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NCS000546_Fact Sheet_20220413DEQ / DEMLR FACT SHEET FOR NPDES INDUSTRIAL INDIVIDUAL STORMWATER PERMIT DEVELOPMENT Basic Information for Permit Issuance and Renewals: Permit Writer / Date Brianna Young 3/18/2022 Permit Number NCS000546 Owner / Facility Name Duke Energy Carolinas, LLC / Allen Steam Station SIC Code / Category 4911 / Electric Services Basin Name / Sub -basin number Catawba / 03-08-34 Receiving Stream / HUC Catawba River / 30501011406 Stream Classification / Stream Segment WS-V; B / l l-(123.5) Is the stream impaired on 303 d list]? Yes — PCB fish tissue advisory Any TMDLs? Yes — TN and TP Any threatened and/or endangered species? None at discharge location Any compliance concerns? See Section 2 below Any permit mods since lastpermit? None since last permit modification issued New expiration date 4/30/2027 Comments on Draft Permit? See Section 6 below Section 1. Facility Activities and Process: The Allen Steam Station is a fossil -fueled, electric generating plant located approximately four miles southeast of Belmont, North Carolina, in Gaston County. The facility has five active coal-fired generating units with a net generating capacity of 1,155 megawatts. Power production originally began at the site in 1957. In addition to the generation units, the station includes a Flue Gas Desulfurization (FGD) facility, a dry ash handling facility, an active ash settling basin, an ash landfill, ash structural fills, a limestone unloading and stockpile operation, a gypsum stacker and storage operation, a wastewater treatment plant, a 115 kV electrical switchyard, a 230 kV electrical switchyard, a station transformer yard, a coal handling operation and storage yard, and various storage and maintenance buildings. The Allen Steam Station property encompasses approximately 953 contiguous acres along the Catawba River in the headwaters of Lake Wylie. The station powerhouse and surrounding plant yard, the coal pile, the switchyards, and associated material and equipment storage areas encompass approximately 65 acres. The FGD facility, including the dry ash handling facility, limestone unloading and stockpile operation, gypsum stacker and storage operation, wastewater treatment plant, and all associated FGD construction laydown areas, and parking areas encompass approximately 56 acres. The remaining property is comprised of active and retired ash settling basins, an ash landfill, ash structural fills, and undeveloped areas. The site contains approximately 5 miles of rail lines and approximately 2 miles of paved roadways. Coal and limestone are shipped to the site via these rail lines. Page 1 of 10 The active ash settling basin has a surface area of approximately 176 acres and a total watershed of approximately 300 acres. Ash is sluiced to the northern section of the basin and discharged into one of three rotating cells. Approximately 64 acres that were previously occupied by a retired ash settling basin are currently the site of an active ash landfill operation. In developed areas of the property, runoff generally flows overland to ditches and catch basins which are connected to a buried network of corrugated metal pipes (CMP). Concrete, cast iron pipes (CIP), and high -density polyethylene (HDPE) pipes also serve as discharge structures. In most areas, this collected runoff discharges into a system of sumps that pump to the ash settling basin. Areas of the site where stormwater is collected by sumps include areas surrounding the powerhouse, the coal pile and coal handling areas, the FGD facility, the dry ash handling facility, the limestone unloading area, the gypsum storage area, the wastewater treatment system (WWTS), and the ash landfill. Stormwater runoff from the station transformer yard and the 115 kV switchyard is routed through oil trap tanks prior to being discharged. Stormwater runoff from all remaining areas of the site is discharged directly to the Catawba River via overland flow or subsurface drain piping. In addition to NPDES wastewater discharge permit NC0004979, the facility also holds 03757T39 (air), NCD043678937 (hazardous wastes), and WQ0000452/36-12 (residual solids / industrial landfill). The facility is subject to federal requirements of 40 CFR §423 - Steam Electric Power Generation. This category is subject to federal NPDES stormwater discharge permit requirements per 40 CFR §122.26(b)(14)(vii). Allen Steam Station maintains an up-to-date Spill Prevention Control and Countermeasure (SPCC) Plan in place in accordance with the U.S. Environmental Protection Agency (US EPA) Oil Pollution Prevention Regulation 40 CFR Part 112. This facility discharges to the Catawba River in the headwaters of Lake Wylie. Lake Wylie is subject to the nutrient management strategy developed for that watershed (Lake Wylie TMDL, 1995). There is also a statewide total maximum daily load (TMDL) for mercury (Hg), approved in September 2012. No specific reductions or Hg limits are required from NPDES stormwater permittees at this time. Duke Energy has developed a decommissioning plan for ash ponds on the site, submitted to the Division of Water Resources (DWR) at the end of 2014. Per additional information provided on April 19, 2021 for the renewal application: In order to facilitate safe closure of the ash basins at Plant Allen, three onsite landfills will be constructed. Of the three landfills, the North Starter Landfill (NSLF) will be the only landfill with potential stormwater impacts known at this stage of planning. Subsequent landfills will be covered under the NPDES Wastewater permit and associated outfalls. The NSLF will be constructed in the SW015 drainage area. All ash contact water will be handled and treated through the NPDES wastewater permit and associated outfalls. Why This Facility is Subject to a Permit: Federal NPDES regulations define stormwater discharge associated with industrial activity in 40 CFR § 122.26 (b)(14) as: "the discharge from any conveyance that is used for collecting and conveying storm water and that is directly related to manufacturing, processing or raw materials storage areas at an industrial plant. The term does not include discharges from facilities or activities excluded from the NPDES program under this part 122. For the categories of industries identified in this section, the term includes, but is not limited to, storm water Page 2 of 10 [sic] discharges from industrial plant yards; immediate access roads and rail lines used or traveled by carriers of raw materials, manufactured products, waste material, or byproducts used or created by the facility; material handling sites; refuse sites; sites used for the application or disposal of process waste waters (as defined at part 401 of this chapter); sites used for the storage and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal; shipping and receiving areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and intermediate and final products; and areas where industrial activity has taken place in the past and significant materials remain and are exposed to storm water [sic]. For the purposes of this paragraph, material handling activities include storage, loading and unloading, transportation, or conveyance of any raw material, intermediate product, final product, byproduct or waste product. The term excludes areas located on plant lands separate from the plant's industrial activities, such as office buildings and accompanying parking lots as long as the drainage from the excluded areas is not mixed with storm water [sic] drained from the above described areas." Section 2. Monitoring Information and Compliance History: • Per letter dated 4/7/2020, SWO18 was in Tier III status for copper and TSS • Per letter dated 1/20/2021, SWO10 was in Tier III status for zinc • November 2015 to January or August 2019, benchmarks exceeded for: o pH: SWO07 (lx), SWO16 (lx) o TSS: SW001 (Ix), SWO03 (Ix), SWO07 (4x), SWO10 (3x), SWO16 (6x), SWO18 (7x), SW020 (5x) o Zinc: SW001 (2x), SWO07 (6x), SWO09 (3x), SWO10 (2x), SWO16 (5x), SW020 (3x) o Copper: SWO10 (4x), SWO13-10 (Ix), SWO16 (6x), SWO18 (3x), SW020 (4x) o Mercury: SW001 (4x), SWO02 (Ix), SWO10 (3x), SWO16 (6x), SWO18 (3x), SW020 (4x) • January 2019 to February 2021, benchmarks exceeded for: o TSS: SWOIO (2x), SWO16 (1x), SWO18 (2x), SW020 (8x) o Zinc: SWO07 (11x), SWO09 (5x), SWO10 (2x), SWO13-10 (1x), SWO13- 13 (2x), SWO13-14 (1x), SWO16 (2x), SW020 (Ix) o Copper: SWO07 (Ix), SWO09 (Ix), SWO10 (5x), SWO16 (3x), SWO18 (2x), SW020 (9x) o Mercury: SW001 (Ix), SWO10 (2x), SWO16 (2x), SWO18 (Ix), SW020 (4x) 303(d) listing: L-(123.5)a KATAWBA RIVER {lake Wylie below elevation 570} North Carolina portion From the upstream side of Paw Creek Arm of lake Wylie to North Carolina -South Carolina State Line Classification V,B Leng[horArea 4,2941Jnits FWAtres Previous AUNumher 0 ment Criteria Status Reiman for Ratiig ParameteroFlnoerest Gtegary Exceeding Criteria ish Consumption Advisory PCB FM Tissue Advisory (Advisory, FC, NC] 0 Page 3 of 10 Section 3. Proposed Monitoring for Stormwater Discharges: The Division considered potential pollutants from past and present industrial activities (coal-fired electric generation, plant decommissioning, and future ash removal) and data was submitted for November 2015 to February 2021. Quantitative sampling included pH, TSS, boron, zinc, antimony, arsenic, beryllium, cadmium, chromium, copper, lead, nickel, selenium, silver, thallium, and mercury. Unlike most stormwater permits in its program, the Division is proposing to maintain a permit structure with outfall-specific monitoring for discharges. Parameters are based on potential pollutants in the drainage area, sampling results, and in some cases, dependent upon future activities (e.g., ash removal through the drainage area). Below is a table of the proposed monitoring for each outfall at the Allen Steam Station site. All outfalls ultimately discharge to the Catawba River. Outfalls SW001, SW001A, SW002, SW003, SW007, SW008, SW009, SWO10, SW013, SW015, SW016, and SW020 Dra ning Access Road Areas and Rail Lines Total Suspended Solids Quarterly monitoring (TSS) BASIS: Potential pollutant from drainage area and BMP effectiveness indicator. These outfalls may be impacted by a Phase I Coal Ash Excavation Plan (hauling ash from Ash Stack). pH Quarterly monitoring BASIS: Pollutant indicator and important to interpreting toxicity potential of metals. These outfalls may be impacted by a Phase I Coal Ash Excavation Plan (hauling ash from Ash Stack). Total Rainfall Quarterly monitoring BASIS: Pollutant indicator. Non -Polar Oil &Grease Quarterly monitoring BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM targets petroleum -based O&G. Monthly Oil Usage Quarterly monitoring BASIS: Potential pollutant from drainage area. Priority Pollutant Metals Quarterly monitoring Ag, As, Be, Cd, Cr, Cu, BASIS: Coal combustion waste (CCW) constituents. Hg, Ni, Pb, Sb, Se, Tl, Monitoring is quarterly because this outfall will be and Zn impacted by Phase I of the Coal Ash Excavation Plan. Boron Quarterly monitoring BASIS: Coal combustion waste (CCW) constituent / coal tracer. These outfalls may be impacted by a Phase I Coal Ash Excavation Plan(hauling ash from Ash Stack). Page 4 of 10 • Outfalls SW001 and SWOOIA (Drainage Area 1) includes approximately 2,000 linear feet of rail lines and approximately 345 feet of gravel road. • Outfall SWO02 includes upland wooded areas, a 2.5-acre graveled FGD facility construction laydown yard, the south embankment of the lined retention basin, and approximately 1,000 feet of paved road. • Outfall SWO03 (Drainage Area 3) includes approximately 1,500 linear feet of rail lines. • Outfall SWO07 (Drainage Area 7) includes approximately 1,500 linear feet of rail lines, 400 linear feet of gravel roadway, and 400 linear feet of limestone conveyor. • Outfall SWO08 (Drainage Area 8) includes approximately 2,400 linear feet of rail lines, 1000 linear feet of paved road, and 400 linear feet of limestone conveyor. • Outfall SWO09 (Drainage Area 9) includes approximately 940 linear feet of rail lines, station debris, and clam filter. • Outfall SWO10 (Drainage Area 10) includes approximately 1,280 linear feet of rail lines. • Outfall SWO13 (Drainage Area 13; 9 outfalls, one every 200 feet) includes approximately 2,400 linear feet of gravel road and 7,500 linear feet of rail lines. Located in front of the coal combustion products (CCP) landfill. • Outfall SWO15 (Drainage Area 15) includes a large soil borrow area, two ash structure fill areas, and approximately one mile of gravel and dirt roads. Approximately 2,000 linear feet of gravel road within the drainage area is used by ash haul trucks. • Outfall SWO16 (Drainage Area 16) includes approximately 1,700 linear feet of paved access road, 1,000 linear feet of a paved ash haul road, 700 linear feet of paved road, 1,000 linear feet of dirt roads, and a gravel laydown and equipment parking area. • Outfall SW020 (Drainage Area 20) includes approximately 1,300 linear feet of paved access road, an earth spoil area, and a gravel construction parking and storage area. Outfall SWO18 Dra n ing powerhouse and switchyard areas Total Suspended Solids Quarterly monitoring (TSS) BASIS: Potential pollutant from drainage area and BMP effectiveness indicator. pH Quarterly monitoring BASIS: Pollutant indicator and important to interpreting toxicity potential of metals. Total Rainfall Quarterly monitoring BASIS: Pollutant indicator. Non -Polar Oil &Grease Quarterly monitoring Page 5 of 10 BASIS: Potential pollutant from lubricants; Method 1664 SGT-HEM targets petroleum -based O&G. Monthly Oil Usage Quarterly monitoring BASIS: Potential pollutant from drainage area. Priority Pollutant Metals Quarterly monitoring Ag, As, Be, Cd, Cr, Cu, BASIS: Coal combustion waste (CCW) constituents. Hg, Ni, Pb, Sb, Se, Tl, Monitoring is quarterly because this outfall will be impacted and Zn by Phase I of the Coal Ash Excavation Plan. Boron Quarterly monitoring BASIS: Coal combustion waste (CCW) constituent / coal tracer. These outfalls may be impacted by a Phase I Coal Ash Excavation Plan (hauling ash from Ash Stack). • Outfall SWO18 (Drainage Area 18) includes approximately 2,000 linear feet of paved access road, 250 linear feet of a paved ash haul road, 150 linear feet of ash sluice piping, and a gravel switchyard. New per permit application: earth spoil area and gravel parking areas during FGD facility construction. Outfall SWO05 (Drainage Area 5) is primarily comprised of a gravel laydown yard and vegetated slopes located west and upland of the limestone unloading area. The gravel laydown yard comprises approximately 3 acres. The drainage area also includes approximately 500 linear feet of paved roadway. Drainage Area 5 sheet flows and is not subject to an NPDES permit. Outfall SWO14 (Drainage Area 14) now goes to a holding basin that discharges through an NPDES wastewater permit. Outfall SWO19 (Drainage Area 19) includes undeveloped and active soil borrow areas. All runoff is directed to a sedimentation basin located northeast of the borrow area. SWO19 does not include industrial activities and therefore no monitoring required. Outfall SW004, Outfall SW006, Outfall SW017, SWO19 Outfalls SWO04 (Drainage Area 4), SWO06 (Drainage Area 6), SW017 (Drainage Area 17), and SWO19 (Drainage Area 19) do not include industrial activities. Any modifications to Outfalls SW004, SW006, SW017, and SWO19 that result in a potential stormwater discharge associated with past or present industrial activities will require a modification to this permit. Stormwater Benchmarks and Tiered Response: Rather than limits, North Carolina NPDES Stormwater permits contain benchmark concentrations. Stormwater benchmarks are numerical action levels for stormwater monitoring. Benchmarks are not effluent limits, and benchmark exceedances are not permit violations. Benchmarks provide facilities a tool for assessing the significance of pollutants in stormwater discharges and the effectiveness of best management practices (BMPs). Benchmark concentrations are Page 6 of 10 intended as guidelines for the facility's development and implementation of the Stormwater Pollution Prevention Plan (SPPP). Benchmark exceedances require the permittee to increase monitoring, increase management actions, increase record keeping, and/or install stormwater BMPs in a tiered program. The permit establishes a tiered approach to specify actions the permittee must take in response to analytical results above benchmark concentrations (Part II, Section B., Table 10). The tiered structure of the permit provides the permittee and DEMLR wide flexibility to address issues that may arise with one or more parameters and/or outfalls. Metals benchmarks are calculated to mimic acute water quality standards and with the guidance of DWR. NC DWR follows established federal procedures for calculating acute standards when developing the benchmarks. Just like the acute standards, metals benchmarks normally reflect one half of the calculated Final Acute Value (the "1/2 FAV"). In most cases, translation into total recoverable values is based on an assumed hardness of 25 mg/L and a total suspended solids (TSS) concentration of 10 mg/L. Acute standards protect aquatic life from negative impacts of short-term exposure to higher levels of chemicals where the discharge enters a waterbody. The Stormwater Permitting Program applies this approach because of the ephemeral nature of rainfall events. The Division may evaluate results to determine if a smaller suite of parameters for some outfalls is adequate to characterize potential pollution or BMP effectiveness. For example, one or more metals or other parameters may serve as an adequate tracer for the presence of ash pollution during disturbance or ash removal in specific drainage areas at this site. For parameters that do not have a stormwater benchmark, the Division may develop a benchmark value if appropriate toxicity data become available or if rising trends in concentrations suggest a persistent source. A summary of the benchmarks in the draft permit, and their basis, is below: Parameter Benchmark Basis Antimony Total 340 /L ECOTOX database, 1/2 FAV Arsenic Total 340 /L Acute Aquatic Criterion, 1/2 FAV Beryllium Total 65 /L Acute Aquatic Criterion, 1/2 FAV Boron 34,000 µg/L CCW/Coal constituent; Narrative National Recommended Water Quality Criterion Cadmium Total 3 µg/L Acute Aquatic Criterion, 1/2 FAV 1/2 FAV, based on (Cr III + Cr VI) acute Chromium (Total) 905 µg/L thresholds and assumption that industrial activities here are not a source of hexavalent chromium Copper Total 10 /L Acute Aquatic Criterion, 1/2 FAV Lead Total 75 /L Acute Aquatic Criterion, 1/2 FAV Mercury (Total) 12 ng/L CCW/Coal Constituent; Hg influenced by regional transport and wet deposition Nickel Total 335 /L Acute Aquatic Criterion, 1/2 FAV Selenium is a bio-accumulative metal; Selenium (Total) 5 µg/L Recommend using the current chronic 02B standards for freshwater 5 /L Page 7 of 10 Silver Total 0.3 /L Acute Aquatic Criterion, '/2 FAV Thallium (Total) 2,000 µg/L CCW/Coal constituent; National Recommended Human Health Criterion Zinc Total 126 /L Acute Aquatic Criterion, '/2 FAV Total Suspended 100 mg/L National Urban Runoff Program (NURP) Study, Solids (TSS) 1983 H 6 s.u. — 9 s.u. NC Water Quality Standard (Range) Non -Polar Oil & Review of other state's daily maximum Grease, EPA 15 mg/L benchmark concentration for this more targeted Method 1664 O&G; NC WQS that does not allow oil sheen in SGT-HEM waters Stormwater Pollution Prevention Plan: The proposed permit conditions reflect the EPA and NC's pollution prevention approach to stormwater permitting. The Division's maintains that implementation of Best Management Practices (BMPs) and traditional stormwater management practices that control the source of pollutants meets the definition of Best Available Technology (BAT) and Best Conventional Pollutant Control Technology (BCT). The permit conditions are not numeric effluent limitations but are designed to be flexible requirements for implementing site -specific plans to minimize and control pollutants in stormwater discharges associated with the industrial activity. Title 40 Code of Federal Regulations (CFR) § 122.44(k)(2) authorizes the use of BMPs in lieu of numeric effluent limitations in NPDES permits when the agency finds numeric effluent limitations to be infeasible. The agency may also impose BMP requirements which are "reasonably necessary" to carry out the purposes of the Act under the authority of 40 CFR 122.44(k)(3). The conditions proposed in this draft permit are included under the authority of both of these regulatory provisions. In essence, the pollution prevention and BMP requirements operate as limitations on effluent discharges that reflect the application of BAT/BCT. Mercury Monitoring Requirements: The proposed permit requires mercury to be measured in stormwater samples by EPA Method 1631E, which can detect levels as low as 0.5 ng/l. This requirement is consistent with recent federal rule -making that requires NPDES permittees to monitor discharges with sufficiently sensitive test procedures approved under 40 CFR § 136. Modifications to 40 CFR § 122.44(i) require a method that has a minimum level (ML) at or below the effluent limit (not applicable here), or the lowest minimum level (ML) of EPA approved analytical methods for the measured parameter. Based on results, Method 1631E will be required to quantify levels in these discharges. NC DEMLR understands that this method is more costly and requires a more intensive sampling protocol than most other parameters. Other Proposed Requirements: • It is standard for Stormwater Pollution Prevention Plan (SWPPP) requirements to include an annual certification that stormwater outfalls have been evaluated for the presence of non-stormwater discharges, and if any are identified, how those discharges are permitted or otherwise authorized. • Requirement to submit a request for permit modification if the facility identifies or creates any new outfalls, removes outfalls, or alters any drainage area that Page 8 of 10 changes potential pollutants. This site may trigger this requirement during demolition or ash removal activities. • Proposed federal regulations will require electronic submittal of all discharge monitoring reports (DMRs). If a state does not establish a system to receive such submittals, then permittees must submit DMRs electronically to the EPA. Permit provisions addressing this requirement are included in Part I, Section E. (Submittal of Discharge Monitoring Reports). • Quarterly QualitativeNisual Monitoring to assure regular observation of outfalls throughout year. Section 4. Changes from previous permit to draft: • Monitoring increased from semi-annually to quarterly for all parameters (qualitative and quantitative) • "No discharge" clarifications made • 'No requirement added • Boilerplate language moved into body of the permit; boilerplate no longer attached • Monitoring for total hardness added for all outfalls as monitoring for hardness dependent metals is required • Benchmark values added for Boron and Mercury • Benchmarks updated for parameters per guidance from DWR Standards group on stormwater benchmarks Section 5. Changes from draft to final: • Table 2 removed and SW018 moved to Table 1 per permittee comments • Description of SWO15 updated in Section D to include the CCR landfill (per permittee comments) Section 6. Discussions with the Facility and Regional Office: • Initial contact with facility made: Done by Jim Farkas • Initial contact with Mooresville Regional Office: 10/6/2021 • Draft sent to CO peer review: 11/5/2021 • Draft sent to Mooresville Regional Office: 12/28/2021 • Final permit sent for supervisor signature: Section 7. Comments received on draft permit: Elizabeth Glenn, Duke (via email 1/28/2022): • Cover Letter: Change Paul Draovitch to Jessica Bednarcik o DEQ response: The contact information has been updated. Page 9 of 10 • Page 10 of 39, B-13: Requesting Representative Outfall Status (ROS) for the Outfall Group SW013 (SW013-7 to SW013-15) via SW013-13. As demonstrated from the 2015 to 2022 analytical data, SW013-13 is the only outfall with consistent discharge. This outfall offers a representative example of discharge from the SW013 group as all outfalls share a common drainage environment consisting of track drains. o DEQ response: To request representative outfall status (ROS), please fill out the form on our website (available at https:Hdeq.nc.gov/media/9720/download) and submit as directed. This request cannot be handled during the permit renewal process. • Page 12 of 39, D-1 (b): Clarification on what equipment is included in the motor oil and hydraulic oil for the facility. The Allen Steam Station has a multitude of oil -filled equipment contained in the powerhouse. If this equipment were to leak and enter a drain, it would be captured in the Lined Retention Basin (LRB) system tracked via the NPDES Wastewater permit. Vehicle maintenance is not routinely performed onsite. o DEQ response: Tracking should be kept for any equipment that utilizes motor oil and hydraulic oil. • Page 12 of 39, D-1 (e): We request Tier Relief or Reset for the following outfalls: 001, 007, 009, 010, 016, 018 and 020 based on upgrades, analytical data trends, and land use changes. o DEQ response: Tier relief is done through a separate process and not handled with permit renewal. Please submit this request to the Mooresville Regional Office in a separate correspondence. • Page 13 of 39, Table 1: Clarification on the NCOIL parameter as to if the 55 gallon usage is per drainage area or for the entire facility. As stated in comment 3., the majority of oil at Allen Steam Station is contained within the powerhouse and does not pose a stormwater risk. o DEQ response: The reference to 55-gallon usage is meant for the entire site, not just within a specific drainage area. • Page 13 of 39, Table 1: Removal of the oil and grease parameter requirement for Outfalls SW001, SWOIA, SW002, SW003, and SW020 due to no oil containing equipment operation in these drainage areas. o DEQ response: Monitoring for non -polar oil and grease is a standard requirement of all outfalls in NPDES stormwater permits. Therefore, monitoring will remain in the permit for these outfalls. • Page 14 of 39, Outfall Descriptions: SW015 should include a lined CCR landfill o DEQ response: The description of the outfall has been updated in the permit. • Page 15 of 39, Table 2: Request that this table be combined with Table 1 to prevent confusion. o DEQ response: As monitoring requirements in both tables are the same, Table I and Table 2 can be combined. Page 10 of 10 Young, Brianna A From: Bednarcik, Jessica L <Jessica.Bednarcik@duke-energy.com> Sent: Wednesday, April 13, 2022 12:13 PM To: Young, Brianna A; Glenn, Elizabeth Cc: Kay, Lily C; Khan, Zahid Subject: RE: [EXTERNAL] Issued NPDES permit NCS000546 Allen Steam Station CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Confirmed receipt. From: Young, Brianna A <Brianna.Young@ncdenr.gov> Sent: Wednesday, April 13, 2022 11:02 AM To: Bednarcik, Jessica L <Jessica.Bed narcik@duke-energy.com>; Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Cc: Kay, Lily C <lily.kay@ncdenr.gov>; Khan, Zahid <zahid.khan@ncdenr.gov> Subject: RE: [EXTERNAL] Issued NPDES permit NCS000546 Allen Steam Station Good morning, Thank you for the prompt response. Attached is the issued NPDES permit for NCS000546 Allen Steam Station. Please respond to this email confirming that you received the attached document, were able to open and view the document, and have saved/printed a copy for your records. Thank you, Brianna Young, MS (she/her/hers) Industrial Individual Permits Coordinator Stormwater Program NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR) Brianna.Young@ncdenr.gov (e-mail preferred) 919-707-3647 (office) Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612 Physical address: 512 North Salisbury Street, Raleigh, NC 27604 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. From: Bednarcik, Jessica L <Jessica.Bed narcik@duke-energy.com> Sent: Wednesday, April 13, 2022 11:00 AM To: Young, Brianna A <Brianna.Young@ncdenr.gov>; Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Cc: Kay, Lily C <lily.kay@ncdenr.gov>; Khan, Zahid <zahid.khan@ncdenr.gov> Subject: RE: [EXTERNAL] Issued NPDES permit NCS000546 Allen Steam Station CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Electronic transmission is good for me. Thank you, Jessica Jessica L Bednarcik, PE, PMP I Duke Energy SVP EHS & CCP 400 South Tryon I Mail Code ST06K I Charlotte, NC 28202 Office: 704.382.8768 1 Mobile: 704.907.8628 [ Jessica.Bednarcik@duke-energy.com From: Young, Brianna A <Brianna.Young@ncdenr.gov> Sent: Wednesday, April 13, 2022 10:49 AM To: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com>; Bednarcik, Jessica L <Jessica.Bednarcik@duke-energy.com> Cc: Kay, Lily C <lily.kay@ncdenr.Rov>; Khan, Zahid <zahid.khan@ncdenr.gov> Subject: [EXTERNAL] Issued NPDES permit NCS000546 Allen Steam Station Good morning, In order to provide more convenience, control, and security to our permittees and assist them in processing their transactions, the Division of Water Resources is currently transitioning towards electronic correspondence. This will hopefully provide more efficient service to our permittees and other partners and will allow us to more effectively process and track documents. We are writing to ask you for your approval of the transmittal of documents related to your permitting and related activities with the Division in an electronic format. Documents will be emailed to the appropriate contact person(s) in your organization in a PDF format. Please respond to me through email with verification that transmittal of your documents in an electronic manner is acceptable to you. If you have any questions, please feel free to contact me. Thank you, Brianna Young, MS (she/her/hers) Industrial Individual Permits Coordinator Stormwater Program NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR) Brianna.Young@ncdenr.gov (e-mail preferred) 919-707-3647 (office) Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612 Physical address: 512 North Salisbury Street, Raleigh, NC 27604 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. LOCAU10 StarNews i The Dispatch I Times -News PO Box 631245 Cincinnati, OH 45263-1245 Sun Journal I The Daily News I The Star The Free Press i Gaston Gazette PROOF OF PUBLICATION NC DEQ Dept Energy MINERAL & LAND RESOURCES NC Deq Dept Energy 1612 Mail Service CTR Raleigh NC 27699-1600 STATE OF NORTH CAROLINA, COUNTY OF GASTON The Gaston Gazette, a newspaper printed and published in the city of Gastonia, and of general circulation in the County of Gaston, State of North Carolina, and personal knowledge of the facts herein state and that the notice hereto annexed was Published in said newspapers in the issue dated: 01 /26/2022 and that the fees charged are legal. Sworn to and subscribed before on 01/26/2022 my commision expires Publication Cost: $117.30 Order No: 6827720 Customer No: 645103 PO #: NCS000546 THIS IS NOT AN INVOICE! Please do not ive dui. %orm /or pgrmeni r eminance. FwELLY HORA ary Public of Wlsconsln # of Copies: NC DIV. OF ENERGY, MINERAL AND LAND RESOURCES' INTENT TO ISSUE THE FOLLOWING STORMWATER DISCHARGE PERMIT Public comment or obiection to the draft permit is invited. Submit written comments to DEMLR at the address below. All comments received through February 28, 2022 will be considered in the final determination regarding permit issuance and permit provisions. Application: The following facility has applied for renewal of their NPDES permit to discharge stormwater from their loca- tion in Gaston County. • Duke Energy Carolinas, LLC, 235 Plant Allen Road, Belmont, NC. The facility discharges to the Catawba River, a class WS-V; B waterbody in the Catawba River Basin. Permit No. NCS000546. Stormwater Program Contact: Brianno Young 919-707-3647 Brianna.Young@ncdenr.gov Copies of the draft permits are available at: https:Hdeq.nc.gov/about/divis ions/energy-m i nera I -and - I a nd-resources/storm wa- ter/stormwater- prog ra m/stormwater-p u b I i c- notices. Additional permit documents are available for the reproduction cost at: DEMLR Stormwater Program 512 N. Salisbury Street, Raleigh, NC 27604 1612 Mail Service Center, Raleigh, NC 27699-1612 Jan. 26, 2022 #6827720 Page 1 of 1 Young, Brianna A From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Thursday, April 8, 2021 2:00 PM To: Farkas, Jim J Subject: [External] Allen Steam Station Permit Renewal Update - NCS000546 Attachments: Allen ISW Renewal Update Cover Letter SIGNED 040721.pdf; Narrative of Site Activities.docx; Allen_SDO_Summary.xlsx; 2021-02 Allen Analytical Summary ISW.xlsb CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Jim — Please accept the attached information for the Allen Steam Station Permit Renewal. As requested, this information covers 2019 to present. Hardcopies will be sent to your office next week. Let me know if you have any questions. Thank you, J. Elizabeth Glenn Permitting & Compliance Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 Allen Steam Station 253 Plant Allen Road Belmont, NC 28012 April 7, 2021 North Carolina Division of Water Resources DEMLR Stormwater Program Attn: Jim Farkas 1612 Mail Service Center Raleigh, NC 27699-1612 Subject: Duke Energy Carolinas, LLC Allen Steam Station NPDES Stormwater Permit NCS000546 Renewal Application Update Dear Mr. Farkas: Duke Energy Carolinas, LLC. requests the following updated information be included with the October 29, 2019 renewal application package: 1. Summary of Analytical Monitoring results for the time period 2019 to Q1 2021. 2. Summary of Visual Monitoring results for the time period 2019 to Q1 2021. 3. Narrative of site activities If you have any questions, please contact Elizabeth Glenn (980) 373-0530 or Elizabeth.glenn@duke- energy.com. I certifi,, underpenalty of law, that this docttntent and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualifiedpersonne/properly gather and evaluate the information submitted. Based on my inquiry of the person orpersons ivho manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aivare that there are significant penalties for submitting false information, including the possibility of fines and imprisonment far knowing violations. SiLwerely, ick R. Roper General Manager III Allen Steam Station Enclosures Narrative of Site Activities In order to facilitate safe closure of the ash basins at Plant Allen, three onsite landfills will be constructed. Of the three landfills, the North Starter Landfill (NSLF) will be the only landfill with potential stormwater impacts known at this stage of planning. Subsequent landfills will be covered under the NPDES Wastewater permit and associated outfalls. The NSLF will be constructed in the SW015 drainage area. All ash contact water will be handled and treated through the NPDES Wastewater permit and associated outfalls. 4f DUKE ENEI�, Facility Name: Allen Steam Station Individual NPDES Permit No. NCS000546 County: Gaston Phone Number: 704.829.2350 Site Contact: Randy Gantt Outfall Number: SW020 Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 Clear None 1 1 1 1 None I None None 0.51 3/2019 No Qualifying Event 4/5/2019 Lt. Tan None 1 1 2 1 None I None None 0.92 5/2019 No Qualifying Event 6/2019 No Qualifying Event 7/2019 No Qualifying Event 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Orange None 3 3 3 None None None 0.59 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Orange None 4 2 4 None None None 0.91 2/6/2020 Orange None 3 1 3 None None None 2.33 3/3/2020 Dark Orange None 4 4 4 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Faint tan None 2 1 1 None None None 1.4 5/27/2020 Lt. Brown None 2 1 2 None None None 1.46 6/16/2020 Tan None 3 1 2 None None None 0.51 7/2020 No Qualifying Event 8/21/2020 Orange None 4 1 2 None None None 0.43 9/17/2020 Tan None 3 1 2 None None None 1.86 10/2020 No Qualifying Event 11/2020 Slightly Orange None 2 1 1 None None None 0.46 12/14/2020 Brown None 4 2 2 None None None 0.43 1/25/2020 No Flow 0.31 2/12/2021 Faint tan None 2 1 1 None I None None 0.43 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case Allen Storm Water Outfall SWO01 Parameter 61, °\ �''�� �a\ �ti a oa �a boa°a /\°` �a� ova �a� ova �a\ ova \� o,0a Al \� e\\P\1 K 9 �eotcments/NotesPeCom Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 12"CMP to Catawba River (Lake Wylie) - Draining gravel road, woodland and RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/2019 No Flow No Flow 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/2019 No Flow No Flow 12/2019 No Flow No Flow 1/2020 No Flow No Flow 2/2020 No Flow No Flow 3/3/2020 0.83 7.3 12 <0.05 0.103 <0.001 <0.001 <0.001 <0.001 0.00407 0.00530 0.00260 0.00114 <0.001 <0.0002 <0.0002 15.0 4/2020 No Flow No Flow 5/2020 No Flow No Flow 6/2020 No Flow No Flow 7/2020 No Flow No Flow 8/2020 No Flow No Flow 9/2020 No Flow No Flow 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO01 A ,�a e\,\o a\,�o �\/\ \/\° o�a� �� e\,\o ova\ ��\ o� �G\ �� ��� `� mot\\� ��� \QUO �� �tA Parameter I ° �X\ �a� ,�o Q>° '�>� Pc P� Q>e C,a Cr Cr° �,� �` �e �� �r �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 12"CMP to Catawba River Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 O.OS6 0.0003 NE NE (Lake Wylie) - Draining gravel road, woodland and RR. Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow 2H-2019 No Flow 1H-2020 No Flow 2H-2020 No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO02 /\oOa X\e °� ova\ \�°� Ga \moo ova\ a\ �3\ /\o �a� /\o �o�a\ Ka�\ ¢oa o`a � \� fie\ \�' \� o� fie\ �\ Parameter o,�a � Q o,�a ono 0 \moo 1, ��� P eye P eta aac� L rto L oQ� L eaa �. 5 5 Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining paved road and laydown area. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow 21-1-2019 No Flow 1/24/2020 0.91 6.9 11 <0.05 0.039 <0.001 0.00159 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.65 9/17/2020 1 1.86 7.6 72 <0.05 0.038 1 <0.001 0.00117 <0.001 <0.001 0.00288 0.00513 1 0.00157 <0.001 <0.001 <0.0002 <0.0002 4.83 12/14/2020 1 0.43 7.6 4.7 <0.05 0.055 1 <0.001 <0.001 <0.001 <0.001 <0.001 0.00526 1 <0.001 0.00117 <0.001 <0.0002 <0.0002 2.65 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO03 \'\°� ova\°� \'\o \,\° va\ X\ o a� �a�°tea �\ a \o`a\° o` '\°`a fie\ �° \ 40 lip 4>N `a `a to �° tJ � r � a ° � � a e Parameter Comments Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 18"CPP to Catawba River (Lake Wylie) - Draining RR lines. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.7 29 <0.05 1 0.017 1 <0.001 1 0.00199 1 <0.001 I <0.001 1 0.00114 1 0.00544 1 <0.001 1 0.00110 1 <0.001 1 <0.0002 1 <0.0002 1 10.4 3/16/2020 7.9 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO05 \'`°� ova\ `°� \'<°� �,`o ova\ a\ tea\°�a tea\ `°°�a 4>N ��ocJ `\P ��\ ��\ \�c� \C'�ja\� tJ � � � a Parameter r a o � e Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 177MP to Catawba River (Lake Wylie) - Draining gravel laydown yard, paved roadway and vegetated slopes. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1/24/2020 0.91 6.8 43 1 0.292 1 0.027 1 <0.001 1 0.00192 1 <0.001 I <0.001 1 0.0031 1 0.00610 1 <0.001 I <0.001 1 0.00248 1 <0.0002 1 <0.0002 1 4.59 9/17/2020 1.86 7.6 3.1 1 <0.05 1 0.067 1 <0.001 I <0.001 I <0.001 I <0.001 I <0.001 1 0.00380 1 <0.001 I <0.001 1 0.00120 1 <0.0002 1 <0.0002 2.37 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO07 ,`°� AI°� \`° °�a� a\ tea\°�a °� �° �° Parameter°tea Q�°tea°1>p��\ p��e ��Laa Cry C.°� yea �`° �,e� �,�� bra �`e Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 18"CMP to Catawba River (Lake Wylie) - Draining gravel roadway, Ls conveyor and RR lines. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.0 <5 <0.05 0.153 <0.001 <0.001 <0.001 <0.001 <0.001 0.00750 <0.001 0.00103 0.00106 <0.0002 <0.0002 3.53 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 8.3 97 <0.05 0.216 <0.001 <0.001 <0.001 <0.001 <0.001 0.00273 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.90 12/2019 No Flow No Flow 1/24/2020 0.91 6.5 20 <0.05 0.315 <0.001 <0.001 <0.001 <0.001 <0.001 0.00134 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.25 2/2020 No Flow No Flow 3/3/2020 0.83 6.6 84 <0.05 0.132 <0.001 <0.001 <0.001 <0.001 0.00104 0.00220 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.61avg 4/2020 No Flow No Flow 5/27/2020 1.46 6.8 85 <0.05 1.03 <0.001 1 0.00629 1 <0.001 <0.001 0.00686 0.0141 1 0.00496 1 0.00630 1 <0.001 <0.0002 1 0.000337 <2.00 6/16/2020 0.51 6.3 13 <0.05 0.267 <0.001 0.00111 <0.001 <0.001 <0.001 0.0.103 <0.001 0.00103 <0.001 <0.0002 <0.0002 2.12 7/2020 No Flow No Flow 8/31/2020 0.27 7.2 29 <0.05 0.055 <0.001 <0.001 <0.001 <0.001 <0.001 0.00187 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.06 9/17/2020 1.86 7.6 42 <0.05 0.168 <0.001 0.00103 <0.001 <0.001 <0.001 0.00281 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.18 10/2020 No Flow No Flow 11/11/2020 0.46 8.3 68 <0.05 0.193 <0.001 0.00155 <0.001 <0.001 0.00110 0.00271 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.30 12/14/2020 0.43 7.6 15 <0.05 0.283 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.34 1/25/2021 0.31 7.2 9.3 <0.05 0.245 <0.001 <0.001 <0.001 <0.001 <0.001 0.00123 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.880 2/2/2021 0.40 7.7 11 <0.05 0.386 <0.001 <0.001 <0.001 <0.001 <0.001 0.00138 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.48 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO08 /\°tea \\° /\° �\ t° .�� Parameter �o` �� �o` mot V�� Pam` Pt �e La Cr COP" �e �� �� �,� �`° �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining gravel Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA roadway & Ls conveyor. Date 6/7/19 1.06 8.4 25 <0.05 0.062 <0.001 0.00140 <0.001 <0.001 0.00104 0.00975 <0.001 0.00182 0.00160 <0.0002 <0.0002 4.39 2H-2019 No Flow No Flow 1/24/2020 0.91 6.9 <2.6 <0.05 0.021 <0.001 <0.001 <0.001 <0.001 <0.001 0.00224 <0.001 <0.001 0.00128 <0.0002 <0.0002 2.00 8/31/2020 0.27 7.2 17 <0.05 0.035 <0.001 0.00162 <0.001 <0.001 0.00138 0.00710 0.00133 0.00150 0.00213 <0.0002 <0.0002 3.62 11/11/2020 0.46 8.5 <2.5 <0.05 0.011 <0.001 <0.001 <0.001 <0.001 <0.001 0.00423 <0.001 <0.001 0.00167 <0.0002 <0.0002 1.77 12/14/2020 0.43 7.7 6.6 <0.05 0.022 <0.001 <0.001 <0.001 <0.001 0.00103 0.00384 <0.001 0.00122 <0.001 <0.0002 <0.0002 2.83 1/25/21 0.31 7.3 12.7 <0.05 0.026 <0.001 <0.001 <0.001 <0.001 I <0.001 1 0.00377 <0.001 0.00133 0.00121 <0.0002 <0.0002 2.26 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO09 °` /\°� �° �a� ova �a\ ova ° tea\ ova\ ����\ Ga\ �L\ ��a� �0 �� 0 �o �� ` \eta �� `p1�° \I� e o� ooi° ��'`� c�a e� ar�° o�� aaa �� ��e ��e ram et Parameter Q Q P L L L �, 5 �; �` Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Concrete ditch to Catawba River (Lake Wylie) - Draining RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date Units inches mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 01/03/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.1 1 <5 <0.05 0.173 <0.001 0.00163 <0.001 I <0.001 I <0.001 0.00533 <0.001 0.00111 0.0133 <0.0002 <0.0002 2.76 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 8.2 47 <0.05 0.171 1 <0.001 0.00219 <0.001 <0.001 0.00248 0.00779 0.00258 0.00251 0.00452 <0.0002 <0.0002 4.81 12/2019 No Flow No Flow 1/24/2020 0.91 6.8 5.1 <0.05 0.536 1 <0.001 0.00164 <0.001 <0.001 0.00139 0.0614 0.00292 0.00556 0.00456 <0.0002 <0.0002 2.25 2/2020 No Flow No Flow 3/3/2020 0.83 7.0 72 <0.05 0.189 <0.001 0.00224 <0.001 <0.001 0.00314 0.00952 0.00734 0.00332 0.00204 <0.0002 <0.0002 5.52 4/2020 No Flow No Flow 5/27/2020 1.46 7.1 36 <0.05 0.089 <0.001 0.00140 <0.001 <0.001 0.00207 0.00513 0.00196 0.00131 0.00208 <0.0002 <0.0002 3.74 6/16/2020 0.51 6.1 11 <0.05 0.335 <0.001 0.00230 <0.001 <0.001 0.00124 0.00801 0.00140 0.00198 0.00855 <0.0002 <0.0002 2.71 7/2020 No Flow 8/21/2020 0.43 6.9 2.8 <0.05 0.038 <0.001 0.00153 <0.001 <0.001 <0.001 0.00383 <0.001 <0.001 0.00538 <0.0002 <0.0002 2.15 9/17/2020 1.86 7.6 9.5 <0.05 0.086 <0.001 0.00328 <0.001 <0.001 <0.001 0.00954 0.00102 0.00195 0.00672 <0.0002 <0.0002 6.27 10/2020 No Flow No Flow 11/11/2020 0.46 7.9 <2.5 <0.05 0.076 <0.001 0.00142 <0.001 <0.001 <0.001 0.00198 <0.001 <0.001 0.00610 <0.0002 <0.0002 1.13 12/14/2020 0.43 7.4 10 <0.05 0.105 <0.001 0.00179 <0.001 <0.001 0.00114 0.00398 0.00270 0.00125 0.00471 <0.0002 <0.0002 3.01 1/2021 No Flow No Flow 2/22/2021 0.40 7.8 9.2 <0.05 1 0.122 <0.001 0.00119 <0.001 <0.001 <0.001 0.00156 0.00114 <0.001 0.00421 <0.0002 <0.0002 1.07 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L- micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO10 \ 5° ova a\�o �\'tea \° §A\ Parameter °� �\x 5°\ 5bra �e Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.3 1 8.2 1 <0.05 1 0.043 1 <0.001 1 0.00223 1 <0.001 I <0.001 1 0.00133 1 0.00815 1 <0.001 1 0.00134 1 0.0117 1 <0.0002 1 <0.0002 1 4.88 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 1 8.0 1 660 1 <0.05 1 0.137 1 <0.001 1 0.0144 1 <0.001 I <0.001 1 0.0199 1 0.0464 1 0.0158 0.0231 0.00512 1 <0.0002 0.000328 1 46.8 12/2019 No Flow No Flow 1/24/2020 0.91 6.1 <2.5 <0.05 0.049 <0.001 0.00221 <0.001 <0.001 <0.001 0.00200 <0.001 <0.001 0.00465 <0.0002 <0.0002 1.97avg 2/2020 No Flow No Flow 3/3/2020 0.83 6.9 170 <0.05 0.114 <0.001 0.00543 <0.001 <0.001 0.0103 0.0217 0.00735 0.0105 0.00382 <0.0002 <0.0002 1 12.4 4/2020 No Flow No Flow 5/27/2020 1.46 6.3 57 <0.05 0.126 <0.001 0.00499 <0.001 <0.001 0.00443 0.0159 0.00445 0.00428 0.00245 <0.0002 <0.0002 9.04 6/16/2020 0.51 6.1 33 <0.05 0.107 <0.001 0.00717 1 <0.001 <0.001 0.00315 0.0182 0.00165 0.00281 0.00444 1 <0.0002 1 <0.0002 5.80 7/2020 No Flow No Flow 8/21/2020 0.43 6.8 45 <0.05 0.046 <0.001 0.00315 <0.001 <0.001 0.00288 0.00856 0.00221 0.00427 0.00789 <0.0002 <0.0002 4.75 9/17/2020 1.86 7.2 15 <0.05 0.029 <0.001 0.00242 <0.001 <0.001 0.00142 0.00641 <0.001 0.00453 0.00740 <0.0002 <0.0002 5.63avg 10/2020 No Flow No Flow 11/11/2020 0.46 8.1 10 <0.05 0.022 <0.001 0.00218 <0.001 <0.001 0.00210 0.00770 <0.001 0.00175 0.0108 <0.0002 <0.0002 2.18 12/14/2020 0.43 7.2 43 <0.05 0.050 <0.001 0.00399 <0.001 <0.001 0.00408 0.0104 0.00313 0.00694 0.00362 <0.0002 <0.0002 6.24 1/25/2021 0.31 7.5 49.2 <0.05 0.062 <0.001 0.00235 <0.001 <0.001 0.00289 0.00706 0.00239 0.00260 0.00136 <0.0002 <0.0002 7.08 2/11/2021 1 0.46 7.4 6.0 <0.05 0.056 <0.001 0.00167 <0.001 <0.001 0.00215 0.00486 <0.001 0.00311 0.00327 <0.0002 <0.0002 3.29 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-7 \ o �a°tea a /\o oar o`a\ \� '\°tea\ ��o�a C,a\�°tea \C��� °�a� `o�a� e\�°a `o�a� �`°\ A \tea �`'�\� \,��\°� ��`�� tJ �`�� s °•� •� Qe�\ a�� �e�\� a ° e�`�� � et\PLO � ����� a e Parameter o� Comments Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.8 <3 <0.05 0.012 <0.001 <0.001 <0.001 <0.001 <0.001 0.00304 <0.001 <0.001 0.00324 <0.0002 <0.0002 2.78 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-8 o���o/\o � ` /\o �o \o o1, o'`a oto �'`` t`'� etJ a� •�� o� �° �� �� ra �`�tA e Parameter ��° Q Q Q� C. C. C. ea 5 5 1 Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1 1.86 7.7 3.0 <0.05 0.013 1 <0.001 <0.001 <0.001 <0.001 <0.001 0.00329 <0.001 <0.001 0.00327 <0.0002 <0.0002 3.10 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-9 ova\ � ��ap Qe�aea°�a\ `°tea\ \S Q� \Q� \C'���°\G�� C,�\'11o�a `°`ate \�o�a� \`'e��o \/\o�a� °�J \tea` a� ro � Parameter Q Ie IL Comments / Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1H-2020 No Flow No Flow 21-1-2020 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-10 °tea\ \,\° `o` �o/\°tea\ \t Q1 \� a\�o�a\ \C� L\�o�a\ �\ �o�a\ ��\ �a� �o ova\ \/\°tea\ \5� ova\ \� \X10 A °tea �. °tea ot° �.�° .�'�` t5e ��A a� .�� o� �a mac, e� �� ,�a e Parameter P P L L C� �` Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 2H-2019 No Flow No Flow 1H-2020 No Flow No Flow 9/17/2020 1.86 1 7.4 1 6.4 1 0.055 1 0.132 1 <0.001 1 0.00105 1 <0.001 I <0.001 1 0.00100 1 0.00430 1 <0.001 1 0.00230 1 0.00497 1 <0.0002 1 <0.0002 1 3.51 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-11 /\ o a '`°tea\ \\0 a\/\o���°tea tea\ ova\ o'`a ,�, o'`a °t° ��` �'`` �h� etJ as °� r� Qe o� a� ea �o �� �\P ,ca e Parameter Q Q Q Q� C� C� C. 4, 5 lee �` Comments/ Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1H-2020 No Flow No Flow 9/17/2020 1 1.86 7.4 24 <0.05 0.101 1 <0.001 0.00168 <0.001 <0.001 <0.001 1 0.00457 <0.001 1 0.00184 0.00619 <0.0002 1 <0.0002 2.58 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-12 �a� �a� ova\ � �a� a� °� o �`sa\\P��°tea e\`o ��a\�° c�\��` �o�a �o�a� \�°�a� \�e\�o \�o�a� \� t° ° he tJ � � � a ° � � a e Parameter Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.4 17 <0.05 0.076 <0.001 0.00244 <0.001 <0.001 <0.001 0.00509 0.00115 0.00239 1 0.00464 <0.0002 <0.0002 3.45 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-13 Parameter °�a\ \�Q1�°tea \Q'\C'\L\` ���°�a \/\`'e\�° '\°/\0 \9 \A1°�a� o � 5 5 Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Wylie) - Draining soil Date 1H-2019 No Flow No Flow 2H-2019 No Flow No Flow 1/24/2019 0.91 1 7.1 1 11 1 <0.05 1 0.146 1 <0.001 1 0.00101 <0.001 <0.001 I <0.001 1 0.00490 1 <0.001 1 0.00106 1 <0.001 1 <0.0002 1 <0.0002 1 5.76 2/2020 No Flow No Flow 3/3/2020 0.83 1 7.0 1 52 <0.05 0.057 <0.001 0.00101 <0.001 <0.001 1 0.00237 1 0.00476 1 0.00165 1 0.00164 1 <0.001 1 <0.0002 1 <0.0002 1 7.19 4/2020 No Flow No Flow 5/27/2020 1.46 6.9 56 <0.05 0.241 <0.001 0.00287 1 <0.001 <0.001 0.00191 0.00583 1 0.00178 1 0.00710 1 0.00255 1 <0.0002 1 <0.0002 8.02 6/2020 No Flow No Flow 7/2020 No Flow No Flow 8/2020 No Flow No Flow 9/17/2020 1.86 7.7 18 <0.05 0.053 <0.001 0.00155 I <0.001 <0.001 <0.001 0.00416 1 <0.001 1 0.00160 1 <0.001 1 <0.0002 1 <0.0002 5.50 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-14 aea�o\ o �a°tea �a� a `° �a\ a� �o\°tea\ �/\°tea\ a\�°tea\ C,�� �a� o�a� \boa\ \A10 o`a 1, o`a ot° �`` t`'� etJ a� •�� o� ��\A �° �� �� ra e Parameter ��° Q Q Q� C� C� C� ea 5 5 �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.5 50 <0.05 0.127 <0.001 0.00225 <0.001 <0.001 0.00265 0.00566 0.00207 0.00382 0.00183 <0.0002 <0.0002 4.98 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-15 o`a\ /\O /\°tea\ a\ \y /\°tea\\� \/\° \Q�°\ \C,a\ \C'�\�o '\°tea \�,e\�°tea\moo \ \ �\ ot° °�� t5e eta .ct e, Parameter ova Q ova ��° '1, P P a� L L L �. Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 21-1-2020 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO15 yro3ti ,\o /\ova\t �o�a� °�131 XIo/\oIQ ° 5 ��IV o �. > Parameter 'x\ '�°\ r°° Comments/Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 36"RCP to Catawba River (Lake Wylie) - Draining soil borrow area, ash fill, and Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1/24/2020 0.91 6.8 <2.9 0.378 <0.005 <0.001 0.00853 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.949 3/31/2020 0.03 6.9 <2.8 0.443 <0.005 <0.001 0.0205 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.872avg 6/16/2020 0.51 6.2 <2.5 0.542 <0.005 <0.001 0.0100 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.666 8/31/2020 0.27 6.9 <2.5 0.775 <0.005 <0.001 <0.01 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.64avg 11/11/2020 0.46 7.5 <2.5 0.407 0.028 <0.001 0.00329 <0.001 <0.001 <0.001 0.00181 <0.001 0.00154 <0.001 <0.0002 <0.0002 1.46 12/14/2020 0.43 7.5 5.4 0.186 <0.005 <0.001 0.0218 <0.001 <0.001 <0.001 0.00115 <0.001 0.00109 <0.001 <0.0002 <0.0002 2.75 1/25/2021 0.31 7.3 3.2 0.428 <0.005 <0.001 0.0108 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.714 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO16 o a aea�o\ �a\ a� ¢ a\�o�a\ C,�� �a°tea tea\ ova\ \/\oa\ ova\ 11\0 Parameter �a no moo �� ye tJ ac� to Q� aa � ye ��e ay et Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 36"CMP to discharge canal to South For Catawba River - Draining paved/gravel/dirt roads, and ash haul road. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2/2019 0.11 7.6 <5 <0.05 0.072 <0.001 <0.001 <0.001 <0.001 <0.001 0.00117 <0.001 <0.001 <0.001 <0.0002 <0.0002 <0.5 5/2018 No Flow No Flow 6/7/2019 1.06 7.3 180 <0.05 0.350 <0.001 0.00330 <0.001 <0.001 0.00628 0.0102 0.00373 0.00392 <0.001 <0.0002 <0.0002 7.03 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 7.5 <0.05 <0.001 0.00289 <0.001 <0.001 0.00290 0.00161 0.00215 <0.001 <0.0002 <0.0002 6.69avg 12/2019 No Flow No Flow 1/24/2020 0.91 6.9 <0.05 <0.001 <0.001 <0.001 <0.001 0.00124 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.57 2/2020 No Flow No Flow 3/3/2020 0.83 7.1 <0.05 <0.001 0.00224 <0.001 <0.001 0.00660 0.00327 0.00450 <0.001 <0.0002 <0.0002 11.4 4/2020 No Flow No Flow 5/27/2020 1.46 6.7 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.855avg 6/16/2020 0.51 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.662 8/21/2020 0.43 7.0 <0.05 <0.001 0.00433 <0.001 <0.001 0.00161 <0.001 0.00132 0.00108 <0.0002 <0.0002 6.31 9/17/2020 1.86 7.5 <0.05 <0.001 0.00835 <0.001 <0.001 0.00511 0.00307 0.00458 0.00318 <0.0002 <0.0002 19.3 10/2020 No Flow No Flow 11/11/2020 0.46 7.9 <0.05 0.00126 0.0115 <0.001 <0.001 0.00876 0.00522 0.00764 0.00229 <0.0002 <0.0002 20.2 12/14/2020 0.43 7.3 <0.05 <0.001 0.00106 <0.001 <0.001 0.00133 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.56 1/25/2020 0.31 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.738 2/11/2020 0.46 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.43avg SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport avg - average of primary and duplicate. Allen Storm Water Outfall SWO18 o\\ay a\ a\ a\ eat °� ova\ 'Il 'l°� `o�a� a \�o�°tea\1�0ea5� o� \P¢O a� r Comments/NotesParameter Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L 48"CMP to discharge canal to South Fork Catawba River - Draining paved roads, ash haul road sluce piping and switchyard. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE <-Detect-> 15 Frequency SA SA SA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SA SA SA SA SA SA SA SA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2/2019 0.11 7.7 <5 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 I <0.001 <0.001 1 <0.0002 <0.0002 0.507avg Discontinued NRS 5/2019 No Flow No Flow 6/7/2019 1.06 7.3 190 <0.05 0.017 <0.001 <0.001 <0.001 <0.001 0.00425 0.00784 0.00249 1 0.00228 <0.001 1 <0.0002 <0.0002 8.65a g Discontinued <5.0 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 7.8 10 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00378 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 2.61 1 Discontinued <5.0 12/2019 No Flow No Flow 1/24/2020 0.91 7.2 3.2 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00128 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 1.35 1 Discontinued <5.0 2/2020 No Flow No Flow 3/3/2020 0.83 7.3 390 <0.05 0.035 <0.001 0.00131 <0.001 <0.001 0.00863 0.0180 0.007111 0.00457 <0.001 1 <0.0002 1<0.00021 19.0 1 Discontinued <5.0 4/2020 No Flow No Flow 5/27/2020 1.46 6.8 6.5 <0.05 0.014 <0.001 <0.001 <0.001 <0.001 <0.001 0.00145 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 1.46 1 Discontinued <5.0 6/16/2020 0.51 7.5 4.6 <0.05 0.006 <0.001 <0.001 <0.001 <0.001 <0.001 0.00107 <0.001 I <0.001 <0.001 1 <0.0002 <0.0002 1.77a,g I Discontinued <5.0 7/2020 No Flow No Flow 8/21/2020 0.43 7.3 37 <0.05 0.005 <0.001 <0.001 <0.001 <0.001 0.00142 0.00354 <0.001 <0.001 <0.001 1 <0.0002 <0.0002 4.91a"g Discontinued <5.0 9/17/2020 1.86 7.7 11 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00168 <0.001 <0.001 <0.001 1 <0.0002 1<0.00021 4.94 1 Discontinued <5.0 10/2020 No Flow No Flow 11/11/2020 0.46 7.6 13 <0.05 0.090 <0.001 <0.001 <0.001 <0.001 <0.001 0.0128 0.00198 <0.001 <0.001 <0.0002 <0.0002 4.30avg Discontinued <5.0 12/14/2020 0.43 7.3 15 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00156 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.74 Discontinued <5.0 1/25/2021 0.31 7.6 4.4 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.00avg <5.0 2/11/2021 0.46 7.7 4.8 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.05 Discontinued <5.0 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SW020 5 '`°� \`o� \,<o ova\ a\ "a\ °` ova \5� �� \�a\ \La \�'\�°� \° ova � ova oto \�° �Q eat \� eye ray e� Parameter � 9 Q> '� P P Q> C� C C.�oComments/Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 48"CMP to discharge canal to South Fork Catawba River- Draining paved roads, gravel storage const. parking area. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/2019 No Flow No Flow 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 1 7.9 1 320 1 <0.05 1 0.055 1 <0.001 1 0.00104 1 <0.001 <0.001 1 0.00746 1 0.0171 1 0.00483 1 0.00535 1 <0.001 1 <0.0002 1 <0.0002 28.6 12/2019 No Flow No Flow 1/24/20 0.91 7.2 1 110 1 <0.05 1 0.066 <0.001 0.00107 <0.001 <0.001 0.00715 0.116 0.00485 0.00241 <0.001 1 <0.0002 1 <0.0002 22.2 2/2020 No Flow No Flow 3/3/20 0.83 7.2 330 <0.05 0.049 <0.001 0.00121 <0.001 <0.001 0.0112 0.0209 0.00821 0.00487 <0.001 <0.0002 <0.0002 32.7 4/2020 No Flow No Flow 5/27/20 1.46 7.2 220 <0.05 0.077 <0.001 <0.001 <0.001 <0.001 0.00474 0.0192 0.00233 0.00564 <0.001 <0.0002 <0.0002 8.87 6/16/20 0.51 6.3 94 <0.05 0.050 <0.001 <0.001 <0.001 <0.001 0.00299 0.0112 0.00127 0.00280 <0.001 <0.0002 <0.0002 9.17 7/2020 No Flow No Flow 8/21/20 0.43 7.2 350 <0.05 0.071 <0.001 0.00150 <0.001 <0.001 0.00690 0.0171 0.00491 0.00448 <0.001 <0.0002 <0.0002 15.0 9/17/20 1.86 7.8 370 <0.05 0.082 <0.001 <0.001 <0.001 <0.001 0.00517 0.0207 0.00291 0.00608 <0.001 <0.0002 <0.0002 10.7 10/2020 No Flow No Flow 11/11/20 0.46 7.9 130 <0.05 0.048 <0.001 0.00138 <0.001 <0.001 0.00516 0.0149 0.00356 0.00349 <0.001 <0.0002 <0.0002 11.0 12/14/20 0.43 7.6 2,200 <0.05 0.395 <0.001 0.00277 0.00344 <0.001 0.0451 0.288 0.020 0.052 <0.001 <0.0002 0.000651 13.6avg 2/22/21 0.40 7.8 21 <0.05 0.009 <0.001 <0.001 <0.001 <0.001 0.00197 0.00418 0.00106 0.00125 <0.001 <0.0002 <0.0002 5.29avg SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Steam Station 253 Plant Allen Road Belmont, NC 28012 April 7, 2021 North Carolina Division of Water Resources DEMLR Stormwater Program Attn: Jim Farkas 1612 Mail Service Center Raleigh, NC 27699-1612 Subject: Duke Energy Carolinas, LLC Allen Steam Station NPDES Stormwater Permit NCS000546 Renewal Application Update Dear Mr. Farkas: Duke Energy Carolinas, LLC. requests the following updated information be included with the October 29, 2019 renewal application package: 1. Summary of Analytical Monitoring results for the time period 2019 to Q1 2021. 2. Summary of Visual Monitoring results for the time period 2019 to Q1 2021. 3. Narrative of site activities If you have any questions, please contact Elizabeth Glenn (980) 373-0530 or Elizabeth.glenn@duke- energy.com. I certifi,, underpenalty of law, that this docttntent and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualifiedpersonne/properly gather and evaluate the information submitted. Based on my inquiry of the person orpersons ivho manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aivare that there are significant penalties for submitting false information, including the possibility of fines and imprisonment far knowing violations. SiLwerely, ick R. Roper General Manager III Allen Steam Station Enclosures Narrative of Site Activities In order to facilitate safe closure of the ash basins at Plant Allen, three onsite landfills will be constructed. Of the three landfills, the North Starter Landfill (NSLF) will be the only landfill with potential stormwater impacts known at this stage of planning. Subsequent landfills will be covered under the NPDES Wastewater permit and associated outfalls. The NSLF will be constructed in the SW015 drainage area. All ash contact water will be handled and treated through the NPDES Wastewater permit and associated outfalls. DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW001 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 12/20/2017 BrownishRed None 3 3 3 None None None 0.9 11/2/2018 Clear None 1 1 1 None None None 0.53 12/14/2018 Clear None 1 1 1 1 None None None 0.78 12/20/2018 Clear None 1 1 1 None None None 1.49 1/2019 No Qualifying Event 2/2019 No Qualifying Event 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 4/5/2019 Orange None 3 1 3 None I None None 0.92 5/2019 No Qualifying Event 6/2019 No Qualifying Event 7/2019 No Qualifying Event 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No Flow 0.91 2/6/2020 Orange None 3 1 3 None None None 2.33 3/3/2020 Orange None 2 2 2 None None None 0.83 5/19/2020 No Flow 1.4 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case � ram■ ■■ AP, r r' POs .5/ 2020 No Flow 7 020 Mh Moe" I No Qualifying Event 10 0 No Qualifying Event 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 2/2021 No Qualifying Event Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW001A L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 12/14/2018 No Flow 0.78 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 1/24/2020 No Flow 0.91 5/19/2020 No Flow 1.4 5/27/2020 No Flow 1.46 11/2020 No Flow 0.46 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE .. ENERGY: Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW002 �, rarl"Cr Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipit; Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 Clear None 1 1 1 None None None 0.51 3/2019 No Qualifying Event 4/5/2019 Lt. Tan None 2 1 2 1 None None None 0.92 6/2019 No Qualifying Event 7/23/2019 Clear None 1 1 1 1 None None None 0.88 9/2019 No Qualifying Event 1/24/2020 Clear None 1 1 1 None None None 0.91 2/6/2020 Lt. tan None 2 1 1 None None None 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Tan None 3 1 2 None None None 1.86 11/2020 No Flow 0.46 12/14/20 Clear to faint None 2 1 1 1 None None None 0.43 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case %> DUKE ENERGY: <M'7 C;"I-MCI"CP Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW003 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifing Event 4/5/2019 Lt. Orange _Tan None 2 1 2 None None None 0.92 6/2019 No Qualifying Event 9/2019 No Qualifying Event 1/24/2020 No Flow 0.91 2/6/2020 Lt. tan None 2 1 1 None None None 2.33 5/19/2020 No Flow 1.4 5/27/2020 No Flow 1.46 9/17/2020 Clear None 1 1 1 None None None 1.86 11/2020 No Flow 0.46 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW005 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 Clear None 1 1 1 None None None 0.51 3/2019 1 No Qualifying Event 4/5/2019 Clear - White None 1 1 2 None None None 0.92 6/2019 No Qualifying Event 9/2019 No Qualifying Event 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Clear None 1 2 1 None None None 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 5/19/2020 Inaccessible 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 11/2020 No Flow 0.46 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE ENERGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW007 C,,'� Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 Clear None 2 1 1 1 None I None None 0.51 3/2019 No Qualifying Event 4/5/2019 Clear -White None 1 1 1.5 None None None 0.92 6/7/2019 Clear - White None 1 1 1 None None None 1.06 7/2019 No Qualifying Event 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Tan None 1 1 1 None None None 0.59 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Clear None 2 1 1 None None None 0.91 2/6/2020 Lt. Tan None 1 1 1 None None None 2.33 3/3/2020 Brown/tan None 2 2 2 None I None None 0.83 4/20 No Qualifying Event 5/19/2020 Inaccessible 1.4 5/27/2020 Clear None 1 2 1 None None None 1.46 6/16/2020 Clear None 1 1 1 None None None 0.51 7/2020 No Qualifying Event 8/31/2020 Cloudy v. faint gray None 1 1 1 None None None 0.27 9/17/2020 Clear None 1 1 1 None None None 1.86 10/2020 No Qualifying Event 11/2020 Slightly cloudy None 1 1 1 None None None 0.46 12/14/2020 Clear to faint None 2 1 1 None None None 0.43 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case ���■1■I IL Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case /. DUKE "ENERGY.. Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW008 < Card"o Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 Clear None 1 1 1 None None None 0.51 3/2019 1 No Qualifying Event 4/5/2019 Lt. Tan None 1 1 2 None None None 0.92 6/7/2019 Clear - White None 1 1 1 None None None 1.06 9/2019 No Qualifying Event 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Clear None 1 1 1 None None None 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 8/31/2020 Faint Brown None 2 1 1 None None None 0.27 1112020 Clear None 1 1 1 None None None 0.46 12/14/2020 Clear to faint None 2 1 1 None None None 0.43 1/25/2021 Clear None 1 1 1 None None None 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE . ENERGY, Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW009 Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 Clear None 1 1 2 7 None None None 0.51 3/2019 No Qualifying Event 4/5/2019 Lt. Tan None 1 1 2 1 None None None 0.92 5/2019 No Qualifying Event 6/7/2019 Clear - White None 1 1 1 None None None 1.06 7/23/2019 Clear None 1 1 1 None None None 0.88 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Brown None 1 1 1 None None None 0.59 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Clear None 1 1 1 None None None 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 3/3/2020 Black None 2 2 2 1 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Clear None 1 1 1 None None None 1.4 5/27/2020 Slight haze None 1 2 1 None None None 1.46 6/16/2020 Clear None 1 2 1 None None None 0.51 7/2020 No Qualifying Event 8/21/2020 Clear None 1 1 1 None None None 0.43 9/17/2020 Tan None 3 2 1 None None None 1.86 10/2020 No Qualifying Event 11/2020 Clear None 1 1 1 None None None 0.46 12/14/2020 Clear to faint None 2 1 1 None None None 0.43 1/25/2020 No Flow 0.31 2/12/2021 Clear None 1 2 1 1 None None None 0.43 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case ,DUKE vq, ' ENERGY,, Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt C,,'� Cardno Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW010 Summary of Stormwater Discharge Outfall (SDO) Qualitative Mon Discharge Assessment Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case Date: Color Odor Clarity Floatingil Solids SuspendedErosion Solids Foam r07- Sheen / 1 C No Qualifying Event 2/12/2019 Clear None 1 1 1 1 None I None No 3/2019 No Qualifying Event 4/5/2019 Dk. Brown None 4 2 4 None None No 5/2019 No Qualifying Event 6/7/2019 Clear - White None 1 1 1 None None No 7/23/2019 Clear None 1 1 1 None None No 8/2019 No Qualifying Event 9/2019 No Qualifying Event 701 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case �.10019 L..F %J I XL— Quafffyi ■ "M ■4 11 /2019 4 4 None None No 12/2 019 _Ej4 le n 1 1 1 None None No 1/24/2020 Slightly tan None 2 1 1 None None No 2/6/2020 Lt. Brown None 2 1 2 None None No 3/3/2020 Lt. Brown None 2 2 2 None I None No 4/20 No Qualifying Event 5/19/2020 Clear None 1 1 1 None None No 5/27/2020 Lt brown None 2 1 2 None None No 6/16/2020 Clear None 1 1 1 None None No 7/2020 No Qualifying Event Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case 2026 . None 2 1 N -.8/jff 17/2020 t 2 1 1 1 1 1 None I None No 10 0 No Qualifying Event 11/2020 Clear None 1 1 1 None None No 12/14/2020 Clear to faint None 2 1 1 None None No 1/25/2021 Faint Tan None 2 1 2 None None No 2/11/2021 Faint Tan None 2 1 1 None None No 7*1 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case f, ...: DUKE ." ENERGY,, arts Tntal FvPnt Prarinitntinn C7 Cardno Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case .dr- . --ru.- m e,�-.-.. )eposition I (in) e ne 1 0.51 1 ne 1 0.92 1 ne 1.06 ne 0.88 C,,'O� Cardno Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case MI IL-0-r- ne ne ne 0.91 ne 2.33 ne 0.83 ne 1.4 ne 1.46 ne 0.51 'e C,,'o� Cardno Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case NO MIVA� Ye C,'� Cardno Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-7 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 7/23/2019 Clear None 1 1 1 None I None None 0.88 9/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-8 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 4/5/2019 Clear None 1.5 1 1.5 None I None None 0.92 6/2019 No Qualifying Event 9/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 Lt. Tan None 2 1 1 None None None 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-9 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 No flow 2.33 5/19/2020 No flow 1.4 9/17/2020 No flow 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-10 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifing Event 4/5/2019 Lt. Yellow None 2 2 1.5 None None F None 0.92 6/2019 No Qualifying Event 7/23/2019 Clear None 1 1 1 None I None None 0.88 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 No flow 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 10/2020 No Qualifying Event 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 2/2021 No access due to drilling blocking road 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-11 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 No flow 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-12 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 5/19/2020 Clear None 1 1 1 None None None 1.4 9/17/2020 Clear None 1 1 1 None None None 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE �. ENERGY:,, Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW0013-13 <,,7 Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipit; Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 3/2019 No Qualifying Event 6/2019 No Qualifying Event 7/23/2019 Clear None 1 1 1 1 None I None None 0.88 9/2019 No Qualifying Event 1/24/2020 Clear None 2 1 1 None None None 0.91 2/6/2020 Clear None 1 1 1 None None None 2.33 3/3/2020 Lt. Orange None 2 2 2 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Clear None 1 1 1 None None None 1.4 5/27/2020 Gray None 2 1 2 None None None 1.46 7/2020 No Qualifying Event 9/17/2020 Faint Tan None 2 1 1 1 None I None None 1.86 10/2020 No Qualifying Event 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 2/2021 No access due to drilling blocking road 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case (' DUKE ENERGY, L,"7 Car-dno Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-14 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 No flow 2.33 5/19/2020 No flow 1.4 9/17/2020 No flow 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0013-15 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 2/12/2019 No Flow 0.51 3/2019 No Qualifying Event 6/2019 No Qualifying Event 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 No flow 0.91 2/6/2020 No flow 2.33 9/17/2020 Clear None 1 1 1 None None None 1.86 12/2020 No Qualifying Event 1/25/2020 No Flow 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE E RGY Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. Phone Number: Outfall Number: NCS000546 704.829.2350 SW0015 L, Cardno Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 3/2019 No Qualifying Event 6/2019 No Qualifying Event 7/23/2019 Clear None 1 1 1 None I None None 0.88 9/2019 No Qualifying Event 12/2019 No Qualifying Event 1/24/2020 Clear None 1 1 1 None None None 0.91 3/31/2020 Clear None 1 1 1 None None None 0.03 5/19/2020 Clear None 1 1 1 None None None 1.4 6/16/2020 Clear None 1 1 1 None None None 0.51 8/31/2020 Clear None 1 1 1 None None None 0.27 11/2020 Clear Slight 1 1 1 None None None 0.46 12/14/2020 Tan None 3 2 2 None None None 0.43 1/25/2020 Clear None 1 1 1 None None None 0.31 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case I AqCmft� DUKE 1. ENERGY. Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW016 " "r ogy"ey Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 Clear None 2 1 2 1 None I None None 0.51 3/2019 1 No Qualifying Event 4/2/2019 Clear None 1 1 1 None None None 0.11 4/5/2019 Orange Brown None 4 1 4 None None None 0.92 5/2019 No Qualifying Event 6/7/2019 Cloudy, red None 5 3 4 None None None 1.06 7/23/2019 Clear None 1 1 1 None None None 0.88 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Brownish Tan None 2 2 2 None None None 0.59 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Clear None 1 1 1 None None None 0.91 2/6/2020 Lt. Red None 1 1 2 None None None 2.33 3/3/2020 Lt. Orange None 2 2 2 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Clear None 1 1 1 None None None 1.4 5/27/2020 Clear None 1 1 1 None None None 1.46 6/16/2020 Clear None 1 1 1 None None None 0.51 7/2020 No Qualifying Event 8/21/2020 Clear/yellow None 1 1 2 None None None 0.43 9/17/2020 Faint tan None 2 1 1 None None None 1.86 10/2020 No Qualifying Event 11/2020 Slightly cloudy None 2 1 1 None None None 0.46 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case mw1�&-I■I►J Eu—jk-kiidWOMPA441=1 © o o � � rem ay If i. M NI I :9 �XMgkq "Cirma Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case DUKE ENERGY. Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW018 Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 V. Lt. Brown None 2 1 2 1 None I None None 0.51 3/2019 1 No Qualifying Event 4/2/2019 Clear None 1 1 1 None None None 0.11 4/5/2019 Orange - Tan None 4 2 4 None None None 0.92 5/2019 No Qualifying Event 6/7/2019 Cloudy, red None 5 4 2 None None None 1.06 7/23/2019 Clear None 1 1 1 None None None 0.88 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Brown None 1 1 1 None None None 0.59 12/23/2019 Light Red None 2 1 1 None None None 1.2 1/24/2020 V. Faint tan None 2 1 1 None None None 0.91 2/6/2020 Lt. Orange None 2 1 2 None None None 2.33 3/3/2020 Orange None 3 3 3 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Faint tan None 2 1 1 None None None 1.4 5/27/2020 Clear None 1 2 1 None None None 1.46 6/16/2020 Faint tan None 2 1 2 None None None 0.51 7/2020 No Qualifying Event 8/21/2020 Slightly tan None 2 1 3 None None None 0.43 9/17/2020 Faint tan None 2 1 1 None None None 1.86 10/2020 No Qualifying Event 11/2020 Clear None 2 1 1 None None None 0.46 12/14/2020 V. Faint tan None 2 1 2 None None None 0.43 1/25/2020 Clear None 1 1 2 None None None 0.31 2/11/2021 Clear None 1 1 2 None None None 0.46 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1= Best Case and 5 = Worst Case (' DUKE ENERGY.: Facility Name: Allen Steam Station County: Gaston Site Contact: Randy Gantt Individual NPDES Permit No. NCS000546 Phone Number: 704.829.2350 Outfall Number: SW020 Summary of Stormwater Discharge Outfall (SDO) Qualitative Monitoring Reports Date: Discharge Assessment Erosion / Deposition Total Event Precipitation (in) Color Odor Clarity Floating Solids Suspended Solids Foam Oil Sheen 1/2019 No Qualifying Event 2/12/2019 Clear None 1 1 1 1 None I None None 0.51 3/2019 No Qualifying Event 4/5/2019 Lt. Tan None 1 1 2 1 None I None None 0.92 5/2019 No Qualifying Event 6/2019 No Qualifying Event 7/2019 No Qualifying Event 8/2019 No Qualifying Event 9/2019 No Qualifying Event 10/2019 No Qualifying Event 11/12/2019 Orange None 3 3 3 None None None 0.59 12/23/2019 Clear None 1 1 1 None None None 1.2 1/24/2020 Orange None 4 2 4 None None None 0.91 2/6/2020 Orange None 3 1 3 None None None 2.33 3/3/2020 Dark Orange None 4 4 4 None None None 0.83 4/20 No Qualifying Event 5/19/2020 Faint tan None 2 1 1 None None None 1.4 5/27/2020 Lt. Brown None 2 1 2 None None None 1.46 6/16/2020 Tan None 3 1 2 None None None 0.51 7/2020 No Qualifying Event 8/21/2020 Orange None 4 1 2 None None None 0.43 9/17/2020 Tan None 3 1 2 None None None 1.86 10/2020 No Qualifying Event 11/2020 Slightly Orange None 2 1 1 None None None 0.46 12/14/2020 Brown None 4 2 2 None None None 0.43 1/25/2020 No Flow 0.31 2/12/2021 Faint tan None 2 1 1 None I None None 0.43 Notes: Value assessment of 1-5 for Clarity, Floating Solids and Suspended Solid. Values increasing upward by severity 1 = Best Case and 5 = Worst Case Parameter Units Benchmark Frequency Date 1/2019 2/2019 3/2019 4/2019 5/2019 6/2019 7/2019 8/2019 9/2019 10/2019 11/12/2019 12/2019 1/24/20 2/2020 3/3/20 4/2020 5/27/20 6/16/20 7/2020 8/21/20 9/17/20 10/2020 11/11/20 12/14/20 2/22/21 Allen Storm Water Outfall SW020 �C;\ 0 tea\ 2a' /\ova 0 inches SU mg/L mg/L mg/L mg/L mg/L NA 6.0-9.0 100 NE 0.126 0.09 0.34 SA-QCA QCA SA-QCA QCA QCA QCA QCA 0.59 1 7.9 1 320 1 <0.05 1 0.055 0.91 1 7.2 1 110 1 <0.05 1 0.066 0.83 1 7.2 1 330 1 <0.05 1 0.049 1.46 1 7.2 220 <0.05 0.077 0.51 6.3 94 <0.05 0.050 0.43 7.2 350 <0.05 0.071 1.86 7.8 370 <0.05 0.082 0.46 7.9 130 <0.05 0.048 0.43 7.6 2,200 <0.05 0.395 0.40 7.8 21 <0.05 0.009 i a� mg/L 0.065 QCA Laa�\ Cry mg/L mg/L 0.003 0.9 QCA QCA a oO\ Lod mg/L 0.010 QCA '\°tea°� P c� �A Comments / Notes mg/L mg/L mg/L mg/L mg/L ng/L 48"CMP to discharge canal to South Fork 0.075 0.335 0.056 0.0003 NE NE Catawba River- Draining paved roads, gravel storage const. parking area. QCA QCA QCA QCA QCA QCA No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow <0.001 0.00104 <0.001 <0.001 0.00746 0.0171 0.00483 0.00535 <0.001 <0.0002 <0.0002 28.6 No Flow <0.001 0.00107 <0.001 <0.001 0.00715 0.116 0.00485 0.00241 <0.001 <0.0002 <0.0002 22.2 No Flow <0.001 0.00121 <0.001 <0.001 0.0112 0.0209 0.00821 0.00487 <0.001 <0.0002 <0.0002 32.7 No Flow <0.001 <0.001 <0.001 <0.001 0.00474 0.0192 0.00233 0.00564 <0.001 <0.0002 <0.0002 8.87 <0.001 <0.001 <0.001 <0.001 0.00299 0.0112 0.00127 0.00280 <0.001 <0.0002 <0.0002 9.17 No Flow <0.001 0.00150 <0.001 <0.001 0.00690 0.0171 0.00491 0.00448 <0.001 <0.0002 <0.0002 15.0 <0.001 <0.001 <0.001 <0.001 0.00517 0.0207 0.00291 0.00608 <0.001 <0.0002 <0.0002 10.7 No Flow <0.001 0.00138 <0.001 <0.001 0.00516 0.0149 0.00356 0.00349 <0.001 <0.0002 <0.0002 11.0 <0.001 0.00277 0.00344 <0.001 0.0451 0.288 0.020 0.052 <0.001 <0.0002 0.000651 13.6avg <0.001 <0.001 <0.001 <0.001 0.00197 0.00418 0.00106 0.00125 <0.001 <0.0002 <0.0002 5.29avg SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow No Flow ►fR:�dMJ No Flow No Flow No Flow No Flow Allen Storm Water Outfall SWO01 Parameter 61, °\ �''�� �a\ �ti a oa �a boa°a /\°` �a� ova �a� ova �a\ ova \� o,0a Al \� e\\P\1 K 9 �eotcments/NotesPeCom Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 12"CMP to Catawba River (Lake Wylie) - Draining gravel road, woodland and RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/2019 No Flow No Flow 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/2019 No Flow No Flow 12/2019 No Flow No Flow 1/2020 No Flow No Flow 2/2020 No Flow No Flow 3/3/2020 0.83 7.3 12 <0.05 0.103 <0.001 <0.001 <0.001 <0.001 0.00407 0.00530 0.00260 0.00114 <0.001 <0.0002 <0.0002 15.0 4/2020 No Flow No Flow 5/2020 No Flow No Flow 6/2020 No Flow No Flow 7/2020 No Flow No Flow 8/2020 No Flow No Flow 9/2020 No Flow No Flow 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO01 A ,�a e\,\o a\,�o �\/\ \/\° o�a� �� e\,\o ova\ ��\ o� �G\ �� ��� `� mot\\� ��� \QUO �� �tA Parameter I ° �X\ �a� ,�o Q>° '�>� Pc P� Q>e C,a Cr Cr° �,� �` �e �� �r �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 12"CMP to Catawba River Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 O.OS6 0.0003 NE NE (Lake Wylie) - Draining gravel road, woodland and RR. Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow 2H-2019 No Flow 1H-2020 No Flow 2H-2020 No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO02 /\oOa X\e °� ova\ \�°� Ga \moo ova\ a\ �3\ /\o �a� /\o �o�a\ Ka�\ ¢oa o`a � \� fie\ \�' \� o� fie\ �\ Parameter o,�a � Q o,�a ono 0 \moo 1, ��� P eye P eta aac� L rto L oQ� L eaa �. 5 5 Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining paved road and laydown area. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow 21-1-2019 No Flow 1/24/2020 0.91 6.9 11 <0.05 0.039 <0.001 0.00159 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.65 9/17/2020 1 1.86 7.6 72 <0.05 0.038 1 <0.001 0.00117 <0.001 <0.001 0.00288 0.00513 1 0.00157 <0.001 <0.001 <0.0002 <0.0002 4.83 12/14/2020 1 0.43 7.6 4.7 <0.05 0.055 1 <0.001 <0.001 <0.001 <0.001 <0.001 0.00526 1 <0.001 0.00117 <0.001 <0.0002 <0.0002 2.65 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO03 \'\°� ova\°� \'\o \,\° va\ X\ o a� �a�°tea �\ a \o`a\° o` '\°`a fie\ �° \ 40 lip 4>N `a `a to �° tJ � r � a ° � � a e Parameter Comments Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 18"CPP to Catawba River (Lake Wylie) - Draining RR lines. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.7 29 <0.05 1 0.017 1 <0.001 1 0.00199 1 <0.001 I <0.001 1 0.00114 1 0.00544 1 <0.001 1 0.00110 1 <0.001 1 <0.0002 1 <0.0002 1 10.4 3/16/2020 7.9 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO05 \'`°� ova\ `°� \'<°� �,`o ova\ a\ tea\°�a tea\ `°°�a 4>N ��ocJ `\P ��\ ��\ \�c� \C'�ja\� tJ � � � a Parameter r a o � e Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 177MP to Catawba River (Lake Wylie) - Draining gravel laydown yard, paved roadway and vegetated slopes. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1/24/2020 0.91 6.8 43 1 0.292 1 0.027 1 <0.001 1 0.00192 1 <0.001 I <0.001 1 0.0031 1 0.00610 1 <0.001 I <0.001 1 0.00248 1 <0.0002 1 <0.0002 1 4.59 9/17/2020 1.86 7.6 3.1 1 <0.05 1 0.067 1 <0.001 I <0.001 I <0.001 I <0.001 I <0.001 1 0.00380 1 <0.001 I <0.001 1 0.00120 1 <0.0002 1 <0.0002 2.37 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO07 ,`°� AI°� \`° °�a� a\ tea\°�a °� �° �° Parameter°tea Q�°tea°1>p��\ p��e ��Laa Cry C.°� yea �`° �,e� �,�� bra �`e Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 18"CMP to Catawba River (Lake Wylie) - Draining gravel roadway, Ls conveyor and RR lines. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.0 <5 <0.05 0.153 <0.001 <0.001 <0.001 <0.001 <0.001 0.00750 <0.001 0.00103 0.00106 <0.0002 <0.0002 3.53 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 8.3 97 <0.05 0.216 <0.001 <0.001 <0.001 <0.001 <0.001 0.00273 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.90 12/2019 No Flow No Flow 1/24/2020 0.91 6.5 20 <0.05 0.315 <0.001 <0.001 <0.001 <0.001 <0.001 0.00134 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.25 2/2020 No Flow No Flow 3/3/2020 0.83 6.6 84 <0.05 0.132 <0.001 <0.001 <0.001 <0.001 0.00104 0.00220 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.61avg 4/2020 No Flow No Flow 5/27/2020 1.46 6.8 85 <0.05 1.03 <0.001 1 0.00629 1 <0.001 <0.001 0.00686 0.0141 1 0.00496 1 0.00630 1 <0.001 <0.0002 1 0.000337 <2.00 6/16/2020 0.51 6.3 13 <0.05 0.267 <0.001 0.00111 <0.001 <0.001 <0.001 0.0.103 <0.001 0.00103 <0.001 <0.0002 <0.0002 2.12 7/2020 No Flow No Flow 8/31/2020 0.27 7.2 29 <0.05 0.055 <0.001 <0.001 <0.001 <0.001 <0.001 0.00187 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.06 9/17/2020 1.86 7.6 42 <0.05 0.168 <0.001 0.00103 <0.001 <0.001 <0.001 0.00281 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.18 10/2020 No Flow No Flow 11/11/2020 0.46 8.3 68 <0.05 0.193 <0.001 0.00155 <0.001 <0.001 0.00110 0.00271 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.30 12/14/2020 0.43 7.6 15 <0.05 0.283 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.34 1/25/2021 0.31 7.2 9.3 <0.05 0.245 <0.001 <0.001 <0.001 <0.001 <0.001 0.00123 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.880 2/2/2021 0.40 7.7 11 <0.05 0.386 <0.001 <0.001 <0.001 <0.001 <0.001 0.00138 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.48 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO08 /\°tea \\° /\° �\ t° .�� Parameter �o` �� �o` mot V�� Pam` Pt �e La Cr COP" �e �� �� �,� �`° �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining gravel Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA roadway & Ls conveyor. Date 6/7/19 1.06 8.4 25 <0.05 0.062 <0.001 0.00140 <0.001 <0.001 0.00104 0.00975 <0.001 0.00182 0.00160 <0.0002 <0.0002 4.39 2H-2019 No Flow No Flow 1/24/2020 0.91 6.9 <2.6 <0.05 0.021 <0.001 <0.001 <0.001 <0.001 <0.001 0.00224 <0.001 <0.001 0.00128 <0.0002 <0.0002 2.00 8/31/2020 0.27 7.2 17 <0.05 0.035 <0.001 0.00162 <0.001 <0.001 0.00138 0.00710 0.00133 0.00150 0.00213 <0.0002 <0.0002 3.62 11/11/2020 0.46 8.5 <2.5 <0.05 0.011 <0.001 <0.001 <0.001 <0.001 <0.001 0.00423 <0.001 <0.001 0.00167 <0.0002 <0.0002 1.77 12/14/2020 0.43 7.7 6.6 <0.05 0.022 <0.001 <0.001 <0.001 <0.001 0.00103 0.00384 <0.001 0.00122 <0.001 <0.0002 <0.0002 2.83 1/25/21 0.31 7.3 12.7 <0.05 0.026 <0.001 <0.001 <0.001 <0.001 I <0.001 1 0.00377 <0.001 0.00133 0.00121 <0.0002 <0.0002 2.26 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO09 °` /\°� �° �a� ova �a\ ova ° tea\ ova\ ����\ Ga\ �L\ ��a� �0 �� 0 �o �� ` \eta �� `p1�° \I� e o� ooi° ��'`� c�a e� ar�° o�� aaa �� ��e ��e ram et Parameter Q Q P L L L �, 5 �; �` Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Concrete ditch to Catawba River (Lake Wylie) - Draining RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date Units inches mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 01/03/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.1 1 <5 <0.05 0.173 <0.001 0.00163 <0.001 I <0.001 I <0.001 0.00533 <0.001 0.00111 0.0133 <0.0002 <0.0002 2.76 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 8.2 47 <0.05 0.171 1 <0.001 0.00219 <0.001 <0.001 0.00248 0.00779 0.00258 0.00251 0.00452 <0.0002 <0.0002 4.81 12/2019 No Flow No Flow 1/24/2020 0.91 6.8 5.1 <0.05 0.536 1 <0.001 0.00164 <0.001 <0.001 0.00139 0.0614 0.00292 0.00556 0.00456 <0.0002 <0.0002 2.25 2/2020 No Flow No Flow 3/3/2020 0.83 7.0 72 <0.05 0.189 <0.001 0.00224 <0.001 <0.001 0.00314 0.00952 0.00734 0.00332 0.00204 <0.0002 <0.0002 5.52 4/2020 No Flow No Flow 5/27/2020 1.46 7.1 36 <0.05 0.089 <0.001 0.00140 <0.001 <0.001 0.00207 0.00513 0.00196 0.00131 0.00208 <0.0002 <0.0002 3.74 6/16/2020 0.51 6.1 11 <0.05 0.335 <0.001 0.00230 <0.001 <0.001 0.00124 0.00801 0.00140 0.00198 0.00855 <0.0002 <0.0002 2.71 7/2020 No Flow 8/21/2020 0.43 6.9 2.8 <0.05 0.038 <0.001 0.00153 <0.001 <0.001 <0.001 0.00383 <0.001 <0.001 0.00538 <0.0002 <0.0002 2.15 9/17/2020 1.86 7.6 9.5 <0.05 0.086 <0.001 0.00328 <0.001 <0.001 <0.001 0.00954 0.00102 0.00195 0.00672 <0.0002 <0.0002 6.27 10/2020 No Flow No Flow 11/11/2020 0.46 7.9 <2.5 <0.05 0.076 <0.001 0.00142 <0.001 <0.001 <0.001 0.00198 <0.001 <0.001 0.00610 <0.0002 <0.0002 1.13 12/14/2020 0.43 7.4 10 <0.05 0.105 <0.001 0.00179 <0.001 <0.001 0.00114 0.00398 0.00270 0.00125 0.00471 <0.0002 <0.0002 3.01 1/2021 No Flow No Flow 2/22/2021 0.40 7.8 9.2 <0.05 1 0.122 <0.001 0.00119 <0.001 <0.001 <0.001 0.00156 0.00114 <0.001 0.00421 <0.0002 <0.0002 1.07 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L- micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO10 \ 5° ova a\�o �\'tea \° §A\ Parameter °� �\x 5°\ 5bra �e Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 24"CMP to Catawba River (Lake Wylie) - Draining RR. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/7/2019 1.06 1 8.3 1 8.2 1 <0.05 1 0.043 1 <0.001 1 0.00223 1 <0.001 I <0.001 1 0.00133 1 0.00815 1 <0.001 1 0.00134 1 0.0117 1 <0.0002 1 <0.0002 1 4.88 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 1 8.0 1 660 1 <0.05 1 0.137 1 <0.001 1 0.0144 1 <0.001 I <0.001 1 0.0199 1 0.0464 1 0.0158 0.0231 0.00512 1 <0.0002 0.000328 1 46.8 12/2019 No Flow No Flow 1/24/2020 0.91 6.1 <2.5 <0.05 0.049 <0.001 0.00221 <0.001 <0.001 <0.001 0.00200 <0.001 <0.001 0.00465 <0.0002 <0.0002 1.97avg 2/2020 No Flow No Flow 3/3/2020 0.83 6.9 170 <0.05 0.114 <0.001 0.00543 <0.001 <0.001 0.0103 0.0217 0.00735 0.0105 0.00382 <0.0002 <0.0002 1 12.4 4/2020 No Flow No Flow 5/27/2020 1.46 6.3 57 <0.05 0.126 <0.001 0.00499 <0.001 <0.001 0.00443 0.0159 0.00445 0.00428 0.00245 <0.0002 <0.0002 9.04 6/16/2020 0.51 6.1 33 <0.05 0.107 <0.001 0.00717 1 <0.001 <0.001 0.00315 0.0182 0.00165 0.00281 0.00444 1 <0.0002 1 <0.0002 5.80 7/2020 No Flow No Flow 8/21/2020 0.43 6.8 45 <0.05 0.046 <0.001 0.00315 <0.001 <0.001 0.00288 0.00856 0.00221 0.00427 0.00789 <0.0002 <0.0002 4.75 9/17/2020 1.86 7.2 15 <0.05 0.029 <0.001 0.00242 <0.001 <0.001 0.00142 0.00641 <0.001 0.00453 0.00740 <0.0002 <0.0002 5.63avg 10/2020 No Flow No Flow 11/11/2020 0.46 8.1 10 <0.05 0.022 <0.001 0.00218 <0.001 <0.001 0.00210 0.00770 <0.001 0.00175 0.0108 <0.0002 <0.0002 2.18 12/14/2020 0.43 7.2 43 <0.05 0.050 <0.001 0.00399 <0.001 <0.001 0.00408 0.0104 0.00313 0.00694 0.00362 <0.0002 <0.0002 6.24 1/25/2021 0.31 7.5 49.2 <0.05 0.062 <0.001 0.00235 <0.001 <0.001 0.00289 0.00706 0.00239 0.00260 0.00136 <0.0002 <0.0002 7.08 2/11/2021 1 0.46 7.4 6.0 <0.05 0.056 <0.001 0.00167 <0.001 <0.001 0.00215 0.00486 <0.001 0.00311 0.00327 <0.0002 <0.0002 3.29 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-7 \ o �a°tea a /\o oar o`a\ \� '\°tea\ ��o�a C,a\�°tea \C��� °�a� `o�a� e\�°a `o�a� �`°\ A \tea �`'�\� \,��\°� ��`�� tJ �`�� s °•� •� Qe�\ a�� �e�\� a ° e�`�� � et\PLO � ����� a e Parameter o� Comments Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.8 <3 <0.05 0.012 <0.001 <0.001 <0.001 <0.001 <0.001 0.00304 <0.001 <0.001 0.00324 <0.0002 <0.0002 2.78 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-8 o���o/\o � ` /\o �o \o o1, o'`a oto �'`` t`'� etJ a� •�� o� �° �� �� ra �`�tA e Parameter ��° Q Q Q� C. C. C. ea 5 5 1 Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1 1.86 7.7 3.0 <0.05 0.013 1 <0.001 <0.001 <0.001 <0.001 <0.001 0.00329 <0.001 <0.001 0.00327 <0.0002 <0.0002 3.10 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-9 ova\ � ��ap Qe�aea°�a\ `°tea\ \S Q� \Q� \C'���°\G�� C,�\'11o�a `°`ate \�o�a� \`'e��o \/\o�a� °�J \tea` a� ro � Parameter Q Ie IL Comments / Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1H-2020 No Flow No Flow 21-1-2020 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-10 °tea\ \,\° `o` �o/\°tea\ \t Q1 \� a\�o�a\ \C� L\�o�a\ �\ �o�a\ ��\ �a� �o ova\ \/\°tea\ \5� ova\ \� \X10 A °tea �. °tea ot° �.�° .�'�` t5e ��A a� .�� o� �a mac, e� �� ,�a e Parameter P P L L C� �` Comments /Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 2H-2019 No Flow No Flow 1H-2020 No Flow No Flow 9/17/2020 1.86 1 7.4 1 6.4 1 0.055 1 0.132 1 <0.001 1 0.00105 1 <0.001 I <0.001 1 0.00100 1 0.00430 1 <0.001 1 0.00230 1 0.00497 1 <0.0002 1 <0.0002 1 3.51 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-11 /\ o a '`°tea\ \\0 a\/\o���°tea tea\ ova\ o'`a ,�, o'`a °t° ��` �'`` �h� etJ as °� r� Qe o� a� ea �o �� �\P ,ca e Parameter Q Q Q Q� C� C� C. 4, 5 lee �` Comments/ Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1H-2020 No Flow No Flow 9/17/2020 1 1.86 7.4 24 <0.05 0.101 1 <0.001 0.00168 <0.001 <0.001 <0.001 1 0.00457 <0.001 1 0.00184 0.00619 <0.0002 1 <0.0002 2.58 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-12 �a� �a� ova\ � �a� a� °� o �`sa\\P��°tea e\`o ��a\�° c�\��` �o�a �o�a� \�°�a� \�e\�o \�o�a� \� t° ° he tJ � � � a ° � � a e Parameter Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.4 17 <0.05 0.076 <0.001 0.00244 <0.001 <0.001 <0.001 0.00509 0.00115 0.00239 1 0.00464 <0.0002 <0.0002 3.45 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-13 Parameter °�a\ \�Q1�°tea \Q'\C'\L\` ���°�a \/\`'e\�° '\°/\0 \9 \A1°�a� o � 5 5 Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Wylie) - Draining soil Date 1H-2019 No Flow No Flow 2H-2019 No Flow No Flow 1/24/2019 0.91 1 7.1 1 11 1 <0.05 1 0.146 1 <0.001 1 0.00101 <0.001 <0.001 I <0.001 1 0.00490 1 <0.001 1 0.00106 1 <0.001 1 <0.0002 1 <0.0002 1 5.76 2/2020 No Flow No Flow 3/3/2020 0.83 1 7.0 1 52 <0.05 0.057 <0.001 0.00101 <0.001 <0.001 1 0.00237 1 0.00476 1 0.00165 1 0.00164 1 <0.001 1 <0.0002 1 <0.0002 1 7.19 4/2020 No Flow No Flow 5/27/2020 1.46 6.9 56 <0.05 0.241 <0.001 0.00287 1 <0.001 <0.001 0.00191 0.00583 1 0.00178 1 0.00710 1 0.00255 1 <0.0002 1 <0.0002 8.02 6/2020 No Flow No Flow 7/2020 No Flow No Flow 8/2020 No Flow No Flow 9/17/2020 1.86 7.7 18 <0.05 0.053 <0.001 0.00155 I <0.001 <0.001 <0.001 0.00416 1 <0.001 1 0.00160 1 <0.001 1 <0.0002 1 <0.0002 5.50 10/2020 No Flow No Flow 11/2020 No Flow No Flow 12/2020 No Flow No Flow 1/2021 No Flow No Flow 2/2021 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-14 aea�o\ o �a°tea �a� a `° �a\ a� �o\°tea\ �/\°tea\ a\�°tea\ C,�� �a� o�a� \boa\ \A10 o`a 1, o`a ot° �`` t`'� etJ a� •�� o� ��\A �° �� �� ra e Parameter ��° Q Q Q� C� C� C� ea 5 5 �` Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 9/17/2020 1.86 7.5 50 <0.05 0.127 <0.001 0.00225 <0.001 <0.001 0.00265 0.00566 0.00207 0.00382 0.00183 <0.0002 <0.0002 4.98 SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO13-15 o`a\ /\O /\°tea\ a\ \y /\°tea\\� \/\° \Q�°\ \C,a\ \C'�\�o '\°tea \�,e\�°tea\moo \ \ �\ ot° °�� t5e eta .ct e, Parameter ova Q ova ��° '1, P P a� L L L �. Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L Fifteen 10"CMPs to Catawba River (Lake Wylie) - Draining soil borrow area and gravel/dirt roadways. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1H-2019 No Flow No Flow 21-1-2019 No Flow No Flow 11-1-2020 No Flow No Flow 21-1-2020 No Flow No Flow SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO15 yro3ti ,\o /\ova\t �o�a� °�131 XIo/\oIQ ° 5 ��IV o �. > Parameter 'x\ '�°\ r°° Comments/Note Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 36"RCP to Catawba River (Lake Wylie) - Draining soil borrow area, ash fill, and Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 11-1-2019 No Flow No Flow 21-1-2019 No Flow No Flow 1/24/2020 0.91 6.8 <2.9 0.378 <0.005 <0.001 0.00853 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.949 3/31/2020 0.03 6.9 <2.8 0.443 <0.005 <0.001 0.0205 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.872avg 6/16/2020 0.51 6.2 <2.5 0.542 <0.005 <0.001 0.0100 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.666 8/31/2020 0.27 6.9 <2.5 0.775 <0.005 <0.001 <0.01 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.64avg 11/11/2020 0.46 7.5 <2.5 0.407 0.028 <0.001 0.00329 <0.001 <0.001 <0.001 0.00181 <0.001 0.00154 <0.001 <0.0002 <0.0002 1.46 12/14/2020 0.43 7.5 5.4 0.186 <0.005 <0.001 0.0218 <0.001 <0.001 <0.001 0.00115 <0.001 0.00109 <0.001 <0.0002 <0.0002 2.75 1/25/2021 0.31 7.3 3.2 0.428 <0.005 <0.001 0.0108 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.714 SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Allen Storm Water Outfall SWO16 o a aea�o\ �a\ a� ¢ a\�o�a\ C,�� �a°tea tea\ ova\ \/\oa\ ova\ 11\0 Parameter �a no moo �� ye tJ ac� to Q� aa � ye ��e ay et Comments / Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 36"CMP to discharge canal to South For Catawba River - Draining paved/gravel/dirt roads, and ash haul road. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2/2019 0.11 7.6 <5 <0.05 0.072 <0.001 <0.001 <0.001 <0.001 <0.001 0.00117 <0.001 <0.001 <0.001 <0.0002 <0.0002 <0.5 5/2018 No Flow No Flow 6/7/2019 1.06 7.3 180 <0.05 0.350 <0.001 0.00330 <0.001 <0.001 0.00628 0.0102 0.00373 0.00392 <0.001 <0.0002 <0.0002 7.03 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 7.5 <0.05 <0.001 0.00289 <0.001 <0.001 0.00290 0.00161 0.00215 <0.001 <0.0002 <0.0002 6.69avg 12/2019 No Flow No Flow 1/24/2020 0.91 6.9 <0.05 <0.001 <0.001 <0.001 <0.001 0.00124 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.57 2/2020 No Flow No Flow 3/3/2020 0.83 7.1 <0.05 <0.001 0.00224 <0.001 <0.001 0.00660 0.00327 0.00450 <0.001 <0.0002 <0.0002 11.4 4/2020 No Flow No Flow 5/27/2020 1.46 6.7 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.855avg 6/16/2020 0.51 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.662 8/21/2020 0.43 7.0 <0.05 <0.001 0.00433 <0.001 <0.001 0.00161 <0.001 0.00132 0.00108 <0.0002 <0.0002 6.31 9/17/2020 1.86 7.5 <0.05 <0.001 0.00835 <0.001 <0.001 0.00511 0.00307 0.00458 0.00318 <0.0002 <0.0002 19.3 10/2020 No Flow No Flow 11/11/2020 0.46 7.9 <0.05 0.00126 0.0115 <0.001 <0.001 0.00876 0.00522 0.00764 0.00229 <0.0002 <0.0002 20.2 12/14/2020 0.43 7.3 <0.05 <0.001 0.00106 <0.001 <0.001 0.00133 <0.001 <0.001 <0.001 <0.0002 <0.0002 3.56 1/25/2020 0.31 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 0.738 2/11/2020 0.46 7.6 <0.05 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.43avg SU - standard units mg/L - milligrams per liter ug/L - micrograms per liter ng/L - nanograms per liter < - not detected at the following level NA - not applicable NE - not established (monitor only) PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport avg - average of primary and duplicate. Allen Storm Water Outfall SWO18 o\\ay a\ a\ a\ eat °� ova\ 'Il 'l°� `o�a� a \�o�°tea\1�0ea5� o� \P¢O a� r Comments/NotesParameter Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L 48"CMP to discharge canal to South Fork Catawba River - Draining paved roads, ash haul road sluce piping and switchyard. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE <-Detect-> 15 Frequency SA SA SA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SACA SA SA SA SA SA SA SA SA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2/2019 0.11 7.7 <5 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 I <0.001 <0.001 1 <0.0002 <0.0002 0.507avg Discontinued NRS 5/2019 No Flow No Flow 6/7/2019 1.06 7.3 190 <0.05 0.017 <0.001 <0.001 <0.001 <0.001 0.00425 0.00784 0.00249 1 0.00228 <0.001 1 <0.0002 <0.0002 8.65a g Discontinued <5.0 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 7.8 10 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00378 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 2.61 1 Discontinued <5.0 12/2019 No Flow No Flow 1/24/2020 0.91 7.2 3.2 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00128 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 1.35 1 Discontinued <5.0 2/2020 No Flow No Flow 3/3/2020 0.83 7.3 390 <0.05 0.035 <0.001 0.00131 <0.001 <0.001 0.00863 0.0180 0.007111 0.00457 <0.001 1 <0.0002 1<0.00021 19.0 1 Discontinued <5.0 4/2020 No Flow No Flow 5/27/2020 1.46 6.8 6.5 <0.05 0.014 <0.001 <0.001 <0.001 <0.001 <0.001 0.00145 <0.001 I <0.001 <0.001 1 <0.0002 1<0.00021 1.46 1 Discontinued <5.0 6/16/2020 0.51 7.5 4.6 <0.05 0.006 <0.001 <0.001 <0.001 <0.001 <0.001 0.00107 <0.001 I <0.001 <0.001 1 <0.0002 <0.0002 1.77a,g I Discontinued <5.0 7/2020 No Flow No Flow 8/21/2020 0.43 7.3 37 <0.05 0.005 <0.001 <0.001 <0.001 <0.001 0.00142 0.00354 <0.001 <0.001 <0.001 1 <0.0002 <0.0002 4.91a"g Discontinued <5.0 9/17/2020 1.86 7.7 11 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00168 <0.001 <0.001 <0.001 1 <0.0002 1<0.00021 4.94 1 Discontinued <5.0 10/2020 No Flow No Flow 11/11/2020 0.46 7.6 13 <0.05 0.090 <0.001 <0.001 <0.001 <0.001 <0.001 0.0128 0.00198 <0.001 <0.001 <0.0002 <0.0002 4.30avg Discontinued <5.0 12/14/2020 0.43 7.3 15 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 0.00156 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.74 Discontinued <5.0 1/25/2021 0.31 7.6 4.4 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 2.00avg <5.0 2/11/2021 0.46 7.7 4.8 <0.05 <0.005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.0002 <0.0002 1.05 Discontinued <5.0 SU - standard units < - not detected at the following level mg/L - milligrams per liter NA - not applicable ug/L - micrograms per liter NE - not established (monitor only) ng/L - nanograms per liter PCB - polychlorinated biphenyls SA - semi-annual SACA Semi-annual during coal or ash transport SA-QCA Semi-annual - Quarterly during coal or ash transport QCA Quarterly during coal or ash transport Allen Storm Water Outfall SW020 5 '`°� \`o� \,<o ova\ a\ "a\ °` ova \5� �� \�a\ \La \�'\�°� \° ova � ova oto \�° �Q eat \� eye ray e� Parameter � 9 Q> '� P P Q> C� C C.�oComments/Notes Units inches SU mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L ng/L 48"CMP to discharge canal to South Fork Catawba River- Draining paved roads, gravel storage const. parking area. Benchmark NA 6.0-9.0 100 NE 0.126 0.09 0.34 0.065 0.003 0.9 0.010 0.075 0.335 0.056 0.0003 NE NE Frequency SA-QCA QCA SA-QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA QCA Date 1/2019 No Flow No Flow 2/2019 No Flow No Flow 3/2019 No Flow No Flow 4/2019 No Flow No Flow 5/2019 No Flow No Flow 6/2019 No Flow No Flow 7/2019 No Flow No Flow 8/2019 No Flow No Flow 9/2019 No Flow No Flow 10/2019 No Flow No Flow 11/12/2019 0.59 1 7.9 1 320 1 <0.05 1 0.055 1 <0.001 1 0.00104 1 <0.001 <0.001 1 0.00746 1 0.0171 1 0.00483 1 0.00535 1 <0.001 1 <0.0002 1 <0.0002 28.6 12/2019 No Flow No Flow 1/24/20 0.91 7.2 1 110 1 <0.05 1 0.066 <0.001 0.00107 <0.001 <0.001 0.00715 0.116 0.00485 0.00241 <0.001 1 <0.0002 1 <0.0002 22.2 2/2020 No Flow No Flow 3/3/20 0.83 7.2 330 <0.05 0.049 <0.001 0.00121 <0.001 <0.001 0.0112 0.0209 0.00821 0.00487 <0.001 <0.0002 <0.0002 32.7 4/2020 No Flow No Flow 5/27/20 1.46 7.2 220 <0.05 0.077 <0.001 <0.001 <0.001 <0.001 0.00474 0.0192 0.00233 0.00564 <0.001 <0.0002 <0.0002 8.87 6/16/20 0.51 6.3 94 <0.05 0.050 <0.001 <0.001 <0.001 <0.001 0.00299 0.0112 0.00127 0.00280 <0.001 <0.0002 <0.0002 9.17 7/2020 No Flow No Flow 8/21/20 0.43 7.2 350 <0.05 0.071 <0.001 0.00150 <0.001 <0.001 0.00690 0.0171 0.00491 0.00448 <0.001 <0.0002 <0.0002 15.0 9/17/20 1.86 7.8 370 <0.05 0.082 <0.001 <0.001 <0.001 <0.001 0.00517 0.0207 0.00291 0.00608 <0.001 <0.0002 <0.0002 10.7 10/2020 No Flow No Flow 11/11/20 0.46 7.9 130 <0.05 0.048 <0.001 0.00138 <0.001 <0.001 0.00516 0.0149 0.00356 0.00349 <0.001 <0.0002 <0.0002 11.0 12/14/20 0.43 7.6 2,200 <0.05 0.395 <0.001 0.00277 0.00344 <0.001 0.0451 0.288 0.020 0.052 <0.001 <0.0002 0.000651 13.6avg 2/22/21 0.40 7.8 21 <0.05 0.009 <0.001 <0.001 <0.001 <0.001 0.00197 0.00418 0.00106 0.00125 <0.001 <0.0002 <0.0002 5.29avg SU - standard units < - not detected at the following level SA - semi-annual mg/L - milligrams per liter NA - not applicable SACA Semi-annual during coal or ash transport ug/L - micrograms per liter NE - not established (monitor only) SA-QCA Semi-annual - Quarterly during coal or ash transport ng/L - nanograms per liter PCB - polychlorinated biphenyls QCA Quarterly during coal or ash transport Young, Brianna A From: Young, Brianna A Sent: Monday, October 11, 2021 12:37 PM To: McCoy, Suzanne; Tollie, Lori White; McDermott, Andrew; Gantt, Michael R; Glenn, Elizabeth Cc: Winston, Cynthia C; Hawkins, Randy Subject: RE: [External] Allen Steam Station stormwater eDMR Permit NCS000546 Lori, Our database has been updated to include the requested SWO13 outfalls. Please note changes in the eDMR system may not appear for 24 hours. Please let me know if have any questions in the interim. Thank you, Brianna Young, MS (she/her) Environmental Program Consultant Industrial Individual Permits Coordinator Stormwater Program NC DEQ/ Division of Energy, Mineral, and Land Resources (DEMLR) Brianna.Young@ncdenr.gov (e-mail preferred during State of Emergency) 919-707-3647 (office) Mailing address: 1612 Mail Service Center, Raleigh, NC 27699-1612 Physical address: 512 North Salisbury Street, Raleigh, NC 27604 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. From: McCoy, Suzanne <suzanne.mccoy@ncdenr.gov> Sent: Wednesday, October 6, 2021 10:43 AM To: Tollie, Lori White <Lori.Tollie@duke-energy.com>; McDermott, Andrew <Andrew.McDermott@duke-energy.com>; Gantt, Michael R <Michael.Gantt@duke-energy.com>; Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com>; Young, Brianna A <Brianna.Young@ncdenr.gov> Cc: Winston, Cynthia C <Cynthia.Winston@duke-energy.com>; Hawkins, Randy <Randy.Hawkins@duke-energy.com> Subject: RE: [External] Allen Steam Station stormwater eDMR Permit NCS000S46 Good morning Lori. Brianna Young, our Individual Industrial Coordinator will review and assist with the Outfall updates. Suzanne McCoy Stormwater Program Administrative Specialist Division of Energy, Mineral and Land Resources Department of Environmental Quality 512 N. Salisbury Street, Office 640K, Raleigh, NC 27604 1612 Mail Service Center, Raleigh, NC 27699-1612 919-707-3640 Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. E QNpRT11 CAlXA.iNA uspiraMM of "lly Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Tollie, Lori White <Lori.Tollie@duke-energy.com> Sent: Wednesday, October 6, 2021 10:38 AM To: McCoy, Suzanne <suzanne.mccoy@ncdenr.gov>; McDermott, Andrew <Andrew.McDermott@duke-energy.com>; Gantt, Michael R <Michael.Gantt@duke-energy.com>; Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com>; Young, Brianna A <Brianna.Young@ncdenr.gov> Cc: Winston, Cynthia C <Cynthia.Winston@duke-energy.com>; Hawkins, Randy <Randy.Hawkins@duke-energy.com> Subject: [External] Allen Steam Station stormwater eDMR Permit NCS000546 CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Hi Suzanne, The Allen Steam Station needs the following corrections in the eDMR system. Include outfalls SWO13-7, SWO13-8, SWO13-9, SW013-10, SW013-11, SW013-12, SW013-13, SWO13-14 and SWO13-15 on the eDMR (currently only 1 outfall associated with SWO13 is available) Since the eDMR has a limit of 4 characters for the outfall name, we'd like to request that the outfalls be listed as 1307, 1308, 1309, 1310, 1311, 1312, 1313, 1314, and 1315. There are 6 other outfalls associated with the drainage area for SWO13 (SW013-1 thru SW013-6). There is no industrial activity in the drainage area for these outfalls so they are not currently monitored. Please don't hesitate to contact me if you have any questions. Thank you. Lori W. Tollie Duke Energy Permitting & Compliance 500 Utility Drive Lewisville, NC 27012 Cell: (336) 408-2591 Office: (336) 854-4916 ENERGY, April 7, 2021 North Carolina Division of Water Resources DEMLR Stormwater Program Attn: Jim Farkas 1612 Mail Service Center Raleigh, NC 27699-1612 Subject: Duke Energy Carolinas, LLC Allen Steam Station NPDES Stormwater Permit NCS000546 Renewal Application Update Dear Mr. Farkas: Allen Steam Station 253 Plant Allen Road R FC I E [YImont, NC 28012 APR 19 2021 DENR-LAND QUALITY vTORMWATER PERMITTING ��NR l a � ° 'R t \NG StC�R��WF�� Duke Energy Carolinas, LLC. requests the following updated information be included with the October 29, 2019 renewal application package: 1. Summary of Analytical Monitoring results for the time period 2019 to Q 1 2021. 2. Summary of Visual Monitoring results for the time period 2019 to Ql 2021. 3. Narrative of site activities If you have any questions, please contact Elizabeth Glenn (980) 373-0530 or Elizabeth.glenn@duke- energy.com. I certify, underpenalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of theperson orpersons who manage the system, or thosepersons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significantpenalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Serely, ick R. 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N F, O ~, F, O 0 F, O FR O F, O O O O O O O O 0 0 D G� 0 0 o 0 0 o p p % r° d/ p 0 p p o p o o p O o o 0 N O O O p O CD CD CDp p /�+r -rl 00 � ~i D o pq C° JTp co FV n1i o °� N AaP �d/ O 0 0 0 0 0 O O 0 0 p 0 0 0 0 0 CD GAT F-` 0 N W Ili A F-` 0 N 0 00 A 0 A o V\ O O Q1 CDIn Dl to I--` lD I--' PI)w V w N I--` co In coD W Ln r �Pd �d/ a/A6J p o o 0 o p o 0 o 0 0 0 0 0 0 0 0 0 o f� w 3 doe F-' In W D1 A N In A N Ln n w\ d/ N -V D In r ^� In to 0000 O A N Lnn c A O n O n O n O n O n O n O n O n O n O p p odd 0 0 0 0 0 0 0 0 0 o D Ln F- F- F- N F- Ql 0 0 0 0 0 0 0 0 0 o rPj o p p o 0 p p o 0 p p o a3q �O 0 N 0 N 0 Pi 0 N 0 N 0 N 0 N 0 N o N O N O o W Sj' /GP 0 0 o q�J� A CDr/ o 0 0 0 0 0 p 0 0 0 0 0 0 0 o 3 o� CD 0 Q o 0 0 0 0 0 0 o p D z m T� d/ N N N NJ N NJ NJN N G� in F Ol lj O1 F- O In N N 00 p Z 000 CD J o V V m D m 2/ 01d/ P�l c Gry z 0 z 0 Z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0 z 0/ °° d T 0 T 0 -n 0 TI 0 T 0 T1 0 = 0 71 O TI 0 TI 0 TI 0 T O = O T7 O m O - o &/T odd/ 16S1F F� v a a a in 0 � o Narrative of Site Activities In order to facilitate safe closure of the ash basins at Plant Allen, three onsite landfills will be constructed. Of the three landfills, the North Starter Landfill (NSLF) will be the only landfill with potential stormwater impacts known at this stage of planning. Subsequent landfills will be covered under the NPDES Wastewater permit and associated outfalls. The NSLF will be constructed in the SW015 drainage area. All ash contact water will be handled and treated through the NPDES Wastewater permit and associated outfalls. Young, Brianna A From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Thursday, April 1, 2021 11:12 AM To: Farkas, Jim J Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Good morning — We should have a package to you by next week. Thank you for the information on the Tier status. Regards, J. Elizabeth Glenn Permitting & Compliance Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 From: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Sent: Thursday, April 1, 20219:17 AM To: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Elizabeth, I'm following up on my earlier email and would like to know the status of the items that I originally requested. Additionally, if you would like to seek Tier Relief for outfalls at this site, you must contact the Regional Office. The facility will have to work with the Regional Engineer/Supervisor in order to determine a path forward to get Tier Relief. Tier Relief is done separately from permit renewal. Let me know if you have any other questions, Jim Farkas Environmental Engineer North Carolina Department of Environmental Quality Division of Energy, Mineral, & Land Resources — Stormwater Program 512 N. Salisbury Street 1612 Mail Service Center Raleigh, NC 27699-1612 (919) 707-3646 Jim. Farkaskncdenr. gov 1 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Tuesday, March 9, 2021 3:17 PM To: Farkas, Jim J <Jim.Farkas@ncdenr.Rov> Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. I am open all morning on Thursday, if that would work for you. 10 am? Will send over a Teams meeting invite. Thanks! J. Elizabeth Glenn Permitting & Compliance Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 From: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Sent: Tuesday, March 9, 2021 3:15 PM To: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Subject: Re: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Sure. Please provide a time that works for you and a number for me to call into (or you can set up a Teams meeting). I'm available the rest of this week except for Friday morning. -Jim From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Tuesday, March 9, 2021 2:59 PM To: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Subject: RE: [EXTERNAL] NCS000546 -Allen Steam Station Permit Renewal CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Jim — I am now the permit contact person for Allen and have a couple of questions/clarification from the email below. Do you have some time this week that we could have a brief call? Thank you, J. Elizabeth Glenn Permitting & Compliance Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 From: Wylie, Robert R <Robert.Wylie@duke-energy.com> Sent: Wednesday, March 3, 2021 2:52 PM To: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Cc: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Jim, Elizabeth Glenn of Duke Energy is now the primary contact for Plant Allen. I have cc'ed Liz on this note. Thanks, Robert From: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Sent: Wednesday, March 3, 2021 2:24 PM To: Wylie, Robert R <Robert.Wylie@duke-energy.com> Subject: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Good afternoon Mr. Wylie: Hello, my name is Jim Farkas and I will be reviewing the NPDES Industrial Stormwater Individual Permit Renewal Application for the Allen Steam Station (Permit Number NCS000546). To get started, we would like to verify that some of the information in the application is still accurate. • You (Robert Wylie) are listed as the current permit contact person. • Paul Draovitch is listed as the current owner. If either of these items are incorrect, please let me know so that we can update our contact information. Information can be updated using the links provided below, where applicable: • Owner Update: https://edocs.deg.nc.gov/Forms/SW-Name-Change • Owner Affiliation (i.e., someone with the company who is designated to represent the company per signatory requirements in the permit (e.g., CEO) or another authorized representative): https://edocs.deg.nc.gov/Forms/SW-Owner-Affiliation • Company of Facility Name: https://edocs.deg.nc.gov/Forms/SW-Name-Change If you are still the current permit contact person, please provide the following technical information so that we may complete our review: • A spreadsheet summarizing all monitoring data the applicant has collected during the current permit term. • A verification that the information in the renewal application is still complete and correct. The submitted application can be viewed at the following web address: https://edocs.deg.nc.gov/WaterResources/Browse.aspx?id=1138408&dbid=0&repo=WaterResources • An explanation of any operational changes since the renewal application was submitted. What happens next: • Once I have the above listed information, I will finish drafting the permit; • You will receive the draft for a 30-day comment period. During this time we will be able to address any comments or concerns you have about your permit draft. During the same 30-day period, the draft will be sent to a Regional Office staff member for review and the permit draft will be sent for Public Notice. Once all comments and concerns are addressed, you will be issued the final permit. Feel free to contact me with any questions as well. Thank you, Jim Farkas Environmental Engineer North Carolina Department of Environmental Quality Division of Energy, Mineral, & Land Resources — Storm -water Program 512 N. Salisbury Street 1612 Mail Service Center Raleigh, NC 27699-1612 (919) 707-3646 Jim.Farkas(agncdenr.gov E F1C�R. rbcriii,a EYrYRYl�FhnYEiYiMli �YN, Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. Young, Brianna A From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Tuesday, March 9, 2021 3:17 PM To: Farkas, Jim J Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. I am open all morning on Thursday, if that would work for you. 10 am? Will send over a Teams meeting invite. Thanks! J. Elizabeth Glenn Permitting & Compliance Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 From: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Sent: Tuesday, March 9, 2021 3:15 PM To: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Subject: Re: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Sure. Please provide a time that works for you and a number for me to call into (or you can set up a Teams meeting). I'm available the rest of this week except for Friday morning. -Jim From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Sent: Tuesday, March 9, 2021 2:59 PM To: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Subject: RE: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Jim — I am now the permit contact person for Allen and have a couple of questions/clarification from the email below. Do you have some time this week that we could have a brief call? Thank you, J. Elizabeth Glenn Permitting & Compliance 1 Duke Energy, Environmental Services Office: (980) 373 0530 Cell: (864) 642 8833 From: Wylie, Robert R <Robert.Wylie@duke-energy.com> Sent: Wednesday, March 3, 2021 2:52 PM To: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Cc: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com> Subject: RE: [EXTERNAL] NCS000546 -Allen Steam Station Permit Renewal Jim, Elizabeth Glenn of Duke Energy is now the primary contact for Plant Allen. I have cc'ed Liz on this note. Thanks, Robert From: Farkas, Jim J <Jim.Farkas@ncdenr.gov> Sent: Wednesday, March 3, 2021 2:24 PM To: Wylie, Robert R <Robert.Wylie@duke-energy.com> Subject: [EXTERNAL] NCS000546 - Allen Steam Station Permit Renewal Good afternoon Mr. Wylie: Hello, my name is Jim Farkas and I will be reviewing the NPDES Industrial Stormwater Individual Permit Renewal Application for the Allen Steam Station (Permit Number NCS000546). To get started, we would like to verify that some of the information in the application is still accurate. • You (Robert Wylie) are listed as the current permit contact person. • Paul Draovitch is listed as the current owner. If either of these items are incorrect, please let me know so that we can update our contact information. Information can be updated using the links provided below, where applicable: • Owner Update: https://edocs.deg.nc.gov/Forms/SW-Name-Change • Owner Affiliation (i.e., someone with the company who is designated to represent the company per signatory requirements in the permit (e.g., CEO) or another authorized representative): https://edocs.deg.nc.gov/Forms/SW-Owner-Affiliation • Company of Facility Name: https://edocs.deg.nc.gov/Forms/SW-Name-Change If you are still the current permit contact person, please provide the following technical information so that we may complete our review: • A spreadsheet summarizing all monitoring data the applicant has collected during the current permit term. • A verification that the information in the renewal application is still complete and correct. The submitted application can be viewed at the following web address: https://edocs.deg.nc.gov/WaterResources/Browse.aspx?id=1138408&dbid=0&repo=WaterResources • An explanation of any operational changes since the renewal application was submitted. What happens next: • Once I have the above listed information, I will finish drafting the permit; • You will receive the draft for a 30-day comment period. During this time we will be able to address any comments or concerns you have about your permit draft. • During the same 30-day period, the draft will be sent to a Regional Office staff member for review and the permit draft will be sent for Public Notice. • Once all comments and concerns are addressed, you will be issued the final permit. Feel free to contact me with any questions as well. Thank you, Jim Farkas Environmental Engineer North Carolina Department of Environmental Quality Division of Energy, Mineral, & Land Resources — Stormwater Program 512 N. Salisbury Street 1612 Mail Service Center Raleigh, NC 27699-1612 (919) 707-3646 Jim.Farkas(agncdenr.gov Ty�CAFO-"_�..... Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time. DUKE ENERGY® Transmitted via email and USPS October 22, 2020 JV G s-ow5ZB X&oo0 �4S �JLsoe, O �-L RED" - DEC C 7 2020 DENR-LAND QUALITY STORMWATER PERMITTING North Carolina epartment of Environmental Quality Division of Water Resources 512 North Salisbury Street Raleigh, NC 27604' &&I Duke Energy Environmental Services 410 S. Wilmington Street Raleigh, NC 27601 RECEIVED OCT 0 3 2020 NC DEQ/DWR Central Office Subject: Response to Division of Environmental Quality's October 8, 2020 Letter Dear Mr. Bolich: This letter responds to the Department's request for information transmitted in the subject letter. In that letter, you acknowledged receipt of the of the US Army Corps of Engineers jurisdictional determination (JD) for the Riverbend site and noted that the determination expired on August 24, 2015. For clarity, Duke Energy has requested that determination be renewed by the US Army Corps of Engineers and that action is currently pending. To reflect the status of this determination, we have updated the list of State and Federal permits obtained or anticipated for impoundment closure at Riverbend as requested. This is provided as Attachment 4 to this letter. Additionally, you requested that copies of any Jurisdictional Determinations for the Buck, Allen and Marshall stations be provided to the staff at the Mooresville Regional office. The following items are being provided to staff as requested as enclosures with this letter. Buck: A Jurisdictional Determination was received on January 8, 2016. A copy of that action along with the subsequent surveyed maps are enclosed with this letter as Attachment 1. Marshall: A Jurisdictional Determination was received on October 5, 2017. A copy of that action along with the maps are enclosed with this letter as Attachment 2. Allen: There has not been a finalized Jurisdictional Determination received for the Allen station. A request was submitted to the USACE in 2017. A copy of the maps provided with that request are attached for reference as Attachment 3. w-ww. duke -energy. coin If there are any questions about the attached JD documents, please let me know. If there are questions about the updated list in Attachment 4, please contact Ms. Tyler Hardin at (980) 373- 5697. Sincerely, 7 E. Shannon Langley Principal Environmental Specialist Enclosures Cc: Duke Energy SME's/FileNet - via email Richard Baker — via email Jim Wells — via email Paul Draovitch -via email Chris Varner — via email Corey Basinger, Regional Supervisor via email and USPS DWR Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Attachment 1 Jurisdictional Determination documents for Buck Steam Station U.S. ARMY CORPS OF ENGINEERS WILMINGTON DISTRICT Action Id. SAW-2015-02029 County: Rowan U.S.G.S. Quad: NC-SALISBURY NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner: Duke Enerev - Environmental Services Steve Cahoon Address: 410 S Wilmington Street Raleigh, NC, 27601 Telephone Number: 919 546-7457 Size (acres) 450 Nearest Waterway Yadkin River USGS HUC 03040103 Nearest Town S encer River Basin Lower Yadkin Coordinates Latitude:35.711029 Longitude:-80.379359 Location description: 155 Dukesville RoadSalisburv, NC 28146Rowan County PIN#6501001,600021,600029,600042,600025,600039, 650216 Duke Energy Carolinas' Indicate Which of the Following Ahnly: A. Preliminary Determination _ Based on preliminary information, there may be waters of the U.S. including wetlands on the above described project area . We strongly suggest you have this property inspected to determine the extent of Department of the Army (DA) jurisdiction. To be considered final, a jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). if you wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also, you may provide new information for further consideration by the Corps to reevaluate the JD. B. Approved Determination There are Navigable Waters of the United States within the above described project area subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. X There are waters of the U.S. including wetlands on the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. _ We strongly suggest you have the waters of the U.S. including wetlands on your project area delineated, Due to the size of }our property and/or our present workload, the Corps may not be able to accomplish this wetland delineation in a timely manner. For a more timely delineation, you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps. X_ The waters of the U.S. including wetlands on your project area have been delineated and the delineation has been verified by the Corps, We strongly suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years. Page I of 2 l _ The waters of the U.S. including wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on . Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. There are no waters of the U.S., to include wetlands, present on the above described project area which are subject to the permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed Five years from the date of this notification. _ The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA). You should contact the Division of Coastal Management in Morehead City, NC, at (252) 808-2808 to determine their requirements. Placement of dredged or fill material within waters of the US and. or wetlands without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this determination and/or the Corps regulatory program, please contact Joyce Thames at 919-5544884 x21 or Jovee.A.Thames(u.usace.armv.mil. C. Basis For Determination: Site hnchndes tribrntories of the Yrnrlkin River which JTmps to the Pee Dee River and on to the Atlantic Ocerun, D. Remarks: Confirmed flagged jurisdictional limits as defined by attached map by site inspection on December 1, 2015. C. Attention USDA Program Participants This delineation/determination has been conducted to identify the limits of Corps' Clean Water Act jurisdiction for the particular site identified in this request. The del ineatiort/determination may not be valid for the wetland conservation provisions of the Food Security Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work. F. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B. above) This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed you will find a Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA form to the following address: US Army Corps of Engineers South Atlantic Division Attn: Jason Steele, Review Officer 60 Forsyth Street SW, Room IOM15 Atlanta, Georgia 30303-8801 In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP Should you decide to submit an RFA form, it must be received at the above address by March 8, 2016. **It is not necessary to submit an RF�tF form to the Division Office ' you do not object to the determination in this correspondence.** f Corps Regulatory Official: Date: January 8, 2016 ' CC: Richard G. Harmon, 4021 Stirrup Creek Drive, Suite 100, Durham, NC 27703 The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so, please complete our Customer Satisfaction Survey, located online at hup, rc ulatc,rN.usacesurvev.coni Applicant: Steve Cahoon File Number: SAW-2015-02029 Date: January 8, 2016 Duke Enerev - Environmental Services Attached is: See Section below INITIAL PROFFERED PERMIT Standard Permit or Letter of ermission) A PROFFERED PERMIT (Standard Permit or Letter ofpermission) B -H PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D N. PRELIMINARY JURISDICTIONAL DETERMINATION E SECTION I = Thi AdditionalFinforn A: INITIAL PROFFERED PERMIT: You may accept or object to the permit. • ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. • OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the permit be modified accordingly. You must complete Section 11 of this form and return the form to the district engineer. Your objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below. B: PROFFERED PERMIT: You may accept or appeal the permit • ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new information. • ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD. • APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the district engineer. This form must be received by the division engineer within 60 days of the date of this notice. E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the Corps to reevaluate the JD. SECTION It - RE UEST,FOR APPEAL or OBJECTTIONS TO AN IN1117 AL PROFFERED VERMIrT REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record.) ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However, you may provide additional information to clarify the location of information that is already in the administrative record. POINT OF CONTACT FOR!QUESTIONS OR'INEORMATION: If you have questions regarding this decision and/or the If you only have questions regarding the appeal process you may appeal process you may contact: also contact: District Engineer, Wilmington Regulatory Division, Mr. Jason Steele, Administrative Appeal Review Officer Attn: Joyce Thames CESAD-PDO U.S. Army Corps of Engineers, South Atlantic Division 60 Forsyth Street, Room 10M 15 Atlanta, Georgia 30303-8801 Phone: 404 562-5137 RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day notice of any site investigation, and will have the opportunity to participate in all site investigations. Date: Telephone number: Signature of appellant or agent. For appeals on Initial Proffered Permits send this form to: District Engineer, Wilmington Regulatory Division, Joyce Thames, For Permit denials, Proffered Permits and approved Jurisdictional Determinations send this form to: Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Jason Steele, Administrative Appeal Officer, CESAD-PDO, 60 Forsyth Street, Room 10M15, Atlanta, Georgia 30303-8801 Phone: (404) 562-5t37 DUKE ENERGY. August 18, 2017 Ms. Jean Gibby US Army Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Subject: Duke Energy Carolinas, LLC Buck Steam Station Final Jurisdictional Determination Survey of Waters of the United States Dear Ms.Gibby: 410 S Wilmington St. Raleigh NC 27601 Duke Energy Carolinas, LLC has conducted extensive wetland delineation within the property owned at the Buck Steam Station. Duke Energy is providing the Corps of Engineers, with final surveyed drawings of the jurisdictional delineation, of Waters of the United States for the site located in Rowan county. If needed an electronic copy of the survey plats can be provided to you. We request that you review and approve the surveyed drawings as appropriate at your earliest convenience. Please review the packets and if you have any questions or concerns, please contact me at (919) 546- 7457 or steve.cahoon@duke-enerov.com. Sincerely, Steve Cahoon Duke Energy - EHS-CCP Permitting and Compliance CC: Richard Baker, Duke Energy Jeff Poupart, DWR �> DUKE ENERGY. August 18, 2017 Ms. Jean Gibby US Army Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Subject: Duke Energy Carolinas, LLC Buck Steam Station Final Jurisdictional Determination Survey of Waters of the United States Dear Ms.Gibby: 410 S Wilmington St. Raleigh NC 27601 Duke Energy Carolinas, LLC has conducted extensive wetland delineation within the property owned at the Buck Steam Station. Duke Energy is providing the Corps of Engineers, with final surveyed drawings of the jurisdictional delineation, of Waters of the United States for the site located in Rowan county. If needed an electronic copy of the survey plats can be provided to you. We request that you review and approve the surveyed drawings as appropriate at your earliest convenience. Please review the packets and if you have any questions or concerns, please contact me at (919) 546- 7457 or steve.cahoon@duke-energv.com. 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Quad: Lake Norman North NOTIFICATION OF JURISDICTIONAL DETERMINATION Property Owner: Duke Energy Carolinas, LLC / Attn.: Steve Cahoon Address: 410 S. Wilmineton Street Raleieh. NC 27601 Telephone Number: 919-546-7457 Size (acres): 1,400 Nearest Town: Sherrills Ford Nearest Waterway: UTs Catawba River and UTs Holdsclaw Creek Coordinates: 35.596922 N. 80.963458 W River Basin/ HUC: Upper Catawba (03050101) Location description: The project area is located on a tract of land (parcel 113s 4618 0494 5985, 4628 0106 6768, 4618 0296 2555, 4618 0286 7240, 4618 0286 3071, 4618 0285 0932, 4618 0275 7970, 4618 0275 5928, 4618 0276 3008 4618 0276 1101, 4618 0266 8175, 4618 0257 1365, 4628 1700 0538, 4617 0899 5953, and 4617 0889 6509) known as Marshall Stearn Station at 8320 East NC Hiehwav 150 Sherrills Ford, Catawba County, North Carolina. Indicate Which of the Following Apply: A. Preliminary Determination There are waters, including wetlands, on the above described project area, that may be subject to Section 404 of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). The waters, including wetlands, have been delineated, and the delineation has been verified by the Corps to be sufficiently accurate and reliable. Therefore this preliminary jurisdiction determination may be used in the permit evaluation process, including determining compensatory mitigation. For purposes of computation of impacts, compensatory mitigation requirements, and other resource protection measures, a permit decision made on the basis of a preliminary JD will treat all waters and wetlands that would be affected in any way by the permitted activity on the site as if they are jurisdictional waters of the U.S. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). However, you may request an approved JD, which is an appealable action, by contacting the Corps district for further instruction. There are wetlands on the above described property, that may be subject to Section 404 of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). However, since the waters, including wetlands, have not been properly delineated, this preliminary jurisdiction determination may not be used in the permit evaluation process. Without a verified wetland delineation, this preliminary determination is merely an effective presumption of CWA/RHA jurisdiction overall of the waters, including wetlands, at the project area, which is not sufficiently accurate and reliable to support an enforceable permit decision. We recommend that you have the waters of the U.S. on your property delineated. As the Corps may not be able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps. B. Approved Determination There are Navigable Waters of the United States within the above described property subject to the permit requirements of Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403) and Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. X There are waters of the U.S. including wetlands on the above described project area subject to the permit requirements of Section 404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. We recommend you have the waters of the U.S. on your property delineated. As the Corps may not be able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps. The waters of the U.S. including wetlands on your project area have been delineated and the delineation has been verified by the Corps. If you wish to have the delineation surveyed, the Corps can review and verify the survey upon completion. Once verified, this survey will provide an accurate depiction of all areas subject to CWA and/or RHA jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years. X The waters of the U.S. including wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on October 5, 2017. Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. _ There are no waters of the U.S., to include wetlands, present on the above described project area which are subject to the permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification. The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA). You should contact the Division of Coastal Management to determine their requirements. Placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). Placement of dredged or fill material, construction or placement of structures, or work within navigable waters of the United States without a Department of the Army permit may constitute a violation of Sections 9 and/or 10 of the Rivers and Harbors Act (33 USC § 401 and/or 403). if you have any questions regarding this determination and/or the Corps regulatory program, please contact David Brown at 828- 271-7980, ext. 4232 or david.w.brown@usace.army.mil. C. Basis for Determination: See attached approved jurisdictional determination form. D. Remarks: The waters of the U.S. (WoUS), for the project area, were verified on -site by the Corps on November 3, 2015. The attached Study Area Map, Figure 2, indicates the limits of the project area for this jurisdictional determination. WoUS for the project area are as depicted on the attached Welland Delineation Survey on Property Known as Marshall Steam Station, sheets 1-35, by McKim & Creed, signed by Randy S. Rambeau, Sr., NC PLS L-2520, on July 13, 2017. NOTE: Lake Norman (an impoundment of WoUS) was not part of the study area. It should be noted this feature adjoins the project area and is WoUS. Also, Sheets 18, 19, 20, and 21 note Stream 12 and Wetland I as "Jurisdictional Area is Subject to Section 404 of the Clean Water Act (CWA). Jurisdictional Area is Designated an Effluent Channel Under 15A NCAC .0228." Reference is made to the attached communications between the Corps and NC Division of Water Resources on August 16, 2016 and October 19, 2016. E. Attention USDA Program Participants This delineation/determination has been conducted to identify the limits of Corps' Clean Water Act jurisdiction for the particular site identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work. F. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B. above) This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed you will find a Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA form to the following address: US Army Corps of Engineers South Atlantic Division Attn: Jason Steele, Review Officer 60 Forsyth Street SW, Room 1 OM I5 Atlanta, Georgia 30303-8801 In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you decide to submit an RFA form, it must be received at the above address by December 4, 2017. **It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.** Corps Regulatory Official: 1 David Brown Issue Date ofJD: Oct 5,201 Expiration Date: Five years From Issue Date The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so, please complete our Customer Satisfaction Survey, located online at htt :Nco sma u.usace.army.mil;cm a x/f?=136:4:0. Copy furnished: AMEC Foster Wheeler, Richard Harmon, 4021 Stirrup Creek Drive, Suite 100, Durham, NC 27703 r r Applicant: Duke Energy Carolinas, LLC 1 Attn.: Steve File Number: SAW-2015-01412 Date: Oct 5, 02017q Cahoon Attached is: See Section below INITIAL PROFFERED PERMIT Standard Permit or Letter ofpermission) A 0 PROFFERED PERMIT (Standard Permit or Letter ofpermission) B PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D PRELIMINARY JURISDICTIONAL DETERMINATION E A: INITIAL PROFFERED PERMIT: You may accept or object to the permit. • ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the permit be modified accordingly. You must complete Section It of this form and return the form to the district engineer. Your objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below. B: PROFFERED PERMIT: You may accept or appeal the permit • ACCEPT: if you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of this notice. D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new information. • ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD. • APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative Appeal Process by completing Section I I of this form and sending the form to the district engineer. This form must be received by the division engineer within 60 days of the date of this notice. E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the Corps to reevaluate the JD. I EVRAPEAoiOBO>rllQNS' _S O1JON:0w REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record.) ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However, you may provide additional information to clarify the location of information that is already in the administrative record. }�� ' 1n�C36I�A : ,OR � [�C+ IBIS = R�6R11ilAaJftif If you have questions regarding this decision and/or the If you only have questions regarding the appeal process you may appeal process you may contact: District Engineer, Wilmington Regulatory Division, also contact: Mr. Jason Steele, Administrative Appeal Review Officer Attn: David Brown 151 Patton Avenue, Room 208 CESAD-PDO U.S. Army Corps of Engineers, South Atlantic Division Asheville, North Carolina 28801-5006 60 Forsyth Street, Room 1OM15 828-271-7980, ext. 4232 Atlanta, Georgia 30303-8801 Phone: 404 562-5137 _ RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day notice of any site invest* ation, and will have the o ortunit to artici to in all site invest* ations. Date: Telephone number: Signature of appellant or agent. For appeals on Initial Proffered Permits send this form to: District Engineer, Wilmington Regulatory Division, Attn.: David Brown, 69 Darlington Avenue, Wilmington, North Carolina 28403 For Permit denials, Proffered Permits and approved Jurisdictional Determinations send this form to: Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Jason Steele, Administrative Appeal Officer, CESAD-PDO, 60 Forsyth Street, Room 1OM15, Atlanta, Georgia 30303-8801 Phone: (404) 562-5137 outs TiRT1F10 MAT TICS COPY OF THIS PLAT TD lo N THE OElICiS awAR cY OF TTS ilr+�ccnoN or 4 aSEcCTION 04 OF THE CLEAN WATER ACT AS DETERMINED BY ME UNOERSI O; WETLAND ON AOS DAM UMM MERE 13 A CHANGE 4R THE LAW OR OUR PUBUSHED AMMICTION MAY BE DETERMINATION OF PTO OVERVIEW r EXMED FIVE YEARS FROM R95 DAIS. THIS DETERMINATION WAS MADE UTIUZING INE APPROff"IE REGIONAL 9"LEMENT TO THE O 1907 YAtsOAL" Dp3♦,w? 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PC. 49 wxARD OamoiiAON SURVEY PROJECT/ : 4032-0059 V CN PROPERTY WOW AS Di SV7R : RSR v N J'�LLr.LV c�itili�J / DRANN K.: CSS 7 R!L �MARSHALL STEAM STATION Feu U : �� 1730 VARSITY DRIVE OWED Br COMP. f : ViYlO1V-40820D59 SUITE SOD ST#Ei r : i6 OVA RALEIGH• NC 27606 DUKE ENERGY CORPORATION TEL:(919)233-8091 DATE {LARC1130. 2016 SCALE F-1222 MOUNTAIN CREEK TDKNSHIP CATAWBA COUNTY NORTH CARMWA DWG. 0: JOB FOLOM '1105 CERFFlES THAT TNS COP DEPICTS TN# BOUNDARY OF IN OF RUE CLEAN WATER ACT AS ON THIS DATE UNLESS THERE I PUSUSNLD REGLI ATIONS- TN{S i1RISOICRDN MAY BE RIM W EXCEED FIVE TEARS FROM 7NIS NG THE APPROPRA 79BT _ 0604M in MANUAL' A-ULL,o• lb . S Av3-Zo L RANDY S. FLAMBEAU. Sit. PLS L-2570. CFRTFY THAT TINS W WAS DRAIN UNDER MY wPERMSION FROM A FE]D SURVEY MAUI UNDER MT gjIVtM20N: TIMS MAP DOES NOT CONFORM 70 G 1 47-30, AND IS NOT NTENOED FOR RECOROATIOR, DA7ES OF SURVEY VOM FERFO MED BETWEEN 02/20/19 ATEI 03/09/2016. & L, ,lam-SL: Y13fn 11 SCALE 1' -50 N 6842szTB` E 1418381,}8` 0 25 50 too ISO N l�LLVl(.7 t .1� 1730 VARSITY MVE SUITE 500 RALEIGH. NC 27606 M-, (919)233-6091 F-1222 STREAM 1 N .w 4- O 2 o_ U 0.14 )2!a RD vclmn MAP NOT TO SCALE LECEND W-104 VXTLAND FLAG CALCULATED POINT O F10N PIPE FCWrO MCILAND/STREM FLAG ASH BASIN LUIS PROJECT LAFTS -SA-000T 24' STREAM TAKE I1UDE Lamor1AE WETLANDS 6S.Ii-SBSTM.M W-54-MM triY-RITKs' 6-SA-a= BYsr -.aar w r-SA-aom I i I I I I �I ENERGY C OL1US LLC I JI a I i I I i i PRO.E:CT / S 40H2-GOS9 ON PROPERTY XNORM AS LNLANM BY:JSS d ALL FOL MARSHALL STEAM STATION D ex. I cian DNPED 87 COUP. FILE : VR4O1-40820M OF 3S DUKE ENERGY CORPORATION T OATS: MARCH 30. 2016 SCALE 1-650, MOUNTAIN CREW TOBN90P CATANGA COUNTY NGRTN CAROLINA p :JOB 'TN;S CERTIFIES rMT 1105 copy OF m PUT ACCURATELY STREAM 12 DEPICTS 1NE BOUNDARY Cr THE AWM CTIOG OF SECTION 404 OF Tff ON NS TE' "IDS"�E I�Ra�E Of TH LAW OUR WETLAND "Q" pUBUSM AIRISDICTION M'A1� TWA ON PORN % PERIOD MOTTO " " EXCEED FIVE YEARS FROM 1195 OATS THIS DETERMINATION WAS WETLAND C C G TIE APPROPIOATE RET30NAL SUPPt1MtNT TO THE WETLAND "BB" a 19a CORPS EN S DELOUEATIOM MANUAL.- (TITLE) (DATE)____...'t..... `a1�11I.a.�`t+ CARD .. �,�}� z I. RANDY S. RAwXm. SR. PLS L-2520. CERTIFY MAT TI96 MAP WAS DRAIN UNDER MT SUPERMSIO/ FROM A FIELD SURVEY MADE Z, rill UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM M C.S. SFA 47-X AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 0I/29/19 AM 03/M/2018- L-20 co RANDY 5 AMQEAU SR, F S L-2520 DATE v- WEILAND WETLAND TABLE POINT ! LA11TU0E LONGITUDE YFE(LAI1D5 70 33'39'SU• -407T3 r W-0-mi 249 j3wn • - , 39.0• W-101-m 230 33W=I- - WML3' W-10` O= 2UA DS ske, -wv3w MF-w-013 252 33 34-l' -WW'3Lr i-M-914 233 MW34X -F0ime K-00-04 234 33aur -wsmr W-N9-tri3 253 lrx- 3r -W1r39.4- W-m-w 239 35997iC -9 ., N r W-91-M 257 3S3L330- -801m, W-M-ON zo 2F351%23P -907rmr YF40-010 2" 3m Ar -WSFA9' w-WII-ax 250 2rm3t1- -mr39.9- MR90-= 291 3370"AD- -WW 7&r W-99-00{ 202 3S799T1r -W7r39y I WF-+a9-m WETLAND TABLE POINT / LATITUDE LONG17UDE WETLANDS an 13!'.M'3L4• -psr40Ur W--W)..IOU 710 I 3376323- -W3r46Y M-9D-OD: 2n 33-M'SU -9asr.Lr �F-w-mrsC-003 MCKIM k CREED PT/ T NC GRIC(NAD03/11) N BA4252.76' E 1416301.16' N/F OUKE ENERGY CAROLINAS LLC OB 2430, PG. 338 259- WF- WB-DOG 252 wF--W9-007 795 µ 2832153 31'E � WF-SC-DOT WETLAND -CC' Wr-FIQ- AREA . 0.01 ACRES 270J WF-WO--OD2 WF-SC-004 i1RISDICTIONAL AREA IS &M ECT- TO ST:C11014 404 OF THE CLEAN WATER ACT (CWA)..ACTIONAL AR��E AREA E� �A;ID �1:}C'fLOLu t � S DUKE ENERGY CCARMWAS LLCM SCALE. 1' -50' 0 25 50 100 , RD %MMITY MAP NOT m SCALE LE" W-105 RETLAND FLAG / • CALCULATED POINT 0 Sam PIPE ram ♦ WETT.ANV/ST M FLAG -- ASH BASIN (.POTS PROXCT LJMUTS 24a _ IMF-WB O01 r250 W -W9-0D3 "` W W 2S7 ''wF-w W W W W L! y 141 b +b _252 WF-WI3-0 WETLAND 'Q' t1EA + 04 ACRE �v 254 y `WF-WB-D13 •L I _IBo vf-WB-009 �_267 IMF-WC-DO3 WETLAND 'BB' 6 w�_iuu AREA - O.OI ACRES -wC-O05 WMAND -RR' WEn,VM TABLE POINT E LATITUDE LONGITUDE %n.AND5 n4 3r59�z9- -w�r.ac is-9c-ml-sc-993 253 3579122.0• -WSr" aF-/10-m 349 33!W%U' -W3r3LIr Y-lC 001 20 351mur -6013,34r +w-*C-m 3" 35XUV -003r41W w-W-003 Wf£T ld WETLAND aa#KATILN swvEr t , 1► Fi1�j/jA 7{ r�/�77i''L�1"1 ON PROPFXTY KNOWN AS y► MARSHALL STEAM STATION 173G VARSITY DRIVE OWNED Br SUITE 500 DUKE ENERGY CORPORATION RALEIGH. NC 27606 Ta-(919)233-8091 DATE AURCH 34 2016 SCALE 1'-30' F 1222 MOUNTAN CREEK RDWNS10P CATAWBA COUNTY NORTH CAROLINA 4N>a2-aa59 RSR i VRFIO RL! vwlm-4oaznesD T8 OF M 'TNS CERT6IES THAI7MS COPY OF THIS PLAT ACCURATELY STREAM 2 004M THE BOY 1.0414 OF THE 116SDKT10N OF SWIM 404 OF /HE CLiAN WATER ACT AS DETE MIK-0 BY IK tND0151010 ON U65 DAM UHUM TNERE IS A CHMM w nX LAW OR OUP PUBUSHED REGU AMML IN$ atTEAYWATION OF SECIM 404JURISDICRON LAY 6E REMD UPON FOR A PEF6W NOT Int1tCOMM WETLAND"R"LO3�0 FIVE YEARS f MCM WS DATE. 1H15 DETEAIFNATWN WAS 4ADE W X-FROPAIATE REGIONAL "PUMW TO TIC W LAND S t f]ITiNFFS oELwEAnaf wNUAL,*WETLAND "T,t;N :lm"c'"toc 4�I`c. WETLAND"U"1� WAS D My UNDER NT SUPERN51p1 IRON A FIELD SURVEY MADE VICINITY MAP 1#IDFR L1Y 51i�ERQ190k 7NI4 MAP DOES NOT CONFam TD GS NOT TO SCALE 47-30. A!q 6 NOi RITfLmEO FOR Saco DATES OF LEGEND SURVEY VM PERFDRUED BETOCEN 02/29/16 AM D3/09/2016. 270 l-w-sC-OO6 W-103 WET ANG FLAG / GrCfG!! % r %7 SdZTlO • CALCLRvw PCMr RANDY s. NOAW SR. PLS L-2620 DATE 277 ygFr Fg o IRON PIPE FOUND WF-SC-009"� ♦ KMAND/STREAIM FUG ASCU BASWd U LM wE-oza�21 W ae-oo1 --- PRO.ECT LAAIT5 2 SEA! 9 AREA - 0.01 ACRES \ m N p 2� - -ref-003 DIRGE ENERGY CARMNA254 S LLC -WE C 2611 001 DB 24A PG 333 ypyS J 1VF-rE-o0r�-oto-'\2113 W-002 WETLAND TABLE POMT j LAn UDE LONGITUDE YIETIANDS rn 7176'7na• -e6srat' ,r-�r-ml rn --,n Y -6osr4er �P-a-6a i10 m65ar -6osT'4�T• w�caw iN ww.%e -IW4LT' M-11E-W{-SL-ONt AREA - M05 ACRES 4rn a4m •r WETLAND TABLE POINT I LATr UDE LONCrRAE WETLANDS 2/1 VW4L6• -611ST3Lr r-w 6w 113 WX4Lr -WlN00' M-10-0n 213 n-wor -enrur r-110-001-w-mi 2" 2FW4L1• -OPT:SC W-10-004 20 XV491' -8"r363' 1r-w-ms-6e-me WETLAND TABLE_ POINT f LATITUDE LONGTRDE NETLMOS 30 3m47r -IgS75LC W-04-OM 307 3=473• -f0577Lf W7-04-M 304 33w43r -flair" M-i1N-= 3W "4LI —066Y3LC W YAI-004 306 WM4Lr -6nr3Lr 1�w11-00}•6C-aT N/F DUKE ENERGY CAROL►IAS uC i �` Vr 294 .014� 293 y D02 2912 -003 y 105 w-006 \ S \ 7M:TL.ANO '1' \ D07 AREA - 0.13 ACRES I WELL ND -SC-013 WEILANO TAKE LAMME LONGITUDE WETLANDS 3"'S S -ft., Iss' W-m7 SrxKr -SBTMr s-om REI im-Air -Mnr" Wr-601 33Y'4Lr -mosmur IF -MO 1m4w -6037*3w 6r-6053530�4LS' -605i76.r W -M 3l76'4u' -1D1rA.r 1r-607 MD 3rW4&r I -6VSTAY K-000 i11 ane4l7' -Rlr3Lr W-00 1w 367P44.r -_w%r3Lr W-010 3a/ 3M4Lr -Gnl'J .r --01T 302 TIONAL AREA 15 StJ9JMT YYF-Mi-O02 7D SECTION 404 OF THE CLEMI 304� W WATER ACT (CWA). ANSUCIMAL NF-WH-003 AREA IS DESIGNATED AN EFFLUENT CWIM WM ISA NCAC Mn WETLAND 'U' AREA w 0 07 ACRES STREAM 112 1342 L.F. AVG. WIDTH 24'-60' SCALE- 1" -50' 5%77 FA 310 25 30 1 0 t wF 0D2l Rf7UND DELOSAAON SW EY PROECT 400-0059 11U1 1\i IA `3�i.:4+1i1! ON PRaWER1Y KNOW As � f iss 0RA1W By t I X ALL MARSHALL STEAM STATION nao 8K. L C1037 1730 VARSITY DRIVEE ORNED er COW. FIE c VWIM-4082WSO SU ITE SHEET � I9 OF � H. NC 27606 DUKE ENERGY CORPORATION TEL''(919)233-9091 DATE: MARCH 3D. 2016 SCALE 11.sD- F-1222 - MOUNTAW CREEK MMSNIP CATAMA COUNTY NDRTN CARO<1NA Dwc. F 'TIPS CERTIFIES YNAT TWS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF 1HE JJFWMICI10N OF SECTION 464 OF THE CLEAN WATER ACT AS KIERIIZ ED BY THE UNDERSCNED PUMJSIEDATE AEQJLATIDMSR 7123 OEIERYCIATION OF SECIM 404UR A R:SMC710N MAY BE RELIED UPON FOR A PERIOD NOT TO E3CEED n%C YEARS FWN THIS DATE. 71I3 DFrUMalATION WAS u ' THE APPROPAUI [ZONAL SUPPLE37QTT TO ihi STREAM 12 N WETLAND "V" WETLAND "W" Z G SLANTING B U IRD v'« fi A4*r+ "'ZCS� 'S —07 � �Z— z E wO caDKmKmTY MAP LRANDY & W'AS DRAWN UNDER My sLq AGSM FROM AA I [1D SO4EYM OE NOT TD SLICE UNDER MY SUPERL1S1DN, THIS MAP DOES NOT CONFORM 70 C.S 47-30. AND IS NOT INTENDED FOR RECORDATION- DATES OF SCALE 1' -50' LEGEND SURVEY WERE PIRFORum BETIIEEN 02/n/15 AND E.7/09/2D11L W-105 WETLAND FLAG IF 0 73 SD 160 1 • CALCLR.ATO PONT � RANDY i WgAU - PLS L-2= DATE s�•r,'s e CR'f0� 9k27X = y 310 WF3WOS-OO2 _ , SEAL q WF-Wi- :0 309••, �y y J Wr-YA-aos y O} tG? vF-WI-OD1-SC-OI9 S, y WEIL.ANO 'V' JN;7 "ONAL AREA IS SUB.ECT AREA - M39 ACRES TO SECTION 404 OF THE CLEAN 31-- y ARENA ,S ``NDESIGTLATED AN EI Em WF- M7-DO5 DUKE ENERGY CAROLINAS LLC STRFAL '12' STREAM TABLE POINT ( LATITUDE LAN ITUOE WITUXOS 3D XrM'$ .r -9O9r4a? 11F-S-M 3L4 357L•Sur -104r4or RWC-OQI-'i-cm Dt S =-4.r -073r4ai• r-vD-003-sr.-'m m »•3r31.r -m's7�ar �F-sFuo4 37] 71i1'71'J' -5ASr4ar Ir=-am5 rrs a3relx -w3r4ar Yr sm-lm m 35wau, -097r4a3• r-3C-cw re nwst.r -enr4ar ar SC-m m um-ar -ms74a1• W-=-= •Lf JrW41i0• -m7r35.r w-m-on 3t4 3r3t'4ar -m7r4alr %r-Sc-m m 3r3F4Kr -BDTMr r-WO-DM-SC-RI 3r7 3TW4LI' -m57'3o7• r-W-003-SFa3 3!0 MW41r -W r3W W-SC-M4 301 3r3L•4at' -KMIO3- YF-SC- hs 38 WW4Lr -170'311 • r-UN-OOs-rO-aT 3w 35Y4Lx -to7r31J- 1F--SC-OU 30 33MOOr -IOjr3Lr r-W-m1-SC-Mil, 313 3731'411- -11IM-Ur VAZ. aS0 MI Snf43r -WSr3a3• r-WC-az1 319 3l3F43r -LQ4T'nx r-SC-tin 3D 3r3C4LC -9037W.1' W-SC-= 3" 3Tit'4zi' -WWW- • WF-SC-m >v 3S7T,3r -OOSY37D' LF-SC-m 33L 3r31.41x -IWW-Ar r-*t-4G3-A 30 337t•41.r -mW%r r-SC-am-A 330 WW41.1' -m97'35r '.F-sC-Ooo-A 331 3113r4ar -m37ur WF-SC-031)-A-E110 m "tar -IOSr3L4• w-s-=-B 3" 3rW4Lr -=r57 X r-SC-OZ" 340 !nL•4Lr -W0710 TFSC-07/-9 341 xw4i.r -ww'xr YF rC-SE-at71 343 35-irm r -w%rx7• r-SC-630-9 343 3?3T4W -m4r3ar r m-631-0 NS 357L•42.r -wwwar r-9e.az] N iVS11V 4yEf.:1J-/ 1730 VARSITY DRIVE SUITE 500 RALEIGH, NC 27606 TEl (919)233-8091 F-1222 CHANNEL UNDER 15A NCAC .022a NIF DUKE ENERGY CAROLINAS LLC 315 WT-SC-020 317 315 �11f WJ-001 WC-02t WETLAND "V AREA 2• AREA - 11.02 ACRES y 320 1/11wF-WJ-002 41 O am PIPE FOUND WE LANO/SIREAM FLAG ----- ASN BASIN UNITS — — — — PRO ECT LAM -.w WEiLAN0 TA9l.E «.. 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MARSHALL STEAM STATION D77m or DUKE ENERGY CORPORATION DATE MARGIN 30. 2010 SCALE 1'-50' MOUNTAIN CREEK TOWNS9P CITARBA COUNTY NCRTN CARWAA 337- .1- TYF-W1-072 339 -SC-D29-B 336 �vw SC- WF-R1-0131`.�, y Y1F-5 314 WF-YA-D14 / • 4081�0059 R • R5R Y : JSS A RLL L : C11237 1 : VW701-4082O050 f : 20 OF 35 -DSS CERIM THAT TIVS mPY OF Tl43 PLAT A JRATELt DMTS THE BOUWARY OF TWE ,-04SWCTM 4F SECTION 404 WETLAND „� „ N OF THE MEAN WATER ACT AS DE""01 D 9Y THE tMOCRISM1m TIN 11R3 OATS. U1AEn ROM LS A a,AVGE IN THE LAW OR OUR S PNf 91M REaIL VOM 1M5 OETERMINAIION GF SECT" 404 ARSNCTION MAY WE ROJED UPON FOR A PEWCO HOT T4 a EXCEED FIVE YEARS FROM TWS 4AlE. THS OCTIMU NATCN WAS MADE U W APPROPRIATE REGIONAL SUPPLEWENT TO THE 9TE 1E87 S,D"FLINEATM MANUAL. x G (RAW) m (aTLq i c4� 9 A+rnNG Ar v-A YD'. S AZ -- 20 I S--.L> ir2 Z RD EPKC n SAP S. HOT l0 SCAB ►AS ORAYWN UN= Y SUPFRWSIOH fROM FRO SURYEY MADE UNDER MY SUPERWSNWk MS YAP DOES NOT CONFORM TD G.S. 47-30. AND 15 HOT INTENDED FOR RECORDATION. GATES OF S MVEY WERE POF WYED 9E7WFr11. 02/29/16 AND 03//09/2014. RANGY SgXAUKAU STL. PLS L-7520 DATE CARo LECENO 2 SEAL. W-105 RE'TLAND FLAC f 7o L2520 y • CALMAATED FONT 0 Oft PIPE FOUND Q}, WETIAMD/STREAM FLAG ---- ASN BASIN LIM175 .---- PROJECT UUMNTS WETLAND TABLE PMT r LATI7UOE I LONGITUDE WETLANDS TW mlieli r -wzrua• w-WA-m 11S! yT'7a'34.1' -RD3r3Lt• M•WA-GC) ass ssxur -a0zrsla• WF-WA-mR MIT z=u4• -WmLr W-wa-c a a» srsrar -Swwur Y-WA-= sro arTrur -wwnl• vo�+u-4w SR UW U.r -WW'3 r 4F-WA-M sea ssaar -wwwr r--WA-m4 W3 mazer -wzrar w-WA-ma s,R Ssa• �ns -wyra�.r r-WA..Tt s� >s N/i DUNE ENERGY CAROLRJAS LLC 554 WF-WA-006 xsxX -waY ar r�Wr 74 555 . WF—wA—oa7 \WO 363 WF-WA-005 / . • • ••wEiuwo 7• se?-004 7... .-WA-009 WF-WA-005• IW-WA-002 SCALE: 1' -501 ... .../ 581 l •. • WF-WA-TIE ` 559 WF•'� -WA-001 'Q \ JURWS1 =OVAL AREA 15 SUBJECT 'r TO SECTION 404 OF THE OEM ^� WATER ACT (CWA). 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C01SHM I J. : B OF J5 0059 SUITE 500 RALEIGH, NC 27606 DUKE ENERGY CORPORATION ALEI TEL:(919)233-8091 DATE MARCH 30. 2010 SCALE 1'-50' F-1222 MOUNTAIN CAEEK TOWNSHIP CATAWBA COUNTY NORTH CAROLINA DWO WETLAND "AA" LS STREAM 14 m c PRELIMINARY PLAT 9I NOT FOR RECORDATION, CONVEYANCE, OR SALES e SLAMG BR U RD 2 N153 £ E% VICINITY MAP T 10 sxAA-r SNlfT1d N/F Ji 7250 DUKE ENERGY CAROLINAS LLC DO 2001, PC. 1015 i43 444 PO 39, PG. 52 'Do CER11M THAT 7M COPt OF TNIS PUT ACMIRAUIT WF-0-17 WF-WD/16-C-15 CEPCM Tn flOomWY OF ME A*bS rAN of SECTM 404 OF 1M CLEAK WATER ACT As OETC8M6 ED BY Tex WDER3tCNED • ON M5 DATE. UN= DIRE IS A C„AM= INTK tAw OR CIA N/F STREAM / 14 PUBLISHED RE61"11011@ % TWS Oclu IAT10N of SECTION 94 JYRI KtfOW RAY BE RELIED UPON MR A PERIOD NO' 70 OWE ENERGY CAR0LWA5 LLC 2163 LF. AVG. NOTH 3W E110EED MI TEARS FROM TINS DATE. 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PC 32 11" ANDS -r 91E7LAN0 TABLE POINT / LATITUDE LONGITUDE IAE7LANDS 495 mr167• -9DST04r r74 4r 3f7Y0r.9' -Ws7mr r-F-9 487 srm", -BQSrms• w-9 me 1!mr -w-grmr 40 337me -9LT3r0As• rr-r-a 49R 3777vw -947row 3F-r-s 4" 39sr16i -993MV ► -F-2 402 357799•Y -607T33!' r-r-9 W 7377OIS -997YO30• r-r-w 4119 9s7'70.0 -Mmr C;iJ Se WETLAND "AA" N WETLAND "Z" n STREAM 14 Z > O SLANTING c2 V RD z NC HYn t5� E VICIFBTY NAP NOT TO uvm w-105 NERAND FUG 0 CALCULATED P09JT O IRON PIPE FDUND } RIETLAND/STREAM FLAG ---- ASH 9ASW LIMITS — — — — PRQECT ES47S 'T94 CERIM THAT /1IIS COPY OF THIS PLAT AUCIRA7FIY DEPICTS THE BOUNDARY OF YHE J<IRLSMCTION OF SEU:TRIN 404 OF THE MEAN WATER ACT AS DETERMINED BY THE-L"XIISICNO ON TMS DATE 1AYLE55 711UE 13 A OMNGE IN THE LAW OR OUR PUBLISHED REMILATIONS. 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PLS L-2620, CERTIFY THAT iM5 NAP WAS DRA1V1 IRAER MY SUPERVISION FROM A F1Ef3D SURVEY MADE UNDER MY WPVtMft THIS MAP DOES NOT CONfORY TO G.S. 47-30, AND B NOT INTERO1D nA RECCRDAnDN. DATES OF YRVEY NEW PERFORMED KTAM 02/29/16 AND 03/0/201a AM-, 7 i '3L . R40EM SR, KS L-2370 DATE CARPI a sp .. ue.. c25M a sua R WETLANO 't' AREA - 0.13 ACRES N/F DUNE SCRGY CAROUNAS LS.0 08 2001, PG. 1018 P9 39. PC. 52 � J 1 I I SCALE- V -50' O 2M 'SO 100 1 v 1V CM4&CREED 1730 VARSITY DRIVE SLXTE 500 RALMGH. NC 27506 M-(919)233-8091 F-1222 STE SLANANG LEGEND w-m TIETLANO MG f 0 ETR CALATED PANT O ARON PIPE FOJND ♦ RETLANO/STREAA, FLAG — .— ASH BASIN LWnS -- PROXCT LAWS WE11A1W TAME XNT / LATITUDE LONGITUDE WETLANDS AO: nXnILr -WW49LC W-C-Is11 s11s 333, Xr -1111$IQA• W-C-Of101 s10 3lYY1T.s• -110w4w M--L-Y SII 1521YT.s' -sP76.1sf' 11F-G-3 313 =in", _ww4 a" W-4-4 O3 3S3T1Lt'I -E076'H.Y I IF-t-s Oil 3377Ts.1- I -80W49,1' I W-C-s N/F DUKE ENERGY CAROUNAS ELC D8 2001, PG. 1018 P8 39. PG, 52 ON PROPERTY KNORN AS MARSHALL STEAM STA 77ON ONNFD BY' DUKE ENERGY CORPORATION DATE: HARM 30, 2016 SCALE 1--W' Al"TAM CREEK TORNSIAP CATAWBA CUMITY NORTH CAROLINA J : RSH 0059 Y :.w d RM L : CTO37 £ : V8701-10620059 /:33OF-U -US CD17*= THAT THIS COPY Of THIS PLAT ACCURATELY Down THE BOUNDARY OF THC JINSDICRON OF SECTIDN 404 WE T� A N D " H „ N S OF TB CLEAN WATEA ACT AS DETU&MED BY THE UNDEASt M CH T45 DATE LV& SS THERE IS A 04ANGE N THE LAW OR WR pUBUSlm FtMA.ATIC.YS. IM 0CY00 1AtM Or SECRON 401 A MSDC2W MAY BE AEUED UPON FOR A PMW HOT TO o DCW FlAE TEARS FROM DO DATE. H9S DETETOINATION WAS MADE THE APPROPRAW W AMAL SfPPIDAW TO ME < 9 yyC C 1967 EHGNF€RS oQ.YiA� (NAYE1 9 SUWIING RD 4 RANDY & RAWMAL YL. PRS L-2524. CER14Y THAT 7WS YAP � CAR D� NOT TD ALE WAS DRAWN UNDER My SUpF VM- FROM A FIELD SURVEY MADE �'� UNDER MY SUPERNsm T1aS YAP DOES NOT Cawam TD C_. . -. 47-X AND IS NOT NTOM OR RECOROATIDN. 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IxAESS TN X IS A CHARGE NT TTQ LAW DR OUR PMt91m RrEM"TIONS, THIS DETER"ATION Or SECTION 4114 AObSMCIgN MAY BE REUM UPON FOR A PERIOD HOT TO n Exmm mR: won FRom Tws DATE, im oEn;RMMATION WAs o0 M 1W APPROPIKATE REGMAL U PPLELIENT TO THE i ENn. S 3CMAIMIDJOIATKIN ANAL-' v _ 1 CARD! I. ROOT L RAM. SR. PLS L-nK CERTIFY THAT THIS MAP B,w WAS DRAWN UNDER MT nwotVl9oN FROM A FRLD SURVEY MAx LINDER MT St1PERMSMI THIS MAP DOES NOT COWMM TO GS 47-30. AND IS NOT INIDI b FUR RECORDATION. DATES OF 2. SURvEY WERE POW13FIMm BETWEEN 02/21/16 AND 03/09/201L SE& fawAs uric (l-� y /�% L-2520 RAIMY S FAMBEw SR. FU LFU L25" MATE S s1E RD f l ,RtP«n KAP NOT 1D SCALE W-103 µ£-LAND FUG j • CALCULATED POINT O " POPE FOUND µfnAND/51REAM FLAG ---- ASH BASIN LAUTS — — — — PRO.ECT Lsom BASIN SN A/ 597 !•Y! W W `WP-H ! y W W �Y -Y �Y W .Y ! , W W INEiu"m W W W W AREA - 1.33 ACRES y y y `59'3 y y y N!F'-11 W i y SCALE. 1. sue, ��-�� 0 BEER 1111L 25 SD J� �.L�L'i1=+V ✓ 17�1 1�ilY1V 1730 VARSITY DRIVE SUITE500 RALEIGH. NC 27606 TEL• (919)233-8097 F-1222 WETLAND TABLE PONT t LATITUDE LOHCI7UDE µElIIINOS m arxa3s• -ersrnr K-osA4 lA3 ssxmr -AtrSrlLr K-OAAI lei I u~ :m ltx K-Leis 117 13maLr -w5rt2.r or -am 171 13maLr I -wmme K-OSAT m 35%VLr -tlrW"X K-000A 173 b7Ab4.Y -tQSNIM40 K-d6r3 174 3s' A'OLr -TW7r17.r K-OSAL 173 38'3AVW -AwmftY W-03AA AAA 373tux -rrm4lx If-" sr 37 me -wsnix NZ-0 sm mrwar -Aesrtar tr-II m uwwr -wwlar " "2 3rwmr -KWVLr K- 4 U3 3rM'OLr -LOIAbL.r M-M Aso 3Sw r -wwnr r-w 3.s u-mar -wwmr K-« sw 33"3mr -wso* x K-R s07 WMILr -Swwmr K.H-me no .3sarWx -&75nix K-N-TIE m I 3S3row -wwtir K-N µ -LAND BELW-47X W SURVEY PROJECT / t 4492-0059 ON PROPERTY A7JOTLN A5 DRAWN BY: M & RLL MARSHALL STEAM STATION FIELD W- _ C1a37 owim or COLD. M : YW101-4DB20059 SHEET I : JS OF M DUKE ENERGY CORPORATION DATE: MARCH 3L( 2DIe SCALE F•-.W MDUHTAW CREEK TOITHSWP CATAWBA COUNTY NORTH CAR"A I DWr : Uoe M APPROVED JURISDICTIONAL DETERMINATION FORM U.S. Army Corps of Engineers This form should be completed by following the instructions provided in Section IV of the 1D Form Instructional Guidebook. SECTION 1: BACKGROUND INFORMATION A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): Oct 5, 2017 B. DISTRICT OFFICE, FILE NAME, AND NUMBER: CESAW-RG-A, SAW-2015-01412, Marshall Steam Station 1D C. PROJECT LOCATION AND BACKGROUND INFORMATION: State: NC County/parish.+borough: Catawba City: Sherrills Ford Center coordinates of site (lat/long in degree decimal format): Latitude & Longitude in Decimal Degrees: 35.596922 N, 80.963458 W Universal Transverse Mercator: Name of nearest waterbody: UTs Catawba River and UTs Holdsclaw Creek Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource (lows: Lake Norman (Catawba River) Name of watershed or Hydrologic Unit Code (HUC): Upper Catawba (03050101) ® Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request. El Check if other sites (e.g., offshe mitigation sites, disposal sites, etc...) arc associated with this action and are recorded on a different JD form. D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY): ® Office (Desk) Determination. Dale: October 5, 2017 ® field Determination. Date(s): November 3, 2015 SECTION H: SUMMARY OF FINDINGS T RHA SECTION 10 DETERMINATION OF JURISDICTION. There Are.n'o "navigable ►raters ofthe U.S." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CF'R part 329) in the review area. [Required) [l Waters subject to the ebb and flow of the tide. (] Waters are presently used, or have been used in the past. or may be susceptible for use to transport interstate or foreign commerce. Explain: B. CWA SECTION 404 DETERMINATION OF JURISDICTION. There Ari -waters ofthe U.S." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required) Waters of the U.S. a. Indicate presence of waters of U.S. in review area (check all that apply): t j TNWs, including territorial seas ® Wetlands adjacent to TNWs ® Relatively permanent waters= (RPWs) that flow directly or indirectly into TNWs Q Non-RPWs that flow directly or indirectly into TNWs ® Wetlands directly abutting RPWs that flow directly or indirectly into TNWs Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs Q Impoundments of jurisdictions) waters Isolated (interstate or intrastate) waters, including isolated wetlands b. Identify (estimate) size of waters of the U.S. in the review area: Non -wetland waters: 9,999 linear feet: 1-6 width (11) and/or acres. Wetlands: 7.37 acres. c. Limits (boundaries) of jurisdiction based on: 198716ilintioii,Man6! Elevation of established OfIWM (if known) Non -regulated waters/wetlands (check if applicable):' 0 Potentially jurisdictional waters andlor wetlands were assessed within the review area and determined to be not jurisdictional. Explain: ' Boxes checked below shall be supported by completing the appropriate sections in Section III below 1 For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally" (e.g, typically 3 months). ► Supporting documentation is presented in Section III F. SECTION IiI: CWA ANALYSIS A. TNWs AND WETLANDS ADJACENT TO TNWs The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. if the aquatic resource is a TNW, complete Section III.A.I and Section III.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2 and Section iII.D.1.; otherwise, see Section Iii.B below. 1. TNW Identify TNW: Summarize rationale supporting determination: 2. Wetland adjacent to TNW Summarize rationale supporting conclusion that wetland is "adjacent": 0.5 acres of wetlands are within the active tloodplain of Lake Norman (Catawba River), these wetlands have overland flow to the TNW and during high !lows in the lake/river the wetlands are inundated by the high flow. Wetland hydrology is enhanced with adjoining TNW via normal down gradient flows and periods of high water. B. CHARACTERISTICS OF TRIBUTARY (THAT 1S NOT A TNW) AND ITS ADJACENT WETLANDS (IF ANY): This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps determine whether or not the standards for jurisdiction established under Rapanos have been met. The agencies will assert jurisdiction over non -navigable tributaries of TNWs where the tributaries are "relatively permanent waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3 months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round (perennial) flow, skip to Section iIi.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow, skip to Section IiI.D.A. A wetland that is adjacent to but that does not directly abut an RPW requires n significant nexus evaluation. Corps districts and EPA regions will include in the record any available information that documents the existence of a significant nexus between a relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even though a significant nexus finding is not required as a matter of law. If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is the tributary, or its adjacent wetlands, or both. if the JD covers a tributary with adjacent wetlands, complete Section 111.8.1 for the tributary, Section III.B.2 for any onsite wetlands, and Section II1.B.3 for all wetlands adjacent to that tributary, both onsite and offsite. The determination whether a significant nexus exists is determined in Section III.0 below. Characteristics of non-TNWs that now directly or indirectly into TNW (I) General Area Conditions: Watershed size: Ptc Drainage area: )?iek Lts Average annual rainfall: inches Average annual snowfall: inches (ii) Physical Characteristics: (a) Relationship with TNW: ❑ Tributary flows directly into TNW. ❑ Tributary rows through #WW ist tributaries before entering TNW. Project waters arc IFI* gist river miles from TNW. Project waters are PWMW river miles from RPW. Project waters are Wyk aerial (straight) miles from TNW. Project waters are i'tecs is! aerial (straight) miles from RPW. Project waters cross or serve as state boundaries. Explain: Identify flow route to TNWs: Tributary stream order, if known: ' Note that the instructional Guidebook contains additional infomtation regarding swales, ditches, washes, and erosional features generally and in the and West, ' Plow route can be described by identifying, e.g, tnbutnry a, which flows through the review area, to flow into tributary b, which then flows into TNW. (b) General Tributary Characteristics (check all that aeau. Tributary is: ❑ Natural ❑ Artificial (man-made). Explain: []Manipulated (man -altered). Explain: Tributary properties with respect to top of bank (estimate): Average width: feet Average depth: feet Average side slopes: P- Primary tributary substrate composition (check all that apply): ❑ Silts ❑ Sands ❑ Concrete ❑ Cobbles ❑ Gravel ❑ Muck ❑ Bedrock ❑ Vegetation. Type/°/b cover: ❑ Other. Explain: Tributary condition/stability [e.g., highly eroding, sloughing banks). Explain: Prescnce of run/riffle/pool complexes. Explain: Tributary geometry: Pick List Tributary gradient (approximate average slope): % (c) Flow: 'tributary provides for: Pic_"A Estimate average number of flow events in review arca/year: LR B Describe flow regime: Other information on duration and volume: Surface flow is: f @CX* Characteristics: Subsurface flow: ll'iek . Explain findings: ❑ Dye (or other) test performed: Tributary has (check all that apply): ❑ Bed and banks ❑ OHWM6 (check all indicators that apply): ❑ clear, natural line impressed on the bank ❑ ❑ changes in the character of soil ❑ ❑ shelving ❑ ❑ vegetation matted down, bent, or absent ❑ ❑ leaf litter disturbed or washed away ❑ ❑ sediment deposition ❑ ❑ water staining ❑ ❑ other (list): ❑ Discontinuous OHWM 7 Explain: the presence of litter and debris destruction of terrestrial vegetation the presence of wrack line sediment sorting scour multiple observed or predicted flow events abrupt change in plant community If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction (check all that apply): High Tide Line indicated by: Q Mean High Water Mark indicated by: ❑ oil or scum line along shore objects ❑ survey to available datum; ❑ fine shell or debris deposits (foreshore) ❑ physical markings; ❑ physical markings/characteristics ❑ vegetation linesrchanges in vegetation types. ❑ tidal gauges ❑ other (list): (iii) Chemical Characteristics: Characterize tributary (e.g., water color is clear, discolored, oily film, water quality; general watershed characteristics, ctc.). Explain: Identify specific pollutants, if known: (iv) Biological Characteristics. Channel supports (check all that apply): ❑ Riparian corridor. Characteristics (type, average width): °A natural or man-made discontinuity in the OH WM does not necessarily sever jurisdiction (c g , where the stream temporarily flows underground, or where the OFIWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to tire waterbody's flow regime (e.g., now over a rock outcrop or through a culvert), the agencies will look for indicators of now above and below the break rlbid. ❑ Wetland fringe. Characteristics: ❑ Habitat for. ❑ Federally Listcd species. Explain Findings: ❑ Fish/spawn areas. Explain findings: ❑ Other environmentally -sensitive species. Explain findings: ❑ Aquatic/wildlife diversity. Explain findings: Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW (i) Physical Characteristics: (a) General Wetland Characteristics: Properties: Wetland size: acres Wetland type. Explain: Wetland quality. Explain: Project wetlands cross or serve as state boundaries. Explain: (b) General Flow Relationship with Non-TNW: Flow is: P)ek'`LA. Explain: Surface flow is: #fc—kTL si Characteristics: Subsurface flow: kIWIM. Explain findings: ❑ Dye (or other) test performed: (c) Wedand Adjacency Determination-with-Non-TNW: ❑ Directly abutting ❑ Not directly abutting ❑ Discrete wetland hydrologic connection. Explain: ❑ Ecological connection. Explain: ❑ Separated by berm/barrier. Explain: (d) Proximity (Relationship) to TNW Project wetlands are Pick,, gist river miles from TNW. P °,ie Project waters are k Lisle aerial (straight) miles from TNW. Flow is from: Pi'ckE'Ut. Estimate approximate location of wetland as within the Pic[cllist floodplain. (ii) Chemical Characteristics: Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed characteristics; etc.). Explain: Identify specific pollutants, if known: (iii) Biological Characteristics. Wetland supports (check all that apply): ❑ Riparian buffer. Characteristics (type, average width): ❑ Vegetation type/percent cover. Explain: ❑ Habitat for: ❑ Federally Listed species. Explain findings: ❑ Fish/spawn areas. Explain findings: ❑ Other environmentally -sensitive species. Explain findings: ❑ Aquatictwildlife diversity. Explain findings: 3. Characteristics of all wetlands adjacent to the tributary (if any) _� All wetland(s) being considered in the cumulative analysis: Plck'UR Approximately ( ) acres in total are being considered in the cumulative analysis. For each wetland, specify the following: Directly abuts? (YIN) Size (in acres) Directly abuts? (Y/N) Size (in acres] Summarize overall biological, chemical and physical functions being performed: C. SIGNIFICANT NEXUS DETERMINATION A significant nexus analysis will assess the (low characteristics and functions of the tributary itself and the functions performed by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW. Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a tributary and its adjacent wetland or between a tributary and the TN`%J. Similarly, the fact an adjacent wetland lies within or outside of a floodplain is not solely determinative of significant nexus. Draw connections between the features documented and the effects on the TNW. as identified in the Rapanos Guidance and discussed in the Instructional Guidebook. Factors to consider include, for example: • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or Flood waters to TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW? • Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW? • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that support downstream foodwebs? • Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or biological integrity of the TNW? Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented below: Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D: Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section III.D: 3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section II1.D: D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS/WETLANDS ARE (CHECK ALL THAT APPLY): TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area: 0 TNWs: linear feet width (ft), Or, acres. ® Wetlands adjacent to TNWs: 0.5 acres. RPWs that flow directly or indirectly into TNWs. ® Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that tributary is perennial: UTs Catawba River and UTs Holdsclaw Creek exhibits indicators of ordinary high water marks (OHWM) including developed bed and bank, scour, presence of litter and debris, destruction of terrestrial vegetation, sediment sorting and deposition, and leaf litter washed away. Some of the UTs Catawba River and UTs Holdsclaw Creek are depicted as a solid blue line on the USGS 7.5 minute quadrangle map Lake Norman North and the most current Natural Resource Conservation Service Soil Survey for Catawba County. Solid blue line features on these mapping conventions typically represent perennial streams. Perennial flow has been observed by Corps representatives during visits to the Sherrills Ford, North Cnrolina vicinity. Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows seasonally: Provide estimates for jurisdictional waters in the review area (check all that apply): ® Tributary waters: 9,999 linear feet 1-5 width (11). [I Other non -wetland waters: acres. Identify type(s) of waters: 3. Non-RPWs' that flow directly or indirectly into TNWs. Q Waterbody that is not a TNW or an RPW, but flows directly or indirectly into aTNW, and it has a significant nexus with a TNW is jurisdictional. Data supporting this conclusion is provided at Section I11.C. Provide estimates for jurisdictional waters within the review area (check all that apply): ED Tributary waters: linear feet width (1t). M Other non -wetland waters: acres. Identify type(s) of waters: 4. Wetlands directly abutting an RPW that now directly or indirectly into TNWs. ® Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands. ® Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: Flows directly into associated tributary. Wetlands are contiguous to RPWs that flow directly or indirectly Into TNWs. Wetland hydrology is enhanced with abutting RPWs via normal down gradient flows and periods of high water. El Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary seasonal in Section 111.13 and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly abutting an RPW: Provide acreage estimates for jurisdictional wetlands in the review area: 6.87 acres. 5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs. Q Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisidictional. Data supporting this conclusion is provided at Section II1.C. Provide acreage estimates for jurisdictional wetlands in the review area: acres. 6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs. 0 Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this conclusion is provided at Section III.C. Provide estimates for jurisdictional wetlands in the review area: acres. 7. Impoundments of jurisdictional waters.9 As a general rule, the impoundment of a jurisdictional tributary remains jurisdictional. Demonstrate that impoundment was created from "waters of the U.S.," or ® Demonstrate that water meets the criteria for one of the categories presented above (1-6). or ❑ Demonstrate that water is isolated with a nexus to commerce (see E below). E. ISOLATED [INTERSTATE OR INTRA-STATE1 WATERS, INCLUDING ISOLATED WETLANDS, THE USE, DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY SUCH WATERS (CHECK ALL THAT APPLY):'* which are or could be used by interstate or foreign travelers for recreational or other purposes, from which fish or shellfish are or could be taken and sold in interstate or foreign commerce. 0 which are or could be used for industrial purposes by industries in interstate commerce. Q Interstate isolated waters. Explain: Q Other factors. Explain: Identify water body and summarize rationale supporting determination: Provide estimates for jurisdictional waters in the review area (check all that apply): Q Tributary waters: linear feet width (ft). Other non -wetland waters: acres. Identify type(s) of waters: Wetlands: acres. 'See Footnote k 3. To complete the analysis relcr to the key in Section 111.1) 6 of the Instructional Guidebook_ 1° Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA 1IQ for review consistent with the process described in the Corps/EPA Memorandum Regarding CIVA Act Judsdicdan Fallowing Rapanos. F. NON -JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY): If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers Wetland Delineation Manual and/or appropriate Regional Supplements. Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce. ❑ Prior to the Jan 2001 Supreme Court decision in "S1fe1NCC" the review area would have been regulated based !gLy on the "Migratory Bird Rule" (MDR). Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain: Other: (explain, if not covered above): Provide acreage estimates for non jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional judgment (check all that apply): 0 Non -wetland waters (i.e., rivers, streams): linear feet width (11). 0 Lakes/ponds: acres. El Other non -wetland waters: acres. List type of aquatic resource: 0 Wetlands: acres. Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction (check all that apply): El Non -wetland waters (i.e., rivers, streams): linear feet, width (11). [] Lakes/ponds: acres. El Other non -wetland waters: acres. List type of aquatic resource: El Wetlands: acres. SECTION IV: DATA SOURCES. A. SUPPORTING DATA. Data reviewed for JD (check all that apply -checked items shall be included in case file and, where checked and requested, appropriately reference sources below): ® Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant: AMEC Foster Wheeler ® Data sheets prepared/submitted by or on behalf of the applicant/consultant. AM EC Foster Wheeler ® Office concurs with data shects/delineation report. With corrections based upon field verification of Nov. 3, 2015 ❑ Office does not concur with data shcets/delineation report. Data sheets prepared by the Corps: [] Corps navigable waters' study: El U.S. Geological Survey Hydrologic Atlas: ❑ USGS NHD data. ❑ USGS 8 and 12 digit FIUC maps. ® U.S. Geological Survey map(s). Cite scale & quad name: Lake Norman North. ® USDA Natural Resources Conservation Service Soil Survey. Citation: Catawba County, NC. National wetlands inventory map(s). Cite name: 0 State/Local wetland inventory map(s). ® FEMA/FIRM maps: Panel 4618, Map No. 3710461800J, Effective Date Sep. 5, 2007; Panel 4617, Map No. 3710461700K, Effective Date Mar. 18, 2008; and Panel 4628, Map No. 3710462800K, Effective Date Mar. 18, 2008 100-year Floodplain Elevation is: (National Gcodectic Vertical Datum of 1929) ® Photographs: 0 Aerial (Name & Date).Google Earth Pro Oct. 2016, Jun. 2015, Oct. 2014, Nov. 2013, Apr. 2010, May 2009, Jun. 2006, Feb. 2004, Mar. 1998, and Jan 1993.. or ❑ Other (Name & Date): Q Previous deterrnination(s). File no. and date of response letter: Applicable/supporting case law: Q Applicable/supporting scientific literature: 0 Other information (please specify): B. ADDITIONAL COMMENTS TO SUPPORT JD: The project area contains wetlands as determined by the 1987 Corps of Engineers Wetland Delineation Manual and the Regional Supplement to the Corps of Engineers Wetlands Delineation Manual: Eastern Mountain and Piedmont Region (version 2.0). These wetlands are adjacent to stream channels located in the project area that exhibit indicators of ordinary high water marks. Some of the streams arc blue line features on the USGS 7.5 minute topographic quadrangle map. The stream channels in the project area are UTs Catawba River and UTs Holdsclaw Creek. The UTs Holdsclaw Creek flow into Holdsclaw Creek, which flows inte the Catawba River (Lake Norman), a traditional navigable water (TNW) and a Section 10 water at the Mountain Island Lake dam in Mecklenburg County, NC. UTs Catawba River flow into the Catawba River (Lake Norman). The Catawba River joins the Santee Cooper River in South Carolina before entering the Atlantic Ocean. Attachment 3 Jurisdictional Determination documents for Allen Steam Station 'THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAME. (DATE)_ --------- _ --- -. ___._._.__- I, RANDY S. RAMBEAU, SR., PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30. AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMEDBETWEEN 02/01/2016 AND 02/02/2016. lgi-I RANDY S. MnMBEAU ,PLS L ... , DATE LEGEND W-105 WETLAND FLAG I • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG N/F DUKE ENERGY CORPORATION DB 2681 PG 5E PIN/ 359287571 IN 0 PLANT —11 ROAD Q y�G 5 FO CD SITE REESE-WILSON ROA[ V Z VICINITY MAP NOT TO SCALE PRO,ECT LIMITs N/F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN/ 3592875790 MCKIM 1, CREED #501 2102' NC GRID NAD 83/11 N: 529407.58' E: 1397706,96' ti ELEV-. 673.31' MCKiM h CREED #500 COMBINED SCALE 4 NC GRID NAD 83/11 FACTOR=0.9998458847 ,l N: 529213.75' h' a E: 1396705.91' ELEV: 680.14' NOTE: 1. ALL DISTANCES SHOWN ARE HORIZONTAL GRID DISTANCES INU.S. SURVEY FEET. (UNLESS OTHERWISE STATED) IK N/F 2. ALL COORDINATES ARE BASED ON THE NORTH CAROLINA STATEDUKE ENERGY PLANE COORDINATE SYSTEM (NAD 1953/11) GRID BEARING ARECORPORATION BASED ON McKIM & CREED # 500 & #501. DB 2681 PG 586 3. THIS SURVEY PERFORMED AND MAP PREPARED WITHOUT THEPIN# 3592075790 BENEFIT OF A TITLE REPORT. THIS SURVEY IS SUBJECT TO ANY FACTS AND EASEMENTS WHICH MAY BE DISCLOSED i BY A FULL AND ACCURATE TITLE SEARCH. 4. WETLANDS CONTINUE OUTSIDE OF PROJECT LIMITS. 5. ALL PROPERTY BOUNDARIES AND R/W SHOWN HEREON ARE FROM PUBLICLY AVAILABLE GIS DATABASE SOURCES. 6. NO PROPERTY SURVEY WAS PREFORMED. a SCALE: 1" = 1000' 0 500 1000 2000 3000 9 1°t 46 WETLAND DELINEATION SURVEY PROJECT # : 4082-0058 v NfI�I&� ON PROPERTY KNOWN AS: PROJ. SVYR DRAWN BY RSR JSS ALLEN STEAM STATION FIELD BK. R1004 1730 VARSITY DRIVE OWNED 6Y: COMP. FILE SHEET WIOI-40820058 1 OF 12 SUITE ENERGY CORPORATION INCDUKE RALEIGH, 27606 TEL: (919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 7"=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. # :JOB FOLDER ,HIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL" (NAMEj____ (TITLE)_ (DA IE 1-- I, RANDY S. RAMBEAU, SR., PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30, AND :S NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. l ___ I/GtOit c�.Y!_ 71t f --- — — kA'vJY g R BF AU SR, P:G I -2520 DA TE N\ 00 n Q Z �a ALLEN ROAD SITE AN ROAD MAP SCALE: 1" = 100' LEGEND 0 50 100 200 300 W-105 WETLAND FLAG I N/F • CALCULATED POINT DUKE ENERGY O IRON PIPE FOUND CORPORATION X WETLAND FLAG I PIN# 3592875 90 CA/VAL h I DUST S�BJED T Or NEB r/oN �wA I 5 ryE N it o w S6-4 !� S6-10 00 \`T '(� S6-3 U` S6-11 0 `V \ 56-1 z S6-2 STREAM s6 =1031 L.F. 56-12 56-13 `,�\9 / NO NENERGY DUKE ENERGY CORPORATION \ ,fy 2586 / PININ 35/ 359287875790 VIE V To S WETLAND DELINEATION SURVEY PROJECT N : 4082-0058 * R'Wi/TA I( i��i�DLWLWTI ON PROPERTY KNOWN AS: PROD. SVYR DRAWN BY : RSR JSS j�ll."j�l�/j(j tj�jt'jj,J `% ALLEN STEAM STATION FIELD 8K. : R1004 1730 VARSITY DRIVE OWNED BY., COMP. FILE SHEET / : VFIOI-40820058 2 OF 12 SUITE 500 DUKE ENERGY CORPORATION RALEIGH, NC 27606 TEL: (919)233-8091 DATE: FEBRUARY 02. 2016 SCALE I'-100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DwG ,1OB FOLDER THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 IF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED M1 THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR 'UBLISHED REGULATIONS, THIS OETERMINATION OF SECTION 404 URISOICTION MAY BE RELIED UPON FOR A PERIOD NOT TO .%CEED FIVE YEARS FROM THIS DATE, TKS DETERMINATION WAS IADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 987 CORPS OF ENGINEERS WETLANDS CELINEATION MANUAL.' TILL) DATE) ___________.. I, RANDY S. RAMBEAU, SR., PLS L- 2520, CERBFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. RANDY S. RA1 EAU SR., PLS _ 2520 DATE O� tr'.Q U I� N/F \ Z DUKE ENERGY'S LEGEND SEAL y CORPORATION L-2520 IX DB 2681 PG 586 w W-105 WETLAND FLAG y PIN/ 3592875790 CALCULATED POINT yO SUit�E+ QJ O IRON PIPE FOUND yS, RAC X WETLAND FLAG IM&e1 Lf GA ccTiol GHP T E G,�A 015u OF T� �OT 404 N /F DUKE ENERGY CORPORATION 08 2681 PG 586 PIN# 3592875790 190, o rQ� �O PLANT ALLEN ROAD SITE REESE-"LSON ROAD VICINITY MAP SCALE: 1' = 100' 0 50 100 260 300 S6 ?s S6-27 57'04' p0 j15 2t"1215 CREED `0 M�K1M `ss.2 56-28 s S6-13 STREAM S6 =103,1 L.F. 6. 56-5 74 S6 S6 ?3S S6-17 oS6-161, N1 56-19a S6-1B S5-1 w S5-2 STREAM S5 =204 L.F. No 55-3 S5-3 S5-4 PROJECT LIMITS S5-5 WETLAND DELINEATION SURVEY PROJECT N: 4082-0058 v- * ��&� 1`/1`�'j ON PROPERTY KNOWN AS: PROD. DRAWN BY : SR JSS R10 V ALLEN STEAM STATION FIELD SK. R7IOI 1730 VARSITY DRIVE OWNED BY: FILE COMP. FlLE SHEET { : VF101-40820058 : 3 OF 12 SUITE 500 DUKE ENERGY CORPORATION RALEIGH, NC 27606 TEL: (919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 1"=100" F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. rP :JOB FOLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL.- (NAME)— (Ti TLE)--- (DATE)— I, RANDY S. RAMBEAU, SR., PLS 2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MACE UNDER MY SUPERNSION; THIS MAP DOES NOT CONFORM TO G.S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. RANDY S. RAWBEAU SR., PLS L 2520 DATE N/F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 SCALE: 1" = 100' mmomw 0 50 160 260 300 a rc �/" a PLANT ALLEN ROAD J;v 9TE REESE-WILSON ROAC VICINITY MAP vow j0 QUO N DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 ,5Y/EET S SHEET 4 WETLAND DELINEATION SURVEY PROJECT 8 : 4082-0058 �7�t V */��/��j� ON PROPERTY KNOWN AS: PROD, SVYR DRAWN BY RSR JSS l�rll 1i�V11L�r11�J ALLEN STEAM STATION FIELD BK. R1004 1730 VARSITY DRIVE OWNED BY. COMP. FlLE VF701-40820058 lOI SUITE 500 DUKE ENERGY CORPORATION SHEET i : 4 OF 12 RALEIGH, NC 27606 TEL: (919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 1'e100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA Dye : UOB FOLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO 1HE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAMFi (DAEl__._...._ .......... I, RANDY S. RAMBEAU, SR., PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. RANDY S. i�ZHLAJ .,'I PLS L . _.._ DATE LEGEND W-105 WETLAND FLAG IJ' • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG N /F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 SCALE: 1" = 100' 0 50 100 260 300 < `Rr O +0 4 PLANT ALLEN ROAD WETLAND DELINEATION SURVEY PROJECT # 4082-0058 v- UM �( �+�CREM ON PROPERTY KNOWN AS: PROD. DRAWN BY RSR : JSS ALLEN STEAM STATION BK. FIELD BK. ; Ri004 10 1730 VARSITY DRIVE 0 VARSITY OWNED BY: COMP. FILE SHEET # : VF101-40820058 VFI : 5 OF 12 SUITE 500 DUKE ENERGY CORPORATION RALEIGH, NC 27606 TEL:(919)233-8091 DATE: FEBRUARY02. 2015 SCALE 1"=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. # :JOB FOLDER 'THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL.' (NAME) ,TITLE). (DATE). I, RANDY S. RAMBEAU, S2.. PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30. AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. _,�'_ RANDY S. R EAU SR., PLS L-2520 DATE LEGEND E EEr a W-105 WETLAND FLAG /' • CALCULATED POINT / O IRON PIPE FOUND X WETLAND FLAG 4 N DUKE ENERGY CORPORATION DS PIN#23592875790 CV` LO V SCALE: 1" = 100' 0 50 100 260 300 SHEET 5 N/F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 PLANT ALLEN ROAD SITE REESE-WILSON RON VICINITY MAP \ 40 I 10 WETLAND DELINEATION SURVEY PRO PROJECT# RSR v *�j2-0058 N ON PROPERTY KNOWN AS: DRAWN BY : : JSS 1md&� ALLEN STEAM STATION BK. 1730 VARSITY DRIVE OWNED BY. COMP. ig v1000i 4oB2oo56 SUITE DUKE ENERGY CORPORATION SHEET # : 6 OF 12 RALEIGH,ONC 27606 TEL:(919)233-8091 DATE. FEBRUARY 02, 2016 SCALE F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG ; ,IOB FOLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTIUZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAMr (TITLE I, RANDY S. RAMBEAU. SR., PLS L-2520, CERTFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO CS. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016 ,1 / �It?/1L cfi vl %�r_y� .(Z S. RF DEAU SR., PLS L 2520 _ATE LEGEND W-105 WETLAND FLAG # • CALCULATED POINT O IRON PIPE FOUND M WETLAND FLAG SCALE: 1" = 100' 6 56 100 260 300 Z (U/�BCdN) OR10 D'N a 14. PLANT Al rw IYJAD N /F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 SITE nN ROAD 46 WETLAND DELINEATION SURVEY PROJECT # : 4082-0056 V V N llV1 4&CJZ= ON PROPERTY KNOWN AS: PROJ. SVYR DRAWN BY RSR : JSS ALLEN STEAM STATION FIELD BK. R1004 1730 VARSITY DRIVE OWNED BY: COMP. FILE SHEET / VFIOI-40820058 : 7 OF 12 SUITE 500 DUKE ENERGY CORPORATION RALEIGH, NC 27606 TEL:(919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 1`=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. # :JOB FOLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (TITLE) -- (DATE) __.____.__-_..__._. I, RANDY S. RAMBEAU, SR.. PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47--30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. 1 .%If17 RANDY S. RnMIBEAU SR.. PLS L-2520 uATE LEGEND W-105 WETLAND FLAG , • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG N/F DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 SCALE: 1" = 100' 0 50 100 200 300 SHEET 7 (WE90VN) 0180 0-N 'T ALLEN ROA Z® � 9 TE MAP GAP �G o �0 ip o SHEET B 1 ` �+ 1�eT1 WETLAND DELINEATION SURVEY PROJECT $ PROJ. SVYR : 4082-0058 �Cn &C M N , . ON PROPERTY KNOWN A5: DRAWN BY RSR JSS �il-iV \...LWL�L ALLEN STEAM STATION FIELD BK. R1004 1730 VARSITY DRIVE OWNED BY. COMP. FILE VF101-40820058 SUITE ONC 27606 RALEIGH, DUKE ENERGY CORPORATION SHEET : 8 OF 12 TEL:(919)233-8091 DATE: FE13RUARY 02, 2016 SCALE 1"=100' F-1222 — SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. aM :JOB FOLDER . I v 0 . Y "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAMEj - i �DAIF)-_ I, RANDY S. RAMBEAU, SR., PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO 0&S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2015 AND 02/02/2016. f%il /.&'A��lir'<<<2_2 i rt _t7 R Ir` Y 5. '(iMbEAU SR., PLS L-2520 DATE LEGEND W-105 WETLAND FLAG j' • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG JURISDICTIONAL AREA IS SUBJECT TO SECTION 404 OF THE CLEAN — WATER ACT (CWA). JURISDICTIONAL AREA IS DESIGNATED AN EFFLUENT CHANNEL UNDER 15A NCAC .0228 SCALE: 1' = 100' iiiii 0 SO 100 260 300 N /F DUKE ENERGY CORPORATION DE 2681 PG 586 PIN/ 3592875790 D-501 N eo q 1r g �< _ m PLANT ALLEN ROAD Q R tlA0 caef HR�SOH STE C7 REESE-WILSON ROAD U Z VICINITY MAP NOT TO SCALE q P. STREAM S7 -516 L.F. \ rZ G A St-3 j S1-2 / S1-4'�at 11 I m I N n f 5 o a V i SO P9P\ \ TREAM S3 -288 L.F. m SJ- I?8 D-500 53,7?7 D-498 SIT 1.25 99:.: D-497 W I —JURISDICTIONAL AREA IS SUBJECT m I D-496 TO SECTION 404 OF THE CLEAN z WATER ACT (CWA). Q JURISDICTIONAL AREA IS DESIGNATED AN EFFLUENT w I I CHANNEL UNDER 15A NCAC .0228 0 NI WETLAND DELINEATION SURVEY PROJECT # : 4082-0058 V �� ON PROPERTY KNOWN AS: PROJ. SVYR DRAWN BY : RSR :JSS ALLEN STEAM STATION FIELD R10 R1004 1730 VARSITY DRIVE OWNED BY: COMP. FILE SHEET / VF101-40820058 : 9 OF 12 SUITE 500 DUKE ENERGY CORPORATION RALEIGH, NC 27606 TEL: (919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 1'=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. N :JOB (OLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAME)____ ._._____._. (TITLE) (DATE)_�___...._._...._......._........_.. _________.. I, RANDY S. RAMBEAU, SR., PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30. AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/201/6 AND 02/02/2016. 41 RA DY S MBEA SR., PLS L-2520 DATE LEGEND W-105 WETLAND FLAG if • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG SEAL L-2520 o � s n A f. J f SCALE: 1" = 100' z m � 0 0 0 50 160 21>0 300 0 N /F S4-1 DUKE ENERGY CORPORATION DB 2681 PG 586 PIN# 3592875790 S4-2 S4-3 S4-4 S4-5 STREAM S4 -599 L.F. S4-6 S4-7 PROJECT LIMITS S4-8 S4-9 2 ^I 0 rc \10 ALLEN ROAD SITE VICINITY MAP WETLAND DELINEATION SURVEY PROJECT B : 4082-0058 * �*/�f CR= ON PROPERTY KNOWN AS: PROD. SVYR RSR DRAWN BY lrl 1�LLriV �iV�L:iLJ ALLEN STEAM STATION : ,1SS FIELD BK. : R1004 1730 VARSITY DRIVE OWNED BY. COMP. FILE : VF701-40820058 SUITE 500 DUKE ENERGY CORPORATION SHEET / : 10 OF 12 RALEIGH, NC 27606 TEL:(919)233-8091 DATE: FEBRUARY 02, 2016 SCALE 1"-100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. f:JOB FOLDER "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 JURISDICTION MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL." (NAME) (nTEE). (DATE) I, RANDY S. RAMBEAU, SR., PLS L-2520. CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO G.S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 LAND 02/02/2016. h NVDr S. RAMBEAU SR., PLS L-2S_l I LATE LEGEND W-705 WETLAND FLAG j • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG WETLAND TABLE POINT # LATITUDE LONGITUDE WETLANDS 45 35'10'25.5" -81'00'25.1" D_486 46 3510'25.0" -81'00'26.9" D-487 47 35'10'25.3" -81'00'27.0' D_487A 48 35'10'25.3" -81'00'26.8" 0_4878 49 35'10'25.1' -81'00'26.7" 0_487C 36 3510'24.9" -81'00'26.9" D_488 35 35'10*24.8" -81'00'26.3" 0_489 34 35'10'24.4" -81'00'26.3" D_490 33 35*10'24.4" -81'00'26.1" D_491 32 13510'24.4" -81'00'25.0" 1 D_492 30 35'10'24.7* -81'00'24.3" D_493 21 35'10'24.5" -81'00'23.9" D_494 22 35'10'24.6' -81'00'23.5" D_495 23 35'10'24.8" -81'00'23.2" D_496 24 35'10'25.3" -81'00'22.7" D_497 25 35'10'25.6' -81'00'22.3' D_498 43 35'10'25.4' -81'00'22.9' D_499 26 3510*25.7" -81'00'22.7' D_500 37 35'10'26.2" -81'00'22.8" 0_501 27 35'10'25.5" -81'00'23.2" D_502 28 35'10'25.3" -81'00'23.6" D_503 29 35'10'25.0' -81'00'23.9" D_504 31 35'10'25.2" -81'00'24.4' D_505 44 35'10'25.6" -81'00'24.6" 0-506 WETLAND/STREAM DATA TOTAL WETLAND AREA = 0.655 ACRES = 28,534 SQUARE FEET TOTAL STREAM LENGTH = Z638 LINEAR FEET STREAM TABLE POINT # LATITUDE LONGITUDE I WETLANDS 1 35'10'33.0" -81'00'22.4" S1_1 2 35'10'32.5" -8100'21.6" S1-2 3 35'10'32.6" -81'00'21.4" St-3 4 35*10'32.2" -81'00'20.9' 514 5 35'10'32.2" -81'00'20.7" S1_5 ' 9 f �O PLANT ALLEN ROAD SITE REESE_TALSON ROAD VICINITY MAP WETLAND DELINEATION SURVEY PROJECT i : 4082-0056 � /�'"T/T� &CRE�L�Ti ON PROPERTY KNOWN AS: PROD. SVYR DRAWN BY RSR : JSS 1Nr1V1�/j �.j�GrjJ_J ALLEN STEAM STATION FIELD BK. R1004 1730 VARSITY DRIVE OWNED BY.. COSHEETLE : VFIOI-40820058 SUITE 50RALEIGH,ONC DUKE ENERGY CORPORATION j 27606 TEL:(919)233-8091 DATE., FEBRUARY02, 2016 SCALE 1"=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG JOB FOLDER .► a v "THIS CERTIFIES THAT THIS COPY OF THIS PLAT ACCURATELY DEPICTS THE BOUNDARY OF THE JURISDICTION OF SECTION 404 OF THE CLEAN WATER ACT AS DETERMINED BY THE UNDERSIGNED ON THIS DATE. UNLESS THERE IS A CHANGE IN THE LAW OR OUR PUBLISHED REGULATIONS, THIS DETERMINATION OF SECTION 404 dURISDICT10N MAY BE RELIED UPON FOR A PERIOD NOT TO EXCEED FIVE YEARS FROM THIS DATE. THIS DETERMINATION WAS MADE UTILIZING THE APPROPRIATE REGIONAL SUPPLEMENT TO THE 1987 CORPS OF ENGINEERS WETLANDS DELINEATION MANUAL" (NAME) (TITLE) (DATE). RANDY S. RAMBEAU, SR.. PLS L-2520, CERTIFY THAT THIS MAP WAS DRAWN UNDER MY SUPERVISION FROM A FIELD SURVEY MADE UNDER MY SUPERVISION; THIS MAP DOES NOT CONFORM TO C.S. 47-30, AND IS NOT INTENDED FOR RECORDATION. DATES OF SURVEY WERE PERFORMED BETWEEN 02/01/2016 AND 02/02/2016. 9 HAN(,r S. RAMBEAU SR., PLS L �'<':i DATE LEGEND W-105 VII FLAG • CALCULATED POINT O IRON PIPE FOUND X WETLAND FLAG STREAM TABLE POINT # LATITUDE LONGITUDE WETLANDS 38 3510'25.7" —81'00'22.3" S3_124 39 35'10'25.6" —81'00'21.3" S3_125 40 35'10'25.7" —81'00'20.8" S3_126 41 35'10'25.8' —81'00'20.5" S3_127 42 35'10'26.1" 1 —81'00'19.9' 1 S3_128 STREAM TABLE POINT # LATITUDE LONGITUDE WETLANDS 12 35'1 O'l 7.3" —81'00'42.1" S4-1 13 35'10'16.8" —81'00'41.9" S4_2 14 35'10'16.2" —81'00'40.6" S4-3 15 351O'l5.8" —81'00'39.8" 1 S4-4 16 35'10'15.7" —81'00'39.1' S4_5 17 35*1O'l5.1' —81'00'38.6" S4_6 18 35'10'15.0" —81'00'37.9" S4-7 19 351O'l4.7" —81'00'36.8" S4_8 20 351O'l4.4" —81'00'36.2" S4_9 STREAM TABLE POINT # LATITUDE LONGITUDE WETLANDS 55 35'11'06.4" —81'01'37.2" S5-1 54 3511'06.2" —81'01'37.1" S5_2 53 3511'06.2" —81'01'36.9' S5_3 52 35*11'05.8" —81'01'36.2" S5-3 51 35'11'05.5" —81'01'35.9" S5_4 50 35'11'05.3" —81'01'35.7' S5-5 STREAM TABLE POINT # LATITUDE LONGITUDE WETLANDS 83 3511'07.5* —81'01'44.8" S6-1 82 35'11'07.5" —81'01'44.7" S6_2 81 35'11'07.9" —81'01'43.9" S6_3 80 35'11'08.1' —81'01'43.7" S6_4 79 35'11'08.1" —81'01'43.2" S6-5 78 35*11'08.2" —81'01'43.2" S6_6 77 35'11'08.3" —81'01'43.1" S6-7 76 3511'08.3" —81'01'42.9" S6_8 75 35*11'08.3" —81'01'42.3" S6_9 74 35'11'08.0" —81'01'41.8" S6_10 73 35'11'07.9" —81'01'41.4" S6_11 72 35*11'07.6" —81'01'41.2" S6_12 71 3511'07.3' —81'01'40.9" S6_13 70 35'11'07.2' —81'01'40.5" S6_14 69 3511'07.2" —81'01'40.1" S6_15 68 35'11'07.0' —81'01'39.8" S6_16 67 35'11'06.7' —81'01'39.6" S6_17 66 3511'06.6' —81'01'39.3" S6_18 65 35'11'06.5" —81'01'38.8" S6_119 64 35'11'06.4" —81'01'38.5" S6_20 63 3511'06.5" —81'01'37.8" S6_21 56 35-11'06.5* —81'01'37.4' S6_22 57 35'11'06.9' —81'01'36.6" S6 23 58 35'11'07.3' —81'01'36.2" S6_24 59 3511'07.7* —81'01'35.7' S6 25 60 351V08.1' —81'01'35.4" S6 26 61 35'11'08.1" —81'01'34.8" S6_27 62 35'11'08.0" —81'01'34.5" S6_28 ALLEN ROAD SITE m ROAD V �71 MC , & WETLAND DELINEATION SURVEY ON PROPERTY KNOWN AS: PROJECT # PROD. : 4082-0058 RSR �L,L-1 ALLEN STEAM STATION BY DRAWN BY JSS 1004 1730 VARSITY DRIVE OWNED BY. COMPDF8LE ; 101-40820058 SUITE 500 RALEIGH, NC 27606 DUKE ENERGY CORPORATION SHEET / : 12 OF 12 TEL: (919)233-8091 DATE. FEBRUARY 02, 2016 SCALE 1'=100' F-1222 SOUTHPOINT TOWNSHIP GASTON COUNTY NORTH CAROLINA DWG. III:JOB FOLDER Attachment 4 Updated list of State or Federal permits obtained or anticipated for impoundment closure at Riverbend List of all State or Federal permits obtained or anticipated for impoundment closure MEDIA DATE NPDES Industrial NCDEQ issued the ISW permit Stormwater (ISW) May 15, 2015 May 15, 2015. SPPP Permit implementation date Water was November 15, 2015. NPDES Wastewater Q1 2016 Permit became effective December 1, Permit — Major (Modified by SOC 2016. Modification in Q4 2016) Jurisdictional There are no identified jurisdictional Wetland and Stream wetland/stream impacts. A Jurisdictional Impacts / 404 N/A Determination (JD) was issued on Permitting August 24, 2015 and expired on August and 401 WQC 24, 2020. A Jurisdictional Review Wetland Re -Validation Request package was submitted to the U.S. Army Corps of Engineers on October 9, 2020 to obtain a JD renewal. Intermediate Dam Submitted May 31, 2016. Decommissioning June 16, 2016 Received approval June 16, 2016. Request Approval Decommissioning completed March 13, 2017. Primary Dam Submitted May 8, 2017. Modification Request Received approval August 3, 2017. Dam Safety Approval August 3, 2017 Modification completed March 3, 2018. Primary and Resubmitted May 29, 2018. Secondary Dam Received approval June 7, 2018. Decommissioning June 7, 2018 Decommissioning is currently in Request Approval progress. Mine reclamation Waste Individual Structural October 15, 2015 owner/operator obtained an Individual Structural Fill Permit Fill Permit (Permit to Operate) pursuant to N.C.G.S. § 130A-309.219. Original permit received Duke Energy Water Conveyance August 2, 2016 April 7, 2016. Amended permit for Lake Services Permit revised quantities received August 2, 2016.