e d i n C A P I . S i t e C o n c e p t u a l M o d e l s w e r e u p d a t e d a n d i n c l u d e d i n t h e C A P P a 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 a n d g e o c h e m i c a l c o n c e p t u a l m o d e l s n e e d t o b e di s c u s s e d i n t e r m s o f s p e c i f i c s o u r c e a r e a s . I n c l u d e u p g r a d i e n t , so u r c e , a n d d o w n g r a d i e n t . D e v e l o p n a r r a t i v e f o r e a c h s o u r c e a r e a an d d o w n g r a d i e n t f o o t p r i n t ( f l o w s y s t e m r e c h a r g e / d i s c h a r g e , ho r i z o n t a l f l o w d i r e c t i o n , f l o w p a t h s e m a n a t i n g f r o m a l l s i d e s (i n c l u d e m a p ) . CA P P a r t 2 S e c t i o n 2 . 4 . 4 i n c l u d e d d i s c u s s i o n o f g e o c h e m i c a l p a r a m e t e r s w i t h c o n s i d e r a t i o n t o w h e t h e r th e r e a r e t r e n d s u p g r a d i e n t o r d o w n g r a d i e n t f r o m t h e s o u r c e . T h e r e f i n e d S C M a l s o i n c l u d e d f l o w p a t h s de t e r m i n e d a c r o s s t h e e n t i r e s i 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 i m p l i c a t i o n s o f v e r t i c a l g r a d i e n t s i n r e c h a r g e a n d d i s c h a r g e ar e a i n e a c h s o u r c e a r e a a n d i t s d o w n g r a d i e n t f o o t p r i n t . Ve r t i c a l h y d r a u l i c g r a d i e n t s w e r e c a l c u l a t e d f o r R o u n d 2 d a t a , a n d w e r e i n c l u d e d i n C A P P a r t 1 . T h e pa t t e r n s i n v e r t i c a l g r a d i e n t s a r e d i s c u s s e d i n C A P P a r t 2 S e 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 e f f e c t s o f r e c e p t o r w e l l s i n d i s c u s s i o n . A l s o i n c l u d e po s s i b l e i m p a c t s f r o m b a s i n t o r e c e p t o r s i n c o n c e p t u a l m o d e l di s c u s s i o n s . In C A P P a r t 2 A p p e n d i x C , t h e i s s u e o f p u m p i n g w e l l s i s d i s c u s s e d . W h e r e a p p r o p r i a t e , p u m p i n g w e l l s a r e in c l u d e d a s a n i n f l u e n c e i n t h e g r o u n d w a t e r m o d e l . F o r e x a m p l e , f o r t h e D E C C l i f f s i d e s i t e , t h e p u m p i n g we l l s w e r e n ' t m o d e l e d b e c a u s e o f t h e i n f l u e n c e o f t h e B r o a d R i v e r . O t h e r D E C s i t e s , s u c h a s A l l e n , B e l e w s Cr e e k , a n d B u c k , t h e p u m p i n g w e l l s w e r e i n c l u d e d i n t h e m o 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 h e t e r o g e n e i t i e s a r e n o t a d e q u a t e l y e x p l a i n e d . E x p l a i n e x i s t i n g he t e r o g e n e i t i e s a n d i m p l i c a t i o n s f o r f a t e a n d t r a n s p o r t m o d e l i n g . De s c r i b e u n c e r t a i n t i e s a n d e x p l a i n i m p a c t o f u n c e r t a i n t i e s . Th e g r o u n d w a t e r m o d e l s a r e b e i n g u p d a t e d a n d r e c a l i b r a t e d i n c l u d i n g n e w d a t a a s i t h a s b e c o m s a v a i l a b l e as p a r t o f t h e e x p a n d e d g r o u n d w a t e r m o d e l d o m a i n a c t i v i t i e s . U n c e r t a i n i t i e s a n d l i m i t a t i o n s w i l l b e pr e s e n t e d a s p a r t o f t h e r e s u l t s , w h i c h a r e e x p e c t e d t o b e c o m p l e t e d d u r i n g F a l l 2 0 1 6 . 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 i m p a c t o f u n c e r t a i n t i e s i n c o n c e p t u a l m o d e l . Th e g r o u n d w a t e r m o d e l s a r e b e i n g u p d a t e d a n d r e c a l i b r a t e d i n c l u d i n g n e w d a t a a s i t h a s b e c o m s a v a i l a b l e as p a r t o f t h e e x p a n d e d g r o u n d w a t e r m o d e l d o m a i n a c t i v i t i e s . U n c e r t a i n i t i e s a n d l i m i t a t i o n s w i l l b e pr e s e n t e d a s p a r t o f t h e r e s u l t s , w h i c h a r e e x p e c t e d t o b e c o m p l e t e d d u r i n g F a l l 2 0 1 6 . 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 t h a t s t r e a m s , w e t l a n d s , e t c . s h o w n i n S e c t i o n 1 2 a r e in c l u d e d o n a l l f i g u r e s a s n e e d e d . I n c l u d e i n c o n c e p t u a l m o d e l di s c u s s i o n s a s a p p r o p r i a t e . CA P P a r t 2 S e c t i o n 2 f i g u r e s i n c l u d e w e t l a n d s a n d s t 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 o f A M E C e c o l o g i c a l s u r v e y r e p o r t f i n d i n g s n o t u t i l i z e d in r e p o r t o r i n f i g u r e s . D a t a s h o u l d b e u s e d , s h o w n o n f i g u r e s o r ex p l a i n e d w h y n o t . Ec o l o g i c a l d a t a c o n c e r n i n g v e g e t a t i o n w a s i n c l u d e d i n t h e C S A S e c t i o n 1 2 R i s k A s s e s s m e n t a n d r e f e r e n c e d in t h e E c o - C h e c k l i s t s p r o v i d e d f o r e a c h s i t e . CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e s o l u t i o n Mo d e l i n g 51 Ba t c h g e o c h e m i c a l m o d e l i n g f o r e a c h o f t h r e e l a y e r s p e r co n s t i t u e n t w i t h n a r r a t i v e o f w h a t h a p p e n s a l o n g f l o w p a t h . Se l e c t f l o w p a t h a l i g n m e n t w i t h M O D P A T H . As p r o v i d e d i n C A P P a r t 2 M o d e l i n g A p p e n d i x B , M o d e l C o n s t r u c t i o n S e c t i o n , e a c h c o n s t i t u e n t w a s mo d e l e d i n o n e o f 7 l a y e r s , w h i c h f a l l i n t o t h e f o l l o w i n g c a t e g o r i e s : A s h m a t e r i a l , D i k e a n d a s h s t o r a g e ma t e r i a l , A l l u v i u m , M 1 S a p r o l i t e , M 2 S a p r o l i t e , T r a n s i t i o n Z o n e , a n d F r a c t u r e d b e d r o c k . Mo d e l i n g 52 De s c r i b e g e o c h e m i c a l c o n d i t i o n s a n d m e c h a n i s m s , a n d c h a r g e s , al o n g f l o w p a t h s . D E Q c o n s i d e r s f l o w p a t h s t o b e f r o m t h e ma x i m u m c o n c e n t r a t i o n f o r a C O I t o a r e c e p t o r o r t o t h e co m p l i a n c e b o u n d a r y . MO D P A T H w a s u s e d t o i d e n t i f y a n d d e l i n e a t e f l o w p a t h s . T h i s i s d i s p l a y e d i n C A P P a r t 2 M o d e l i n g A p p e n d i x B, M o d e l C a l i b r a t i o n i n t h e p a r t i c l e t r a c k i n g f i g u r e . Mo d e l i n g 53 Mo d e l s h o u l d u s e h i g h e s t C O P C i n s o u r c e a r e a f o r m o d e l i n p u t . Th e r e w i l l b e d i f f e r e n t f l o w p a t h s a s f l o w p a t h i s b a s e d o n ma x i m u m c o n c e n t r a t i o n o f C O I . Th e m o d e l p r e s e n t e d i n t h e C A P P a r t 2 A p p e n d i x B u s e s v a r i a b l e c o n c e n t r a t i o n s i n t h e s o u r c e a r e a s t o ma t c h d o w n g r a d i e n t c o n c e n t r a t i o n s o b s e r v e d i n m o n i t o r w e l l s . I n a r e a s w h e r e t h e f l o w p a t h f r o m t h e so u r c e t o a n e l e v a t e d o b s e r v e d c o n c e n t r a t i o n i n a m o n i t o r w e l l i s o b s e r v e d , t h e h i g h e s t m e a s u r e d s o u r c e co n c e n t r a t i o n i s u s e d i n t h e m o d e l . Mo d e l i n g 54 Im p a c t s f r o m F e , M n a r e n o t r e l a t e d t o K d – h o w w i l l m o d e l i n g ad d r e s s t h e s e c o n s t i t u e n t s ? Th e g r o u n d w a t e r m o d e l d o e s n o t a d d r e s s F e a n d M n , h o w e v e r t h e g e o c h e m i c a l m o d e l i n g r e p o r t d o e s tr e a t F e a n d M n a s C O I s ( C A P P a r t 2 A p p e n d i x E ) , a n d d e t e r m i n e s t h e f o r m s t h e y l i k e l y e x i s t i n u n d e r co n d i t i o n s a t t h e r e s p e c t i v e s i t e s ( C A P P a r t 2 A p p e n d i x E S e c t i o n 2 : P o u r b a i x d i a g r a m s ) . Mo d e l i n g 55 Gr o u n d w a t e r m o d e l i n g s h o u l d u s e s i t e s p e c i f i c K d s. So r p t i o n t e r m s w e r e d e v e l o p e d a n d u t i l i z e d a s p a r t o f t h e g r o u n d w a t e r m o d e l i n g p r e s e n t e d i n C A P P a r t 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 a n d H F O o r s o i l s a m p l e s i n a r e a s n o t a f f e c t e d b y a s h . Ex p l a i n d i f f e r e n c e s b e t w e e n t h e s e K d s a n d K d s f r o m i m p a c t e d ar e a s . A u n i f o r m K d v a l u e f o r t h e g r o u n d w a t e r m o d e l w a s u t i l i z e d a s t h e s e v a l u e s a r e v a r i a b l e f r o m s a m p l e t o sa m p l e , r e g a r d l e s s o f s i t e l o c a t i o n ( C A P P a r t 2 , A p p e n d i x A , G r o u n d w a t e r M o d e l ) . Mo d e l i n g 57 Gr o u n d w a t e r f l o w m o d e l i n g i n C A P n e e d s t o a c c o u n t f o r cu m u l a t i v e e f f e c t o f o f f - s i t e r e c e p t o r w e l l s ( i . e . , w a t e r s u p p l y we l l s ) . N e e d t o c o m e u p w i t h s o m e a s s u m p t i o n s r e g a r d i n g d e p t h an d y i e l d . C S A r e p o r t s g e n e r a l l y d i s c o u n t p o t e n t i a l f o r u p g r a d i e n t fl o w d i r e c t i o n r e s u l t i n g f r o m o f f - s i t e p u m p i n g . M o d e l r e s u l t s n e e d to b e i n c l u d e d i n t h e C A P n o w a n d r e v i s e o n c e r e s u l t s a r e i n f r o m da t a g a p w e l l s t h a t a r e l o c a t e d t o h e l p i n f o r m g r o u n d w a t e r f l o w di r e c t i o n n e a r t h e p r o p e r t y b o u n d a r y . Th e c u m u l a t i v e e f f e c t o f o f f - s i t e r e c e p t o r w e l l s w e r e a c c o u n t e d f o r i n t h e g r o u n d w a t e r m o d e l i n g ( C A P P a r t 2 M o d e l i n g A p p e n d i x B ) . T h e y i e l d o f t h e s e w e l l s w a s e s t i m a t e d a t 4 0 0 g p d , w h i c h i s t h e a v e r a g e E P A ho u s e h o l d u s a g e . T h e g r o u n d w a t e r m o d e l s a r e b e i n g u p d a t e d a n d r e c a l i b r a t e d i n c l u d i n g n e w d a t a a s i t ha s b e c o m s a v a i l a b l e a s p a r t o f t h e e x p a n d e d g r o u n d w a t e r m o d e l d o m a i n a c t i v i t i e s , i n c l u d i n g w a t e r s u p p l y we l l i n f o r m a t i o n . U n c e r t a i n i t i e s a n d l i m i t a t i o n s w i l l b e p r e s e n t e d a s p a r t o f t h e r e s u l t s , w h i c h a r e e x p e c t e d to b e c o m p l e t e d d u r i n g F a l l 2 0 1 6 . Mo d e l i n g 58 A d d r e s s h i s t o r i c w a t e r l e v e l s i n p o n d i n g r o u n d w a t e r m o d e l i n g . Th e g r o u n d w a t e r m o d e l w a s c a l i b r a t e d t o s t e a d y - s t a t e f l o w c o n d i t i o n s a n d c o n s i d e r e d w a t e r l e v e l s f r o m su m m e r 2 0 1 5 . H i s t o r i c w a t e r l e v e l s i n t h e p o n d s w e r e n o t m o d e l e d . T h e t i m i n g o f s t a r t o f t h e a s h op e r a t i o n s i n d i f f e r e n t b a s i n s w a s c o n s i d e r e d i n t h e g r o u n d w a t e r m o d e l . T h e g r o u n d w a t e r m o d e l s a r e be i n g u p d a t e d a n d r e c a l i b r a t e d i n c l u d i n g n e w d a t a a s i t h a s b e c o m s a v a i l a b l e a s p a r t o f t h e e x p a n d e d gr o u n d w a t e r m o d e l d o m a i n a c t i v i t i e s , i n c l u d i n g h i s t o r i c w a t e r l e v e l s . Mo d e l i n g 59 Ne e d t o d i s c u s s h o w g r o u n d w a t e r m o d e l r e s u l t s a r e i n c o r p o r a t e d in s u r f a c e w a t e r m o d e l r e s u l t s ( i n c l u d i n g h o w o n - s i t e s t r e a m s a r e in c o r p o r a t e d ) . Th e C A P P a r t 1 S u r f a c e w a t e r m o d e l i n g A p p e n d i x d e t a i l s h o w g r o u n d w a t e r m o d e l r e s u l t s a r e i n c o r p o r a t e d in s u r f a c e w a t e r m o d e l r e s u l t s . Mo d e l i n g 60 De e p r o c k g r o u n d w a t e r f l o w n o t w e l l p r e s e n t e d r e l a t i v e t o o f f - s i t e pu m p i n g . T h i s n e e d s t o b e p r e s e n t e d i n C A P . Pa r t i c l e f l o w m a p s t h a t t a k e i n t o a c c o u n t o f f s i t e p u m p i n g a r e p r e s e n t e d i n t h e g r o u n d w a t e r m o d e l i n g Ap p e n d i x B o f t h e C A P P a r t 2 . Mo d e l i n g 61 Su b s u r f a c e d r a i n a g e s y s t e m s a t d i k e / d a m s s h o u l d b e s h o w n a n d po t e n t i a l i m p a c t s t o f a t e & t r a n s p o r t m o d e l i n g s h o u l d b e co n s i d e r e d . Su b s u r f a c e d r a i n a g e s y s t e m s a r e s h o w n a n d d i s c u s s e d i n S e c t i o n 4 o f t h e C S A r e p o r t s . CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e 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 r e q u i r e – s e e p , s e d i m e n t , s u r f a c e w a t e r , r e c e p t o r w e l l da t a , r e s u l t s s h o w a l l C O I s ( f i e l d a n d r e s u l t s ) i n c h e m b o x e s . CA P P a r t 2 i n c l u d e d c h e m b o x m a p s f o r s e e p s , s e d i m e n t s , s u r f a c e w a t e r , a n d g r o u n d w a t e r . C h e m b o x e s f o r re c e p t o r w e l l s w e r e n o t a b l e t o b e s h o w n s p a t i a l l y f o r a l l s a m p l i n g e v e n t s , h o w e v e r , F i g u r e 1 - 3 i n t h e C S A Su p p l e m e n t 2 s h o w s l o c a t i o n a n d a n a l y t i c a l r e s u l t s . Da t a P r e s e n t a t i o n 63 Sh o w c o n c e n t r a t i o n s a b o v e P Q L s o n c h e m b o x m a p s , n o t j u s t co n s t i t u e n t s a b o v e 2 L . Ch e m b o x m a p s s h o w a l l d e t e c t e d c o n s t i t u e n t s f o r d e t e c t i o n a n d a s s e s s m e n t m o n i t o r i n g c o n s t i t u e n t s a s pa r t o f t h e C A P P a r t 2 . Da t a P r e s e n t a t i o n 64 A d d v e r t i c a l g r a d i e n t s t o f i g u r e s – p l a n v i e w . CA P P a r t 1 S e c t i o n 3 i n c l u d e d f i g u r e s d e p i c t i n g v e r t i c a l g r a d i e n t s b e t w e e n s h a l l o w a n d d e e p w e l l s , a n d be t w e e n d e e p a n d b e d r o c k w e l l s . Da t a P r e s e n t a t i o n 65 A d d v e r t i c a l g r a d i e n t m a p s . CA P P a r t 1 S e c t i o n 3 i n c l u d e s f i g u r e s d e p i c t i n g v e r t i c a l g r a d i e n t s b e t w e e n s h a l l o w a n d d e e p w e l l s , a n d be t w e e n d e e p a n d b e d r o c k w e 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 p o t e n t i o m e t r i c s u r f a c e m a p f o r t h e t r a n s i t i o n z o n e we l l s . De e p f l o w l a y e r w e l l s a r e u s e d t o i n v e s t i g a t e t h e t r a n s i t i o n z o n e , a n d p o t e n t i o m e t r i c s u r f a c e s f i g u r e s w e r e de v e l o p e d a s p a r t o f t h e C A P P a r t 2 a s w e l l a s C S A S u 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 c a t i o n - a n i o n b a l a n c e v a l u e s o n P i p e r d i a g r a m s , r e m o v e re s u l t s w i t h b a l a n c e d i f f e r e n c e s > 1 0 % . Pi p e r d i a g r a m f i g u r e s a r e i n S e c t i o n 1 0 o f t h e C S A . U p d a t e d p i p e r d i a g r a m s u t i l i z i n g R o u n d 5 d a t a h a v e be e n i n c l u d e d i n t h e C S A S u p p l e m e n t 2 t o i n c l u d e o n l y t h o s e e v e n t s w i t h b a l a n c e d i f f e r e n c e s t h a t a r e l e s s th a n 1 0 % . Da t a P r e s e n t a t i o n 68 Sh o w a l l r e c e p t o r w e l l s o n f i g u r e s g i v e n t h e e x i s t i n g f i g u r e ex t e n t s . Fi g u r e 1 - 3 i n t h e C S A S u p p l e m e n t 2 p r e s e n t s a l l r e c e p t o r w e l l s a n d t h e i r a n a l y t i c a l r e s u l t s . T h o s e w a t e r su p p l y w e l l s t h a t c a n b e s h o w n i n t h e v i e w p o r t s o f t h e t h e p o t e n t i o m e t r i c s u r f a c e a n d i s o c o n c e n t r a t i o n fi g u r e s i n t h e C S A S u p p l e m e n t 2 a r e a l s o i n 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 o n e m a p w i t h a l l r e c e p t o r w e l l s a n d M W s . F i g u r e 1 - 3 i n t h e C S A S u p p l e m e n t 2 p r e s e n t s a l l r e c e p t o r w e l l s a n d t h e i r a n a l y t i c a l r e s u l t s . Da t a P r e s e n t a t i o n 70 S h o w s e e p r e s u l t s w i t h c h e m b o x e s . S e e p s a n d D E Q S e e p s w e r e p r o v i d e d i n C A P P a r t 1 S e c t i o n 2 f i g u r e s . Da t a P r e s e n t a t i o n 71 Sh o w t o p o g r a p h y o n g r o u n d w a t e r s u r f a c e c o n t o u r m a p s ( a d d el e v a t i o n l a b e l s t o c o n t o u r s ) . To p o g r a p h y h a s b e e n i n c l u d e d o n t h e p o t e n t i o m e t r i c s u r f a c e f i g u r e s p r o v i d e d i n C S A S u p p l e m e n t 2 . Da t a P r e s e n t a t i o n 72 Ad d g e o l o g i c d a t a a n d i s o - c o n c e n t r a t i o n d a t a ( i n c l u d e K d s) o n cr o s s - s e c t i o n s . Cr o s s - s e c t i o n s w i l l b e e x p a n d e d w i t h a d d i t i o n a l a s s e s s m e n t m o n i t o r i n g w e l l s f o r t h e C S A S u p p l e m e n t 2 . Th e s e w i l l i n c l u d e l i t h o l o g y , r e c o v e r y , R Q D , w h e r e a v a i l a b l e , a s w e l l a s t h e v e r t i c a l e x t e n t o f C O I s Da t a P r e s e n t a t i o n 73 A d d f i g u r e s h o w i n g p H , E h , e t c . r e s u l t s . C A P P a r t 1 S e c t i o n 2 C h e m B o x f i g u r e s i n c l u d e d f i e l d p a 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 t a b l e w / N P D E S s a m p l e e v e n t r e s u l t s . A N P D E S s a m p l e e v e n t s r e s u l t s t a b l e h a s b e e n p r o v i d e d i n S e c t i o n 1 o f t h e C S A S u p p l e m e n t 2 . Da t a P r e s e n t a t i o n 75 Ch e m b o x f i g u r e s f o r g r o u n d w a t e r – a d d r o u n d 2 d a t a a s c o l u m n to r i g h t o f e x i s t i n g d a t a . Ro u n d 2 c h e m b o x f i g u r e s w e r e i n c l u d e d i n C A P P a r t 2 . Da t a P r e s e n t a t i o n 76 Is o c o n t o u r s - N e e d t o a d d r e s s h o w i s o c o n t o u r l i n e s a r e s h o w n o n fi g u r e s . S h o w p a r t o f t h e l i n e a s d a s h e d w h e r e u n c e r t a i n t y e x i s t s (i . e . , n o d o w n g r a d i e n t d a t a t o h e l p d e t e r m i n e e x t e n t o f i s o co n t o u r ) . D e p i c t c o n c e n t r a t i o n s a b o v e r e p o r t i n g l i m i t . Ad d i s o - c o n t o u r f i g u r e f o r s t r o n t i u m . Is o c o n c e n t r a t i o n m a p s u t i l i z i n g R o u n d 5 a n a l y t i c a l r e s u l t s , i n c l u d i n g s t r o n t i u m , w h e r e i t i s a C O I , a r e in c l u d e d i n C S A S u 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 t o s h o w n a t u r a l r e s o u r c e i n f o r m a t i o n ( i . e . , s u r f a c e w a t e r fe a t u r e s , w e t l a n d f e a t u r e s , h e r o n r o o k e r y a t B u c k , e t c . ) o n “ b a s e ma p ” f i g u r e s . CA P P a r t 2 S e c t i o n 2 f i g u r e s i n c l u d e s w e t l a n d s a n d s t r e a m s w h i c h w e r e d e l i n e a t e d b y U S A C E . O t h e r na t u r a l r e s o u r c e s w e r e i n c l u d e d o n f i g u r e s a s p a r t o f t h e E c o - C h e c k l i s t r e f e r e n c e d i n S e c t i o n 1 2 o f t h e C S A . Da t a P r e s e n t a t i o n 78 En s u r e t h a t s t r e a m s , w e t l a n d s , e t c . s h o w n i n S e c t i o n 1 2 a r e in c l u d e d o n a l l f i g u r e s a s n e e d e d . CA P P a r t 2 S e c t i o n 2 f i g u r e s i n c l u d e d w e t l a n d s a n d s t r e a m s a s n e 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 r e s u l t s t a b l e s t o i n c l u d e f i e l d p a r a m e t e r s D O s , E h , s p e c co n d u c t a n c e , p H , N T U i n a l l r e s u l t s t a b l e s . Fi e l d p a r a m e t e r s w e r e i n c l u d e d o n t h e C A P P a r t 2 r e s u l t s t a b l e s , r e f e r e n c e d i n S e c t i o n 2 , a s w e l l a s t h e C S A Su p p l e m e n t 2 r e s u l t s t a b l e s , r e f e r e n c e d i n S e 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 S W h y d r o l o g y ( s t r e a m s , w e t l a n d s ) i n C A P a n d h o w re l a t e s t o s e e p s i n C S M . CA P P a r t 2 , S e c t i o n 3 p e r t a i n s t o t h e S i t e C o n c e p t u a l m o d e l , a n d i t d i s c u s s e s s u r f a c e w a t e r a n d s e e p s i n re l a t i o n t o s i t e s o u r c e a r 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 f o r a l i g n m e n t o f d e s c r i p t i o n o f s t r e a m s a n d w e t l a n d s i n Se c t i o n 1 2 . CA P P a r t 2 , S e c t i o n 3 p e r t a i n s t o t h e S i t e C o n c e p t u a l m o d e l , a n d i t d i s c u s s e s s u r f a c e w a t e r a n d s e e p s i n re l a t i o n t o s i t e s o u r c e a r e a s . CSA Supplement 2 Ta b l e 2 - 1 : R e s p o n s e s t o G l o b a l N C D E Q C o 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 Ge n e r a l R e 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 a l l s u r f a c e w a t e r f e a t u r e s o n m a p s a n d c r o s s s e c t i o n s . CS A a n d C A P s i t e m a p s i n c l u d e l a b e l s o f m a j o r s u r f a c e w a t e r b o d i e s a t e a c h s i t e . I n a d d i t i o n , t h e C S A in c l u d e d s u r f a c e w a t e r i n f o r m a t i o n i n F i g u r e 4 - 4 : S u r f a c e W a t e r B o d i e s . C A P P a r t 2 i n c l u d e d F i g u r e 3 - 1 : S i t e Co n c e p t u a l M o d e l , a n d F i g u r e 3 - 2 : C r o s s S e c t i o n w i t h t h e s e f e 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 w o r d i n g o n s t r e a m f l o w m e a s u r e m e n t s p e r f o r m e d . St r e a m f l o w m e a s u r e m e n t s h a v e b e e n i n c o r p o r a t e d i n t o t h e e x p a n d e d g r o u n d w a t e r m o d e l d o m a i n ac t i v i t i e s . T h e g r o u n d w a t e r m o d e l s a r e b e i n g u p d a t e d a n d r e c a l i b r a t e d i n c l u d i n g n e w d a t a a s i t h a s be c o m s a v a i l a b l e a n d i s e x p e c t e d t o b e c o m p l e t e d d u r i n g F a l l 2 0 1 6 . Ri s k A s s e s s m e n t 84 In c l u d e n o n - t r e s p a s s i n g r e c r e a t i o n u s e r s o f s u r f a c e w a t e r a n d dr i n k i n g w a t e r w e l l r e c e p t o r s . In t h e s t a n d - a l o n e R i s k A s s e s s m e n t r e p o r t , r e c r e a t i o n a l s w i m m e r s , b o a t e r s , w a d e r s , a n d f i s h e r s a r e in c l u d e d i n t h e r e c e p t o r s , a s a r e c u r r e n t / f u t u r e o f f - s i t e r e s i d e n t s . I n a d d i t i o n , a s e p a r a t e r i s k a s s e s s m e n t ha s b e e n p r o v i d e d s u b s e q u e n t t o t h e C S A r e p o r t b y D u k e E n e r g y v i a H a l e y & A l d r i t c h . Ri s k A s s e s s m e n t 85 Co a l a s h s h o u l d b e i n c l u d e d a s p r i m a r y a f f e c t e d m e d i a u n t i l i t i s co m p l e t e l y r e m o v e d o r o t h e r w i s e m a d e i n a c c e s s i b l e t o h u m a n co n t a c t . R e v i s e T a b l e s 1 2 - 1 , 1 2 - 2 , a n d w o r d i n g i n S e c t i o n 1 2 . A s e p a r a t e r i s k a s s e s s m e n t h a s b e e n p r o v i d e d s u b s e q u e n t t o t h e C S A r e p o r t b y D u k e E n e r g y v i a H a l e y & 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 s p e c i a t i o n r e s u l t s d i s c u s s i o n w i t h r e g a r d s t o r e c e p t o r s . A s e p a r a t e r i s k a s s e s s m e n t h a s b e e n p r o v i d e d s u b s e q u e n t t o t h e C S A r e p o r t b y D u k e E n e r g y v i a H a l e y & Al d r i t c h . In a d e q u a t e D a t a – A l l So u r c e A r e a s 87 Wh e r e 2 L e x c e e d a n c e s i n t e r c e p t r i v e r s / s t r e a m s i m p l i c a t i o n s sh o u l d b e d i s c u s s e d . D i s c u s s v e r t i c a l g r a d i e n t s f o r w e l l p a i r s ad j a c e n t t o r i v e r s / s t r e a m s . Ve r t i c a l h y d r a u l i c g r a d i e n t s w e r e c a l c u l a t e d f o r R o u n d 2 d a t a , a n d w e r e i n c l u d e d i n C A P P a r t 1 . T h e pa t t e r n s i n v e r t i c a l g r a d i e n t s a r e d i s c u s s e d i n C A P P a r t 2 S e c t i o n 2 . 3 . 1 . 1 . In a d e q u a t e D a t a – A l l So u r c e A r e a s 88 If a M W d o e s n o t e x i s t b e t w e e n a 2 L e x c e e d a n c e a n d r e c e p t o r (s t r e a m a n d w a t e r s u p p l y w e l l ) a d d i t i o n a l w e l l s o r t r a n s p o r t mo d e l i n g i s n e e d e d t o f i l l d a t a g a p . Du k e E n e r g y h a s i n s t a l l e d a d d i t i o n a l m o n i t o r i n g w e l l s t o a d d r e s s c o n c e r n s t o r e f i n e u n d e r s t a n d i n g o f ex c e e d a n c e s . R e s u l t s f r o m t h e R o u n d 5 , i n c l u d i n g a d d i t i o n a l a s s e s s m e n t w e l l s , h a s b e e n i n c l u d e d i n C S A Su p p l e m e n t 2 . In a d e q u a t e D a t a – A l l So u r c e A r e a s 89 If u n c e r t a i n t y e x i s t s a b o u t l o c a l f l o w d u e t o i n s u f f i c i e n t n u m b e r o r pl a c e m e n t o f w e l l s , t h e n a d d i t i o n a l w e l l s s h o u l d b e i n s t a l l e d . Sa m e c o m m e n t a p p l i e s f o r u n c e r t a i n t y o n v e r t i c a l g r a d i e n t s . Du k e E n e r g y h a s i n s t a l l e d a d d i t i o n a l m o n i t o r i n g w e l l s t o a d d r e s s c o n c e r n s t o r e f i n e u n d e r s t a n d i n g o f ex c e e d a n c e s . R e s u l t s f r o m t h e R o u n d 5 , i n c l u d i n g a d d i t i o n a l a s s e s s m e n t w e l l s , h a s b e e n i n c l u d e d i n C S A Su p p l e m e n t 2 . CSA Supplement 2 Ta b l e 2 - 2 : T o t a l P o r o s i t y , S e c o n d a r y ( E f f e c t i v e ) P o r o s i t y / S p e c i f i c Y i e l d , a n d S p e c i f i c S t o r a g e f o r L o w e r H y d r o s t r a t i g r a p h i c U n i t s ( T Z a n d B 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 a l 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 Riverbend 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 er M o n i t o r i n g AB - 1 D A B - 1 S A B - 2 D A B - 2 S A B - 3 B R A B - 3 D A B - 4 D A B - 5 D A B - 6 B R U A B - 6S 3/ 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N N N N RV - A B - 1 D R V - A B - 1 S R V - A B - 2 D R V - A B - 2 S R V - A B - 3 B R R V - A B - 3 D R V -AB-4D R V - A B - 5 D R V - A B - 6 B R U R V - A B - 6 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 und 5 Round 5 Round 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 3 0 7 0 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 1 9 0 0 3 7 4 0 0 0 1 5 4 0 0 5 0 0 0 U 3 3 0 0 0 5 0 0 0 U Al k a l i n i t y , H C O 3 N - - u g / l 1 1 1 0 0 1 0 0 0 J 1 0 6 0 0 0 6 8 0 0 5 0 0 0 U 5 0 0 0 U 3 9 9 0 0 2 0 4 0 0 0 5 0 3 0 0 4 5 5 0 0 Al k a l i n i t y , l a b N - - u g / l 3 1 8 0 0 0 1 0 0 0 J 1 0 6 0 0 0 6 8 0 0 7 9 8 0 0 8 8 2 0 0 0 5 5 3 0 0 2 0 4 0 0 0 J + 8 3 3 0 0 4 5 5 0 0 Al u m i n u m D - - u g / l 5 0 0 1 0 0 U 1 0 0 U 1 0 0 U 6 7 J 8 8 J 1 0 0 U 3 4 0 650 480 Al u m i n u m T - - u g / l 5 9 8 3 0 6 2 9 0 8 4 . 3 J 1 2 2 6 0 6 3 9 4 1 1 8 0 7 23 3130 J+ An t i m o n y D - - u g / l 3 . 6 0 . 1 5 J 0 . 1 4 J 1 . 9 2 . 5 2 . 7 J 0 . 7 4 1 . 1 1.4 0.36 J An t i m o n y T 1 IM A C u g / l 4. 2 J 0. 7 2 0 . 1 J 2. 2 2 . 7 2 . 3 J 1 . 6 1 . 6 1 . 7 0.4 J Ar s e n i c D - - u g / l 0 . 2 0 . 1 U 0 . 2 5 0 . 0 7 3 J 0 . 9 9 2 U 0 . 6 4 0 . 2 8 0.2 0.77 Ar s e n i c T 1 0 0 2 L u g / l 1 U 0 . 0 7 8 J 0 . 2 5 0 . 1 1 1 . 1 2 U 0 . 8 0 . 5 5 0.22 0.86 Ba r i u m D - - u g / l 4 1 1 5 2 4 2 1 6 . 5 3 7 0 3 . 9 J 3 3 7 . 7 1 1 Ba r i u m T 7 0 0 0 2 L u g / l 4 9 . 4 1 6 . 8 2 9 2 5 . 1 7 . 5 3 9 6 6 . 1 3 9 . 5 8.2 18.6 Be r y l l i u m D - - u g / l 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 1 4 J 2 U 0 . 1 U 0.1 U 0 . 0 5 5 J 0 . 1 U Be r y l l i u m T 4 IM A C u g / l 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 03 J Bo r o n D - - u g / l 4 3 J 5 0 U 3 9 0 5 0 U 5 0 U 5 0 U 5 0 U 1 7 0 4 2 0 5 0 U Bo r o n T 7 0 0 0 2 L u g / l 4 3 . 7 J 5 0 U 4 3 3 5 0 U 5 0 U 5 0 U 5 0 U 1 4 9 4 62 35.1 J Ca d m i u m D - - u g / l 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 1 . 6 U 0 . 08 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U Ca d m i u m T 2 0 2 L u g / l 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 1 . 6 U 0 .08 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U Ca l c i u m T - - u g / l 8 7 9 0 0 6 2 8 3 0 1 0 0 1 1 0 0 3 1 5 0 2 2 8 0 0 0 1 3 7 0 0 44500 39000 20000 Ca r b o n N - - u g / l 1 1 0 0 1 0 0 0 U 1 0 0 0 U 2 2 1 0 0 9 1 0 J 5 7 0 0 - - 1 7 0 0 6200 1500 Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l 5 2 0 0 3 8 0 0 5 5 0 0 1 2 5 0 0 2 1 0 0 7 8 0 0 2 0 0 0 5 0 0 0 5 5 0 0 7 9 0 0 Ch r o m i u m D - - u g / l 8 . 2 0 . 5 3 1 . 6 0 . 7 2 0 . 3 3 J + 3 0 . 2 2 J + 1 . 4 J+ 2 3 . 6 0 . 1 6 J Ch r o m i u m T 10 02 L u g / l 11 . 4 1. 3 J + 2 . 2 J + 0 . 9 J + 0 . 2 2 J + 39 . 5 2.7 3 J+31.8 5.9 Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l 8. 4 0. 0 3 U 1. 1 0. 0 1 2 J 0 . 0 2 5 J + 34 . 3 J 1 . 9 0 . 9 6 0 . 9 6 0.03 U Co b a l t D - - u g / l 0 . 0 2 1 J 1 4 . 1 0 . 1 6 1 5 . 6 0 . 0 4 1 J 2 U 0 . 0 1 2 J 0 . 0 1 6 J 0 . 5 9 0 . 4 6 Co b a l t T 1 IM A C u g / l 0 . 1 6 J 14 0. 3 5 16 . 4 0. 0 3 4 J + 2 U 0 . 2 3 0 . 0 8 9 J 0 . 5 9 3.8 Co p p e r D - - u g / l 1 . 1 4 . 1 0 . 7 4 1 . 6 0 . 5 4 1 8 . 2 0 . 3 6 J 0 . 2 6 J 2 . 4 0 . 2 2 J Co p p e r T 1 0 0 0 0 2 L u g / l 5 U 1 . 1 3 . 5 1 . 8 0 . 3 J 2 2 . 1 1 . 3 0 . 8 2 J+ 2 J + 3 J + Ir o n D - - u g / l 5 0 U 5 0 U 5 0 U 4 3 J 5 0 U 5 0 U 5 0 U 5 0 U 1 8 0 3 9 J Ir o n T 30 0 02 L u g / l 2 8 J 83 4 25 8 1 4 2 6 2 . 8 4 5 . 8 J 305 40.9 J 368 4990 Le a d D - - u g / l 0 . 1 U 0 . 1 2 0 . 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 0.23 Le a d T 1 5 0 2 L u g / l 1 U 0 . 2 8 0 . 1 U 0 . 1 1 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 .1 U 1 . 5 Ma g n e s i u m T - - u g / l 6 0 . 3 J 6 9 8 7 6 1 0 4 4 1 5 4 . 8 J 1 0 0 U 2 2 0 0 2110 9860 590 Ma n g a n e s e D - - u g / l 5 U 1 8 0 4 5 3 4 0 5 U 5 U 5 U 5 U 7 . 1 1 8 0 Ma n g a n e s e T 50 02 L u g / l 5 U 19 3 5 4 . 3 3 5 3 5 U 5 U 8 . 3 5 U 1 1 . 1 244 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 0 . 2 J - Me r c u r y T 1 0 2 L u g / l 0 . 2 U 0 . 0 9 6 J 0 . 2 U 0 . 1 8 J 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 2 . 4 J + 5 6 . 4 1 . 3 J 2 8 6 1 . 7 J + 4 . 8 J + 1 . 4 J + 2 . 4 J + 1 . 5 J + 1 4 3 Mo l y b d e n u m D - - u g / l 6 . 6 0 . 5 U 0 . 9 6 0 . 3 2 J 3 . 9 3 4 . 1 0 . 4 6 J 5 . 8 2 . 3 2 . 6 Mo l y b d e n u m T - - u g / l 7 . 2 0 . 5 U 0 . 9 5 0 . 3 5 J 4 3 4 . 7 0 . 6 3 7 . 4 2.7 1.8 Ni c k e l D - - u g / l 0 . 6 4 4 0 . 7 7 2 1 . 5 1 0 U 0 . 5 U 0 . 5 U 1 2 . 7 1 Ni c k e l T 1 0 0 0 2 L u g / l 5 U 3 . 3 1 2 0 . 5 U 1 0 U 0 . 7 5 1 . 1 1 8 . 8 2.6 Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l 1 5 J 7 6 0 2 0 0 3 1 0 2 0 U 5 3 5 7 0 1 3 0 2 9 2 0 U Po t a s s i u m T - - u g / l 6 2 4 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 3 0 0 0 0 1 5 0 0 0 0 6 0 5 0 7 0 1 0 0 1 6 5 0 0 5 0 0 0 U Se l e n i u m D - - u g / l 0 . 5 9 0 . 5 U 0 . 5 U 0 . 5 3 1 3 . 7 1 0 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 3 9 J Se l e n i u m T 2 0 0 2 L u g / l 5 U 0 . 5 U 0 . 5 U 0 . 5 5 1 4 . 9 1 0 U 0 . 5 U 0 .5 U 0 . 5 U 0 . 7 5 So d i u m T - - u g / l 2 0 9 0 0 5 0 0 0 U 1 0 4 0 0 2 5 8 0 0 2 4 0 0 0 1 1 1 0 0 0 7 840 31700 11000 7980 St r o n t i u m D - - u g / l 4 5 0 6 . 1 1 7 0 1 1 1 7 0 5 9 0 0 1 2 0 4 4 0 2 7 0 97 St r o n t i u m T - - u g / l 5 2 5 6 . 5 1 8 3 1 2 . 8 1 9 5 6 3 2 0 1 4 6 5 2 9 3 08 121 Su l f a t e N 25 0 0 0 0 02 L u g / l 3 1 1 0 0 7 5 0 J 1 5 9 0 0 3 7 4 0 0 1 4 8 0 0 1 2 0 0 0 0 7 1 0 0 6 2 0 00 95700 16100 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 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 0 . 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 2 8 J Th a l l i u m T 0. 2 IM A C u g / l 1 U 0 . 1 U 0 . 1 U 0 . 0 3 7 J 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 U 0.055 J 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 3 6 6 0 0 0 2 5 0 0 0 U 1 8 0 0 0 0 9 3 0 0 0 1 2 9 0 0 0 95 0 0 0 0 112000 311000 210000 97000 To t a l O r g a n i c C a r b o n N - - u g / l - - - - - - - - - - - - 1 0 0 0 U - - - - - - To t a l S u s p e n d e d S o l i d s N - - u g / l 2 5 0 0 0 U 2 0 4 0 0 5 1 0 0 4 0 0 0 0 3 4 0 0 1 7 0 0 0 3 2 0 0 1 7 1 0 0 2 1 4 0 0 2 3 8 0 0 Ur a n i u m , N a t u r a l T - - u g / l - - - - - - - - - - - - - - - - - - - - Va n a d i u m D - - u g / l 9 . 3 0 . 1 2 J 5 . 8 0 . 3 U 1 4 . 8 7 . 7 1 6 1 1 . 6 10.5 5.9 Va n a d i u m T 0. 3 IM A C u g / l 10 1 . 9 6 . 2 0. 2 6 J 15 . 8 8 . 7 1 7 . 5 1 2 . 6 1 0 . 2 2 2 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 : 1 o f 1 8 Riverbend 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 er M o n i t o r i n g AB - 1 D A B - 1 S A B - 2 D A B - 2 S A B - 3 B R A B - 3 D A B - 4 D A B - 5 D A B - 6 B R U A B - 6S 3/ 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N N N N RV - A B - 1 D R V - A B - 1 S R V - A B - 2 D R V - A B - 2 S R V - A B - 3 B R R V - A B - 3 D R V -AB-4D R V - A B - 5 D R V - A B - 6 B R U R V - A B - 6 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 und 5 Round 5 Round 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 : Zi n c D - - u g / l 8 J 2 2 1 0 U 2 5 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U Zi n c T 1 0 0 0 0 2 L u g / l 2 . 6 J 1 8 . 6 1 0 U 1 6 . 2 2 . 9 J 4 . 1 J 4 . 4 J 1 0 U 2 . 9 J 2 2 . 1 Di s s o l v e d O x y g e n N - - m g / l 0 . 3 0 . 4 0 . 8 0 . 3 0 . 6 0 . 6 2 . 1 0.4 0.21 0.08 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 - 1 0 6 . 8 2 3 1 . 9 5 7 . 8 3 0 8 . 1 - 1 6 2 . 6 - 1 3 8 . 1 7 4 . 7 - 1 7 4 . 1 4 7 1 3 . 6 pH N 6. 5 - 8 . 5 02 L S U 12 . 2 5 7. 2 5 1 0 . 8 1 2 . 3 9 . 3 1 1 . 9 9 . 8 9 Sp e c i f i c C o n d u c t i v i t y N - - µ S / c m 1 6 9 5 2 8 2 7 1 . 4 1 6 1 . 4 3 0 8. 3 4 0 6 0 1 5 0 . 1 1 3 0 8 3 6 1 . 9 1 5 3 . 5 Te m p e r a t u r e N - - D e g C 1 6 . 3 2 1 . 5 1 7 1 7 . 8 2 0 . 9 1 9 . 5 1 9 . 8 19 18.5 20.4 Tu r b i d i t y , f i e l d N - - N T U 6 . 4 1 3 . 1 2 9 . 8 4 1 4 . 8 1 . 6 7 9 . 2 5 9 . 1 7 4 2 . 3 4 1 0 5 . 4 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 ie 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 al 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 if 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 ) 2 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 : AB - 7 D A B - 7 I A B - 8 D A B - 8 S B G - 1 D B G - 1 S B G - 2 B R B G - 2 D B G - 2 S B G - 3 D 3/ 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 01 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 N N N N N N N N N N RV - A B - 7 D R V - A B - 7 I R V - A B - 8 D R V - A B - 8 S R V - B G - 1 D R V - B G - 1 S R V - BG-2BR R V - B G - 2 D R V - B G - 2 S R V - B G - 3 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 und 5 Round 5 Round 5 77 2 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 2 1 6 0 0 0 5 0 0 0 U 5 0 0 0 U 9 8 6 0 0 5 0 00 U 5000 U 15 9 0 0 7 5 0 0 4 9 1 0 0 5 0 0 0 J 5 0 0 0 U 5 5 0 0 9 9 9 0 0 5 0 0 0 U 3 0 4 0 0 34500 93 1 0 0 7 5 0 0 4 9 1 0 0 5 0 0 0 J 3 2 4 0 0 0 5 5 0 0 9 9 9 0 0 1 1 4 0 0 0 3 0 4 00 34500 75 0 1 0 0 U 1 5 0 1 0 0 U 4 3 0 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 87 6 6 4 7 2 2 8 7 3 . 6 J 4 5 5 1 0 0 U 5 4 . 3 J 3 3 1 1 0 0 U 1 0 0 U 0. 6 2 0 . 3 5 J 0 . 5 U 0 . 5 U 1 . 1 0 . 5 U 0 . 5 U 2 . 1 0 . 7 0 . 5 U 1. 1 0. 3 2 J 0 . 5 U 0 . 5 U 0 . 9 8 0 . 5 U 0 . 5 U 2.1 0.44 J 0 . 5 U 2. 6 0 . 5 5 0 . 0 7 6 J 0 . 1 U 0 . 5 5 0 . 1 U 0 . 5 1 . 4 0 . 0 4 1 J 0 . 0 5 8 J 2. 9 0 . 8 1 0 . 0 9 1 J 0 . 0 4 4 J 0 . 4 8 0 . 1 U 0 . 4 9 1 . 6 0 . 0 5 5 J 0 . 075 J 17 2 9 4 1 8 4 2 9 0 1 8 1 0 5 U 1 4 0 1 4 20 . 6 4 0 . 4 4 5 . 2 9 1 . 9 2 8 3 1 7 . 2 9 . 6 1 3 . 9 1 2 7 1 2 . 1 0. 0 3 2 J 0 . 0 2 J 0 . 1 U 0 . 3 2 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 J + 0 . 1 U 0. 1 U 0 . 0 3 8 J 0 . 1 U 0 . 5 6 0 . 0 4 2 J + 0 . 0 9 9 J + 0 . 0 4 3 J + 0 . 0 2 5 J+ 0 . 1 6 J + 0 . 0 2 2 J + 50 U 5 0 U 4 0 0 1 7 0 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 38 . 2 J 5 0 U 4 3 2 1 7 5 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 1 3 J + 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 053 J 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 1 5 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 6 8 J 0 . 0 8 U 27 7 0 0 1 7 6 0 4 6 0 0 0 1 7 7 0 0 4 7 5 0 0 5 8 8 2 6 7 0 0 2 8 0 0 0 1 9 6 0 0 7980 10 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U - - - - - - - - - - - - 32 0 0 2 0 0 0 5 7 0 0 5 2 0 0 2 7 0 0 1 4 0 0 3 4 0 0 9 5 0 0 1 2 4 0 0 3 0 0 0 22 . 3 0 . 6 3 J + 1 J + 3 . 7 J + 0 . 6 5 J + 0 . 3 8 J + 0 . 3 8 J + 4 . 4 0 . 4 6 J+ 0 . 3 4 J + 20 . 1 2. 5 J + 1 . 2 J + 4 1 . 2 J + 0 . 3 3 J + 0 . 3 5 J + 4 . 9 0 . 5 J + 0 . 3 8 J + 17 . 4 J 0 . 3 0. 0 5 4 3. 7 0. 0 1 8 J - 0 . 0 3 U 0 . 0 2 9 J 3.7 0.17 0.049 0. 4 1 0 . 6 5 0 . 5 1 0 . 2 2 J + 0 . 6 4 0 . 4 8 0 . 3 9 0 . 0 4 1 J + 0 . 2 4 0 .24 0. 1 4 J + 1. 3 0. 5 4 0 . 2 5 0 . 6 1 0 . 4 2 0 . 5 2 0 . 0 4 J + 0 . 2 2 0 . 7 9 5 0 . 4 J + 0 . 4 5 J + 1 . 6 J + 0 . 2 7 J + 1 . 8 J + 0 . 2 J + 1 . 4 J + 3 . 3 0 .58 J+ 2 0 . 7 1 0 . 7 3 J + 0 . 5 1 J + 0 . 8 1 0 . 4 4 J 0 . 3 2 J 1 . 6 8 0 . 1 7 J 17 0 5 0 U 1 7 0 5 0 U 5 0 U 5 0 U 3 6 J 5 0 U 5 0 U 5 0 U 16 3 67 0 30 0 5 9 . 8 3 5 . 5 J 5 0 U 1 1 3 5 0 U 2 6 . 2 J 5 0 U 0. 1 9 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 9 J 0 . 1 4 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0. 1 U 0 . 2 1 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 16 1 7 6 7 1 1 8 0 0 1 1 0 0 0 1 0 0 U 1 0 8 0 3 3 2 0 3 4 7 3 8 4 0 1 8 9 0 11 7 6 9 1 1 3 0 5 U 4 2 1 2 5 U 3 4 0 5 U 12 . 2 11 9 1 0 2 1 4 7 5 U 3 8 . 7 1 0 . 6 5 U 318 6.2 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 0 . 2 U 0 . 2 U 1. 8 J + 1 . 6 J + 1 . 9 J + 1 . 7 J + 3 . 8 J + 2 J + 6 . 7 J + 2 . 1 J + 2 2 . 7 1.9 J+ 4. 4 0 . 5 U 0 . 3 2 J 0 . 5 U 1 4 . 4 0 . 5 U 1 7 . 9 3 . 4 0 . 1 8 J 1 5. 6 0 . 5 U 0 . 3 1 J 0 . 5 U 1 3 0 . 5 U 1 7 . 3 3 . 3 0 . 2 3 J 0 . 8 4 5 0 . 9 8 1 . 2 J + 1 . 3 J + 0 . 6 6 0 . 7 8 1 0 . 7 6 0 . 6 5 0 . 5 U 2. 6 1 . 9 1 . 1 1 . 6 0 . 7 0 . 6 0 . 9 8 0 . 5 U 0 . 5 6 0 . 5 U 54 J + 1 1 0 J + 2 4 3 9 0 2 0 U 1 0 0 2 0 U 1 5 0 0 1 0 0 0 0 1 9 0 0 60 1 0 5 0 0 0 U 2 8 0 0 J 5 0 0 0 U 8 6 9 0 0 5 0 0 0 U 3 0 0 0 J 6 0 1 0 5 0 0 0 U 5 0 0 0 U 0. 4 3 J 0 . 5 U 0 . 5 U 1 . 6 0 . 5 5 0 . 5 U 0 . 5 U 1 . 2 0 . 5 U 0 . 5 U 0. 4 6 J 0 . 5 U 0 . 3 3 J 1 . 7 0 . 4 3 J 0 . 5 U 0 . 5 U 1 . 3 0 . 5 U 0 . 3 6 J 26 9 0 0 7 3 6 0 1 3 2 0 0 9 1 4 0 5 1 9 0 0 5 0 0 0 U 1 3 7 0 0 3 7 2 0 0 9 0 9 0 7750 16 0 2 8 4 4 0 3 1 0 2 8 0 0 8 1 5 0 5 U 1 9 0 6 2 20 7 3 3 . 3 4 6 9 3 0 7 3 0 2 0 8 1 6 6 1 9 2 2 0 1 7 0 . 3 34 3 0 0 1 2 0 0 0 1 2 9 0 0 0 9 7 6 0 0 3 1 7 0 0 7 6 0 J 1 2 6 0 0 3 6 3 0 0 1 7 0 0 1400 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 J 1 0 0 U 1 0 0 U 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0. 1 U 0 . 0 3 5 J + 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 14 7 0 0 0 3 4 0 0 0 2 9 5 0 0 0 1 6 7 0 0 0 4 1 4 0 0 0 2 5 0 0 0 U 1 5 6 0 0 0 2 1 9 000 J+ 1 4 2 0 0 0 J + 9 0 0 0 0 J + -- - - - - - - 5 6 0 0 1 0 0 0 U 1 3 0 0 4 5 0 0 1 0 0 0 U 1 0 0 0 U 54 2 0 0 1 8 0 0 0 2 8 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 5 9 0 0 2 5 0 0 U 2 5 0 0 U -- - - - - - - 0 . 5 U 0 . 5 U 1 . 1 0 . 2 4 J 0 . 5 U 0 . 5 U 34 . 4 0 . 0 7 6 J 1 . 3 0 . 0 7 6 J 2 . 3 0 . 3 U 1 . 3 2 2 . 3 0 . 0 7 5 J 2 . 5 38 . 2 0 . 9 4 1 . 5 0. 2 J 2. 2 0. 3 U 1.2 20.7 0.097 J 2.1 3 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 ) AB - 7 D A B - 7 I A B - 8 D A B - 8 S B G - 1 D B G - 1 S B G - 2 B R B G - 2 D B G - 2 S B G - 3 D 3/ 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 01 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 N N N N N N N N N N RV - A B - 7 D R V - A B - 7 I R V - A B - 8 D R V - A B - 8 S R V - B G - 1 D R V - B G - 1 S R V - BG-2BR R V - B G - 2 D R V - B G - 2 S R V - B G - 3 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 und 5 Round 5 Round 5 2. 7 J + 8 J + 4 . 2 J 9 . 7 J 1 0 U 7 . 9 J 1 0 U 8 . 8 J 1 6 1 0 U 10 U 1 2 . 4 1 0 U 8 . 1 J 1 0 U 7 . 4 J 1 0 U 3 . 2 J 1 2 . 4 2 . 6 J 5. 7 1 . 4 0 . 4 4 . 3 0 . 2 6 . 9 0 . 3 1 . 5 6 3 . 6 9 4 . 0 7 91 . 7 2 3 4 . 2 4 2 . 5 2 9 2 . 8 - 2 0 9 . 4 1 9 1 . 1 - 7 4 . 1 8 . 6 1 7 3 . 3 167.7 10 . 7 5 . 7 6 4 . 9 1 2 . 2 5 . 5 7.8 11.14 5.97 6.55 30 5 . 6 6 2 . 1 4 3 6 . 5 2 5 9 . 2 1 4 9 2 2 0 . 8 2 1 8 . 2 4 5 2 1 6 2 . 8 9 1 .3 18 . 8 1 9 1 5 . 6 1 6 . 4 1 6 . 5 1 5 . 7 1 6 . 3 1 7 . 2 2 1 . 2 1 7 . 2 9. 8 9 . 4 8 . 3 7 . 1 2 . 5 1 3 . 5 7 . 0 7 9 . 3 9 1 . 1 6 4 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 - 3 D B G - 3 S B G - 5 B R C - 2 D C - 2 S G W A - 1 0 B R U G W A - 1 0 S G W A - 1 1 D G W A - 11S GWA-12D 3/ 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 4 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 2 / 2 5 / 2 0 1 6 2 / 2 3 / 2 0 1 6 2 / 1 9 / 2 0 1 6 FD N N N N N N N N N RV - B G - 3 D - F D R V - B G - 3 S R V - B G - 5 B R R V - C - 2 D R V - C - 2 S R V - G W A - 1 0 BR U R V - G W A - 1 0 S R V - G W A - 1 1 D R V - G W A - 1 1 S G W A - 1 2 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 und 5 Round 5 Round 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 2 7 5 0 0 0 5 0 0 0 U 5 0 0 0 U 5 0 00 U 5000 U 34 3 0 0 3 4 9 0 0 1 1 9 0 0 0 1 2 0 0 0 0 5 0 0 0 U 5 0 0 0 U 4 1 0 0 J 6 6 8 0 0 1 04000 29700 34 3 0 0 3 4 9 0 0 1 1 9 0 0 0 1 2 0 0 0 0 5 0 0 0 U 3 2 0 0 0 0 4 1 0 0 J 6 6 8 0 0 104000 29700 10 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 4 0 0 8 2 0 1 0 0 U 5 4 J 1 0 0 U 1 0 0 U 10 0 U 5 0 . 8 J 8 3 . 3 J 1 0 0 U 1 5 6 0 1 0 8 0 7 4 . 9 J 2 0 0 1 7 0 1 1 0 0. 5 U 0 . 5 U 2 . 4 0 . 3 1 J 0 . 5 U 1 . 2 J 0 . 5 U 1 0 U 0 . 5 U 0 . 3 J 0. 5 U 0 . 5 U 1. 4 0. 3 5 J 0 . 5 U 1. 5 J 0.5 U 1 0 U 0 . 5 0 . 3 5 J 0. 0 6 3 J 0 . 2 5 0 . 4 2 0 . 8 1 1 U 0 . 0 4 1 J 2 U 0 . 2 8 0 . 4 6 0. 0 6 J 0 . 3 0 . 3 7 0 . 7 4 0 . 9 6 0 . 4 J 0 . 0 5 7 J 2 U 0 . 3 2 0 . 6 1 14 3 7 1 2 9 2 4 3 3 8 0 2 8 6 5 5 4 4 4 12 . 8 3 6 1 4 5 2 7 . 4 3 5 . 4 8 4 . 9 3 1 . 1 6 6 6 2 5 0 0. 0 3 2 J 0 . 0 4 6 J + 0 . 1 U 0 . 1 U 2 1 U 0 . 1 4 1 . 3 J 0 . 1 U 0 . 1 U 0. 0 3 1 J + 0 . 0 3 J + 0 . 1 U 0 . 1 U 2 . 1 1 U 0 . 1 1 2 . 1 0 . 1 U 0 . 1 U 50 U 5 0 U 5 0 U 5 0 U 1 6 0 1 2 0 1 5 0 5 0 U 5 0 U 6 5 50 U 5 0 U 5 0 U 5 0 U 1 7 2 1 1 7 1 6 0 2 6 J 5 0 U 6 5 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 1 9 0 . 8 U 0 . 0 8 U 1 . 6 U 0 . 0 8 U 0.061 J 0. 0 8 U 0 . 0 8 2 0 . 0 8 U 0 . 0 8 U 0 . 2 0 . 8 U 0 . 0 8 U 1 . 6 U 0 . 0 8 U 0 .056 J 88 6 0 7 1 2 0 3 9 7 0 0 3 1 8 0 0 1 0 5 0 0 4 2 5 0 0 4 7 4 0 4 1 0 0 0 0 2 8 6 0 0 107000 -- - - - - 1 0 0 0 U - - 3 3 0 0 1 1 9 0 0 - - - - - - 29 0 0 2 8 0 0 1 4 5 0 0 2 5 0 0 3 1 0 0 4 6 0 0 6 3 0 0 1 9 1 0 0 6 0 0 0 3 6 0 0 0. 4 8 J + 0 . 3 2 J + 0 . 7 6 J + 1 . 5 0 . 3 4 J + 5 U 0 . 2 5 J 1 0 U 0 . 5 2 0 .53 0. 3 6 J + 0 . 5 6 J + 1 . 2 J + 1 . 6 J + 0 . 4 8 J + 5 U J 0 . 5 J + 1 0 U 3 . 4 0.48 J+ 0. 0 4 4 0 . 0 1 9 J 0. 1 7 1 . 3 0 . 1 1 J + 0. 0 3 U 0.14 0.076 J+0.03 U 0 . 0 3 U 0. 2 4 0 . 8 1 0 . 0 7 6 J 0 . 0 2 8 J 3 8 . 6 1 U 1 0 . 5 9 . 7 6 . 6 1 1 . 2 0. 2 8 0 . 7 5 0 . 0 9 J 0 . 0 2 8 J + 39 . 4 1 U 10.6 10.5 5.9 9.3 J 0. 9 6 J + 0 . 3 7 J + 0 . 5 J 0 . 3 7 J 1 0 . 7 5 U 1 . 2 1 9 . 2 2 . 6 1 . 3 0. 5 U 0 . 1 3 J 0 . 4 3 J + 0 . 6 4 J + 6 . 3 5 U 0 . 4 4 J 4 5 . 5 0 . 7 8 0 . 2 1 J+ 50 U 7 3 0 5 0 U 5 0 U 5 0 U 5 0 U 3 3 0 9 1 5 0 U 1 3 0 0 50 U 10 9 0 41 . 2 J 2 5 . 8 J 7 0 5 0 U 446 270 1300 1100 0. 0 9 3 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 6 1 U 0 . 1 U 2 U 0 . 2 9 0 . 1 3 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 7 1 U 0 . 1 U 2 U 0 . 2 9 0 . 1 U 20 1 0 9 2 0 6 6 0 0 3 9 4 0 3 9 8 0 4 4 6 5 9 4 0 1 0 4 0 0 0 1 0 8 0 0 3 5 2 0 0 5 U 4 7 0 1 0 . 4 2 . 8 J 5 0 0 5 U 2 3 0 7 6 5 U 2 3 0 0 2. 8 J 43 4 13 . 1 3 . 7 J 54 6 5 U 233 81 4800 2300 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 1 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 1. 7 J + 4 2 . 4 1 0 U 1 . 5 J + 4 . 2 J + 3 . 8 J + 1 . 6 J + 2 . 2 J + 6 1 . 4 2 .4 J+ 1. 1 0 . 1 7 J 2 . 5 0 . 5 1 0 . 5 U 1 . 9 J 0 . 5 U 3 . 4 J 1 . 4 6 . 3 0. 8 6 0 . 1 5 J 2 . 3 0 . 5 1 0 . 5 U 2 J 0 . 5 U 3 . 4 J 1 . 4 7 . 6 J 1. 6 0 . 7 9 0 . 5 U 1 . 5 2 2 . 5 5 U 1 . 3 1 0 U 3 . 8 3 9 . 2 0. 5 U 1 . 1 0 . 6 0 . 7 6 2 2 . 4 5 U 1 . 2 1 0 U 4 . 7 3 8 . 6 19 0 0 2 0 U 2 0 U 1 5 J 3 3 0 0 2 0 U 2 0 U 6 6 2 0 U 8 6 0 50 0 0 U 5 0 0 0 U 5 7 4 0 5 0 0 0 U 7 9 7 0 1 1 4 0 0 0 5 0 0 0 U 9 5 3 0 5 0 0 0 U 7 1 8 0 0. 5 U 0 . 5 U 0 . 5 2 0 . 5 U 1 2 . 2 5 U 0 . 5 U 1 0 U 0 . 5 U 2 . 7 0. 5 U 0 . 5 U 0 . 5 7 0 . 5 U 1 1 . 9 5 U 0 . 5 U 6 . 5 J 0 . 5 2 2 . 3 78 3 0 6 4 7 0 1 6 2 0 0 1 1 6 0 0 3 9 1 0 J 3 9 2 0 0 4 4 2 0 J 3 1 8 0 0 1 1 9 0 0 27400 62 6 8 7 8 2 1 8 0 4 6 0 9 2 0 5 8 1 9 0 0 4 5 0 8 0 0 73 . 6 7 2 . 9 8 9 2 2 0 4 4 9 2 9 4 0 6 2 . 5 1 8 0 0 6 0 0 8 9 0 14 0 0 1 9 0 0 2 6 4 0 0 2 2 0 0 6 0 0 0 0 2 0 4 0 0 3 4 2 0 0 1550000 75600 429000 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 0 0 U 1 0 0 U 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 6 4 J 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 6 5 J 1 U 0 . 1 U 1 J 0.1 U 0 . 1 U 83 0 0 0 J + 7 8 0 0 0 1 9 7 0 0 0 1 3 8 0 0 0 1 4 1 0 0 0 3 3 6 0 0 0 J + 7 7 0 0 0 J +3240000 317000 J+748000 10 0 0 U 1 0 0 0 U 1 0 0 0 U - - 1 0 0 0 U - - - - 1 0 0 0 U 1 1 0 0 1 0 0 0 U 26 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 5 0 0 0 U 8 3 0 0 2 7 0 0 5 0 0 0 U 2 8 4 0 0 3100 0. 5 U 0 . 5 U - - - - - - 5 U 5 U - - - - - - 2. 5 0 . 1 5 J 1 . 3 5 . 8 0 . 3 U 4 . 7 0 . 0 7 8 J 1 0 U 0 . 5 U 0 . 4 9 J 2 0. 1 7 J 1. 2 5 . 8 0. 1 6 J 5. 2 0.27 J 1 0 U 2 0.65 5 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 - 3 D B G - 3 S B G - 5 B R C - 2 D C - 2 S G W A - 1 0 B R U G W A - 1 0 S G W A - 1 1 D G W A - 11S GWA-12D 3/ 1 4 / 2 0 1 6 3 / 1 4 / 2 0 1 6 4 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 2 / 2 5 / 2 0 1 6 2 / 2 3 / 2 0 1 6 2 / 1 9 / 2 0 1 6 FD N N N N N N N N N RV - B G - 3 D - F D R V - B G - 3 S R V - B G - 5 B R R V - C - 2 D R V - C - 2 S R V - G W A - 1 0 BR U R V - G W A - 1 0 S R V - G W A - 1 1 D R V - G W A - 1 1 S G W A - 1 2 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 und 5 Round 5 Round 5 10 U 4 . 8 J 3 . 7 J + 8 . 8 J 4 9 1 0 U 1 2 1 4 1 0 1 6 10 U 5 . 1 J 1 0 . 5 J + 2 5 . 1 5 2 . 2 1 0 U 9 J 2 5 1 0 U 1 1 J + 4. 0 7 1 . 5 0 . 2 1 . 7 0 . 6 0 . 4 0 . 5 3 . 3 6 0 . 5 5 0 . 1 9 16 7 . 7 - 1 5 - 9 8 . 8 1 0 2 . 8 5 2 0 . 7 - 2 0 6 1 7 1 1 0 7 . 4 - 6 2 . 6 1 0 .1 6. 5 5 6. 1 7. 9 7 . 8 3. 9 1 1 . 8 5 . 1 6.7 6.2 6.1 91 . 3 8 0 . 8 2 0 4 . 8 2 3 8 . 3 2 2 1 . 5 1 6 8 0 1 2 0 2 3 0 6 3 3 3 . 5 8 7 9 17 . 2 1 5 . 7 1 8 . 1 2 2 . 2 1 9 . 6 1 5 1 5 1 8 . 7 1 6 . 4 1 2 . 9 1. 1 6 3 . 2 5 . 4 8 8 8 8 7 . 3 4 3 . 8 0 . 0 9 6 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 2 D G W A - 1 2 S G W A - 1 4 S G W A - 1 B R U G W A - 1 S G W A - 2 0 B R G W A - 2 0 B R GWA-20D GWA-20S GWA-21BR 2/ 1 9 / 2 0 1 6 2 / 2 6 / 2 0 1 6 3 / 1 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 16 3 / 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 4 / 2 0 1 6 FD N N N N N F D N N N GW A - 1 2 D D U P R V - G W A - 1 2 S R V - G W A - 1 4 S R V - G W A - 1 B R U R V - G W A - 1 S RV - G W A - 2 0 B R R V - G W A - 2 0 B R - F D R V - G W A - 2 0 D R V - G W A - 2 0 S R V - G W A -21BR 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 und 5 Round 5 Round 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 7 7 0 0 0 6 9 2 0 0 2 2 6 0 0 0 0 5 000 U 426000 31 0 0 0 5 0 0 0 U 5 5 0 0 6 4 8 0 0 2 8 9 0 0 1 4 1 0 0 0 5 0 0 0 U 2 3 8 0 0 0 3 4 00 J 80100 31 0 0 0 5 0 0 0 U 5 5 0 0 6 4 8 0 0 2 8 9 0 0 2 1 8 0 0 0 2 4 5 0 0 0 2 5 0 0 0 0 0 J+ 3 4 0 0 J 5 0 6 0 0 0 10 0 U 5 2 0 1 0 0 U 5 4 J 1 0 0 U 1 0 0 U 1 0 0 U 8 8 J 1 0 0 U 1 7 0 11 0 7 3 0 1 0 0 U 1 5 7 3 4 1 7 9 . 7 J 9 3 3 J 1 1 3 7 5 . 5 J 2 0 7 0. 2 8 J 0 . 1 J 0 . 4 8 J 0 . 5 U 0 . 5 U 1 3 . 7 1 4 . 3 1 0 U 0 . 2 1 J 1 . 4 J 0. 2 3 J 0 . 2 J 0 . 4 8 J 0 . 5 U 0 . 5 U 15 1 3 . 3 10 U 0 . 2 6 J 1.3 J 0. 4 9 0 . 2 4 0 . 1 1 0 . 2 7 0 . 0 5 J 1 U 1 U 2 U 0 . 0 4 8 J 1 U 0. 3 6 0 . 2 4 0 . 1 2 0 . 2 2 0 . 0 6 2 J 1 U 0 . 4 5 J 2 U 0 . 0 8 9 J 1 U 45 1 2 0 1 2 3 . 5 J 3 0 1 8 0 1 7 0 2 5 0 1 3 3 1 0 50 1 4 0 1 5 4 . 5 J 3 5 . 5 1 9 9 J 1 5 1 J 2 9 8 1 5 . 3 3 6 5 0. 1 U 3 . 7 0 . 1 8 0 . 1 U 0 . 1 U 1 U 1 U 2 U 0 . 0 2 8 J 1 U 0. 1 U 5. 5 0. 1 3 J + 0 . 1 U 0 . 1 U 1 U 0 . 4 J 2 U 0 . 0 2 8 J 1 U 64 8 7 5 0 U 5 0 U 4 6 J 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 62 9 3 5 0 U 5 0 U 5 3 . 2 5 0 U 4 7 9 5 0 U 5 0 U 5 0 U 0. 0 5 3 J 0 . 7 3 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 1 . 6 U 0 . 0 8 U 0.8 U 0. 0 7 2 J 0 . 9 3 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 1 . 6 U 0 . 0 8 U 0.8 U 11 1 0 0 0 5 4 0 0 0 1 3 1 0 1 8 3 0 0 5 7 0 0 3 9 2 0 0 4 0 9 0 0 7 3 3 0 0 0 1 0 9 0 83000 J- -- - - - - 7 9 0 0 - - 7 0 0 J 7 7 0 J 1 5 0 0 0 1 0 0 0 U 7 8 0 0 37 0 0 2 6 0 0 2 8 0 0 2 2 0 0 5 6 0 0 2 9 0 0 2 9 0 0 1 4 3 0 0 9 1 0 0 4 1 0 0 0. 5 3 3 . 9 0 . 1 4 J + 0 . 2 2 J + 4 . 6 1 2 . 9 1 3 . 2 1 4 4 0 . 5 8 J + 1 . 4 J+ 0. 6 4 J + 7 . 9 0 . 3 6 J + 0 . 4 7 J + 4 . 2 41 . 4 3 9 . 6 1 6 0 0.48 J+ 6 . 9 0. 0 3 U 3. 9 0. 0 3 U 3 U J 2. 4 1 2 . 4 J 1 0 . 8 J 0 . 2 9 0.014 J 0.34 11 . 2 4 9 . 4 2 0 . 0 9 7 J + 0 . 2 6 1 U 1 U 0 . 3 2 J 1 . 3 0 . 1 4 J 11 . 5 J 5 0 . 5 2 0. 1 7 0 . 2 8 0 . 8 2 J + 0 . 8 1 J + 0 . 6 4 J 1.3 0.22 J 0. 6 5 8 . 2 1 1 . 6 1 J + 1 . 3 1 . 1 J + 5 U 6 . 5 J 2 . 7 5 U 0. 4 9 J + 9 . 5 1 3 . 2 4 . 1 1 . 5 2 J + 2 . 8 J + 5 . 3 J 1 . 1 1 . 2 J 13 0 0 1 3 0 5 0 U 5 0 5 1 1 9 0 5 0 U 5 0 U 5 0 U 5 0 U 13 0 0 3 8 0 45 J 1 3 5 34 3 14 1 J 534 J 50 U 9 3 . 9 7 2 . 5 0. 1 U 0 . 2 2 0 . 1 U 0 . 1 U 0 . 1 U 1 U 1 U 4 . 8 0 . 1 U 1 U 0. 1 U 0 . 1 2 0 . 1 U 0 . 0 9 7 J 0 . 1 U 2 . 3 2 . 6 4 0 . 1 U 1 U 35 3 0 0 1 9 3 0 0 3 9 8 3 3 9 0 2 9 5 0 1 5 8 1 8 5 1 0 0 U 1 1 1 0 1 1 1 23 0 0 3 4 0 0 9 1 2 0 4 . 8 J 5 U 5 U 5 U 4 8 5 U 23 0 0 3 6 0 0 8 4 28 . 9 1 4 . 4 5 U 2 3 . 9 5 U 53.2 3.7 J 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 0 . 2 U 0 . 2 U 2. 3 J + 7 . 2 J + 2 J + 1 . 9 J + 1 . 5 J + 4 . 3 J + 3 . 6 J + 5 . 3 J + 1 . 6 J + 2 4 6. 3 0 . 2 3 J 0 . 5 U 7 . 6 0 . 1 4 J 1 3 1 3 . 4 7 2 0 . 5 U 7 . 1 5 J 0 . 2 1 J 0 . 5 U 8 . 2 0 . 1 3 J 1 4 . 2 1 2 . 9 6 8 . 9 0 . 5 U 6 . 5 38 . 8 8 4 . 2 1 . 3 0 . 5 U 1 . 7 5 U 5 U 1 0 U 1 . 4 5 U 40 . 2 8 9 1 . 3 0 . 4 9 J 1 . 6 1 9 . 1 J + 1 8 . 2 J + 1 5 . 9 1 . 4 5 U 78 0 5 5 0 2 0 U 2 0 U 1 4 0 2 0 U 2 0 U 2 0 U 2 0 U 2 0 U 72 2 0 4 6 3 0 J 5 0 0 0 U 2 8 2 0 J 5 0 0 0 U 8 0 2 0 0 7 9 8 0 0 5 8 0 0 0 0 5 0 0 0 U 7 0 2 0 0 J - 2. 5 4 . 1 0 . 5 U 0 . 5 U 0 . 5 U 5 U 5 U 1 0 U 0 . 5 U 5 U 2. 6 4 . 4 0 . 5 U 0 . 5 U 0 . 5 U 5 U 5 U 8 . 6 J 0 . 5 U 5 U 23 4 0 0 1 1 4 0 0 3 0 2 0 J 6 3 8 0 5 1 3 0 3 1 2 0 0 3 1 1 0 0 1 5 5 0 0 0 4 2 3 0 J 8 7 9 0 0 J - 80 0 9 8 0 1 1 8 0 6 5 1 7 0 0 1 5 0 0 7 5 0 0 J - 1 2 1 9 0 0 89 0 1 2 0 0 1 2 8 6 . 4 7 2 . 2 1 8 4 0 J 6 0 7 J 9 1 5 0 1 2 . 6 2 2 5 0 42 7 0 0 0 23 9 0 0 0 2 1 0 0 J + 1 1 0 0 0 1 4 0 0 1 9 9 0 0 1 9 9 0 0 9 9 0 0 7 8 0 J 9 3 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 1 0 0 U 1 0 0 U 0. 1 U 0 . 0 1 5 J 0 . 0 2 3 J 0 . 1 U 0 . 1 U 1 U 1 U 2 . 6 0 . 1 U 1 U 0. 1 U 0 . 0 1 8 J 0 . 1 U 0 . 1 U 0 . 1 U 1 U 1 U 2.4 0.1 U 1 U 75 9 0 0 0 38 5 0 0 0 3 9 0 0 0 J + 1 1 6 0 0 0 7 4 0 0 0 2 6 1 0 0 0 2 6 3 0 0 0 3120000 32000 1340000 10 0 0 U 5 9 0 J 3 9 0 0 0 - - 1 0 0 0 U - - - - - - - - - - 26 0 0 3 2 0 0 2 5 0 0 U 3 4 0 0 7 1 0 0 1 4 5 0 0 J 2 5 0 0 0 0 J 1 0 1 0 0 5 0 0 0 U 1 0 0 0 0 -- - - - - 0 . 4 1 J 0 . 1 6 J - - - - - - - - - - 0. 4 6 J 0 . 1 7 J 0 . 3 U 1 . 1 1 . 7 3 . 6 4 6 U 0 . 3 U 3 J 0. 5 5 0 . 7 3 0. 0 9 1 J 1 2 . 2 4 . 2 J + 4 J + 6 U 0 . 1 9 J 2.7 J 7 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 2 D G W A - 1 2 S G W A - 1 4 S G W A - 1 B R U G W A - 1 S G W A - 2 0 B R G W A - 2 0 B R GWA-20D GWA-20S GWA-21BR 2/ 1 9 / 2 0 1 6 2 / 2 6 / 2 0 1 6 3 / 1 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 16 3 / 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 4 / 2 0 1 6 FD N N N N N F D N N N GW A - 1 2 D D U P R V - G W A - 1 2 S R V - G W A - 1 4 S R V - G W A - 1 B R U R V - G W A - 1 S RV - G W A - 2 0 B R R V - G W A - 2 0 B R - F D R V - G W A - 2 0 D R V - G W A - 2 0 S R V - G W A -21BR 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 und 5 Round 5 Round 5 32 1 1 0 2 3 1 0 U 1 1 1 0 U 3 . 1 J 4 7 1 1 8 . 5 J 13 J + 1 3 0 3 3 1 2 . 5 1 6 . 1 9 . 1 J 1 6 . 6 J 3 8 . 8 1 3 . 9 J + 1 6 . 2 0. 1 9 4 . 3 9 7 . 5 1 . 1 4 . 1 2 . 0 8 2 . 0 8 3 . 5 6 . 6 4 0 . 8 10 . 1 1 3 9 . 9 1 7 7 . 3 - 8 5 . 1 1 8 8 . 7 1 4 . 9 1 4 . 9 - 1 0 8 . 1 2 6 6 . 3 -105.5 6. 1 5 5 . 8 8. 5 5. 8 1 0 . 5 1 0 . 5 1 2 . 8 5 . 1 1 3 87 9 4 8 9 . 3 2 7 . 6 1 6 8 . 9 8 8 . 7 1 0 1 1 1 0 1 1 1 1 7 3 8 3 3 . 7 1 7 0 0 12 . 9 1 3 . 1 1 6 . 6 1 8 . 6 2 0 . 7 2 0 2 0 1 8 . 5 1 5 . 1 1 6 . 8 0. 0 9 8 . 3 3 1 . 9 5 . 8 9 . 5 1 0 1 0 8 . 4 2 7 . 1 3 . 8 8 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 - 2 1 D G W A - 2 1 S G W A - 2 2 B R - A G W A - 2 2 D G W A - 2 2 S G W A - 2 3 B R G W A - 2 3D G W A - 2 3 D G W A - 2 3 S G W A - 2 3 S 3/ 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N F D N F D RV - G W A - 2 1 D R V - G W A - 2 1 S R V - G W A - 2 2 B R R V - G W A - 2 2 D R V - G W A - 2 2 S RV - G W A - 2 3 B R R V - G W A - 2 3 D R V - F D - G W A - 2 3 D R V - G W A - 2 3 S R V - F D - G WA-23S 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 und 5 Round 5 Round 5 50 0 0 U 5 0 0 0 U 5 4 0 0 5 0 0 0 U 5 0 0 0 U 4 8 0 0 0 0 9 5 9 0 0 1 0 1 0 0 0 5 0 00 U 5000 U 78 0 0 0 5 0 0 0 U 5 3 0 0 0 3 3 9 0 0 2 2 0 0 J 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 8 0 0 J 7900 J 78 0 0 0 5 0 0 0 U 5 8 4 0 0 3 3 9 0 0 2 2 0 0 J 5 4 4 0 0 0 1 1 5 0 0 0 1 1 9 0 0 0 5800 J 7900 J 46 0 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 4 0 2 8 0 2 8 0 6 0 J 5 8 J 92 1 0 6 4 . 2 J 1 0 6 4 3 0 5 1 . 4 J 2 1 3 3 3 7 3 4 1 7 8 . 4 J 6 7 . 8 J 0. 1 2 J 0 . 1 J 0 . 6 3 0 . 5 U 0 . 5 U 2 . 1 J 0 . 5 4 0 . 5 4 0 . 1 1 J 0 . 1 1 J 0. 3 9 J 0 . 1 1 J 0 . 7 0 . 1 6 J 0 . 5 U 2 J 0.57 0.56 0.5 U 0 . 5 U 0. 2 2 0 . 1 U 1 . 2 0 . 0 8 9 J 0 . 1 7 1 U 0 . 7 0 . 7 0 . 0 6 2 J 0 . 0 5 3 J 0. 3 5 0 . 1 U 1 . 3 0 . 1 1 0 . 1 7 1 U 0 . 7 7 0 . 7 4 0 . 0 6 1 J 0 . 0 6 3 J 9. 7 5 5 4 . 4 J 2 0 2 9 2 3 0 4 1 4 1 3 6 3 6 34 . 4 6 5 . 8 5 . 6 3 0 . 4 3 3 . 8 2 3 7 4 4 . 8 4 6 3 8 . 6 3 9 . 3 0. 0 4 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 0 . 1 U 0 . 0 3 2 J 0 . 0 2 4 J 0. 0 4 J 0 . 1 U 0 . 1 U 0 . 0 5 5 J 0 . 0 1 3 J + 0 . 2 8 J 0 . 1 U 0 . 1 U 0 . 0 6 5 J 0 . 0 2 J 50 U 5 0 U 4 2 J 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 50 U 5 0 U 4 6 . 4 J 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 0. 0 8 U 0 . 0 8 U 0 . 0 6 7 J 0 . 0 8 U 0 . 0 5 3 J 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 08 U 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 1 4 J + 0 . 0 8 U 0 . 0 5 4 J 0 . 8 U 0 . 0 8 U 0 . 0 8 U 0 . 08 U 0 . 0 8 U 18 2 0 0 3 6 4 1 8 0 0 0 6 2 2 0 5 7 8 1 5 3 0 0 0 3 1 9 0 0 3 1 8 0 0 1 0 7 0 J + 1810 J+ 23 0 0 1 0 0 0 U 1 4 0 0 5 4 0 0 1 0 0 0 U 2 2 0 0 2 2 0 0 2 2 0 0 1 0 0 0 U 1 0 0 0 U 30 0 0 2 2 0 0 4 9 0 0 - - 3 3 0 0 2 4 0 0 2 3 0 0 2 3 0 0 2 4 0 0 2 5 0 0 28 . 4 0 . 6 6 J + 5 1 2 . 1 0 . 1 9 J 0 . 9 7 J 7 . 6 7 . 3 0 . 3 4 J + 0 . 2 6 J+ 29 . 1 2. 8 J + 12 . 5 1 9 . 6 0. 5 1 J + 11 . 1 2 3 . 7 2 2 . 5 0.4 J+ 0 . 3 4 J + 0. 2 1 0 . 0 7 2 J + 3 . 5 3 . 8 0. 0 1 7 J 2. 4 0.053 0.05 0.013 J 0 . 0 3 U 0. 5 6 1 . 6 0 . 0 4 8 J 0 . 2 4 0 . 8 8 0 . 1 2 J 0 . 0 5 6 J 0 . 0 5 9 J 4 . 2 4 .2 5. 3 1 . 7 0. 2 2 0 . 5 4 0 . 8 9 0 . 4 2 J 0 . 1 8 0 . 1 5 4.1 4.5 1. 6 1 . 2 0 . 1 9 J 0 . 3 4 J 3 5 U 1 . 4 J 0 . 9 4 J 2 . 1 2 . 3 27 . 4 0 . 4 8 J 0 . 9 4 1 . 1 0 . 3 9 J + 5 . 3 2 . 2 2 . 3 1 . 3 J + 1 . 3 J + 19 0 5 0 U 5 0 U 2 7 J 5 0 U 5 0 U 5 0 U 5 0 U 4 5 0 4 3 0 59 3 0 J + 75 7 4 . 9 2 5 9 2 6 . 4 J 7 8 . 2 3 8 . 2 J 3 3 . 7 J 2 2 8 J 634 J 0. 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 1 0. 4 0 . 1 U 0 . 1 J + 0 . 1 4 0 . 1 1 U 0 . 1 U 0 . 1 3 J + 0 . 1 U 0 . 1 U 29 7 0 1 5 1 1 4 2 0 5 7 6 4 1 5 1 1 1 1 4 3 1 3 6 4 4 3 4 4 4 17 1 7 0 5 U 3 . 3 J 2 9 5 U 5 U 5 U 1 3 0 1 2 0 14 0 1 9 8 5 U 1 3 . 7 3 3 . 8 5 U 5 U 5 U 111 147 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 0 . 2 U 0 . 2 U 1. 9 J + 1 . 6 J + 1 . 6 J + 1 . 6 J + 1 . 5 J + 2 . 2 J + 1 . 9 J + 1 . 8 J + 1 1 6 J 1 6 6 J 12 . 7 0 . 5 U 1 2 2 3 . 3 0 . 5 U 5 . 1 1 . 8 1 . 8 0 . 5 U 0 . 5 U 9. 3 0 . 1 1 J 1 3 7 3 . 8 0 . 5 U 4 . 9 J 2 2 0 . 5 U 0 . 5 U 12 2 . 9 1 . 6 7 . 6 0 . 7 1 5 U 0 . 8 2 0 . 7 6 3 . 3 3 . 5 12 . 8 4 . 8 4 . 3 1 2 . 7 0 . 4 7 J 5 . 8 2 . 5 2 . 2 3 . 7 3 . 5 20 U 1 1 0 0 2 0 U 6 8 2 8 2 0 U 2 0 U 2 0 U 4 1 0 4 0 0 13 8 0 0 5 0 0 0 U 2 8 3 0 J 5 0 0 0 U 5 0 0 0 U 7 2 9 0 0 1 3 1 0 0 1 3 0 0 0 5 0 0 0 U 5 0 0 0 U 0. 5 U 0 . 5 U 1 . 4 0 . 5 U 0 . 5 U 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 1. 6 0 . 5 U 1 . 7 0 . 5 U 0 . 5 U 5 U 0 . 3 6 J 0 . 5 U 0 . 5 U 0 . 5 U 13 9 0 0 2 5 3 0 J 1 9 5 0 0 8 8 0 0 5 0 0 0 U 3 6 8 0 0 1 5 1 0 0 1 5 0 0 0 5 0 0 0 U 5 0 0 0 U 12 0 5 U 1 0 0 9 0 9 . 5 1 5 0 0 4 0 0 3 9 0 2 6 2 5 33 6 2 . 9 J 1 1 7 1 0 8 1 0 . 3 1 6 6 0 4 2 8 4 3 9 1 4 . 9 J + 3 0 J + 18 8 0 0 1 0 0 0 U 3 2 6 0 0 - - 1 0 0 0 U 8 4 0 0 7 3 0 0 7 3 0 0 7 9 0 J 8 3 0 J 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 0 0 U 1 0 0 U 0. 1 U 0 . 0 3 2 J 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0. 1 U 0 . 0 4 1 J 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 11 7 0 0 0 2 5 0 0 0 U 1 2 0 0 0 0 9 2 0 0 0 2 5 0 0 0 U 2 5 0 0 0 0 U 1 4 1 0 0 0 1 6 3000 25000 U 2 5 0 0 0 U -- - - - - - - - - - - - - - - - - - - 59 8 0 0 0 6 1 0 0 3 1 0 0 9 8 0 0 5 8 0 0 1 4 5 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2500 U -- - - - - - - - - - - - - - - - - - - 9. 2 0 . 1 1 J 7 3 . 6 0 . 3 U 3 . 4 1 9 . 2 1 9 . 3 0 . 3 U 0 . 3 U 20 . 5 0. 1 8 J 8 3 . 9 0. 0 9 7 J 3. 5 2 1 2 0 . 9 0.3 U 0 . 3 U 9 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 - 2 1 D G W A - 2 1 S G W A - 2 2 B R - A G W A - 2 2 D G W A - 2 2 S G W A - 2 3 B R G W A - 2 3D G W A - 2 3 D G W A - 2 3 S G W A - 2 3 S 3/ 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N F D N F D RV - G W A - 2 1 D R V - G W A - 2 1 S R V - G W A - 2 2 B R R V - G W A - 2 2 D R V - G W A - 2 2 S RV - G W A - 2 3 B R R V - G W A - 2 3 D R V - F D - G W A - 2 3 D R V - G W A - 2 3 S R V - F D - G WA-23S 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 und 5 Round 5 Round 5 7. 9 J 2 5 1 0 U 7 . 5 J 7 . 7 J 1 0 U 1 0 U 1 0 U 2 9 3 0 17 . 6 2 7 . 6 5 . 4 J 1 9 . 8 4 . 5 J 1 0 . 4 9 J 1 5 . 7 J 2 5 J + 3 3 . 3 J 0. 9 2 . 7 1 . 5 7 . 6 3 6 . 3 0 . 4 0 . 3 0 . 3 2 . 4 2 . 4 59 . 3 3 2 6 . 1 4 3 . 5 7 7 . 6 3 3 4 . 9 - 1 7 8 . 4 - 9 9 . 4 - 9 9 . 4 1 8 3 . 6 183.6 10 . 7 4 . 7 9 . 6 8. 1 5. 3 1 2 . 2 1 1 . 2 1 1 . 2 5 5 14 9 . 8 2 0 . 1 1 9 9 . 4 6 0 . 3 2 2 2 4 8 5 3 8 8 . 6 3 8 8 . 6 3 2 . 3 3 2 . 3 17 . 6 2 1 . 2 1 9 2 0 . 4 1 9 . 1 2 0 . 5 1 9 . 2 1 9 . 2 1 3 . 6 1 3 . 6 8. 1 9 . 7 7 . 6 6 8 . 2 9 . 8 9 . 3 9 . 3 2 . 1 2 . 1 10 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 - 2 B R G W A - 2 B R U G W A - 2 S G W A - 3 D G W A - 3 S - A G W A - 4 B R G W A - 4 D G W A -4S GWA-4S GWA-5D 3/ 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 N N N N N N N N F D N RV - G W A - 2 B R R V - G W A - 2 B R U R V - G W A - 2 S R V - G W A - 3 D R V - G W A - 3 S - A R V- G W A - 4 B R R V - G W A - 4 D R V - G W A - 4 S R V - G W A - 4 S - F D R V - G W A - 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 und 5 Round 5 Round 5 50 0 0 U - - 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 3 2 4 0 0 0 1 5 6 0 0 0 5 0 0 0 U 5 0 0 0 U 17900 71 4 0 0 - - 2 8 6 0 0 8 8 1 0 0 3 1 3 0 0 1 2 6 0 0 0 5 0 0 0 U 6 0 0 0 6 2 0 0 4 9 400 71 4 0 0 - - 2 8 6 0 0 8 8 1 0 0 3 1 3 0 0 4 5 0 0 0 0 1 8 3 0 0 0 6 0 0 0 6 2 0 0 6 7200 10 0 U 2 6 0 0 1 0 0 U 6 7 J 6 3 J 5 5 0 3 1 0 1 5 0 1 5 0 1 9 0 69 J + 3 0 3 0 6 7 8 J + 7 2 J 1 2 3 6 4 2 4 4 6 1 7 7 1 6 5 1 7 4 0 J + 0. 2 8 J 2 3 0 . 5 U 1 0 U 1 0 U 4 . 2 J 5 U 5 U 5 U 0 . 5 U 0. 3 J 23 . 1 0. 5 U 1 0 U 1 0 U 4. 8 J 5 U 5 U 5 U 0 . 5 U 0. 9 3 1 U 0 . 1 U 2 U 2 U 1 U 4 . 5 0 . 7 4 J 0 . 7 3 J 0 . 7 2 1. 1 1 U 0 . 0 5 3 J 2 U 2 U 1 U 5 . 6 0 . 8 2 J 0 . 7 8 J 0 . 7 6 9. 6 7 0 4 1 3 3 2 6 6 7 7 . 9 1 9 1 9 7 . 1 11 . 2 8 2 4 6 . 6 4 2 . 2 2 9 . 8 7 4 . 7 6 . 5 2 2 . 2 2 1 . 3 2 4 . 9 0. 1 U 1 U 0 . 1 U 2 U 2 U 1 U 1 U 4 . 2 J 2 . 6 J 0 . 1 U 0. 1 U 1 U 0 . 1 U 2 U 2 U 1 U 1 U 2 . 9 2 . 9 0 . 1 U 50 U 5 0 U 4 4 0 3 4 J 5 0 U 5 0 U 5 0 U 3 7 J 3 6 J 5 0 U 50 U 5 0 U 4 3 4 4 1 . 5 J 3 0 . 3 J 5 0 U 2 6 . 6 J 4 0 . 4 J 4 0 J 5 0 U 0. 0 8 U 0 . 8 U 0 . 0 8 U 1 . 6 U 1 . 6 U 0 . 5 2 J 0 . 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 0. 0 8 U 0 . 8 U 0 . 0 8 U 1 . 6 U 1 . 6 U 0 . 8 U 0 . 8 U 0 . 8 U 0 . 8 U 0 . 0 8 U 32 3 0 0 9 6 8 0 0 1 2 5 0 0 4 4 0 0 0 0 4 0 7 0 0 0 1 5 2 0 0 0 1 6 0 0 0 6 7 8 0 0 66300 23400 10 0 0 U 6 7 0 0 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 1 0 0 1 6 0 0 3 5 0 0 3 4 0 0 1 0 00 U 51 0 0 - - 5 8 0 0 6 2 0 0 5 9 0 0 3 3 0 0 3 6 0 0 1 1 3 0 0 1 1 0 0 0 2 3 0 0 0. 6 J + 2 5 . 3 1 . 2 J + 1 0 U J 1 0 U J 1 4 . 9 5 U 5 U 1 . 2 J 6 . 6 3. 3 J + 27 1. 8 J + 1 0 U 1 0 U 15 . 4 0.92 J+ 5 U 0 . 9 J + 8 . 6 0. 0 7 9 -- 0. 8 8 0. 0 3 U 0 . 0 3 U 15 . 6 J 0 . 0 9 2 0 . 1 8 0 . 2 4 4 . 8 J + 0. 0 5 1 J 1 U 0 . 0 1 5 J 1 . 5 J 6 . 7 1 U 1 U 5 1 4 8 . 4 0 . 2 9 0. 0 8 8 J + 0 . 1 1 J 0 . 5 3 1. 6 J 5 . 9 1 U 1 U 49.8 48.8 1.9 0. 2 4 J 5 . 8 8 . 4 1 0 U J 1 0 U J 3 . 4 J 5 U 9 . 6 J 5 . 2 J 1 . 3 0. 4 8 J + 6 . 8 1 . 1 J + 1 0 U 1 0 U 2 J 5 U 3 . 2 J 3 . 1 J 5 . 4 50 U 5 0 U 5 0 U 2 1 0 1 6 0 0 5 0 U 5 0 U 5 0 U 5 0 U 8 2 57 . 1 4 0 . 8 J 68 2 29 4 20 2 0 50 U 6 8 . 2 5 0 U 5 0 U 1530 0. 1 U 1 U 1 2 U 2 U 1 U 1 U 1 U 1 U 0 . 1 U 0. 1 U 1 U 0 . 1 U 2 U 2 U 1 U 1 U 1 U 1 U 0 . 4 8 55 5 0 1 0 0 U 6 9 1 0 1 4 3 0 0 0 1 5 2 0 0 0 1 0 0 U 1 9 2 4 3 0 0 0 4 2 2 0 0 1 070 20 5 U 1 2 1 3 4 0 0 1 2 7 0 0 5 U 5 U 7 3 0 7 2 0 8 22 . 7 5 U 4 4 . 3 11 8 0 0 1 2 7 0 0 5 U 5 U 795 767 105 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 0 . 2 U 0 . 2 U 2. 7 J + 2 . 4 J + 1 . 7 J + 1 . 6 J + 1 . 6 J + 2 . 5 J + 2 . 3 J + 1 . 6 J + 1 . 6 J+ 1 . 8 J 5. 9 3 2 . 3 0 . 5 U 1 0 U 1 0 U 8 . 7 2 2 . 3 5 U 5 U 2 6. 3 3 3 . 1 0 . 5 U 1 0 U 1 0 U 9 . 2 2 8 . 3 5 U 5 U 1 . 7 0. 8 8 5 U 0 . 5 U 5 7 . 8 7 3 5 U 5 U 4 3 . 9 3 9 . 9 0 . 5 9 1. 8 5 U 0 . 7 9 4 8 . 5 7 3 . 7 5 U 5 U 4 1 . 7 4 0 . 9 2 . 5 20 U 6 3 3 7 0 2 0 U 2 0 U 2 0 U 1 0 J 2 3 2 7 2 0 U 67 6 0 1 2 2 0 0 0 5 0 0 0 U 1 0 7 0 0 8 7 8 0 3 1 7 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 0. 3 6 J 5 U 0 . 5 U 1 0 U 1 0 U 5 U 5 U 1 5 . 9 1 6 . 9 0 . 3 1 J 0. 5 U 5 U 0 . 5 U 1 0 U 1 0 U 5 U 5 U 1 6 . 1 1 5 0 . 8 3 92 3 0 7 7 5 0 0 5 7 3 0 4 9 9 0 0 4 2 0 0 0 2 6 2 0 0 6 0 7 0 0 6 9 6 0 6 9 7 0 1 0800 14 0 9 5 0 1 7 0 1 8 0 0 1 7 0 0 6 8 0 8 7 5 2 0 5 1 0 1 3 0 16 2 1 1 3 0 1 6 7 2 0 4 0 2 0 1 0 7 5 3 7 8 . 7 6 0 2 5 6 8 1 6 0 39 6 0 0 - - 3 5 7 0 0 15 8 0 0 0 0 J 1 5 8 0 0 0 0 J 17 4 0 0 8 9 0 0 394000 389000 J 7600 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 0 0 U 1 0 0 U 0. 1 U 1 U 0 . 1 U 2 U 2 U 1 U 1 U 1 U 1 U 0 . 1 U 0. 1 U 1 U 0 . 1 U 2 U 2 U 1 U 1 U 1 U 1 U 0 . 1 U 17 4 0 0 0 - - 1 3 5 0 0 0 21 1 0 0 0 0 2 1 9 0 0 0 0 45 4 0 0 0 1 9 5 0 0 0 588000 597000 113000 -- - - - - - - - - - - - - - - - - - - 25 0 0 U - - 1 2 6 0 0 2 5 0 0 U 5 8 0 0 4 0 0 0 2 5 0 0 U 2 6 0 0 U 5 0 0 0 U 1 5 8 000 -- - - - - 1 0 U 1 0 U - - - - - - - - - - 2. 7 1 . 3 J 1 . 1 6 U 1 . 9 J 8 . 4 1 2 . 4 3 U 3 U 1 5 . 7 3. 2 1 . 3 J 3 . 9 6 U 1. 7 J 8 . 9 1 4 3 U 3 U 16.5 11 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 - 2 B R G W A - 2 B R U G W A - 2 S G W A - 3 D G W A - 3 S - A G W A - 4 B R G W A - 4 D G W A -4S GWA-4S GWA-5D 3/ 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 3 / 2 3 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 4 / 2 0 1 6 N N N N N N N N F D N RV - G W A - 2 B R R V - G W A - 2 B R U R V - G W A - 2 S R V - G W A - 3 D R V - G W A - 3 S - A R V- G W A - 4 B R R V - G W A - 4 D R V - G W A - 4 S R V - G W A - 4 S - F D R V - G W A - 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 und 5 Round 5 Round 5 10 U 1 2 7 . 7 J 6 . 7 J 6 . 2 J 1 0 U 1 0 U 5 1 4 3 1 0 U 6. 5 J + 1 2 . 9 3 . 8 J + 3 . 9 J 1 3 . 7 4 . 1 J 2 . 8 J 4 5 . 6 4 3 . 9 7 . 6 J 6. 4 - - 3 0 . 5 0 . 4 0 . 4 0 . 5 2 2 . 5 1 2 . 5 1 4 . 7 -7 4 - - 1 9 5 - 6 0 . 1 - 2 3 . 3 - 3 0 . 9 5 . 5 2 2 8 2 2 8 4 2 8. 4 - - 6 6. 6 5. 6 1 1 . 9 1 0 . 8 5 . 1 5 . 1 1 0 . 3 24 4 - - 1 6 6 2 6 7 5 2 5 6 3 2 0 0 3 4 3 7 . 2 7 5 6 7 5 6 1 4 8 18 - - 1 8 1 6 2 0 1 4 . 7 2 0 1 5 . 1 1 5 . 1 1 6 . 7 7 - - 1 1 0 . 5 3 . 1 3 . 6 1 1 . 8 3 2 2 8 3 . 9 12 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 - 6 D G W A - 6 S G W A - 7 B R G W A - 7 D G W A - 7 S G W A - 8 D G W A - 8 S G W A - 9 D G W A-9S MW-15BR 3/ 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 N N N N N N N N N N RV - G W A - 6 D R V - G W A - 6 S R V - G W A - 7 B R R V - G W A - 7 D R V - G W A - 7 S R V - G W A- 8 D R V - G W A - 8 S R V - G W A - 9 D R V - G W A - 9 S R V - M W - 1 5 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 und 5 Round 5 Round 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 5000 U 17 4 0 0 0 9 8 0 0 8 2 2 0 0 8 0 8 0 0 3 1 1 0 0 4 2 5 0 0 5 0 0 0 U 2 3 3 0 0 5 0 0 0 U 4000 J 17 4 0 0 0 9 8 0 0 8 2 2 0 0 8 0 8 0 0 3 1 1 0 0 4 2 5 0 0 5 0 0 0 U 2 3 3 0 0 5 0 0 0 U 4000 J 18 0 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 1 0 0 U 1 0 0 U 22 3 0 8 1 . 1 J 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 1 0 0 U 7 3 J 1 0 0 U 5 U 0 . 1 9 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 2 9 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 0 . 1 9 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 2 8 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 2. 2 0 . 1 8 0 . 1 1 0 . 2 9 0 . 1 0 . 0 9 7 J 0 . 1 U 0 . 0 4 5 J 0 . 0 4 6 J 0 . 1 U 2. 6 0 . 2 3 0 . 1 0 . 3 3 0 . 1 1 0 . 0 9 8 J 0 . 1 U 0 . 0 5 3 J 0 . 0 5 9 J 0 . 043 J 30 5 9 3 . 8 J 7 . 7 2 6 3 . 1 J 1 5 0 6 . 3 2 6 7 3 36 . 6 6 5 4 . 3 J 8 . 4 2 9 3 . 1 J 1 6 0 6 . 9 2 8 . 8 8 0 . 5 1 U 0 . 1 5 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 8 0 . 1 U 0 . 0 8 5 J 0 . 1 5 1 U 0 . 0 7 2 J + 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 2 8 0 . 1 U 0 . 0 2 1 J 0 . 1 4 50 U 5 0 U 5 0 U 5 0 U 5 0 U 9 8 2 1 0 2 4 0 1 5 0 2 6 0 50 U 5 0 U 5 0 U 5 0 U 5 0 U 9 3 . 3 2 3 1 2 6 8 1 5 9 2 6 8 0. 8 U 0 . 2 4 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 6 9 J 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0. 8 U 0 . 6 1 0 . 0 8 U 0 . 0 8 U 0 . 0 5 3 J 0 . 0 8 U 0 . 0 8 2 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 70 0 0 0 J - 1 3 9 0 1 8 8 0 0 1 8 8 0 0 6 2 2 0 1 1 6 0 0 1 8 0 0 1 0 2 0 0 2 0 1 0 3540 85 0 J 6 6 0 J 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U - - 30 0 0 2 1 0 0 3 1 0 0 2 9 0 0 3 8 0 0 6 0 0 0 5 4 0 0 6 3 0 0 5 7 0 0 6 6 0 0 45 . 4 1 . 6 2 . 9 2 . 5 1 . 1 2 . 1 6 . 7 0 . 3 6 J 0 . 6 9 4 . 5 55 . 1 2. 9 J + 3 . 4 3 1 . 9 J + 2 . 4 J + 6 . 9 5 . 6 0 . 6 6 J + 4 . 7 56 . 1 J 0 . 3 2 2 . 5 1 . 4 0 . 9 3 0. 0 1 7 J 9.2 J 0.04 0.26 5.5 1 U 1 3 . 3 0 . 0 2 2 J 0 . 0 9 7 J 0 . 1 2 0 . 0 9 2 J 8 0 . 2 0 . 1 4 4 7 2 . 1 0. 1 3 J + 13 . 5 0. 0 1 J + 0 . 0 5 3 J + 0 . 1 2 J + 0 . 0 8 1 J + 78.9 0.13 48.7 1.5 1. 7 J 3 . 2 0 . 4 3 J 0 . 7 5 0 . 4 3 J 0 . 2 7 J 1 9 . 3 0 . 7 2 4 . 5 2 . 5 3. 8 J 4 . 8 0 . 3 6 J + 0 . 3 1 J + 0 . 2 5 J + 0 . 2 6 J 1 5 . 1 0 . 4 8 J 0 . 8 6 0.36 J 50 U 9 9 5 0 U 4 4 J 5 0 U 5 0 U 5 0 U 5 0 U 5 0 U 9 2 11 1 1 2 1 5 0 U 3 2 . 8 J 3 2 . 6 J 7 0 5 0 U 5 4 . 4 5 0 U 8 1 . 2 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 1 0 . 1 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 1 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 80 . 9 J 7 6 3 7 1 3 0 5 8 0 0 4 3 8 0 8 8 0 0 6 1 6 0 5 7 6 0 2 6 8 0 2 9 2 0 5 U 7 8 0 5 U 2 . 6 J 3 . 7 J 1 4 6 6 0 2 1 2 6 0 0 J - 8 4 3 J 84 3 5 U 5 U 4 . 2 J 1 3 . 1 687 22.3 2630 59 0. 2 U 0 . 5 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 . 7 5 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 0 9 3 J 0 . 2 U 1. 5 J + 2 . 1 J + 1 . 5 J + 1 . 3 J + 1 . 5 J + 1 . 6 J + 1 . 4 J + 4 . 7 J + 1 . 6 J+ 1 . 5 J + 19 . 6 0 . 5 U 0 . 2 8 J 0 . 5 8 0 . 5 U 0 . 4 4 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 24 . 5 0 . 5 U 0 . 2 6 J 0 . 7 8 0 . 5 U 0 . 4 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 5 U 7 . 6 0 . 9 6 0 . 8 2 1 . 8 1 . 3 2 4 1 . 6 2 . 5 1 . 3 5 U 8 . 1 0 . 5 U 0 . 8 8 0 . 9 8 0 . 5 U 2 2 . 6 2 0 . 9 2 . 1 1 . 2 20 U 6 1 1 1 0 9 8 2 0 U 2 0 U 4 5 0 0 2 0 U 2 1 0 4 8 26 4 0 J 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 6 8 0 J 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 U 0 . 4 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 1 . 1 5 U 0 . 4 2 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 1 . 8 82 4 0 5 0 0 0 U 5 4 2 0 7 4 0 0 5 0 0 0 U 4 5 0 0 J 6 4 1 0 6 9 2 0 5 7 5 0 9 7 9 0 20 0 1 2 1 4 0 1 4 0 4 6 6 9 1 6 9 6 2 8 5 9 23 5 1 3 . 4 1 5 2 1 5 0 5 0 . 4 7 1 . 6 1 7 1 0 5 3 0 . 2 6 3 . 5 14 8 0 0 7 5 0 J 4 4 0 0 4 5 0 0 1 0 0 0 U 2 4 5 0 0 3 9 0 0 0 3 2 9 0 0 2 5 5 0 0 28600 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 0 0 U 1 0 0 U 1 U 0 . 0 3 7 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 1 U 0 . 0 2 5 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 2 4 J 0 . 1 U 0 . 1 U 0 . 1 U 18 9 0 0 0 2 5 0 0 0 U 8 4 0 0 0 1 0 3 0 0 0 3 4 0 0 0 1 2 6 0 0 0 6 0 0 0 0 5 1 0 0 0 37000 78000 -- - - - - - - - - - - - - - - - - 1 0 0 0 U 35 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 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 -- - - - - - - - - 0 . 5 U 0 . 5 U - - 0 . 5 U - - 20 . 3 0 . 3 U 1 1 1 0 . 1 0 . 4 4 4 . 1 0 . 3 U 3 0 . 3 U 0 . 1 2 J 21 0. 2 J 11 1 0 . 2 0 . 5 4 . 4 0.3 U 3.5 0.12 J 0 . 2 3 J 13 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 - 6 D G W A - 6 S G W A - 7 B R G W A - 7 D G W A - 7 S G W A - 8 D G W A - 8 S G W A - 9 D G W A-9S MW-15BR 3/ 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 N N N N N N N N N N RV - G W A - 6 D R V - G W A - 6 S R V - G W A - 7 B R R V - G W A - 7 D R V - G W A - 7 S R V - G W A- 8 D R V - G W A - 8 S R V - G W A - 9 D R V - G W A - 9 S R V - M W - 1 5 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 und 5 Round 5 Round 5 10 U 9 1 6 . 6 J 1 0 U 8 . 8 J 1 0 U 2 9 1 0 U 9 . 3 J 5 . 6 J 4. 4 J 8 6 . 7 6 . 1 J 1 0 U 6 . 2 J 4 . 9 J 2 2 . 7 2 . 6 J 6 . 8 J 1 0 . 2 2. 9 2 . 1 2 . 9 3 . 6 4 . 7 0 . 3 1 . 1 0 . 2 8 0 . 8 9 3 . 8 41 3 1 4 . 6 1 2 6 . 3 1 8 2 . 9 1 7 0 . 7 - 1 6 3 2 1 . 4 1 1 2 . 7 2 1 1 2 9 0 . 3 11 . 6 4 . 8 7. 3 8 6 8. 2 4.8 6.5 5.6 5.1 81 7 3 4 . 5 1 7 2 . 3 1 7 6 . 2 7 5 1 7 1 1 2 5 . 4 1 3 7 . 5 8 3 . 8 1 1 8 . 3 17 . 9 1 6 . 2 1 8 . 7 1 8 . 1 1 9 . 5 1 8 . 5 1 6 . 6 1 7 . 2 1 8 . 3 2 0 . 7 9. 9 9 . 6 3 . 2 1 3 . 8 3 . 5 6 1 . 8 5 2 . 9 2 . 5 5 4 . 0 6 0 . 8 14 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 5 D M W - 1 D M W - 1 S M W - 2 D M W - 2 S M W - 3 D M W - 3 S M W - 4 D M W - 4 S M W - 5 D 3/ 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N N N N RV - M W - 1 5 D R V - M W - 1 D R V - M W - 1 S R V - M W - 2 D R V - M W - 2 S R V - M W - 3 D R V -MW-3S R V - M W - 4 D R V - M W - 4 S R V - M W - 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 und 5 Round 5 Round 5 10 4 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 5 0 00 U 5000 U 81 8 0 0 1 9 2 0 0 2 0 3 0 0 3 8 9 0 0 5 0 0 0 U 5 4 8 0 0 5 6 0 0 0 1 6 1 0 0 1 2 1 00 72200 18 6 0 0 0 1 9 2 0 0 2 0 3 0 0 3 8 9 0 0 5 0 0 0 U 5 4 8 0 0 5 6 0 0 0 1 6 1 0 0 1 2 100 72200 76 J 1 0 0 U 1 0 0 U 1 0 0 U 4 3 0 1 0 0 U 1 0 0 U 1 3 0 2 5 0 1 0 0 U 40 0 1 0 0 U 1 0 0 U 5 1 . 3 J 4 5 1 1 0 0 U 1 3 5 1 8 2 1 0 6 0 1 0 0 U 5 U 0 . 5 U 0 . 5 U 0 . 5 0 . 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. 4 0. 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 1 U 0 . 0 4 4 J 0 . 3 6 0 . 1 1 0 . 3 6 0 . 0 6 2 J 0 . 1 U 0 . 1 U 0 . 4 8 0 . 0 7 4 J 1 U 0 . 0 4 8 J 0 . 3 6 1 . 2 0 . 3 6 0 . 0 5 4 J 0 . 1 U 0 . 0 4 8 J 0 . 2 8 0 . 0 8 J 48 2 5 1 8 2 0 5 5 7 . 2 2 1 5 9 2 2 2 8 66 . 8 2 8 . 4 2 1 . 1 2 2 . 7 6 2 8 . 2 7 . 4 6 3 . 6 2 8 . 8 3 0 . 7 1 U 0 . 0 6 7 J 0 . 1 U 0 . 1 U 0 . 0 7 8 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 3 8 0 . 1 U 1 U 0 . 1 U 0 . 1 U 1 U 0 . 0 4 7 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 2 1 0 . 1 U 24 0 5 7 0 2 7 0 5 0 U 2 0 0 2 5 0 2 1 0 2 5 0 3 0 0 3 9 0 21 2 6 3 6 3 1 3 5 0 U 2 3 4 2 7 9 3 2 7 2 6 2 3 2 3 4 2 6 0. 8 U 0 . 0 8 8 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 9 1 0. 8 U 0 . 1 1 0 . 0 8 U 2 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 22 6 0 0 2 4 7 0 0 1 9 9 0 6 1 5 0 9 9 1 0 1 7 0 0 0 1 6 7 0 0 1 0 5 0 0 5 8 7 0 2 3200 -- 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 1 0 0 0 U 4 3 0 0 1 0 00 U 77 0 0 6 4 0 0 8 9 0 0 2 9 0 0 6 3 0 0 6 4 0 0 6 0 0 0 5 6 0 0 6 2 0 0 6 5 0 0 2. 1 J + 0 . 6 1 0 . 3 1 J 0 . 8 7 J + 0 . 1 5 J + 1 . 8 0 . 3 3 J + 1 5 . 3 2 1. 1 J + 0 . 8 8 J + 0 . 2 4 J + 32 . 8 0. 2 J + 1 . 8 J + 0 . 2 9 J + 1 . 1 J + 4 . 3 J + 2 J + 0. 3 2 J + 0 . 4 9 0. 0 3 U 0. 5 8 J - 0. 0 4 5 1. 4 0.053 0.58 0.32 1.5 1 U 0 . 2 8 6 0 . 5 0 . 0 1 2 J 1 7 . 8 0 . 0 2 3 J 0 . 8 6 0 . 6 1 6 . 1 0 . 0 4 9 J 1 U 0 . 3 6 60 . 1 1 . 2 1 9 0. 0 5 J 0 . 7 1 0 . 6 13.1 0.049 J 5 U 1 . 6 0 . 2 5 J 1 . 2 1 7 . 9 0 . 3 8 J 0 . 3 9 J 0 . 2 4 J 4 . 1 0 . 5 2 5 U 0 . 7 5 J + 0 . 5 U J 1 1 . 1 5 . 1 0 . 1 9 J 0 . 1 8 J 0 . 1 5 J 1 0 . 1 3 J 50 U 5 0 U 2 5 3 0 0 5 0 U 5 0 U 5 0 U 5 2 1 2 0 3 0 0 5 0 U 50 U 5 0 U 29 5 0 0 87 . 8 5 0 U 3 6 . 1 J 1 3 0 2 4 7 1210 50 U 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 5 0 . 1 U 0 . 1 U 0 . 1 U 2 . 5 0 . 1 U 1 U 0 . 1 U 0 . 1 U 1 U 0 . 1 4 0 . 1 U 0 . 1 U 0 . 1 U 1 . 1 0 . 1 U 16 8 8 2 2 0 9 9 1 3 6 4 0 1 9 8 0 8 8 4 0 9 7 9 0 3 4 8 0 5 0 3 0 1 1 9 0 0 5 U 4 2 0 2 4 0 0 5 U 2 4 0 5 U 2 0 0 1 9 2 7 0 5 . 5 5 U 47 5 2 7 3 0 4. 4 J 27 1 5 U 8 . 4 1 9 . 1 253 5.9 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 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 2. 1 J + 2 . 3 J + 7 8 . 5 1 . 6 J + 1 . 6 J + 5 . 7 J + 2 J + 7 . 2 J + 1 . 8 J + 1.9 J+ 8. 5 0 . 1 6 J 0 . 1 7 J 0 . 1 2 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 2 2 J 12 . 1 0 . 1 8 J 0 . 1 2 J 1 . 6 J 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 2 1 J 5 U 6 . 6 1 . 9 1 2 . 3 0 . 5 U 0 . 5 8 1 . 1 3 . 7 0 . 7 5 U 5 0 . 5 U 2 0 . 4 2 . 2 0 . 5 U 0 . 5 U 1 . 1 1 . 9 0 . 5 U 20 U 2 0 U 2 0 U 5 4 1 9 0 6 0 2 0 U 3 3 1 1 0 1 4 0 51 4 0 0 5 0 0 0 U 5 0 0 0 U 5 0 0 0 U 5 0 4 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 U 0 . 5 U 0 . 5 U 0 . 5 U 3 . 9 0 . 5 U 0 . 5 U 0 . 5 U 2 . 6 0 . 5 U 5 U 0 . 5 U 0 . 5 U 5 U 3 . 6 0 . 5 U 0 . 5 U 0 . 5 U 1 . 3 0 . 5 U 76 7 0 0 9 3 9 0 5 9 2 0 5 3 5 0 6 6 1 0 3 9 1 0 J 3 9 1 0 J 7 2 5 0 6 8 9 0 7 9 7 0 55 0 2 6 0 2 8 7 7 2 4 0 1 6 0 1 4 0 1 6 0 5 0 2 3 0 75 0 2 9 6 3 1 . 9 7 8 . 9 2 5 3 1 8 5 1 2 0 1 7 1 5 1 . 7 2 5 5 35 3 0 0 9 3 2 0 0 1 0 0 0 1 1 0 0 5 1 7 0 0 2 6 4 0 0 2 8 3 0 0 3 1 8 0 0 2 6 8 0 0 44800 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 2 0 1 0 0 U 1 U 0 . 0 4 9 J 0 . 1 U 0 . 1 U 0 . 0 8 6 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 3 2 J 0 . 1 U 1 U 0 . 0 6 7 J 0 . 1 U 1 U 0 . 0 8 9 J 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 3 5 J 0 . 1 U 28 1 0 0 0 1 7 7 0 0 0 3 7 0 0 0 7 7 0 0 0 8 6 0 0 0 1 2 1 0 0 0 1 2 6 0 0 0 8 9 0 0 0 J+ 1 1 4 0 0 0 J + 1 7 5 0 0 0 J + 25 0 0 - - - - - - - - - - - - - - - - - - 78 0 0 2 5 0 0 U 1 7 2 0 0 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 2 5 0 0 U 7 3 0 0 3 4 5 0 0 0 2500 U -- - - - - - - - - - - 0 . 5 U - - - - - - 2. 2 J 1 . 5 0 . 3 U 3 . 2 0 . 3 U 5 . 3 0 . 4 6 1 . 1 5 . 9 7 . 9 3 J 1 . 5 0. 3 U 33 . 8 0. 3 U 5. 2 0 . 3 5 1 . 2 2 . 8 8 15 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 5 D M W - 1 D M W - 1 S M W - 2 D M W - 2 S M W - 3 D M W - 3 S M W - 4 D M W - 4 S M W - 5 D 3/ 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 N N N N N N N N N N RV - M W - 1 5 D R V - M W - 1 D R V - M W - 1 S R V - M W - 2 D R V - M W - 2 S R V - M W - 3 D R V -MW-3S R V - M W - 4 D R V - M W - 4 S R V - M W - 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 und 5 Round 5 Round 5 10 U 8 . 8 J 1 0 U 7 6 1 1 1 0 U 1 0 U 2 . 7 J 1 6 1 0 U 3. 4 J 9 . 7 J 1 0 U 6 2 . 6 5 . 1 J + 1 0 U J 1 0 U J 1 0 U 1 1 . 7 1 0 U 0. 5 0 . 2 4 0 . 0 8 3 . 1 1 4 . 8 3 0 . 3 1 3 . 9 9 0 . 2 3 . 4 0 . 4 -1 5 9 . 5 1 3 6 . 2 1 0 4 . 3 9 2 . 1 2 9 9 . 9 9 4 . 2 1 0 7 1 3 6 1 8 4 6 6 11 . 7 6. 5 6 . 7 6 . 6 4. 4 6. 8 6.1 5.8 5.8 6.7 16 1 0 2 7 0 1 6 0 . 7 6 8 1 2 2 . 4 1 3 7 . 6 1 3 8 . 3 1 3 6 1 3 7 2 6 4 20 1 7 . 3 1 5 . 2 1 7 . 6 1 7 1 5 . 1 1 4 . 6 1 4 1 4 1 5 6. 5 0 . 8 8 8 . 0 2 3 3 . 9 2 . 1 7 6 . 3 9 6 2 0 . 5 16 o f 1 8 Riverbend 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 er 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 1 0 0 2 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 7 0 0 0 2 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 IM 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 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 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 - 5 S M W - 6 D M W - 6 S M W - 7 B R M W - 7 D M W - 9 B R M W - 9 D 3/ 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 8 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 N N N N N N N RV - M W - 5 S R V - M W - 6 D R V - M W - 6 S R V - M W - 7 B R R V - M W - 7 D R V - M W - 9 B R R V-MW-9D 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 50 0 0 U 5 0 0 0 U 5 0 0 0 U 2 5 1 0 0 0 5 0 0 0 U 3 6 1 0 0 0 7 9 9 0 0 46 0 0 J 3 1 3 0 0 2 1 0 0 0 5 0 0 0 U 1 7 5 0 0 3 8 2 0 0 5 0 0 0 U 46 0 0 J 3 1 3 0 0 2 1 0 0 0 1 2 1 0 0 0 0 1 7 5 0 0 3 9 9 0 0 0 1 0 7 0 0 0 10 0 U 1 0 0 U 1 0 0 U 2 1 0 1 0 0 U 8 4 J 3 2 0 10 0 U 9 6 . 2 J 1 0 0 U 5 0 6 1 0 0 U 3 8 3 6 4 1 0. 5 U 0 . 5 U 0 . 5 U 7 . 4 J 0 . 5 U 3 . 5 J 2 . 5 0. 5 U 0 . 5 U 0 . 5 U 6. 5 J 0. 5 U 0 . 6 4 4.6 0. 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 1 U 0 . 4 0. 1 U 0 . 0 4 2 J 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 8 23 6 . 1 7 . 5 4 1 0 2 7 8 4 1 4 26 . 5 6 . 8 8 . 5 4 4 0 2 9 . 3 1 2 6 1 7 . 4 0. 0 4 2 J 0 . 1 U 0 . 1 U 2 U 0 . 1 U 1 U 0 . 1 U 0. 0 9 2 J 0 . 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 U 41 0 2 9 0 2 0 0 5 0 U 5 0 U 5 0 U 5 0 U 46 0 3 1 0 2 2 3 5 0 U 5 0 U 5 0 U 5 0 U 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 1 . 6 U 0 . 0 8 U 0 . 8 U 0 . 0 8 U 0. 0 8 U 0 . 0 8 U 0 . 0 8 U 1 . 6 U 0 . 0 8 U 0 . 0 8 U 0 . 0 8 U 88 1 1 3 2 0 0 1 0 6 0 0 4 8 3 0 0 0 2 6 2 0 1 4 5 0 0 0 4 6 2 0 0 10 0 0 U 1 0 0 0 U 1 0 0 0 U - - - - 8 2 0 J 1 0 0 0 U 74 0 0 6 6 0 0 6 7 0 0 4 6 0 0 1 4 0 0 3 4 0 0 2 6 0 0 1. 9 0 . 1 9 J 0 . 4 2 J 2 1 . 3 1 J + 5 J + 1 9 . 3 2. 1 J + 1 . 3 J + 0 . 2 9 J + 20 . 1 1. 3 J + 0 . 7 8 J + 22.8 1. 8 0. 0 5 7 0 . 0 5 3 18 . 5 J + 1 . 2 0 . 1 4 2 1 . 2 J 1. 8 0 . 0 3 7 J 0 . 2 2 2 U 0 . 1 U 1 U 0 . 0 1 9 J + 1. 8 0. 0 8 9 J 0 . 2 2 0 . 2 2 J 0 . 0 2 J 0 . 1 U 0 . 0 4 7 J 2. 2 0 . 6 5 0 . 2 3 J 3 . 5 J 0 . 3 5 J 5 U 0 . 5 1 J + 0. 2 6 J 2 0 . 5 U 2 . 2 J 0 . 3 3 J 0 . 5 U 1 . 4 50 U 5 0 U 8 2 5 0 U 5 0 U 5 0 U 5 0 U 46 . 4 J 1 0 2 1 6 1 5 0 U 5 0 U 5 0 U 8 3 . 1 0. 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 1 U 0 . 1 U 0. 1 U 0 . 0 9 8 J 1 . 4 2 U 0 . 1 U 0 . 1 U 0 . 1 U 85 0 6 3 4 0 6 2 7 0 1 0 0 U 9 4 4 3 0 1 2 5 4 24 6 . 8 4 5 5 U 5 U 5 U 5 U 23 . 5 7 . 7 4 5 . 7 5 U 5 U 5 U 3 . 1 J 0. 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0. 1 7 J 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 0 . 2 U 1. 6 J + 5 . 4 J + 2 . 8 J + 5 J + 1 . 4 J + 1 . 7 J + 1 . 9 J + 0. 5 U 0 . 1 3 J 0 . 5 U 1 1 0 . 5 U 3 . 8 J 5 . 3 0. 5 U 0 . 1 4 J 0 . 5 U 1 0 . 8 0 . 5 U 0 . 5 4 7 . 1 1. 6 0 . 6 5 0 . 5 U 1 0 U 0 . 5 U 5 U 0 . 5 U 0. 8 8 0 . 4 4 J 0 . 5 U 1 0 U 0 . 5 6 0 . 5 U 0 . 5 U 49 2 0 U 2 0 U 1 5 J 2 0 U 2 4 0 5 2 0 50 0 0 U 5 0 0 0 U 5 0 0 0 U 1 6 2 0 0 5 0 0 0 U 1 3 2 0 0 3 6 0 0 J 0. 3 3 J 0 . 5 U 0 . 5 U 1 0 U 0 . 5 U 5 U 0 . 3 2 J 0. 4 J 0 . 5 U 0 . 5 U 1 0 U 0 . 5 U 0 . 5 U 0 . 3 8 J 11 4 0 0 6 3 1 0 6 8 9 0 2 8 7 0 0 3 5 7 0 J 1 3 9 0 0 1 3 8 0 0 20 1 1 0 1 0 0 1 9 0 0 4 5 4 2 0 1 9 0 22 . 1 1 1 2 1 1 1 2 0 2 0 4 8 . 9 6 0 7 2 4 5 14 5 0 0 3 5 9 0 0 3 8 4 0 0 5 5 0 0 J + 1 0 0 0 U 1 5 7 0 0 3 7 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 0. 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 1 U 0 . 1 U 0. 1 U 0 . 1 U 0 . 1 U 2 U 0 . 1 U 0 . 1 U 0 . 1 U 60 0 0 0 J + 1 2 2 0 0 0 J + 9 6 0 0 0 J + 13 2 0 0 0 0 32 0 0 0 3 6 6 0 0 0 1 8 3 0 0 0 -- - - - - 1 4 0 0 1 0 0 0 U - - - - 25 0 0 U 4 1 0 0 2 5 0 0 U 7 1 0 0 2 5 0 0 U 1 7 1 0 0 1 2 4 0 0 -- - - - - 0 . 5 U - - 5 U 0 . 5 U 0. 0 7 6 J 3 . 3 0 . 1 9 J 6 U 0 . 1 6 J 2 . 6 J 1 7 . 7 0. 1 6 J 4 0. 2 5 J 1. 8 J 0. 1 7 J 0. 3 4 1 4 . 8 17 o f 1 8 Riverbend 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 er 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 : 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 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 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 ie 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 al 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 if 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 - 5 S M W - 6 D M W - 6 S M W - 7 B R M W - 7 D M W - 9 B R M W - 9 D 3/ 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 8 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 01 6 3 / 2 2 / 2 0 1 6 N N N N N N N RV - M W - 5 S R V - M W - 6 D R V - M W - 6 S R V - M W - 7 B R R V - M W - 7 D R V - M W - 9 B R R V-MW-9D 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 6. 9 J 3 J 1 0 U 7 . 8 J + 1 0 U 3 J 1 0 U 10 U 1 0 U 1 0 U 3 . 3 J 6 . 6 J 2 . 9 J 1 0 U 0. 6 0 . 4 0 . 3 1 . 6 2 3 . 5 1 . 8 0 . 7 24 0 1 2 2 1 0 2 - 5 . 5 2 5 4 - 8 5 . 3 - 7 0 . 7 5. 2 6 . 4 6 . 3 1 2 . 6 5 . 4 1 2 1 1 . 3 82 1 7 0 1 5 9 4 3 4 3 4 5 2 0 4 9 5 8 7 15 1 6 1 6 2 1 . 4 2 2 . 4 1 5 . 2 1 7 . 5 3. 6 2 . 4 3 . 1 9 . 9 7 0 . 8 2 . 3 7 18 o f 1 8 Riverbend 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 - 3 S A B - 4 S A B - 5 S A B - 5 S L A B - 7 S C - 1 S C - 1 S 3/ 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 4 / 2 01 6 3 / 2 4 / 2 0 1 6 N N N N N F D N RV - A B - 3 S R V - A B - 4 S R V - A B - 5 S R V - A B - 5 S L R V - A B - 7 S R V - C - 1 S D U PL I C A T E R V - C - 1 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 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 4 0 4 0 0 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 6 6 9 0 0 4 5 6 0 0 3 0 9 0 0 0 1 8 7 0 0 8 6 5 00 5 0 0 0 U 5 0 0 0 U Al k a l i n i t y , l a b N - - u g / l 6 6 9 0 0 4 5 6 0 0 3 0 9 0 0 0 5 9 0 0 0 8 6 5 0 0 5 0 0 0 U 5 0 0 0 U Al u m i n u m D - - u g / l 1 0 0 U 8 1 J 1 2 0 4 1 0 0 1 0 0 U 1 7 0 0 1 7 0 0 Al u m i n u m T - - u g / l 1 3 5 4 9 1 2 0 2 4 5 8 0 1 0 0 U 1 8 5 0 1 8 2 0 An t i m o n y D - - u g / l 0 . 5 U 0 . 8 1 1 7 . 2 2 . 6 J 0 . 7 2 0 . 5 U 0 . 5 U An t i m o n y T 1 IM A C u g / l 0 . 5 U 0 . 8 18 2 . 7 J 0. 7 1 0 . 5 U 0 . 5 U Ar s e n i c D - - u g / l 3 2 4 1 2 9 4 6 6 7 4 . 1 1 8 9 1 1 . 7 1 2 . 4 Ar s e n i c T 10 02 L u g / l 34 1 1 5 1 4 9 7 8 2 . 4 2 2 7 1 0 . 9 1 1 . 2 Ba r i u m D - - u g / l 2 4 0 1 1 0 4 0 0 7 1 1 1 0 2 0 2 0 Ba r i u m T 7 0 0 0 2 L u g / l 2 6 6 1 1 7 4 2 7 7 5 . 8 1 2 8 2 2 . 1 2 2 . 1 Be r y l l i u m D - - u g / l 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 1 . 1 1 . 4 Be r y l l i u m T 4 I M A C u g / l 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 0 . 9 1 Bo r o n D - - u g / l 2 6 0 3 9 0 1 4 0 0 1 9 0 0 1 7 0 2 4 0 2 4 0 Bo r o n T 70 0 02 L u g / l 2 8 6 4 4 4 15 4 0 2 1 6 0 19 5 2 5 7 2 5 8 Ca d m i u m D - - u g / l 0 . 0 8 U 0 . 0 8 U 0 . 8 U 0 . 8 U 0 . 3 8 0 . 1 0 . 1 3 Ca d m i u m T 2 0 2 L u g / l 0 . 0 8 U 0 . 0 7 1 J + 0 . 8 U 0 . 8 U 0 . 3 8 0 . 1 6 0 .11 Ca l c i u m T - - u g / l 3 2 0 0 0 3 1 2 0 0 1 2 4 0 0 0 6 8 9 0 0 2 4 5 0 0 4 9 5 0 0 46000 Ca r b o n N - - u g / l 1 2 3 0 0 1 0 0 0 U 1 0 0 0 U 2 6 0 0 1 0 0 0 U 2 4 0 0 2 4 0 0 Ch l o r i d e N 2 5 0 0 0 0 0 2 L u g / l 7 1 0 0 5 3 0 0 9 3 0 0 7 2 0 0 4 7 0 0 7 5 0 0 7 7 0 0 Ch r o m i u m D - - u g / l 0 . 3 6 J + 0 . 3 3 J 5 U 5 U 0 . 5 2 J + 1 . 4 J + 1 . 2 J+ Ch r o m i u m T 1 0 0 2 L u g / l 0 . 4 8 J + 0 . 9 5 J + 5 U 5 U 0 . 7 7 J + 2 . 8 1 . 1 Ch r o m i u m 6 + T 0. 0 7 DH H S u g / l 0 . 0 3 U 0 . 0 1 6 J 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0. 2 1 0.03 U Co b a l t D - - u g / l 0 . 7 1 1 3 . 9 1 1 U 2 4 . 5 1 4 0 1 4 8 Co b a l t T 1 IM A C u g / l 0 . 8 4 16 . 5 1 . 2 0. 1 1 J 24 . 1 1 3 2 1 2 8 Co p p e r D - - u g / l 0 . 2 J 0 . 7 6 1 . 1 J 5 U 0 . 2 2 J + 0 . 3 J 0 . 1 9 J Co p p e r T 1 0 0 0 0 2 L u g / l 6 . 4 0 . 8 3 2 . 1 J + 5 U 0 . 2 J 0 . 7 1 0 . 7 1 Ir o n D - - u g / l 6 2 0 0 5 0 U 5 0 U 5 0 U 2 3 0 0 6 2 4 0 0 6 3 3 0 0 Ir o n T 30 0 02 L u g / l 71 4 0 83 . 7 4 6 . 9 J 5 0 U 32 8 0 6 8 5 0 0 6 6 2 0 0 J + Le a d D - - u g / l 0 . 1 U 0 . 1 U 1 U 1 U 0 . 1 U 0 . 1 2 0 . 1 6 Le a d T 1 5 0 2 L u g / l 0 . 4 2 0 . 1 5 1 U 1 U 0 . 1 U 0 . 1 5 0 . 1 7 Ma g n e s i u m T - - u g / l 6 9 6 0 5 3 9 0 2 3 9 0 0 1 1 2 0 5 2 8 0 1 8 7 0 0 1 7 2 00 Ma n g a n e s e D - - u g / l 6 2 0 1 5 0 0 8 6 4 . 1 J 1 7 0 0 2 9 0 0 3 0 0 0 Ma n g a n e s e T 50 02 L u g / l 69 3 1 7 5 0 9 0 . 3 5. 6 18 8 0 3 1 0 0 2 9 1 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 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 Me t h a n e N - - u g / l 1 0 8 2 . 1 J + 2 . 2 J + 2 9 4 4 3 5 9 8 1 2 7 Mo l y b d e n u m D - - u g / l 2 3 . 7 3 3 . 4 2 4 5 4 7 5 1 7 . 5 0 . 5 U 0 . 5 U Mo l y b d e n u m T - - u g / l 2 4 . 5 3 2 . 3 2 6 0 5 2 7 1 8 . 3 0 . 5 U 0 . 5 U Ni c k e l D - - u g / l 0 . 4 4 J 2 . 1 5 U 5 U 2 6 . 9 6 4 . 5 6 8 . 4 Ni c k e l T 1 0 0 0 2 L u g / l 0 . 4 5 J 1 . 8 5 U 5 U 2 6 . 3 6 1 . 7 5 9 . 1 Ni t r o g e n , N O 2 p l u s N O 3 N - - u g / l 2 0 U 1 1 J 2 3 2 0 U 2 0 U 2 0 U 2 0 U Po t a s s i u m T - - u g / l 6 8 6 0 1 1 5 0 0 1 7 2 0 0 1 7 0 0 0 1 3 7 0 0 1 9 0 0 0 19000 Se l e n i u m D - - u g / l 0 . 5 U 0 . 4 3 J 5 U 5 U 0 . 5 U 2 . 4 2 . 8 Se l e n i u m T 2 0 0 2 L u g / l 0 . 5 U 0 . 6 1 5 U 5 U 0 . 5 U 2 . 7 1 . 8 So d i u m T - - u g / l 7 2 6 0 1 2 9 0 0 1 3 0 0 0 7 8 8 0 8 0 6 0 2 6 4 0 0 2 6 8 0 0 St r o n t i u m D - - u g / l 1 2 0 0 9 9 0 3 8 0 0 1 8 0 0 9 0 0 1 1 0 0 1 1 0 0 St r o n t i u m T - - u g / l 1 3 2 0 1 0 3 0 3 7 2 0 1 8 7 0 1 0 6 0 1 2 3 0 1 1 9 0 Su l f a t e N 25 0 0 0 0 02 L u g / l 6 0 3 0 0 9 0 8 0 0 1 4 3 0 0 0 1 6 5 0 0 0 3 8 4 0 0 41 5 0 0 0 J 4 1 0 0 0 0 J 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 Th a l l i u m D - - u g / l 0 . 1 U 0 . 1 9 0 . 3 7 J 1 U 0 . 9 8 0 . 5 0 . 5 7 Th a l l i u m T 0. 2 IM A C u g / l 0 . 1 U 0. 2 2 0 . 4 5 J 1 U 1 0 . 5 1 0 . 5 3 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 5 0 0 0 1 6 9 0 0 0 51 5 0 0 0 29 8 0 0 0 1 5 8 0 0 0 69 1 0 0 0 6 7 1 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 1 5 3 0 0 8 0 0 0 4 1 0 0 2 5 0 0 U 67 0 0 5 2 0 0 7 4 0 0 Va n a d i u m D - - u g / l 0 . 1 7 J 3 8 . 7 1 6 8 9 3 . 3 3 . 9 2 . 7 2 . 9 Va n a d i u m T 0. 3 IM A C u g / l 0. 5 7 3 8 1 8 3 1 0 7 4 . 3 2 . 6 2 . 3 Zi n c D - - u g / l 7 J 7 . 5 J 1 0 U 1 0 U 3 8 J + 1 3 0 1 3 0 Zi n c T 1 0 0 0 0 2 L u g / l 1 0 . 4 5 J 1 0 U 1 0 U 3 8 . 3 1 2 7 1 2 6 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 : 1 o f 2 Riverbend 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 - 3 S A B - 4 S A B - 5 S A B - 5 S L A B - 7 S C - 1 S C - 1 S 3/ 2 3 / 2 0 1 6 3 / 2 3 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 2 / 2 0 1 6 3 / 2 4 / 2 01 6 3 / 2 4 / 2 0 1 6 N N N N N F D N RV - A B - 3 S R V - A B - 4 S R V - A B - 5 S R V - A B - 5 S L R V - A B - 7 S R V - C - 1 S D U PL I C A T E R V - C - 1 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 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 : Di s s o l v e d O x y g e n N - - m g / l 3 0 . 2 7 0 . 2 0 . 2 0 . 7 0 . 3 0 . 3 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 - 1 2 0 . 1 1 1 8 . 6 8 2 . 8 - 1 6 3 . 5 3 6 . 4 1 4 6 1 4 6 pH N 6. 5 - 8 . 5 02 L S U 6 . 6 6 . 5 8 . 1 10 . 3 6 . 3 4 . 7 4 . 7 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 0 0 . 1 2 9 2 . 2 8 1 4 4 4 4 2 8 0. 9 8 0 0 8 0 0 Te m p e r a t u r e N - - D e g C 1 9 . 7 1 9 1 8 . 1 1 8 . 4 1 6 . 5 1 6 1 6 Tu r b i d i t y , f i e l d N - - N T U 8 . 6 1 9 . 9 8 7 . 1 0 . 9 6 . 9 6 6 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 ie 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 al 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 if 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 ) 2 o f 2 Riverbend 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 A s h B a s i n 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 - 2 3/ 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 N N RV - S W - 1 R V - S W - 2 Ro 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 NC D E Q 0 2 B S W Q S (C l a s s B - W a t e r Su p p l y ) 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 Al k a l i n i t y , H C O 3 N - - - - u g / l 1 4 7 0 0 1 4 7 0 0 Al k a l i n i t y , l a b N - - - - u g / l 1 4 7 0 0 1 4 7 0 0 Al u m i n u m D - - - - u g / l 1 0 0 U 1 0 0 U Al u m i n u m T - - 8 7 u g / l 3 3 0 0 7 9 J An t i m o n y D - - - - u g / l 3 2 . 9 An t i m o n y T 1 5. 6 u g / l 4. 3 3. 1 Ar s e n i c D - - 1 5 0 u g / l 3 2 . 3 3 6 Ar s e n i c T 10 10 u g / l 79 . 4 44 . 6 Ba r i u m D - - - - u g / l 1 2 0 1 2 0 Ba r i u m T 7 0 0 1 0 0 0 u g / l 2 3 0 2 0 0 Be r y l l i u m D - - 6 . 5 u g / l 0 . 1 U 0 . 1 U Be r y l l i u m T 4 - - u g / l 3 . 8 0 . 3 9 Bo r o n D - - - - u g / l 4 3 0 4 3 0 Bo r o n T 7 0 0 - - u g / l 4 7 0 5 0 U Ca d m i u m D - - 0 . 1 5 u g / l 0 . 0 5 9 J 0 . 0 6 8 J Ca d m i u m T 2 - - u g / l 0 . 5 6 J + 0 . 1 8 J + Ca l c i u m T - - - - u g / l 2 0 5 0 0 1 9 7 0 0 Ca r b o n N - - - - u g / l 3 4 0 0 1 4 0 0 Ch l o r i d e N 2 5 0 0 0 0 2 3 0 0 0 0 u g / l 4 9 0 0 4 8 0 0 Ch r o m i u m D - - 1 1 u g / l 0 . 2 J + 0 . 1 7 J + Ch r o m i u m T 1 0 - - u g / l 9 . 7 J + 1 . 4 J + Ch r o m i u m 6 + T 0 . 0 7 - - u g / l 0 . 0 5 3 J + 0 . 0 4 1 J + Co b a l t D - - - - u g / l 0 . 8 5 0 . 2 8 Co b a l t T 1 3 ug / l 14 . 3 2. 5 J + Co p p e r D - - 2 . 7 u g / l 1 . 2 J + 1 . 4 J + Co p p e r T 1 0 0 0 - - u g / l 6 9 . 5 7 J + Ir o n D - - - - u g / l 5 0 U 5 0 U Ir o n T 30 0 -- u g / l 16 0 0 14 0 Le a d D - - 0 . 5 4 u g / l 0 . 1 U 0 . 1 U Le a d T 15 -- u g / l 16 . 5 2. 1 Ma g n e s i u m T - - - - u g / l 4 0 6 0 3 8 9 0 Ma n g a n e s e D - - - - u g / l 1 2 8 Ma n g a n e s e T 5 0 - - u g / l 4 8 5 U Me r c u r y T 1 0 . 0 1 2 u g / l 0 . 0 2 2 9 0 . 0 0 1 1 6 Me t h a n e N - - - - u g / l 1 . 7 J + 1 . 7 J + Mo l y b d e n u m D - - - - u g / l 6 7 . 3 6 6 . 3 Mo l y b d e n u m T - - 1 6 0 u g / l 6 2 . 8 6 7 Ni c k e l D - - 1 6 u g / l 7 . 8 8 . 7 Ni c k e l T 1 0 0 2 5 u g / l 2 9 . 6 J + 1 1 . 5 J + 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 Po t a s s i u m T - - - - u g / l 5 1 3 0 4 9 4 0 J Se l e n i u m D - - - - u g / l 0 . 7 9 0 . 8 2 Se l e n i u m T 2 0 5 u g / l 6 . 7 1 . 4 So d i u m T - - - - u g / l 4 2 1 0 J 4 2 1 0 J St r o n t i u m D - - - - u g / l 5 0 0 5 1 0 St r o n t i u m T - - 1 4 0 0 0 u g / l 6 7 0 1 9 0 0 Su l f a t e N 2 5 0 0 0 0 2 5 0 0 0 0 u g / l 6 0 3 0 0 6 0 2 0 0 Su l f i d e N - - - - u g / l 1 0 0 U 1 0 0 U Th a l l i u m D - - - - u g / l 0 . 5 3 0 . 5 7 Th a l l i u m T 0. 2 0. 2 4 u g / l 1. 6 0. 6 9 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 5 0 0 0 0 0 u g / l 1 1 1 0 0 0 1 2 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 6 1 1 0 0 0 0 4 9 6 0 0 Va n a d i u m D - - - - u g / l 9 . 4 6 . 8 Va n a d i u m T 0. 3 -- u g / l 63 . 9 J + 12 . 1 J + Zi n c D - - 3 6 u g / l 3 . 3 J 3 . 7 J Zi n c T 1 0 0 0 - - u g / l 3 9 9 . 2 J Di s s o l v e d O x y g e n N - - - - m g / l 5 . 4 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 1 6 2 . 6 1 5 7 . 4 pH N 6 . 5 - 8 . 5 6 . 0 - 9 . 0 S U 7 6 . 7 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 0 0 . 6 2 0 6 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 : 1 o f 2 Riverbend 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 A s h B a s i n 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 - 2 3/ 2 4 / 2 0 1 6 3 / 2 4 / 2 0 1 6 N N RV - S W - 1 R V - S W - 2 Ro 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 NC D E Q 0 2 B S W Q S (C l a s s B - W a t e r Su p p l y ) 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 : Te m p e r a t u r e N - - - - D e g C 2 0 . 2 1 6 . 5 Tu r b i d i t y , f i e l d N - - - - N T U 3 3 3 . 3 6 4 . 2 45 Ex c e e d a n c e o f N C D E Q 0 2 L G r o u n d w a t e r S t a n d a r d s , I M A C , o r D H H S c r i t e r i a . 45 Ex c e e d s N C D E Q 0 2 B S t a n d a r d s f o r C l a s s B ( W a t e r S u p p ly ) C r i t e r i a . 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 ie 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 al 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 if 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 ) 2 o f 2 Riverbend Steam Station CSA Supplement 2 Ta b l e 3 - 4 : 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 A r e a s o f We t n e s s S- 2 S - 2 S - 4 S - 6 S - 7 S - 8 S - 9 4/ 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 01 6 4 / 2 0 / 2 0 1 6 N F D N N N N N RV - S - 2 R V - F D - S - 2 R V - S - 4 R V - S - 6 R V - S - 7 R V - S - 8 R V - S - 9 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 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 GW Q S , I M A C , o r DH H S NC D E Q 0 2 B S W Q S (C l a s s B - W a t e r Su p p l y ) 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 Al k a l i n i t y , H C O 3 N - - - - u g / l 5 7 8 0 0 6 2 7 0 0 2 3 1 0 0 6 3 0 0 1 9 5 00 4 0 9 0 0 2 2 7 0 0 Al k a l i n i t y , l a b N - - - - u g / l 5 7 8 0 0 6 2 7 0 0 2 3 1 0 0 6 3 0 0 1 9 5 0 0 4 0 9 0 0 2 2 7 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 1 0 0 U J 1 0 0 U 1 0 0 U 1 0 0 U Al u m i n u m T - - 8 7 u g / l 1 0 0 U 1 0 0 U 8 0 . 3 J 1 0 0 U 8 0 . 7 J 6 8 . 8 J 1 00 U An t i m o n y D - - - - u g / l 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U An t i m o n y T 1 5. 6 u g / l 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U Ar s e n i c D - - 1 5 0 u g / l 0 . 0 8 5 J 0 . 0 5 9 J 0 . 0 6 2 J 0 . 0 4 3 J 0 . 0 4 1 J 0 . 1 2 0 . 0 5 J Ar s e n i c T 10 10 u g / l 0 . 0 7 2 J 0 . 0 7 J 0 . 0 9 9 J 0 . 0 4 8 J 0 . 0 5 4 J 0 . 2 9 0 . 0 6 2 J Ba r i u m D - - - - u g / l 3 1 . 3 3 0 . 8 3 6 . 8 4 3 . 3 J - 1 9 1 5 . 1 3 0 . 8 Ba r i u m T 7 0 0 1 0 0 0 u g / l 3 2 . 4 3 3 4 1 . 2 4 6 . 4 2 1 . 1 1 7 . 8 3 3 . 3 Be r y l l i u m D - - 6 . 5 u g / l 0 . 1 U 0 . 1 U 0 . 0 2 7 J + 0 . 0 4 2 J + 0 . 1 U 0 .1 U 0 . 1 U Be r y l l i u m T 4 - - u g / l 0 . 1 U 0 . 1 U 0 . 1 U 0 . 0 2 8 J 0 . 0 2 J 0 . 0 1 4 J 0 . 1 U Bo r o n D - - - - u g / l 4 7 4 4 7 4 3 0 5 1 3 9 J - 4 9 . 6 J 5 0 U 3 2 0 Bo r o n T 7 0 0 - - u g / l 5 0 6 5 0 3 3 3 0 1 4 7 5 2 . 5 5 0 U 3 3 9 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 Ca d m i u m T 2 - - 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 0.08 U Ca l c i u m T - - - - u g / l 4 2 5 0 0 4 2 6 0 0 8 4 2 0 3 9 8 0 2 2 3 0 7 3 0 0 7 1 9 0 Ca r b o n N - - - - u g / l 1 0 0 0 U 1 0 0 0 U 5 1 0 J 6 5 0 J 6 9 0 J 1 7 0 0 1 0 0 0 U Ch l o r i d e N 2 5 0 0 0 0 2 3 0 0 0 0 u g / l 6 4 0 0 6 3 0 0 5 7 0 0 5 6 0 0 5 1 0 0 1 60 0 5 6 0 0 Ch r o m i u m D - - 1 1 u g / l 0 . 5 U 0 . 1 J 0 . 1 6 J 0 . 2 J 1 0 . 1 6 J 0 . 1 8 J Ch r o m i u m T 1 0 - - u g / l 0 . 0 9 4 J + 0 . 1 4 J + 0 . 3 J + 0 . 3 1 J + 1 . 5 J + 0. 3 2 J + 0 . 3 J + Ch r o m i u m 6 + T 0 . 0 7 - - u g / l 0 . 0 3 U 0 . 0 3 U 0 . 0 3 U 0 . 0 3 5 0. 9 0. 0 3 U 0 . 0 4 3 Co b a l t D - - - - u g / l 3 . 2 2 . 8 4 . 8 6 . 7 0 . 8 6 0 . 1 1 1 . 4 Co b a l t T 1 3 ug / l 3. 2 3. 6 6. 1 7. 5 1. 2 0. 2 9 2.3 Co p p e r D - - 2 . 7 u g / l 0 . 5 2 0 . 4 J 0 . 4 4 J 0 . 5 3 0 . 6 4 0 . 6 6 0 . 4 1 J Co p p e r T 1 0 0 0 - - u g / l 0 . 4 8 J 0 . 4 3 J 0 . 3 7 J 0 . 1 6 J 0 . 3 7 J 0 . 8 7 0 . 3 J Ir o n D - - - - u g / l 4 1 . 3 J 3 6 . 8 J 2 4 7 1 1 5 J - 4 8 . 1 J 4 1 1 3 8 . 6 J Ir o n T 30 0 -- u g / l 5 9 . 7 7 4 . 8 69 8 26 0 38 3 26 2 0 294 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 Le a d T 15 -- u g / l 0 . 1 U 0 . 1 U 0 . 1 1 0 . 1 U 0 . 1 U 0 . 1 2 0 . 1 U Ma g n e s i u m T - - - - u g / l 7 4 6 0 7 3 9 0 6 7 8 0 6 1 2 0 4 1 4 0 2 3 1 0 5 9 4 0 Ma n g a n e s e D - - - - u g / l 5 4 3 5 3 5 6 0 8 2 8 8 0 J - 1 0 7 2 5 . 4 9 1 . 9 Ma n g a n e s e T 5 0 - - u g / l 57 2 57 9 70 7 31 0 0 13 0 49 . 9 118 Me r c u r y T 1 0 . 0 1 2 u g / l 0 . 0 0 0 6 0 4 J + 0 . 0 0 0 7 3 1 J + 0 . 0 0 2 4 J + 0 . 00 0 5 2 3 J + 0 . 0 0 1 2 J + 0 . 0 0 1 7 4 J + 0 . 0 0 7 5 Me t h a n e N - - - - u g / l 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U 1 0 U Mo l y b d e n u m D - - - - u g / l 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U Mo l y b d e n u m T - - 1 6 0 u g / l 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 . 5 U 0 .5 U Ni c k e l D - - 1 6 u g / l 1 0 . 8 5 0 . 7 4 8 . 6 2 . 5 0 . 5 U 0 . 6 1 Ni c k e l T 1 0 0 2 5 u g / l 0 . 9 3 0 . 9 7 0 . 8 9 9 . 5 3 . 1 0 . 5 U 0 . 7 4 Ni t r o g e n , N O 2 p l u s N O 3 N - - - - u g / l 2 3 0 2 4 0 4 9 2 0 U 2 0 U 2 0 U 8 3 Po t a s s i u m T - - - - u g / l 4 7 0 0 J 4 6 4 0 J 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 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 2 0 5 u g / l 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 5 6 1 0 5 5 7 0 6 3 1 0 6 8 0 0 2 9 7 0 J 6 2 6 0 6 5 4 0 St r o n t i u m D - - - - u g / l 2 6 0 2 5 9 4 8 2 8 . 9 J - 1 7 . 1 6 7 . 4 3 1 . 8 St r o n t i u m T - - 1 4 0 0 0 u g / l 2 7 3 2 7 2 5 2 . 2 3 0 . 8 1 8 . 4 7 2 . 5 3 3 .3 Su l f a t e N 2 5 0 0 0 0 2 5 0 0 0 0 u g / l 8 8 4 0 0 8 8 1 0 0 3 2 5 0 0 4 0 0 0 0 2 3 0 0 J + 1 0 0 0 J + 2 8 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 Th a l l i u m D - - - - u g / l 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U 0 . 1 U Th a l l i u m T 0. 2 0. 2 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 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 5 0 0 0 0 0 u g / l 1 9 4 0 0 0 1 7 7 0 0 0 8 3 0 0 0 9 2 0 0 0 5 1 0 0 0 7 9 0 0 0 7 6 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 2 5 0 0 U 2 5 0 0 U 1 2 8 0 0 2 5 00 U 1 2 9 0 0 6 5 0 0 5 0 0 0 U Va n a d i u m D - - - - u g / l 0 . 3 U 0 . 3 U 0 . 3 U 0 . 3 U 0 . 0 7 9 J 0 . 1 9 J 0 .3 U Va n a d i u m T 0. 3 -- u g / l 0 . 3 U 0 . 0 7 9 J 0. 4 2 0. 3 U 0. 4 1. 2 0.32 Zi n c D - - 3 6 u g / l 1 0 U 4 . 1 J + 5 . 3 J + 3 . 4 J + 2 . 6 J + 1 0 U 1 0 U Zi n c T 1 0 0 0 - - u g / l 1 0 U 1 0 U 1 0 U 1 0 U 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 6 . 2 6 . 2 7 . 4 5 . 8 8 . 1 2 6 . 5 6 .4 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 1 0 0 . 7 1 0 0 . 7 6 2 . 4 8 6 . 1 6 7 . 1 8 5 . 5 7 5 . 5 pH N 6 . 5 - 8 . 5 6 . 0 - 9 . 0 S U 6 . 9 6 . 9 7 . 6 6 . 9 7 . 4 7 . 2 7 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 6 1 2 6 1 9 6 . 6 7 6 . 2 4 1 .6 5 4 . 2 7 8 . 9 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 : 1 o f 2 Riverbend Steam Station CSA Supplement 2 Ta b l e 3 - 4 : 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 A r e a s o f We t n e s s S- 2 S - 2 S - 4 S - 6 S - 7 S - 8 S - 9 4/ 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 0 1 6 4 / 2 0 / 2 01 6 4 / 2 0 / 2 0 1 6 N F D N N N N N RV - S - 2 R V - F D - S - 2 R V - S - 4 R V - S - 6 R V - S - 7 R V - S - 8 R V - S - 9 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 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 GW Q S , I M A C , o r DH H S NC D E Q 0 2 B S W Q S (C l a s s B - W a t e r Su p p l y ) 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 : Te m p e r a t u r e N - - - - D e g C 1 7 . 2 1 7 . 2 1 6 . 5 1 9 . 3 1 7 . 8 1 9 . 5 17.7 Tu r b i d i t y , f i e l d N - - - - N T U 1 . 3 1 . 3 5 . 3 2 . 9 5 . 8 1 0 . 5 6 . 9 45 Ex c e e d a n c e o f N C D E Q 0 2 L G r o u n d w a t e r S t a n d a r d s , I M A C , o r D H H S c r i t e r i a . 45 Ex c e e d s N C D E Q 0 2 B S t a n d a r d s f o r C l a s s B ( W a t e r S u p p ly ) C r i t e r i a . 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 ie 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 al 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 if 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 ) 2 o f 2 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 7/8/2015 53.11 666.20 9/15/2015 53.87 665.44 6/15/2016 55.80 663.51 7/8/2015 33.54 685.76 9/15/2015 36.14 683.16 6/15/2016 38.49 680.81 7/9/2015 40.36 678.97 9/15/2015 41.74 677.59 6/15/2016 45.58 673.75 7/9/2015 41.70 677.58 9/15/2015 38.86 680.42 6/15/2016 41.28 678.00 7/8/2015 144.14 583.67 9/15/2015 44.63 683.18 6/15/2016 28.85 698.96 7/8/2015 27.52 700.20 9/15/2015 28.64 699.08 6/15/2016 33.89 693.83 7/8/2015 21.52 706.26 9/15/2015 23.57 704.21 6/15/2016 27.26 700.52 7/9/2015 25.41 702.92 9/15/2015 27.56 700.77 ------ 7/9/2015 22.13 706.14 9/15/2015 24.49 703.78 ------ 7/9/2015 47.33 677.13 9/15/2015 48.25 676.21 6/15/2016 50.01 674.45 7/9/2015 16.98 707.50 9/15/2015 20.21 704.27 6/15/2016 22.35 702.13 7/9/2015 17.62 706.87 9/15/2015 20.64 703.85 6/15/2016 22.75 701.74 7/8/2015 64.92 663.59 9/15/2015 60.36 668.15 6/15/2016 66.46 662.05 7/8/2015 41.70 686.73 9/15/2015 43.72 684.71 6/15/2016 43.51 684.92 7/9/2015 16.20 713.48 9/15/2015 18.35 711.33 6/15/2016 18.24 711.44 7/9/2015 15.69 713.78 728.51 AB-6S 728.43 AB-7D 729.68 AB-5D 724.46 AB-5S 724.48 AB-5SL 724.49 727.72 AB-1D AB-1S AB-2D AB-2S AB-3BR AB-3D 719.31 719.30 719.33 719.28 727.81 AB-3S 727.78 AB-4D 728.33 AB-4S 728.27 AB-7I 729.47 AB-6BRU 1 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 9/15/2015 17.76 711.71 6/15/2016 74.00 655.47 7/9/2015 14.95 714.42 9/15/2015 16.94 712.43 6/15/2016 16.92 712.45 7/8/2015 23.88 658.58 9/15/2015 25.04 657.42 6/15/2016 24.82 657.64 7/8/2015 25.10 656.55 9/15/2015 26.07 655.58 6/15/2016 25.74 655.91 7/9/2015 91.55 675.38 9/15/2015 92.93 674.00 ------ 7/9/2015 89.27 678.17 9/15/2015 90.61 676.83 ------ 7/9/2015 81.49 695.47 9/15/2015 82.61 694.35 ------ 7/9/2015 82.76 694.09 9/15/2015 83.73 693.12 ------ 7/9/2015 66.05 712.53 9/15/2015 68.89 709.69 ------ 7/9/2015 65.29 713.23 ------ ------ 7/9/2015 30.02 674.44 9/15/2015 34.40 670.06 6/15/2016 31.40 673.06 7/9/2015 33.26 670.96 9/15/2015 34.86 669.36 6/15/2016 31.49 672.73 7/9/2015 11.90 693.83 9/15/2015 58.11 647.62 6/15/2016 55.40 650.33 7/9/2015 57.40 647.96 9/15/2015 57.28 648.08 6/15/2016 54.42 650.94 7/9/2015 53.66 651.82 9/15/2015 56.50 648.98 6/15/2016 53.61 651.87 7/9/2015 29.83 644.85 9/15/2015 32.85 641.83BG-3D 674.68 BG-1S 704.22 BG-2BR 705.73 BG-2S 705.48 AS-3S 778.52 BG-1D 704.46 BG-2D 705.36 AS-2D 776.96 AS-2S 776.85 AS-3D 778.58 AB-8S 681.65 AS-1D 766.93 AS-1S 767.44 AB-7I 729.47 AB-7S 729.37 AB-8D 682.46 2 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/15/2016 28.93 645.75 7/9/2015 28.93 644.96 9/15/2015 30.00 643.89 6/15/2016 27.91 645.98 ------ ------ 6/15/2016 170.52 538.39 ------ ------ 6/15/2016 37.66 681.58 7/8/2015 112.90 549.33 9/15/2015 66.77 595.46 6/15/2016 61.89 600.34 7/8/2015 9.69 653.31 9/15/2015 11.20 651.80 6/15/2016 8.94 654.06 7/8/2015 31.06 653.47 9/15/2015 31.90 652.63 6/15/2016 30.33 654.20 7/8/2015 27.86 656.43 9/15/2015 28.90 655.39 6/15/2016 27.08 657.21 7/8/2015 13.65 643.92 9/15/2015 14.20 643.37 6/15/2016 13.13 644.44 7/8/2015 14.92 643.79 9/15/2015 15.25 643.46 6/15/2016 14.42 644.29 ------ ------ 6/15/2016 27.80 645.01 ------ ------ 6/15/2016 25.74 645.53 ------ ------ 6/15/2016 23.20 662.77 ------ ------ 6/15/2016 24.78 660.37 ------ ------ 6/15/2016 64.14 715.36 7/8/2015 34.40 662.07 9/15/2015 36.05 660.42 6/15/2016 34.44 662.03 GWA-10BRU 657.57 GWA-10S 658.71 GWA-1BRU 696.47 GWA-14S 779.50 GWA-12D 685.97 GWA-12S 685.15 GWA-11D 672.81 GWA-11S 671.27 C-1S 663.00 C-2D 684.53 C-2S 684.29 BG-3S 673.89 C-1BRU 662.23 BG-4BR 708.91 BG-5BR 719.24 3 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 7/8/2015 35.08 661.15 9/15/2015 36.50 659.73 6/15/2016 34.83 661.40 ------ 9/15/2015 47.56 690.79 6/15/2016 44.77 693.58 ------ 9/15/2015 45.06 692.19 6/15/2016 42.78 694.47 ------ 9/15/2015 45.19 693.86 6/15/2016 42.83 696.22 ------ 9/15/2015 58.62 705.16 6/15/2016 57.00 706.78 7/9/2015 52.65 709.29 9/15/2015 56.21 705.73 6/15/2016 54.75 707.19 7/9/2015 49.59 712.92 9/15/2015 53.12 709.39 6/15/2016 52.22 710.29 7/9/2015 42.85 703.38 9/15/2015 47.02 699.21 6/15/2016 43.86 702.37 7/9/2015 41.00 704.94 9/15/2015 43.20 702.74 6/15/2016 41.89 704.05 7/9/2015 40.02 705.89 9/15/2015 41.91 704.00 6/15/2016 40.84 705.07 7/8/2015 44.58 645.24 9/15/2015 45.20 644.62 6/15/2016 44.30 645.52 ------ 9/15/2015 51.21 638.64 6/15/2016 45.12 644.73 7/8/2015 44.75 645.13 9/15/2015 45.53 644.35 6/15/2016 44.46 645.42 7/8/2015 31.58 645.50 9/15/2015 32.29 644.79 6/15/2016 30.85 646.23 7/8/2015 31.53 645.52 9/15/2015 32.24 644.81 6/15/2016 30.84 646.21 ------ GWA-3SA 677.05 GWA-4BR 695.89 GWA-2BR 689.82 GWA-2BRU 689.85 GWA-3D 677.08 GWA-23BR 746.23 GWA-23D 745.94 GWA-23S 745.91 GWA-22BR-A 763.78 GWA-22D 761.94 GWA-22S 762.51 GWA-20S 739.05 GWA-1S 696.23 GWA-20BR 738.35 GWA-20D 737.25 GWA-2S 689.88 4 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 9/15/2015 29.74 666.15 6/15/2016 21.33 674.56 7/10/2015 22.68 673.88 9/15/2015 27.75 668.81 6/15/2016 23.33 673.23 7/10/2015 22.18 674.17 9/15/2015 27.51 668.84 6/15/2016 23.13 673.22 ------ 9/15/2015 72.06 715.57 6/15/2016 68.22 719.41 7/9/2015 77.54 710.41 9/15/2015 77.94 710.01 6/15/2016 64.66 723.29 7/9/2015 55.31 714.75 9/15/2015 56.72 713.34 6/15/2016 54.69 715.37 7/9/2015 55.01 715.48 9/15/2015 56.45 714.04 6/15/2016 54.41 716.08 7/9/2015 17.22 671.01 9/15/2015 19.88 668.35 6/15/2016 17.76 670.47 7/9/2015 18.17 670.98 9/15/2015 20.85 668.30 6/15/2016 18.28 670.87 7/9/2015 19.06 670.18 9/15/2015 21.84 667.40 6/15/2016 17.85 671.39 7/8/2015 17.92 671.08 9/15/2015 20.08 668.92 6/15/2016 21.76 667.24 7/8/2015 17.98 671.26 9/15/2015 27.04 662.20 6/15/2016 22.09 667.15 7/8/2015 112.92 541.34 9/15/2015 112.72 541.54 6/15/2016 109.18 545.08 7/8/2015 0.91 653.78 9/15/2015 9.02 645.67 6/15/2016 2.33 652.36 7/8/2015 6.22 648.24 9/15/2015 6.53 647.93 6/15/2016 6.88 647.58 7/8/2015 10.63 643.74 9/15/2015 11.31 643.06MW-10 654.37 GWA-9D 654.69 GWA-9S 654.46 GWA-8D 689.00 GWA-8S 689.24 GWA-9BR 654.26 GWA-7BR 688.23 GWA-7D 689.15 GWA-7S 689.24 GWA-5S 787.95 GWA-6D 770.06 GWA-6S 770.49 GWA-4D 696.56 GWA-4S 696.35 GWA-5D 787.63 GWA-4BR 695.89 5 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 6/15/2016 ---- 7/8/2015 28.59 664.59 9/15/2015 30.38 662.80 6/15/2016 ---- 7/8/2015 28.62 664.68 9/15/2015 ---- 6/15/2016 ---- 7/8/2015 11.04 643.07 9/15/2015 11.62 642.49 6/15/2016 ---- 7/8/2015 10.22 652.62 9/15/2015 11.45 651.39 6/15/2016 ---- 7/8/2015 13.38 643.74 9/15/2015 14.14 642.98 6/15/2016 12.80 -- 7/8/2015 12.58 643.95 9/15/2015 13.27 643.26 6/15/2016 12.13 644.40 7/8/2015 12.85 643.84 9/15/2015 13.66 643.03 6/15/2016 12.37 644.32 7/8/2015 3.31 649.95 9/15/2015 4.07 649.19 6/15/2016 3.44 649.82 7/8/2015 1.23 652.58 9/15/2015 1.89 651.92 6/15/2016 1.86 651.95 7/8/2015 27.82 687.39 9/15/2015 29.66 685.55 6/15/2016 30.82 684.39 7/8/2015 27.46 687.03 9/15/2015 27.55 686.94 6/15/2016 27.32 687.17 7/8/2015 2.51 652.45 9/15/2015 3.20 651.76 6/15/2016 3.02 651.94 7/8/2015 10.41 645.06 9/15/2015 10.65 644.82 6/15/2016 9.93 645.54 7/8/2015 21.06 647.32 9/15/2015 62.19 606.19 6/15/2016 20.99 647.39 7/8/2015 19.56 648.16 9/15/2015 19.89 647.83 6/15/2016 19.57 648.15 MW-3S 655.47 MW-4D MW-4S 668.38 667.72 MW-2D 715.21 MW-2S 714.49 MW-3D 654.96 MW-15 657.12 MW-15BR 656.53 MW-1S 653.81 MW-15D MW-1D 656.69 653.26 MW-11SR 693.30 MW-13 654.11 MW-14 662.84 MW-11DR 693.18 6 of 7 Riverbend Steam Station CSA Supplement 2 Table 3-5: Summary of Groundwater Elevations Well Identification Date Top of Casing (TOC) Depth to Water (DTW) Groundwater Elevation 7/8/2015 2.23 647.66 9/15/2015 3.09 646.80 6/15/2016 2.33 647.56 7/8/2015 5.86 643.55 9/15/2015 6.13 643.28 6/15/2016 5.39 644.02 7/8/2015 0.17 650.63 9/15/2015 1.80 649.00 6/15/2016 0.80 650.00 7/8/2015 0.60 649.73 9/15/2015 2.30 648.03 6/15/2016 1.93 648.40 7/9/2015 54.04 711.76 9/15/2015 55.56 710.24 6/15/2016 53.69 712.11 7/9/2015 53.10 712.05 9/15/2015 54.60 710.55 6/15/2016 52.76 712.39 7/9/2015 53.96 711.99 9/15/2015 55.34 710.61 6/15/2016 53.51 711.92 7/9/2015 50.48 705.55 ------ ------ 7/9/2015 47.58 707.16 ------ ------ 7/9/2015 45.54 709.86 ------ ------ 7/8/2015 4.10 647.74 9/15/2015 4.71 647.13 6/15/2016 3.75 648.09 7/8/2015 2.92 648.72 9/15/2015 3.54 648.10 6/15/2016 2.53 649.11 7/8/2015 3.55 647.93 9/15/2015 4.14 647.34 6/15/2016 3.18 648.30 7/9/2015 41.27 707.75 9/15/2015 43.49 705.53 ------ 7/9/2015 47.12 675.98 9/15/2015 49.40 673.70 ------ OB-1 749.02 754.74 755.40 651.84 651.64 651.48 MW-6D 650.80 MW-6S 650.33 765.15 765.43 756.03 MW-5D MW-5S 649.89 649.41 MW-7D MW-7SR MW-8D MW-7BR 765.80 723.10OB-2 MW-8I MW-8S MW-9 MW-9BR MW-9D 7 of 7 Riverbend Steam Station CSA Supplement 2 Ta b l e 3 - 6 : S u m m a r y o f C a t i o n - A n i o n B a l a n c e D i f f e r e n ce 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 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 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 3 / 2 4 / 2 0 1 6 0 0 1 4 . 7 0 . 2 4 1 4 . 9 0 . 1 3 8 0 0 6 0 . 3 1. 2 5 5 1 . 6 3 4 2 0 . 5 1 . 0 2 2 4 . 0 6 0 . 3 3 4 5 . 1 3 0 . 1 3 1 4 . 2 1 0 . 1 8 3 1 . 6 7 1 .1% SW - 2 S u r f a c e W a t e r 3 / 2 4 / 2 0 1 6 0 0 1 4 . 7 0 . 2 4 1 4 . 8 0 . 1 3 5 0 0 6 0 . 2 1. 2 5 3 1 . 6 2 9 1 9 . 7 0 . 9 8 3 3 . 8 9 0 . 3 2 4 . 9 4 0 . 1 2 6 4 . 2 1 0 . 1 8 3 1 . 6 1 2 - 0.5% AB - 1 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 3 0 7 1 0 . 2 3 3 1 1 . 1 0 . 1 8 2 5 . 2 0 . 1 4 6 0. 0 1 5 0 3 1 . 1 0 . 6 4 7 1 1 . 2 0 8 8 7 . 9 4 . 3 8 4 0 . 0 6 0 3 0 . 0 0 5 6 2 . 4 1 . 5 9 6 2 0.9 0 . 9 0 9 6 . 8 9 4 - 2 3 . 8 % AB - 1 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 1 0 . 0 1 6 3 . 8 0 . 1 0 7 0 . 7 6 0 . 0 1 2 0 .7 5 0 . 0 1 6 0 . 1 5 1 0 . 6 2 8 0 . 0 3 1 0 . 6 9 8 0 . 0 5 7 0 0 0 0 0 . 0 8 8 - 2 6 . 4 % AB - 2 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 1 0 6 1 . 7 3 8 5 . 5 0 . 1 5 5 0 . 2 0 . 0 0 3 15 . 9 0 . 3 3 1 2 . 2 2 7 3 0 . 1 1 . 5 0 1 7 . 6 1 0 . 6 2 6 0 0 1 0 . 4 0 . 4 5 2 2 . 5 7 9 7 . 3 % AB - 2 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 6 . 8 0 . 1 1 1 1 2 . 5 0 . 3 5 2 0 . 3 1 0 . 0 05 3 7 . 4 0 . 7 7 8 1 . 2 4 6 1 . 1 0 . 0 5 5 0 . 4 4 1 0 . 0 3 6 0 0 2 5 . 8 1 . 1 2 2 1 . 2 1 3 - 1.3% AB - 3 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 5 1 . 9 1 . 7 3 0 0 2 . 1 0 . 0 5 9 0 0 1 4 . 8 0 .3 0 8 2 . 0 9 7 3 . 1 5 0 . 1 5 7 0 . 0 5 4 8 0 . 0 0 5 3 0 0 . 7 6 7 2 4 1 . 0 4 3 1 . 9 7 2 - 3 . 1% AB - 3 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 3 7 4 1 2 . 4 6 7 0 0 7 . 8 0 . 2 2 0 . 0 5 3 0 . 0 01 1 2 0 2 . 4 9 7 1 5 . 1 8 5 2 2 8 1 1 . 3 7 2 0 0 1 5 0 3 . 8 3 6 1 1 1 4 . 8 2 6 2 0 . 0 3 4 1 3 .8% AB - 4 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 1 5 . 4 0 . 5 1 3 3 9 . 9 0 . 6 5 4 2 0 . 0 5 6 0 . 57 0 . 0 0 9 7 . 1 0 . 1 4 8 1 . 3 8 1 3 . 7 0 . 6 8 3 2 . 2 0 . 1 8 1 6 . 0 5 0 . 1 5 5 7 . 8 4 0 . 341 1 . 3 6 - 0 . 7 % AB - 5 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 2 0 4 3 . 3 4 4 5 0 . 1 4 1 0 . 1 3 0 . 0 0 2 6 2 1 . 2 9 4 . 7 7 7 4 4 . 5 2 . 2 1 9 2 . 1 1 0 . 1 7 4 7 0 . 1 1 . 7 9 3 3 1 . 7 1 . 3 7 8 5 . 5 6 4 7.6% AB - 6 B R U G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 3 3 1 . 1 5 0 . 3 0 . 8 2 5 5 . 5 0 . 1 5 5 0 . 02 9 0 9 5 . 7 1 . 9 9 2 4 . 0 7 2 3 9 1 . 9 4 5 9 . 8 6 0 . 8 1 2 1 6 . 5 0 . 4 2 2 1 1 0 . 4 7 8 3 .657 - 5 . 4 % AB - 6 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 4 5 . 5 0 . 7 4 6 7 . 9 0 . 2 2 3 0 0 1 6 . 1 0 .3 3 5 1 . 3 0 4 2 0 0 . 9 9 8 0 . 5 9 0 . 0 4 9 0 0 7 . 9 8 0 . 3 4 7 1 . 3 9 4 3 . 3 % AB - 7 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 7 7 . 2 2 . 5 7 3 1 5 . 9 0 . 2 6 1 3 . 2 0 . 0 9 0 .0 5 4 0 . 0 0 1 3 4 . 3 0 . 7 1 4 3 . 6 3 9 2 7 . 7 1 . 3 8 2 0 . 1 6 1 0 . 0 1 3 6 . 0 1 0 . 1 5 4 26.9 1 . 1 7 2 . 7 1 9 - 1 4 . 5 % AB - 7 I G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 7 . 5 0 . 1 2 3 2 0 . 0 5 6 0 . 1 1 0 . 0 0 2 1 2 0 . 2 5 0 . 4 3 1 1 . 7 6 0 . 0 8 8 0 . 7 6 7 0 . 0 6 3 0 0 7 . 3 6 0 . 3 2 0 . 4 7 1 4 . 4 % AB - 8 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 4 9 . 1 0 . 8 0 5 5 . 7 0 . 1 6 1 0 . 0 2 4 0 1 29 2 . 6 8 5 3 . 6 5 1 4 6 2 . 2 9 4 1 1 . 8 0 . 9 7 1 2 . 8 0 . 0 7 2 1 3 . 2 0 . 5 7 4 3 . 9 1 1 3 .4% AB - 8 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 5 0 . 0 8 2 5 . 2 0 . 1 4 6 0 . 3 9 0 . 0 0 6 9 7. 6 2 . 0 3 1 2 . 2 6 5 1 7 . 7 0 . 8 8 3 1 1 0 . 9 0 5 0 0 9 . 1 4 0 . 3 9 7 2 . 1 8 5 - 1 . 8 % BG - 1 D G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 2 1 6 7 . 2 0 0 2 . 7 0 . 0 7 6 0 0 3 1 . 7 0 . 6 6 7. 9 3 6 4 7 . 5 2 . 3 6 9 0 0 8 6 . 9 2 . 2 2 3 5 1 . 9 2 . 2 5 7 6 . 8 4 9 - 7 . 4 % BG - 1 S G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 0 0 5 . 5 0 . 0 9 1 . 4 0 . 0 3 9 0 . 1 0 . 0 0 2 0 .7 6 0 . 0 1 6 0 . 1 4 7 0 . 5 8 8 0 . 0 2 9 1 . 0 8 0 . 0 8 9 0 0 0 0 0 . 1 1 8 - 1 0 . 9 % BG - 2 B R G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 0 0 9 9 . 9 1 . 6 3 8 3 . 4 0 . 0 9 6 0 0 1 2 . 6 0. 2 6 2 1 . 9 9 6 2 6 . 7 1 . 3 3 2 3 . 3 2 0 . 2 7 3 3 0 . 0 7 7 1 3 . 7 0 . 5 9 6 2 . 2 7 8 6 . 6 % BG - 2 D G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 9 8 . 6 3 . 2 8 7 0 0 9 . 5 0 . 2 6 8 1 . 5 0 . 0 2 4 3 6 . 3 0 . 7 5 5 4 . 3 3 4 2 8 1 . 3 9 7 0 . 3 4 7 0 . 0 2 9 6 . 0 1 0 . 1 5 4 3 7 . 2 1 . 6 1 7 3 .197 - 1 5 . 1 % BG - 2 S G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 0 0 3 0 . 4 0 . 4 9 8 1 2 . 4 0 . 3 4 9 1 0 0 . 1 6 1 1 . 7 0 . 0 3 5 1 . 0 4 3 1 9 . 6 0 . 9 7 8 3 . 8 4 0 . 3 1 6 0 0 9 . 0 9 0 . 3 9 5 1 . 6 8 9 2 3 . 6% BG - 3 D G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 0 0 3 4 . 5 0 . 5 6 6 3 0 . 0 8 5 1 . 9 0 . 0 3 1 1 .4 0 . 0 2 9 0 . 7 1 1 7 . 9 8 0 . 3 9 8 1 . 8 9 0 . 1 5 6 0 0 7 . 7 5 0 . 3 3 7 0 . 8 9 1 1 1 . 2 % BG - 3 S G r o u n d w a t e r 3 / 1 4 / 2 0 1 6 0 0 3 4 . 9 0 . 5 7 2 2 . 8 0 . 0 7 9 0 0 1 . 9 0 . 04 0 . 6 9 1 7 . 1 2 0 . 3 5 5 0 . 9 2 0 . 0 7 6 0 0 6 . 4 7 0 . 2 8 1 0 . 7 1 2 1 . 5 % BG - 5 B R G r o u n d w a t e r 4 / 2 2 / 2 0 1 6 0 0 1 1 9 1 . 9 5 1 1 4 . 5 0 . 4 0 8 0 0 2 6 . 4 0. 5 4 9 2 . 9 0 8 3 9 . 7 1 . 9 8 6 . 6 0 . 5 4 3 5 . 7 4 0 . 1 4 7 1 6 . 2 0 . 7 0 4 3 . 3 7 4 7 . 4% C- 2 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 1 2 0 1 . 9 6 7 2 . 5 0 . 0 7 0 . 0 1 5 0 2 . 2 0 .0 4 6 2 . 0 8 3 3 1 . 8 1 . 5 8 6 3 . 9 4 0 . 3 2 4 0 0 1 1 . 6 0 . 5 0 4 2 . 4 1 4 7 . 4 % C- 2 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 0 0 3 . 1 0 . 0 8 7 3 . 3 0 . 0 5 3 6 0 1 . 2 4 9 1. 3 8 9 1 0 . 5 0 . 5 2 4 3 . 9 8 0 . 3 2 8 7 . 9 7 0 . 2 0 4 3 . 9 1 0 . 1 7 1 . 2 2 6 - 6 . 2 % GW A - 1 0 B R U G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 2 7 5 9 . 1 6 7 0 0 4 . 6 0 . 1 3 0 0 2 0 . 4 0 . 4 2 5 9 . 7 2 2 4 2 . 5 2 . 1 2 0 . 4 4 6 0 . 0 3 7 1 1 4 2 . 9 1 6 3 9 . 2 1 . 7 0 4 6 . 7 7 7 -17.8% GW A - 1 0 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 4 . 1 0 . 0 6 7 6 . 3 0 . 1 7 7 0 0 3 4 . 2 0. 7 1 2 0 . 9 5 6 4 . 7 4 0 . 2 3 6 5 . 9 4 0 . 4 8 9 0 0 4 . 4 2 0 . 1 9 2 0 . 9 1 7 - 2 . 1 % GW A - 1 1 D G r o u n d w a t e r 2 / 2 5 / 2 0 1 6 0 0 6 6 . 8 1 . 0 9 5 1 9 . 1 0 . 5 3 8 0 . 0 6 6 0 . 0 0 1 1 5 5 0 3 2 . 2 5 8 3 3 . 8 9 2 4 1 0 2 0 . 4 4 9 1 0 4 8 . 5 6 9 . 5 3 0 . 2 4 4 3 1 . 8 1.383 3 0 . 6 3 6 - 5 . 0 % GW A - 1 1 S G r o u n d w a t e r 2 / 2 3 / 2 0 1 6 0 0 1 0 4 1 . 7 0 5 6 0 . 1 6 9 0 0 7 5 . 6 1 . 57 3 3 . 4 4 7 2 8 . 6 1 . 4 2 6 1 0 . 8 0 . 8 8 9 0 0 1 1 . 9 0 . 5 1 7 2 . 8 3 2 - 9 . 8 % GW A - 1 2 D G r o u n d w a t e r 2 / 1 9 / 2 0 1 6 0 0 2 9 . 7 0 . 4 8 7 3 . 6 0 . 1 0 1 0 . 8 6 0 .0 1 4 4 2 9 8 . 9 2 8 9 . 5 3 1 0 7 5 . 3 3 7 3 5 . 2 2 . 8 9 7 7 . 1 8 0 . 1 8 4 2 7 . 4 1 . 1 9 1 9.609 0 . 4 % GW A - 1 2 S G r o u n d w a t e r 2 / 2 6 / 2 0 1 6 0 0 0 0 2 . 6 0 . 0 7 3 0 . 5 5 0 . 0 0 9 2 3 9 4. 9 7 4 5 . 0 5 6 5 4 2 . 6 9 3 1 9 . 3 1 . 5 8 8 4 . 6 3 0 . 1 1 8 1 1 . 4 0 . 4 9 6 4 . 8 9 5 - 1 .6% GW A - 1 4 S G r o u n d w a t e r 3 / 1 / 2 0 1 6 0 0 5 . 5 0 . 0 9 2 . 8 0 . 0 7 9 0 0 2 . 1 0 . 0 44 0 . 2 1 3 1 . 3 1 0 . 0 6 5 0 . 3 9 8 0 . 0 3 3 0 0 3 . 0 2 0 . 1 3 1 0 . 2 2 9 3 . 6 % GW A - 1 B R U G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 6 4 . 8 1 . 0 6 2 2 . 2 0 . 0 6 2 0 0 1 1 0. 2 2 9 1 . 3 5 3 1 8 . 3 0 . 9 1 3 3 . 3 9 0 . 2 7 9 2 . 8 2 0 . 0 7 2 6 . 3 8 0 . 2 7 7 1 . 5 4 1 6.5% GW A - 1 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 2 8 . 9 0 . 4 7 4 5 . 6 0 . 1 5 8 0 . 1 4 0 . 00 2 1 . 4 0 . 0 2 9 0 . 6 6 3 5 . 7 0 . 2 8 4 2 . 9 5 0 . 2 4 3 0 0 5 . 1 3 0 . 2 2 3 0 . 7 5 6 . 2 % GW A - 2 0 B R G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 7 7 2 . 5 6 7 1 4 1 2 . 3 1 1 2 . 9 0 . 0 8 2 0 0 1 9 . 9 0 . 4 1 4 5 . 3 7 4 3 9 . 2 1 . 9 5 5 0 . 1 5 8 0 . 0 1 3 8 0 . 2 2 . 0 5 1 3 1 . 2 1 . 3 57 5 . 3 7 6 0 . 0 % GW A - 2 0 D G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 2 2 6 0 7 5 . 3 3 3 2 3 8 3 . 9 0 2 1 4 . 3 0 . 40 3 0 0 9 . 9 0 . 2 0 6 7 9 . 8 4 4 7 3 3 3 6 . 5 5 9 0 0 5 8 0 1 4 . 8 3 4 1 5 5 6 . 7 3 9 5 8 . 1 32 - 1 5 . 7 % GW A - 2 0 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 3 . 4 0 . 0 5 6 9 . 1 0 . 2 5 6 0 0 0 . 7 8 0. 0 1 6 0 . 3 2 8 1 . 0 9 0 . 0 5 4 1 . 1 1 0 . 0 9 1 0 0 4 . 2 3 0 . 1 8 4 0 . 3 2 9 0 . 2 % GW A - 2 1 B R G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 4 2 6 1 4 . 2 8 0 . 1 1 . 3 1 3 4 . 1 0 . 1 1 5 0 0 9 . 3 0 . 1 9 4 1 5 . 8 2 2 8 3 4 . 1 4 0 . 1 1 1 0 . 0 0 9 7 0 . 2 1 . 7 9 5 8 7 . 9 3 . 8 2 2 9.766 - 2 3 . 7 % GW A - 2 1 D G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 0 0 7 8 1 . 2 7 9 3 0 . 0 8 5 0 0 1 8 . 8 0 . 3 91 1 . 7 5 5 1 8 . 2 0 . 9 0 8 2 . 9 7 0 . 2 4 4 1 3 . 8 0 . 3 5 3 1 3 . 9 0 . 6 0 4 2 . 1 0 9 9 . 2 % GW A - 2 1 S G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 0 0 0 0 2 . 2 0 . 0 6 2 1 . 1 0 . 0 1 8 0 0 0 . 08 0 . 3 6 4 0 . 0 1 8 0 . 1 5 1 0 . 0 1 2 0 0 2 . 5 3 0 . 1 1 0 . 1 4 2 7 . 3 % GW A - 2 2 B R - A Gr o u n d w a t e r 3 / 2 3 / 2 0 1 6 5 . 4 0 . 1 8 5 3 0 . 8 6 9 4 . 9 0 . 1 3 8 0 0 3 2 . 6 0 . 6 78 1 . 8 6 5 1 8 0 . 8 9 8 1 . 4 2 0 . 1 1 7 2 . 8 3 0 . 0 7 2 1 9 . 5 0 . 8 4 8 1 . 9 3 5 1 . 8 % GW A - 2 2 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 3 3 . 9 0 . 5 5 6 N A * 0 . 0 6 8 0 . 0 0 1 NA * 6 . 2 2 0 . 3 1 0 . 5 7 6 0 . 0 4 7 0 0 8 . 8 0 . 3 8 3 0 . 7 4 - - GW A - 2 2 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 2 . 2 0 . 0 3 6 3 . 3 0 . 0 9 3 0 . 0 2 8 0 0 0 0 . 1 2 9 0 . 5 7 8 0 . 0 2 9 0 . 4 1 5 0 . 0 3 4 0 0 0 0 0 . 0 6 3 - 3 4 . 4 % GW A - 2 3 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 4 8 0 1 6 0 0 2 . 4 0 . 0 6 8 0 0 8 . 4 0 . 1 75 1 6 . 2 4 3 1 5 3 7 . 6 3 1 0 . 1 1 1 0 . 0 0 9 7 2 . 9 1 . 8 6 4 3 6 . 8 1 . 6 1 1 . 1 0 4 - 1 8 .8% GW A - 2 3 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 9 5 . 9 3 . 1 9 7 0 0 2 . 3 0 . 0 6 5 0 0 7 . 3 0. 1 5 2 3 . 4 1 4 3 1 . 9 1 . 5 9 1 0 . 1 4 3 0 . 0 1 2 1 3 . 1 0 . 3 3 5 1 5 . 1 0 . 6 5 7 2 . 5 9 5 - 1 3 . 6 % GW A - 2 3 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 5 . 8 0 . 0 9 5 2 . 4 0 . 0 6 8 0 . 4 1 0 . 00 7 0 . 7 9 0 . 0 1 6 0 . 1 8 6 1 . 0 7 0 . 0 5 3 0 . 4 4 3 0 . 0 3 6 0 0 0 0 0 . 0 8 9 - 3 5 . 3 % GW A - 2 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 7 1 . 4 1 . 1 7 5 . 1 0 . 1 4 4 0 0 3 9 . 6 0. 8 2 4 2 . 1 3 8 3 2 . 3 1 . 6 1 1 5 . 5 5 0 . 4 5 7 6 . 7 6 0 . 1 7 3 9 . 2 3 0 . 4 0 1 2 . 6 4 2 10.5%1 30 6 1 3 5 . 5 6 2 4 8 . 0 5 2 0 . 0 5 1 2 . 1 5 3 9 . 1 Charge Balance (%) 60 6 1 3 5 . 5 6 2 9 6 . 1 4 0 . 1 2 4 . 3 3 9 . 1 2 3 2 1 1 1 2 2 An i o n s Ca t i o n s 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 2 23 1 1 o f 3 Riverbend Steam Station CSA Supplement 2 Ta b l e 3 - 6 : S u m m a r y o f C a t i o n - A n i o n B a l a n c e D i f f e r e n ce 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 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 e q / L 1 30 6 1 3 5 . 5 6 2 4 8 . 0 5 2 0 . 0 5 1 2 . 1 5 3 9 . 1 Charge Balance (%) 60 6 1 3 5 . 5 6 2 9 6 . 1 4 0 . 1 2 4 . 3 3 9 . 1 2 3 2 1 1 1 2 2 An i o n s Ca t i o n s 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 2 23 1 GW A - 2 B R U G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 N A * N A * N A * 0 . 0 6 3 0 . 0 0 1 N A * 9 6. 8 4 . 8 2 8 0 0 1 2 2 3 . 1 2 7 7 . 5 3 . 3 7 1 1 . 3 1 8 - - GW A - 2 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 2 8 . 6 0 . 4 6 9 5 . 8 0 . 1 6 3 0 . 3 7 0 . 00 6 3 5 . 7 0 . 7 4 3 1 . 3 8 1 1 2 . 5 0 . 6 2 3 6 . 9 1 0 . 5 6 9 0 0 5 . 7 3 0 . 2 4 9 1 . 4 4 1 2.1% GW A - 3 D G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 0 0 8 8 . 1 1 . 4 4 4 6 . 2 0 . 1 7 5 0 0 1 5 8 0 32 . 8 8 2 3 4 . 5 0 1 4 4 0 2 1 . 9 4 5 1 4 3 1 1 . 7 7 1 0 . 7 0 . 2 7 4 4 9 . 9 2 . 1 7 3 6 . 1 5 9 2 . 3 % GW A - 3 S - A G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 0 0 3 1 . 3 0 . 5 1 3 5 . 9 0 . 1 6 6 0 0 1 5 80 3 2 . 8 8 2 3 3 . 5 6 1 4 0 7 2 0 . 2 9 9 1 5 2 1 2 . 5 1 8 . 7 8 0 . 2 2 5 4 2 1 . 8 2 6 3 4 . 8 6 1 . 9 % GW A - 4 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 3 2 4 1 0 . 8 1 2 6 2 . 0 6 6 3 . 3 0 . 0 9 3 0 0 1 7 . 4 0 . 3 6 2 1 3 . 3 2 1 1 5 2 7 . 5 8 1 0 0 3 1 . 7 0 . 8 1 1 2 6 . 2 1 . 1 3 9 9 . 5 3 1 - 1 6.6% GW A - 4 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 1 5 6 5 . 2 0 0 3 . 6 0 . 1 0 1 0 . 0 1 0 8 . 9 0 .1 8 5 5 . 4 8 6 1 6 0 . 7 9 8 0 . 1 9 2 0 . 0 1 6 0 0 6 0 . 7 2 . 6 3 9 3 . 4 5 3 - 2 2 . 7 % GW A - 4 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 6 0 . 0 9 8 1 1 . 3 0 . 3 1 8 0 . 0 2 3 0 3 9 4 8 . 2 8 . 6 1 6 6 7 . 8 3 . 3 8 2 4 3 3 . 5 3 9 0 0 6 . 9 6 0 . 3 0 3 7 . 2 2 4 - 8 . 8 % GW A - 5 D G r o u n d w a t e r 3 / 2 4 / 2 0 1 6 1 7 . 9 0 . 5 9 7 4 9 . 4 0 . 8 1 2 . 3 0 . 0 6 5 0 0 7 . 6 0 . 1 5 8 1 . 6 3 2 3 . 4 1 . 1 6 7 1 . 0 7 0 . 0 8 8 0 0 1 0 . 8 0 . 4 7 1 . 7 2 5 2 . 8 % GW A - 6 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 1 7 4 2 . 8 5 2 3 0 . 0 8 5 0 0 1 4 . 8 0 . 3 08 3 . 2 4 5 7 0 3 . 4 9 1 0 . 0 8 0 9 0 . 0 0 7 2 . 6 4 0 . 0 6 8 8 . 2 4 0 . 3 5 8 3 . 9 2 4 9 . 5 % GW A - 6 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 9 . 8 0 . 1 6 1 2 . 1 0 . 0 5 9 0 . 0 6 1 0 . 00 1 0 . 7 5 0 . 0 1 6 0 . 2 3 7 1 . 3 9 0 . 0 6 9 0 . 7 6 3 0 . 0 6 3 0 0 0 0 0 . 1 3 2 - 2 8 . 5 % GW A - 7 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 8 2 . 2 1 . 3 4 8 3 . 1 0 . 0 8 7 0 . 1 1 0 .0 0 2 4 . 4 0 . 0 9 2 1 . 5 2 9 1 8 . 8 0 . 9 3 8 7 . 1 3 0 . 5 8 7 0 0 5 . 4 2 0 . 2 3 6 1 . 7 6 1 7.1% GW A - 7 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 8 0 . 8 1 . 3 2 5 2 . 9 0 . 0 8 2 0 . 0 9 8 0 .0 0 2 4 . 5 0 . 0 9 4 1 . 5 0 3 1 8 . 8 0 . 9 3 8 5 . 8 0 . 4 7 7 0 0 7 . 4 0 . 3 2 2 1 . 7 3 7 7 . 2% GW A - 7 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 3 1 . 1 0 . 5 1 3 . 8 0 . 1 0 7 0 0 0 0 0 . 6 17 6 . 2 2 0 . 3 1 4 . 3 8 0 . 3 6 0 0 0 0 0 . 6 7 4 . 1 % GW A - 8 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 4 2 . 5 0 . 6 9 7 6 0 . 1 6 9 0 0 2 4 . 5 0 . 51 1 . 3 7 6 1 1 . 6 0 . 5 7 9 8 . 8 0 . 7 2 4 0 0 4 . 5 0 . 1 9 6 1 . 4 9 9 4 . 3 % GW A - 8 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 0 0 5 . 4 0 . 1 5 2 4 . 5 0 . 0 7 3 3 9 0 . 8 12 1 . 0 3 7 1 . 8 0 . 0 9 6 . 1 6 0 . 5 0 7 3 . 6 8 0 . 0 9 4 6 . 4 1 0 . 2 7 9 0 . 9 7 - 3 . 3 % GW A - 9 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 2 3 . 3 0 . 3 8 2 6 . 3 0 . 1 7 7 0 0 3 2 . 9 0. 6 8 5 1 . 2 4 4 1 0 . 2 0 . 5 0 9 5 . 7 6 0 . 4 7 4 0 0 6 . 9 2 0 . 3 0 1 1 . 2 8 4 1 . 6 % GW A - 9 S G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 0 0 5 . 7 0 . 1 6 1 0 . 2 1 0 . 0 0 3 2 5 . 5 0. 5 3 1 0 . 6 9 5 2 . 0 1 0 . 1 2 . 6 8 0 . 2 2 1 0 0 5 . 7 5 0 . 2 5 0 . 5 7 1 - 9 . 8 % MW - 1 5 B R G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 4 0 . 0 6 6 6 . 6 0 . 1 8 6 0 . 0 4 8 0 . 0 01 2 8 . 6 0 . 5 9 5 0 . 8 4 8 3 . 5 4 0 . 1 7 7 2 . 9 2 0 . 2 4 0 0 9 . 7 9 0 . 4 2 6 0 . 8 4 3 - 0 .3% MW - 1 5 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 1 0 4 3 . 4 6 7 8 1 . 8 1 . 3 4 1 7 . 7 0 . 2 1 7 0 0 3 5 . 3 0 . 7 3 5 5 . 7 6 2 2 . 6 1 . 1 2 7 0 . 1 6 8 0 . 0 1 4 5 1 . 4 1 . 3 1 5 7 6 . 7 3 . 3 3 5 5 . 7 9 1 0 . 3 % MW - 1 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 1 9 . 2 0 . 3 1 5 6 . 4 0 . 1 8 0 0 9 3 . 2 1 . 94 2 . 4 3 5 2 4 . 7 1 . 2 3 2 8 . 2 2 0 . 6 7 7 0 0 9 . 3 9 0 . 4 0 8 2 . 3 1 7 - 2 . 5 % MW - 1 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 2 0 . 3 0 . 3 3 3 8 . 9 0 . 2 5 1 0 0 1 0 . 0 2 1 0 . 6 0 5 1 . 9 9 0 . 0 9 9 0 . 9 9 1 0 . 0 8 2 0 0 5 . 9 2 0 . 2 5 7 0 . 4 3 8 - 1 6 . 0 % MW - 2 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 3 8 . 9 0 . 6 3 8 2 . 9 0 . 0 8 2 0 . 0 5 4 0 . 00 1 1 . 1 0 . 0 2 3 0 . 7 4 4 6 . 1 5 0 . 3 0 7 3 . 6 4 0 . 3 0 0 5 . 3 5 0 . 2 3 3 0 . 8 4 6 . 1 % MW - 2 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 0 0 6 . 3 0 . 1 7 7 0 . 1 9 0 . 0 0 3 5 1 . 7 1 .0 7 6 1 . 2 5 6 9 . 9 1 0 . 4 9 4 1 . 9 8 0 . 1 6 3 5 . 0 4 0 . 1 2 9 6 . 6 1 0 . 2 8 7 1 . 0 7 3 - 7.9% MW - 3 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 5 4 . 8 0 . 8 9 8 6 . 4 0 . 1 8 0 . 0 6 0 . 0 0 1 2 6 . 4 0 . 5 4 9 1 . 6 2 8 1 7 0 . 8 4 8 8 . 8 4 0 . 7 2 8 0 0 3 . 9 1 0 . 1 7 1 . 7 4 6 3 . 5 % MW - 3 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 5 6 0 . 9 1 8 6 0 . 1 6 9 0 0 2 8 . 3 0 . 5 8 9 1. 6 7 6 1 6 . 7 0 . 8 3 3 9 . 7 9 0 . 8 0 6 0 0 3 . 9 1 0 . 1 7 1 . 8 0 9 3 . 8 % MW - 4 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 1 6 . 1 0 . 2 6 4 5 . 6 0 . 1 5 8 0 . 0 3 3 0 . 00 1 3 1 . 8 0 . 6 6 2 1 . 0 8 5 1 0 . 5 0 . 5 2 4 3 . 4 8 0 . 2 8 6 0 0 7 . 2 5 0 . 3 1 5 1 . 1 2 5 1.8% MW - 4 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 1 2 . 1 0 . 1 9 8 6 . 2 0 . 1 7 5 0 . 1 1 0 . 0 02 2 6 . 8 0 . 5 5 8 0 . 9 3 3 5 . 8 7 0 . 2 9 3 5 . 0 3 0 . 4 1 4 0 0 6 . 8 9 0 . 3 1 . 0 0 7 3 . 8 % MW - 5 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 7 2 . 2 1 . 1 8 4 6 . 5 0 . 1 8 3 0 . 1 4 0 . 0 02 4 4 . 8 0 . 9 3 2 2 . 3 0 1 2 3 . 2 1 . 1 5 7 1 1 . 9 0 . 9 7 9 0 0 7 . 9 7 0 . 3 4 7 2 . 4 8 3 3 .8% MW - 5 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 4 . 6 0 . 0 7 5 7 . 4 0 . 2 0 8 0 . 0 4 9 0 . 0 01 1 4 . 5 0 . 3 0 2 0 . 5 8 6 0 . 8 8 1 0 . 0 4 4 0 . 8 5 0 . 0 7 0 0 1 1 . 4 0 . 4 9 6 0 . 6 1 2 . 0% MW - 6 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 3 1 . 3 0 . 5 1 3 6 . 6 0 . 1 8 6 0 0 3 5 . 9 0 .7 4 7 1 . 4 4 6 1 3 . 2 0 . 6 5 8 6 . 3 4 0 . 5 2 2 0 0 6 . 3 1 0 . 2 7 4 1 . 4 5 4 0 . 3 % MW - 6 S G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 0 0 2 1 0 . 3 4 4 6 . 7 0 . 1 8 9 0 0 3 8 . 4 0 . 7 99 1 . 3 3 2 1 0 . 6 0 . 5 2 9 6 . 2 7 0 . 5 1 6 0 0 6 . 8 9 0 . 3 1 . 3 4 5 0 . 5 % MW - 7 B R G r o u n d w a t e r 3 / 2 8 / 2 0 1 6 2 5 1 8 . 3 6 7 0 0 4 . 6 0 . 1 3 0 . 0 1 5 0 5 . 5 0 . 1 1 4 8 . 6 1 1 4 8 3 2 4 . 0 9 0 0 1 6 . 2 0 . 4 1 4 2 8 . 7 1 . 2 4 8 2 5 . 7 5 2 4 9 . 9 % MW - 7 D G r o u n d w a t e r 3 / 2 3 / 2 0 1 6 0 0 1 7 . 5 0 . 2 8 7 1 . 4 0 . 0 3 9 0 0 0 0 0 . 3 26 2 . 6 2 0 . 1 3 1 0 . 9 4 4 0 . 0 7 8 0 0 3 . 5 7 0 . 1 5 5 0 . 3 6 4 5 . 5 % MW - 9 B R G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 3 6 1 1 2 . 0 3 3 3 8 . 2 0 . 6 2 6 3 . 4 0 . 0 9 6 0 . 2 4 0 . 0 0 4 1 5 . 7 0 . 3 2 7 1 3 . 0 8 6 1 4 5 7 . 2 3 2 0 . 3 0 1 0 . 0 2 5 1 3 . 2 0 . 3 3 8 1 3 . 9 0 . 6 0 4 8 . 1 9 9 - 2 3 . 0 % MW - 9 D G r o u n d w a t e r 3 / 2 2 / 2 0 1 6 7 9 . 9 2 . 6 6 3 0 0 2 . 6 0 . 0 7 3 0 . 5 2 0 . 0 08 3 7 . 4 0 . 7 7 8 3 . 5 2 2 4 6 . 2 2 . 3 0 4 0 . 2 5 4 0 . 0 2 1 3 . 6 0 . 0 9 2 1 3 . 8 0 . 6 3 .017 - 7 . 7 % S- 2 A O W 4 / 2 0 / 2 0 1 6 0 0 5 7 . 8 0 . 9 4 8 6 . 4 0 . 1 8 0 . 2 3 0 . 0 0 4 8 8 . 4 1 . 8 4 2 .9 7 2 4 2 . 5 2 . 1 2 7 . 4 6 0 . 6 1 4 4 . 7 0 . 1 2 5 . 6 1 0 . 2 4 4 3 . 0 9 8 2 . 1 % S- 4 A O W 4 / 2 0 / 2 0 1 6 0 0 2 3 . 1 0 . 3 7 9 5 . 7 0 . 1 6 1 0 . 0 4 9 0 . 0 0 1 3 2 . 5 0 . 6 76 1 . 2 1 7 8 . 4 2 0 . 4 2 6 . 7 8 0 . 5 5 8 0 0 6 . 3 1 0 . 2 7 4 1 . 2 5 2 1 . 4 % S- 6 A O W 4 / 2 0 / 2 0 1 6 0 0 6 . 3 0 . 1 0 3 5 . 6 0 . 1 5 8 0 0 4 0 0 . 8 3 2 1 . 0 9 3 3 . 9 8 0. 1 9 9 6 . 1 2 0 . 5 0 4 0 0 6 . 8 0 . 2 9 6 0 . 9 9 9 - 4 . 5 % S- 7 A O W 4 / 2 0 / 2 0 1 6 0 0 1 9 . 5 0 . 3 2 5 . 1 0 . 1 4 4 0 0 2 . 3 0 . 0 4 8 0 . 5 1 2 2 . 2 3 0 . 1 1 1 4 . 1 4 0 . 3 4 1 0 0 2 . 9 7 0 . 1 2 9 0 . 5 8 1 6 . 3 % S- 8 A O W 4 / 2 0 / 2 0 1 6 0 0 4 0 . 9 0 . 6 7 1 . 6 0 . 0 4 5 0 0 1 0 . 0 2 1 0 . 7 3 6 7 . 3 0 . 36 4 2 . 3 1 0 . 1 9 0 0 6 . 2 6 0 . 2 7 2 0 . 8 2 6 5 . 8 % S- 9 A O W 4 / 2 0 / 2 0 1 6 0 0 2 2 . 7 0 . 3 7 2 5 . 6 0 . 1 5 8 0 . 0 8 3 0 . 0 0 1 2 8 . 1 0 . 5 85 1 . 1 1 6 7 . 1 9 0 . 3 5 9 5 . 9 4 0 . 4 8 9 0 0 6 . 5 4 0 . 2 8 4 1 . 1 3 2 0 . 7 % AB - 3 S P o r e w a t e r 3 / 2 3 / 2 0 1 6 0 0 6 6 . 9 1 . 0 9 7 7 . 1 0 . 2 0 0 6 0 . 3 1 . 2 5 5 2. 5 5 2 3 2 1 . 5 9 6 6 . 9 6 0 . 5 7 3 6 . 8 6 0 . 1 7 5 7 . 2 6 0 . 3 1 6 2 . 6 6 2 . 1 % AB - 4 S P o r e w a t e r 3 / 2 3 / 2 0 1 6 0 0 4 5 . 6 0 . 7 4 8 5 . 3 0 . 1 4 9 0 . 0 1 1 0 9 0 . 8 1 . 8 9 2 . 7 8 7 3 1 . 2 1 . 5 5 6 5 . 3 9 0 . 4 4 4 1 1 . 5 0 . 2 9 4 1 2 . 9 0 . 5 6 1 2 . 8 5 5 1.2% AB - 5 S P o r e w a t e r 3 / 2 2 / 2 0 1 6 0 0 3 0 9 5 . 0 6 6 9 . 3 0 . 2 6 2 0 . 0 2 3 0 1 4 3 2 .9 7 6 8 . 3 0 4 1 2 4 6 . 1 8 5 2 3 . 9 1 . 9 6 7 1 7 . 2 0 . 4 4 1 3 0 . 5 6 5 9 . 1 5 7 4 . 9 % AB - 5 S L P o r e w a t e r 3 / 2 2 / 2 0 1 6 4 0 . 4 1 . 3 4 7 1 8 . 7 0 . 3 0 7 7 . 2 0 . 2 0 3 0 0 1 6 5 3 . 4 3 4 5 . 2 9 1 6 8 . 9 3 . 4 3 6 1 . 1 2 0 . 0 9 2 1 7 0 . 4 3 5 7 . 8 8 0 . 3 4 3 4 . 3 06 - 1 0 . 3 % AB - 7 S P o r e w a t e r 3 / 2 2 / 2 0 1 6 0 0 8 6 . 5 1 . 4 1 8 4 . 7 0 . 1 3 2 0 0 3 8 . 4 0 . 7 99 2 . 3 4 9 2 4 . 5 1 . 2 2 2 5 . 2 8 0 . 4 3 5 1 3 . 7 0 . 3 5 8 . 0 6 0 . 3 5 2 . 3 5 7 0 . 2 % C- 1 S P o r e w a t e r 3 / 2 4 / 2 0 1 6 0 0 0 0 7 . 7 0 . 2 1 7 0 0 4 1 0 8 . 5 3 3 8 . 7 5 4 6 2 .2 9 4 1 7 . 2 1 . 4 1 6 1 9 0 . 4 8 6 2 6 . 8 1 . 1 6 5 5 . 3 6 1 - 2 4 . 0 % 2 o f 3 Riverbend Steam Station CSA Supplement 2 Ta b l e 3 - 6 : S u m m a r y o f C a t i o n - A n i o n B a l a n c e D i f f e r e n ce 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 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 e q / L 1 30 6 1 3 5 . 5 6 2 4 8 . 0 5 2 0 . 0 5 1 2 . 1 5 3 9 . 1 Charge Balance (%) 60 6 1 3 5 . 5 6 2 9 6 . 1 4 0 . 1 2 4 . 3 3 9 . 1 2 3 2 1 1 1 2 2 An i o n s Ca t i o n s 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 2 23 1 * 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 . ** G W A - 2 2 D : S a m p l e n o t a n a l y z e d f o r c h l o r i d e a n d s u lf a t e . ** G W A - 2 B R U : S a m p l e n o t a n a l y z e d f o r a l k a l i n i t y ( c a rb o n a t e / b i c a r b o n a t e ) , c h l o r i d e , o r s u l f a t 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 - d e t e c t s b y t h e a na 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 e d 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 . !" # % ∑ & ' ( ) * + ∑ ,) ' ( ) * ∑ & ' ( ) * - ∑ ,) ' ( ) * x 10 0 #1 2 3 4 5 6 7 8 9 : 7 3 ; < 9 => 6 7 ? 2 6 5 @ : 7 3 ; < 9 ;A> 6 !< 5 @ ; 7 3 o f 3 Riverbend Steam Station CSA Supplement 2