ML042390451
| ML042390451 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 08/16/2004 |
| From: | Scherer A Southern California Edison Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML042390451 (23) | |
Text
SOUTHERN CALIFORNIA Li EDISON' An EDISON INTER4NATIONAL I Company A. Edward Scherer Manager of Nuclear Regulatory Affairs August 16, 2004 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555
Subject:
Docket No. 50-362 Report: Exceeding NPDES Temperature Permit Limits San Onofre Nuclear Generating Station (SONGS), Unit 3
Reference:
Letter, H. W. Newton (SCE) to John Robertus (California Regional Water Quality Control Board, San Diego Region), "NPDES June 2004 Discharge Monitoring Report, San Onofre Nuclear Generating Station Unit 3,f July 30, 2004 Gentlemen:
On June 4, 2004, due to a large ingress of sea grass (and mud) on the traveling screens, the Unit 3 circulating water delta temperature exceeded 25 degrees for eight minutes. Southern California Edison (SCE) reported this condition to the California Regional Water Quality Control Board (RWQCB), San Diego Region (see attached letter).
SONGS Unit 3 Facility Operating License (No. NPF-15), Appendix B, Section 3.2, require violations of the National Pollution Discharge Elimination System (NPDES)
Permit or State certification (pursuant to Section 401 of the Clean Water Act), to be reported to the NRC by submitting copies of the reports required by the NPDES Permit or certification. Accordingly, a copy of the report submitted to the RWQCB is provided as an attachment to this letter.
If you have any questions, please contact Mr. Clay E. Williams at (949) 368-6707.
Sincerely, Attachment cc:
B. S. Mallett, NRC Regional Administrator, Region IV B. M. Pham, NRC Project Manager, San Onofre Units 2, and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 P.O. Box 128 San Clemente, CA 92672 949-368-7501 Fax 949-368-7575
- i-e
SOUTHERN CALIFORNIA EDISON JUL 3 0 2004 An EDISOMN NrERNATIONAL " Company Mr. John Robertus California Regional Water Quality Control Board San Diego Region 9174 Sky Park Ct. Suite 100 San Diego, California 92123 IC: 13-0088.01: NAVRH
SUBJECT:
NPDES June 2004 Discharge Monitoring Report San Onofre Nuclear Generating Station, Unit 3
Dear Mr. Robertus:
SCE submits the subject report in accordance with the requirements of Order No. 99-48 (NPDES Permit No. CA0108 181). All sampled water sources were found to be within permit limits. On 6/4/04, a large ingress of red sea grass and mud clogged the traveling screens at Unit 3. This resulted in a high differential circulating water pressure and subsequent manual shutdown of the plant. During the transient, circulating water delta temperature exceeded 25 degrees F for eight minutes. Since this occurred between the times recorded on the circulating water temperature data logger, there was no data point saved on the instrument used for NPDES reporting. Thus there is no data during the transient detailed in the attached discharge monitoring report. The plant was restarted and the circulating water temperature has been within NPDES limits since that time.
Pursuant to Order No. 99-48, Reporting Requirement 10, the following representative has prepared and is authorized to sign the reports required by this order: Robert K. Heckler, Environmental Engineer.
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 ewton Manager, Site Support Services Enclosure cc:
Environmental Protection Agency, Region a San Onofre Nuclear Generating Station P. 0. Box 128 San Clemente, CA 92674-0128
Southern California Edison Monthly Report Facility:
Order No:
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Songs Unit 3 99-48 Monthly June 2004 Jul 30, 2004 Water Intake and Combined Discharge Exact Sample Poin Page 1 of 18 It:
Intake and Discharge Conduits Collected By:
Songs Envir Grp Analyzed By:
Songs rr
- Grp, Signed:
Title:
nvironmen ng 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 6-1-04 6-2-04 6-3-04 6-4-04 6-5-04 6-6-04 6-7-04 6-8-04 6-94 6-10-04 6-11-04 6-12-04 6-13-04 6-14-04 6-15-04 6-16-04 6-17-04 6-18-04 6-19-04 6-20-04 6-21-04 6-22-04 6-23-04 6-24-04 6-25-04 6-26-04 6-27-04 6-28-04 6-29.04 6-3-04 84 86 88 75 69 76 88 88 89 89 90 88 90 91 90 90 90 89 89 86 83 85 86 86 87 88 88 89 89 90 65 66 68 69 68 69 69 69 70 70 70 70 71 71 70 70 70 70 69 66 64 66 66 67 68 68 69 70 70 70 68 68 70 69 69 70 70 70 70 71 70 71 71 71 71 71 71 70 70 68 68 68 68 68 69 69 70 70 70 71 19 19 20 6
1 7
18 19 19 19 20 18 19 20 20 20 19 20 20 20 20 19 19 19 19 19 19 19 20 20 20 20 20 20 1
14 19 19 19 20 20 21 20 20 20 20 20 20 20 20 20 20 20 19 20 20 19 19 20.
20 Avg I
87 69 70 18 19 Reqt I 25 25
Southern California Edison Monthly Report Page 2 of 18 Facility:
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Songs Unit 3 99-48 Monthly Exact Sample Point: Intake and Screenwell Collected By:
Instrumentation June 2004 Analyzed By:
SE i Grp Jul 30, 2004 Signed 4I-rHA.
Intake Conduit and Signed :
Screenwell Heat Treatment
Title:
nironm t Engineer Intake Conduit and Screenwell Heat Treatment did *NOT* occur this month PARAMETER UNITS REQUIREMENT RESULT Date/Time.
Treatment Began N/A Date/Time N/A Treatment Ended Total Time N/A of Treatment hours Maximum Screenwell Temperature Attained degr 1
NIA (Screenwell Target F
10 Temperature)
Screenwell Target h
Temp Duration hours 21 N/A Following Section only Completed If Screenwell Target Temperature was Exceeded.
Maximum Screenwell Temperature Attained Degrees Above Screenwell Target Temperature Maximum Screenwell Temp Duration
- degr F
degr F
N/A N/A N/A 10 15 min
- Value Varies (From the Mussel Mortality Graph)
- NO HEAT TREAT PERFORMED
Southern California Edison Monthly Report Page 3 of 18 Facility:
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Songs Unit 3 Ex; 99-48 Monthly Col June 2004 An Jul 30, 2004 Intake Conduit and Screenwell Heat Treatment act Sample Point: Intake and Screenwell Ilected By:
Instrumentation alyzed By: bongs Env-i Gri_ 1-1 Signed :
Title:
r eer Intake Conduit and Screenwell Heat Treatment did *NOT* occur this month PARAMETER UNITS REQUIREMENT RESULT Maximum Intake Conduit Temperature Attained degr (Intake Conduit Target F
125 WA Temperature)
Screenwell Target hours Temp Duration 2.1 N/A Foliowing Section only Completed If Intake Target Temperature was exceeded.
Maximum Intake Conduit Temperature Attained Degrees Above Intake Conduit Target Temperature Maximum Intake Conduit Temp Duration (Minutes) degr F
degr F
- Value Varies (From the Mussel Mortality Curve)
Southern California Edison Monthly Report Page 4 of 18 Facility:
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Songs Unit 3 99-48 Monthly June 2004 Jul 30, 2004 Discharge Conduit Heat Treatment Exact Sample Point Discharge Conduit Collected By: instrumentation Analyzed By: 99n E v Grp Signed :
Title:
Environmental ngineer Discharge Conduit and Screenwell Heat Treatment did *NOT* occur this month PARAMETER UNITS REQUIREMENT RESULT DateTime Treatment Began Date/Time Treatment Ended Total Time of Treatment Maximum Discharge Conduit Temperature Attained (Discharge Condult Target Temperature)
N/A NWA N/A N/A hours degr F
105 Following Section only Completed if Screenwell Target Temperature was Exceeded.
Maximum Screenwell Temperature Attained Degrees Above Screenwell Target Temperature Maximum Screenwell Temp Duration degr F
degr F
min 10 N/A WA N/A 15
- Value Varies (From the Mussel Mortality Graph)
- NO HEAT TREAT PERFORMED
Southern California Edison Monthly Report Page 5 of 18 Facility:
Songs Unit 3 Exact Sample Point:
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99-48 Monthly June 2004 Jul 30, 2004 Combined Discharge Low Volume Waste Collected By: Songs Envir Grp Analyzed By: Songs Envir Grp Signed E
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
'6 17 19 2D 21 22 23 24 25 26 27 28 29 30 Avg I
1,218.882 1,218.866 1,218.751 853.264 1,210.268 1,218.808 1,218.656 1,218.719 1,216.736 1,218.708 1,218.763 1,218.656 1,218.764 1,218.786 1,218.860 1,218.656 1,218.875 1,21 B.656 1,218.877 1,218.744 1,218.656 1,218.786 1,218.656 1,218.787 1,218.910 1,218.849 1,218.831 1,218.920 1,218.994 1,218.711 1,218.586 1,218.586 1,218.586 853.010 1,210.000 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,21 8.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,218.586 1,206.114 0.296 0.280 0.165 0.254 0.268 0.222 0.070 0.133 0.150 0.122 0.177 0.070 0.178 0.200 0.274 0.070 0.289 0.070 0.291 0.158 0.070 0.200 0.070 0.201 0.324 0.263 0.245 0.334 0.408 0.125 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.296 0.280 0.165 0.254 0.268 0.222 0.070 0.133 0.150 0.122 0.177 0.070 0.178 0.200 0.274 0.070 0.289 0.070 0.291 0.158 0.070 0.200 0.070 0.201 0.324 0.263 0.245 0.334 0.408 0.125 0.199 1,206.313 0.199 0.000 Reqt I 1286.900 11.610 0.145 Sewage Treatment Discharged To Unit 1 Outfall
Southern California Edison Monthly Report Page 6 of 18 Facility:
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Songs Unit 3 99-48 Monthly June 2004 Jul 30,2004 Cooling Water Intake Exact Sample Point:
Intake and Discharge Conduits Collected By:
Analyzed By:
Signed:
Title:
Songs Envir Grp virnm talEngineer Parameter Units Sample Req't Req't Result DTate&
Type Type Value Value Collected pH GRAB 8.1 61112004 08:12 pm 61112004 08:12 pm Turbidity NTU GRAB 1.7
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Songs Unit 3 99-48 Monthly June 2004 Jul 30,2004 Combined Discharge Exact Sample Point:
Page 7 of 18 Point of Discharge Collected By:
Songs Envir Grp Analyzed By:
AdSongslnvirGry Signed:
Title :
E om Parameter Units Sample Reqt Req't Result DTte &
Type Type Value Value Collected Turbidity NTU GRAB 5 3 6/08/04 07:46 pm 6/08104 pH GRAB 6-9 8.1 10:49 pm Hd ugl GRAB Inst 34D 4.0 6104/04 yrazine lbs/day Max 3954 40.7 04:00 pm ug/l Inst 200 130.0 6/08/04 Total Ibs/day GRAB Max 2100 55.1 10:49 pm Chlorine Residual Daly 88 4 7 10:4 ughl GRAB Dal881.
6//0 lbs/day Max 940 47 10:49 pmn
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Songs Unit 3 E
99-48 Monthly
(
June 2004 j
Jul 30,2004 Thermophilic Digester (Low Volume Waste)
Exact Sample Point:
Page 8 of 18 Point of Discharge Collected By:
Analyzed By:
Signed:
Title:
Songs Envir Grp A)Songs 7vr G,
EnvionmetaCng neer Parameter Units Sample Req't Req't Result DTime&
Type Type Value Value Collected Total Ibslday GRAB Monthly 30 Suspended lsdyAvg 2.5 Solids mgt Inst 100 Ibs/day GRAB Max 8.3 mg/I Monthly 15 Grease lbs/day GRAB Avg 1.3 and Oil mg/
G Inst 20 Ibsda GRAB Max 1.7 lbs/day_
- NO FLOW - SYSTEM NOT INSTALLED
Southern California Edison Monthly Report Facility:
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Page 9 of 18 Point of Discharge Songs Envir Grp Songs E vir Grp nmnInic'ffneDI Report Due:
Waste Stream:
Overboard Jul 30,2004 Condenser Hotwell (Low Volume Waste)
Signed Title IEnP0 or Parameter Units Sample Req't Req't Result Date &
Type Type Value Value Collected mg/l Monthly 30 5.0 6/4/2004 ToStl lbs/day GRAB Avg 1800 0.31 10:23 am Suspended Solids mg/
Inst 100 5.0 6/4/2004 lbsIday GRAB Max 6000 4.21 10:23 am mg/I Monthly 15 5.0 6/412004 Grease Ibs/day GRAB Avg 900 0.31 10:23 am and Oil mgIl GRAB Inst 20 5.0 6/412004 GbsBday Max 1200 c
4.21 10:23 am
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/
Waste Stream:
Steam Generator Title En, Overboard (Low Volume Waste) int:
Page 10 of 18 Point of Discharge Songs Envir Grp son s; nvi vo ta Engineer Sample Req't Req't Result DTate&
Parameter Units Type Type Value Value Collected Total I
GRAB Monthly 30 oal lbs/day GRB Avg 180**
Suspended Solids mg/
Inst 100 lbs/day GRAB Max 600 mgA Monthly 15 Grease lbs/day GRAB Avg 90 and Oil
/Irn GRAB Inst 20 lbs/day Max 120
- NO FLOW IN JUNE 2004
Southern California Edison Monthly Report Page 11 of 18 Facility:
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System Regeneration Songs Unit 3 E
99-48 Monthly C
June 2004 Jul 30, 2004 Blowdown Processing (Low Volume Waste)
- xact Sample Point:
Point of Discharge Collected By:
Songs Envir Grp Analyzed By: -
Songs, lnvir Grp Signed:
4J
Title:
rnme En neer Date &
Sample Req't Req't Result Time Parameter Units Type Type Value Value Collected mg/I Monthly 30 Total lbs/day GRAB Avg 21 Suspended Solids mg/
Inst 100 lbs/day GRAB Max 71 mgIl Monthly 15 Grease lbs/day GRAB Avg and Oil mgGi Inst 20 lbs/day GRAS Max 14
- NO FLOW IN JUNE 2004
Southern California Edison Monthly Report Facility :
Songs Unit 3 Exact Sample Poi Order No:
99-48 Report Freq:
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Report For:
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int:
Page 12 of 18 Point of Discharge Report Due:
Jul 30,2004 Waste Stream:
Full Flow Cond.
Polish Demineralizer (Low Volume Waste)
Signed:
Title:
En Songs Envir Grp ASongs E ir Grp lviomna ngineer Date &
Parameter Units Sample Req't Req't Result Time Type Type Value Value Collected mg/I Monthly 30 5.0 6/1/2004 Total lbs/day GRAB Avg 350 2.07 09:50 am Suspended Solids mg/
B Inst 100 5.0 6/1/2004 lbs/day GRA Max 1200 10.26 09:50 am mg/I Monthly 15 5.0 6/1/2004 Grease lbs/day GRAB Avg 180 2.07 08:00 am and Oil mg GAB Inst 20 5.0 6/1/2004 IbGRAB Max 230 10.26 08:00 am
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Songs Unit 3 99-48 Monthly June 2004 Jul 30,2004 RadWaste System (Low Volume Waste)
Exact Sample Point:
Page 13 of 18 Point of Discharge Collected By:
Analyzed By:
Signed:
Title:
Songs Envir Grp Songs Envir Grit Parameter Units Sample Req't Req't Result Date&
Type Type Value Value Collected mg/l Monthly 30 5.0 6/2/2004 Total lbs/day GRAB Avg 110 0.04 10:40 pm Suspended Solids mgl Inst 100 5.0 6/2/2004 Ibslday GRAB Max 360 0.63 10:40 pm mg/I Monthly 15 5.0 6/212004 Grease lbs/day GRAB Avg 54 0.04 10:40 pm and Oil mg/l Inst 20 5.0 612/2004 lbs/day GRAB Max 72 0.63 10:40 pm
- SAMPLE OBTAINED ON A MISCELLANEOUS RADWASTE TANK
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Songs Unit 3 99-48 Monthly June 2004 Jul 30,2004 Building Sumps (Low Volume Waste)
Exact Sample Point:
Page 14 of 18 Point of Discharge Collected By:
Analyzed By:
Signed:
Title:
Songs Envir Grp Songs Envineer Envrometa Engineer Parameter Units Sample Req't Req't Result Datem&
Type Type Value Value Collected mg/I Monthly 30 Total lbsiday GRAB Avg 200 SuspendedAv20 Solids mg/
Inst 100 lbs/day GRAB Max 100 mgA Monthly 15 Grease Ibslday GRAB Avg 100 and Oil lbs/a GRAB Inst 20 Ibsiday GRB Max 130**
- DISCHARGED TO UNIT 2 OUTFALL
Southern California Edison Monthly Report Facility:
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Page 15 of 18 Point of Discharge Songs Envir Grp Report For:
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June 2004 Jul 30,2004 Intake Sump (Low Volume Waste)
Analyzed By:
Signed:
Title:
Songs nvir Gr Engineer Parameter Units Sample Req't Req't Result Dtre Type Type Value Value Collected Tng G
Monthly 30 5.0 6116/2004 Total Ibslday GRAB Avg 72 2.92 12:45 pm Suspended Solids mg/
Inst 100 5.0 6/1612004 lbslday GRAB Max 240 2.92 12:45 pm mgII Monthly 15 5.D 611612004 Grease Ibs/day GRAB Avg 36 2.92 12:45 pm and Oil mg/Il GRAB Inst 20 5.0 6/16/2004 lbs/day Max 48 2.92 12:45 pm
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Songs Unit 3 E
99-48 Monthly June 2004 Jul 30, 2004 Makeup Demineralizer (Low Volume Waste)
Exact Sample Point:
Page 16 of 18 Point of Discharge Collected By:
Analyzed By:
Songs Envir Grp E>vSongs Envir Grp Envirnme Eginer Signed Title Parameter Units Sample Req't Req't Result Date &
Type Type Value Value Collected mg/i Monthly 30 10.7 6/24/2004 Total lbs/day GRAB Avg 170 6.35 12:20 pm Suspended Solids mg G
Inst 100 26.9 6/24/2004 lbs/day GRAB Max 560 59.23 12:20 pm mg/I Monthly 15 5.0 6/812004 Grease lbs/day GRAB Avg 84 2.97 09:05 pm and Oil g/
GRAB Inst 20 5.0 6/8/2004 lbs/day Max 110 11.01 09:05 pm
Southern California Edison Monthly Report Facility:
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Sewage Treatment
Title:
Env Page 17 of 18 Point of int :
Discharge Songs Envir Grp
~ongsCh mist vernmetaEngineer Daily Max Monthly AvQ Sample Date/time Sample Req't Sample Req Units Type of Sample Value.
Value Value Value Sewacie - - Unit I Inf mg/l 13:55 523.0 523.0 T.S.S lbs/day GRAB 617/2004 257.3 163.0 EFF mg1I G
08:00 5.0 75 c
5.0 25 G&O lbs6day 61012004 2.5 63 1.6 21 EFF mg/
14:00 45.0 130.8 45 130.8 T.S.S bs/day GRAB 6172004 22.1 64.3 14.0 40.7 Sett.
mI0 GRAB 0
2 3.0 0.3 1.0 Solids 6/2912004 08:00 pH Units GRAB 7.4 6.0 - 9.0 7.4 6.0 - 9.0 Turbidity NTU GRAB 08:00 7.8 225 7.8 75 6110/2004 Sewacie - - Mesa tnf mg/A T.S.S lbs/day GRAB EFF mg/I752 G&O Ibs/day GRAB 63 21 EFF mg/l RA T.S.S lbs/day GRAB Solds mi/I GRAB 3.0 1.0 pH Units GRAB 6.0 - 9.0 6.0 - 9.0 Turbidity NTU GRAB 225 75 Sewage Treatment Discharged To Unit I Ouffall
- Mesa Sewage Treated at Unit 1 Sewage Treatment Plant
June 2004 In-Plant Waste Flows Unit I Plant Drains Ul Sewage Treatment Plant Mesa Sewage Treatment Plant Ul Radwaste S/G Draindown Metal Cleaning 300,000 1,110,000 0
0 0
0 gal gal gal gal gal gal Unit 2 HFMUD FFCPD Intake Sump Building Sump S/G Blowdown Hotwell Overboard Metal Cleaning Thermophillic Digester BPS Sump U2 Radwaste 2,454,000 gal 1,510,000 gal 2,100,000 gal 1,500,000 gal 0 gal 0 gal O gal 0 gal O gal 0 gal
Unit 3 BFMUD FFCPD Intake Sump Building Sump SIG Blowdown Hotwell Overboard Metal Cleaning Thernophillic Digester BPS Sump U3 Radwaste 2,275,000 gal 1,490,000 gal 2,100,000 gal 0 gal 0 gal 221,000 gal 0 gal 0 gal O gal 30,000 gal
Chlorine Sample Calculations San Onofre Units 2 and 3 chlorinate four times per day for each unit at a duration of 25 minutes.
The instantaneous limit for total residual chlorine is therefore calculated using the equation in the NPDES permits for each unit under discharge specification B.1 as follows:
log y = -0.43(log x) + 1.8 Where y = the water quality objective (in ug/1) to apply when chlorine/bromine is being discharged x = the duration of uninterrupted chlorine/bromine discharge in minutes The result of the above formula must be multiplied by a dilution factor to arrive at the time weighted effluent discharge limit. In the case of San Onofre Units 2 and 3, this dilution factor equals 11.
The USEPA BAT effluent limitation contained in 40 CFR 423 is 0.20 mngI.
To obtain the instantaneous limit under discharge specification B.1 for San Onofre Units 2 and 3, you can calculate as follows:
log y = -0.430og 25) + 1.8 Log y = 1.9889 y = 15.808(11) = 173.89 ugh converting to mg/l 173.89/1000 = 0.174 mg/I for a 25 minute chlorination duration The MER limit (lb/day) = 8.34 x C x Q x Z/24 where C = effluent concentration limit as calculated above (mg/l)
Q = discharge flowrate (MGD)
Z = total time (hours of chlorine/bromine is discharged per day)
For Unit 2 in the month of June 2004, the limit would be calculated as follows:
MER limit (lbs/day) = 8.34(0.10)(1218.882)(2/24) = 84.71 lb/day (for sample on 6/8/04)
For Unit 3 in the month of June 2004, the limit would be calculated as follows:
MER limit (lbs/day) = 8.34(0.13)(1218.719)(2/24) = 110.1 Ilb/day (for sample on 6/8/04)
June 2004 Coliform Sample Results Total Fecal Enterococcus Surf Zone Locations (sampled 6/2/04)
N. San Onofre Beach
< 1
< 1 6
SurfZone Locations (sampled 6/7/04)
N. San Onofre Beach 6
2 7
Trail6 3
1 1
Suff Zone Locations (sampled 6114/04)
N. San Onofre Beach 2
< 1
< 1 Offshore Stations (sampled 6/1/04)
STA-1 TOP
< 1 1
< 1 STA-1 MID
< 1
< 1 1
STA-1 BOT 2
1
< 1 STA-2 TOP
< 1 1
< 1 STA-2 MID
< 1 I
< 1 STA-2 BOT 1
< 1
< 1 SuifZone Stations (sampled 6121104)
N. San Onofre Beach 1
1
< 1 Surf Zone Stations (sampled 6/28/04)
N. San Onofre Beach 11 5
2 All results reported in cfu/100 ml