08/04/09 PAGE: 1 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ AZ0000035 08C ASARCO, INC RAY MINE UNIT MINERAL CREEK 05/27/14
003A DISCHARGE 003/MONTHLY 15050100 +3308010 -11058230 TURBIDITY DELMON DELMON ADDMON NTU 00070 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C NTU 3 0 003A 07/31/08 08/18/08 E00 C NTU 3 0 003A 08/31/08 09/29/08 E00 C NTU 3 0 003A 09/30/08 10/28/08 E00 190 NTU 3 0 003A 10/31/08 11/25/08 E00 1400 NTU 3 0 003A 11/30/08 12/22/08 E00 C NTU 3 0 003A 12/31/08 01/30/09 E00 C NTU 3 0 003A 01/31/09 02/20/09 E00 C NTU 3 0 003A 02/28/09 03/25/09 E00 C NTU 3 0 003A 03/31/09 04/07/09 E00 C NTU 3 0 003A 04/30/09 05/27/09 E00 C NTU 3 0 003A 05/31/09 05/06/09 E00 C NTU

PH 6.5 DELMON 9 SU 00400 1 EFFLUENT GROSS VALUE MINIMUM MAXIMUM 3 0 003A 06/30/08 07/25/08 E00 C SU 3 0 003A 07/31/08 08/18/08 E00 C SU 3 0 003A 08/31/08 09/29/08 E00 C SU 3 0 003A 09/30/08 10/28/08 E41 7.56 SU 3 0 003A 10/31/08 11/25/08 E00 8.1 8.1 SU 3 0 003A 11/30/08 12/22/08 E00 C SU 3 0 003A 12/31/08 01/30/09 E00 C SU 3 0 003A 01/31/09 02/20/09 E00 C SU 3 0 003A 02/28/09 03/25/09 E00 C SU 3 0 003A 03/31/09 04/07/09 E00 C SU 3 0 003A 04/30/09 05/27/09 E00 C SU 3 0 003A 05/31/09 05/06/09 E00 C SU08/04/09 PAGE: 2 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ SOLIDS, TOTAL SUSPENDED DELMON DELMON ADDMON MG/L 00530 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 665 MG/L 3 0 003A 10/31/08 11/25/08 E00 1800 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

NITROGEN, NITRATE TOTAL (AS N) DELMON DELMON ADDMON MG/L 00620 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 .39 MG/L 3 0 003A 10/31/08 11/25/08 E00 .84 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

CYANIDE, TOTAL (AS CN) DELMON DELMON .041 MG/L 00720 1 EFFLUENT GROSS VALUE DAILY MX08/04/09 PAGE: 3 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 B MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

SULFIDE, TOTAL (AS S) DELMON DELMON .1 MG/L 00745 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 B MG/L 3 0 003A 10/31/08 11/25/08 E00 B MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

HARDNESS, TOTAL (AS CACO3) DELMON DELMON ADDMON MG/L 00900 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L08/04/09 PAGE: 4 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 126 MG/L 3 0 003A 10/31/08 11/25/08 E00 280 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

ARSENIC, TOTAL RECOVERABLE DELMON DELMON .05 MG/L 00978 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

IRON TOTAL RECOVERABLE DELMON DELMON ADDMON MG/L 00980 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 12.2 MG/L08/04/09 PAGE: 5 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 10/31/08 11/25/08 E00 60 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

SELENIUM, TOTAL RECOVERABLE DELMON DELMON .002 MG/L 00981 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 B MG/L 3 0 003A 10/31/08 11/25/08 E90 .02 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

THALLIUM, TOTAL RECOVERABLE DELMON DELMON .0072 MG/L 00982 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L08/04/09 PAGE: 6 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

BERYLLIUM, TOTAL RECOVERABLE (AS BE) DELMON DELMON .065 MG/L 00998 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

CHROMIUM, HEXAVALENT (AS CR) DELMON DELMON .016 MG/L 01032 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L08/04/09 PAGE: 7 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

CHROMIUM, TOTAL (AS CR) DELMON DELMON .1 MG/L 01034 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

NICKEL TOTAL RECOVERABLE DELMON DELMON 1.5 MG/L 01074 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L08/04/09 PAGE: 8 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

SILVER TOTAL RECOVERABLE DELMON DELMON .037 MG/L 01079 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 B MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

ZINC TOTAL RECOVERABLE DELMON DELMON .379 MG/L 01094 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E90 .86 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L08/04/09 PAGE: 9 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ CADMIUM TOTAL RECOVERABLE DELMON DELMON .02 MG/L 01113 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

LEAD TOTAL RECOVERABLE DELMON DELMON .01 MG/L 01114 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E90 .019 MG/L 3 0 003A 10/31/08 11/25/08 E90 .14 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

COPPER TOTAL RECOVERABLE DELMON DELMON .05 MG/L 01119 1 EFFLUENT GROSS VALUE DAILY MX08/04/09 PAGE: 10 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E90 .964 MG/L 3 0 003A 10/31/08 11/25/08 E90 4.7 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

ANTIMONY, TOTAL RECOVERABLE DELMON DELMON .088 MG/L 01268 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

MANGANESE, TOTAL RECOVERABLE DELMON DELMON ADDMON MG/L 11123 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L08/04/09 PAGE: 11 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 .526 MG/L 3 0 003A 10/31/08 11/25/08 E00 2.9 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

FLOW, IN CONDUIT OR THRU TREATMENT PLANT DELMON ADDMON MGD 50050 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MGD 3 0 003A 07/31/08 08/18/08 E00 C MGD 3 0 003A 08/31/08 09/29/08 E00 C MGD 3 0 003A 09/30/08 10/28/08 E01 MGD 3 0 003A 10/31/08 11/25/08 E00 .00024 MGD 3 0 003A 11/30/08 12/22/08 E00 C MGD 3 0 003A 12/31/08 01/30/09 E00 C MGD 3 0 003A 01/31/09 02/20/09 E00 C MGD 3 0 003A 02/28/09 03/25/09 E00 C MGD 3 0 003A 03/31/09 04/07/09 E00 C MGD 3 0 003A 04/30/09 05/27/09 E00 C MGD 3 0 003A 05/31/09 05/06/09 E00 C MGD

MERCURY TOTAL RECOVERABLE DELMON DELMON .0006 MG/L 71901 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 Q MG/L08/04/09 PAGE: 12 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 3 0 003A 10/31/08 11/25/08 E00 Q MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

CHEMICAL OXYGEN DEMAND (COD) DELMON DELMON ADDMON MG/L 81017 1 EFFLUENT GROSS VALUE DAILY MX 3 0 003A 06/30/08 07/25/08 E00 C MG/L 3 0 003A 07/31/08 08/18/08 E00 C MG/L 3 0 003A 08/31/08 09/29/08 E00 C MG/L 3 0 003A 09/30/08 10/28/08 E00 28.3 MG/L 3 0 003A 10/31/08 11/25/08 E00 190 MG/L 3 0 003A 11/30/08 12/22/08 E00 C MG/L 3 0 003A 12/31/08 01/30/09 E00 C MG/L 3 0 003A 01/31/09 02/20/09 E00 C MG/L 3 0 003A 02/28/09 03/25/09 E00 C MG/L 3 0 003A 03/31/09 04/07/09 E00 C MG/L 3 0 003A 04/30/09 05/27/09 E00 C MG/L 3 0 003A 05/31/09 05/06/09 E00 C MG/L

003A ASARCO - RAY OPERATIONS - 003 +3308010 -11058230 PH DELMON DELMON 6.5 DELMON 9 SU 00400 1 EFFLUENT GROSS VALUE MINIMUM MAXIMUM 9 0 003A 06/30/09 07/29/09 E00 C SU

SULFIDE, TOTAL (AS S) DELMON DELMON DELMON DELMON ADDMON UG/L08/04/09 PAGE: 13 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ 00745 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

HARDNESS, TOTAL (AS CACO3) DELMON DELMON DELMON DELMON ADDMON MG/L 00900 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C MG/L

SULFATE, TOTAL (AS SO4) DELMON DELMON DELMON DELMON ADDMON MG/L 00945 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C MG/L

ARSENIC, TOTAL RECOVERABLE DELMON DELMON DELMON DELMON 50 UG/L 00978 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

SELENIUM, TOTAL RECOVERABLE DELMON DELMON DELMON DELMON 20 UG/L 00981 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

THALLIUM, TOTAL RECOVERABLE DELMON DELMON DELMON DELMON ADDMON UG/L 00982 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L08/04/09 PAGE: 14 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ BERYLLIUM, TOTAL RECOVERABLE (AS BE) DELMON DELMON DELMON DELMON ADDMON UG/L 00998 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

SILVER TOTAL RECOVERABLE DELMON DELMON DELMON DELMON ADDMON UG/L 01079 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

ZINC TOTAL RECOVERABLE DELMON DELMON 265 UG/L 01094 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

CADMIUM TOTAL RECOVERABLE DELMON DELMON DELMON DELMON 12.1 UG/L 01113 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

CHROMIUM TOTAL RECOVERABLE DELMON DELMON DELMON DELMON 100 UG/L 01118 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

CHROMIUM, HEXAVALENT DISSOLVED (AS CR) DELMON DELMON DELMON DELMON ADDMON UG/L 01220 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L08/04/09 PAGE: 15 MEASUREMENT VIOLATION REPORT WITH LIMITS FOR AZ0000035 (EFVIOQL6) QL ***************************************************************************************************************************** QL NPID SUBR RDF5 NAM1 NAM2 RWAT PERE

--------- ---- ---- ------------------------------ ------------------------------ ----------------------------------- -------- DSDG PIPE PHBC PLAT PLON
---- ------------------------------ -------- -------- --------- PRAM LQAV LQMX LQUC LCMN LCAV LCMX LCUC
---------------------------------------- -------- -------- ------------ -------- -------- -------- ------------ PRAM MLOC MLOC LQAS LQXS LCMS LCAS LCXS
----- ---- -------------------- -------- -------- -------- -------- -------- VIPQ VSEA VDSG MVDT DMRR MVIO NODI MQAV MQMX LQUC MCMN MCAV MCMX LCUC
---- ---- ---- -------- -------- ---- ---- -------- -------- ------------ -------- -------- -------- ------------ ANTIMONY, TOTAL RECOVERABLE DELMON DELMON DELMON DELMON ADDMON UG/L 01268 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

FLOW, IN CONDUIT OR THRU TREATMENT PLANT DELMON DELMON DELMON DELMON ADDMON MGD 50050 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C MGD

MERCURY TOTAL RECOVERABLE DELMON DELMON DELMON DELMON ADDMON UG/L 71901 1 EFFLUENT GROSS VALUE DAILY MX 9 0 003A 06/30/09 07/29/09 E00 C UG/L

011A ASARCO - RAY MINES UNIT - OUTF +3309180 -11058320 SELENIUM, TOTAL RECOVERABLE DELMON DELMON DELMON DELMON 2 UG/L 00981 1 EFFLUENT GROSS VALUE DAILY MX 9 0 011A 06/30/09 07/29/09 E90 4 UG/L

FLOW, IN CONDUIT OR THRU TREATMENT PLANT DELMON ADDMON MGD DELMON DELMON DELMON 50050 1 EFFLUENT GROSS VALUE DAILY MX 9 0 011A 06/30/09 07/29/09 E00 .138 MGD SUB-TOTAL QUICK LOOK PRINT LINES: 408 TOTAL QUICK LOOK PRINT LINES: 408