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HomeMy WebLinkAboutNC0089109_Plan of Action_20200416TIMOTHY R. BASILONE Vice President — Environmental Affairs ZK AMERICAN ZINC RECYCLING 3000 GSK Drive T 724-773-2223 www.azr.com Suite 201 F 412-788-4526 tbasilone@azr.com Delivering a Sustainable Future Moon Township, PA 15108 April 16, 2020 Division of Water Resources WQ Permitting Section - NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 (Electronic Version Only (pdf and CD)) Division of Water Resources Water Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 (Electronic Version (pdf and CD) and Hard Copy) Re: Revised Fish Tissue Monitoring Plan NPDES Permit NCO089109 American Zinc Products Condition Part I, A. (4.) In accordance with NPDES Permit NCO089109 issued to American Zinc Products (AZP) in Rutherford County, NC, enclosed is a Revised Fish Tissue Monitoring Plan (Revised Plan) developed for the collection, preparation and chemical analysis of fish samples collected from the Broad River upstream and downstream of AZP's permitted discharge outfall. The Revised Plan was edited to address comments provided to AZP by DWR in a letter dated December 20, 2019, and according to permit condition Part I, A. (4). A responsiveness summary is included to facilitate the Department's review of the Revised Plan. The Revised Plan identifies certified labs that may be used for the analytical evaluation of samples that are collected. A list of potential contractors for field work, including the collection of fish and sample preservation is also provided. This information does not represent a commitment by AZP to use any of the listed contractors or laboratories. AZP will select appropriate and qualified service providers to perform monitoring activities in accordance with the approved monitoring plan. Following agency approval of the monitoring plan, AZP will follow the revised plan to perform monitoring within the current permit cycle. Results from monitoring activities will be included with the Company's application for renewal of the NPDES Permit that is submitted to the Department. Please advise me if you have any questions. Thank you for your attention to this matter. Sincerely, zxj� Timothy R. Basilone Encl. Responsiveness Summary AZR Fish Tissue Revised Monitoring Plan and DWR Review Comments (12/20/2019) • Note addition of CZR Inc. Environmental Consultants Wilmington NC to contractor list. • Duplicate samples of two duplicates per site for a total of four duplicates Comment: As stated in the permit, fish tissue monitoring of arsenic (As), cadmium (Cd), and zinc (Zn) must be performed once during the 5-year AZR NPDES permit cycle. For clarity please include these terms in the beginning of the AZR fish tissue monitoring plan, as well as in the final report. Response: Page one of the AZR revised Fish Sampling Plan incorporates the exact requirements of the NPDES Fish Tissue Monitoring requirement and is reproduced in the plan and labeled as Permit Item A. (4). 2. Comment: Please omit the last two paragraphs on page 2 through page 4 (including Figure 1 and Table 1). The referenced 2019 NCDWR fish tissue monitoring activities were conducted via internal agency request, and not specifically intended to serve as a model for NPDES fish tissue contaminant monitoring of the Broad River. However, it would be reasonableto list those species collected by DWR in 2019, and to specify which of those species are being targeted for the required AZR fish tissue monitoring. Response: The requested deletions have been made as requested. Target species have been identified based on the DWR suggestions and the 2019 collections. Comment: The plan should outline AZR's proposal to compare arsenic (As), cadmium (Cd), and zinc (Zn) fish fillet concentrations from two separate locations in the vicinity of the AZR waste water discharge (upstream control, and downstream). Site boundaries should be separated by a reasonable distance (— 1 mile) to characterize the potential impact of AZR's waste water discharge on As, Cd, and Zn concentrations in fish. All of the current NPDES fish tissue monitoring plans in the state of North Carolina share this paradigm of upstream -downstream comparisons for the purpose of determining a facility's potential impact on fish contaminant levels. Response: The AZR revised Fish Sampling Plan incorporates two monitoring locations, one upstream and one downstream of the AZR facility. 4. Comment: The boundaries of the proposed downstream fish collection reach are reasonable and therefore will be accepted as is. Response: No changes necessary related to this comment. 5. Comment: We suggest placement of the upstream sample reach (control) to be above the Jack McKinney Road bridge (approximately 3 river miles above the AZR waste water discharge), to create considerable distance between the two reaches and provide similar habitat types and species assemblages for contaminant comparisons. Response: The AZR revised Fish Sampling Plan incorporates the addition of a Broad River sampling reach from the Jack McKinney Road Bridge to one mile downstream. 6. Comment: The plan should outline an attempt to collect 10 individuals of 3 targeted species from both sample reaches (total of 30 fish from each sample reach), with a minimum of 6 individuals per species meeting the permit requirement (total of 18 fish from each sample reach). Response: The revised Fish Sampling Plan now targets a goal of 3 species composed of 10 individual fish at each location with a minimum objective goal of 18 fish from each location. 7. Comment: Based on the NCDWR's 2019 fish collections, the most likely target species in this section of the Broad River include Largemouth Bass (top predator), Redbreast Sunfish (mid-trophic insectivore), and Notchlip Redhorse (mid- trophic omnivore). Other suitable species of bass, sunfish, suckers, catfish, or carp should also be retained during collection efforts. These fish samples may be submitted for analysis if target species are absent or low in numbers, or as supplemental observations. Response: The AZR revised Fish Sampling Plan has incorporated the suggested primary target species and the secondary target species as identified in the DWR comments. 8. Comment: In the final monitoring report, please provide data comparisons to fish consumption screening levels set by the North Carolina Department of Health and Human Services (NCDHHS) and the Environmental Protection Agency. Response: AZR is aware that EPA and NCDHHS fish tissue screening levels may be established based on different assumptions at different times and for different purposes. AZR will reference established standards and criteria and other such information available at the time the monitoring report is submitted. AZR will submit a final fish monitoring report with the NPDES permit renewal application as required in our NPDES permit Item A.(4.). Revised Fish Tissue Sampling Plan American Zinc Recycling, LLC NPDES Permit Condition Permit Item A. (4.) Revised March, 2020 11Page Fish Tissue Sampling Plan American Zinc Recycling NPDES NCO089109 Introduction This Sampling Plan is designed to assist with the planning and responses necessary for the successful compliance of the Fish Tissue Monitoring Condition included in the American Zinc Recycling (AZR), LLC Forest City, Rutherford County NPDES Permit NC0089109. The Permit as modified is scheduled with an effective date of June 1, 2019. This Study Plan was revised based on NCDWR Comments dated December 20, 2019. The NPDES Fish Tissue Monitoring requirement is included as Permit Item A. (4.) as follows (taken directly from the permit): A. (4.) FISH TISSUE MONITORING [G. S. 143-215.1(b)] The facility shall conduct fish tissue monitoring once during the permit cycle and submit the results with the NPDES permit renewal application. The objective of this monitoring is to evaluate potential uptake of pollutants by fish tissue near the facility's discharge. The parameters analyzed in fish tissue shall be arsenic, cadmium, and zinc. The monitoring shall be conducted in accordance with the sampling plan approved by the Division. The plan should be submitted to the Division within 180 days from the effective date of the permit modification. Upon approval, the plan becomes an enforceable part of the permit. Copies of all the study plans, study results, and any other applicable materials should be submitted to: 1) Electronic Version Only (pdf and CD) 2) Electronic Version (pdf and CD) and Hard Copy Division of Water Resources Division of Water Resources WQ Permitting Section - NPDES Water Sciences Section 1617 Mail Service Center 1621 Mail Service Center Raleigh, NC 27699-1617 Raleigh, NC 27699-1621 Objectives All fish tissue sampling performed by American Zinc Recycling (AZR) will be conducted based on an approved sampling plan (this plan) according to the NPDES permit condition. Any exceptions to this approved Sampling Plan either due to unforeseen logistical challenges, difficulty in obtaining target species, safety concerns or other issues will be specifically detailed in writing and communicated to the NCDWR either during or after field sample collections are performed. The purpose of this Sampling Plan is to document sample collection and analytical procedures to be followed by AZR contractors for the collection and processing of fish samples for analysis of Arsenic, Cadmium, and Zinc as may be found in the edible portion (fillet) of target species in the vicinity of the AZR waste water discharge. After obtaining the appropriate fish samples, fillet portions will be processed and delivered to a North Carolina certified laboratory for total arsenic, total cadmium, and total zinc. Results from this sampling and laboratory analysis will be reported to the NCDWR with the next AZR NPDES permit renewal application as specified in the current NPDES permit under: A. (4.) FISH TISSUE MONITORING. It is the goal of this Sampling Plan to obtain ten individual fish for each of three different target species at two different locations. One location will be geographically upstream of the AZR facility and another location will be located geographically downstream of the facility. All fish submitted for chemical analysis will be representative of edible sizes. This goal, if attainable, 2[Page Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 will represent a total of 60 individual fish fillet samples for total arsenic, total cadmium, and total zinc. Sample duplicates will also be submitted for laboratory analysis on four samples. Sampling Target Species The resident fish species of the Broad River near the American Zinc Recycling (AZR) facility are expected to include a number of different fish species based on North Carolina Division of Water Resources (NCDWR) fish sampling conducted on March 13, 2019. NCDWR Water Sciences Staff collected fish samples from the Broad River both upstream and downstream of the AZR facility's discharge. The following eight species were collected for metals analysis by NCDWR in March of 2019: Bluegill Sunfish Notchlip Redhorse (Sucker) Brassy Jumprock (Sucker) Redbreast Sunfish Flat Bullhead Smallmouth Bass Largemouth Bass White Sucker Based on the results of NCDWR fish collection sampling efforts in March 2019, this AZR Sampling Plan represents a lofty goal. At a minimum, this AZR Sampling Plan will strive for representation at each location with at least three edible species and a minimum of at least six individuals from each species selected from the target species list. Thus, a minimum total of 18 fish samples will be selected for laboratory analysis from each location. Because ten individual representatives of each species may not be attainable at each location, the sampling effort will be well documented by the selected AZR contractor. Based on NCDWR's 2019 fish collections and recommendations, the three species chosen as primary targets for collection in this study include: Largemouth Bass, Redbreast Sunfish, and Notchlip Redhorse. Each of these three species represent different trophic levels — top predator, mid-trophic insectivore, and mid trophic omnivore, respectively. If these three primary target species are absent from each location or a minimum of six individuals from each species are not attainable then secondary target species may be substituted. Secondary target species may include: Bluegill Sunfish, Brassy Jumprock, Flat Bullhead, Smallmouth Bass, White Sucker, catfish, carp or other species. 3 1 P a g e Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 Broad River Sampling Reach Locations The Broad River in the vicinity of the AZR facility can be a challenge for many fish collection approaches including gill nets, hook and line, electrofishing, and other practices. Fish samples will be obtained from two locations on the Broad River. The Broad River is a rocky, flashy, and swift waterbody capable of rapid changes in water depth. The first sampling reach location on the Broad River will start at the Jack McKinney Road Bridge (approximately three river miles above the AZR facility). The downstream extent of this sampling reach will be located no further than one mile downstream of the Jack McKinney Road Bridge. The second fish sampling reach will obtain fish from the Broad River below the AZP discharge. The second river sampling reach will start below the AZP discharge in the vicinity of the Highway 221 bridge over the Broad River (GPS location approximately Latitude 35.20585 Longitude-81.83773). The downstream extent of the sampling reach will be located approximately one mile downstream of the Highway 221 bridge over the Broad River (GPS location approximately Latitude 35.205356 Longitude-81.821633). In any case, depending on the availability of fish, the extent of each actual sampling reach will be measured and reported using reliable GPS positioning equipment. The agent or contractor selected for fish sample collections will provide copies of any figures, maps, and photographs needed to document the location of the sampling reach. Photographs documenting sampling collection activities will also be provided. Sampling Technique Methods It is anticipated that the AZR fish collection contractor will employ boat mounted powered electrofishing as the primary means of fish collection. Depending on the selection of a suitable fish collection contractor, collections may also be accomplished using back pack electrofishing techniques, hook and line, trot lines, traps, or gillnets. In any case, the collection contractor will implement measures necessary to ensure that samples are collected and handled properly with minimal contamination and that each sampling reach is GPS verified. Field sampling efforts will continue at each location until either the primary or secondary target fish samples have been collected with a sufficient number of individuals. A minimum of three different species with six individuals will be collected from each location. Thus, fish collections are expected to result in a minimum of 36 laboratory samples for individual fish analysis (plus 4 duplicates) for arsenic, cadmium, and zinc. Regardless of collection method, the successful contractor will have knowledge, skills, and experience with all sampling techniques used to obtain fish samples. All personnel involved with electrofishing or other methods employed will be familiar with operational and safety procedures. At least two fish tissue samples will be duplicated for laboratory analysis at each location regardless of the total number of individual fish collected at each location. If field sampling approaches for fish collections are not successful in obtaining sufficient individuals (18 per site) for laboratory analysis NCDWR will be consulted to determine appropriate modifications. 4 1 P a g e Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 Field Data Sheet #1 and Field Data Sheet #2 will document Fish Tissue Collection Results on the day(s) of Field sampling. One set of Data Sheets (2) will be completed for each location for each day sampling is conducted. Field Data Sheet #1 Fish Tissue Collections: Broad River downstream American Zinc Products Discharge. Collection Date: Location: Study Reach Start From: Latitude: Longitude: Study Reach Finish at: Latitude: Longitude: Nearest Landmark at Start of Reach: Highway 221 bridge over the Broad River Rutherford Co. Duration of Daily Collection Activities: Hours: Minutes: Collection Staff. (list name and affiliation: example John Doe, Agency Blue Inc. Describe Collection Methods: (ex. Electrofishing Boat, Back Pack electrofishing, hook and line, trot lines, traps, or gillnets). Describe: Comment and Describe Access to River: ( example boat ramp, bank, bridge etc.) Each day of sampling personnel must fill out the following table ((Field Data Sheet #2) completing information for all individual fish. Any deviation from this Sampling Plan must be noted and described on daily records. Exceptions to Sampling Plan if any: 5 1 P a g e Fish Tissue Sampling Plan American Zinc Recycling NPDFS NC0089109 Field Data Sheet #2 Fish # Sample Location Species ID Total Length in cm Weight in grams Comments 1 Date of collection: 2 3 Lat/Long Site Coordinates The upstream extent was: Latitude: Longitude: The Downstream extent was: Latitude: Longitude: Reach Length in miles (include decimals) 4 5 6 7 8 9 10 11 12 13 Fish Collection Goal per location 3 Target Species Ten fish per Species: 30 fish total 14 15 16 17 Primary Target Species Include largemouth bass redbreast sunfish notchlip redhorse sucker 18 19 20 21 22 23 24 Secondary Target Species Include bluegill sunfish brassy jumprock white sucker flat bullhead catfish carp others 25 26 27 28 29 30 31 Dup #1 of Fish Sample # 32 Dup#2 of Fish Sample # Additional Comments: 61 age Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 Analytical Requirements — Fish Tissue Samples will be analyzed by a North Carolina Laboratory certified by the Division of Water Resources. All fish tissue samples will be analyzed for total arsenic, cadmium, and zinc. Laboratory analytical capabilities will be evaluated and compared to the DWR PQL reporting limits for arsenic, cadmium, and zinc prior to contractor selection. At least two fish tissue samples will be duplicated for laboratory analysis at each location regardless of the total number of individual fish collected at each location. Sample Handling and Delivery/Shipment Fish tissue samples collected for analyses must be processed and delivered/shipped to the selected certified laboratory in order to prevent decomposition or contamination. In all activities the selected contractor will avoid potential sources of arsenic, cadmium, and zinc contamination — i.e. no use of galvanized buckets, no cigarette smoking, powderless nitrile gloves will be worn in all fish handling activities. Fish will be removed from plastic live wells, holding tanks, or buckets, and rinsed with ambient water to remove foreign matter, and placed on a clean or new protective surface (i.e. aluminum foil) for sorting, weighing, length measurements, and wrapping. All samples will be processed individually. No fish will be composited into composite samples. • An individual whole fish wet weight will be determined for each fish to the nearest gram and recorded on Field Data Sheet #2. All individual samples will be weighed on scalesibalances that are properly calibrated and of adequate accuracy and precision to weigh samples to the nearest gram. Scales and or balances will be checked for calibration at the beginning of each weighing session. • A total length will be determined for each fish to the nearest centimeter using a length board such as the Wildco® Model 118 and recorded on Field Data Sheet #2). Individual fish will be identified to species under the supervision of an experienced staff familiar with North Carolina fish. Fish will be identified using current, identification manuals and other appropriate taxonomic literature (i.e.: Menhinick, E. F. 1991). • Skins on fish selected for analysis will be examined for breaks or lacerations from sampling gear as a possible source of contamination. Fish samples will be identified by species and sorted by species before any packaging or processing for delivery/shipment to the certified laboratory. • Fish selected for metals analysis will be weighed and measured for length. Fish will be individually wrapped and labeled with sample number, species name, weight, and length in appropriate arsenic, cadmium, and zinc free wrap (i.e. new aluminum foil) and placed by species in polyethylene bags. After removing as much air as possible, the bags will be closed and tagged with the date, time, station name, species, and collector(s). • All fish (in bags) will be placed on wet ice and chilled to 4 degrees C for transport to either the certified laboratory or other suitable tissue processing location for preparation of fillet samples within 48 hours. • All fish will be processed as fillet samples. No fish samples for whole body metals analysis will be sent to the certified laboratory for whole body metals analysis. • All bass and sunfish species will be processed as fish fillet samples with skin -on intact. • All Suckers, Catfish, and Bullheads, and Carp will be processed as fillet samples with skin -off (no skin included). 7 1 P a g e Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 Fish Tissue Sample Processing Procedures • Individual fish selected for filleting will be unwrapped and inspected carefully to ensure that they have not been compromised in any way (i.e., not properly preserved during shipment). Any specimen deemed unsuitable for further processing and analysis should be discarded and identified on the sample processing record. • Equipment used in processing fish samples for metals analysis will be free from arsenic, cadmium, and zinc contamination. As such, glass and plastic use will be prioritized. Only when necessary (i.e. knives) stainless steel will be used. Prior to preparing fish samples, all hard surfaces used in the processing will be washed with a detergent and rinsed with verified metal free water (treated by reverse osmosis — R.O.). Any necessary utensils and containers will be thoroughly cleaned and rinsed with tap water, soaked in 50 percent HNO3 (at least reagent grade) for 12 to 24 hours, and then rinsed with metal -free water. • All processing will be performed on surfaces covered with heavy duty aluminum foil. Aluminum foil will be rinsed with R.O. water between fish or new foil will be used. Filleting will be performed using talc free disposable gloves. Gloves will be rinsed between samples to prevent cross contamination. Fillets will be resected using high grade stainless steel knives. Knives are rinsed with R.O. water between fish species from the same station. • Fillets will be removed from the lateral area of the fish behind the head and pectoral fin and will include the belly flap. Extreme care will be taken not to cut into the gut cavity as it may contaminate the fillet tissue. • Filleting will be done on cutting boards covered with heavy duty aluminum foil that is changed after each filleting. Fillet tissues will be removed from whole fish with clean, high quality, corrosion -resistant stainless steel or with titanium blade knives and polypropylene handles. • Skin -on fillets will be processed by removing scales from the intact fish. Fish will be scaled prior to filleting using an automatic rotary scaler or hand scaler. Fish will then be rinsed with R.O. water to remove slime and foreign matter. Any scaling instruments will also be rinsed between fish to prevent contamination. The scale free fish fillet will be finely minced using the same knives to prepare individual fillet homogenates to ensure equal distribution of contaminants throughout the sample. These individual fillet tissue homogenates will be stored in heavy duty aluminum foil and appropriately labeled for delivery to the certified laboratory for chemical analysis. Where possible the final individual homogenized sample should be composed of approximately 100 g of tissue to ensure an adequate amount of material for analysis. Since samples will be composed of individual fish fillets it may not be possible to achieve 100g of sample in every case. • Fish fillet for skin -off analysis will be separated from the skin using knives. Fish will be skinned prior to filleting for all catfish and bullheads. Sucker and Carp fillets will be separated from the fish body and subsequently separated from the skin using knives. The skin free fish fillet will be finely minced using the same knives to prepare individual fillet homogenates to ensure equal distribution of contaminants throughout the sample. These individual fillet tissue homogenates will be stored in heavy duty aluminum foil and appropriately labeled for delivery to the certified laboratory for chemical analysis. Where possible the final individual homogenized sample should be composed of approximately 100 g of tissue to ensure an adequate amount of material for analysis. 8 1 P a g e Fish Tissue Sampling Plan American Zinc Recycling NPDFS NC0089109 Commercial Certified laboratories in North Carolina, South Carolina and Tennessee Cert # I Lab Name Lab Contact Lab Addressl Lab City State Zip Phone I E-mail Address 1 Beacham Labs- Division of Environmental Chemists Ray Porter 6602 Windmill Way Wilmington NC 28405- 910-392-0223 ray@environmentalchemists.com 10 Environment 1 Inc. Mark Oliveira P.O. Box7085 Greenville NC 27835- 252-756-6208moliyeira@environmentlinc.com 11 Microbac Laboratories Inc. James Williams 2592 Hope Mills Road Fayetteville NC 28306- 910-864-1920 iames.williams@microbac.com 12 Pace Analytical Services LLC - Huntersville NC Cheryl Johnson _ 9800 Kincey Avenue, Suite 100 Huntersville NC 28078- 704-875-9092 iCheryi.Johnson@pacelabs.com 20 PAR Laboratories Inc. Russell Everett Box 411483 Charlotte NC 28273- 704-588-8333 russ_everett@parlabs.com 22 Vann Laboratories James W. Vann P.O. Box 668 Wallace NC 28466- 910-285-3966 waynevannl@yahoo.com 34 Research &Analytical Laboratories Sidney L. Champion P.O. Box473 Kernersville NC 27285- 336-996-2841 info(randalabs.com 37 TBL Environmental Laboratory Inc. Pamela S. Hester P.O. Box 589 Lumberton NC 28359- 910-738-6190 pam.hester-tbl@hotmail.com 40 Pace Analytical Services LLC - Asheville NC Barry Johnson 2225 Riverside Drive Asheville NC 28804- 828-254-7176 barry.johnson@pacelabs.com 50 Water Tech Labs Inc. La Fayette A. Gragg P.O. Box 1056 Granite Falls NC 28630- 828-396-4444 mistysmith@watertechlabs.com 57 Environmental Inc. AnthonyTirona P.O. Box954 Cullowhee NC 28723- 828-586-5588 environmentalinc@aol.com 67 Pace Analytical Services LLC - Raleigh NC Barry Johnson 4915 Waters Edge Drive Suite 125 Raleigh NC 27606- 919-834-4984 barry.johnson@pacelabs.com 94 Environmental Chemists Inc. (Envirochem) Ray Porter 6602 Windmill Way Wilmington NC 28405- 910-392-0223 Ray@environmentalchemists.com 165 Meritech Inc. David Merritt P.O. Box 27 Reidsville NC 27323- 336-342-4748 david.merritt@meritechlabs.com 177 Water& Sewer Authority of Cabarrus County Cayce Atkinson 6400 Breezy Lane Concord NC 28025- 704-788-4164 cayceatkinson@wsacc.org 192 Charlotte Water- Environmental Laboratory Services Rhonda Hutson 4222 Westmont Drive Charlotte NC 28217- 704-336-3690 rhutson@ci.charlotte.nc.us 210 City of Gastonia - Crow_ders Creek Laboratory Annette McMurray P.O. Box 1748 Gastonia NC 28054- 704-854-6658 annettem@tworiversutilities.com 235 Cherokee WWTP Laboratory Michael Bolt P.O. Box 547 Cherokee NC 28719- 828-359-6772 michbolt@nc-cherokee.com 245 Perdue Incorporated Tina B. Rawls P.O. Box460 Lewiston Woodville NC 27849- 252-348-4400 Tina.Rawls@perdue.com 275 Blue Ridge Labs David Wessinger P.O. Box 2940 Lenoir NC 28645- 828-728-0149 blueridgelabslenoir@gmail.com 352 Earth Environmental Services Mark Bentley 75 Bison Lane Murphy NC 28906- 828-837-9543 ceaderwvnn(vahoo.com 402 Prism Laboratories Inc. Paul Fitzgerald P.O. Box 240543 Charlotte NC 28224- 704-529-6364 pfitzgerald@prismlabs.com 440 Statesville Analytical Holdings LLC Dena Myers P.O. Box 228 Statesville NC 28687- 704-872-4697 dmyers@statesvilleanalytical.com 481 SGS North America Inc. - Wilmington Jeannie Milholland 5500 Business Drive Wilmington NC 28405- 910-350-1903 jeannie.milholland@sgs.com 482 James & James Environmental Management Inc. Juanita James P.O. Box 519 Mountain Home NC 28758- 828-697-0063 jjemilabmgr@yahoo.com 544 Water Quality Labs Inc. Paul Isenhour P.O. Box1167 Banner Elk NC 28604- 828-898-6277 paul.isenhour@gmail.com 559 K& W Laboratories Gosia Kraska 1121 Hwy. 24/27 W Midland NC 28107- 704-888-1211 wioleta@kwlaboratories.com 572 Agronomic Division Laboratory- NCDA Colleen Hudak -Wise 1040 Mail Service Center Raleigh NC 27699- 919-733-2655 Colleen. Hudak@ncagr.gov 591 Environmental Conservation Laboratories Inc. Dale Mori 102 Woodwinds Industrial Ct. Ste. A Cary NC 27511- 919-467-3090 dmori@encolabs.com 600 Environmental Testing Solutions Inc. Kelley E. Keenan P.O. Box 7565 Asheville NC 28802- 828-350-9364 Kelley@etsnclab.com 602 Statesville Analytical Holdings, LLC Dena Myers 4350 Sea Pines Drive Southport NC 28461- 910-617-1353 StephanieM1950@amail.com 604 Element One Inc. Ken Smith 6319-D Carolina Beach Rd Wilmington NC 28412- 910-793-0128 ellab@ellab.com 628 Environmental Chemists Inc./Outer Banks Div. Ray Porter P.O Box 2228 Manteo NC 27954- 252-473-5702 ray@environmentalchemists.com 633 Pace Analytical Services LLC - Eden NC Barry Johnson 205 East Meadow Road - Suite A Eden NC 27288- 828-254-7176I Barry.johnson@pacelabs.com 638 Aquatic Ecology Lab- UNCW Center for Marine Science Matthew McIver 5600 Marvin Moss Lane Wilmington NC 28409- 910-962-2357'mciverm@uncw.edu 654 Cameron Testing Services Inc. Chris Cameron 219 S. Steele Street Sanford NC 27330- 919-208-4240 chris@camerontesting.com 677 First Analytical Laboratories NC, LLC Matt Loftis 4620-B Industry Lane Durham NC 27713- 919-942-8607 ialexa.cross@enthalpy.com 687 RTI International Andrea McWilliams 3040 E. Cornwallis Road RTP NC 27709- 919-485-5520 acm@rti.org 27 Rogers & Callcott Engineers Inc. M ieliel sa Ramey P.O. Box 5655 Greenville SC 29606- 864-232-1556 melisa.ramey@rogersandcallcott.com 233 GEL Laboratories LLC Nancy Mattern P.O. Box 30712 Charleston SC 29417- 843-556-8171 nancy.mattern@gel.com 329 Shealy Environmental Services Inc. Stephanie Atkins 106 Vantage Point Dr. West Columbia SC 29172- 803-227-3167 satkins@shealylab.com 686 ETT Environmental Inc. Robert W. Kelley P.O. Box 16414 Greenville SC 29606- 864-877-6942 bobkelley@ettenvironmental.com 64 TestAmerica Knoxville Kevin McGee 5815 Middlebrook Pike Knoxville TN 37921- 865-291-3000 kevin.mcgee@testamericainc.com 375 Pace Analytical Shari Pfalmer 12065 Lebanon Road Mt. Juliet TN 37122- 615-773-9755 spfalmer@pacenational.com 387 TestAmerica Nashville Glenn Baun 2960 Foster Creighton Drive Nashville TN 37204- 615-301-5739 glenn.baun@testamericainc.com 415 Waypoint Analytical LLC Richard Medina 2790 Whitten Road Memphis TN 38133- 901-213-2447 rmedina@waypointanalytical.com 9 1 0 a g e Fish Tissue Sampling Plan American Zinc Recycling NPDES NC0089109 Examples of Some Potential Electrofishing Contractors CZR Inc. Environmental Consultants hLtp:Hczr-inc.com/index.]2hp?go=home.main 4709 College Acres Drive Suite 2 Wilmington, NC 28403-1725 (910) 392-9253 Foster Lake & Pond Management https://fosterlake.com/fisheries-mgmt/ 9020 White Oak Road P.O. Box 1294 Garner, NC 27529 Raleigh, NC (919)772-8548 Charlotte, NC (704)344-9800 Aquatic Environmental Services, INC. http://Iakework.com/ 2050 Howell Bridge Road Ball Ground, GA 30107 United States Phone: 770-735-3523 Platinum Ponds and Lake Management htti)s://www. DlatinumlakemanaL,ement. com/solutions/fisheries/electrofishin Greenville, SC Charlotte, NC 1361 W. Hampton Blvd, Suite F 3611 Mt Holly-Huntersville Rd, Ste. 204 Greer, SC 29650 Charlotte, NC 28216 864-381-7663 704-816-0526 Solitude Lake Management https://www.solitudelakemanaizement.com/ Charlotte: 980.248.2979 Raleigh: 984.444.2548 101 .-1ag(. Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 Taxonomic References for Fish Identification Boschung, H. T. and R. L., Mayden. 2004. Fishes of Alabama. Smithsonian Books, Birmingham,AL. Marcy, B. C., D. E. Fletcher, F. D. Martin, M. H. Paller, M. J. M. Reichert. 2005. Fishes of the Middle Savannah River Basin with Emphasis on the Savannah River Site. University of Georgia Press. Athens, GA. Menhinick, E. F. 1991. The Freshwater Fishes of North Carolina. North Carolina Wildlife Resources Commission, Raleigh, N.C. Murphy, B. R. and D. W. Willis. 1996. Fisheries Techniques. American Fisheries Society. Bethesda, MD. Jenkins, R. E. and N. M. Burkhead. 1993. Freshwater Fishes of Virginia. American Fisheries. Society, Bethesda, MD. Page, L. M. and B. M. Burr. 1991. A Field Guide to Freshwater Fishes. Houghton Mifflin Co., Boston, MA. 111 ,-1ag(. Fish Tissue Sampling Plan American Zinc Recycling NPDFS NCO089109 ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Dlrectar Mr. Robert Williamson, Plant Manager American Zinc Products, LLC 484 Hicks Grove Road Mooresboro, North Carolina 28114 Dear Mr. Williamson: NORTH CAROLINA Environmental Quality April 18, 2019 Subject: Final NPDES Permit Permit NCO089109 American Zinc Products, LLC Rutherford County Grade II PCWPCS Division personnel have reviewed and approved your application for a renewal of the subject permit. Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). No major changes were made to the draft permit sent to you on January 29, 2019. The final permit maintains the following significant changes identified in the letter sent on January 29, 2019: • The flow limit was increased to 0.98 MGD • The requirement for fish tissue monitoring was added to the permit to address a comment from the Regional Office. • The requirement for pollutant scan was added to the permit to address a comment from the Regional Office. • The limits for Total Cadmium were recalculated (reduced) based on the new flow estimate and the recent update to the North Carolina water quality standards. A cadmium limit compliance schedule was added to the permit. • The limits for Total Chromium, Total Lead, and Total Fluoride were removed from the permit based on the results of the Reasonable Potential Analysis. • Quarterly monitoring for Hexavalent Chromium was added to the permit based on the review of the effluent data. ef 5-'fDUE Q5 "ilk Carabnb Wpan flw of ErMrorek-Nal Quell[y i MvMn ad Wmey ldmmm 512 46,7hMrAb.ty W*V 11617MI 50YtWd C.rrlW I Mek*NtJiN Cafaria2N09-1611 419.747.3681 Permit NCO089109 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PF.RMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, American Zinc Products, LLC is hereby authorized to discharge wastewater from a facility located at American Zinc Products, LLC Forest City Rutherford County to receiving waters designated as the Broad River in the Broad River Basin in accordance with effluent limitations, monitoring requirements, and other applicable conditions set forth in Parts I, II, III and IV hereof. This permit modification shall become effective June 1, 2019. This permit and authorization to discharge shall expire at midnight on July 31, 2023. Signed this day April 18, 2019. hard copy signed by Julie Grzyb Linda Culpepper, Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 9 Permit NCO089109 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. American Zinc Products, LLC is hereby authorized to: 1. Operate the process effluent discharge system including the following components: ➢ Automatic sampler ➢ Instrumented flow measurement, and ➢ Diffuser The facility is located near Forest City, Rutherford County; and 2. Discharge effluent from this location as specified on the attached map into the Broad River which is classified WS-IV waters in the Broad River Basin. Page 2 of 9 Permit NCO089109 Part I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored5 by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUREMENTS Monthly Average Daily Maximum Measureme nt Frequency Sample Type Sample Locationl Flow (MGD) 0.98 Continuous Recording I or E Total Suspended Solids, m L 2/Month Composite E NH3-N, mg/L Quarterly Composite E Total Aluminum, µg/L Quarterly Composite E Total Antimony, µg/L Quarterly Composite E Total Arsenic, µg/L Quarterly Composite E Total Cadmium 90.4 µg/L6 454.4 µg/L6 2/Month Composite E Chlorides, mg/ L Quarterly Composite E Chromium (VI), µg/L Quarterly Composite E Total Cobalt, µg/L Quarterly Composite E Total Copper, µg/L Quarterly Composite E Total Fluoride, mg/L Quarterly Composite E Total Iron, mg/L Quarterly Composite E Total Lead, µg/L 2/Month Composite E Total Nickel, µg/ L Monthly Composite E Total Tin, µg/L Quarterly Composite E Total Zinc, µg/L 2/Month Composite E pH2 6.0 < pH < 9.0 Daily Grab E Chronic Toxicity3 Quarterly Composite E Turbidityy4 j Monthly j Grab NOTES: 1. Sample Locations: I - Influent, E - Effluent, U - upstream (50 ft. upstream of the discharge), D - downstream (50 ft. downstream of the discharge). 2. The pH shall not be less than 6.0 standard units or greater than 9.0 standard units. 3. Chronic Toxicity (Ceriodaphnia) P/F @ 0.9%; Jan., April, July, and October; See condition A. (2.) of the Supplement to Effluent Limitations and Monitoring Section of this permit. 4. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the discharge cannot cause turbidity to increase in the receiving stream. Therefore, if the effluent measurement exceeds 50 NTU, the Permittee shall sample upstream and downstream turbidity in the receiving waterbody, within 24 hours, to demonstrate the existing turbidity level in the receiving waterbody was not increased. All data shall be reported on the DMRs. (See 15A NCAC 2B .0211 (21)). NTU - Nephelometric Turbidity Unit. Page 3 of 9 Permit NCO089109 5. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A. (3.). 6. The limit becomes effective 90 months from the effective date of the permit. Please see A. (6.) for Compliance Schedule. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR FOAM VISIBLE IN OTHER THAN TRACE AMOUNTS. A. (2.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY) [ I SA NCAC 02B .0200 et seq.] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 0.9%. The permit holder shall perform at a minimum, puarterlu monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be performed during the months of January, April, July and October. These months signify the first month of each three-month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -December 2010) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-3 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, NC 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Assessment of toxicity compliance is Page 4 of 9 Permit NCO089109 based on the toxicity testing quarter, which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part Il of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) • Section D. (6.) • Section E. (5.) Reporting Records Retention Monitoring Reports 1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)] The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be Page 5 of 9 Permit NC0089109 submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Starting on December 21, 2020, the permittee must electronically report the following compliance monitoring data and reports, when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports; and • Clean Water Act (CWA) Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: https://www.federalre ig ster.gov/documents/2015/10/22/2015-24954/national-pollutant- discharge-elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http: / /deg.nc.gov/about/divisions/water-resources/edmr Page 6 of 9 Permit NCO089109 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. 11. d All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty 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 the person or persons who 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 aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " 5. Records Retention [Supplements Section D. (6.11 The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.411. A. (4.) FISH TISSUE MONITORING [G.S. 143-215.1(b)] The facility shall conduct fish tissue monitoring once during the permit cycle and submit the results with the NPDES permit renewal application. The objective of this monitoring is to evaluate potential uptake of pollutants by fish tissue near the facility's discharge. The parameters analyzed in fish tissue shall be arsenic, cadmium, and zinc. The monitoring shall be conducted in accordance with the sampling plan approved by the Division. The plan should be submitted to the Division within 180 days from the effective date of the permit modification. Upon approval, the plan becomes an enforceable part of the permit. Copies of all the study plans, study results, and any other applicable materials should be submitted to: 1) Electronic Version Only (pdf and CD) Division of Water Resources WQ Permitting Section - NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 2) Electronic Version (pdf and CD) and Hard Copy Division of Water Resources Water Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 Page 7 of 9 Permit NCO089109 A. (5.) PRIORITY POLLUTANT ANALYSIS [G.S. 143-215.1(b)] The Permittee shall perform one Effluent Pollutant Scan for all parameters listed below. The analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ether Chlorine (total residual, TRC) 1, 1 -dichloroethylene Bis (2-chloroisopropyl) ether Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate Oil and grease Methyl bromide 2-chloronaphthalene Phosphorus Methyl chloride 4-chlorophenyl phenyl ether Total dissolved solids Methylene chloride Chrysene Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate Antimony Tetrachloroethylene Di-n-octyl phthalate Arsenic Toluene Dibenzo(a,h)anthraccnc Beryllium 1, 1, 1 -trichloroethane 1,2-dichlorobenzene Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene Chromium Trichloroethylene 1, 4-dichlorobenzene Copper Vinyl chloride 3,3-dichlorobenzidine Lead Acid -extractable compounds: Diethyl phthalate Mercury (EPA Method 1631E) P-chloro-m-cresol Dimethyl phthalate Nickel 2-chlorophenol 2,4-dinitrotoluene Selenium 2, 4-dichlorophenol 2, 6-dinitrotoluene Silver 2,4-dimethylphenol 1,2-diphenylhydrazine Thallium 4,6-dinitro-o-cresol Fluoranthene Zinc 2,4-dinitrophenol Fluorene Cyanide 2-nitrophenol Hexachlorobenzene Total phenolic compounds 4-nitrophenol Hexachlorobutadiene Volatile organic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene Acrolein Phenol Hexachloroethane Acrylonitrile 2, 4, 6-trichlorophenol Indeno (1, 2, 3-cd) pyrene Benzene Base -neutral compounds: Isophorone Bromoform Acenaphthene Naphthalene Carbon tetrachloride Acenaphthylene Nitrobenzene Chlorobenzene Anthracene N-nitrosodi-n-propylamine Chlorodibromomethane Benzidine N-nitrosodimethylamine Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine 2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene Chloroform 3,4 benzofluoranthene Pyrene Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobcnzene 1,1-dichloroethane Benzo(k)fluoranthene 1,2-dichloroethane Bis (2-chloroethoxy) methane Reporting. The effluent pollutant scan shall be performed once during the permit cycle and test results shall be submitted to the Division within 270 days of the sampling. Page 8 of 9 Permit NCO089109 A. (6.) CADMIUM COMPLIANCE SCHEDULE [G.S. 143-215.1(b)] Activity Description Deadline 1 • Commence production of Zinc at Mooresboro Facility. June 1, 2019 2. Ramp -up production to 75%. December 1, 2019 3• Stabilize plant operation and commence evaluation of permit June 1, 2020 compliance. 4. Complete evaluation period. June 1, 2021 5• Prepare a Preliminary Engineering Report (PER) of process December 1, 2021 alternatives and/or pollution prevention/waste minimization (parallel with activity 4) alternatives designed to achieve compliance. This report would include the results of the compliance evaluation. Submit to DWR for review and comment. 6. Agency review and addressing comments February 1, 2022 7. Bench scale test work of process alternatives (start in parallel April 1, 2020 with Activity 6). 8. Evaluate business case and funding requirements for April 1, 2022 technically suitable alternative(s). (parallel with activity 7) 9• Complete pilot test work for selected technology option(s) and August 1, 2022 final technology selection. Develop a summary of the results of this evaluation. Submit summary to DWR for review. 10. Agency review and addressing comments October 1, 2022 11. Detailed engineering and design of selected option. Submit to February 1, 2023 DWR for comment. 12. Agency review and addressing comments April 1, 2023 13. Prepare capital project application and secure funding for June 1, 2023 selected option, obtain building permits and all needed (much of this work will be done in approvals for implementation. parallel with activities 11,12) 14. Project implementation, including design completion, June 1, 2024 procurement and construction. 15. Commission and ramp -up. June 1, 2025 16. Stabilize operation and evaluate performance. December 1, 2025 17. Make necessary final modifications to optimize and obtain full August 1, 2026 operational status. 18• Achieve full compliance. December 1, 2026 Page 9 of 9 The Division is unable to grant your request for changing the Fish Tissue Monitoring Special Condition, the Division used the standard language that applies to all the facilities required to monitor fish tissue. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental regulations. If you have any questions concerning this permit, please contact Sergei Chernikov at (919) 707-3606 or via email at sergei.chernikov@ncdenr.gov. Sincerely, Linda Culpepper, Director Division of Water Resources, NCDEQ Hardcopy: NPDES Files Central Files E-copy: DWR/Asheville Regional Office/Water Quality DWR/Aquatic Toxicology Branch Page 2 of 2