HNP-17-024, Annual Environmental (Nonradiological) Operating Report

Annual Environmental (Nonradiological) Operating Report

ML17118A332
Person / Time
Site:	Harris
Issue date:	04/28/2017
From:	Hamilton T Duke Energy Progress
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
HNP-17-024
Download: ML17118A332 (10)

Text

,( -... DUKE Tanya M. Hamilton Vice President

• ' ENERGYai Harris Nuclear Plant 5413 Shearon Harris Rd New Hill, NC 27562-9300 919-362-2502 APR 2 8 *1811 Serial: HNP-17-024 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Shearon Harris Nuclear Power Plant, Unit 1 Docket No. 50-400/Renewed License No. NPF-63

Subject:

Annual Environmental (Nonradiological) Operating Report Ladies and Gentlemen:

In accordance with Section 5.4.1 of the Environmental Protection Plan, issued as Appendix B to the Renewed Operating License (NPF-63) for the Harris Nuclear Plant, Duke Energy Progress, LLC, is providing the enclosed Annual Environmental (Non radiological) Operating Report for 2016.

This submittal contains no regulatory commitments. Should you have any questions regarding this submittal, please contact Jeffery Robertson, Manager- Regulatory Affairs, at (919) 362-3137.

Sincerely, qehcr A ~*Cffe_

Tanya M. Hamilton Enclosure cc: D. Retterer, NRC Sr. Resident Inspector, HNP M. Barillas, NRC Project Manager, HNP C. Haney, NRC Regional Administrator, Region II

Tanya M. Hamilton Vice President Harris Nuclear Plant 5413 Shearon Harris Rd New Hill, NC 27562-9300 919-362-2502 Serial: HNP-17-024 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Shearon Harris Nuclear Power Plant, Unit 1 Docket No. 50-400/Renewed License No. NPF-63

Subject:

Annual Environmental (Nonradiological) Operating Report Ladies and Gentlemen:

In accordance with Section 5.4.1 of the Environmental Protection Plan, issued as Appendix B to the Renewed Operating License (NPF-63) for the Harris Nuclear Plant, Duke Energy Progress, LLC, is providing the enclosed Annual Environmental (Nonradiological) Operating Report for 2016.

This submittal contains no regulatory commitments. Should you have any questions regarding this submittal, please contact Jeffery Robertson, Manager - Regulatory Affairs, at (919) 362-3137.

Sincerely, Tanya M. Hamilton Enclosure cc: D. Retterer, NRC Sr. Resident Inspector, HNP M. Barillas, NRC Project Manager, HNP C. Haney, NRC Regional Administrator, Region II

Duke Energy Progress, LLC Shearon Harris Nuclear Power Plant Unit 1 ANNUAL ENVIRONMENTAL (NONRADIOLOGICAL)

OPERATING REPORT January 1, 2016 through December 31, 2016 Renewed Facility Operating License No. NPF-63 Appendix B Docket No. 50-400

1.0 INTRODUCTION

Duke Energy Progress, LLC (previously known as Duke Energy Progress, Inc., and Carolina Power & Light Company), received a low-power Facility Operating License (No.

NPF-53) and full-power Facility Operating License (No. NPF-63) for the Shearon Harris Nuclear Power Plant, Unit 1 (HNP), from the U.S. Nuclear Regulatory Commission (NRC) on October 24, 1986, and January 12, 1987, respectively. The NRC issued a Renewed Facility Operating License (No. NPF-63) on December 17, 2008, extending operations until October 24, 2046. Appendix B (the Environmental Protection Plan [EPP]

[nonradiological]) of the renewed operating license requires submittal of an Annual Environmental (nonradiological) Operating Report to the NRC describing the implementation of the plan during the previous year. The purpose of this document is to fulfill the requirement for the period of January 1 through December 31, 2016.

On September 18, 2015, The North Carolina Department of Environment and Natural Resources (NCDENR) officially became the North Carolina Department of Environmental Quality (NCDEQ). NCDEQ will be used in this report.

2.0 PLANT CONSISTENCY REQUIREMENTS [EPP Section 3.0]

2.1 Plant Design and Operation There were no changes in plant design or operation and there were no tests or experiments performed which involved a potentially significant unreviewed environmental question during the reporting period.

2.2 Reporting Related to the NPDES Permit As required by National Pollutant Discharge Elimination System (NPDES) permit NC0039586, monitoring data was submitted to the NCDEQ via monthly discharge monitoring reports (DMRs) and separate correspondence as warranted.

HNP submitted an application for renewal of the NPDES Permit to NCDEQ on January 26, 2011, and NCDEQ received the application on January 27, 2011.

HNP submitted a copy of the renewal application to the NRC by letter dated January 31, 2011.

Since the renewal application submittal requirements had been met (i.e.,

submitted at least 180 days prior to expiration), by regulation, HNP continued to operate under the expired NPDES Permit until NCDEQ issued the new permit.

The NCDEQ issued a renewed NPDES permit NC0039586, which became effective on September 1, 2016. This permit will expire on August 31, 2021. HNP submitted a copy of the renewed permit to the NRC by letter dated September 28, 2016, as required by Renewed Facility Operating License No. NPF-63 Appendix B.

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3.0 UNUSUAL OR IMPORTANT ENVIRONMENTAL EVENTS [EPP Section 4.1]

No occurrence of an unusual environmental event that would indicate or could result in a significant environmental impact causally related to plant operations occurred during the reporting period. No releases or exceedances of permit conditions caused any significant environmental impact. The existence of biofouling organisms (Asiatic clams, Corbicula fluminea) and the presence of troublesome aquatic vegetation (hydrilla, Hydrilla verticillata) in the Harris Reservoir are considered important topics worthy of inclusion in this report. No zebra mussels were detected at any location in the Harris Lake or the auxiliary reservoir during 2016.

3.1 Aquatic Biological Monitoring A. Inspections for Asiatic clams (Corbicula fluminea) in the Harris Nuclear Plant Emergency Service Water System (e.g., intake structures)

The Emergency Service Water (ESW) intake structure is inspected once every three years in accordance with the engineering evaluation (Engineering Change 49074) of HNPs Generic Letter 89-13 Testing and Inspection Program. An inspection of an ESW screening structure bay occurred during October 2016. The inspection indicated a stable Asiatic clam population.

No clogging events of HNP cooling water systems occurred during 2016 as a result of Asiatic clam infestation.

B. Monitoring aquatic vegetation Main Reservoir Hydrilla was found in much of the main reservoir during 2016. Hydrilla and creeping water primrose were abundant and filled most of the available habitat at Transect S upstream of the New Hill-Holleman Rd. causeway.

Hydrilla was not observed in Transect V or in the shallow bay adjacent to the mouth of the main intake canal. Green filamentous algae was observed on the bottom substrate throughout much of Transect V. In the mid-lake area (Holleman Boat Ramp), hydrilla was present in variable amounts, but appears reduced from previous years. Prior to 2008, the Buckhorn Creek arm of the lake was primarily hydrilla, but now primarily supports a large Lyngbya algal population. Lyngbya is also present throughout the embayment near the dam and the Crosspoints Boat launch. Other aquatic plant species found in the reservoir include fanwort (Cabomba sp.), and typical Atlantic slope Piedmont species such as Chara sp., spikerush (Eleocharis baldwinii), and native pondweed species in the genera Potamogeton and Najas. The shoreline aquatic plant community is typical of Piedmont reservoirs including such plants as cattails, pickerelweed, lizard tail, bulrush, and others. No new species of aquatic plants were observed in the main reservoir.

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Auxiliary Reservoir Some hydrilla and American elodea were found to be present in the auxiliary reservoir during 2010. However, it is currently under management using sterile Asian grass carp. No hydrilla or American elodea were found in the Auxiliary reservoir in 2016. Grass carp were stocked in 2011, 2013, 2014, 2015, and 2016. Although no hydrilla was observed, there may still be tubers in bottom sediments.

No hydrilla, American elodea, bladderwort, or southern pond weed was observed in the auxiliary intake canal or along the shoreline adjacent to the auxiliary intake canal in 2016. The dominant vegetation observed along the auxiliary intake canal was Eleochris baldwinii, a small grass-like submerged plant that poses no operational concern. Creeping water primrose (Ludwigia spp.) was also present but in small amounts.

No impacts to HNP operations from aquatic vegetation occurred in 2016.

3.2 Combined Construction and Operating License Application Evaluations In a letter dated February 18, 2008, Carolina Power & Light Company submitted an application for a combined construction permit and operating license (COL) for two AP1000 advanced pressurized water reactor units to be located at the Shearon Harris Nuclear Power Plant site. In the initial application, Carolina Power & Light Company relied on Integrated Resource Plans (IRPs) prepared for the North Carolina Utilities Commission and the Public Service Commission of South Carolina to demonstrate the need for the two units. The IRPs used a 15-year period for forecasting native load requirements, supply-side and demand side resources, and options considered for satisfaction of the load requirements and other system obligation. Duke Energy Progress, LLC (DEP), continued to evaluate the need for power, however the commercial operation dates for the two units no longer fell within the 15-year planning window of the IRP. DEP requested an additional exemption in a letter dated October 13, 2016, to the NRC. The NRC renewed the exemption through December 31, 2019.

No work was performed in 2016 in support of the COL for the two units at the Shearon Harris Nuclear Power Plant site.

No significant environmental impacts have been caused or identified by these activities.

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4.0 ENVIRONMENTAL MONITORING [EPP Section 4.2]

4.1 Aquatic Monitoring [EPP Section 4.2.1]

Under the authority of the Clean Water Act, the state of North Carolina renewed the HNP NPDES permit (NC0039586), which took effect on September 1, 2016.

The permit includes the Harris Energy & Environmental Center (HE&EC) sewage treatment plant discharge as an outfall (007).

The permit requires that a state-certified laboratory perform the analyses on all non-field parameters analyzed for effluent samples. In accordance with this requirement, the HNP Environmental & Chemistry Laboratory was certified by NCDEQ as a Wastewater Laboratory, effective January 1, 2016, and valid through December 31, 2016. In addition, the Duke Energy Carolinas Laboratory in Huntersville, NC, provided NPDES analytical support for effluent samples.

In addition, during 2016 DEP contracted with four NCDEQ certified private laboratories to perform analyses: Environmental Conservation Laboratories, Inc.

(ENCO), Environmental Testing Solutions, Inc. (ETS), GEL Laboratories (GEL),

and PACE Analytical Laboratories (PACE).

4.1.1 Effluent Monitoring Routine effluent monitoring was conducted and reported to NCDEQ as required by the NPDES permit. The following NPDES permit noncompliances or events occurred:

September 2016, Fecal Coliform Exceedance - The fecal coliform daily maximum of 400 MPN/100 mL was exceeded on September 13 and 20, 2016, for the HNP Sewage Treatment Plant (STP). The sample results were 433 MPN/100 mL and 3,137 MPN/100 mL. These results are recorded on the September 2016 DMR for Outfall 002.

There was a hydraulic overloading on the existing STP system (pre-expansion) due to increased personnel and flow to the system. This was compounded by an equipment outage with increased personnel on day and night shift and heavy rain. This increased loading did not allow adequate processing time and the system was unable to recover due to the continuous inflow. This was a known gap in system operation and the reason for implementing the expansion of the treatment system to process increased system flow during periods of increased personnel.

At the time of the excursion, the HNP sewage treatment was in the process of start-up of the expansion of the treatment system in order to allow a daily flow of up to 65,000 GPM per the newly revised NPDES permit, effective September 1, 2016.

No impacts to the environment were observed.

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October 2016 Sanitary Wastewater Release - A release of sanitary wastewater was reported by telephone to the Division of Emergency Management on Sunday, October 9, 2016. Duke Energy personnel observed an onsite sanitary lift station overflowing Saturday, October 8, 2016, at 1620 EDT due to a loss of power to the lift station. Duke Energy personnel worked diligently during Hurricane Matthew conditions to return the affected pump station to proper operations. The lift station overflowed for less than an hour and the release was estimated to be less than 1000 gallons. The lift station is located approximately twenty (20) feet from a storm drain which discharges to Harris Lake. Due to heavy rain (measured at the site to be greater than 5 inches) and winds from Hurricane Matthew, it was difficult to determine the exact amount of sewage that went into the storm drain.

On October 12, 2016, DEP submitted a 5-day follow-up letter to the NCDEQ as required by NPDES Permit Number NC0039586.

On October 24, 2016, DEP submitted a copy of the 5-day follow-up letter to the NRC as required by Renewed Facility Operating License No. NPF-63 Appendix B.

No adverse effects to Harris Lake were observed as a result of the release.

The lake levels appeared to be approximately three (3) feet higher than normal conditions due to rainfall impacts associated with Hurricane Matthew.

December 2016 Notice of Violation Case No. NOV-2016-LV-0641 - On December 13, 2016, Duke Energy Progress, LLC, received the subject Notice of Violation & Intent to Assess Civil Penalty letter dated December 6, 2016.

On September 13, 2016, and September 20, 2016, the Daily Maximum Limit Values were exceeded for Fecal Coliform at the Harris Sanitary Waste Treatment Plant (Outfall 002). As described in the September 2016 DMR submitted to NCDEQ, the principle causes for these effluent exceedances were related to the following aspects:

(1) Facility operations were impacted by the Harris Nuclear Plants maintenance outage, which increased personnel onsite and sanitary flows to system; compounded by heavy rain; (2) The expansion of the sanitary waste treatment plant from 0.025 to 0.065 MGD (million gallons per day) was in the process of start-up and had not yet reached stable operating conditions.

Both of these aspects played a role in the allowance to expand and operationally stabilize the sanitary waste treatment plant to assure compliance with all of the terms, conditions, and requirements of the newly issued NPDES permit. HNPs sanitary waste treatment system has performed well since this expansion phase, which coincided with a planned maintenance outage in which hundreds of additional personnel were on site.

This allowed HNP to further test and prove the wastewater treatment system expansion met the terms, conditions, and requirements of the new NPDES permit. In addition, HNP successfully worked through this transitional period without the use of any temporary or extended storage as utilized during past outage operations.

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Duke Energy Progress, LLC, respectfully requested that the NCDEQ Division of Water Resources take into consideration these aspects related to the subject Notice of Violation prior to a decision.

On December 19, 2016, DEP submitted a 10-day follow-up letter to the NCDEQ as required by Notice of Violation Case No. NOV-2016-LV-0641.

No additional communications have been received from NCDEQ regarding this item.

December 2016 Sanitary Wastewater Release - A release of sanitary wastewater was reported by telephone to the Division of Water Resources Raleigh Regional Office on Wednesday, December 21, 2016. Duke Energy personnel identified a sanitary wastewater release at the Harris Energy &

Environmental Center Tuesday, December 20, 2016, at approximately 1330 EST. The release was subsequently isolated.

The release appeared to be a result of a cracked PVC pipe on the filter backwash return line between the polishing lagoon (Lagoon 3) and Lagoon 1 that originated below grade and created saturated conditions which eventually surfaced. The release was contained by the topography of the land. A walkdown of the area and sampling in the downgradient locations demonstrated that the partially-treated waste stream did not reach surrounding surface waters or tributaries. The assessment of the area was performed by the Operator in Responsible Charge at the associated facility.

Based upon conservative volume calculations, the release was estimated to be approximately 75,000 - 100,000 gallons.

On December 22, 2016, DEP submitted a 5-day follow-up letter to the NCDEQ as required by NPDES Permit Number NC0039586.

No impacts to the environment were observed.

4.1.2 NPDES Inspections No NPDES inspections occurred in 2016.

4.2 Terrestrial Monitoring [EPP Section 4.2.2]

Terrestrial monitoring is not required.

4.3 Noise Monitoring [EPP Section 4.2.3]

Noise monitoring is not required.

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5.0 EPP REVIEW and AUDIT [EPP Section 5.1]

DEP provides for the review and audit of compliance with the EPP on a periodic frequency. The results of these reviews and audits are on file and available for inspection.

6.0 PLANT REPORTING REQUIREMENTS [EPP Section 5.4]

6.1 EPP Noncompliances There were no EPP noncompliances identified during the reporting period.

NPDES permit noncompliances are discussed in Section 4.1.1 of this report.

6.2 Changes in Station Design and Operation There were no changes in station design or operation and there were no tests or experiments performed which involved a potentially significant unreviewed environmental question during 2016.

6.3 Non-routine Reports There were no additional non-routine reports submitted in accordance with EPP Section 5.4.2 aside from the one mentioned in Section 4.1.1.

6.4 Other Reporting Requirements There were no other EPP reportable events during 2016.

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