ML101800154

Report of NPDES Permit Limit Violation

ML101800154
Person / Time
Site:	San Onofre
Issue date:	06/24/2010
From:	St.Onge R J Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML101800154 (16)

Text

J SOUTHERN CALIFORNIA EDISON An EDISON INTERNATIONAL Company Richard 1. St. Onge Director Nuclear Regulatory Affairs June 24, 2010 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Docket No. 50-362 Report of NPDES Permit Limit Violation San Onofre Nuclear Generating Station (SONGS), Unit 3

Reference:

Letter, Mary Jane'Johnson (SCE) to David Gibson (California Regional Water Quality Control Board [CRWQCB]), "NPDES April 2010 Discharge Monitoring Report" May 25, 2010

Dear Sir or Madam:

SONGS Unit 3 Facility Operating Licenses (No. NPF-1 5), Appendix B, Section 3.2, requires violations of the National Pollution Discharge Elimination System (NPDES) Permit to be reported to the NRC by submitting copies of the reports required by the NPDES Permit.By the Reference above, Southern California Edison (SCE) reported to the California Regional Water Quality Control Board (CRWQCB) that the Mesa Sewage Treatment Plant effluent settleable solids monthly average for April 2010 exceeded the limit (1.2ml/I actual vs. 1.0 mi/l limit) allowed by the Unit 3 NPDES permit (number CA0108181).

The Mesa Sewage Treatment Plant effluent exceedance is detailed in the attached letter and discharge monitoring report mailed to the San Diego Regional Water Quality Control Board dated May 25, 2010.If you have any questions, please contact Mr. Clay E. Williams at (949) 368-6707.Sincerely,

Attachment:

As stated.cc: E. E. Collins, NRC Regional Administrator, Region IV R. Hall, NRC Project Manager, SONGS Units 2 and 3 G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3 S. Y. Hsu, California Department of Health Services P.O. Box 128 San Clemente, CA 92674 ou I UM I. Hi:: SO EIUI' CALIFORNIA EDI SON Au E DISON\ INT fI-RATIIIONAL',I Cumpiny " May 25, 2010 Mr. David Gibson California Regional Water Quality Control Board San Diego Region 9174 Sky Park Ct. Suite 100 San Diego, California 92123 IC: 13-0086.01

SUBJECT:

NPDES April 2010 Discharge Monitoring Report San Onofre Nuclear Generating Station, Unit 3

Dear Mr. Gibson:

SCE submits the subject report in accordance with the requirements of Order No. R9-2005-0006 (NPDES Permit No. CA01081 81). All sampled water sources were found to be within permit limits, except the Mesa sewage treatment average settleable solids. The monthly sample was collected close to the completion of plant cleaning maintenance.

This maintenance had stirred up the clarifier enough that solids escaped over the weir. The sample was also collected too late in the month to allow additional samples to factor into the average, thus this single samp'lee represents the average. The Mesa Sewage Treatment Plant average settleable solids returned to compliance on May 11, 2010. We are currently evaluating the apparent cause so that a solution for long term compliance can be developed.

The results of this evaluation will be discussed in the May report. The attached discharge monitoring reports are in the format requested in your January 7, 2008 letter.Pursuant to Order No. R9-2005-0006, State and Federal Standard Provisions, Section E, the following representative has prepared and is authorized to sign the reports required by this order: Arthur Kneisel, Environmental Technical Specialist.

I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly.

gather and evaluate the information submitted.

Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete.

I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Sincerely, Mary Jane o Manager, ite Support Services Enclosure(s) cc: State Water Resources Control Board P.O. Box 128 San Clemente, CA 92674-0128 Southern California Edison Facility : Songs Unit 3 Order No R9-2005-0006 Report Freq: Monthly Report For : April 2010 Report Due: Jun 01, 2010 Waste Stream _: Water intake and Monthly Report Page 1 of 20 Exact Sample Point: Intake and Discharge Conduits Collected By: Analyzed By: Signed : Title : Songs Envir GrpEnvir rp, Environmental Engineer Combined Discharge PARAMETER:

Temperature Difference (degrees Fahrenheit)

= Temperature at Combined Discharge Minus Temperature at Water Intake Combined Date Discharge Water Intake Daily Daily Max Avg Avg Max Avg Diff Difference 4-1-10 69 57 58 12 12 4-2-10 69 57 57 12 12 4-3-10 69 57 58 12 12 4-4-10 70 58 59 12 12 4-5-10 71 58 59 12 12 4-6-10 69 57 58 12 12 4-7-10 69 57 58 12 12 4-8-10 69 57 58 12 12 4-9-10 70 58 58 12 12 4-10-10 71 59 59 12 12 4-11-10 71 59 59 12 12 4-12-10 71 59 59 12 12 4-13-10 71 59 60 12 12 4-14-10 71 59 60 12 13 4-15-10 72 59 60 12 12 4-16-10 72 60 60 12 12 4-17-10 71 59 60 12 13 4-18-10 71 59 60 12 13 4-19-10 71 59 59 12 12 4-20-10 70 58 59 12 13 4-21-10 66 54 58 12 12 4-22-10 64 52 54 12 12 4-23-10 67 54 55 13 13 4-24-10 70 55 57 14 15 4-25-10 72 56 57 16 16 4-26-10 73 56 56 17 17 4-27-10 74 56 57 18 19 4-28-10 75 56 57 18 18 4-29-10 72 54 57 19 19 4-30-10 71 52 54 19 19 Avg 70 57 58 13 14 Reqt .... --25 25 Inactive Page Summary for Outfall Discharges during April 2010 The following pages are not included in the Unit 3 report-due to. lack of discharge during the month: Pages 2 & 3 No Heat Treat performed on the Circ Water Intake Page 4 No Heat Treat performed on Circ Water Discharge Page 8 No Flow on Hotwell Overboard (003-H)Page 9 No Flow on Steam Generator Blowdown (003-G)Page 10 No Flow on Blowdown Processing System (003-C)Page 16 No Flow Concrete Cutting Water (003-K)Page 17 No Flow on Unit 1 Radwaste System (001-D).Page 18 No Flow on Unit 1 Yard Drains (001-E)Page 19 No Flow on Unit 1 Dewatering (001-F)IA APRIL 2010 In-Plant Waste Flows Unit 3 Flow Stream Outfall number Gallons HFMUD (003-D) 1,699,000 FFCPD (003-F) 1,882,000 Intake Sump (003-J) 2,100,000 Building Sump (003-I) 1,500,000 S/G Blowdown (003-G) 0 Hotwell Overboard (003-H) 0 Metal Cleaning (003-A, and 003-B) 0 BPS Sump (003-C) 0 U3 Radwaste (003-E) 23,000 Concrete Cutting Water (003-K) 0 U1 Radwaste (001 -D) 0 U1 Yard Drain Sump (001-E) 0 Dewatering (001-F) 0 Ul Sewage Treatment Plant (001-A)Mesa Sewage Treatment Plant (001-B)Unit 3 Discharge Across the Beach 134,232,000 1B Southern California Edison Monthly Report Page 5 of 20 Facility ' Songs Unit 3 Exact Sample Point: Points of Discharge Order No : Report Freq Report For: Report Due: Waste Stream R9-2005-0006 Monthly April 2010 Jun 01, 2010 Combined Discharge Low Volume Waste Collected By

• Songs Envir Grp Analyzed By Songs Envir Grp Signed: Title : Environmental Engineer Parameter:

Flow Rate Units : Million Gallons per Day (MGD)Combined Circ Water Total Low Total Sewage In Plant Date Discharge Intake Volume Waste Treatment Waste 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 Avg Reqt 1,142.183 1,142.149 1,158.897 1,151.714 1,142.265 1,151.664 1,155.545 1,168.336 1,168.334 1,168.456 1,168.322 1,168.455 1,168.337 1 ,1 68.342 1,168.853 1,168.336 1,168.469 1,168.448 1,168.351 1,168.337 1,168.340 1,168.629 1,168.500 1,168.621 1,168.621 1,168.524 1,168,465 1,168.438 1,168.666 1,168.594 1,163.973 1,141.906 1,141.906 1,158.751 1,151.479 1,142.122 1,151.513 1,155.392 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,168.186 1,163.712 0.245 0.213 0.120 0.210 0.120 0.120 0.120 0.120 0.120 0.252 0.120 0.248 0.120 0.120 0.636 0.120 0.265 0.249 0.143 0.120 0.120 0.408 0.284 0.417 0.424 0.316 0.250 0.218.0.450 0.380 0.235 0.032 0.030 0.026 0.025 0.023 0.031 0.033 0.030 0.028 0.018 0.016 0.021 0.031 0.036 0.031 0.030 0.018 0.013 0.022 0.031 0.034 0.035 0.030 0.018 0.011 0.022 0.029 0.034 0.030 0.028 0.027 0.277 0.243 0.146 0.235 0.143 0.151 0.153 0.150 0.148 0.270 0.136 0.269 0.151 0.156 0.667 0.150 0.283 0.262 0.165 0.151 0.154 0.443 0.314 0.435 0.435 0.338 0.279 0.252 0.480 0.408 0.261 1286.900 11.610 0.145 Sewage Treatment Discharged To Unit 3' Outfall Southern California Edison Monthly Report Page 6 of 20 Facility Songs Unit 3 Exact Sample Point: Intake and Order Non R9-2005-0006 Discharge Conduits Report Freq: Report For: Report Due: ,Waste. Stream.:.Monthly April 2010 Jun 01, 2010 Cooling Water intake Collected By: Analyzed By: Signed: Title: Songs Envir Grp Son e ntal EGr Environmental Engineer Date &Parameter Units Sample Reqt Reqt Result Time Type Type Value Value Collected pH-" GRAB 7.8 4/23/2010 03:36 am 2.7 4/23/2010 03:36 am Turbidity NTU GRAB Southern California Edison Monthly Report Facility: Order No: Report Freq: Repoi'tFor-

....Report Due: Waste Stream: SONGS Unit 3 R9-2005-0005 Monthly April 2010.June 1, 2010 Exact Sample Point: Collected By: Analyzed By: Signed;Page 7 of 20 Point of Discharge SONGS Environmental Group O oE P /Sierra A nalytical Environmental E ngineer Combined Discharge Title: Date &Parameter Units Sample Type Req't Req't Result Time Type Value Value Collected 4/23/2010 Turbidity NTU GRAB ..-- 4.1 3:42 AM 4/23/2010 pH -- GRAB -- 6-9 7.9 3:42 AM Hydrazine ug/l GRAB Inst < 4.0 4/23/2010 lbs/day Max < 39.0 2:25 AM Unit 3 Combined Discharge Chlorination Summary.Page 7a Daily Flow Time Permitted Inst Max Measuredlnst Max Permitted Daily Max (MGD) (min) (ug/l) (1) (lb/d) (2) (ug/I) (lb/d) (3) (ug/l) (lb/d) (4)Measured Daily Max (ug/I) (lb/d) (5)Sample Date Time Location 4/2/2010 4/7/2010 4/15/2010 4/21/2010 4/28/2010 10:57 Outfall 003 10:53 Outfall 003 14:02 Outfall 003 7:51 Outfall 003 13:47 Outfall 003 1141.906 1155.392 1168.186 1168.186 1168.186 18 18 18 18 18 200 200 200 200 200 159 161 163 163 163 20 60 20 30 60 16 48 16 24 49 88 88 88 88 88 838 848 857 857 857 20 60 20 30 60 16 48 16 24 49 Permitted 6-mo Measured 6-mo Median (ug/l) Median (ug/I)4/2/2010 4/7/2010 4/15/2010 4/21/2010 4/28/2010 10:57 10:53 14:02 7:51 13:47 22 22 22 22 22 4 4 4 4 4 Footnote:

(1) -calculated using the following formula: (1 0A(-0.43*log(time)+1.8)*1 1 where "time" is duration of chlorination, "11" is dilution factor at SONGS (2) -calculated using the following formula: 0.00834*(permitted inst max)*(flow)*2/24 (3) -calculated using the following formula: 0.00834*(measured inst max)*(flow)*2/24 (4) -calculated using the following formula: 0.00834*(permitted daily max)*(flow)

(5) -calculated using the following formula 0.00834*(calculated daily max)*(flow)*2/24 calculated daily max = (measured inst max)*2/24 measured 6 month median = (median 6 month rolling average concentration)*2/24 Sationld:TWC 41 I)Source:NOAVNOS/COO-PS Stalion Typc:Subordinalc Time D- W'iff L.. I) T 3 Danuninmca lower low waler (MLL\W) wbich is Ihct chiri dawn) of soundings NOAA Tide Predictions San Clemente,,2010 fae Times and Heights of High and Low Waters (72 b April May June Time Height Time Height Time Height Time Height Time Height Time Height h m 1 05:24 AM Th 11:32 AM 04:53 PM 11:08 PM 2. 06:15 AM F 12:28 PM" 05:25 PM 11:48 PM ii-0.8 3.9 1.2 5.6-0.5'3.3 1.7 5.2 cm-24 119 37 171 52 158 3 07:13 AM -0.1 -3 01:41 PM 2.9 88 Se 05:59 PM 2.2 67 4 12:34 AM 08:25 AM 6u03:43 PM 06:49 PM 5 01:39 AM 09:54 AM 06:07 PM 09:03 PM 4.7 0.3 2.7 2.6 4.2 0.5 3.0 2.8 3.9 0.5 3.3 2.6 143 9 82 79 128 15 91 85 16 Tu 03:13 AM 11:14 AM 06:42 PM 11:11 PM 119 15 101 79 7 04:46 AM 3.9 W 12:10 PM 0.4 07:03PM 3.6 110 8 12:17 AM 05:54 AM Th 12:48 PM 07:20 PM 9 12:59 AM 06:43 AM 01:18 PM 07:37 PM 10 01:33 AM 07:24 AM Sa 01:43 PM 07:56 PM 11 02:05 AM 08:00 AM Su 02:08 PM 08:16 PM 12 02:37 AM 08:36 AM M 02:32 PM 08:39 PM 13 03:09 AM 09:11 AM Tu 02:57 PM 09:03 PM 14 03:42 AM 09:48 AM W 03:21 PM 09:28 PM 15 04:18 AM 10:27 AM Th 03:46 PM 09:56 PM 2.2 4.0 0.3 3.9 1.7 4.2 0.3 4.2 1.2 4.3 0.3 4.5 0.7 4.4 0.4 4.8 0.3 4.3 0.6 5.1-0.1 4.2 0.7 5.4-0.3 4.1 1.0 5.5 67 122 9 119 52 128 9 128 37 131 9 137 21 134 12 146 9 131 18 155-3 128 21 165 125 30 168 h C 16 04:57 AM F 11:10 AM 04:11 PM 10:27 PM 17 05:42.AM Sa12:02 PM Se 04:39 PM 11:04 PM 18 06:35 AM 01:08 PM Su 05:11 PM 11:49 PM 19 07:40 AM 02:37 PM M 06:03 PM 20 12:51 AM 08:55 AM Tu 04:17 PM 08:04 PM 21 02:18 AM 10:09 AM W 05:20 PM 10:09 PM 22 03:54 AM Th 11:12 AM Th 06:01 PM 11:34 PM 23 05:16 AM F 12:03 PM F 06:36 PM 24 12:36 AM 06:24 AM Sa 12:47 PM 07:09 PM 25 01:28 AM 07:23 AM 01:26 PM 07:43 PM 26 02:15 AM 08:15 AM M 02:03 PM 08:17 PM 27 03:00 AM 09:05 AM Tu 02:39 PM 08:51 PM 28 03:44 AM 09:54 AM W 03:14 PM 09:26 PM 29 04:27 AM 10:42 AM Th 03:49 PM 10:01 PM 30 05:12 AM 11:32 AM F 04:24 PM 10:38 PM 4.8 146 0.0 0 3.0 91 2.7 82 4.5 137 0.0 3.5 107 2.5 76 4.4 134-0.1 -3 4.0 122 1.8 55 4.4 134-0.1 -3 4.6 140 1.1 34 4.5 137 0.0 0 5.1 155 0.3 9 4.5 137 0.1 3 5.6 171-0.4 -12 4.5 137 0.4 12 6.0 183-0.9 -27 4.4 134 0.7 21 6.2 189-1.1 -34 4.1 1 1.0 6.2 189-1.2 -37 3.9 119 1.4 43 6.0 183-1.0 -30 3.6 110 1.8 55 5.7 174 it-0.5 3.5 1.5 5.6-0.5 3.2 1.8 5.4-0.3 2.9 2.2 5.2-0.1 2.8 2.5 cm-15 107 46 171-15 98 55 165-9 88 67 158-3 85 76 h m 1 05:58 AM Sa 12:26 PM 05:01 PM 11:17 PM 2. 06:49 AM 01:31 PM Su 05:43 PM 3 12:01 AM 07:46 AM M 02:52 PM 06:44 PM 4 12:55AM 08:49 AM Tu 04:22 PM 08:26 PM 5 02:09 AM 09:53 AM W 05:18 PM 10:17 PM 6 03:37 AM 10:49 AM Th 05:50 PM 11:36 PM 7 04:57 AM F 11:34 AM 06:15 PM 8 12:28AM 06:01 AM Se 12:11 PM 06:39 PM 9 01:08 AM 06:53 AM Su 12:44 PM 07:04 PM 10 01:44 AM 07:39 AM M 01:15 PM 07:30 PM 11 02:19 AM 08:22 AM Tu 01:45 PM 07:57 PM 12 02:54 AM , 09:04 AM W 02:16 PM 08:27 PM 13 03:31 AM T, 09:46 AM Tn 02:47 PM 08:59 PM 14 04:10 AM I 10:30 AM F 03:20 PM 09:34 PM 15 04:52 AM 11:18 AM Sa 03:56 PM 10:12 PM-0.7 3.3 2.1 5.3-0.3 3.1 2.4 4.8 0.1 3.1 2.7 4.3 0.4 3.2 2.8 3.9 0.6 3.5 2.6 3.6 0.7 3.8 2.2 3:5 0.8.4.1 1.7 3.6 0.9 4.5 1.1 3.6 1.0 4.8 0.6 3.7 1.1 5.2 0.0 3.7 1.3 5.5-0.4 3.7 1.4 5.8-0.7 3.7 1.6 6.0-0.9 3.6 1.7 6.1-1.0 3.5 1.9 6.0 cm-21 101 64 162-9 94 73 146 3 94 82 131 12 98 85 119 18 107 79 110 21 116 67 107 24 125 52 110 27 137 34 110 30 146 18 113 34 158 0 113 40 168-12 113 43 177-21 113 49 183-27 110 52 186-30 107 58 183 h m 16 05:38 AM Su 12:10 PM 04:38 PM 10:56 PM 17 06:28 AM 01:10 PM M 05:31 PM 11:46 PM 18 07:24 AM 02:16 PM Tu 06:46 PM 19 12:48 AM 08:22 AM W 03:22 PM 08:22 PM 20 02:04 AM 09:23 AM Tn 04:20 PM 10:01 PM 21 03:31 AM 10:20 AM F 05:09 PM 11:24 PM 22 04:58 AM 11:14 AM Sa 05:52 PM 23 12:30 AM 06:15 AM Su 12:02 PM 06:32 PM 24 01:25 AM 07:22 AM M 12:47 PM 07:11 PM 25 02:13 AM 08:20 AM Tu 01:30 PM 07:49 PM 26 02:57 AM 09:11 AM W 02:10 PM 08:26 PM 27 03:39 AM_, 09:59 AM Th 02:50 PM 09:04 PM 28 04:20 AM F 10:44 AM 03:28 PM 09:41 PM 29 05:00 AM 11:28 AM Sa 04:07 PM 10:18 PM 30 05:41 AM 12:13 PM Su 04:47 PM 10:56 PM 31 06:22 AM 01:01 PM M 05:32 PM 11:35 PM it-1.0 3.4 2.1 5.8-0.8 3.3 2.3 5.5-0.6 3.4 2.5 5.0-0.3 3.7 2.5 4.5 0.0 4.1 2.1 4.1 0.3 4.6 1.5 3.8 0.5 5.1 0.7 3.7 0.8 5.6 0.0 3.7 1.1 5.9-0.6 3.7 1.3 6.2-1.0 3.7 1.5 6.3-1.1 3.7 1.7 6.2-1.1 3.6 1.9 6.0-1.0 3.6 2.1 5.8-0.7 3.5 2.3 5.4-0.4 3.4 2.4 5.0 cm--30 104 64 177-24 101 70 168-18 104 76 152-9 113 76 137 0 125 64 125 9 140 46 116 15 155 21 113 24 171 0 113 34 180-18 113 40 189-30 113 46 192-34 113 52 189-34 110 58 183-30 110 64 177-21 107 70 165-12 104 73 152 C m It 1 07:05 AM -0.1 Tu 01:53 PM 3.4 06:27 PM 2.6 2 12:19 AM 07:49 AM W 02:46 PM 07:39 PM 3 01:11 AM 08:35 AM Tb 03:37 PM 09:08 PM 4 02:20 AM 09:22 AM F 04:22 PM 10:37 PM 5 03:45 AM 10:09 AM 05:01 PM 11:48 PM 6 05:11 AM 10:54 AM 05:37 PM 7 12:40 AM 06:25 AM M 11:38 AM 06:12 PM 8 01:23 AM 07:25 AM Tu 12:21 PM 06:46 PM 9 02:02 AM 08:16 AM W 01:02 PM 07:22 PM 10 02:41 AM 09:01 AM Th 01:43 PM 08:00 PM 11 03:20 AM 09:44 AM F 02:25 PM 08:40 PM 12 04:01 AM 10:27 AM Se 03:08 PM 09:22 PM 13 04:43 AM 11:11 AM Su 03:54 PM 10:06 PM 14 05:26 AM 11:57 AM M 04:45 PM 10:53 PM 15 06:11 AM 12:46 PM Tu 05:43 PM 11:43 PM 4.5 0.3 3.5 2.7 4.0 0.6 3.7 2.6 3.5 1.0 4.0 2.2 3.2 1.2 4.3 1.7 3.0 1.5 4.7 1.1 3.0 1.7 5.0 0.5 3.2 1.8 5.4-0.1 3.3 1.9 5.8-0.6 3.5 1.9 6.1-1.0 3.6 1.9 6.4-1.2 3.7 1.9 6.5-1.4 3.7 2.0 6.4-1.3 3.8 2.0 6.2-1.1 3.9 2.0 5.7 cm-3 104 79 137 9 107 82 122 18 113 79 107 30 122 67 98 37 131 52 91 46.143 34 91 52 152 15 98 55 165-3 101 58 177-18 107 58 186-30 110 58 195-37 113 58 198-43 113 61 195-40 116 61 189-34 119 61 174 h m 16 06:58 AM W 01:37 PM 06:53 PM 17 12:41 AM 07:45 AM Th 02:31 PM 08:14 PM 18 01:49 AM F 08:36 AM 03:26 PM 09:45 PM 19 03:13 AM^ 09:29 AM a 04:20 PM 11:13 PM 20 04:47 AM 10:25 AM Su 05:12 PM 21 12:26 AM 06:20 AM M 11:22 AM 06:01 PM 22 01:24 AM 07:36 AM Tu 12:17 PM 06:48 PM 23 02:12 AM 08:35 AM 01:09 PM 07:31 PM 24 02:55 AM 0921 AM Th 01:56 PM 08:12 PM 25 03:33 AM 10:00 AM F 02:38 PM 08:51 PM 26 04:09 AM 10:36 AM Sa 03:18 PM 09:28 PM 27 04:44 AM 11:09 AM Su 03:56 PM 10:03 PM 28 05:17 AM , 11:42AM M 04:35 PM 10:38 PM 29 05:49 AM 12:17 PM Tu 05:15 PM 11:12 PM 30 06:21 AM 12:52 PM W 06:00 PM 11:48 PM ft-0.7 4.1 2.1 5.1-0.3 4.4 2.0 4.3 0.3 4.7 1.7 3.7 0.8 5.1 1.1 3.3 1.3 5.4 0.5 3.2 1.6 5.7-0.1 3.3 1.9 6.0-0.6 3.4 2.0 6.1-0.8 3.6 2.1 6.2-0.9 3.7 2.1 6.1-0.9 3.7 2.1 6.0-0.8 3.8 2.1 5.8-0.6 3.8 2.1 5.5-0.3 3.8 2.2 5.1 0.0 3.9 2.3 4.7 cm-21 125 64 155-9 134 61 131 9 143 52 113 24 155 34 i10 40 165 15 98-.49 174-3 101 58 183-18 104 61 186-24 110 64.189-27 113 64 186-27 113 64 183-24 116 64 177-18 116 64 168-9 116 67 155 0 119 70 143-0.5 -15 1.2 5.6 171£ .1. 1.Disclaimer:

These data are based upon the latest information available as of the date of your request, and may differ from the published tide tables.Referenced to Station: SAN DIEGO (Broadway) ( 9410170 ) Height offset in feet ( tow:0.92 high: 0.92) Time offset in mins ( low:-1 1 high: -15)Generated On: Mon May 17 17:23:48 GMT 2010 Page 3 ol 5 Southern California Edison Monthly Report Facility : Songs Unit 3 Exact Sample Point: Page 11 of 20 Point of Discharge Order No : R9-2005-0006 Report Freq: Monthly Collected By: Report For: April 2010 Analyzed By: Report Due: Jun 01, 2010 Signed Waste-Stream-:

Polishing Demineralizer System (Low Volume Waste)Songs Envir Grp Songs Envir Grp Environmental Engineer Date &Parameter Units Sample Req't Req't Result Time Type Type Value Value Collected mg/I 30-Day 30 3.1 4/2412010 S e bs/day Avg 28.00 1.51 08:50 pm Suspended Solids mg/ Daily 100 3.1 4/24/2010 Ibs/day GRAB Max 96.00 2.90 08:50 pm mg/I 30-Day 15 < 5.0 4124/2010 Grease lbs/day GRAB Avg 14.40 < 2.44 07:06 pm and Oil mg/I Daily 20 < 5.0 4/24/2010 lbs/day GRAB Max 18.40 < 4.67 07:06 pm Southern California Edison Monthly Report Facility : Songs Unit 3 Exact Sample Point: Page 12 of 20 Point of Order No : Report Freq: Report For: Report Due: Waste Stream.: R9-2005-0006 Monthly C April 2010 Jun 01, 2010.Makeup. Demineralizer (Low Volume Waste):ollected By: ,nalyzed By: Signed: Title: Discharge Songs Envir Grp., Songs Envir Grp Environmental Engineer Date &Parameter Units Sample Req't Req't Result Time Type Type Value Value Collected mg/I 30-Day 30 1.0 4129/2010 S d bseday dAvg 55.82 0.46 08:02 am Suspended Solids mg/ Daily 100 1.4 4/24/2010 lbs/day GRAB Max 154.63 2.16 01:12 pm mg/I 30-Day 15 < 5.0 4/24/2010 Grease lbs/day GRAB Avg 23.19 < 2.32 01:12 pm and Oil mg/ G Daily 20 < 5.0 4/24/2010 lbs/day GRAB Max 30.37 < 7.71 01:12 pm Southern California Edison Monthly Report Page 13 of 20 Facility: Order No:.Report Freq: Report For: Report Due: Waste Stream: SONGS Unit 3 R9-2005-0005 Monthly April 2010 June 1, 2010 Radwaste System (Low Volume Waste)Exact Sample Point: Collected By: Analyzed By: Signed: Title: Point of Discharge SONGS Environmental Group SOi SEPG/Sierra.Analytical Environmental Engineer Date &Parameter Units Sample Type Req't Req't Result Time Type Value Value Collected mg/l 30-Day 30 ý 0.4 4/19/2010 Total lbs/day GRAB Avg 5.8 0.08 7:55 PM Suspended Solids mg/l 30-Day 100 0.4 4/19/2010 lbs/day GRAB Avg 19.2 0.08 7:55 PM mg/l 30-Day 15 < 5.0 4/19/2010 Grease lbs/day GRAB Avg 2.9 < 0.96 7:55 PM and Oil mg/l 30-Day 20 < 5.0 4/19/2010 lbs/day GRAB Avg 3.8 < 0.96 7:55 PM Southern California Edison Monthly Report Facility : Order No: Report Freq: Report For: Report Due:.Waste Stream_:..._

Sump Songs Unit 3 R9-2005-0006 Monthly April 2010 Jun 01, 2010.Intake Structure (Low Volume Waste)Exact Sample Point: Page 14 of 20 Point of Discharge Collected By: Analyzed By: Signed : Title : Songs Envir Grp Songs Envir Grp Environmen al Engineer Date &Parameter Units Sample Req't Req't Result Time Type Type Value Value Collected mg/I 30-Day 30 0.4 4127/2010 Total lbs/day GRAB Avg 17.50 0.23 10:36 am Suspended Solids mg/ Daily 100 0.4 4/27/2010 lbs/day GRAB Max 58.33 0.23 10:36 am mg/I 30-Day 15 < 5.0 4/27/2010 Grease lbs/day GRAB Avg 8.75 < 2.92 10:36 am and Oil mg/l Daily 20 < 5.0 4/27/2010 bs/d GRAB Max 11.67 < 2.92 10:36 am Southern California Edison Monthly Report Facility : Order No: Report Freq: Report For: Report Due: Waste Stream..: Songs Unit 3 R9-2005-0006 Monthly April 2010 Jun 01, 2010 Plant Drains (Low Volume Waste)Exact Sample Point : Page 15 of 20 Point of Discharge Collected By : Analyzed By: Signed : Title: Songs Envir Grp Songs Envi Grp Environmental Engineer Date&Parameter Units ample Req't Req't Result Time Type Type Value Value Collected mg/I 30-Day 30 0.9 4/7/2010 Suspended

• bs/day Avg 12.50 0.38 06:50 am Solids mg/ Daily 100 0.9 4/7/2010 Ibs/day Max 41.88 0.38 06:50 am mg/I 30-Day 15 < 5.0 4/7/2010 Grease lbs/day GRAB Avg 6.25 < 2.09 06:50 am and Oil mg/I Daily 20 < 5.0 4/7/2010 lbs/day GRAB Max 8.13 < 2.09 06:50 am Southern California Edison Monthly Report .... .Page 20 of 20 ..Facility:

SONGS Unit 3 Exact Sample Point: Point of Discharge Order No: R9-2005-0006 Report Freq: Monthly Collected By: SONGS Environmental Group Report For: April 2010 Analyzed By: SONGS EPG/Sierra Analytical ReportDue:

June 1,2010 Signed: )Waste Stream: Sewage Treatment Title: Environmental Engineer Daily Max Monthly Avg.Units Sample Type Date/Time Value Req't Value Req't Sewage -Unit I INF mg/I GRAB 4/28/10 285.0 --285.0 --TSS lbs/day 12:35 57.0 --40.4 --EFF mg/I GRAB 4/28/10 < 2.0 75 < 2.0 25 G&O lbs/day 12:40 < 0.4 15.0 < 0.3 3.5 EFF mg/I GRAB 4/28/10 8.0 --8.0 --TSS lbs/day 12:43 1.6 --1.1 --Settleable mI/I GRAB 4/28/10 < 0.1 3.0 < 0.1 1.0 Solids 12:43 4/28/10 pH Units GRAB 12:45 7.2 6.0-9.0 7.2 6.0-9.0 4/28/10 Turbidity NTU GRAB 12:43 5.8 225 5.8 75 Sewage -Mesa INF mg/I GRAB 4/28/10 314.0 --314.0 --TSS lbs/day 10:49 44.5 --26.2 --EFF mg/I GRAB 4/28/10 < 2.0 75 < 2.0 25 G&O lbs/day 10:58 < 0.3 10.6 < 0.2 2.1 EFF mg/I GRAB 4/28/10 22.0 --22.0 --TSS lbs/day 10:53 3.1 --1.8 --Settleable mil/I GRAB 4/28/10 1.2 3.0 1.2 1.0 Solids 10:53 4/28/10 pH Units GRAB 10:45 7.3 6.0-9.0 7.3 6.0-9.0 4/28/10 Turbidity NTU GRAB 10:53 8.4 225 8.4 75 Sewage discharged to Unit 3 outfall