EPA-670/2-75-050b June 1975 Environmental Protection Technology Series Research Center Office of Research ami Development U.S. Environmental Protection Agency Cincinnati, Ohio 45268 ------- EPA-670/2-75-050b June 1975 DIRECT FILTRATION OF LAKE SUPERIOR WATER FOR ASBESTIFORM FIBER REMOVAL Appendix A Weather and Lake Level Data, Water Quality Data, and Raw Water Pumping Schedule By Black § Veatch, Consulting Engineers Kansas City, Missouri 64114 Program Element No. 1CB047 Contract No. DACW 37-74-C-0079 Interagency Agreement EPA-IAG-D4-0388 USEPA, Region V and Corps of Engineers, St. Paul Project Officer Gary S. Logsdon Water Supply Research Laboratory National Environmental Research Center Cincinnati, Ohio 45268 NATIONAL ENVIRONMENTAL RESEARCH CENTER OFFICE OF RESEARCH AND DEVELOPMENT U.S. ENVIRONMENTAL PROTECTION AGENCY CINCINNATI, OHIO 45268 LIBRARY U. S. ENYI;*:.V/»NT/s: F. . ,.i AGEfi'Clf EDISON, ;i J. ------- REVIEW NOTICE The National Environmental Research Center -- Cincinnati has reviewed this report and approved its publication. Approval does not signify that the contents necessarily reflect the views and policies of the U.S. Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. ii ------- FOREWORD Man and his environment must be protected from the adverse effects of pesticides, radiation, noise and other forms of pollution, and the unwise management of solid waste. Efforts to protect the environment require a focus that recognizes the interplay between the components of our physical environment -- air, water, and land. The National Environmental Research Centers provide this multidisciplinary focus through programs engaged in • studies on the effects of environmental contaminants on man and the biosphere, and • a search for ways to prevent contamination and to recycle valuable resources. This report and its appendices present the results of pilot plant filtration research for the removal of asbestiform fibers from drinking water. The several appendices present detailed information on water quality, pilot plant equipment and operation, individual filter run data, asbestiform fiber and amphibole mass concentrations in raw and filtered water, and diatomite filter optimization. Appendix A contains water quality data. A. W. Breidenbach, Ph.D. Director National Environmental Research Center, Cincinnati 111 ------- ABSTRACT Pilot plant research conducted in 1974 at Duluth, Minnesota, demonstrated that asbestiform fiber counts in Lake Superior water could be effectively reduced by municipal filtration plants. During the study, engineering data were also obtained for making cost estimates for construction and operation of both granular and diatomaceous earth (DE) filtration plants ranging in size from 0.03 to 30 mgd. This appendix contains a portion of the data collected in the study. The following categories of information are presented in Appendix A: Weather and lake level data Operating schedule for pumps at the pumping station Chemical and physical quality parameters of raw and filtered water Dissolved oxygen content of raw and finished water Bacteriological data for raw and finished water. iv ------- CONTENTS Appendix Page A-l Weather and Lake Level Data, Duluth Lakewood Pumping Station, 1974 1 A-2 Raw Water Pumping Schedule, Duluth Lakewood Pumping Station, 1974 7 A-3 Raw and Effluent Water Sample Parameters, Duluth Lakewood Pumping Station, 1974 16 A-4 Dissolved Oxygen Data, Duluth Lakewood Pumping Station Raw and Finished Water, 1974 53 A-5 Bacteriological Data, Duluth Lakewood Pumping Station Raw and Finished Water 1974 55 ------- APPENDIX A-l WEATHER AND LAKE LEVEL DATA, DULUTH LAKEWOOD PUMPING STATION MONTH OF APRIL, 1974. Date High Wind Precip. Wind Lake Notes temp., veloc., in. dir.a level °F mpha ft c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 36 7 0 NE 600.77 Ice on lake. 20 21 22 39 3 0.40 NE 600.7 Ice starting to breakup, 23 41 3 ON 600.72 Small patches of ice. 24 38 6 T NE 600.85 Very little ice. 25 47 8 0 NE 600.83 Ice along north shore. 26 52 12 0 SE 600.91 Ice along north shore. 27 28 29 57 5 0.02 SW 600.85 Ice on lake. 30 60 8 0 NW 600.80 Ice on lake. 31 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipitation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-l (CONTINUED) MONTH OF MAY, 1974. Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 High temp. , °F 36 61 51 40 35 40 43 39 50 50 43 37 52 44 60 54 52 49 60 68 58 60 64 52 45 50 50 50 65 Wind veloc. , mpha 15 10 8 12 20 15 4 8 15 20 8 8 5 7 6 18 20 8 3 7 18 8 10 5 10 5 7 7 10 Precip. , in.b T 0.42 T 0 0 0 T 0.35 0.55 0.03 0.28 0.32 0 0 0 0 0 T 0.36 0 T 0.02 0 0 0.02 T 0.01 0.62 T Wind dir.a NE SW NW NE E E E E SW NW NE NE SE NE N E E NE E SW SW NW NW SE NE NE E E SW Lake Notes level ft.c 601.11 Ice piled near shore. 600.95 Ice on lake. 600.80 Ice on lake. 600.97 601.10 White caps @ 1400 hrs. 601.03 600.98 601.12 601.28 600.88 601.13 601.15 601.06 601.18 601.08 601.22 601.32 601.30 601.17 601.06 601.00 601.01 601.10 601.17 601.23 601.23 601.18 601.24 601.07 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipitation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-l (CONTINUED) MONTH OF JUNE, 1974. Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 High temp. , °F 60 62 59 68 55 56 53 68 54 68 65 67 58 74 52 56 54 68 68 58 60 54 52 64 56 67 65 64 73 76 Wind veloc. , mpha 3 8 3 3 10 10 3 5 15 8 15 12 5 10 18 18 5 10 7 8 8 12 10 8 5 3 8 8 12 20 Precip. , in.b T 0.05 0.12 0.37 0 1.26 T 0 1.22 0.33 0.02 T 0 0.23 0.04 T T T 0 T 0 0 0 0 0 0 0 0 0.43 0 Wind dir.a SE SW W SE E E NE S NE NW NW NW E NW NW NW NW SW SW NE NE NE E E NE E E NE SW SW Lake Notes level ftc 601.19 601.22 601.31 601.26 601.39 601.44 601.28 601.32 601.52 601.30 601.33 601.36 601.46 601.48 601.32 601.31 601.44 601.54 601.49 601.52 601.51 601.50 601.50 601.52 601.52 601.53 601.57 601.58 601.52 601.40 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipitation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-l (CONTINUED) MONTH OF JULY, 1974. Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 High temp. , °F 65 60 66 70 79 64 72 68 72 57 55 59 62 79 60 63 79 65 62 54 79 62 60 82 72 78 72 62 63 Wind veloc. , mpha 8 8 15 8 12 10 10 8 18 18 12 4 15 15 10 8 12 10 15 12 7 8 8 8 8 10 15 15 10 8 Precip. , in.b 0.03 0 0.14 0 T T 0 0.04 T 0 0 0.12 0.40 0 0 0.02 0.15 T 0.25 0 3.40 0 0 0.29 0 T T T 0.01 T 0 Wind dir.a E NE W NW SW SW SW SW E E E E NW W NE SE SW NW NE E E SW E NE SW W W W NW NW Lake Notes level ftc 601.56 601.61 601.63 601.50 601.66 601.69 601.71 601.71 601.76 601.85 601.82 601.75 601.67 601.58 601.68 601.73 601.79 601.65 601.75 601.80 601.79 601.71 601.75 601.84 601.76 601.64 601.53 601.51 601.54 601.54 601.62 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipitation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-l (CONTINUED) MONTH OF AUGUST, 1974. Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 High temp. , °F 67 58 56 74 74 75 72 66 66 63 63 75 64 64 68 73 74 68 68 76 72 64 62 62 75 68 67 62 61 64 58 Wind veloc. , mpha 3 8 5 5 5 5 3 8 15 12 5 10 8 15 5 7 8 5 Calm 12 5 7 5 15 10 15 10 0 15 12 10 Precip. , in." 0.40 1.23 0.25 T T 0 0.02 0 0 0.45 0.07 0.07 0.04 T T 0 0.01 T 0 0.01 0.05 T T T 0.95 T 0 0.09 0 0.13 0.02 Wind dir.a W NE NE NW W SW SE E E NE SW NW NE NE E SW W S SE SW W NE NE S W W - W W W Lake Notes level ftc 601.72 601.84 601.76 601.72 601.78 601.80 601.82 601.85 601.93 602.08 601.93 601.81 601.86 602.04 601.99 601.84 601.85 601.87 601.94 602.03 601.96 601.82 601.88 601.99 602.02 601.78 601.79 601.92 601.75 601.82 601.68 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipitation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-l (CONTINUED) MONTH OF SEPTEMBER, 1974. Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 High temp., °F 58 55 62 60 59 55 56 62 53 52 66 49 52 64 60 66 56 71 62 57 Wind veloc . , mpha 5 8 7 0 7 10 5 7 10 10 10 10 15 12 10 10 7 10 8 10 Precip. , in.b T T 0 0 0 0.02 0.13 0.02 0.01 0.01 0.17 0.18 T 0 0 0.02 0 0 0.03 0.01 Wind dir.a W NW SW — E E SE NW E E SW E W SW NW SW NE SW SW SW Lake Notes level £t.c 601.82 601.79 601.74 601.82 601.88 601.93 601.89 601.76 601.89 602.03 601.84 601.85 601.73 601.83 601.75 601.79 601.88 601.89 601.80 601.84 a Wind velocities and direction are from Lakewood pumping station records and are not official. The values are based on observations by the plant operators. b Precipation values are from U.S. Weather Bureau at Duluth Inter- national Airport. c International Great Lakes Datum. ------- APPENDIX A-2 RAW WATER PUMPING 1974. SCHEDULE, DULUTH LAKEWOOD PUMPING STATION, Time Date 4-19 4-22 4-23 4-24 4-25 4-26 4-29 4-30 5-1 5-2 5-3 5-6 5-7 5-8 5-9 5-10 Start 0830 2130 0830 1200 2400 0830 2200 0830 0800 0740 0830 1500 0800 0830 2400 0830 2400 0830 0615 0830 0800 0830 1000 0100 0830 2400 0830 0800 0830 0745 0830 0750 Stop 2000 2400 0500 2100 0830 1530 0830 2400 0830 0830 1540 2400 0830 2000 0830 1900 0830 2400 0830 2345 0830 0900 1700 0830 1700 0830 1200 0830 2345 0830 2345 0830 Total hours of pumping 11.5 2.5 20.5 9.0 8.5 7.0 10.5 15.5 0.5 0.5 7.16 5.00 0.5 11.5 8.5 10.5 8.5 15.5 2.25 15.25 0.5 0.5 7.0 7.5 8.5 8.5 15.5 0.5 15.25 0.75 15.25 0.67 Total Volume pumped, 1,000 gal. 13280 19530 16580 16480 15180 15300 11950 18850 18080 16860 14870 14070 16080 15290 15200 15170 ------- A-2 Date 5-11 5-12 5-13 5-14 5-15 5-16 5-17 5-18 5-19 5-20 5-21 5-22 5-23 5-24 5-25 5-26 5-27 Time Start 0830 0730 0830 0830 0025 0830 0530 0830 0745 0830 1345 0830 0830 0830 0000 0830 1420 0000 0830 0740 0830 0730 0830 0830 0800 0830 1200 0000 Stop 2345 0830 0830 1800 0830 2300 0830 2345 0830 2345 0830 2345 0700 1530 0830 1230 2000 0830 2400 0830 2345 0830 2345 2345 0830 0810 1900 0830 Total hours of pumping 15.25 1.00 24.0 9.5 8.083 14.5 3.0 15.25 0.75 15.25 18.75 15.25 22.5 7.0 8.5 4.0 5.66 8.5 15.5 0.33 15.25 1.00 15.25 15.25 0.5 23.66 7.0 8.5 Total Volume pumped, 1,000 gal. 15380 22900 16580 16680 15070 14480 18090 14400 21550 14380 17200 15600 15430 14440 14880 22660 14520 ------- APPENDIX A-2 (CONTINUED) Date 5-28 5-29 5-30 5-31 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 6-9 6-10 6-11 Time Start 0830 0000 0830 1800 0830 0745 0830 0800 0830 0800 0830 1430 0830 0000 0415 0830 0000 0830 0800 0830 0745 0830 0620 0830 0720 0830 0830 2400 0830 0620 Stop 1800 0830 1520 2400 2345 0830 2345 0830 2345 0830 1330 0830 1900 0330 0830 2030 0830 2400 0830 2345 0830 2345 0830 2345 0830 0830 1800 0830 2400 0830 Total hours of pumping 9.5 8.5 6.83 6.0 15.25 0.75 15.25 0.5 15.25 0.5 5.0 18.0 10.5 3.5 4.25 12.0 8.5 15.5 0.5 15.25 0.75 15.25 2.14 15.25 1.14 24.0 9.5 8.5 15.5 2.14 Total Volume pumped , 1 , 000 gal . 17150 12890 15140 14910 14990 22140 17120 19490 15340 15310 16620 15750 23090 16980 17000 ------- APPENDIX A-2 (CONTINUED) Date 6-12 6-13 6-14 6-15 6-16 6-17 6-18 6-19 6-20 6-21 6-22 6-23 6-24 6-25 6-26 6-27 6-28 6-29 Time Start 0830 0630 0830 0745 0830 2350 0830 0800 0830 0830 2400 0830 2400 0830 0610 0830 0830 0800 0830 0830 0830 2400 0830 0830 0830 1545 0830 0830 0800 Stop 2400 0830 2345 0830 2145 0830 2345 0830 0830 1700 0830 1900 0830 2400 0830 0830 2345 0830 2345 0830 2100 0830 0830 0830 1515 0830 0715 0510 0830 Total hours of pumping 15.5 2.0 15.25 0.75 13.25 8.67 15.25 0.5 24.0 8.5 8.5 10.5 8.5 15.5 2.33 24.0 15.25 0.5 15.25 24.0 12.5 8.5 24.0 24.0 6.75 16.75 22.75 20.67 0.5 Total Volume pumped, 1,000 gal. 16540 15230 20900 14990 22920 16050 18080 17040 22970 14920 14720 23010 20050 22980 22850 22320 21700 20050 10 ------- APPENDIX A-2 (CONTINUED) Date 6-30 6-31 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 7-10 7-11 7-12 7-13 7-14 7-15 Time Start 0830 0625 0830 2045 0830 2045 0830 0830 0630 0830 2100 0830 0045 0830 0800 0830 0830 0830 0830 0830 0830 2230 0830 2100 0830 1410 0830 1945 Stop 0500 0830 1745 0715 1745 0715 0630 0230 0830 1430 0830 2200 0830 2345 0830 0830 0830 0830 0830 0830 2030 0830 1910 0830 1015 0830 1730 0830 Total hours of pumping 20.5 2.09 9.67 10.5 9.67 10.5 22.0 18.0 2.0 6.0 11.5 13.5 7.75 15.25 0.5 24.0 24.0 24.0 24.0 24.0 12.0 10.0 10.67 11.5 1.75 18.33 9.0 12.75 Total Volume pumped , 1 , 000 gal . 21280 18730 18730 20910 19090 16410 20160 14800 22910 23120 23120 22920 22850 22850 20830 21140 19110 20570 11 ------- APPENDIX A-2 (CONTINUED) Date 8-2 8-3 8-4 8-5 8-6 8-7 8-8 8-9 8-10 8-11 8-12 8-13 8-14 8-15 8-16 8-17 8-18 Time Start 0830 0730 0830 0715 0830 0830 2400 0830 0820 0830 0715 0830 0830 1945 0800 0830 0800 0830 0830 0700 0830 0925 0830 2100 0830 1830 0830 0800 0830 Stop 2400 0830 2345 0830 0830 2000 0830 0700 0830 0330 0830 0830 1900 0115 0830 2345 0830 0700 0300 0830 0500 0830 1700 0830 1730 0400 2345 0830 0830 Total hours of pumping 15.5 1.0 15.25 1.25 24.0 11.5 8.5 22.5 0.166... 19.0 1.25 24.0 10.5 5.5 0.5 15.25 0.5 22.5 18.5 1.5 20.5 23.083... 8.25 11.5 9.0 9.5 15.25 0.5 24.0 Total Volume pumped, 1,000 gal. 15630 15630 23080 19090 21470 19180 22730 15630 14920 21570 18940 19560 21980 19080 17620 14920 22850 12 ------- APPENDIX A-2 (CONTINUED) Date 7-16 7-17 7-18 7-19 7-20 7-21 7-22 7-23 7-24 7-25 7-26 7-27 7-28 7-29 7-30 7-31 8-1 Time Start 0830 2030 0830 0100 0830 0830 0830 1700 0830 1400 0830 2000 0830 1400 0830 0600 0830 0830 0830 0730 0830 0830 2400 0830 2130 0830 0630 0830 0745 Stop 1830 0830 2400 0830 0830 0830 1600 0830 0900 0830 1715 0600 1215 0830 0100 0830 0830 0830 2345 0830 0830 2155 0830 1930 0830 0500 0830 0400 0830 Total hours of pumping 10.0 12.0 15.5 7.5 24.0 24.0 7.5 15.5 0.5 18.5 8.75 10.0 3.75 18.5 16.5 2.5 24.0 24.0 15.25 1.0 24.0 13.41 8.5 11.0 11.0 20.5 2.5 19.5 0.75 Total Volume pumped , 1 , 000 gal . 20800 21740 22930 22850 21970 17950 17850 20820 17600 22290 22560 15210 22950 20730 20790 21260 19000 13 ------- APPENDIX A-2 (CONTINUED) Date 8-19 8-20 8-21 8-22 8-23 8-24 8-25 8-26 8-27 8-28 8-29 8-30 8-31 9-1 9-2 9-3 9-4 9-5 Time Start 0830 0100 0830 1015 0830 2400 0800 0830 0630 0830 0815 0830 0040 0830 0830 0830 1300 1200 1030 0830 0800 0830 1130 1030 0830 1700 1100 Stop 2100 0830 0730 0830 2100 0500 0830 2400 0830 2400 0830 2225 0830 0300 0830 0900 0615 0815 2400 2345 0830 0400 0130 0830 1200 0400 0830 Total hours of pumping 12.5 7.5 23.0 22.25 12.5 5.0 0.5 15.5 2.0 15.5 0.25 13.91 7.83 18.5 24.0 0.5 17.25 20.25 13.5 15.25 0.5 19.5 14.0 22.0 3.5 11.0 21.5 Total Volume pumped, 1,000 gal. 18940 21780 21400 17050 16500 14920 20700 17540 22750 16830 19200 12790 14920 18480 13270 20850 13740 20380 14 ------- Date 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 9-15 9-16 9-17 9-18 9-19 9-20 Time Start 0830 1830 0800 0830 0830 0830 1830 1200 1200 1200 0900 0830 0800 0830 2115 0830 0830 0830 0745 0830 Stop 1630 2400 0830 2345 0830 1130 0630 0600 0830 0215 2400 2345 0830 0800 0830 0830 1530 0900 0830 0830 Total hours of pumping 8.0 5.5 0.5 15.25 24.0 3.0 12.0 18.0 20.5 14.25 15.0 15.25 0.5 23.5 11.25 24.0 7.0 0.5 0.75 24.0 Total Volume pumped, 1,000 gal. 13260 14450 22790 14210 17060 19420 13500 13700 14920 22280 10480 22730 15660 990 22730 15 ------- APPENDIX A-3 RAW AND EFFLUENT WATER SAMPLE PARAMETERS, DULUTH LAKEWOOD PUMPING STATION, 1974 Date 5-14 5-16 5-17 Unit Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 MM-2 BIF ERD-2 Run 6 36 7 10 6 36 7 10 6 37 7 37 8 10 8 38 8 10 11 8 38 9 11 9 10 39 9 11 10 39 40 9 12 Turb, FTU 1.20 0.27 0.19 0.29 0.40 0.23 0.21 0.30 0.30 0.17 0.14 0.15 0.10 0.16 0.14 0.93 0.17 0.24 0.28 0.43 0.35 1.4 0.16 0.11 0.54 0.38 0.11 0.18 0.12 0.55 0.25 0.79 0.25 0.11 0.20 0.22 0.34 pH 7.80 7.40 7.05 7.80 7.70 7.00 7.00 7.80 7.65 7.10 7.15 7.00 7.00 7.80 7.80 7.10 7.00 7.20 7.90 7.80 7.20 7.70 7.20 7.20 7.60 7.60 7.25 7.20 7.25 7.85 7.75 7.90 7.30 7.20 7.25 7.80 7.8+ Temp, °F 33 37 37 37 37 33 34 37 37 37 34 34 38 38 38 38 37 37 36 37 33 37 39 35 37 38 Alk, mg/1 42 32 33 42 42 32 33 41 41 31 33 33 32 41 40 38 32 33 39 39 38 40 31 32 40 40 34 35 34 42 42 43 35 34 35 42 42 Hardness mg/1 Mumi- num, mg/1 Iron, mg/1 16 ------- APPENDIX A-3 (CONTINUED) Date 5-18 5-20 5-21 5-22 Unit Raw MM-1 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 Run 10 11 40 9 12 12 41 10 13 12 41 10 13 13 41 10 13 14 14 42 10 13 15 42 11 13 15 43 11 13 16 Turb, FTU 1.3 0.14 0.43 0.24 0.35 0.25 0.74 0.28 0.53 0.26 0.34 0.15 0.11 0.40 0.15 0.19 0.08 0.34 0.17 0.20 0.84 0.27 0.35 0.32 0.19 0.22 0.08 0.18 0.17 0.25 0.20 0.20 0.09 0.30 pH 7.85 7.2 7.25 7.2+ 7.85 7.8+ 7.9 7.8 7.5 7.85 7.9+ 7.35 7.25 7.9+ 7.9 7.25 7.2+ 7.85+ 7.85 7.3 7.8+ 7.3 7.2+ 7.85+ 7.8 7.3 7.2 7.85 7.75 7.50 7.28 7.95 7.90 7.39 Temp, °F 33 38 34 35 37 38 34 35 38 35 36 36 35 35 35 37. J 38 32 35 34 35 36 34 35 35 35 36 35 34.. 34 34.! 34.! Alk, mg/1 43 33 34 34 42+ 41+ 42 36 38 42 42 35 34 42 42 35 34 42 42 35 42 36 34 42 43 38 36 42 40 33 32 39 39 33 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 17 ------- APPENDIX A-3 (CONTINUED) Date 5-23 5-24 Unit MM-1 BIF ERD-2 MM-1 MM-2 Raw MM-1 Raw MM-1 BIF Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 ERD-2 MM-1 Raw MM-1 MM-2 BIF ERD-2 BIF MM-1 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Run 16 11 13 17 43 17 17 11 18 44 12 13 18 44 12 13 19 45 13 19 20 45 12 13 12 20 21 46 13 13 21 46 13 13 Turb, FTU 0.42 0.46 0.18 0.50 0.13 0.90 0.45 0.82 0.25 0.20 1.5 0.30 0.10 0.09 0.11 0.25 0.15 0.29 0.20 0.35 0.15 0.16 0.47 1.0 0.20 0.15 0.40 0.16 1.6 0.16 0.18 0.14 0.40 0.18 0-15 0.10 0.30 0.19 PH 7.38 7.90 7.88 7.40 7.20 7.90 7.35 7.80 7.38 7.90 7.80 7.39 7.35 7.85 7.90 7.55 7.20 7.85 7.85 7.40 7.25 7.80 7.35 8.00 7.30 7.40 8.05 8.00 7.99 7.39 7.38 7.30 7.90 7.95 7.30 7.22 7.63 7.71 Temp, °F 36 34.5 35 34.5 36 34 36 36 35 34.5 35 36 35 35 34.5 34.5 34.5 34.5 32 35 35.5 37.5 35 35.5 35 35 35 35 35 35 35 35 Alk, mg/1 33 39 39 33 32 40 33 39 33 39 40 34 34 39 38 35 32 38 39 33 33 38 32 42 33 34 40 40 39 32 32 31 40 40 32 30 38 38 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 18 ------- APPEM Date 5-25 5-28 5-29 IX A-T (T.ONTTNTTED) Unit MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 Raw BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw BIF MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-2 MM-1 MM-2 BIF ERD-2 Raw Run 22 47 13 13 22 47 14 13 22 47 14 13 23 48 15 14 15 23 45 16 14 24 48 16 14 49 24 49 16 14 Turb, FTU 0.13 0.21 0.31 0.24 0.87 0.13 0.11 0.45 0.20 0.75 0.08 0.90 0.35 0.27 0.13 0.10 0.95 0.28 0.84 0.56 0.34 0.23 0.22 0.18 0.20 0.90 0.45 0.27 0.95 0.26 0.57 0.11 0.30 0.16 0.93 PH 7.38 7.30 7.98 7.98 7.99 7.35 7.34 7.97 7.99 7.30 7.25 7.50 7.99 7.50 7.45 7.40 7.80 7.95 7.55 7.98 7.45 7.40 7.91 7.90 7.51 7.40 8.00 7.99 8.10 7.45 7.35 7.21 7.65 7.87 7.81 Temp, °F 34.5 35 35 35.5 35 35 35 35 35 35 35 35 35 36 35 35 35 35 36 35.5 36 36 36 35.5 35 35 36.5 36.5 35 Alk, mg/1 31 32 40 39 40 31 32 40 39 32 31 37 40 37 35 31 39 40 42 38 33 34 40 38 34 33 43 42 40 34 36 35 43 43 44 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 19 ------- APPENDIX A-3 (CONTINUED) Date 5-30 5-31 Unit MM-1 MM-2 BIF ERD-2 MM-1 MM-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 MM-1 BIF ERD-2 BIF MM-1 MM-2 BIF ERD-2 MM-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-1 MM-2 BIF Raw MM-1 MM-2 BIF Raw Run 24 49 17 14 25 49 25 50 17 14 25 50 26 17 14 17 26 50 18 14 50 26 51 18 14 27 27 51 18 27 51 18 Turb, FTU 1.50 0.09 0.13 0.15 0.10 0.83 0.10 0.09 0.21 0.17 0.76 0.08 0.08 0.15 0.34 0.15 0.33 0.13 0.06 0.18 0.15 0.50 0.16 0.36 0.24 0.18 0.80 0.28 0.16 0.32 0.24 0.89 0.11 0.36 0.19 0.75 pH 7.20 7.09 7.72 7.62 7.21 7.42 7.47 7.35 7.85 7.90 7.71 7.49 7.39 7.48 7.93 7.90 7.72 7.16 7.08 7.70 7.60 7.15 7.09 7.18 7.34 7.42 7.39 7.20 7.45 7.40 7.80 7.90 7.45 7.41 7.91 7.90 Temp, °F 35 36 36 35 35 35.5 37 37 36.5 35 36.5 37 35 35.5 36.5 35 35 35 Alk, mg/1 36 35 42 42 37 33 37 34 40 43 42 35 37 37 43 43 43 37 36 43 43 36 33 36 40 40 40 36 39 39 43 43 39 39 43 43 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 20 ------- APPENDIX A-3 (CONTINUED) Date 6-1 6-3 6-4 6-5 Unit Raw MM-1 MM- 2 BIF MM-1 MM- 2 BIF ERD-2 Raw Raw MM-1 MM- 2 BIF ERD-2 MM- 2 MM-1 BIF ERD-2 Raw MM-1 MM- 2 BIF ERD-2 Raw MM-1 MM- 2 BIF ERD-2 BIF MM-1 Raw MM- 2 BIF ERD-2 Run 27 51 18 28 52 19 15 28 52 19 15 52 28 19 15 29 53 19 15 29 53 19 15 19 29 53 20 15 Turb, FTU 0.84 0.10 0.50 0.26 0.15 0.10 0.20 0.55 0.77 0.80 0.09 0.15 0.19 0.18 0.08 0.10 0.15 0.15 0.80 0.14 0.12 0.15 0.13 0.77 0.10 0.07 0.18 0.16 0.15 0.07 0.85 0.08 0.33 0.14 PH 7.75 7.30 7.45 7.85 7.45 7.35 7.80 7.43 7.91 7.88 7.48 7.42 7.70 7.60 7.44 7.40 7.70 7.65 8.00 7.40 7.50 8.05 7.90 8.00 7.55 7.50 8.00 7.95 7.99 7.40 8.00 7.45 8.00 7.95 Temp, °F 36 36.5 36.5 36.5 37 36.5 Alk, mg/1 43 39 39 43 39 38 42 40 43 40 35 37 41 41 38 35 41 41 42 35 36 41 38 42 34 35 40 38 41 35 41 35 37 39 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 21 ------- APPENDIX A-3 (CONTINUED) Date 6-6 6-7 Unit BIF Raw MM-1 MM-2 ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-1 MM-2 BIF ERD-2 Raw ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 Mrl~^ BIF Raw Raw Raw BIF MM-1 MM-1 MM-2 BIF Raw MM-1 MM-2 BIF Run 20 30 54 15 30 54 20 15 30 31 54 20 15 15 31 54 20 15 31 54 20 20 31 32 54 21 32 54 21 Turb, FTU 0.28 0.75 0.08 0.15 0.14 0.10 0.09 0.19 0.14 0.69 0.05 0.12 0.06 0.18 0.15 0.75 0.24 0.74 0.09 0.05 0.20 0.12 0.11 0.09 0.15 0.68 2.2 4.6 0.50 0.13 0.15 0.07 0.63 2.8 0.15 0.07 0.52 PH 7.99 8.00 7.45 7.55 7.60 7.40 7.60 8.00 7.85 8.05 7.55 7.60 7.50 7.90 7.95 8.00 7.90 8.05 7.55 7.50 8.00 7.90 7.45 7.50 7.99 8.00 8.40 8.00 7.95 7.49 7.45 7.50 7.90 8.00 7.55 7.50 7.95 Temp, °F 37 37 37 36.5 40 37.5 39 38 37 37 37 34 37 38 35 33 33 35 34 Alk, mg/1 42 42 36 38 41 34 37 42 38 43 34 35 34 40 39 42 39 42 35 34 40 39 33 35 39 40 42 43 39 34 34 34 38 42 35 34 40 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 22 ------- 'APPENDIX A-3 (CONTINDED) Date 6-8 6-10a 6-11 Unit MM-1 MM-2 BIF Raw MM-1 MM-2 BIF Raw MM-1 MM-2 BIF Raw ERD-2 ERD-2 MM-1 MM-2 BIF Raw MM-1 MM-2 BIF ERD-2 MM-1 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-1 MM-1 MM-2 BIF ERD-1 MM-2 Run 32 54 21 32 54 21 33 55 22 17 17 34 55 22 33 55 23 18 33 23 18 34 55 24 1 34 55 25 1 56 Turb, FTU 0.09 0.04! 0.31 2.0 0.23 0.08 0.31 1.6 0.43 0.42 0.88 5.6 4.9 6.1 0.13 0.12 0.70 3.5 0.14 0.10 0.60 6.3 0.96 0.56 6.30 1.90 0.25 0.06 0.50 0.56 0.12 0.11 0.49 0.19 0.23 pH 7.60 7.45 7.95 7.99 7.55 7.50 7.95 8.00 6.30 6.50 7.20 7.35 7.35 7.30 7.42 7.38 7.60 7.55 6.60 6.60 7.00 6.90 6.52 7.00 7.00 7.00 6.50 6.49 7.00 7.00 6.50 6.50 7.06 6.90 6.60 Temp, °F 37.5 39.5 38 37 37.5 39 38 38 39.5 38.5 37.5 39 37 37.5 37.5 38 37.5 34 36 34 35 38 38 38 37.5 38 39 37.5 38.5 37.5 37 37.5 39.5 Alk, mg/1 37 33 39 42 36 33 39 42 36 37 39 42 40 41 36 37 39 41 37 36 42 42 37 42 42 42 36 37 42 42 37 37 43 42 37 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 23 ------- APPENDIX A-3 (CONTINUED) Date 6-12 6-13 6-14 Unit MM-1 MM- 2 BIF ERD-1 Raw MM-1 MM-2 BIF ERD-1 Raw BIF MM-2 Raw MM-2 BIF ERD-1 MM-1 MM-2 BIF ERD-1 MM-1 MM-1 MM-2 BIF ERD-1 Raw MM-1 Raw MM-1 MM-2 BIF 2RD-1 MM-1 MM-2 BIF MM-2 Run 34 56 25 1 35 56 25 1 25 56 57 26 1 35 57 26 1 36 36 57 28 1 36 37 58 28 2 37 58 28 59 Turb, FTU 0.16 0.17 2.2 0.35 4.3 0.13 0.08 0.74 0.19 2.6 0.60 0.11 2.3 0.90 0.70 0.09 0.09 0.15 0.55 0.32 0.20 0.08 0.39 0.66 0.14 2.1 0.06 2.0 0.40 0.10 0.55 0.50 0.35 0.10 0.55 0.15 PH 6.60 6.50 7.10 6.95 7.20 6.80 6.90 7.35 7.10 7.35 7.55 7.15 7.45 7.40 7.30 7.10 6.90 6.66 6.89 6.98 6.59 6.90 6.99 7.35 7.35 7.35 6.78 7.50 6.95 6.99 7.40 7.05 6.84 6.30 6.82 6.73 Temp, °F 37.5 39 38 37.5 38 38.5 41 38.5 39 37.5 42.5 42.5 38 41 41 42 39.5 38 39.5 39 39 40 40 37.5 42 38 42 41 41 41 40 Alk, mg/1 37 35 42 41 43 37 35 38 40 40 41 35 42 38 37 39 36 36 41 41 35 35 36 40 42 41 34 42 37 36 40 41 40 36 41 36 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 24 ------- APPENDIX A-3 (CONTINUED) Date 6-15 6-17 6-18 Unit MM-1 MM-2 BIF ERD-1 Raw MM-1 MM-2 BIF MM-1 MM-2 BIF, ERD-1 Raw Raw MM-1 MM-2 BIF ERD-1 MM-1 MM-2 BIF ERD-1 Raw MM-1 MM-1 MM-2 BIF SRD-1 Raw 3RD-1 Raw MM-1 MM-2 BIF SRD-1 MM-1 MM-2 BIF ERD-1. Run 37 59 29 3 38 59 29 38 60 30 3 39 61 31 4 39 61 31 4 39 40 62 32 4 4 40 62 32 5 40 63 32 5 Turb, FTU 0.38 0.12 0.34 0.28 1.9 0.16 0.13 0.37 0.10 0.15 0.40 0.11 1.6 0.95 0.08 0.11 0.61 0.13 0.11 0.21 0.26 0.15 0.90 0.16 0.14 0.21 0.22 0.14 0.93 0.11 1.10 0.08 0.45 0.19 0.45 0.85 0.16 0.12 o.in pH 7.00 6.60 6.92 6.80 7.19 6.60 6.75 7.05 6.51 6.63 6.59 6.90 7.05 7.92 7.35 7.49 7.80 7.70 7.23 7.32 7.60 7.62 7.90 7.30 7.49 7.79 8.00 7.90 8.26 8.39 7.85 7.40 7.55 8.00 7.92 7.40 7.62 7.91 7.QO Temp, "F 40 41 39.5 40.5 38 40 39 39 36 38 36 36 36 38 38.5 38.5 38.5 39 38.5 38.5 38.75 39 38 37.5 39.5 39 38.5 40 38 39.5 38 39 39 39 39 38.5 38.5 39 Alk, mg/1 41 35 39 40 41 36 36 41 36 38 43 43 42 44 35 39 42 41 33 34 38 40 43 34 37 39 45 42 42 42 43 35 39 43 42 35 39 43 43 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 25 ------- APPEND] Date 6-19 6-20 6-21 pJ^jLTlICONTINUED^ Unit MM-2 BIF ERD-1 Raw MM-2 MM-1 MM-2 BIF ERD-1 Raw MM-2 BIF MM-1 MM-2 BIF ERD-1 MM-2 MM-1 MM-2 BIF Raw MM-2 MM-1 MM-2 BIF ERD-2 BIF MM-2 BIF ERD-2 MM-1 MM-2 MM-1 MM-2 BIF ERD-2 Raw Run 63 33 5 64 41 64 33 6 64 33 41 65 34 6 65 41 66 34 66 42 67 34 19 34 67 35 20 42 68 42 68 35 20 Turb, FTU 0.14 0.25 0.10 0.89 0.20 0.09 0.22 0.18 0.13 0.93 0.11 0.15 0.08 0.07 0.30 0.08 0.11 0.09 0.13 0.22 0.83 0.14 0.16 0.12 0.25 0.30 0.15 0.12 0.15 0.09 0.10 0.08 0.08 0.10 0.22 0.16 1.30 PH 7.55 8.05 8.05 8.00 7.58 7.40 7.56 7.88 7.92 7.98 7.10 7.92 7.25 7.20 8.00 7.80 7.33 7.20 7.20 8.00 8.10 7.15 7.25 7.15 8.00 7.85 8.00 7.21 7.60 8.05 7.67 7.80 7.40 7.45 7.99 7.41 8.00 Temp, °F 39 38.5 39 38 39 39 39 39 39 38 39 39 38.5 38.5 39 38 40 38 38 39 39 39 38 39 38 39 38 38.5 38 39 39 39 38.5 39.5 38 Alk, mg/1 39 42 42 42 38 35 39 43 42 42 43 43 36 36 43 43 34 37 36 45 43 36 38 36 43 41 43 36 43 43 36 39 35 37 43 43 43 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 26 ------- APPENDIX A-3 (CONTINUED) Date 6-22 6-24 6-25 Unit ERD-2 BIF Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw BIF MM-2 MM-1 MM-2 BIF ERD-2 Raw Run 20 35 42 69 36 21 42 69 36 21 43 70 43 70 36 21 44 71 37 22 44 71 37 22 38 71 44 7 38 23 Turb, FTU 0.22 0.21 1.30 0.06 0.16 0.20 0.09 0.10 0.15 0.15 0.10 0.12 0.18 0.07 0.20 0.25 0.11 0.98 0.70 0.09 0.12 0.16 0.06 0.08 0.11 0.14 0.07 0.67 0.16 0.11 0.10 0.11 0.21 0.11 0.62 pH 8.05 7.48 7.95 7.35 7.60 7.80 7.95 7.40 7.55 8.15 8.11 7.65 7.50 7.40 7.50 7.85 7.15 7.75 7.90 7.35 7.50 7.90 7.85 7.48 7.60 8.00 7.95 8.05 7.95 6.85 7.50 7.65 7.95 7.70 8.00 Temp, op 39.5 39.5 38.5 38 38.5 38.5 39 39 40 40 39 40 38.5 37 39 41 38.5 38.5 38.5 38.5 38.5 39 38 38.5 39 39.5 39.5 39.5 39.5 39 Alk, mg/1 43 43 43 35 40 43 43 35 40 43 43 37 40 35 34 41 37 40 41 38 39 41 41 36 37 39 42 42 41 38 37 38 40 39 41 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 27 ------- APPENDIX A-3 (CONTINUED) Date 6-26 6-27 - Unit MM-1 MM- 2 BIF Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-2 BIF MM-1 BIF ERD-^2 Raw BIF ERD-2 MM-1 MM-2 Raw MM-1 BIF ERD-2 MM-2 MM-1 BIF ERD-2 Raw BIF ERD-2 MM-1 MM-1 ERD-2 Run 44 73 38 45 73 39 20 45 73 39 24 74 40 45 41 25 41 25 45 75 46 42 26 Clear Well 46 42 26 41 26 46 47 27 Turb, FTU 0.20 0.26 0.14 0.66 0.28 0.16 0.16 0.07 0.11 0.32 0.09 0.10 0.67 1.5 0.18 0.35 0.14 0.08 0.67 0.10 0.05 0.70 0.08 3.00 0.07 0.30 0.07 0.25 0.10 0.13 0.10 0.67 0.11 0.09 0.33 0.14 0.12 PH 7.52 7.52 8.01 8.02 7.50 7.60 8.02 8.00 7.55 7.60 8.00 8.01 7.99 7.60 8.00 7.52 8.00 8.02 8.02 8.10 8.05 7.90 7.60 7.99 7.40 8.02 8.02 7.55 7.50 8.05 8.00 8.10 8.00 7.99 7.45 7.50 8.01 Temp, °F 38.5 38 38.5 38.5 38.5 38.5 39 39 39 40 38.5 39 39 39 39 39 38 41 41 40 40 40 39 39 39.5 38.5 39 39.5 39 39 39.5 Alk, mg/1 35 34 41 41 36 35 40 40 34 35 41 40 40 36 41 35 40 39 41 43 43 35 37 43 34 41 41 37 34 42 40 43 41 40 35 37 40 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 28 ------- APPENDIX A-3 (CONTINUED) Date 6-28 6-29 7-1 Unit MM-1 ERD-2 Raw MM-1 ERD-2 Raw MM-1 Raw MM-1 BIF ERD-2 Raw Cloquet MM- 2 Cloquet BIF Raw Raw Cloquet MM-1 MM-2 Cloquet BIF ERD-2 MM-1 MM-2 Cloquet BIF MM-1 ERD-2 MM-1 BIF ERD-2 Raw MM-1 BIF' ERD-2 Raw Run 47 27 47 28 47 48 46 28 76 46 48 76 47 28 48 76 47 49 29 49 48 29 50 49 30 Turb, FTU 0.14 0.11 0.62 0.33 0.16 0.66 0.65 0.64 0.06 0.33 0.08 2.80 0.10 0.50 0.66 3.00 0.12 0.07 0.20 0.07 0.38 0.13 0.34 0.11 0.11 0.06 0.26 0.13 0.65 0.07 0.21 0.15 0.77 pH 7.40 8.00 8.01 7.45 8.02 8.05 7.47 8.00 7.38 7.97 7.99 7.93 7.40 8.09 8.11 7.95 7.35 7.42 8.05 8.02 7.36 7.45 8.05 7.40 8.00 7.48 8.00 8.10 8.05 7.55 8.07 8.02 8.01 Temp, °F 39 40 39.5 40 39.5 38.5 39.5 39.5 40 42.5 43.5 40 40 41.5 43.5 40.5 41 41.5 43.5 41 41 40.5 40.5 40.5 41.5 40.5 39.5 39.5 39.5 39.5 Alk, mg/1 36 40 42 35 41 42 34 42 34 39 40 40 35 41 41 40 32 34 40 42 34 36 41 35 42 35 41 40 42 36 42 41 42 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 29 ------- APPENI Date 7-2 7-3 - 7-4 »IX A-3 (CONTINUED) Unit MM-1 BIF ERD-2 Raw MM-1 BIF ERD-2 MM-1 BIF ERD-2 Raw BIF MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw BIF Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-1 MM-2 BIF ERD-2 Run 50 49 30 50 49 30 51 49 30 49 51 77 50 30 51 52 77 50 31 52 78 51 32 51 53 78 52 32 53 54 78 52 32 Turb, FTU 0.14 0.33 0.22 0.75 0.30 0.40 0.10 0.15 0.28 0.13 0.61 0.35 0.10 2.5 0.35 0.13 0.85 0.10 0.05 0.10 0.55 0.15 0.08 0.08 0.27 0.17 0.77 0.24 0.85 0.09 0.12 0.32 0.17 0.05 0.09 0.06 0.28 0.14 pH 7.60 8.00 8.04 7.99 7.23 7.60 7.90 7.29 8.02 7.94 8.01 7.85 7.50 7.45 7.90 7.90 7.99 7.48 7.50 7.47 7.91 7.90 7.35 7.50 8.15 7.80 8.00 8.12 8.01 7.40 7.48 8.05 7.85 7.20 6.90 7.33 7.52 7.62 Temp, °F 40 40 39.5 38.5 40 40 39.5 43 42.5 43.5 42 39.5 40 40 40 39.5 39.5 40 40 40 40 40.5 41.5 41 41 40 44.5 41 43.5 43.5 41.5 44 40 41 40 41 Alk, mg/1 35 41 41 42 32 43 43 30 43 44 43 43 32 34 42 42 43 32 32 34 42 42 31 34 42 42 41 41 41 32 34 41 40 32 29 35 41 41 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 30 ------- APPENDIX Ar-3 (CONTINUED) Date 7-4 b b b b b b b b b 7-5 b b b b 7-8 7-9 Unit MM-1 MM-2 BIF EKD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw BIF MM-1 MM-2 BIF ERD-2 MM-1 MM-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 BIF ERD-2 Raw Run 54 79 52 33 55 79 52 33 55 79 52 33 56 80 53 34 53 56 80 54 34 56 80 57 81 54 34 57 54 34 Turb, FTD 0.07 0.09 0.18 0.12 0.59 0.28 0.18 0.44 0.11 0.61 0.12 0.06 0.20 0.09 0.14 0.35 0.05 0.14 0.68 0.30 0.05 0.08 0.25 0.05 0.19 0.09 0.08 0.09 0.20 0.10 0.68 0.07 0.20 0.07 0.67 pH 6.49 6.70 7.15 7.72 7.05 6.51 6.65 7.13 7.00 7.10 6.50 6.67 7.20 7.10 7.30 7.55 7.60 7.93 7.98 7.65 7.15 7.33 7.85 7.86 7.12 7.55 7.15 7.53 8.01 8.08 7.98 6.92 7.30 7.43 7.55 Temp, °F 41.5 41.5 41.5 41.5 41 40.5 41 40.5 41 41 41 41 40.5 40.5 40 40 40 40 39 39 39 39 40 40 40 40.5 40.5 40.5 39.5 39.5 40 40 39.5 Alk, mg/1 31 35 41 40 40 32 35 40 38 40 32 34 40 40 32 37 43 43 43 43 32 39 43 43 31 37 30 38 41 44 43 37 44 44 44 Hardness mg/1 Alumi- num, mg/1 Iron, mg/1 31 ------- APPENDIX A-3 (CONTINUED) Date 7-10 7-11 Unit ERD-2 MM-1 MM-1 MM- 2 BIF ERD-2 Raw MM-2 MM-1 MM-2 BIF ERD-2 Raw BIF MM-2 MM-1 MM-2 BIF MM-1 BIF MM-2 ERD-2 MM-2 MM-1 MM-2 BIF ERD-2 Raw MM-2 MM-1 MM-1 MM-2 BIF BIF MM-2 Raw MM-1 MM-2 BIF ERTI-? Run 34 57 58 82 54 35 82 58 83 55 35 55 84 59 84 56 59 56 84 35 85 60 85 57 35 85 60 61 86 57 57 87 61 87 58 36 Turb, FTU 0.08 0.14 0.60 1.80 0.25 0.19 0.99 2.1 0.43 2.1 0.32 0.15 0.90 0.41 1.60 0.40 0.11 0.38 0.06 0.30 0.05 0.08 0.30 0.11 0.07 0.17 0.12 0.71 0.12 0.17 0.20 0.09 0.27 0.31 0.09 2.10 0.10 0.15 0.40 0.10 PH 7.48 6.75 7.23 7.67 8.10 8.13 8.11 7.10 7.05 7.50 8.00 7.90 7.99 7.99 7.43 7.99 7.50 7.95 7.15 8.05 7.50 8.12 7.70 7.50 7.53 7.95 7.86 7.90 7.53 7.31 7.38 7.52 7.90 7.95 7.62 8.12 7.40 7.70 7.92 7.91 Temp, °F 55 55 55 55 55 50 49 48 48 50 47 51.5 48.5 48.5 48.5 48 47 46 46.5 44 45 44 46 43 44 44 44 44 44 46 47 45 46 46.5 46 Alk, mg/1 44 30 30 40 44 44 44 38 29 38 42 43 43 42 37 41 34 44 29 44 37 44 43 32 39 45 45 45 39 31 34 39 45 45 39 45 34 39 45 45 Hardness mg/1 41 46 44 47 45 44 45 47 42 42 42 47 43 45 45 44 44 44 44 44 44 44 44 44 44 45 44 44 44 44 44 44 Alumi- num, mg/1 Iron, mg/1 0 0.0 0 0.0 0.0 0 32 ------- APPENDIX A-3 (CONTINUED) Date 7-12 7-13 7-15 7-16 Unit MM-1 MM- 2 BIF ERD-2 Raw MM- 2 BIF MM-1 MM- 2 BIF ERD-2 MM-2 MM-1 MM-2 BIF ERD-2 MM-1 MM-2 MM-1 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Run 61 87 58 36 87 58 62 88 59 36 88 62 89 59 36 63 89 63 60 36 64 90 61 37 64 90 61 37 64 91 61 37 Turb, FTU 0.09 0.10 0.26 0.12 1.0 0.14 0.33 0.09 0.12 0.36 0.15 0.08 0.07 0.08 0.25 0.10 0.12 0.10 0.12 0.36 0.12 0.73 0.80 0.27 0.20 0.62 0.20 0.07 0.07 0.35 0.08 0.63 0.70 0.07 0.06 0.28 0.09 pH 7.38 7.58 7.82 7.80 7.92 7.60 7.81 7.39 7.72 7.80 7.80 7.61 7.40 7.62 7.85 7.91 7.39 7.65 7.55 7.94 7.90 7.80 7.95 7.63 7.70 8.00 7.90 7.48 7.80 8.02 7.90 8.00 7.95 7.65 7.70 7.85 7.90 Temp, °F 45 45 44.5 46 44 44 43.5 45 44 44 44.5 47 45 46 47 45 44 43.5 45 43 41 42 42 42 42 43.5 43 42.5 44 42 42 43.5 43 43 43.5 Alk, mg/1 33 40 45 45 44 39 44 32 39 44 44 40 34 39 44 44 33 38 32 43 42 43 42 38 37 43 42 36 38 42 41 43 42 38 38 41 42 Hardness mg/1 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 43 44 45 44 44 44 44 45 44 44 43 43 44 44 44 44 Alumi- num, mg/1 Iron, mg/1 0.0 0.0 o.o: o.o: 0.0. o.o: o.o; o.o: 0.0^ 0.0^ o.o: o.o: o.o; 33 ------- APPENDIX A-3(CONTINUED) Date 7-16 7-17 7-18 Unit MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 ERD-2 Raw MM-1 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-2 BIF MM-1 MM-2 ERD-2 Raw Run 65 92 62 38 65 92 63 38 65 38 65 64 38 66 93 64 38 93 66 94 65 39 66 94 66 39 94 66 67 95 39 Turb, FTU 0.25 0.15 0.72 0.13 0.70 0.10 0.06 0.12 0.06 0.81 0.08 0.09 0.65 0.20 0.16 0.11 0.05 0.06 0.12 0.10 0.67 0.07 0.09 0.10 0.09 0.10 0.70 0.73 0.12 0.09 0.14 0.11 0.10 0.30 0.08 0.56 0.12 0.79 PH 7.45 7.67 7.95 7.90 8.00 7.50 7.60 7.99 7.89 8.00 7.60 7.90 7.70 7.60 8.00 7.82 7.70 7.82 8.15 7.98 7.95 7.80 7.74 7.85 7.99 7.95 8.00 8.00 7.75 7.80 8.10 7.91 7.85 8.02 7.75 7.90 7.98 8.00 Temp, °F 41 41 41 41 41 43 43 43 43 42 43 43 43 43 43 43 43.5 44 44 44 42 44 43.5 43.5 44 43.5 42 42 44 44 44 44 43 43 42 42 42 41 Alk, mg/1 35 38 43 42 43 34 35 43 42 44 35 42 43 38 45 43 39 38 43 44 43 38 39 39 42 43 42 43 39 39 42 39 39 41 38 39 43 42 Hardness mg/1 44 44 44 44 43 44 45 44 44 43 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 Alumi- num, mg/1 Iron, i^g/l O.Of o.o: o.o: 0.02 0.02 0.2C 0.0! o.oe 0.02 0.0! 0.02 0.02 0.04 0.02 0.02 34 ------- APPENDIX A-3 (CONTINUED) Date 7-19 7-20 7-22 7-23 Unit ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw BIF MM-1 MM-2 ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 BIF ERD-2 MM-2 Run 39 67 95 69 40 67 96 70 40 68 97 70 40 70 68 97 40 69 98 71 41 69 98 71 41 69 71 41 98 Turb, FTU 0.11 0.86 0.09 0.70 0.34 0.08 0.11 0.16 0.25 0.08 0.88 0.10 0.30 0.26 0.10 0.64 0.32 0.12 0.22 0.16 0.73 0.06 0.07 0.14 0.06 0.53 0.08 0.08 0.15 0.11 0.63 0.60 0.13 0.17 0.21 0.22 PH 8.00 7.99 7.70 7.85 8.10 7.95 7.65 7.62 7.90 7.92 7.92 7.7 7.8 8.05 8.0 7.92 8.01 7.8 7.75 7.82 8.00 7.75 7.80 8.00 7.90 8.01 7.80 7.85 8.02 7.95 8.05 8.00 7.80 8.02 7.95 7.80 Temp, °F 42 41 42 42 42 A2 42 42 42 42 41 50 50 50 50 49 48 47 48 47.5 47 51.5 52 51.5 52 50.5 50 51 50 50.5 49 49 51 51 51 51 Alk, mg/1 41 42 38 39 42 41 39 41 44 44 44 39 41 45 44 45 45 39 42 43 42 39 39 44 43 43 38 39 44 41 43 39 43 41 38 Hardness mg/1 44 44 44 45 44 44 44 44 44 44 43 44 44 45 44 43 45 44 44 44 43 44 44 44 44 43 44 44 44 44 44 44 44 44 44 44 Alumi- num, mg/1 Iron, mg/1 0.0, 0.0 o.o: 0.0( O.Oi O.Oi o.o: o.o: o.o: o.o: o.o: o.o: o.o: 0.0( o.o: 35 ------- APPENDIX A-3(CONTINUED) Date 7-23 7-24 7-25 Unit MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-2 BIF ERD-2 Raw MM-1 Raw MM-1 MM-2 BIF ERD-2 BIF ERD-2 MM-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw Run 70 99 72 41 70 99 72 42 100 72 42 71 71 100 73 42 72 42 100 71 101 73 43 72 101 73 43 72 101 73 43 Turb, FTU 0.07 0.11 0.18 0.11 0.58 0.60 0.06 0.10 0.21 0.06 0.11 0.13 0.09 0.68 0.23 0.78 0.07 0.09 0.18 0.11 0.14 0.18 0.08 0.08 0.13 0.17 0.12 0.89 0.84 0.15 0.20 0.21 0.15 0.07 0.09 0.23 0.09 0.66 pH 7.65 7.70 7.95 7.99 8.00 8.01 7.70 7.73 8.00 7.95 7.65 7.98 7.98 7.96 7.58 8.00 7.53 7.52 7.90 7.90 7.92 7.95 7.65 7.58 7.60 7.89 7.90 7.99 7.70 7.40 7.32 7.72 7.70 7.60 7.70 8.00 8.00 8.00 Temp, °F 46 46 46 46 45 47.5 48.5 48.5 49 48.5 49.5 50 50 49 50 53 53 53 53 52.5 54 54 54 54 54 54 54 52.5 53 53.5 53.5 54 53 54 54 54 53 Alk, mg/1 38 39 42 42 43 44 39 38 44 42 38 44 43 43 38 44 38 39 44 44 44 44 38 38 38 43 43 43 44.0 47.0 46.0 46.0 47.0 48.0 48.0 48.0 45.0 46.0 Hardness mg/1 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 45 44 44 44 44 44 44 43 44 43 44 47 46 46 47 48 48 48 45 46 Alumi- num, mg/1 0.017 0.033 0.025 Iron, mg/1 0.03 0.03 0.02 0.02 0.03 0.03 0.06 0.03 0.02 0.02 36 ------- APPENDIX A-3 (CONTINUED) Date 7-25 7-26 7-27 7-29 Unit BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-2 BIF MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw BIF Run 73 43 73 103 74 44 102 74 73 103 75 44 73 103 75 44 73 103 75 74 104 76 45 74 104 76 45 77 Turb, FTU 0.19 0.14 0.66 0.12 0.17 0.19 0.12 0.36 0.21 0.08 0.06 0.11 0.16 0.58 0.05 0.09 0.11 0.13 0.54 0.13 0.44 0.15 0.55 0.64 0.09 0.08 0.10 0.09 0.13 0.24 0.11 0.11 0.75 0.14 PH 8.10 8.10 8.10 7.50 7.70 8.00 7.90 7.32 7.75 7.28 7.32 7.78 7.60 7.75 7.42 7.46 7.90 7.85 7.95 7.40 7.30 7.75 7.70 7.80 7.25 7.40 7.80 8.00 7.10 7.20 7.40 7.60 7.30 7.60 Temp, °F 51 54 52 53 53 53 51 50 45 44 44 45 43 43 43 43 43.5 42 44 44 44 40 39.5 40 40.5 41 41 42 42 42 40.5 Alk, mg/1 46.0 48.0 45.0 49.0 46.0 47.0 44.0 43 45 41 42 45 45 42 39 38 42 43 43 38 40 44 43 41 42 42 38 42 46 43 42 40 39 43 Hardness mg/1 46 48 45 47 46 47 48 45 44 44 45 45 46 45 45 45 45 45 46 47 46 47 47 48 46 49 46 47 63 64 47 59 54 65 Alumi- num, mg/1 0.035 0.079 0.026 0.036 0.030 0.054 0.007 0.013 0.028 0.045 0.039 0.005 0.019 0.047 0.065 0.031 0.005 0.007 0.007 0.007 0.011 0.017 Iron, mg/1 37 ------- APPENDIX A-3 (CONTINUED) Date 7-30 7-31 8-1 Dnit MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw Raw Cloquet MM-1 MM-2 Cloquet BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Run 74 104 77 45 74 105 77 45 74 105 77 45 75 105 77 45 75 106 75 46 75 107 78 46 75 107 78 46 Turb, FTO 0.12 0.40 0.13 0.10 0.76 0.72 0.09 0.11 0.14 0.76 0.11 0.06 0.09 0.17 0.79 0.07 0.16 0.08 0.09 0.83 3.6 0.08 0.05 0.10 0.10 0.78 0.82 0.12 0.12 0.10 0.11 0.35 0.06 0.08 0.12 pH 7.20 7.20 7.80 7.60 8.00 7.90 7.40 7.52 8.02 8.05 7.79 7.07 7.18 7.60 7.60 7.59 7.30 7.50 7.75 7.80 7.80 7.70 7.35 7.30 7.70 7.80 7.70 7.80 7.40 7.40 7.50 7.60 7.30 7.20 7.85 7.90 Temp, °F 41 41 40 41 39.5 41.5 40.! 40 40 40 40.5 40.5 41 40 40.5 40 45 42 41 44 40 45 45 39.5 40 40 41 41.5 42 41.5 41.5 42.5 42 41.5 42 Alk, mg/1 39 37 37 43 44 40 40 39 46 43 43 38 39 44 42 43 35 38 42 35 44 46 35 43 42 45 44 39 44 41 35 36 42 36 38 54 Hardness mg/1 53 49 53 65 50 65 42 42 43 43 40 42 43 42 44 44 52 84 69 76 59 63 63 75 70 68 75 55 79 69 51 53 38 42 45 35 ilumi- num, mg/1 0.005 0.019 0.019 0.025 0.017 0.015 0.013 0.019 0.026 0.014 0.017 0.013 0.031 0.011 0.021 0.013 0.011 0.001 0.011 0.021 0.038 0.021 0.021 0.021 0.009 0.026 Iron, mg/1 - 38 ------- APPENDIXA-3 (CONTINUED) Date 8-1 8-2 8-3 8-5 Unit Raw MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 BIF Raw MM-1 MM-2 ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 Raw MM-1 MM-2 BIF ERD-2 Raw Run 76 107 79 46 76 107 79 47 76 108 79 47 76 79 77 108 47 77 108 80 47 77 108 78 109 81 48 Turb, FTU 0.88 0.08 0.07 0.19 0.13 0.94 1.04 0.14 0.14 0.17 0.16 0.07 0.08 0.16 0.11 1.1 0.12 0.12 0.90 0.13 0.07 0.16 0.06 0.09 0.37 0.13 1.12 0.06 0.12 0.87 0.09 0.08 0.25 0.12 0.81 pH 7.80 7.60 7.45 7.95 7.80 7.80 7.80 7.50 7.50 7.90 7.80 7.35 7.50 7.80 7.80 7.50 7.90 8.00 7.50 7.65 7.90 7.50 7.50 7.90 7.80 7.99 7.55 7.39 8.00 7.60 7.55 7.80 7.84 8.03 Temp, °F 40.5 41.5 42 41 42 42 42 42 42 42 42.5 42.5 42.5 42.5 41.5 40 48 49 48 48 48.5 48.5 49 50 48 49 48 45 45.5 45.5 45 44 Alk, mg/1 45 36 36 43 44 46 44 35 36 43 43 36 40 44 42 38 42 45 39 37 42 35 37 42 44 45 38 36 45 39 37 43 44 45 Hardness mg/1 44 44 45 44 45 46 48 44 45 45 45 44 45 42 46 44 45 43 44 46 44 46 45 44 44 45 46 44 44 45 47 45 45 46 fULumi- num, mg/1 0.011 0.011 0.025 0.026 0.038 0.021 0.045 0.073 0.015 0.023 0.023 0.019 3.019 3.021 0.006 ).017 3.017 3.011 3.015 3.030 Iron, mg/1 39 ------- APPENDIX A-3 (CONTINUED) Date 8-5 8-6 8-7 Unit MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF Run 78 109 82 48 78 109 82 48 48 78 109 82 49 78 109 79 110 82 49 79 110 82 49 79 110 83 49 79 110 83 Turb, FTU 0.12 0.07 0.15 0.36 0.56 0.08 0.06 0.19 0.09 0.58 0.08 0.11 0.11 0.20 0.11 0.65 0.16 0.34 0.55 0.08 0.10 0.18 0.20 0.07 0.06 0.15 0.10 0.55 0.58 0.09 0.12 0.21 0.09 0.93 0.09 0.35 0.28 PH 7.40 7.50 7.80 8.10 7.50 7.4 7.4 8.0 8.0 8.0 7.95 7.40 7.50 7.90 8.00 8.03 7.40 7.50 8.00 7.55 7.70 8.00 8.00 7.48 7.40 7.85 7.61 8.00 7.85 7.45 7.50 7.98 7.90 7.65 7.25 7.30 7.70 Temp, °F 44.5 44.5 44.5 44.5 43 43 43.5 42.5 43 41.5 42 42.5 42 42 42 44 42.5 42 42 42 42.5 42.5 43.5 44.5 44 43.5 43 44 45 45 45.5 45 42 41.5 41 40.5 Alk, mg/1 34 35 48 42 46 38 4] 44 44 44 44 37 38 44 43 45 37 37 42 35 37 43 44 33 36 42 40 42 44 37 37 44 43 43 37 38 42 Hardness mg/1 45 39 43 44 46 47 42 47 46 42 46 42 45 44 44 44 45 44 46 43 44 40 44 45 44 41 45 41 44 45 46 44 45 43 46 47 44 Alumi- num, mg/1 0.033 0.009 0.013 0.017 0.017 0.021 0.40 0.025 0.011 0.013 0.011 0.023 0.013 0.021 0.030 0.023 0.028 0.019 Iron, mg/1 > 40 ------- APPENDIX A-3 (CONTINUED) Date 8-7 8-8 8-9 8-10 Unit ERD-2 MM-1 MM-2 BIF ERD-2 Raw ERD-2 MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw Raw BIF MM-1 MM-2 BIF ERD-2 MM-1 BIF Raw - Run 49 79 111 84 49 49 80 111 84 50 80 111 86 50 80 112 86 50 81 112 86 50 86 81 112 87 50 81 87 Turb, FTU 0.07 0.30 0.08 0.15 0.12 0.53 0.10 0.08 0.08 0.18 0.16 0.59 0.17 0.12 0.38 0.26 1.40 0.27 0.35 0.32 0.25 1.50 0.16 0.19 0.29 0.19 1.15 1.3 0.35 0.10 0.14 0.20 0.21 0.12 0.23 1.00 PH 7.70 7.53 7.95 8.00 8.05 7.82 7.70 7.45 7.50 7.85 7.90 7.85 7.40 7.42 7.65 7.92 7.80 7.45 7.60 7.95 8.00 8.00 7.60 7.65 7.86 7.90 7.95 8.10 8.05 7.55 7.60 8.00 7.80 7.38 7.90 Temp, °F 42 42.5 43 43 43.5 42 43 42 41.5 41 41.5 41 54 54 54 55 53 57 57 57 57 55 58 58 58 58 57.5 57 57 57 58 57.5 57.5 58 58 57 Alk, mg/1 43 37 37 41 42 41 42 37 34 40 42 41 38 34 42 42 41 37 38 42 43 41 38 41 41 42 37 42 43 36 39 42 43 37 43 Hardness mg/1 44 45 45 44 44 43 44 43 41 39 43 44 44 45 44 42 42 45 45 43 45 45 43 43 45 44 41 46 46 43 44 49 50 44 45 45 Alumi- num, mg/1 0.021 0.011 0.023 0.038 0.026 0.001 0.013 0.011 0.009 0.007 0.005 0.015 0.017 0.015 0.162 Iron, mg/1 41 ------- APPENDIX A- 3 (CONTINUED) Date 8-12 8-13 8-14 Unit MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 Run 82 113 88 51 82 113 88 51 82 113 88 51 82 114 88 54 83 114 88 54 83 114 88 54 83 114 88 55 83 115 Turb, FTU 0.09 0.08 0.16 0.11 0.62 0.05 0.05 0.21 0.08 0.58 0.66 0.07 0.09 0.21 0.09 0.59 0.16 0.11 0.15 0.16 0.68 0.06 0.06 0.14 0.15 0.59 0.07 0.05 0.15 0.16 0.76 0.06 0.04 0.10 0.09 0.32 0.05 pH 7.40 7.5 8.00 8.08 8.02 7.42 7.50 8.02 8.10 8.05 7.50 7.40 7.30 7.60 7.60 7.99 7.31 7.42 7.98 7.99 8.00 7.60 7.65 7.95 8.05 7.90 7.45 7.40 7.80 7.90 8.10 7.45 7.40 7 80 8.00 7.40 7.35 Temp, °F 52 52 52 51 51 51.5 50 51.5 52 50 51 51 51.5 51 49 50 50 50 53 51 52.5 51.5 52 54 55 55.5 55 56 56 58 57 58 56 58 Alk, mg/1 36 37 44 44 44 35 36 44 41 39 45 34 40 40 43 43 37 38 43 44 43 36 35 42 43 4] 38 36 43 40 43 33 30 42 41 35 35 lardness mg/1 45 45 45 45 45 45 43 45 43 43 46 46 47 47 47 46 43 46 44 45 47 45 44 44 45 44 45 45 53 48 46 47 43 40 50 50 47 lumi- num, mg/1 0.061 0.112 0.420 0.050 0.012 0.421 0.026 0.017 0.017 0.022 0.045 0.022 0.053 0.045 0.095 0.011 0.021 0.025 0.023 0.021 0.017 0.031 0.017 Iron, mg/1 42 ------- APPENDIX A.-3 (CONTINUED) Date 8-14 8-15 8-16 8-17 Unit BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw MM-1 MM-2 BIF ERD-2 Raw Raw MM-1 MM-2 Run 89 55 84 114 89 55 84 114 89 56 84 114 89 56 84 115 89 56 85 115 90 57 85 115 91 57 80 115 Turb, FTU 0.08 0.08 0.62 0.74 0.06 0.06 0.17 0.13 0.54 0.06 0.04 0.13 0.04 0.05 0.04 0.19 0.12 0.51 0.66 0.16 0.09 0.20 0.15 0.62 0.06 0.07 0.17 0.07 0.66 0.06 0.05 0.10 0.14 1.10 0.60 0.08 0.67 pH 7.90 7.70 7.90 7.75 7.50 7.50 8.00 7.90 8.00 7.40 7.40 8.00 8.00 7.10 7.30 7.90 7.50 7.40 7.95 7.40 7.40 7.80 8.00 8.00 7.60 7.40 7.70 7.80 8.00 7.35 7.30 7.80 7.70 7.90 7.60 7.20 7.20 Temp, °F 56 56.5 57 56 57 57.5 57.5 58 57 58 58 58 58 55 57 56 56 56.5 56 57.5 58 58 56.5 56.5 56 56 55.5 56 56.5 54.5 56 56 Alk, mg/1 41 42 38 35 35 34 42 45 43 34 35 44 47 32$ 32 40 37 38 37 36 36 41 36 43 46 38 41 36 38 40 36 50 43 44 42 35 38 Hardness mg/1 43 48 47 50 52 50 49 52 45 46 48 38 46 46 51 50 47 57 48 53 48 52 50 48 36 47 40 47 43 52 48 51 51 45 46 48 48 Mumi- num, mg/1 .015 .042 .023 .013 .030 D.039 .013 ).015 3.011 J.007 ).013 ).017 ).021 ).015 ).017 ).ll ).ll ).028 1.035 1.032 1.017 1.030 1.007 Iron, mg/1 43 ------- APPENDIX A-3 (CONTINUED") Date 8-17 8-19 8-20 8-21 Unit BIF ERD-2 Raw MM- 2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 MM-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 MM-2 Raw MM-1 BIF EBD-2 Run 91 57 116 92 58 116 92 58 117 92 58 117 93 59 117 93 59 118 118 93 59 118 94 60 118 86 94 60 Turb, FTU 0.23 0.13 0.51 0.05 0.19 0.08 0.52 0.06 0.06 0.12 0.69 0.29 0.15 0.12 0.74 0.05 0.26 0.06 0.65 0.23 0.16 0.10 0.07 0.83 0.15 0.23 0.14 0.83 0.11 0.16 0.12 0.20 0.55 0.08 0.16 0.10 PH 7.50 7.40 7.90 7.45 7.90 7.90 8.00 7.40 7.90 7.90 7.90 7.60 7.90 8.00 8.00 7.50 8.00 8.00 8.00 7.45 7.90 7.90 7.30 7.95 7.90 7.30 7.80 7.90 7.35 7.85 7.90 7.20 7.90 7.40 7.80 7.90 Temp, °F 56.5 56 50 51.5 51 51 51 50.5 49.5 50.5 52 53 53 52.5 55.5 57.5 58 57.5 55.5 55 54.5 55 54 56 58 58.5 58 54 55 55 55 53.5 57.5 57.5 56.5 57.5 Alk, mg/1 45 43 42 39 41 41 43 35 48 46 42 39 45 42 42 35 42 39 37 35 47 45 40 48 42 35 43 35] 38 41 40 31 40 34 41 45 Hardness mg/1 47 50 49 45 44 50 45 48 50 48 43 50 53 47 46 45 49 49 45 48 46 46 48 48 48 45 49 44 42 45 40 42 44 48 45 45 Alumi- num, mg/1 0.009 0.011 0.021 0.021 0.021 0.023 0.015 0.021 3.021 3.017 3.011 3.051 3.021 ).035 ).019 ).013 ).011 ).043 Iron, mg/1 44 ------- APPENDIX Ar3 (CONTINUED) Date 8-21 8-22 8-23 8-26 Unit Raw MM-1 BIF ERD-2 MM-1 BIF ERD-2 Raw BIF MM-1 MM- 2 BIF ERD-2 Raw Raw MM- 2 BIF ERD-2 Raw MM-2 BIF ERD-2 BIF MM-2 ERD-2 Raw BIF Raw MM-2 BIF ERD-2 Raw ERD-2 Raw BIF ERD-2 Run 86 94 60 86 95 62 95 86 119 96 62 119 97 62 119 97 63 97 119 63 99 120 100 63 64 101 64 Turb, FTU 0.68 0.09 0.15 0.14 0.05 0.35 0.08 0.65 0.53 0.06 0.08 0.37 0.09 0.60 0.71 0.09 0.24 0.10 0.49 0.07 0.24 0.13 0.25 0.06 0.06 0.55 0.25 0.51 0.11 0.67 0.15 0.46 0.06 0.43 0.09 0.07 PH 7.90 7.35 7.85 7.90 7.30 7.60 7.70 7.70 7.80 7.10 7.10 7.30 7.30 7.70 7.70 7.10 7.50 7.40 7.40 7.40 6.90 7.40 7.60 7.10 7.40 7.50 7.60 7.40 7.20 7.30 7.50 7.90 7.80 7.70 7.70 7.80 Temp, °F 56.5 58 58 58 55 55 55 54 52 52 52 54 53 48.5 49 49 50 49 49.5 49.5 49.5 52 50.5 52 51.5 52 52.5 53 52 51 52 50 52 51 Alk, mg/1 43 35 45 48 35 35 43 45 39 34 35 45 50 47 42 40 46 43 40 34 43 43 42 37 46 49 45 48 49 49 43 42 42 47 42 42 Hardness mg/1 48 41 46 44 50 51 50 45 45 47 45 43 46 44 46 48 48 47 47 48 47 40 48 48 45 49 51 46 50 47 48 48 50 47 53 35 Alumi- num, mg/1 0.011 0.007 0.013 0.003 0.049 0.047 0.055 0.038 0.033 0.57 0.023 0.025 0.039 0.017 0.019 0.009 0.011 0.035 Iron, mg/1 45 ------- APPENDIX A-^l (CONTINUED) Date 8-27 8-28 8-29 Unit Raw BIF ERD-2 ERD-2 Raw MM-2 BIF Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Run 101 64 65 121 102 121 102 66 121 102 66 122 103 66 122 103 67 122 103 67 123 104 67 123 104 68 Turb . , FTU 0.46 0.13 0.10 0.06 0.49 0.07 0.09 0.48 0.06 0.10 0.08 0.48 0.10 0.09 0.07 0.42 0.07 0.18 0.06 0.43 0.05 0.11 0.06 0.47 0.07 0.11 0.04 0.40 0.04 0.11 0.05 0.55 0.06 0.10 0.07 PH 7.40 7.50 7.50 7.50 7.80 7.40 7.70 7.90 7.50 7.85 7.70 7.80 7.40 7.75 7.70 7.80 7.20 7.70 7.60 7.70 7.40 7.70 7.80 7.80 7.50 7.80 7.80 7.70 7.30 7.50 7.40 7.70 7.20 7.60 7.50 Temp., °F 46.5 45 46 46 41 41 42 43 43 43 42.5 42 42 42 43 43 43 43 42 42 41 42 43 42 41 42.5 40 40 40 42 40 41 41 41 Alk., mg/1 40 45 40 41 43 42 47 43 37 46 41 50 42 47 43 45 41 44 50 46 43 45 45 45 42 42 44 45 38 45 46 42 40 40 42 Hardness , mg/1 46 49 53 57 45 47 53 44 45 52 49 45 50 52 50 46 53 46 57 50 50 50 53 45 53 49 50 54 58 46 57 51 50 52 51 Aluminum , mg/1 0.042 0.057 0.019 0.007 0.015 0.011 0.023 0.062 0.047 0.039 0.015 0.038 0.038 0.021 0.011 0.011 0.013 Iron, mg/1 46 ------- APPENDIX A-3 rOONTINIIKTrt Date 8-30 8-31 9-3 9-4 Unit BIF Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 MM-2 BIF ERD-2 Raw Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 BIF Raw MM-2 Run 104 123 104 68 124 105 68 124 106 68 124 106 68 125 107 69 125 107 69 126 108 69 126 108 70 108 126 Turb . , FTU 0.06 0.41 0.06 0.06 0.04 0.41 0.04 0.21 0.05 0.05 0.16 0.05 0.54 0.93 0.28 0.23 0.06 0.71 0.06 0.17 0.07 0.59 0.07 0.15 0.06 0.63 0.04 0.16 0.04 0.66 0.05 0.18 0.05 0.27 0.68 0.65 pH 7.50 7.50 7.20 7.50 7.50 7.80 7.30 7.80 7.75 7.30 7.60 7.70 7.70 7.70 7.20 7.50 7.50 7.75 7.40 7.70 7.75 7.80 7.50 7.90 7.80 7.90 7.30 7.80 7.70 7.80 7.40 7.80 7.70 7.80 7.80 7.40 Temp., °F 41.5 41.5 41 40.5 42 40 40 40 41 40 40 40 39 40 39 39 40 39 40 40 40 41 40 41 41.5 40 40 40 41 40 41 41 41 40 41.5 41 Alk., mg/1 46 41 40 46 45 40 35 43 47 39 42 44 45 39 37 38 36 44 40 41 40 44 38 38 41 44 38 42 44 43 39 42 41 39 40 35 Hardness , mg/1 52 58 52 52 55 46 53 55 55 55 50 52 50 50 60 53 52 46 58 50 50 46 50 55 48 51 53 51 50 46 48 47 47 52 46 50 Aluminum , mg/1 0.011 0.013 0.015 0.021 0.026 0.039 0.023 0.026 0.025 0.013 0.011 0.011 0.011 0.011 0.028 0.015 0.011 0.025 Iron, mg/1 47 ------- APPENDIX A-.l (CONTINUED') Date 9-4 9-5 9-6 9-7 9-9 Unit BIF ERD-2 Raw BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw BIF ERD-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIB Run 109 70 109 70 127 110 71 127 110 71 128 110 71 128 111 72 128 111 72 112 72 129 113 73 129 113 Turb . , FTU 0.25 0.05 0.64 0.45 0.05 0.69 0.06 0.16 0.05 0.65 0.07 0.17 0.05 0.62 0.06 0.11 0.05 0.53 0.04 0.11 0.06 0.44 0.10 0.06 0.05 0.39 0.05 0.04 0.46 0.10 0.07 0.06 0.50 0.06 0.07 PH 7.80 7.80 7.90 7.85 7.80 7.85 7.40 7.80 7.75 7.80 7.40 7.80 7.80 7.75 7.40 7.20 7.80 7.75 7.70 7.60 7.70 7.90 7.40 7.60 7.60 7.70 7.40 7.50 7.40 7.20 7.40 7.40 7.70 7.10 7.40 Temp . , oF 40 41.5 40 40 41 41 42 42 42 42.5 41 41 42 40 40.5 40 42 42 43 43 43 48 46 46 46 46 46 47 49 46.5 46.5 47.5 48 48 48 Alk., mg/1 45 42 43 39 40 43 35 41 42 41 38 40 43 44 40 43 40 43 38 42 40 43 33 44 44 35 35 40 38 35 35 40 43 36 45 Hardness , mg/1 51 56 45 52 53 44 45 46 52 45 58 48 49 46 55 52 55 46 56 55 55 44 46 41 50 44 50 54 44 51 49 49 45 46 45 Aluminum, mg/1 0.026 0.025 0.011 0.007 0.009 0.015 0.009 0.005 0.007 0.013 0.007 0.011 0.011 0.028 Iron, mg/1 48 ------- APPENDIX Ar-3 (CONTINUED) Date 9-9 9-10 9-11 9-12 Unit ERD-2 Raw MM-2 BIF ERD-2 BIF MM-2 BIF ERD-2 Raw MM-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 BIF MM-2 BIF ERD-2 Raw MM-2 Raw MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Run 73 130 113 73 113 130 114 74 131 131 114 74 132 114 75 114 132 115 75 133 134 115 75 134 115 76 Turb. , FTU 0.50 0.50 0.06 0.08 0.07 0.10 0.08 0.07 0.05 0.50 0.06 0.76 0.07 0.07 0.06 0.74 0.06 0.07 0.07 0.10 0.20 0.15 0.05 0.45 0.07 0.55 0.04 0.07 0.05 0.40 0.04 0.06 0.05 PH 7.40 7.70 7.30 7.60 7.50 7.30 7.00 7.80 7.90 7.90 7.40 7.80 7.40 7.70 7.80 7.70 7.80 7.80 6.90 6.70 7.00 7.60 7.60 7.80 7.10 7.80 7.20 7.40 7.60 7.70 7.20 7.60 7.60 Temp . , °F 49 48 48.5 49 48 48 47 48 49 47 47 47 47 47.5 48 49 49 49 47 47 45 46 47 45 44 44 44 45 45 46 46 46 Alk., mg/1 43 45 38 40 46 40 35 42 43 43 36 43 35 40 43 43 35 40 41 30 25 40 37 43 32 43 33 43 40 42 39 40 45 Hardness , mg/1 44 45 50 42 48 48 43 45 47 44 45 45 48 52 45 44 46 44 45 46 43 45 42 44 41 44 47 41 50 46 55 48 55 Aluminum, mg/1 0.015 0.011 0.023 0.011 0.011 0.011 0.017 0.015 0.011 0.015 0.013 0.011 0.011 0.007 0.015 Iron. mg/1 49 ------- APPENDIX A-3 (CONTINUED) Date 9-12 9-13 9-14 9-16 9-17 Unit MM-2 BIF ERD-2 Raw Raw MM-2 BIF ERD-2 MM-2 BIF Raw MM-2 BIF Raw MM-2 BIF ERD-2 Raw BIF ERD-2 Raw BIF Raw MM-2 BIF ERD-2 MM-2 BIF ERD-2 Raw Raw MM-2 BIF ERD-2 Run 134 116 76 135 116 76 136 116 136 116 130 117 78 117 78 117 138 118 79 138 118 79 138 118 79 Turb . , FTU 9.0 0.07 0.06 0.35 0.41 0.04 0.05 0.04 0.04 0.05 0.47 0.55 0.05 0.40 0.05 0.08 0.08 0.49 0.05 0.03 0.45 0.04 0.37 0.04 0.08 0.04 0.04 0.08 0.05 0.38 0.46 0.05 0.07 0.06 pH 7.30 7.90 7.80 7.90 8.00 7.50 7.90 7.90 6.90 7.30 7.30 7.20 7.40 7.90 7.50 7.90 8.00 8.00 7.40 8.00 7.90 7.40 7.70 7.40 7.20 7.50 7.30 7.10 7.40 7.70 7.70 7.30 7.70 7.70 Temp . , °F 44 44 44 45 44 44 44 44.5 46 46 45 46 44 45 44 44 44 42 42 43 45 46 40 40 40 40 43 43 43 42 41 40 39.5 40 Alk., mg/1 35 45 40 44 43 35 40 42 35 40 38 27 45 38 34 40 45 43 42 43 45 40 43 37 38 37 38 33 35 43 44 32 42 55 Hardness , mg/1 46 48 48 44 49 52 56 45 45 56 44 55 56 44 45 50 45 44 41 50 44 45 45 43 46 45 47 50 43 44 45 48 50 50 Aluminum , mg/1 0.075 0.013 0.011 0.005 0.067 0.011 0.049 0.011 0.011 0.005 0.012 0.009 0.028 0.015 0.011 0.011 0.021 Iron> mg/1 50 ------- APPENDIX A-3 (CONTINUED) Date 9-17 9-18 9-19 9-20 Unit Raw MM-2 BIF ERD-2 MM-2 BIF ERD-2 Raw MM-2 BIF ERD-2 Raw ERD-2 Raw MM-1 MM-1 ERD-2 Raw MM-1 ERD-2 Raw MM-2 BIF ERD-2 Raw Raw MM-2 BIF ERD-2 Raw MM-2 BIF Run 139 119 80 139 119 80 139 119 80 81 87 87 81 87 81 140 120 82 140 120 83 140 120 Turb . , FTU 0.42 0.06 0.06 0.05 0.08 0.10 0.08 0.53 0.06 0.07 0.05 0.48 0.06 0.57 0.26 0.14 0.06 0.51 0.10 0.05 0,51 0.06 0.11 0.06 0.52 0.49 0.05 0.58 0.05 0.45 0.05 0.07 pH 8.00 7.50 8.00 7.90 7.50 7.90 7.90 7.90 7.50 8.00 7.90 7.90 7.75 7.90 7.80 7.60 7.70 7.90 7.70 7.70 7.90 7.40 7.60 7,60 7.70 7.70 7.20 7.40 7.40 7.31 7.20 7.51 Temp . , °F 42 42 42 43 42 42 42 41 43 42 44 44 40 39 40 41 41 40 41 41.5 41 42 42 42 41 39 40 39 40 40 41 48 Alk., mg/1 45 37 42 40 42 50 40 43 38 40 40 43 46 43 42 42 38 43 42 45 43 38 39 38 43 43 37 42 45 43 40 48 Hardness , mg/1 45 44 47 46 50 47 53 46 51 52 55 44 43 44 48 47 50 44 51 52 45 50 48 43 44 44 45 43 50 45 44 Aluminum, mg/1 0.011 0.013 0.011 0.021 0.011 0.021 0.011 0.015 0.011 0.007 0.021 0.005 0.019 0.021 0.021 0.038 0.054 0.049 Iron, mg/1 51 ------- APPENDIX A.-3 (CONTINUED') Date 9-20 9-21 a b c Unit Raw MM- 2 BIF ERD-2 MM-2 ERD-2 Raw BIF Raw BIF ERD-2 Fr< th Bet no Rai Run 140 121 85 140 85 122 122 86 ra 6-1 ,s unJ kman . stan r samp Turb. , FTU 0.42 0.05 0.05 0.05 0.06 0.05 0.43 0.09 0.48 0.07 0.06 3 to 6- t reads >H metei iardize Le bott! PH 7.70 7.30 7.70 7.70 7.40 7.80 7.75 7.60 7.80 7.60 7.60 5, pH .ower would Corni e cont Temp . , °F 40 41 40 41 40.5 41.5 40 40 41 42 42 «?as run than Be not co ig pH m iminate Alk., mg/1 43 36 40 42 36 42 43 43 44 46 40 on Corr kman pi ne to r« ;ter was • Hardness , mg/1 44 48 48 49 48 48 45 55 44 48 55 .ng pH met meter. st at any used. Aluminum, mg/1 0.017 0.011 0.011 0.021 0.011 ir. Appare ralue, woul< Iron> mg/1 tly 52 ------- APPENDIX A-4 DISSOLVED OXYGEN DATA, RAW AND FILTERED WATER, DULUTH LAKEWOO& PUMPING STATION - 1974. Date 2-25 3-4 3-11 3-26 4-2 4-8 4-15 4-18 4-22 4-29 5-6 5-13 5-20 5-28 6-3 6-16 6-17 6-24 7-1 7-8 7-12 7-12 7-12 7-12 7-12 7-20 7-20 7-20 7-20 7-20 7-23 7-23 7-23 7-23 7-23 7-26 7-26 7-26 7-26 8-2 8-2 8-2 8-2 Unit Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw BIF ERD-2 MM-1 MM-2 BIF MM-2 MM-1 ERD-2 RAW ERD-2 BIF MM-1 MM-2 RAW ERD-2 BIF MM-2 MM-1 BIF MM-1 MM-2 ERD-2 Time 0815 0900 0830 0900 0830 0830 0830 0820 0815 0840 0820 0810 0900 0830 0815 0815 0845 0815 0830 0900 1130 1240 1242 1245 1247 0020 0024 0028 0032 0036 2235 2239 2243 2247 2253 1245 1248 1251 1318 1505 1507 1507 1511 Run _ - - - - - - - - - - - - - - - - — - - - 58 36 62 88 70 97 68 40 - 42 72 70 99 — 44 75 103 73 79 77 108 47 DO, mg/1 14.2 14.2 14.2 14.4 14.6 14.5 14.2 14.1 14.5 14.4 14.5 14.5 13.9 13.8 14.0 12.0 14.8 13.6 13.6 13.6 13.6 11.3 12.3 12.6 12.6 11.8 12.0 12.2 11.9 14.4 12.3 12.5 12.2 12.6 13.1 12.2 11.4 13.3 12.4 10.6 15.3 11.7 8.9 Water temperature, °F 33 33 33 33 33 33 33 33 33 33 33.5 34 35 35 37 37 37 38 39 39.5 43.5 43.5 45.0 45.0 45.0 48.0 48.0 48.0 48.0 47.0 48.5 49.0 48.5 48.5 47.5 47.0 50.0 51.0 51.0 48.0 48.0 48.0 48.5 DO saturation value , mg/1 14.4 14.4 14.4 14.4 14.4 14.4 14.4 14.4 14.4 14.4 14.3 14.2 14.0 14.0 13.6 13.6 13.6 13.4 13.2 13.1 12.3 12.3 12.1 12.1 12.1 11.6 11.6 11.6 11.6 11.8 11.6 11.5 11.6 11.5 11.7 11.8 11.3 11.2 11.2 11.6 11.6 11.6 11.5 53 ------- APPENDIX A-4 (CONTINUED). Date 8-9 8-9 8-9 8-9 8-9 8-14 8-14 8-14 8-14 8-14 9-4 9-4 9-4 9-4 Unit Raw m-i Mf-2 BIF ERD-2 MM-1 MM-2 BIF ERD-2 Raw 10^2 Raw ERD-2 BIF Time 2335 2320 2323 2326 2330 2022 2000 2005 2016 2007 2115 2120 2123 2127 Run •M 81 112 87 50 84 115 90 55 — 126 — 70 109 DO, mg/1 11.1 10.9 10.0 10.9 10.5 10.5 10.2 10.4 10.5 10.6 12.8 13.2 13.0 12.9 Water temperature, °F 58.0 57.0 58.0 57.5 57.5 57 58 56 56.5 57.0 40 41 41 41 DO saturation value, *g/l 10.3 10.4 10.3 10.4 10.4 10.4 10.3 10.5 10.5 10.4 13.0 12.8 12.8 12.8 54 ------- APPENDIX A-5 BACTERIOLOGICAL DATA, RAW AND FILTERED WATER, DULUTH LAKEWOOD PUMPING STATION - 1974. Ul 01 Date 6/10 6/11 6/12 6/12 6/12 6/12 6/13 6/13 6/13 6/13 6/14 6/14 6/14 6/14 7/10 7/10 7/10 7/10 Time 1245 1330 1232 1223 1228 1225 1225 1232 1238 1401 1234 1238 1340 1231 1238 1241 1243 1235 Unit MM-2 MM-2 MM-1 MM-2 ERD-2 BIF MM-1 MM-2 ERD-2 BIF MM-1 MM-2 ERD-2 BIF MM-1 MM-2 ERD-2 BIF Run 55 55 35 56 1 25 36 57 1 28 37 59 3 29 59 84 35 56 Total Coliform /100 ml 132 50 38 38 38 38 20 20 20 20 4 4 4 4 8 8 8 8 Raw Water Fecal Coliform /100 ml 55 16 9 9 9 9 7 7 7 7 7 7 7 7 1 1 1 1 Finished Water Fecal Strep. /100 ml 110 55 16 16 16 16 6 6 6 6 1 1 1 1 1 1 1 1 Total Coliform /100 ml 3 0 0 2 0 0 0 0 0 0 2 0 0 0 5 0 0 0 Fecal Coliform /100 ml 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 Fecal Strep. /100 ml 2 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 0 ------- TECHNICAL REPORT DATA (Please read Instructions on the reverse before completing) 1. REPORT NO. EPA-670/2-75-050b 3. RECIPIENT'S ACCESSIOWNO. 4. TITLE AND SUBTITLE DIRECT FILTRATION OF LAKE SUPERIOR WATER FOR ASBESTIFORM FIBER REMOVAL Appendix A 7~AUTHOR(S) : 5. REPORT DATE June 1975; Issuing Date 6. PERFORMING ORGANIZATION CODE 8. PERFORMING ORGANIZATION REPORT NO. Black § Veatch, Consulting Engineers 9. PERFORMING ORGANIZATION NAME AND ADDRESS Black § Veatch, Consulting Engineers 1500 Meadow Lake Parkway Kansas City, Missouri 64114 10. PROGRAM ELEMENT NO. 1CB047; ROAP 21AQB; Task 024 11. CONTRACT/OBWOTCKNO. DACW 37-74-C-0079 IAG #EPA-IAG-D4-0388 12. SPONSORING AGENCY NAME AND ADDRESS National Environmental Research Center Office of Research and Development U.S. Environmental Protection Agency Cincinnati, Ohio 45268 13. TYPE OF REPORT AND PERIOD COVERED Final 14. SPONSORING AGENCY CODE 15. SUPPLEMENTARY NOTES This work conducted through interagency agreement between EPA Region V and the Corps of Engineers, St. Paul District. See also EPA-670/2-75-050a, c, d, e, f, and g. 16. ABSTRACT Pilot plant research conducted in 1974 at Duluth, Minnesota, demonstrated that asbestiform fiber counts in Lake Superior water would be effectively reduced by municipal filtration plants. During the study, engineering data were also obtained for making cost estimates for construction and operation of both granular and diatomaceous earth (DE) filtration plants ranging in size from 0.03 to 30 mgd. This appendix contains a portion of the data collected in the study. The following cate- gories of information are presented in Appendix A: (1) Weather and lake level data; (2) Operating schedule for pumps at the pumping station; (3) Chemical and physical quality parameters of raw and filtered water; (4) Dissolved oxygen content of raw and finished water; and (4) Bacteriological data for raw and finished water. 17. KEY WORDS AND DOCUMENT ANALYSIS DESCRIPTORS b.lDENTIFIERS/OPEN ENDED TERMS Mixed media filtration Diatomaceous earth fil- tration Asbestiform Chrysotile Fiber removal Duluth (Minnesota) Lake Superior c. COSATI Field/Group Asbestos Amphiboles Serpentine Water supply Filtration Water treatment Pilot plants 13B 18. DISTRIBUTION STATEMENT RELEASE TO PUBLIC 19. SECURITY CLASS (ThisReport) UNCLASSIFIED 21. NO. OF PAGES 62 20. SECURITY CLASS (Thispage) UNCLASSIFIED 22. PRICE EPA Form 2220-1 (9-73) 56 # U S. GOVERNMENT PRINTING OFFICE I975-657-59V5395 Region No- ------- |