ML103350639

Seabrook Station - Response to Request for Additional Information - NextEra Energy Seabrook License Renewal Environmental Report

ML103350639
Person / Time
Site:	Seabrook
Issue date:	11/23/2010
From:	Freeman P NextEra Energy Seabrook
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
SBK-L-10185
Download: ML103350639 (32)

Text

NExTera ENERGY f SEAB ROOK November 23, 2010 SBK-L-10185 Docket No. 5 0-443 U.S. Nuclear Regulatory Commission Attention:

Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 Seabrook Station Response to Request for Additional Information NextEra Energy Seabrook License Renewal Environmental Report

References:

1. NextEra Energy Seabrook, LLC letter SBK-L-10077, "Seabrook Station Application for Renewed Operating License," May 25, 2010. (Accession Number ML101590099)

2. NRC Letter "Request for Additional Information for the Review of the Seabrook Station License Renewal Application Environmental Review (TAC NO. ME3959)" October 29, 2010 (Accession Number ML102861217)

In Reference 1, NextEra Energy Seabrook, LLC (NextEra) submitted a application for a renewed facility operating license for Seabrook Station for Seabrook Station Unit 1 in accordance with the Code of Federal Regulations, Title 10, Parts 50, 51, and 54.In Reference 2, the NRC requested additional information in order to complete its review of the License Renewal Application Environmental Report. The Enclosure contains the NextEra Energy Seabrook response to the NRC request for additional information dated October 29, 2010. No new or revised commitments are made in this submittal.

If there are any questions or additional information is needed, please contact Mr. Richard R.Cliche, License Renewal Project Manager, at (603) 773-7003.Ac35 NextEra Energy Seabrook, LLC, P.O. Box 300, Lafayette Road, Seabrook, NH 03874 United States Nuclear Regulatory Commission SBK-L-10185/Page 2 If you have any questions regarding this correspondence, please contact Mr. Michael O'Keefe, Licensing Manager, at (603) 773-7745.Sincerely, NextEra Energy Seabrook, LLC.Site Vice President Enclosure cc: W.M. Dean G. E. Miller, W. J. Raymond, R. A. Plasse Jr., M. Wentzel, NRC Region I Administrator NRC Project Manager, Project Directorate 1-2 NRC Resident Inspector NRC Project Manager,*License ,NRC Project Manager, License Renewal Mr. Christopher M. Pope Director Homeland Security and Emergency Management New Hampshire Department of Safety Division of Homeland Security and Emergency Management Bureau of Emergency Management 33 Hazen Drive Concord' NH 03305 John Giarrusso, Jr.Nuclear Preparedness Manager The Commonwealth of Massachusetts Emergency Management Agency 400 Worcester Road Framingham, MA 01702-5399 United States Nuclear Regulatory Commission SBK-L-10185 NEx~era SEABR'OOK I, Edward T. Metcalf, Plant General Manager of NextEra Energy Seabrook, LLC hereby affirm that the information and statements contained within are based on facts and circumstances which are true and accurate to the best of my knowledge and belief.Sworn and Subscribed Before me thisday of /I( vJ ¶ $'ý6C ,2010 Edward T. Metc f Plant General Manager Notary Public

• United States Nuclear Regulatory Commission.

SBK-L-lO 185 / Enclosure Enclosure.

Request for Additional Information (RAI): Meteorology and Air Quality Page 1 of 26 1.Please provide the annual air emission reports for Title. V'permitted sources (TV-OP-017 and GSP-EG-225), including fuel consumption per year, for the five most recent years.NextEra Enerffv Seabrook Response: L.a The annual air emission reports for Title V permitted source TV-OP-017 including fuel consumption per year, are provided on NH DES Air Resources Division Emissions Inventory Form INV-Ei for nine significant emissions sources (EU01 -EU09) for the five most recent years in Attachment 1 as follows.* 2009:* 2008:* 2007:* 2006:* 2005: SBK-L-10059, SBK-L-09062, SBK-L-08040, SBK-L-07076, SBK-L-06075, April 8, 2010.April 15, 2009 March 31, 2008 April 17, 2007 April 13, 2006 1 .b The Title V permitted source GSP-EG-225 was commissioned on December 28, 2006 and therefore only three full years of data is available for this permitted source. The emissions from this source are estimated not to exceed one ton per year. Fuel Consumption was estimated in the initial 2006/2007 report and provided on NH DES Air Resources Division Emissions Inventory Form INV-E1 for 2008 and 2009. The reports are contained in Attachment 1 as follows.* 2006/2007* 2008* 2009 SBK-L-08071, SBK-L-09120, SBK-L-10058, April 23, 2008 May 22, 2009 April 13, 2010 Request for Additional Information (RAI): Aquatic Ecology I In the "Seabrook 2009 Environmental Monitoring in the Hampton-Seabrook Area:* A Characterization of. Environmental Conditions" (NAI 2010),. Table 4-1 "Species Composition, Annual Totals, and Nine-Year Total of Finfish,, and American Lobster Impinged at Seabrook Station from 1994 to 2009," provides impingement estimates from 1994 through 2009. Subnote "a" states that impingement data prior to October 1994 were underestimated.

Please provide a brief explanation why these data were underestimated.

United States Nuclear Regulatory Commission Page 2 of 26 SBK-L-10185

/Enclosure

2. In NAI 2010, Table 4-6 "Annual estimated numbers of fish eggs and larvae entrained (in millions) by the cooling water system at Seabrook Station from June 1990 through December 2009." provides entrainment estimates for several species of fish eggs and larvae. For egg entrainment estimates, several categories combine two or more species (e.g. Atlantic cod/haddock, cunner/yellowtail, hake spp., hake spp./fourbeard rocking) due to the similar appearance of the eggs and spawning seasons. Provide any supporting information available to estimate the percentage of eggs that belong to each species.3. In NAI 2010, NextEra sampled in two main areas, the nearfield and farfield sites. The nearfield site is located near the intake and discharge structures, and the farfield site is located approximately 2-3 nautical miles from these structures.

NextEra compares data from the two sites to determine whether plant operations have an impact on aquatic resources.

Discuss the justification why the farfield site was selected.

Describe any studies that were conducted to select the farfield site as a control site.4. Please describe the cleaning and maintenance procedures for the intake and discharge structures, including the Ifrequency of dredging, physical cleaning, and other maintenance procedures.

5. Please specify the flow rate at the intake structures.

6. Please provide any recent correspondence from Federal or State agencies regarding NAI 2010 or "Seabrook Station, 2010 Environmental Monitoring Program Mid-Year Report" and NextEra's responses to those comments.7. The Environmental Report states that NextEra stopped monitoring pelagic fish using gill nets because the sampling methods had detrimental impacts on aquatic resources.

Please provide documentation from National Marine Fisheries Service (NMFS) or other Federal or State agencies that suggested NextEra discontinue this monitoring program.NextEra Energy Seabrook Response: 1. In October 1994, Seabrook Station identified the fact that it had not accurately counted the number of small fish impinged on Seabrook Station's travelling screens prior to the fourth quarter of 1994. Small fish, concealed in screen wash debris had been overlooked by plant personnel responsible for separating fish from debris. Therefore, impingement data prior to the fourth quarter of 1994 cannot be considered to be as reliable as data after this time frame.The impingement monitoring program was enhanced in the fourth quarter of 1994 to separate all readily visible fish from debris and beginning in 1995,' biologists began to conduct the weekly impingement evaluations.

The magnitude of the underestimate prior to October 1994 is unknown.

United States Nuclear Regulatory Commission Page 3 of 26 SBK-L- 10185 / Enclosure 2. It is necessary to group some egg taxa at certain times of the year due to morphological similarities and overlap of spawning seasons. At other times of year, spawning seasons do not overlap or the embryo within the egg capsule hasdeveloped to the point where a species determination can be made. However, it is possible to estimate the percentage of eggs that belong to each species in a species group. Assuming each egg species in a group has the same probability of hatching, the ratio of larval species can be applied to egg species groups to estimate the species composition of egg groups. This method was used to estimate the species composition of egg groups from 1990 through 2009. The apportioned species in the egg groups were added to the eggs that were identified to the species level to derive total estimates of the number of Atlantic cod, haddock, witch flounder, cunner, yellowtail flounder, hake, and fourbeard rockling eggs entrained (Table 1).Table 1. Estimated number of selected fish eggs entrained at Seabrook Station 1990-2009 based on apportioned egg groups and eggs identified to species.CN a-, i~ I .~j-i C7I, CFN_~ C.'.~Atlantic cod 20.84 74.50 31.96 50.30 0.20 37.00 22.37 6.38 84.28 48.61 30.72 32.10 77.84 15.48 9.28 16.03 15.69 15.12 48.02 15.43 Haddock -0.00 0.00 7.54 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.73 0.00 0.00 0.00 0.00 Witch flounder 8.26 0.00 0.00 0.00 0.12 0.70 34.43 6.52 1.82 4.39 32.98 0.00 3.16 4.02 8.92 1.55 4.44. 5.26 0.70 3.16 Cunner 489.25 147.17 0.00 58.40 0.00 18.19 93.87 221.54 63.56 220.30 1206.70 239.55 1395.69 143.90 518.10 251.21 489.43 295.03 444.47 1451.22 Yellowtail flounder 1.15 569.23 198.60 0.00 0.00 0.61 17.93 0.46 1.94 33.80 2.80 8.35 3.91 0.00 0.10 4.99 1.13 7.77 0.00 4.10 Hake 50.14 2.60 0.00 1.62 0.60 29.28 213.21 71.77 7.52 6.22 295.23 4.40 79.70 5.20 5.74 2.80 8.12 15.61 21.72 92.07 Fourbeardrockling 108.76 39.50 51.40 32.68 0.2027.52 38.69 46.63 33.88 27.38 63.57 47.10 61.43 44.10 38.16 68.80 36.59 78.15 61.67 123.82 3. The reference (farfield) sites for water quality, zooplankton and ichthyoplankton, benthos, lobster larvae, and epibenthic crustaceans are between 3 and 4 nautical miles north of the midpoint between the intake and discharge ,structures.

An otter trawl reference station is located about 2 nautical miles north of the midpoint between the structures with a second reference station located about 3 nautical miles south of the midpoint.

In 1981, staff scientists at Normandeau recommended to PSNH that reference areas be added to the Environmental Monitoring program. This addition would allow Seabrook Stationmonitoring.

to follow the BACI (Before-After-Control-Impact) sampling design that was recommended for impact evaluation, particularly at power plants. The use of the BACI design strengthens the ability to separate potential plant-related impacts from natural variability.

Normandeau and PSNH staff collaborated to select farfield sampling sites that were similar. in terms of depth, substrate, wave energy and species composition, but outside of plant influences.

The zone of discharge influence was based on modeling conducted, by Alden Research Laboratories and presented in the 1977 Summary Document.

As the predominant currents are north to south, a northern farfield location was deemed.a better choice than southern.

United States*Nuclear Regulatory Commission

'Page 4 of 26 SBK-L- 10185 /Enclosure Rye Ledge was selected as the location of the farfield station cluster, as it offered similar intertidal and subtidal substrate and algae composition to that near Seabrook Station's discharge.

Specific locations were chosen after an intensive site search. An intertidal station was selected that had similar wave exposure, elevation, substrate (horizontal ledge), and algae species composition to the nearfield station. Divers reviewed potential subtidal sites with similar depth to nearfield areas, focusing on substrate composition, elevation, wave energy, and algae species composition, especially the presence of kelps. Sites that best paralleled nearfield conditions were selected.

Plankton stations were cd-located at this site to parallel the nearfield sampling design. PSNH approved the sample locations, but no formal report was prepared to document the site search and final station selection.

The 1982 Baseline report was the first report to include those stations.4. Cleaning of the threeintake structures and inspection of the eleven bifurcated discharge diffuser nozzles is periodically performed by two contractors; Normandeau Associates (also responsible for conduct of the environmental monitoring program and certain REMP marine sample collections) and Underwater Construction Company (also responsible for in plant forebay diving for sediment removal, underwater equipment inspections and the 1999 installation of the seal barrier system). The intake structures are cleaned twice per year and the discharge diffuser nozzles are inspected each refueling outage as described below by these contractors.

Normandeau Associates (Limited Intake Structure Cleaning)Normandeau Associates conducts an exterior and limited interior cleaning of the offshore intake structures twice a year (June and November) during non-outage years. During outage years Normandeau will perform one cleaning, either Spring or Fall, while the plant is operating.

The Normandeau intake structure cleaning is performed while the station is operating thus diver entry into the-intake structures is not permitted due to the higher intake water velocity internal to the structures and in the vertical intake shafts. The Normandeau cleaning of the exterior and limited interior surfaces is performed using hand tools and rakes deployed from outside the intakes. The cleaning involves the removal of all bio -fouling from all of the surfaces of each of the three velocity caps including the top, the circular vertical face above and below the seal barrier bars, the barrier bars and the interior surfaces of each of the 12 bays, which includes the vertical support vanes, the ceiling and the floor going in as far as the vertical riser'shaft opening. Each cleaning evolution begins with the dive team attending an initial pre-job briefing with a representative from Seabrook Station.The pre-job briefing serves to review the job expectations including individual.responsibilities; discuss safety requirements including identification of potential hazards and review of applicable operating experiences; discuss control room, security and other notification requirements; and review communications and emergency procedures.

Cleaning begins with the top of the velocity cap. The top and exterior vertical faces and leading edges of the vanes are covered with a copper-nickel cladding, from which bio-fouling is easily removed compared to concrete surfaces.

This area is mostly cleanýd using gloved hands and a stiff brush.. The barrier bars are also constructed of copper-nickel alloy and are cleaned by running a gloved hand up and down each bar. The fastening hardware for the seal United States Nuclear Regulatory Commission Page 5 of 26 SBK-L-I 0185 / Enclosure barriers are cleaned and checked for any sign of loosening and the spacing between the bars is inspected.

Any abnormal findings are reported to Seabrook Station and action is taken only after approval from Seabrook Station. Bio-fouling removed from these surfaces is dropped to the sea floor.These interior surfaces of the support vanes and the ceiling are concrete, to which mussels, barnacles and other organisms attach very strongly.

For these surfaces a telescoping scraper is used for efficient cleaning from outside the barrier bars. The floor of the interior is covered, with copper-nickel cladding similar to the top with numerous bolt heads protruding.

For this area a technique that keeps the scraper head of the tool gliding just above the bolt heads is used allowing for the removal of the clusters of mussels that attach to the bolt heads. All tools are tethered to the diver's harness 'with a nylon/polyester cord in accordance with Seabrook Station's Foreign Material Exclusion policies to prevent their accidental loss into the intake system.Underwater Construction Company (Intake Structure Cleaning and Discharge Diffuser Nozzle Inspection)

Underwater Construction Company conducts an external and interior cleaning of the offshore intake structures during refueling outage years during the alternating spring or fall refueling outages. The cleaning during refueling outages permits diver entry into the intake structure through removal of a seal barrier panel on each intake structure.

The intake structure cleaning includes all of the exterior and interior surfaces as detailed above by Normandeau.

The intake structure cleaning by Underwater Construction also includes the circumference of the vertical riser shaft down to the chlorine injection header ring as well as the header and injection nozzles. The chlorine header is approximately.

six feet down into the riser shaft.The intake structure cleaning also incorporates a check of the seal barrier mounting hardware condition and tightness.

During refueling outages Underwater Construction also performs inspections of the discharge diffuser nozzles for damage and entangled lobster trap buoy lines, fishing gear etc.5. As documented in NUREG -0895 "Final Environmental Statement Related to the Operation of Seabrook Station, Units 1 and 2" Appendix H and NPDES Permit NH0020338 Part I A.2.b., NextEra Energy Seabrook operates such that; "The velocity of water as it enters the cooling water intake structures shall at no time exceed 1.0 foot per, second." 6. Enclosed in Attachment 3 is New Hampshire Fish.and Game Department letter dated August 10, 2010; regarding Seabrook Station 2010 Environmental Monitoring Program Mid-Year Report and NextEra Energy Seabrook, LLC letter SBK-L-10175; "Response to Comments on 2010 Environmental Monitoring Program Mid-Year Report, October 15, 2010.7. Enclosed in Attachment 3 is Seabrook Station memo NYE-97010 dated March 20, 1996, documenting the suspension the Seabrook Station Gill Net Monitoring Program on March 19, 1997 asdiscussed with F. Gay, Environmental Protection Agency and J. Hart, Seabrook Station, on March 18, 1997.

United States Nuclear Regulatory Commission Page 6 of 26 SBK-L-10 185 / Enclosure Request for Additional Information (RAI): Human Health 1. The Environmental Report (ER), Section 3.1.3.3, Solid Radioactive WasteSystem, discusses how low-level radioactive waste is expected to be handled during the period of license renewal.However, as discussed in the ER, Seabrook Station cannot dispose of Class B and C low-level radioactive waste at the Barnwell, SC facility, as New Hampshire is not a part of the Atlantic Interstate Low-Level Radioactive Waste Management Compact. The ER states that Seabrook Station has sufficient capacity within the waste processing building for approximately seven years of storage for Class B and C waste. In addition to the storage capability, the ER discussed the use' of a contractor to process' and take title of the Class. B arid C waste for its disposal.However, based on the information contained-in the ER, the'staff is unable to reach a conclusion regarding Seabrook Station's capacity to store and dispose of low-level radioactive waste over the term of license renewal. Please provide additional information about Seabrook Station's typical yearly low-level waste 'generation rates, processing methods, storage capability, and disposal options during the period of license renewal.2. The ER, Section 3.1.3.4, Mixed Waste, discusses an outage event where a large volume (40 tons)of mixed waste was generated during a steam generator chemical cleaning process and that similar large volumes may be generated in the future. Is it reasonably foreseeable that there will be additional steam generator chemical cleanings that will require the disposal of similar large volumes of mixed waste during the term of license renewal? Also, the discussion on the generation of "small volumes of mixed waste" does not contain sufficient information for the staff to make an assessment of the mixed waste storage and disposal capabilities at the Seabrook Station. Please provide additional information about Seabrook's typical yearly mixed waste generation rates, processing methods, applicable permits, storage capacity, and disposal options during the period of license renewal.NextEra Energy Seabrook Response: Environmental Report Sections 3.1.3.3, Solid Radioactive Waste' System and 3.1.3.4, Mixed Waste have been supplemented to clarify Seabrook Station's capacity to store and dispose of low-level radioactive waste over the term of license renewal and additional information about Seabrook's typical yearly mixed waste generation rates, processing methods, applicable permits, storage capacity, and disposal options during the period of license renewal. For clarity, the text for Environmental Report Sections 3.1.3.3, Solid Radioactive Waste System and 3.1.3.4, Mixed Waste have been revised in their entirety and are provided below.3.1.3.3 Solid Radioactive Waste System The Solid Waste Management System processe§ wet and dry solid wastes using primarily the spent resinsluice and waste solids systems. Spent ion exchange resins from plant demineralizers are sluiced to the spent resin sluice tanks. The waste solids system transfers resins from the sluice tanks to liners which are packaged for shipment offsite. Spent filters removed from plant systems are placed directly into liners and after a drying period are packaged for shipment offsite. Dry Active Waste is normally directly packaged for shipment offsite in boxes and/or United States Nuclear Regulatory Commission Page 7 of 26 SBK-L- 10185 /Enclosure cargo containers (Sea-Land). (Seabrook 2008a)The Station also has installed waste concentration systems for evaporator bottoms and an asphalt solidification system that could be used for solid waste processing (Seabrook 2008a).Neither of these systems has ever been used and both are being evaluated for long-term lay-up or abandonment to avoid excessive waste generation and reduce operational complexity.

In the past, all low level wastes were shipped to either to the Clive Utah disposal facility for NRC class A waste or to the Barnwell Low Level Radioactive Waste Disposal Facility in South Carolina for NRC class B and C waste, either directly or through waste processors.

On July 1, 200.8, the Barnwell facility closed to all facilities that are not in a state that is a member of the, Atlantic Interstate Low Level Radioactive Waste Management Compact. New Hampshire is not a member of the Compact. The Barnwell facility is closed to Seabrook Station.Currently, NRC Class A radioactive wastes (primarily Dry Active Waste, as well as some resins and filters) are shipped to offsite facilities for further processing or direct disposal under a long term contract.

All of Seabrook Station Class A wastes are disposed in a licensed radioactive waste landfill owned and operated by EnergySolutions in Clive, Utah. The Clive Utah disposal facility is not licensed to accept NRC Class B and C wastes.NRC Class B & C wastes (primarily primary resins and filters) are sent to Studsvik, a waste vendor in Erwin, Tennessee under an existing contract for processing.

Through a state of Tennessee-licensed attribution model, Studsvik is allowed to take title to Seabrook Station's Class B and C waste. Studsvik processes the material to reduce the volume, takes title to the wastes, and sends it to Waste Control Specialists in Andrews County, Texas for long-term storage and ultimately disposal as Studsvik's waste. Should the loss of this disposal outlet for NRC class B and C wet wastes (resins and filters) occur, the station has sufficient buffer capacity between: a) The NRC class B and C spent resin storage tank in the Waste Processing Building (operational capacity of 600 ft 3 , b) Four 120 ft 3 liner shields in the Waste Processing Building Drum Storage Area for resins or filters and c) Six 120 ft 3 filter liner storage cubicles below the 25' elevation Waste Processing Building floor for a minimum of ten years of operation.

The current NRC class B and C generation rate is -100 ft 3 per year. The generation rate and buffer capacity (-1,600 ft 3 combined) allow sufficient time such that should the Studsvik disposal option no longer be available, the station has adequate time to design and install a NRC class B and C storage facility on site.All radioactive shipments are made in accordance with NRC, U.S. Department of Transportation and state. regulations.

3.1.3.4 Mixed Waste"Mixed waste" refers to Waste that contain both radioactive and hazardous constituents.

Under normal operating conditions, the station generates approximately one gallon per year of mixed waste associated withNPDES oil & grease analyses.

The mixed waste from these analyses.

are United States Nuclear Regulatory Commission Page 8 of 26 SBK-L- 10185 / Enclosure collected in a disposal container which when filled is sent to a licensed mixed waste processing and disposal facility within 90 days. The station is not currently permitted for storage of mixed waste and is classified as a Federal Small Quantity Generator of Hazardous Waste.Occasionally, during special evolutions such as the chemical cleaning of the steam generators, the quantity of mixed waste generated may increase. "For example, during the 2009 refueling.

outage, 40 tons of mixed waste was generated in the residual iron solvent cleaning solution.because of leachable lead and chromium in the waste exceeding 5 ppm in the presence of tritium and small quantities of gamma emitting by-product material.

Conversely, the 2008 steam generator chemical cleaning for copper removal did not generate a-mixed waste, only a radioactive waste because the copper solvent was not as effective as the iron solvent at removing lead"and chromium.

Chemical cleaning of steam generators may be performed in future refueling outages and has the potential to generate similar quantities of mixed waste." Any mixed waste arising from these potential future chemical cleanings will be collected in the disposal container(s) which when filled are sent to a licensed mixed waste processing and disposal facility within 90 days. The station is not currently permitted for storage of mixed waste and will need to claim a 'monthly one time Federal Large Quantity Generator of Hazardous Waste status when and if a steam generator chemical cleaning project generates a mixed waste.Request for Additional Information (RAI): Archaeological and Cultural Resources 1. Please provide any correspondence with the New Hampshire Division of Historical Resources or Native American tribes since the ER was submitted.

NextEra Energy Seabrook Response: 1. There has been no additional correspondence between NextEra Energy Seabrook, LLC and the New Hampshire Division of Historical Resources or Native American tribes since the ER was submitted.

Request for Additional Information (RAI): Hydrology and Water Quality 1. Please provide a summary of the last 12 months of analytical results of composite samples taken via the Radiation Monitor Control Station (located in the Auxiliary Building).

2. Has tritium been detected offsite above detection limits (based on quarterly sampling) in any of the new temporary monitoring wells (TW-1, TW-2, or TW-3) installed in the marsh south of the Auxiliary Building?.

If so, please identify the well(s), date(s) detected, and maximum observed results.NextEra Energy Seabrook Response: 1. A summary of the last 12 months of analytical results of samples taken via the Storm Drain Rad Monitor is contained in the following Measurements Report dated 11/16/2010.

OpenCDM Measurements

-Samplepoint, Analysis, Sampledate FPL Energy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD -STORM DRAINS.TITLE -DESCRIPTOR Group -EFF System -LES Analysis Value/Meas.

Unit Date/Time H3 (TRITIUM)

<6.24E-07 uCi/ml 22-Dec-2008 07:52:00 H3 (TRITIUM) 1.58E-05 uCi/ml 1!-Feb-2009 08:25:00 H3 (TRITIUM) 9.41e-07 uCi/mil 23-Feb-2009 08:48:00 Results Comment: composited from grab samples obtained from 2/16/09 to 2/22/09 H3 (TRITIUM)

<5.63E-07 uCi/ml 09-Mar-2009 07:55:00 H3 (TRITIUM) 9.55E-07 uCi/ml Mar-2009 10:10:00.Power 100.00 100.00 100.00 100.00 100.00 OpMode* " 1 S1 1 Analyst HIC AP WJD 1 1 JIC JIC H3 (TRITIUM) 9.98E-07 uCi/mI 20-Apr-2009 07:57:00 .100.00 1 WJD H3 (TRITIUM)

<5.87e-7 uCi/mI .04-May-2009 08:05:00 100.00 1 WJD Sample Comment: weekly composite H3 (TRITIUM)

<5.54E-07 uCi/ml 11-May-2009 08:10:00 100.00 1 AP H3 (TRITIUM)

<5.84e-7 uCi/ml 25-May-2009 06:37:00 1.00.00 1 WJD Sample Comment: Weekly Composite Sample H3 (TRITIUM)

<5.84E-07 uCi/ml 08-Jun-2009 08:40:00 100.00 1 JIc H3 (TRITIUM)

.<5.83E-7 uCi/ml 15-Jun-2009,10:17:00 100.00 1 WJD Sample Comment: WEEKLY COMPOSITE SAMPLE H3 (TRITIUM).

<5.49E-07 uCi/ml 07-Jul-2009 08:45:00 100.00 1 SDA H3 (TRITIUM)

<5.581E-07 uCi/ml 13-Jul-2009 09:05:00 100.00 1 AP H3(TRITIUM)

<5.79e-07 UCi/ml" 20-Jul-2009 11:35:00 100.00 1 WJD Sample Comment: weekly composite sample H3 (TRITIUM)

<5.93E-07 uCi/mi 17-Aug-2009.10:30:00 100.00 1 AP H3 (TRITIUM)

<5.57e-07 uCi/mi 07-Sep-2009 07:30:00 100.00 1 HBM H3 (TRITIUM)

<5.68E-07 uCi/ml 14-Sep-2009 08:10-:00 100.00 1 AP H3 (TRITIUM)

<5.83e-7 uCi/ml 26-Oct-2009 01:37:00 0.00 6 WJD H3 (TRITIUM) 6.69e-07 uCi/ml 14-Dec-2009 12:28:00 0.00 5. VZ H3 (TRITIUM)

<5.42E-07 uGi/ml 28-Dec-2009 09:10:00 100.00 1 AP H3 (TRITIUM)

<1.54e-06 uCi/ml, l1-Jan-2010 00:06:00 ..100.00 1 HBM H3 (TRITIUM)

<5.53e-07 uCi/ml .14-Jan-2010 03:10:00 -100.00 1 HBM H3 (TRITIUM) 5.92e-07 uCi/ml 15-Jan-2010 00:22:00 100.00 1 .BM H3 (TRITIUM)

<5.70E-07 uCi/ml 17-Jan-2010 00:10:00 .100.00 1 JIC H3. (TRITiUM)

.3.46E-06 uCi/ml 25-Jan-2010 10:50:00 i00.00 1 AP H3 (TRITIUM)

<5.77e-07 uCi/ml ..15-Feb-2010 07:55:00 100.00 1 WJD Sample Comment: Composite of last weeks grab samples H3 (TRITIUM) 7.69e-07 uCi/ml. 08-Mar-2010 08:01:00 .100.00 .1 WJD Sample Comment: composite of last weeks grab samples H3 (TRITIUM)

<5.97e-07 uCi/ml 19-Apr-2010 08:15:00 100.00 1 WJD H3 (TRITIUM)

<5.93e-07 uCi/ml .26-Apr-2010 10:17:00 100.00 1 WJD H3 (TRITIUM) " <5.46e-7 uCi/ml 03-May-2010 08:16:00.

.00.00 1 WJD H3 (TRITIUM)

<5.95E-07uCi/ml

.24-May-2010 10:15:00 100.00 1 A AP.Rpr Genr.ed"1/16200 7:0.Pge1 f.Repart Generated:.

11/1612010 07:00 Page 1 of 9 OpenCDM'Measurements

-Samplepoint, Analysis, Sampledate FPL Energy,-SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD -STORM DRAINS TITLE -DESCRIPTOR i Group -EFF System -LES Analysis Value/Meas.

Unit Date/Time Power OpMode Analyst H3 (TRITIUM)

<5.60e-07uCi/ml 31-May-2010 04:25:00 100.00 1 WJD H3 (TRITIUM)

.<5.66E-07uCiIml 07-Jun-2010 08:10:00 100.00 1 VZ H3 (TRITIUM)

.<5.57E-07 uCi/ml 21-Jun-2010 12:35:00 100.00 1' WJD H3 (TRITIUM) 6.608e-07 uCi/ml 05-'Jul-2010 10:40:00 100.00 1 AJB H13 (TRITIUM)

<6.417e-07 uCi/ml 12-Jul-201008:28:00 100.00 1 AJB H3 (TRITIUM)

.1.03e-06 uCi/ml 19-Jul-2010 10:45:00 100.00 1 WJD H3 (TRITIUM)

-<5.57E-07 uCi/ml .26-Jul-2010 08:35:00 .100.00 1 JSB H3 (TRITIUM)

<5.63 le-07 uCi/ml. 02-Aug-2010..08:40:00 100.00 1 AJB H3 (TRITIUM)

<5.54e-07 uCi/mi 16-Aug-2010 08:35:00 100.00- 1 JSB H3 (TRITIUM)

<5.6E-07 uCi/ml 23-Aug-2010 09:05:00 100.00 1 SDA H3 (TRITIUM)

<5.658E-07 uCi/ml 30-Aug-2010.00:10:00 100.00 1. CAS H3 (TRITIUM)

<5.29E-07 uCi/ml 06-Sep-2010 11:23:00 100.00 1 JSB H3 (TRITIUM)-

8.018e-07 uCi/ml 13-Sep-20.10 08:17:00 100.00 1 AJB H3 (TRITIUM) 8.12e-07 uCi/ml 27-Sep-2010 10:0.8:00 100.00 1 WJD H3 (TRITIUM)

<5.77E-07 uCi/ml 04-Oct-2010 10:15:00 100.00 1 SDA H3 (TRITIUM)

<5.72e-07 uCi/ml .1 1-Oct-2010 07:09:00 100.00 1 WJD H3 (TRITIUM)

<5.73E-07 uCi/ml 1.7-Oct-2010 18:00:00 100.00 1 JS13 H3 (TRITIUM)

<5.64e-07 uCi/ml 25-Oct-2010 10:33:00 100.00 1 WJD 1I3 (TRITIUM) 2.97e-06 uCi/ml 01-Nov-2010 13:30:00 100.00 1 SMD H3 (TRITIUM)

{Dup=l} <5.84E-07uCi/ml 01-Nov-2010 13:30:00 100.00 1 AP TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 03-Nov-2008 09:10:00 100.00 1 SMD*TGA (TOTAL GAMMA-ACTIVITY) 0.OOOOE+00 uCi/cc 10-Nov-2008 13:00:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc. 18-Nov-2008 08:08:00 .100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 1.5114E-07 uCi/cc, 08-Dec-2008 0.7:45:00 100.00 1 SMD" TGA (TOTAL GAMMA.ACTIVITY) 0.OOOOE+00 uCi/cc 11-Dec-2008 05:25:00 100.00. 1 CAS TGA (TOTAL GANMIA ACTIVITY) .OOOOE+00 uCilcc 15-Dec-2008 07:40:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 22-Dec-2008 07:52:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) " 0.OOOOE+00 uCi/cc 29-Dec-2008 08:05:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 19-Jan-2009 19:250:00 100.00 1 SMD.TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 26-Jan-2009 09:10:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 02-aeb-200908:145:00 100.00 1 SMD TGA (TOTAL GAMvIA ACTIVITY) 0.0000E+00 uCilcc. 1 .-Feb-2009 08:25:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCilcc. 16-Feb-2009 09:09:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 18-Feb-2009 12:55:00 100.00 1 CAS.TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc " 19-Feb-2009 10:25:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 20-Feb-2009 12:40:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY)

O.OOOOE+00 uCi/cc 21-Feb-2009"07:45:00 100.00 1, CAS Report Generated:

11/16 010 07:00 Page 2 of 9 OpenCDM Measurements

-Samplepoint, Analysis, Sampledate" FPL Energy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD -STORM DRAINS TITLE -DESCRIPTOR Group -EFF System -LES Analysis Value/Meas.

Unit Date/Time Power OpMode Analyst TGA (TOTAL GAMMA ACTIVITY).

0.00e+00 uCi/cc 23-Feb-2009 08:48:00 100.00 1 WJD TGA (TOTAL GAMMA ACTIVITY) 1.7970E-07 uCilcc 24-Feb-2009 14:00:00 100.0'0 1 SMD1 TGA (TOTAL GAMMA.ACTIVITY) 0.0000E+00 uCi/cc 27-Feb-2009 13:14:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .28-Feb-2009 08:19:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 03-Mar-2009.10:45:00

.100.00 11 CAS TGA (TOTAL GAMMA ACTIVITY) .OOOOE+/-00 uCi/cc 04-Mar-2009 08:00:0-0 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 05-Mar-2009 08:45:00 100.00 1 SMD TGA (TOTAL GAMM.A ACTIVITY) 0.0000E+00uCi/cc 05-Mar-2009 16:14:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 09-Mar-2009 07:55:00 100.00 1 SMD TGA.(TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 10-Mar-2009 14:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Mar-2009 10:10:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 29-Mar-2009 13:18:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 29-Mar-2009 19:05:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Mar-2009 09:24:00 100.00 1 -CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Mar-2009 15:07:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 04-Apr-2009 08:10:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 06-Apr-2009 10:06:00 100.00 1 ASM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 06-Apr-2009 17:45:00 100.00. 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 13-Apr-2009 11:00:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOE+00 uCi/cc 20-Apr-2009 07:57:00 100.00 1 WJD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 21-Apr-2009 08:11:00 100.00, 1 GAS TGA (TOTAL GAMMA ACTIVITY) 0.00e+00 uCi/cc 04-MAy-2009 08:05:00 100.00 1 WJD Samnple Comment: weekly composite TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 207-May-2009 10:00:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOQOE+00 uCi/cc 08-May-2009 04:50:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.00OOE+00 uCi/cc 10-May-2009 01:00:00 100.00 1.. SMWJ-TGA (TOTAL GAMMA ACTIVITY) 5.7409E-08 uCilcc. 1 1-May-2009.08:10:00 100.00 1 GAS TGA (TOTAL GAMMA ACTIVITY) 0.00e+00 uCilcc 25-May-2009 06:37:00 100.00 1 Will Sample Comment: Weekly Composite Sample TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 30-May-2009 08:35:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+O0 uCi/cc* 01-Jun-2009 11:00:00.

'100.00 1 GAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 08-Jun-2009 08:40:00 100.00 1 GAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc .12-Jun-2009 01:20:00 100.00 1 GAS TGA (TOTAL GAMMA ACTIVITY) 0.000E+00 uCi/cc 14-Jun-2009 10:40:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.00OE+00 uCi/cc 15-Jun-2009 10:17:00 100.00 1 GAS S.ample Comment: WEEKLY COMPOSITE SAMPLE TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCicc 22-Jun-2009 09:05:00 100.00 1 SMD.- , -s s r. .n n. ,. .Report -enerayed:

iw'iw.20uu 7/:00ýr,ý .v .

OpenCDM Measurements

-Samplepoint, Analysis, Sampledate FPL Energy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD --STORM DRAINS, TITLE -DESCRIPTOR.

Grojup'- ."EFF.System. -LES Analysis Value/Meas.

Unit Date/Time Power OpMode Analyst* TGA(TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/co 22-Jun-2009 13:40:00 100.00 1 CAS* TGA (TOTAL GAMMA ACTIVITY)

"0.0000E00 uCi/cc 22-Jun-2009 23:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 23-Jun-2009 16:05:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 25-Jun-2009 17:59:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY).

0.OOOOE+00 uCi/cc 25-Jun-200921:11:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.o0oOE+00 uCi/cc 26-Jun-2009 09:20:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCilcc 29-Jun-2009 10:10:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.o0ooE+00 uCi/cc 29-Jtm-2009 10:15:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOEtOO00 uCi/cc 01-Jul-2009 12:40:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 02-Jul-2009 12:50:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 04-Jul-2009 08:15:00 100.00 1 CAS, TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 05-Jul-2009 08:35:00 100.00 1 CAS.*TGA (TOTAL GAMMA ACTIVITY), 0.00.OOE+00 uCi/cc 06-Jul-2009 09:10:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 07-Jul-2009 08:45:00 .100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOE+00 uCi/cc 09-Jul-2009 10:25:00 100.00 1 .CAS TGA (TOTAL. GAMMA ACTIVITY) 0.0000E+00 uCi/cc 12-Jul-2009 16:00:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .13-Jul-2009 08:00:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 14-Jul-2009 07:45:00 100.00 1 AAG TGA (TOTAL GAMMA ACTIVITY).

o.OOOOE+00 uCi/cc 15-Jul-2009 08:40:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY)

-0:0000E+00 uCi/cc 20-Jui-2009 11:35:00 100.00 1 -HBM Sample Comment: weekly composite sample TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 27-Jul-2009 13:40:00 100.00 1 1IBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Jul-2009 16:35:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 3.8871E-08 uCi/cc 31-Jul-2009 07:50:00 .100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .04-Aug-2009 08:00:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 05-Aug-2009 08:00:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY)

Q.OOOOE+00 uCi/cc 07:Aug-2009 07:45-:00 100.00 1 133BM TGA (TOTAL GAMMA ACTIVITY)

.0.0000E+00 uCi/cc 10-Aug-2009 09;03:00 100.00 1 MKL TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 31-Aug-2009 09:20:00 100.00. 1 AAG TGA (TOTAL GAMMA ACTIVITY) 6.0000E+00 uCi/cc 07-Sep-2009 07:30"00 100.00 1 .,CAS TGA (TOTAL GAMMA ACTIVITY)-

0.0000E+00 uCi/cc 14-Sep-2009' 08:10:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY):

6.2303E-07 uCi/cc " 21-Sep-20Q9 01:15:00 100.00 1 AAG TGA (TOTAL GAMMA ACTIVITY) 21.OOOOE+00 uCilcc 2 1-Sep-2009 12:48:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 24-Sep-2009 01:35:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 27-Sep-2009 23:40:00 100.00 1 AAG TGA (TOTAL GAMMA ACTIVITY) 0.000OE+00 uCi/cc

• 29-Sep-2009 01:45:00 100.00 1 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 02-Oct-2009 07:50:00 0.00 5. CAS.R.eport .. Genraed 111/21 070 rage 4.. p Report Generated:

11/16/2010 01:00 P'age 4 of 9 OpenCDM Measurements

-Samplepoint,-Analysis, Sampledate FPL Energy -SEABROOK STATION, From: 01-Nov-2008.00:00 To: i6-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 SamplePoint:

SD,- STORM DRAINS TITLE -DESCRIPTOR Group EFF System -LES Analysis Value/Meas.

Unit Date/Time Power OpMode Analyst TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc -"8-Oct-2009 03:05:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 08-Oct-2009 03:30:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 09-Oct-2009 01:30:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.ooooE+oo uCi/cc 10-Oct-2009 00:18:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 1.4670E-07 uCi/cc 10-Oct-2009 13:00:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uci/cc 12-Oct-2009 00:55:00 0.00 6.. AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 12-Oct-2009 01:00:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 1.1043E-06 uCi/cc 12-Oct-2009 22:55:00 0.00 .6 AAG, TGA (TOTAL GAMMA ACTIVITY) 00000E+00 uCi/cc 14-Oct-2009 23:40:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY)

.0.OOOOE+00 UCi/cc 19-Oct-2009 01:22:00 .0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 21-Oct-2009 19:55:00 0.00 .6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 22-Oct-2009 20:25:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .26-Oct-2009 00:42:00 0.00 .6 CAS TGA.(TOTAL GAMMA ACTIVITY) 0.OOOE+00 uCi/cc 26-Oct-2009 01:37:00 0.00 6 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 27-Oct-2009 00:29:00 0.00 6 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .28-Oct-2009 01:20:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc .28-Oct-2009 23:05:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 29-Oct-2009 22:55:00 0.00 6 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Oct-2009 21:15:00 .0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY)

.5.7303E-08 uCi/cc 31-Oct-2009 23:13:00 0.00 5 AAG TGA (TOTAL GAMMA-ACTIVITY) 1.4235E-07 uCi/cc 01-Nov-2009 23:20:00 0.00 5 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 0.1-Nov-2009 23:26:00 0.00. 5 AAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 03-Nov-2009 00:33:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+O0 uCi/cc 03-Nov-2009 23:50:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY)

.0.0000E+.00 uCi/cc 06-Nov-2009 02:.10:00 0.00 4 AAG.TGA (TOTAL GAMMA ACTIVITY) 4.0177E-09 uCi/cc 07-Nov-2009 00:35:00 .0.00 3 AAG TGA (TOTAL GAMMA ACTIVITY) 2.4054E-08 uCi/cc 07-Nov-2009 19:50:00 .0.00 3 -AAG TGA(TOTAL GAMMA ACTIVITY)

-0.OOOOE+00 uCi/cc ' 08-Nov-2009 00:10:00 0,00 3 AAG TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 08-Nov-2009 23:30:00 .0.00 3 AAG.TGA (TOTAL GAMMA ACTIVITY). .OOOOE+00 uCilcc 10-Nov-2009 02:00:00 25.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 1 -Nov-2009 01:20:00 -15.00 1 CAS TGA (TOTAL GAMvMA ACTIVITY) 0.OOOOE+00 uCi/ec 12-Nov-2009 0 1:00:0.0 15.00 1 AAG TGA (TOTAL GAMMA ACTIVITY) 4.6063E-08 uCi/cc 13-Nov-2009 00:09:00 15.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 14-Nov-2009 00:09:00 49.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 9.6099E-07 uCi/cc .15-Nov-2009 00:22:00 .65.00 1 CAS.TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 16-Nov-2009 00:40:00 65.00 1 CAS, TGA (TOTAL GAMMA ACTIVITY):.

0.OOOOE+00 uCi/cc 16-Nov-2009 08:40:00 65.00 1 CAS Report Generated:

11/16 010 07:00 Page :3 of 9 OpenCDM Measurements Samplepoint, Analysis, Sampledate FPLEnergy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD STORM DRAINS TITLE -DESCRIPTOR.

Group -EFF System -LES Value/Meas.

Unit Date/Time Poweir _OpMode Analyst TGA (TOTAL GAMMA ACTIVITY) 6.0641E-09 uCi/cc 16-Nov-2009 23:30:00 65.00 1 CA:S TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 19-Nov-2009 13:00:00 65.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 20-Nov-2009 10:15:00 65.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 2i-Nov-20.09 00:10:00 65.00 1 CAS.TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 22-Nov-2009 00:20:00 65.00 1 CAS TGA (TOTAL GAMMA ACTIVITY)ý.'-

0.OOOOE+00 uCi/cc 23-Nov-2009 09:10:00 '65.00 1 AAG TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 25-Nov-2009 00:55:00 65.00 1 MKE TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 26-Nov-2009 03:19:00 65.00 1 MIKL TGA (TOTAL GAMMA ACTIVITY) 1.8989E-08 uCi/cc .30-NoV-2009 00:33:00 65.00 1 MKL TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-NoV-2009 08:15:00 65.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Nov-2009 23:11:00 65.00 1 MKL TGA (TOTAL GAMMA ACTIVITY) 0.00003E+00 uCi/cc 01-Dec-2009 00:55:00 65.00 1 MKL TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 02-Dec-2009 02:24:00 65.00 1 MKE TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00.uCi/cc 03-Dec-2009 04:05:00 65.00 1 MKL TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 05-Dec-2009 01:25:00 65.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi!cc 06-Dec-2009 02:00:00 65.00 1 JSB TGA (TOTAL GAMMA ACTIVITY) 6.0000E+00 uCiI/cc 07-Dec-2009 01:55:00 0.00 4 CAS TGA (TOTAL GAMMIA ACTIVITY) 0.OOOOE+00 uCilcc 07-Dec-2009 09:11:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 UCi/cc 08-Dec-2009 00:06:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 8.9501E-09 uCi/cc 09-Dec-2009 00:45:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 10-Dec-2009 00:17:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 6.0373E-07 uCi/cc 11-Dec-2009 00:25:00 0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 12-Dec-2009 00:18:00 .,0.00 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCiIcc 12-Dec-2009 23:45:00 0.00, 5 CAS TGA (TOTAL GAMMA ACTIVITY) 0:0000Et0uCi/cc 14-Dec-2009 00:15:00 0.00 5 CAS TGA (TOTAL GAMMA.ACTIVITY) 0.OOOOE+00 uCi/cc 15-Dec-2009 01:37:00 0.00 4 CAS-TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 16-Dec-2009 00:15:00, 0.00 3 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 18-Dec-2009 01:05:00 5.00 1 *CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 20-Dec-2009 00:19:00 5.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 20-Dec-2009,10:30:00 15.00 I AAG'TGA (TOTAL GAMMA ACTIVITY).

0.0000t+00 uCi/cc 22-Dec-2009 04:15:00 15.00 1 HBM TGA (TOTAL GAMMA ACTIVITY).

7.7364E-07 uCi/cc 23-Dec-2009 00:40:00 15.00 1 CAS TOA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 24-Dec-2009 01:45:00 15.00 1 CAS TGA (TOTAL GAMMA ACTIVITY).

0.0000E+00 uCi/cc 28-Dec-2009 09: 10:00' 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 05-Jan-2010 02:00:00 100.00 1 I-BM TGA (TOTAL GAMMA ACTIVITY).

0.OOOOE+00 uCi/cc 06-Jan-201,0 01:20:00 100.00, 1, IIBM'GA (TOTAL GAMMA ACTIVITY), 0.00.0E+QO Ucilcc 07-Jan-2010 03:06:00 100.00 1 ..HBM Reprt eneate: 1/16201 07 0 ..Q00 Page ot'Report Generated:

11/16/2010 07:00 Page 6 of 9 OpenCDM Measurements

-Samplepoint, Analysis, Sampledate" FPL Energy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD -STORM DRAINS TITLE -DESCRIPTOR.

Griup-EFF System -LES.Analysis Value[Meas.

Unit Date/Time Power OpMode Analyst TGA (TOTAL GAMMA ACTIVITY) 2.1481E-07 uCi/cc" 09-Jan-2010 00:11:00 100.00 1 IBM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi!cc 10-Jan-2010 00:44:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 11-Jan-2010 00:06:00 100.00 1 I-BM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 12-Jan-2010 02:07:00 100.00 1 BHBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 13-Jan-2010 00:11:00 100.00, 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 14-Jan-2010 03:10:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 15-Jan-2010 00:-22:00 100.00 1 HBM TGA'(TOTAL GAMMA ACTIVITY) 8.8481E-08 uCicc 16.Jan72010 00:15:00 100.00 1 I-IBM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 17-Jan-2010 00:10:00 100.00 1 JIC TGA (TOTAL GAMMA ACTIVITY) 0.0600E+00 uCilcc 18-Jan-2010 07:50:00.

100.00 1 I-BM TGA (TOTAL GAMMA ACTIVITY) 5.2824E-09 uCi/cc 19-Jan-2010 01:2.1:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCilcc 21-Jan-2010 00:20:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 22-Jan-2010 00:15:00 100.00 1 CAS" TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Jan-2010 00:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 25-Jan-2010 10:50:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 tUCi/cc 26-Jan-2010 00:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 27-Jan,2010 01:25:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 29-Jan-2010 17:30:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Jan-2010 02:40:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY)

Q.OOOOE+00 UCilcc 03-Feb-2010 00:40:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 04-Feb-2010 01:10:00 100.00 1 HBM TGA (TOTAL GAMMA ACTIVITY) 9.8882E-09 uCi/cc 04-Feb-2010 23:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 06-Feb-2010 00:40:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+-00 uCi/cc 07-Feb-2010 00:00:00 100.00 1 CAS TGA (TOTAL. GAMMA ACTIVITY) 0:0000E+00 uCi/cc 10-Feb-2010 00:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 11-Feb-2010 10:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi~cc 14-Feb-2010 00:50:00 100.00 1 CAS TGA(TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 16-Feb-2010 00:15:00 100.00 1 CAS.TGA (TOTAL GAMMA ACTIVITY) 0.6000E+00 uCi/cc 17-Feb-2010 00:30:00 100.00 1 CAS" TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCilcc 18-Feb-2010 00:36:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Feb-2010 00:29:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 2.3157E-07 uCi/cc Feb-2010 00:06:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 2.317OE+00 uCi/cc 26-Feb-2010 01:35:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 27-Feb-2010 00:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.O0OOE+00 uCi/cc 28-Feb-2010 00:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY).

0.OOOOE+00 uCi/cc 02-Mar-2010 01:45:00*

100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY).

1.6680E-07 uCi/cc 04-Mar-2010 04:15:00 100.00 1 SMD Repot Geeraed: 1/16201 07:0 Pae .7of Report Generated:

11/16/2010 07:00.Page 7 of 9 OpenCDM.Measurements

-Samplepoint, Analysis,, Sampledate FPL Energy -SEABROOK STATION, From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit 1 Sample Point: SD -STORM DRAINS TITLE -DESCRIPTOR Group-EFF System -LES Analysis .. Value/Meas.

Unit Date/Time Power OnMdde Analyst TGA (TOTAL GAMMA ACTIVITY) 0.000E+00 uCilcc 05-Mar-20.10 04:40:00 100.00 1 SMID TGA (TOTAL GAMMA ACTIVITY), 0.OOOOE+00 uCi/cc 07-Mar-2010 04:35:00 100.00 1SMD TGA (TOTAL GAMMA- ACTIVITY) 0.0000E+00 uCilcc 09-Mar-2010 04:15:00 100.00. 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOE+00 uCi/cc 10-Mar-2010 02:40:00, 100.00 1 SMD*TGA (TOTAL GAMIMA ACTIVITY) 0.00011E+00 uCi/cc 10-Mar-2010 01:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 12-Mar-2010 03:50:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 5.1132E-09 uCi/cc 13-Mar-2010 02:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 5.OOOOE-00 uCi/cc 13-Mar-2010 23:20:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Mar-2010 08:25:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 25-Mar-2010 01:50:00 100.00 1 AP TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 26-Mar-2010 01:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 29-Mar-2010 10:10:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 05-Apr-2010 08:15:00 100.00 1 .CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 12-Apr-2010 11:22:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 19-Apr-2010 08:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) " 0.OOOOE+00 uCi/cc 26-Apr-2010 10:17:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 03-May-2010 08:16:00 1100.00 1 CAS TGA (TOTAL GAMMA AC TIVITY) O.0.000E+00 uCi/cc 10-May-2010 07:54:00 100-.00 1 SMD)TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 17-May-2010 15:10:00 100.00 1 ASMID TGA (TOTAL GAMMA ACTIVITY)

..OOOOE+00 uCi/cc 24-May-2010 10:15:00 100.00 1CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 29-May-2010 12:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 01-Jun-2010 04:110:00

.100.00 1 SMD " TGA (TOTAL GAMMA ACTIVITY) 0.OOOE+00 uCi/cc 02-Jun-2010 03:50:00 100.00 1 SMD" TGA (TOTALGAMMA ACTIVITY)

.000013+00 uCi/cc 03-Jun-2010 03:30:00.

100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 04-Jun-2010 02:00:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY).

0.OOOOE+00 uCi/cc 14-Jun-2010 09:00:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00'uCi/cc

.21-Jun-2010 12:35:00 100.00 1 CAAG TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Jun-2010 13:17:00 100.00 1 MJP TGA (TOTAL GAMMVIA ACTIVITY) 0.OOOOE+00 uCi/cc .28-Jun-2010 10:05:00 100.00 1 SMD TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 05-Jul-2010 10:40:00 100.00 1 AAG TGA (TOTAL GAMMA ACTIVITY)

..000E+00 uCi/cc 12-Jul-2010 08:28:00.

100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OO0O13+00 uCi/ec* 16-Jul-20 10 2 1:50:00 100.00 .1 CAS TGA (TOTAL GAMMA ACTIVITY)

..OOOOE+00 uCilcc 19-Jul-20 10 10:45:100 100.00 1 .CAS TGA (TOTAL GAMMA ACTIVITY).

0.OOOOE+00 uCi/cc. 26-Jul-2010 08:35:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 02-Aug-2010 08:40:00 100'00 "1 CAS TGA (TOTAL-GAMMA ACTIVITY)

-.OOOOE+00 uCi/cc 19-Aug-2010 08:35:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 16-Aug-2010 08:35:00 100.00 1 CAS-eor'inrta il/ "~J1 -./UJr 0 ¢Report ene.rated:

11/16/2010 U 7:0.0 irage 8ofm OpenCDM Measurements

-Samplepoint, Analysis, Sam pledate FPL Energy -SEABROOK STATION From: 01-Nov-2008 00:00 To: 16-Nov-2010 23:59 Unit: 1 -Seabrook Station Unit -1 Sample Point: SD -STORM DRAINS TITLE -DESCRIPTOR Group -EFF System -LES Analysis Value/Meas.

Unit Date/Time Power OpMode Analyst TGA (TOTALGAMMA ACTIVITY) 0.0000E+00 uCi/cc 23-Aug-2010 09:05:00 100.00 1 SDA.TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 26-Aug-2010 03:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 27-Aug-20i10 09:05:00 100.00 1 SDA TGA (TOTAL GAMMA ACTIVITY) 1.9462E-07 uCi/ce 28-Aug-2010 00:45:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 29-Aug-2010 00:15:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 30-Aug-2010 00:10:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 06-Sep-20 10 11:23:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 13-Sep-2010 08:17:00., 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY), 0.OOOOE+00 UCilcc 17-Sep-2010 08:30:00 100.00 1 AJB Results Comment: Waterin Carboy -No alarm, strip chart showed spike..Sample Comment: Spike in activity due to significant rainfall.TGA (TOTAL GAMMA ACTIVITY) 0.OO00E+00 uCi/cc 18-Sep-2010 00:33:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 20-Sep-2010 09:20:00 100.00 1 CMD TGA (TOTAL GAMMA ACTIVITY) 0.OOeOO+00 uCi/cc 27-Sep-2010 10:08:00 100.00 1 WD TGA (TOTAL GAMMA ACTIVITY) 0.0000E-00 uCi/cc 04-Oct-2010 10:15:00 100.00. 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOe+00 uCilcc 11-Oct-2010 07:09:00 100.00 1 WJD TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 17-Oct-2010 18:00:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.6000E+00 uCi/cc 25-Oct-2010 10:33:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 01-Nov-2010 13:30:00 .100.00 1 SDA TGA (TOTALGAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 08-Nov-2010 10:30:00 100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.0000E+00 uCi/cc 15-Nov-2010 07:40:00 -100.00 1 CAS TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 23-Feb-2009 08:48:00*

100.00 1 CAS.{Dup=l}TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 11-May-2009 08:10:00 100.00 1 CAS{Dup=l }TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc "13-Jul-2009 09:05:00 100.00 1 AAG{Dup-}., ,TGA (TOTAL GAMMA ACTIVITY) 0.00e+00 uCi/cc .2-Oct-2009 22:55:00 0.00- 6 WJD{Dup=1}TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 07-Nov-2009 19:50:00 0.00 3 AAG{Dup-l) Q TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 uCi/cc 30-Nov-2009 00:33:00 65.00 1 MIL{Dup=-}TGA (TOTAL GAMMA ACTIVITY) 0:00e+00 uCi/cc 24-Feb-2010 00:06:00 100.00 -1 WJD{Dup 1}TGA (TOTAL GAMMA ACTIVITY) 0.OOOOE+00 UCi/cc 11-Oct-20 10 07:09:00 100.00 1 CAS{Dup=-}TOTAL NUMBER OF MEASUREMENTS:

313 END OF MEASUREMENTS REPORT r Report Generated:

11/16/2010 07:00 Page 9 of)Report Genexated:

11/16/2010 07:00 Page 9 of 9 United States Nuclear Regulatory Comfrission SBK-L- 10185 Enclosure Page 18of26 2. Based on quarterly sampling, tritium has not been detected above detection limits in any of the new temporary offsite monitoring wells (TW-1, TW-2, or TW-3) installed in the marsh south of the Auxiliary Building.

The results of quarterly sampling of the wells are provided below.Date TW-1 TW-2 TW-3 pCi/L) pCi/L) (pCi/L)09/29/09 <580 <580 <579 01/21/10 <610 <602,. <602 06/17/10 ý<573 <564 <564 09/15/10 <662 '<660 -<647 Request.for Additional Information (RAI): Socioeconomics

1. For the last three years, please provide: visitor center attendance data, emergency preparedness fees, mill rates and education taxes, and tax appraisal value of Seabrook Station.NextEra Enermy Seabrook Response: L.a Visitor Center Attendance Data: The Science & Nature Center (S&NC) has welcomed the general public and scheduled group visitors since 1978. In-the 1980s and early 90s, the..Center averaged 25,000 -30,000 visitors annually.

After 9/11 the Center was closed for a period of time and then had limited offerings from 2001-2004.

Just prior to September 11, 2001 the S&NC visitations had reached 500,000 visitors.

Since 2001 the S&NC has averaged 3,000 -4,000 visitors per year. The estimated total lifetime Visitations for the S&NC from 1978-2010 is estimated at 536,000. Specific numbers of visitors for 2007 -through September 2010 are provided below: Year Students Walk-Ins Total 2007 2,432 948 3,380 2008 1,883 1,916 3,799 2009 2,167 2,319 4,486 2010 2,283 2,083 4,366 United States Nuclear Regulatory Commission SBK-L- 10185 / Enclosure Page 19 of 26 1 .b Emeruency Preparedness Fees: Emergency Preparedness Fees and contributions to state and federal agencies for the past three years are provided in the table below.2008 2009 2010 FEMA 451,076 492,326 517,1712,018,746 2,178,750 2,254,711 MASSACHUSSETTS 845,957 672,034 658,984 MASS DEPT PUBLIC HEALTH 85,170 92,446 86,956 MAINE 59,964 70,500 73,000 MASS TRAINING 225,000 165,000 195,000 EOC GENERATORS in'MASS -and NH (replacement and repair) 80,000 80,000 80,000 Radio Replacement in MASS 153,264 0 0 NH PAGERS 20,000 20,000 20,000ýDOSIMETRY NH and MASS 21,000 21,000 21,000 *TOTALS 3,962,185 3,794,065 3,908,832 1 .c Mill rates and education taxes, and tax appraisal value of Seabrook Station: Tables 2 and 3 provide data for the NextEra Energy. Seabrook ownership share (88.22889%).

Additionally, Tables 2b and 3b have been provided which represent the taxes paid by all Seabrook Station Joint Owners.Table 4 provides the Town of Seabrook tax rates for 2007 to 2009. Town of Seabrook collections include rates associated with the town, local schools and the county. Local property taxes are assessed, levied, and collected by municipalities in accordance with RSA Chapter 76,"Apportionment, Assessment, and Abatement of Taxes" Seabrook Station is subject to RSA Chapter 83-F, "Utility Property Tax" which provides funds for the Education Trust Fund and is assessed and collected by the State of New Hampshire.

Therefore; the Town of Seabrook does not assess or collect for the Education Trust Fund and the "State School Rate" in Table 2.7.-4 is zero.RSA Chapter 83-F, "Utility Property Tax" (NHRSA2010b) provides details related to the process that applies ,to Seabrook Station utility property taxes. Per the statute,-the tax commissioner shall determine the value of utility. property for the purposes of this chapter by appraising such property at its full and true value. The tax is imposed upon the value of utility property at the rate of $6.60 on each $1000 of such value, to be assessed annually as of April 1.

United States Nuclear Regulatory Commission SBK-L- 101'85 / Enclosure Page 20 of 26 RSA Chapter 76, "Apportionment, Assessment, and Abatement of Taxes" provides details related to the process that applies to local property taxes that are assessed, levied, and collected by municipalities.

The taxes are based on land and building value as of April 1.Appraised values are determined using industry standard practices.

One approach is the income approach which determines value based a forecast of future net operating income.Table 2 Town of Seabrook Tax Information for NextEra (88.22889%

of Seabrook Station)Seabrook Property Town of Seabrook's Seabrook Payments as Tax Payments Net Tax Percent of Town's Net Year ($) Commitment

($) Tax Commitment 2003 9,734,012 25,972,265 37.5%2004 7,809,505 23,225,879 33.6%2005 7,439,760 25,169,483 29.6%2006 9,103,912 26,966,949 33.8%'2007 9,709,631 28,722,320 33.8%2008 13,589,935 32,002,616 42.5%2009 12,265,972 32,014,031 38.3%Table 2b Town of Seabrook Tax Information for all Joint Owners (100%)Seabrook Property Town of Seabrook's Seabrook Payments as Tax Payments Net Tax Percent of Town's Net Year (M) Commitment

($) Tax Commitment 2003 11,029,861 25,972,265 42.5%2004 8,848,570 23,225,879 38.1%2005 8,429,081 25,169,483 33.5%2006 10,526,811 26,966,949 39.0%2007 11,227,201 28,722,320 39.1%2008 15,598,308 32,002,616 48.7%2009 14,122,602 32,014,031 44.1%

United States Nuclear Regulatory Commission SBK-L-10 185 / Enclosure Page 21 of 26 Table 3 New Hampshire Department of Revenue Administration Education Trust Fund Utility Property Tax Information for NextEra (88.22889%

of Seabrook Station)Seabrook Payments as Seabrook Property NHDRA Education Percent of NHDRA Tax Payments Trust Fund Revenues Education Trust Fund Year. () (M) Revenues 2003 3,616,741 282,495,534 1.3%2004 3,988,828 289,071,911 1.4%2005 4,009,624 304,732,913 1.3%2006 4,277,710 360,775,854 1.2%2007 5,809,354 383;781,559 1.5%2008 7,649,709 395,977,096 1.9%2009 6,528,730 373,942,370 1.7%Table 3b New Hampshire Department of Revenue Administration Education Trust Fund Utility Property Tax Information for all Joint Owners (100%)Seabrook Payments as Seabrook Property NHDRA Education Percent of NHDRA Tax Payments Trust Fund Revenues Education Trust Fund Year ($) ($) Revenues 2003 4,099,271 282,495,534 1.5%2004 4,521,000 289,071,911 1.6%2005 4,703,575 304,732,913 1.5%2006 4,917,109 360,775,854 1.4%2007 6,657,661 383,781,559 1.7%2008 8,802,955 395,977,096 2.2%2009 7,536,520 373,942,370 2.0%

United States Nuclear Regulatory Commission SBK-L-10185

/Enclosure

• Page 22 of 26 Table 4 Town of Seabrook Tax Rates (dollars per $1,000 taxable value)Year 2007 2008 2009 TownRate 5.21 4.77 5.28 Local School Rate 4.77 3.96 4.40 State School Rate 0 0 0 County Rate 0.76 0.71 0.96 Beach Precinct Rate 0 0 0 Total Rate 10.74 9.44 10.64 Request for Additional Information (RAI): References Requested for Docketing at the Seabrook Station Environmental Site Audit Meteorology and Air Quality A. Seabrook Station, Design Basis Document, Meteorological Monitoring System, DBD-MET-01, Revision 2, January 7, 2010.B FPL. Company -New England Division, 345 kV Seabrook Transmission Substation SF6 Emissions Reduction Partnership for Electric Power Systems, Annual Reports for 2005-2009.C NHDES, Stage I/II Gasoline Vapor Recovery System, Certificate of Compliance, March 20, 2008.D NHDES, Title V Operating Permit, TV-OP-0 17, Issued June 5, 2006.E NHDES, Issuance of General State Permit: GSP-EG-225, Issued July 2, 2008.F Letter of Deficiency for the Title V air permit issued by New Hampshire Department of Environmental Services in 2010 and any subsequent related correspondence Aquatic Ecology-A. ARCADIS et. al. (ARCADIS, Normandeau Associates Inc., Wayne C. Micheletti, Inc., and Harris Group, Inc.). 2008. Cooling Water Intake Structure information.

Document.Prepared for FPL Energy Seabrook, LLC. July 2008.(Note that Appendix F is privileged and confidential.

If the NextEra feels it is appropriate, you can request that this appendix be non-public by filling out an affidavit under 10 CFR 2.390.)B Florida Power and Light (FPL). 2006. Seabrook Station NPDES Permit NH0020338 Renewal Application.

September 2006.(Please include cover letter and Clean Water Act Section 316(a) and (b) certifications.)

United States Nuclear Regulatory Commission SBK-L- 10 185 / Enclosure Page 23 of 26 C NAI (Normandeau Associates, Inc.). 1988. Seabrook Environmental Studies, 1987. A Characterization of Baseline in the Hampton-Seabrook Area, 1975-1987.

A'preoperational study for Seabrook Station Technical Report XIX-II. Prepared for NH Yankee Division Public Service Company of New Hampshire.

November 1988.D NAI (Normandeau Associates Inc.). 1991. Seabrook Station 1990 Environmental Studies in the Hampton -Seabrook Area: A Characterization of Environmental Conditions.

E NAI (Normandeau Associates Inc.). .1994. Seabrook Station 1993 EnVironmental Studies in the Hampton -Seabrook Area: A Characterization of Environmental Conditions.

Prepared for North Atlantic Energy 'Service Corporation.

F NAI (Normandeau Associates Inc.). 1995. Seabrook Station 1994 Environmental Monitoring in the Hampton -Seabrook Area: A Characterization of Environmental Conditions.

Prepared for North Atlantic Energy Service Corporation.

G NAI (Normandeau Associates, Inc.). 1.997. Seabrook Station 1996 Environmental Monitoring in the Hampton-Seabrook Area: A Characterization of Environmental Conditions.

H NAI (Normandeau Associates Inc.). 2001. Seabrook Station Essential Fish Habitat Assessment.

R-18900.009.

Prepared for North Atlantic Energy Service Corporation.

I NAI (Normandeau Associates, Inc.). 2008. Seabrook Station 2007 Environmental Monitoring in the Hampton-Seabrook Area: A Characterization of Environmental Conditions.

Prepared for FPL Energy Seabrook Station.J NAI (Normandeau Associates, Inc.). 2010. Seabrook Station 2009 Environmental Monitoring in the Hampton-Seabrook Area: A Characterization of Environmental Conditions.

Prepared for FPL Energy Seabrook Station.K NAI (Normandeau Associates, Inc.). 2010. Seabrook Station 2010 Environmental Monitoring Program Mid-Year Report.L NAI and ARCADIS. (Normandeau Associates, Inc. and ARCADIS).

2008. Seabrook Nuclear Power Station EPA 316(b) Phase II Rule Project, Revised Proposal for Information Collection.

Section 7.0. Prepared for FPL Energy Seabrook Station. June 2008.M NAI (Normandeau Associates, Inc.) and BBL (Blasland Bouck and Lee). 2006.Seabrook Nuclear Power Station EPA 316(b) Phase II Rule Project Proposal for Information Collection.

Prepared for FPL Energy Seabrook Station. Bedford, New Hampshire, Normandeau Associates.

May 2006.(Please also include associated letter to EPA dated May 4, 2006.)N NMFS (National MarineFisheries Service).

2004. Letter From L. Allen, Office of Protected Resources to A. Legendre, FPL Energy Seabrook Station Regarding' Withdrawal of Application for Incidental Take Authorization.

May 7, 2004.O Padmianabhan M and Hecker GE. 1991. Comparative evaluation of hydraulic model and field thermal plume data Seabrook Nuclear Station. Alden Research Laboratory, Inc.Sponsored by New Hampshire Yankee Division of Public Service Company of New Hampshire.

"

United States Nuclear Regulatory Commission SBK-L- 10185 / Enclosure Page 24 of 26 P Seabrook Station. 2010. Bivalve Larvae Entrainment Sampling.

ZN1120.02, Rev.00, Chg. 03. Regulatory Compliance Procedure.

Q Seabrook Station. 2010. Icthyoplankton Entrainment Sampling.

ZN1120.01, Rev.01, Chg. 03. Regulatory Compliance Procedure.

Hydrology and Water Quality A. Seabrook, 2010, Environmental Reclamation of 32 Acres behind General Office Building,-Rev.

1, March 23 B Radiation Safety & Control Services, Inc. (RSCS), 2009a, Site Conceptual Ground...Water Model for Seabrook Station, Rev. 01, TSD #09-019, June 9 C Radiation Safety & Control Services, Inc. (RSCS), 2009b, Tritium Distribution and Ground Water Flow at Seabro6k Station, Rev. 00, TSD #09-039, August 31 D NextEra Energy Seabrook, LLC, 2009, Stormwater Pollution Prevention Plan for NextEra Energy Seabrook, Rev. 41, July 1 E NHDES, 2010, NPDES Compliance Evaluation Inspection for NPDES Permit No.NH0020338, letter from P. Heirtzler, Wastewater Engineering Bureau, to A. Legendre, NextEra Energy Seabrook LLC, July 20 F NHDES, 2010, NPDES Compliance Evaluation Inspection for NPDES Permit No.NH0020338, letter from P. Heirtzler, Wastewater Engineering Bureau, to A. Legendre, NextEra Energy Seabrook LLC, June 15 G NextEra Energy Seabrook, 2010, Response to Letter of Deficiency

-NPDES Compliance Evaluation Inspection, letter from M. O'Keefe, Licensing Manager, to State of New Hampshire, Department of Environmental Services, July 15 H Well completion data and elevation data for wells TW-1, TW-2, and TW-3 and the recent SW- series wells (circa 2009 and 2010)I Current illustrations of tritium data (plume) and groundwater elevation contours in surficial and bedrock aquifers, September 2010 (prepared by RSCS)J USEPA letter regarding timely and complete NPDES permit renewal application (circa 2006)K Discharge Monitoring Reports (DMRs) for the last 12 months, as submitted to the USEPA per NPDES Permit #NH0101303 Archaeological and Cultural Resources A. Seabrook Station Program Manual, Environmental Compliance Manual, Rev. 41 (NAEC) excluding appendices B Cultural Resources Protection Plan (Draft) and Final, when available C Cultural Resources Management Plan, Seabrook Nuclear Power Plant, Seabrook and Hampton Falls, New Hampshire, May 2010 by Brian Valimont, New England Archaeology Co., LLC United States Nuclear Regulatory Commission Page 25 of 26, SBK-L-10 185 / Enclosure NextEra Eneray Seabrook Response: The requested documents are enclosed in Attachment 2 as indexed in the list above. In some instances as described below, additional information is provided for clarity.Meteorology and Air Quality Item A Revision 3 of the Seabrook Station Design Basis Document, Meteorological Monitoring System, DBD-MET-01, was issued on October 19,2010, and is included along with the requested Revision 2.Item F A response to the NH DES identified Air Toxics Deficiency, letter SBK-L- 10150, was submitted on November 8, 2010.Aquatic Ecology Item A Is provided without inclusion of Appendix F; "Analysis of a Cooling Tower Retrofit Option for FPL Seabrook Nuclear Power Station".

As noted in the document request, Appendix F is considered Privileged and Confidential.

Should the reviewers determine that the'material in Appendix F be required, NextEra Seabrook, LLC will make the information available for review at NextEra offices or submit for docketing in accordance with 10 CFR 2.390.Hydrology and Water Quality Item D Revision 42 of the Stormwater Pollution Prevention Plan for NextEra Energy Seabrook was issued on October 15, 20 10, and is included along with the requested revision.

Attachments A-E were not revised in Revision 42 and are only included with Revision 41.Item J Shelley B. Puleo, US Environmental Protection Agency to Mr. Gene St. Pierre, FPL Energy Seabrook, LLC: RE: NPDES Application No. NH0020338-FPL Energy Seabrook LLC, dated May 25, 2007.Item H Well completion data is provided for the following wells:. BD-6, SD-5, SW-4, SW-5, TW-1, TW-2, TW-3..

United States Nuclear Regulatory Commission Page 26 of 26 SBK-L- 10185 / Enclosure Archaeological and Cultural Resources Item B The drafts of the Cultural Resourse Plan that Will be added to the Seabrook Station Environmental Compliance Manual and associated site excavation procedure are provided.Item C Cultural Resources Management Plan, Seabrook Nuclear Power Plant, Seabrook and Hampton Falls, New Hampshire, May 2010, by Brian Valimont, New England Archaeology.

Co., LLC, will be submitted via, separate letter (SBK-L-10190).

NextEra Energy Seabrook, LLC requests that the Enclosure to SBK-L- 10190, which contains information regarding the location of historic properties, be withheld from public disclosure in accordance with 36 CFR 800.11(c).

Attachment 1 to SBK-L-10185 Seabrook Station Response to Request for Additional Information NextEra Energy Seabrook License Renewal Environmental Report L.a The annual air emission reports for Title V permitted source TV-OP-0 17 0 0 0 0 0 2009: 2008: 2007: 2006: 2005: SBK-L-10059, SBK-L-09062, SBK-L-08040, SBK-L-07076, SBK-L-06075, April 8, 2010 April 15, 2009 March 31, 2008 April 17, 2007 April 133 2006 1 .b The Title V permitted source GSP-EG-225 reports.0 S 0 2006/2007 2008 2009 SBK-L-08071, SBK-L-09120, SBK-L-10058, April 23, 2008 May 22, 2009 April 13, 2010 Attachment 2 to SBK-L-10185 Seabrook Station Response to Request for Additional Information NextEra Energy Seabrook License Renewial Environmental Report References Requested for Docketin$

at the Seabrook Station Environmental Site Audit Attachment 3 to SBK-L-10185-Seabrook Station Response to Request for Additional Information NextEra Energy Seabrook License Renewal Environmental Report New Hampshire Fish and Game Department letterdated August 10, 2010; regarding Seabrook Station 2010 Environmental Monitoring Program Mid-Year Report NextEra Energy Seabrook, LLC letter SBK-L-10175; "Response to Comments on 2010 Environmental Monitoring Program Mid-Year Report, October 15, 2010.Seabrook Station memo NYE-97010 dated March 20, 1996, documenting.the suspension the Seabrook Station Gill Net Monitoring Program on March 19,1997.