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October 2009 Potential SSO Monitoring Report CINCINNATI MSD ATTACHMENT A

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October 2009

Potential SSO Monitoring ReportCINCINNATI MSD

ATTACHMENT A

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: OCTOBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 16006007 RAIN 11506001 RAIN

1 0 0.01 0 0.012 0 0.39 0 0.403 0 0.00 0 0.004 0 0.00 0 0.005 0 0.00 0 0.006 0 0.06 0 0.067 AH 0.04 0 0.058 AH 0.72 0 0.719 AH 1.39 0 1.39

10 0 0.00 0 0.0011 0 0.00 0 0.0012 0 0.00 0 0.0013 0 0.00 0 0.0014 0 0.22 0 0.2315 0 0.08 0 0.0816 0 0.00 0 0.0017 0 0.00 0 0.0018 0 0.00 0 0.0019 0 0.00 0 0.0020 0 0.00 0 0.0021 0* 0.00 0 0.0022 0* 0.00 0 0.0023 POS 0.76 0 0.7624 0 0.00 0 0.0025 0 0.00 0 0.0026 0 0.00 0 0.0027 0 0.48 0 0.4828 0 0.15 0 0.1529 0 0.00 0 0.0030 0 0.06 0 0.0631 0 0.74 0 0.72

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOWFL-MONITORING SITE WAS FLOODED DUE TO ELEVATED RIVER STAGE

- DATE SITE WAS MONITORED

Page 1 of 5

ATTACHMENT A

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: OCTOBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 38210011 RAIN 38207014 RAIN 43503010 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.49 0 0.49 0 0.423 0 0.00 0 0.00 0 0.004 0 0.00 0 0.00 0 0.005 0 0.00 0 0.00 0 0.006 0 0.06 0 0.06 0 0.057 0 0.00 0 0.00 0 0.008 0 0.69 0 0.69 0 0.739 AH 1.41 0 1.41 0 1.3210 0* 0.00 0 0.00 0 0.0011 0* 0.00 0 0.00 0 0.0012 0* 0.00 0 0.00 0 0.0013 0 0.00 0 0.00 0 0.0014 0 0.16 0 0.16 0 0.1915 0 0.11 0 0.11 0 0.1216 0 0.01 0 0.01 0 0.0417 0 0.00 0 0.00 0 0.0018 0 0.00 0 0.00 0 0.0019 0 0.00 0 0.00 0 0.0020 0 0.00 0 0.00 0 0.0021 0 0.00 0 0.00 0 0.0022 0 0.00 0 0.00 0 0.0023 0 0.84 0 0.84 0 0.8324 0 0.00 0 0.00 0 0.0025 0 0.00 0 0.00 0 0.0026 0 0.00 0 0.00 0 0.0027 0 0.43 0 0.43 0 0.3528 0 0.25 0 0.25 0 0.3529 0 0.00 0 0.00 0 0.0030 0 0.07 0 0.07 0 0.0631 0 0.62 0 0.62 0 0.57

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 2 of 5

ATTACHMENT A

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: OCTOBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG.DAY 10902003 RAIN

1 0 0.012 0 0.423 0 0.004 0 0.005 0 0.006 0 0.077 0 0.068 0 0.719 0 1.4010 0 0.0011 0 0.0012 0 0.0013 0 0.0014 0 0.2515 0 0.0816 0 0.0017 0 0.0018 0 0.0019 0 0.0020 0 0.0021 0 0.0022 0 0.0023 0 0.7524 0 0.0025 0 0.0026 0 0.0027 0 0.4828 0 0.1529 0 0.0030 0 0.0731 0 0.67

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 3 of 5

ATTACHMENT A

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: OCTOBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 34212001 RAIN 42715002 RAIN

1 0 0.00 0 0.002 0 0.46 AH 0.323 0 0.00 0* 0.004 0 0.00 0* 0.005 0 0.00 POS 0.006 0 0.06 0 0.037 0 0.00 0 0.018 0 0.68 0 0.789 AH 1.39 AH 1.32

10 0* 0.00 0* 0.0011 0* 0.00 0* 0.0012 0* 0.00 0* 0.0013 0 0.00 0 0.0014 0 0.16 0 0.1515 0 0.11 0 0.0916 0 0.02 0 0.0117 0 0.00 0 0.0018 0 0.00 0 0.0019 0 0.00 0 0.0020 0 0.00 0 0.0021 0 0.00 0 0.0022 0 0.00 0 0.0023 0 0.85 0 0.8924 0 0.00 0 0.0025 0 0.00 0 0.0026 0 0.00 0 0.0027 AH 0.40 0 0.3928 AH 0.29 0 0.3229 0* 0.00 0 0.0030 0 0.06 0 0.0631 0 0.61 0 0.64

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 4 of 5

ATTACHMENT A

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: OCTOBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 55814009 RAIN 50810001 RAIN 50810002 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.43 0 0.42 0 0.433 0 0.00 0 0.00 0 0.004 0 0.00 0 0.00 0 0.005 0 0.00 0 0.00 0 0.006 0 0.02 0 0.02 0 0.027 0 0.01 0 0.00 0 0.018 0 0.54 0 0.57 0 0.549 0 1.55 0 1.54 0 1.55

10 0 0.00 0 0.00 0 0.0011 0 0.00 0 0.00 0 0.0012 0 0.00 0 0.00 0 0.0013 0 0.00 0 0.00 0 0.0014 0 0.16 0 0.16 0 0.1615 0 0.09 0 0.09 0 0.0916 0 0.00 0 0.00 0 0.0017 0 0.00 0 0.00 0 0.0018 0 0.00 0 0.00 0 0.0019 0 0.00 0 0.00 0 0.0020 0 0.00 0 0.00 0 0.0021 0 0.00 0 0.00 0 0.0022 0 0.00 0 0.00 0 0.0023 0 0.73 0 0.70 0 0.7324 0 0.00 0 0.00 0 0.0025 0 0.00 0 0.00 0 0.0026 0 0.00 0 0.00 0 0.0027 0 0.37 0 0.38 0 0.3728 0 0.32 0 0.37 0 0.3229 0 0.00 0 0.00 0 0.0030 0 0.13 0 0.13 0 0.1331 0 0.82 0 0.85 0 0.82

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 5 of 5

ATTACHMENT A

November 2009

Potential SSO Monitoring ReportCINCINNATI MSD

ATTACHMENT B

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: NOVEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 16006007 RAIN 11506001 RAIN

1 0 0.00 0 0.002 0 0.00 0 0.003 0 0.00 0 0.004 0 0.04 0 0.055 0 0.00 0 0.006 0 0.00 0 0.007 0 0.00 0 0.008 0 0.00 0 0.009 0 0.00 0 0.00

10 0 0.00 0 0.0011 0 0.00 0 0.0012 0 0.00 0 0.0013 0 0.00 0 0.0014 0 0.00 0 0.0015 0 0.00 0 0.0016 0 0.00 0 0.0017 0 0.44 0 0.4618 0 0.19 0 0.2019 0 0.00 0 0.0020 0 0.00 0 0.0021 0 0.00 0 0.0022 0 0.00 0 0.0023 0 0.00 0 0.0024 0 0.01 0 0.0125 AH 0.01 0 0.0126 AH 0.03 0 0.0327 0* 0.00 0 0.0028 0* 0.00 0 0.0029 AH 0.04 0 0.0430 AH 0.12 0 0.12

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOWFL-MONITORING SITE WAS FLOODED DUE TO ELEVATED RIVER STAGE

- DATE SITE WAS MONITORED

Page 1 of 5

ATTACHMENT B

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: NOVEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 38210011 RAIN 38207014 RAIN 43503010 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.00 0 0.00 0 0.003 0 0.00 0 0.00 0 0.004 0 0.11 0 0.11 0 0.165 0 0.00 0 0.00 0 0.006 0 0.00 0 0.00 0 0.007 0 0.00 0 0.00 0 0.008 0 0.00 0 0.00 0 0.009 0 0.00 0 0.00 0 0.0010 0 0.00 0 0.00 0 0.0011 0 0.00 0 0.00 0 0.0012 0 0.00 0 0.00 0 0.0013 0 0.00 0 0.00 0 0.0014 0 0.00 0 0.00 0 0.0015 0 0.00 0 0.00 0 0.0016 0 0.00 0 0.00 0 0.0017 0 0.42 0 0.42 0 0.3818 0 0.21 0 0.21 0 0.3119 0 0.00 0 0.00 0 0.0020 0 0.00 0 0.00 0 0.0021 0 0.00 0 0.00 0 0.0022 0 0.00 0 0.00 0 0.0023 0 0.00 0 0.00 0 0.0024 0 0.01 0 0.01 0 0.0225 0 0.01 0 0.01 0 0.0026 0 0.04 0 0.04 0 0.0527 0 0.00 0 0.00 0 0.0028 0 0.00 0 0.00 0 0.0029 0 0.07 0 0.07 0 0.0630 0 0.13 0 0.13 0 0.07

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 2 of 5

ATTACHMENT B

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: NOVEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG.DAY 10902003 RAIN

1 0 0.002 0 0.003 0 0.004 0 0.055 0 0.006 0 0.007 0 0.008 0 0.009 0 0.0010 0 0.0011 0 0.0012 0 0.0013 0 0.0014 0 0.0015 0 0.0016 0 0.0017 0 0.5418 0 0.2419 0 0.0020 0 0.0021 0 0.0022 0 0.0023 0 0.0024 0 0.0025 0 0.0126 0 0.0227 0 0.0028 0 0.0029 0 0.0530 0 0.12

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 3 of 5

ATTACHMENT B

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: NOVEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 34212001 RAIN 42715002 RAIN

1 0 0.00 0 0.002 0 0.00 0 0.003 0 0.00 0 0.004 0 0.11 0 0.055 0 0.00 0 0.006 0 0.00 0 0.007 0 0.00 0 0.008 0 0.00 0 0.009 0 0.00 0 0.00

10 0 0.00 0 0.0011 0 0.00 0 0.0012 0 0.00 0 0.0013 0 0.00 0 0.0014 0 0.00 0 0.0015 0 0.00 0 0.0016 0 0.00 0 0.0017 0 0.40 0 0.3718 0 0.26 0 0.2319 0 0.00 0 0.0020 0 0.00 0* 0.0021 0 0.00 0* 0.0022 0 0.00 0* 0.0023 0 0.00 0* 0.0024 0 0.01 0 0.0025 0 0.01 0 0.0026 0 0.05 0 0.0427 0 0.00 0 0.0028 0 0.00 0 0.0029 0 0.07 0 0.0530 0 0.11 0 0.09

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 4 of 5

ATTACHMENT B

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: NOVEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 55814009 RAIN 50810001 RAIN 50810002 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.00 0 0.00 0 0.003 0 0.00 0 0.00 0 0.004 0 0.04 0 0.03 0 0.045 0 0.00 0 0.00 0 0.006 0 0.00 0 0.00 0 0.007 0 0.00 0 0.00 0 0.008 0 0.00 0 0.00 0 0.009 0 0.00 0 0.00 0 0.00

10 0 0.00 0 0.00 0 0.0011 0 0.00 0 0.00 0 0.0012 0 0.00 0 0.00 0 0.0013 0 0.00 0 0.00 0 0.0014 0 0.00 0 0.00 0 0.0015 0 0.00 0 0.00 0 0.0016 0 0.00 0 0.00 0 0.0017 0 0.37 0 0.34 0 0.3718 0 0.32 0 0.32 0 0.3219 0 0.00 0 0.00 0 0.0020 0 0.00 0 0.00 0 0.0021 0 0.00 0 0.00 0 0.0022 0 0.00 0 0.00 0 0.0023 0 0.00 0 0.00 0 0.0024 0* 0.00 0 0.00 0 0.0025 AH 0.01 0 0.01 0 0.0126 AH 0.08 0 0.07 0 0.0827 0* 0.00 0 0.00 0 0.0028 0* 0.00 0 0.00 0 0.0029 AH 0.07 0 0.08 0 0.0730 AH 0.12 0 0.11 0 0.12

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 5 of 5

ATTACHMENT B

December 2009

Potential SSO Monitoring ReportCINCINNATI MSD

ATTACHMENT C

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: DECEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 16006007 RAIN 11506001 RAIN

1 0* 0.00 0 0.002 0 0.29 0 0.303 0 0.00 0 0.004 0 0.00 0 0.005 0 0.00 0 0.006 0 0.00 0 0.007 0 0.04 0 0.048 0 0.73 0 0.739 AH 0.10 0 0.10

10 0* 0.00 0 0.0011 0* 0.00 0 0.0012 0 0.02 0 0.0313 0 0.24 0 0.2314 0 0.00 0 0.0015 0 0.00 0 0.0016 0 0.00 0 0.0017 0 0.00 0 0.0018 0 0.07 0 0.0719 0 0.15 0 0.1420 0 0.00 0 0.0021 0 0.03 0 0.0322 0 0.10 0 0.1023 0 0.13 0 0.1324 0 0.04 0 0.0425 0 0.57 0 0.5626 0 0.00 0 0.0027 0 0.13 0 0.1228 0 0.00 0 0.0029 0 0.00 0 0.0030 0 0.10 0 0.1031 0 0.12 0 0.12

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOWFL-MONITORING SITE WAS FLOODED DUE TO ELEVATED RIVER STAGE

- DATE SITE WAS MONITORED

Page 1 of 5

ATTACHMENT C

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: DECEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 38210011 RAIN 38207014 RAIN 43503010 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.32 0 0.32 0 0.273 0 0.00 0 0.00 0 0.004 0 0.00 0 0.00 0 0.005 0 0.00 0 0.00 0 0.006 0 0.00 0 0.00 0 0.007 0 0.03 0 0.03 0 0.018 0 0.66 0 0.66 0 0.649 0 0.07 0 0.07 0 0.0810 0 0.01 0 0.01 0 0.0011 0 0.00 0 0.00 0 0.0012 0 0.02 0 0.02 0 0.0013 0 0.33 0 0.33 0 0.3314 0 0.00 0 0.00 0 0.0015 0 0.00 0 0.00 0 0.0016 0 0.00 0 0.00 0 0.0017 0 0.00 0 0.00 0 0.0018 0 0.04 0 0.04 0 0.0219 0 0.20 0 0.20 0 0.2220 0 0.00 0 0.00 0 0.0021 0 0.02 0 0.02 0 0.0322 0 0.15 0 0.15 0 0.1623 0 0.19 0 0.19 0 0.1824 0 0.03 0 0.03 0 0.0025 0 0.50 0 0.50 0 0.4426 0 0.00 0 0.00 0 0.0027 0 0.11 0 0.11 0 0.1028 0 0.00 0 0.00 0 0.0029 0 0.00 0 0.00 0 0.0030 0 0.09 0 0.09 0 0.0831 0 0.12 0 0.12 0 0.14

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 2 of 5

ATTACHMENT C

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: DECEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG.DAY 10902003 RAIN

1 0 0.002 0 0.333 0 0.004 0 0.005 0 0.006 0 0.007 0 0.058 0 0.749 0 0.0810 0 0.0011 0 0.0012 0 0.0413 0 0.2314 0 0.0015 0 0.0016 0 0.0017 0 0.0018 0 0.0819 0 0.1320 0 0.0121 0 0.0422 0 0.1023 0 0.1124 0 0.0525 0 0.5326 0 0.0027 0 0.0928 0 0.0029 0 0.0030 0 0.0931 0 0.11

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 3 of 5

ATTACHMENT C

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: DECEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG.DAY 34212001 RAIN 42715002 RAIN

1 0 0.00 0 0.002 0 0.31 0 0.303 0 0.00 0 0.004 0 0.00 0 0.005 0 0.00 0 0.006 0 0.00 0 0.007 0 0.02 0 0.018 AH 0.66 0 0.759 AH 0.06 0 0.07

10 0* 0.00 0 0.0011 0 0.00 0* 0.0012 0 0.01 AH 0.0113 0 0.33 AH 0.2414 0 0.00 0* 0.0015 0 0.00 0 0.0016 0 0.00 0 0.0017 0 0.00 0 0.0018 0 0.03 0 0.0119 0 0.20 0 0.1520 0 0.00 0 0.0021 0 0.02 0 0.0322 0 0.15 0 0.1223 0 0.18 0 0.1024 0 0.02 0 0.0225 0 0.48 0 0.4226 0 0.00 0 0.0027 0 0.12 0 0.1128 0 0.00 0 0.0129 0 0.00 0 0.0030 0 0.09 0 0.1031 0 0.13 0 0.18

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 4 of 5

ATTACHMENT C

MSD of GREATER CINCINNATISANITARY SEWER OVERFLOW REPORT: DECEMBER 2009

POTENTIAL SSO LOCATIONS

MANHOLE AVG. MANHOLE AVG. MANHOLE AVG.DAY 55814009 RAIN 50810001 RAIN 50810002 RAIN

1 0 0.00 0 0.00 0 0.002 0 0.42 0 0.45 0 0.423 0 0.00 0 0.00 0 0.004 0 0.00 0 0.00 0 0.005 0 0.00 0 0.00 0 0.006 0 0.00 0 0.00 0 0.007 0 0.00 0 0.00 0 0.008 0 0.95 0 0.97 0 0.959 0 0.03 0 0.05 0 0.03

10 0 0.00 0 0.00 0 0.0011 0 0.00 0 0.00 0 0.0012 0 0.00 0 0.00 0 0.0013 0 0.20 0 0.19 0 0.2014 0 0.00 0 0.00 0 0.0015 0 0.00 0 0.00 0 0.0016 0 0.00 0 0.00 0 0.0017 0 0.00 0 0.00 0 0.0018 0 0.10 0 0.13 0 0.1019 0 0.09 0 0.12 0 0.0920 0 0.00 0 0.01 0 0.0021 0 0.05 0 0.05 0 0.0522 0 0.10 0 0.11 0 0.1023 0 0.03 0 0.03 0 0.0324 0 0.02 0 0.02 0 0.0225 0 0.42 0 0.42 0 0.4226 0 0.00 0 0.00 0 0.0027 0 0.10 0 0.11 0 0.1028 0 0.00 0 0.00 0 0.0029 0 0.00 0 0.00 0 0.0030 0 0.05 0 0.03 0 0.0531 0 0.15 0 0.17 0 0.15

ADDITIONAL REMARKS :0 - NO DISCHARGE0* - DISCHARGE ESTIMATED NOT TO HAVE OCCURRED ON THIS DAYAH - EVIDENCE OF DISCHARGE EXISTS, HOWEVER EXACT DATE UNKNOWNPOS. - DISCHARGE OBSERVED DURING SITE INSPECTIONX - MONITORING DEVICE DISTURBED, NO INDICATION OF OVERFLOW

- DATE SITE WAS MONITORED

Page 5 of 5

ATTACHMENT C