Great Falls Hydroelectric Project (P- 2814) Federal Energy Regulatory Commission (FERC) AIRS & Deficiencies Response Prepared By: Prepared For: Young Energy Services AUGUST 2019 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 DEFICIENCIES Exhibit B 1. Section 4.51 (c) of the Commission’s regulations requires a tailwater rating and a curve showing power plant capability versus head and specifying maximum, normal, and minimum heads. Please provide these curves for the project. Response: The available curves are provided below. Minimum head, corresponding to the crest elevation of the S.U.M. dam is 114.60 feet mean sea level (msl) or 71.37 feet of head. Normal operating head, corresponding to the top of flashboards installed on the S.U.M. dam is 116.85 feet msl or 73.62 feet of head. Maximum head, corresponding to flashboard height at failure (i.e., two feet of overtopping) is 118.85 feet msl or 75.62 feet of head. Additionally, maximum head, corresponding to the plant intake and retaining walls is 124.0 feet msl (80.77 feet of head). As noted on the Spillway Discharge Curve (without flashboards) figure, a critical elevation of 122.0 feet msl (78.77 feet of head) has been identified based on flooding of upstream infrastructure. FIGURE 1: Tailwater Rating Curve 1 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 FIGURE 2: Spillway Discharge Curve (without Flashboards) FIGURE 3: Spillway Discharge Curve (with Flashboards) 2 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 FIGURE 3: Spillway Discharge Curve (with Flashboards) 3 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 FIGURE 4: Plant Discharge Curve 4 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 EXHIBIT F 2. The Exhibit F drawings provided for the Great Falls Hydroelectric Project (Great Falls Project or project.) do not meet the requirements of section 4.51(g) (which refers to section 4.41(g)) of the Commission’s regulations. The drawings must show all major project structures in sufficient detail to provide a full understanding of the project. Thus, please provide a new plan view drawing of the existing powerhouse that shows the three penstocks, turbines/generators, and draft tubes; and the fish passage facility. Response: Figures 5 and 6 present revised drawings prepared for FERC. FIGURES 5 AND 6 ARE BEING FILED SEPARATELY CUI//CEII 5 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 3. Section 4.51(g) (which refers to section 4.41(g)) of the Commission’s regulations requires that an applicant provide a supporting design report (SDR). Therefore, you must provide the following information (filed as Critical Energy Infrastructure Information or CEII) for the Great Falls Project: (1) a stability analysis of the project’s dam structures under all loading conditions, in accordance with the Commission’s Engineering Guidelines, which must include copies of any existing boring logs, geology reports, laboratory test reports, and other references used to justify the foundation shear strength parameters used in the stability analysis; and (2) a justification for the 100-year flood discharge and water surface elevation at the Great Falls Project, since the project must be able to safely pass at least the 100-year flood. Response: A time extension has been requested in order to complete this item. ADDITIONAL INFORMATION REQUESTS Exhibit A 4. Please provide a narrative description of the existing project boundary, including how the boundary is determined (i.e., high water mark, boundary lines, metes and bounds, etc.). In addition, on page A-7 of the final license application (FLA), you propose to remove the Great Falls from the project boundary. So that staff can properly analyze this proposal, please clarify how much acreage you propose to remove from the project boundary and an explanation as to why the land proposed for removal is not needed for the operation and maintenance of the project or for other project purposes, such as recreation, shoreline control, or protection of environmental resources. Response: The existing boundary is a combination of an elevation-based reservoir and a metes and bounds description around the Great Falls area. It is proposed that 7.08 acres be removed from the project. The area to be removed is shaded in Figure 7 and detailed in Figure 8. The land removed from the boundary is to be maintained by the City and the National Park Service (NPS) as protected lands for recreation and other purposes. The land downstream of the S.U.M. Dam is not needed for energy production or maintenance of the project. It is appropriate that through the new license, FERC stipulate the minimum flow over the Dam, as is presently done through License Article 27. Minimum flow(s), and ambient flow above the hydraulic capacity of the powerhouse, pass over the S.U.M. dam and then automatically discharge over the Great Falls. 8 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 Other project purposes, such as recreation and shoreline protection within the reservoir area, will be controlled by FERC and maintained by the Licensee under the new license. The Great Falls will be maintained by the City of Paterson or the NPS. 9 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 FIGURE 7: Proposed Project Boundary Proposed 7.08 Acres to be ± Removed from Project Boundary 114.69Total Area of 1985 Previous Project Boundary in Acres 107.60Total Area of 2019 Current Project Boundary in Acres 7.08Total Area of Great Falls Removed from 1985 Project Boundary Legend Extent Orginal of 1985 Project Boundary Great Falls Area Being Removed From Orginal Project Boundary Extent of 2019 Project Boundary 0 0.5 1 Miles Sources: Esri, HERE, DeLorme, TomTom, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, MapmyIndia, © OpenStreetMap contributors, and the GIS User Community 10 FERC AIRS & Deficiencies Response Great Falls Hydroelectric Project: P-2814 FIGURE 8: Detail of Area to Be Removed from Project Boundary THIS PLAN IS HEREBY APPROVED BY THE PASSAIC COUNTY PLANNING BOARD SUBJECT TO THE RESTRICTIONS, AGREEMENTS AND CONDITIONS SET FORTH BY THE DESCRIPTION OF PROPERTY BLOCK 4601, LOT 1 PASSAIC COUNTY PLANNING BOARD. ALL THAT CERTAIN TRACT OR PARCEL OF LAND SITUATED AND LYING IN THE CITY OF PATERSON, COUNTY OF PASSAIC, STATE OF NEW JERSEY, BEING MORE PARTICULARLY BOUNDED AND DESCRIBED AS FOLLOWS: BEGINNING AT A POINT EVIDENCED BY A REBAR WITH CAP LOCATED AT THE SOUTHEASTERLY END OF THE CURVE CONNECTING THE NORTHEASTERLY LINE OF WAYNE AVENUE (50' WIDE R.O.W.) LEADING TO THE NORTHERLY LINE OF THE MCBRIDE AVENUE EXTENSION (60' WIDE R.O.W.); THENCE, FROM SAID BEGINNING POINT THE FOLLOWING: 1. ON THE NORTHERLY LINE OF MCBRIDE AVENUE EXTENSION ON A CURVE TO SITE THE RIGHT, HAVING AN ARC LENGTH OF 72.23', A RADIUS OF 170.16', A CHORD WE HEREBY CERTIFY THAT WE ARE THE OWNERS OF THE LANDS LENGTH OF 71.69', AND A CHORD BEARING OF NORTH 73° 56' 54" WEST TO A SHOWN HEREON, SHOWN AND DESIGNATED AS BLOCK 4601 POINT OF NON-TANGENCY LOTS 1 AND 2, AND APPROVE THE PLOTTING OF SAME FOR COINCIDENT WITH BLOCK 4601, LOT 1.01 THE FOLLOWING 6 COURSES, FILING WITH CLERK OF THE COUNTY OF PASSAIC. 2. ON A CURVE TO THE LEFT, HAVING AN ARC LENGTH OF 38.78', A RADIUS OF 61.00', A CHORD LENGTH OF 38.13', AND A CHORD BEARING OF NORTH 06° 09' OWNER & APPLICANT : CITY OF PATERSON 25" WEST TO A POINT OF COMPOUND CURVATURE DESCRIPTION OF PROPERTY BLOCK 4601, LOT 2 3. ON A CURVE TO THE LEFT, HAVING AN ARC LENGTH OF 7.23', A RADIUS OF 27.00', A CHORD LENGTH OF 7.21', AND A CHORD BEARING OF NORTH 32° 02' 40" ALL THAT CERTAIN TRACT OR PARCEL OF LAND SITUATED AND LYING IN THE WEST TO A POINT OF REVERSE CURVATURE CITY OF PATERSON, COUNTY OF PASSAIC, STATE OF NEW JERSEY, BEING MORE 4. ON A CURVE TO THE RIGHT, HAVING AN ARC LENGTH OF 5.69', A RADIUS OF PARTICULARLY BOUNDED AND DESCRIBED AS FOLLOWS: 16.00', A CHORD LENGTH OF 5.66', AND A CHORD BEARING OF NORTH 29° 32' 10" WEST TO A POINT OF COMPOUND CURVATURE BEGINNING AT THE CORNER COMMON TO BLOCK 4601, LOTS 2 AND 3 LOCATED ON THE NORTHERLY LINE OF MCBRIDE AVENUE (60' WIDE); THENCE, 5. ON A CURVE TO THE RIGHT, HAVING AN ARC LENGTH OF 50.68', A RADIUS OF FROM SAID BEGINNING POINT THE FOLLOWING: 80.00', A CHORD LENGTH OF 49.83', AND A CHORD BEARING OF NORTH 01° 12' 17" WEST TO A POINT OF TANGENCY 1. SOUTH 40° 40' 12" WEST, A DISTANCE OF 122.83' ON A LINE COINCIDENT WITH THE NORTHERLY LINE OF MCBRIDE AVENUE TO A POINT EVIDENCED BY A 6. NORTH 16° 56' 32" EAST, A DISTANCE OF 14.96' TO A POINT LOCATED AT THE DRILL HOLE SOUTHEASTERLY CORNER OF THE EXISTING FOOTBRIDGE WE HEREBY CERTIFY THAT WE ARE THE OWNERS OF THE LANDS 2. CONTINUING ON THE NORTHERLY LINE OF MCBRIDE AVENUE ON A CURVE LOCATION MAP SHOWN HEREON , SHOWN AND DESIGNATED AS _______________, 7. NORTH 63° 32' 05" WEST, A DISTANCE OF 11.51' ACROSS THE SOUTHERLY TO THE RIGHT, HAVING AN ARC LENGTH OF 230.36', A RADIUS OF 248.00', A ENTRANCE TO THE EXISTING FOOTBRIDGE AND APPROVE THE PLOTTING OF SAME FOR FILING WITH CLERK CHORD LENGTH OF 222.17', AND A CHORD BEARING OF SOUTH 67° 16' 50" AS TAKEN FROM THE USGS QUADRANGLE OF THE COUNTY OF PASSAIC.