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HomeMy WebLinkAbout20030191 Ver 3_Approval Letter_20140311March 11, 2014 DWR # 03 -0191 V3 Graham & Swain Counties Brookfield Smoky Mountain Hydropower, LLC Attn: Marshall L. Olson 314 Growdon Boulevard Tallassee, TN 37878 Subject: Approval of Individual 401 Water Quality Certification with Additional Conditions — Revision 2 Smoky Mountain Hydro Project (formerly Tapoco Hydroelectric Project) FERC # 2169 Dear Mr. Olson: Attached hereto is a copy of Certification No. 3447 issued to Marshall L. Olson and Brookfield Smoky Mountain Hydropower, LLC, dated March 11, 2014. This certification replaces the previous certification issued on November 8, 2004. Please note that you should get any other federal, state or local permits before proceeding with the subject project, including those required by (but not limited to) Sediment and Erosion Control, Non - Discharge, and Water Supply Watershed regulations. This approval and its conditions are final and binding unless contested. This Certification can be contested as provided in Articles 3 and 4 of General Statute 1508 by filing a written petition for an administrative hearing to the Office of Administrative Hearings (hereby known as OAH) within sixty (60) calendar days. A petition form may be obtained from the OAH at http:/ /www.ncoah.com/ or by calling the OAH Clerk's Office at (919) 431 -3000 for information. A petition is considered filed when the original and one (1) copy along with any applicable OAH filing fee is received in the OAH during normal office hours (Monday through Friday between 8:00am and 5:00pm, excluding official state holidays). 401 & Buffer Permitting Unit Ta7One 1, t 1650 Mail Service Center, Raleigh, North Carolina 27699 -1650 1 V orthCarOfina Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919 -807 -63001 FAK 919- 807 -6494 \ Customer Service: 1 -877- 623 -6748 Nalzmally Internet: www ncwaterquality.org Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 2 of 12 The petition may be faxed to the OAH at (919) 431 -3100, provided the original and one copy of the petition along with any applicable OAH filing fee is received by the OAH within five (5) business days following the faxed transmission. Mailing address for the OAH: If sending via US Postal Service: If sending via delivery service (UPS, FedEx, etc): Office of Administrative Hearings Office of Administrative Hearings 6714 Mail Service Center 1711 New Hope Church Road Raleigh, NC 27699 -6714 Raleigh, NC 27609 -6285 One (1) copy of the petition must also be served to DENR: Lacy Presnell, General Counsel Department of Environment and Natural Resources 1601 Mail Service Center Raleigh, NC 27699 -1601 Unless such a petition is filed, this Certification shall be final and binding. This certification completes the review of the Division under section 401 of the Clean Water Act and 15A NCAC 02H .0500. Contact me at 919 - 807 -6360 or karen.higgins @ncdenr.gov or Jennifer Burdette at 919 - 807 -6364 or jennifer.burdette @ncdenr.gov or if you have any questions or concerns. Sincerely, Karen Higgins, Supervisor 401 & Buffer Permitting Unit cc: Fred Tarver, NCDWR (via email) Chris Goudreau, NCWRC (via email) USACE Asheville Regulatory Field Office Todd Bowers, EPA, Sam Nunn Federal Center, 61 Forsyth Street SW, Atlanta, GA 30303 DWR ARO 401 files DWR 401 & Buffer Permitting Unit Filename: 03019lV3BrookfieldTapoco (GrahamSwain)_401_IC_Mod.docx Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 3 of 12 NORTH CAROLINA 401 WATER QUALITY CERTIFICATION CERTIFICATION #3447 is issued in conformity with the requirements of Section 401, Public Laws 92 -500 and 95 -217 of the United States and subject to North Carolina's Regulations in 15 NCAC 02H .0500, to Marshall L. Olson and Brookfield Smoky Mountain Hydropower, LLC, who have authorization to retain the Santeetlah and Cheoah Dams on the Cheoah and the Little Tennessee Rivers, as described within your revised application received by the N.C. Division of Water Resources (Division) on February 19, 2003, subsequent information on March 18, 2003 and October 30, 2003, request for modification on December 20, 2013 and subsequent information on January 28, 2014. The State of North Carolina certifies that this activity will not violate the applicable portions of Sections 301, 302, 303, 306, 307 of the Public Laws 92 -500 and PL 95 -217 if conducted in accordance with the application, the supporting documentation, and conditions hereinafter set forth. This approval is only valid for the purpose and design that you submitted in your application, as described in the revised application. If you change your project, you must notify us and may be required to send us a new application for a new Certification. If the property is sold, that new owner must be given a copy of the Certification and approval letter and is thereby responsible for complying with all conditions. For this approval to be valid, you must follow the conditions listed below. The issuance of this Certification shall not exempt the applicant from complying with any and all statues, rules, regulations, or ordinances that may be imposed by other government agencies (local, state and federal) which have jurisdiction, including but not limited to applicable river buffer rules in 15A NCAC 2B .0200, erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCG010000, and any requirements pertaining to wetlands under 15A NCAC 213 .0200, 15A NCAC 2H .0500 and 15A NCAC 2H .1300. Conditions of Certification: 1) The Applicant shall release aquatic base flows from Santeetlah Dam in the magnitude and for the duration described in Table 1. The Applicant shall determine the aquatic base flow for each month by calculating the average daily inflow (ADI) value for the preceding three months. The Applicant shall calculate the ADI using its recorded measures of daily change in reservoir elevation and total discharge (generation flows plus instream flow releases, high flow event releases and flood discharge flows). If the ADI is greater than the historic 25th percentile average flow for that month (Table 2), the Applicant shall release flows according to Tier A. If the ADI is less than or equal to the historic 25th percentile average flow for that month, the Applicant shall release flows according to Tier B. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 4 of 12 Each Friday, the Applicant shall project inflow for the next ten days, which is the planning period. The water requirement for the planning period is the volumetric sum of base flows; high flow event releases, if any; flood discharge flows, if any; Santeetlah Reservoir Operating Curve increase, if any; and generation. The water available for the planning period is the volumetric sum of storage above the Santeetlah Reservoir Operating Curve and the planning period projected inflow. During normal operations, generation will be adjusted to maintain Santeetlah reservoir elevations at or above the Santeetlah Reservoir Operation Curve. Except as necessary to meet other requirements of this Certification, such as aquatic base flows and the Santeetlah Reservoir Operating Curve, generation is not restricted for normal operations. In order to allow state and federal agencies to complete the collection of three full years of baseline data in the Cheoah River below Santeetlah Dam, subject to the determination of the Federal Energy Regulatory Commission (FERC) in issuing a new license for P- 2169, the Applicant shall release aquatic base flows starting September 1, 2005 or starting in the month after the effective date of the License, whichever is later. Table 1. Aquatic base flow releases from Santeetlah Dam in the Cheoah River. Flow Rate (cfs) Month Tier A Tier B January 50 50 February 100 90 March 100 90 April 100 90 May 90 80 June 60 60 July 60 50 August 50 40 September 50 40 October 50 40 November 50 40 December 60 50 Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 5 of 12 Table 2. Historic 25th percentile average flow for Cheoah River Month Threshold Flow (cfs) January 256 February 446 March 484 April 615 May 617 June 526 July 403 August 289 September 208 October 141 November 116 December 148 2) The Applicant shall provide high flow events, which follow a repeating five -year schedule for the term of the License according to Table 3. In order to allow state and federal agencies to collect three full years of baseline data in the Cheoah River below Santeetlah Dam, subject to the determination of FERC in issuing a new license for the project, the Applicant shall provide high flow events starting September 1, 2005 or in the month after the effective date of the License, whichever is later. Table 3. High flow releases for the Cheoah River High Flows Year 1 Year 2 Year 3 Year 4 Year 5 Magnitude (cfs)l Events Days Events FDays Events Days Events Days Events Days Day 1 Day 2 Day 3 January February 1 2 1 2 1 2 1 2 1 2 1000 Var2 March 1 3 1 3 1 3 1 3 1 3 1000 6003 300 April 2 4 3 6 2 4 2 4 3 6 1000 Var4 May 2 4 2 4 3 6 3 6 3 6 1000 Var4 June 1 2 1 2 1 2 1000 Var4 July 1 2 1000 Var4 August 1 1 1000 September 1 1 1 1 1000 October 1 2 1 1 1 2 1 2 1000 Var4 November 1 1 1 1 1 1 1 1 1 1 1000 December Total 1 10 1 19 1 10 1 19 1 10 20 10 19 10 20 112:00 a.m. (midnight) shall be the starting point for determining the appropriate time for initiating and changing flow releases 2600cfs from hour 15 to hour 19, 400 cfs from hour 20 to hour 34; 200 cfs from hour 35 to hour 47; 100 cfs for hour 48 3600 cfs from hour 16 to hour 36; 300 cfs from hour 37 to hour 48 41,000 cfs from hour 8 to hour 14; 850 cfs from hour 15 to hour 16 Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 6 of 12 a. The Applicant shall release high flows via the Tainter gates at Santeetlah Dam. The Applicant shall use the headwater elevation of Santeetlah Reservoir to determine the gate opening necessary to make the required high flow release from Santeetlah Dam. The Applicant shall use the downstream gage at Bearpen Gap during the initial system set up to confirm the required gate positions to make the flow releases; b. The Applicant shall strive to schedule high flow events on weekend days (Saturday and Sunday), but may also schedule high flow events on weekdays. c. The Applicant shall ramp high flow events from the aquatic base flow to 250 cubic feet per second (cfs) then to 1,000 cfs once the downstream gage at Bearpen Gap records flow of 250 cfs. Down ramping is not required. The Applicant shall use the downstream gage at Bearpen Gap during the initial system set up to confirm the required gate positions and gate frequencies in order to ramp the high flow events; d. For 2 -day events in February, the release duration is 4 hours for day 1; releases are targeted to begin at hour 8; e. For 1 -,2- and 3 -day events in March through November, the release duration is 8 hours for the day 1 high flow releases; releases on day 1 are targeted to begin at hour 8; f. For 2 -day events in April through July and October, the release duration is also 8 hours for the day 2 high flow releases; releases on day 2 are scheduled to begin at hour 8. g. For 2 -day events in April through July and October, after the end of the 8 hours of high flow on day 1, the flow will be reduced to 350 cfs until the beginning hour of high flow on day 2; h. The Applicant shall schedule single day high flow events between September and November with a minimum of 10 days between events. i. The Applicant will provide 12 months prior notice to the US Fish and Wildlife Service ( USFWS), the US Forest Service (USFS), the North Carolina Wildlife Resources Commission (NCWRC), the North Carolina Department of Environment and Natural Resources (NCDENR), the Eastern Band of Cherokee Indians (EBCI), and Graham County of the proposed schedule of high flow events. 3) The Applicant shall convene an annual planning meeting in early October of each year which shall include NCDENR, NCWRC, USFS, USFWS and EBCI. If NCDENR, NCWRC, USFS, USFWS and EBCI notify the Applicant prior to the annual meeting that they have determined by consensus that unanticipated circumstances have arisen that indicate that additional aquatic habitat enhancement would result from the reallocation of waste previously committed to the aquatic base flows and /or high flow event schedule as required in Conditions 1 and 2, then the Applicant shall discuss with these entities the reallocation of water for aquatic habitat enhancement purposes within the aquatic base flow regime and /or the high flow event schedule for the year. The Applicant shall cooperate with NCDENR, NCWRC, USFS, USFWS and EBCI in implementing any requested water reallocation with due consideration given to the following factors: a) Any reallocation requests shall be based on periodic (i.e. every several years) re- evaluations of aquatic conditions in the Cheoah River by the above - listed entities; Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 7 of 12 b) Any requested reallocation shall be designed to minimize any additional lost generation (either in lost megawatts and /or lost value) and operating costs; c) Under no circumstances shall water allocated as part of the aquatic base flow regime be utilized for high flow events and vice versa; nor shall water from one year be reallocated to any other calendar year; and d) Any requested reallocation of water must be able to be accommodated with the gate structures in existence at that time. If agreement is reached on reallocation, the Applicant shall take all reasonable and necessary actions to implement the agreement on reallocation. The Applicant shall make a filing with FERC requesting the approval of the requested revised allocation of flows for that calendar year, and upon FERC approval will implement the revised aquatic base flow regime and /or high flow event schedule. 4) Starting in October 2010, in conjunction with the annual planning meeting required in Condition 3, the Applicant will consult with USFWS, USFS, NCWRC, NCDENR, EBCI and Graham County regarding the possibility of providing additional high flow events on a trial basis in addition to the high flow events contemplated in the repeating five year schedule included in Condition 2. If NCDENR notifies the Applicant that they are in full concurrence that biological recovery in the Cheoah River has proceeded to a point that additional high flow events should be scheduled and evaluated on a trial basis, then the Applicant will consult with USFWS, USFS, NCWRC, NCDENR, EBCI and Graham County to determine the specific number, magnitude and timing of such additional trial high flow events. In the event that the Applicant and NCDENR agree on the provision of additional trial high flow events, then no later than 60 days prior to the anticipated start of the additional high flow events, the Applicant shall file for FERC approval a plan of the proposed revisions to the repeating five year schedule of high flow events. In conjunction with the subsequent annual planning meetings, the Applicant will consult with the USFWS, USFS, NCWRC, NCDENR and EBCI in order to determine whether to terminate, continue, or modify the additional trial high flow events, or to recommend to FERC a permanent change in the repeating five year schedule of high flow events. The determination shall be based on USFWS, USFS, NCWRC, NCDENR and El3CI's assessment of the effects of the additional trial high flow events on the Cheoah River aquatic and associated riparian biological communities, on water levels in Santeetlah Reservoir, and other water - quality related issues. The Applicant shall make additional filings, as appropriate, notifying FERC of any additional requested revisions to the repeating five year schedule of high flow events, and upon FERC approval will implement the revised high flow event schedule. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 8 of 12 5) If inflow is not adequate to provide high flow releases and maintain required reservoir levels while maintaining instream flows, then equitable reductions in Santeetlah Reservoir water levels, and high flow releases to the Cheoah River will be made as follows. If the water available for the planning period (as defined in Condition 1) is less than the water requirement with no generation for the scheduling period the following low flow stages will be implemented. The low flow stage will remain in effect until the next planning period when the water requirement is compared to the water available. If the water available is less than the water requirement, the next stage will be implemented. If the water available is greater than the water requirement, the previous stage will be implemented or normal operations if at Stage 1. If the actual inflow is appreciably different than the projected inflow, the Applicant may make adjustments to the low flow stage during the planning period. Stage 1: Reduce high flow duration by 25% (2 hours for each day of the high flow event). Elevation minimum decreased by 0.25 feet below operating curve. Stage 2: Reduce high flow duration by 50% (4 hours for each day of the high flow event). Elevation minimum decreased by 0.50 feet below the operating curve. Stage 3: Reduce high flow duration by 100 %. Elevation minimum decreased by 0.75 feet below the operating curve. Stage 4: Elevation minimum decreased by 1.0 feet below operating curve. If continuous discharge is at Tier A reduce continuous discharge from Tier A to Tier B level. Stage 5: Continue releasing Tier B continuous discharge through spillway gates until elevation reaches bottom of the spillway gates (or valve). Stage 6: Reduce continuous discharge to inflow. Based on actual experience, the Applicant may consult with state and federal agencies to modify the Low Inflow Protocol. If agreement is reached with NCDENR on modifying the protocol, the Applicant shall make a filing with FERC requesting approval of the proposed modification and upon FERC approval will implement the modified protocol. 6) The Applicant shall continue funding the existing US Geological Survey (USGS) Bearpen Gap gage (Station No. 0351706800) on the Cheoah River below Santeetlah Dam. Additionally, the Applicant shall install and maintain a calibrated staff gage, or the equivalent, at the Joyce Kilmer Bridge to allow for the visual confirmation of Cheoah River flows. The Applicant shall also make available the calculated release to the Cheoah River at the Santeetlah Dam on an hourly basis via the Internet. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 9 of 12 7) Prior to the completion of the gate modifications required in Condition 8, the continuous base flow release shall consist of a flow of approximately 50 cfs released through an existing Tainter gate at Santeetlah Dam. Prior to the completion of the Tainter gate automation required in Condition 8, high flow events shall be made with consideration of the following factors: a) Releases from November 1 through March 31 will be scheduled to occur during the regular work week (Monday through Friday) to minimize additional personnel costs associated with releases on weekends using the existing gates and related equipment; releases from April 1 through October 31 will occur on weekends; b) Releases will be initiated using the Year 1 release schedule in Table 3 and subsequent years will use Year 2, Year 3 etc. c) Ramping rates will not apply; and d) The Applicant shall make reasonable effort to provide the high flow events according to the high flow event schedule in Table 3; however, some variation in terms of actual timing of events may occur during this interim period until the gate modifications are complete. 8) To accommodate release of the aquatic base flow and high flow events, the Applicant shall add piggy -back gates to, and automate, either two or three of the existing Tainter gates on Santeetlah Dam within 24 months of the effective date of the new license. The Applicant may deviate from the Santeetlah Operating Curve, the aquatic base and high flow releases during the winter drawdown period to allow for construction in the field of the modified Tainter gates. Within 90 days of the effective date of the new license, the Applicant shall file for approval by FERC a plan and schedule for modifying the Tainter gates. 9) The Applicant shall operate Santeetlah Reservoir according to the following operating rules except when operating under the Low Inflow Protocol (Condition 5): a) From January 1 to March 1, the elevation of Santeetlah Reservoir shall not drop below elevation 1931 ft. b) From March 1 to April 1, the elevation of Santeetlah Reservoir shall not drop below the line between elevation 1931 ft. on March 1 and elevation 1936 ft. on April 1. c) From April 1 to June 23, the elevation of Santeetlah Reservoir shall not drop below elevation 1936 ft. d) From June 23 to July 1, the elevation of Santeetlah Reservoir shall not drop below the line between elevation 1936 ft. on June 23 and elevation 1937 ft. on July 1. e) From July 1 to September 8, the elevation of Santeetlah Reservoir shall not drop below elevation 1937 ft. f) From September 8 to September 16, the elevation of Santeetlah Reservoir shall not drop below the line between elevation 1937 ft. on September 8 and elevation 1936 ft. on September 16. g) From September 16 to November 1, the elevation of Santeetlah Reservoir shall not drop below elevation 1936 ft. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 10 of 12 h) From November 1 to December 1, the elevation of Santeetlah Reservoir shall not drop below the line between elevation 1936 ft. on November 1 and elevation 1931 ft. on December 1. i) From December 1 through December 31, the reservoir elevation shall not drop below elevation 1931 ft. 10) The Applicant shall monitor the elevation of Santeetlah Reservoir on an hourly basis using a water level sensor located upstream of the gatehouse, on the upstream face of the intake. The Applicant shall electronically transmit the water level data recorded by the sensor to the dispatcher's office in Alcoa, Tennessee. The Applicant shall make available Santeetlah Reservoir elevation data on an hourly basis via the Internet. Based on actual experience, the Applicant may consult with interested parties on the actual water level results at Santeetlah from the management practices implemented. The Applicant may implement only minor adjustments of the Santeetlah Reservoir Operating Curve, and only after such consultation and approval by the North Carolina Division of Water Resources — 401 & Buffer Permitting Unit (DWR -401). 11) During emergencies and for planned project maintenance or inspection activities, the Applicant may vary from the reservoir operating curve, vary flows below the required aquatic base flows or lake levels, or vary from the high flow release schedule. Under such conditions, the Applicant shall notify the NCDENR, NCWRC, USFS and USFWS in writing and via telephone according to the following schedule. For planned project maintenance or inspection activities, the Applicant shall notify said agencies no less than 15 days prior to the variance. For unforeseen circumstances required by an operating emergency, the Applicant shall notify the same agencies in writing as soon as practical, but not more than 7 days after the beginning of the event. If requested by DWR -401, the Applicant shall expeditiously consult with any concerned agency to discuss the Applicant's emergency, maintenance and inspection activities, and the Applicant shall give due regard to any agency's recommendations. In lieu of the aforesaid requirements in this paragraph, the Applicant may develop and implement a protocol to manage reservoir levels and flows during emergency, maintenance and inspection activities. If DWR -401 determines that any recurring variances may have an adverse effect on water quality, DWR -401 may require the Applicant to develop and implement a protocol to minimize the impacts of the Applicant's emergency, maintenance and inspection activities on water quality. No protocol will become effective without approval by DWR -401. The Applicant shall take all reasonable and necessary actions to implement any such protocol. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 11 of 12 12) The Applicant shall identify and report in writing existing and proposed consumptive uses to DWR -401 and the DWR. The Applicant shall report the existing or projected (as appropriate) average consumptive withdrawal and maximum capacity for each withdrawal. The Applicant shall report existing consumptive uses to DWR -401 and DWR within 60 days of the acceptance of the License and shall report proposed new or expanded consumptive uses to DWR -401 and DWR within 30 days of receiving a request for the proposed new or expanded withdrawal and before submitting any requests to FERC. 13) The Applicant shall conduct its activities in a manner consistent with State water quality standards (including any requirements resulting from compliance with section 303(d) of the Clean Water Act, 33 U.S.0 § 1313 (d) and any other appropriate requirements of State law and federal law. If DWR -401 determines that such standards or laws are not being met (including the failure to sustain a designated or achieved use or to comply with any new or amended water quality standards or other appropriate requirements of State or Federal law) or that State or Federal law is being violated, or that further conditions are necessary to assure compliance, DWR -401 may reevaluate and modify this Certification to include conditions appropriate to assure compliance with such standards and requirements in accordance with 15A NCAC 21-1.0507(d). Before modifying the Certification, DWR -401 will notify the Applicant and FERC, provide public notice in accordance with 15A NCAC 21-1.0503 and provide opportunity for public hearing in accordance with 15A NCAC 2H .0504. Any new or revised conditions will be provided to the Applicant in writing, will be provided to the US Army Corps of Engineers for reference in any permit issued pursuant to Section 404 of the Federal Water Pollution Control Act, 33 U.S.C. § 1344, for the project, and shall also become conditions of the License. The conditions of this Certification are not modified or superseded by any condition or article of the License. 14) This Certification does not grant or affirm any property right, license or privilege in any waters or any right of use in any waters. This Certification does not authorize any person to interfere with the riparian rights, littoral rights or water use rights of any other person, and this Certification does not create any prescriptive right or any right of priority regarding any usage of water. No person shall interpose this Certification as a defense in any action respecting the determination of riparian or littoral rights or other water use rights. No consumptive user is deemed by virtue of this Certification to possess any prescriptive or other right of priority with respect to any other consumptive user regardless of the quantity of the withdrawal or the date on which the withdrawal was initiated or expanded. This Certification issues on the express understanding of DENR that, pursuant to Federal Power Act section 27, 16 U.S.C. § 821, the License does not establish or determine a proprietary right to any use of water. It establishes the nature of the use to which a proprietary right may be put under the Federal Power Act. 15) This certification grants permission to the director, an authorized representative of the Director, or DENR staff, upon the presentation of proper credentials, to enter the property during normal business hours. Brookfield Smoky Mountain Hydropower, LLC DWR# 03 -0191 V3 Individual Certification #3447 Page 12 of 12 Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and /or civil penalties or other enforcement action. This Certification shall become null and void unless the above conditions are made conditions of the FERC Permit. This Certification shall expire upon expiration of the FERC permit. This the 11th day of March 2014 Karen Higgins, Supervisor 401 & Buffer Permitting Unit 3447