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HomeMy WebLinkAboutNC0003875_Minor Mod_20160627National Pollutant Discharge Elimination System Individual Permit Application Modification Elementis Chromium Castle Hayne, New Hanover County, North Carolina May 2016 Prepared for: Elementis Chromium 5408 Holly Shelter Rd Castle Hayne, North Carolina 28429 Prepared by: SCIENCE d ENGINEERING PICC Coury Science & Engineering, PLLC 471 Royal Tern Drive Hampstead, North Carolina 28443 JUN 0 2 2016 Water QUalit Permitting Section Elementis Chromium NPDES Permit Application Section 1: Introduction .................. Permit Request and Permit Fees March 2016 4 4 FacilityInformation...................................................................................................................................................4 DocumentOrganization............................................................................................................................................4 Section 2: Site Information Site Location ................... 5 5 Description of Manufacturing Process...................................................................................................................... 5 SiteMap.................................................................................................................................................................... 6 Section3: Proposed Modification................................................................................................................................ 6 DescriptionProposed Change................................................................................................................................... 6 EstimatedEffluent Data............................................................................................................................................ 6 Section 4: Engineering Alternatives Analysis............................................................................................................... 7 Allowable Proposed Discharge................................................................................................................................. 7 Streamflow Restrictions....................................................................................................................................... 7 Receiving Stream Classification Restrictions........................................................................................................ 7 Zoning................................................................................................................................................................... 7 FlowProjections....................................................................................................................................................... 7 Technologically Feasible Alternatives....................................................................................................................... 8 Connection to Existing Wastewater Treatment Plant Land Application Wastewater Reuse.... 8 8 9 Surface Water Discharge Through NPDES Program.............................................................................................. 9 Combinationof Alternatives................................................................................................................................. 9 Economic Feasibility of Alternatives Wastewater Reuse .................................... 0 a Surface Water Discharge Through NPDES Program.............................................................................................. 9 Results of Economic Feasibility Alternatives...................................................................................................... 30 Report Certification 10 Section5: Application Form....................................................................................................................................... 11 Appendix1 Site Map............................................................................................................................................12 Appendix 2 Wastewater Flow Line Diagram...............................................................................................................13 Appendix 3 Priority Pollutant Analysis........................................................................................................................14 Appendix 4 Correspondance with USGS..................................................................................................................... 15 Appendix 5 Local Government Review Form.............................................................................................................. 16 Page 2 of 18 Elementis Chromium NPDES Permit Application March 2016 Appendix 6 USDA Soils Map — Spray Irrigation ............. Appendix 7 Economic alternative analysis cost details Page 3 of 18 Elementis Chromium NPDES Permit Application March 2016 Elementis Chromium (Elementis) currently operates under the authorization of NPDES Permit Number NC0003875 located at 5408 Holly Shelter Rd, Castle Hayne, NC 28443. Elementis manufactures sodium dichromate, chromic acid, sodium sulfate anhydrous, and salt cake at its Castle Hayne facility and is subject to 40 CFR 415. The facility is proposing to add an outfall that consists of treated quarry water supernatant with a limit of 576,000 gallons per day. PERMIT REQUEST AND PERMIT FEES The purpose of this application is to modify NPDES Permit Number NC0003875. This application is intended to satisfy all requirements of 15A NCAC 2H .0105. In accordance with the North Carolina (NC) Division of Water Resource (DWR) fee schedule, the fees associated with a major modification for Minor Individual NPDES permits is $260, which is being submitted with this application. Included in this package is one original and two copies of the application as required. Elementis is not required to obtain an Authorization to Construct (ATC) following issuance of the NPDES permit by the NC DWR. Session Law 2011-394, which became effective July 1, 2011, no longer requires ATC permits for wastewater generated from manufacturing facilities. FACILITY INFORMATION The physical and mailing address for Elementis Chromium is as follows: 5408 Holly Shelter Rd Castle Hayne, NC 28443 To facilitate review of this application, please contact the following individuals identified below. Preparer's Contact Information: Sean Coury, PE INC) Partner Coury Science & Engineering, PLLC (910) 319-0017 sean.coury@couryse.com DOCUMENT ORGANIZATION Facility's Contact Information: Calvin Overcash Regulatory Manager Elementis Chromium (910)675-7229 calvin.overcash@elementis.com This permit application is divided into five sections and various appendices. Tables are included throughout the document and are referenced in the table of contents. The seven sections and four appendices are as follows: Section 1 Introduction Section 2 Site Information Section 3 Effluent Description and Treatment Section 4 Engineering Alternatives Analysis Section 5 Application Form Refer to the table of contents for a detailed listing of tables and figures. Page 4 of 18 Elementis Chromium NPDES Permit Application March 2016 This section provides information on the site location, surrounding terrain, and description of industrial activities. SITE LOCATION Elementis is located in Castle Hayne, New Hanover County, North Carolina. The approximate coordinates are 36022'34" N, 77051'55" W. Process wastewater is discharged through outfall 001 and consists of groundwater remediation water, reject residue from the pH adjustment unit, stormwater from coal pile runoff, and recycle residue. Treated domestic wastewater is discharged through outfall 002 to the Northeast Cape Fear River. Waste sludge is disposed of as slurry and sent to a quarry permitted under non -discharge permit WQ0001492. The domestic sludge is land applied under WQ000783. The Northeast Cape Fear River is a class B; Swamp, PNA, HOW stream located in the Cape Fear River Basin. The Northeast Cape Fear River is on the 303(d) (Impaired Waters) list for Mercury. DESCRIPTION OF MANUFACTURING PROCESS Elementis produces sodium dichromate, chromic acid, and sodium sulfate from chromite ore, soda ash, lime and sulfuric acid. Chromite ore is first sent through a dryer and then pulverized to a powder in one (1) of four (4) on- site ball mills. The pulverized ore is combined with lime, sodium carbonate (soda ash), and recycle residue prior to being fed to one (1) of three (3) on-site kilns. The ore mixture is heated to approximately 2000 degrees Fahrenheit in the kiln. This treatment oxidizes the chromite ore, converting the majority of the chromium in the ore from trivalent to hexavalent chromium. The roasted mixture of pulverized ore, lime, recycled residue, and soda ash is quenched and leached with water in tanks, producing a sodium chromate solution and solid ore residues. After leaching, the mixture is sent through hydroclones to separate the sodium chromate solution from unconverted ore residue. The unconverted ore (recycle residue and post leach ore residue) is sent to the recycle residue process to be returned to the process to make up 50% of the initial kiln feed mixture. After the hydroclones, the leached sodium chromate mixture is neutralized with sulfuric acid or chrome contaminated acid generated from the chromic acid process from a 12 to 13 pH to a pH of 8.5. After neutralization, the mixture is sent through a primary and secondary rotary reject filter to separate the sodium chromate solution from the waste solid residue (reject residue or spent post neutralization ore residue). This reject residue is sent directly to the #3 Repulp Tank which operates as a holding tank prior to being sent to the wastewater treatment system. The sodium chromate is then sent through a calcium precipitator, a filter, and an acidifier where sulfuric acid and soda ash are added to reduce the pH to 5 and precipitate the remaining ore residues to convert the sodium chromate solution to sodium dichromate. The sodium dichromate is evaporated after leaving the acidifier and sent through a final filtering process. The liquid sodium dichromate is either crystallized to form a sodium dichromate solid crystal product or remains as liquid sodium dichromate and is piped to the chromic acid process to make chromic acid. Chromic Acid The sodium dichromate liquid, with an 85% concentration, is reacted with sulfuric acid to produce chromic acid. After reacting, the chromic acid solution is filtered, melted, and rolled to produce the chromic acid in solid flake Page 5 of 18 Elementis Chromium NPDES Permit Application March 2016 form. The air pollution control system in the chromic acid process is associated with the filtering, melting, conveyancing, and packaging processes. The melting and filtering processing is connected to the Main Scrubber and the conveyancing and packaging process is connected to the Packaging Scrubber. Both the Main Scrubber and the Packaging Scrubber is connected to the Brownian Demister before being vented to the atmosphere. The wastewater that exits the Packaging Scrubber is reused in the Neutralization square tank in the production of sodium dichromate. The wastewater from the Main Scrubber is sent to the #3 Repulp tank prior to being sent to the wastewater treatment system. There is a wastewater that is generated in the Brownian Demister Unit that is sent to the #3 Repulp tank prior to being sent to the wastewater treatment system. Sodium Sulfate After the acidifier in the production of sodium dichromate, the product stream is evaporated and centrifuged to separate sodium sulfate (saltcake) from the sodium dichromate solution. The sodium sulfate saltcake is sent to a salt cake purification unit for purification and then sold as purified sodium sulfate anhydrous. The wastewater residue from the saltcake purification unit is reinserted to the manufacturing process at the leach and filter unit. SITE MAP A site map depicting the facility and surrounding areas is located in Appendix 1. The quarry permitted under non - discharge permit WQ0001492 has been outlined in red. The facility outfall location has been denoted with a red star on the site map. A line diagram of the waste treatment facility is included in Appendix 2. This section describes the effluent that will be generated from the proposed quarry water return. The section also details the proposed method of wastewater treatment and disposal. DESCRIPTION PROPOSED CHANGE Residual solids from the wastewater treatment facility are disposed of as slurry and sent to a quarry permitted under non -discharge permit WQ0001492. In order to maintain freeboard in the surface disposal units (quarries), Elementis returns water from the surface disposal units to the wastewater treatment facility. As the quarries fill with solids, there is less room available for precipitation and river water used to slurry the residual solids to the surface disposal units. Therefore, Elementis is requesting to create a third outfall (outfall 003) to discharge treated supernatant from the surface disposal units in order to control freeboard as the surface disposal units are filled to capacity. #ilLSL\i\Z\���R�i�irL•\ �.� US EPA effluent limitations guidelines for Sodium Dichromate and Sodium Sulfate Production (40 CFR 429), Subpart Q, establishes limits for total suspended solids (TSS), hexavalent chromium, chromium, and nickel in terms of pounds per thousand pounds of production. The proposed new outfall (outfall 003) would not be subject to the effluent limitation guidelines found in 40 CFR 429, Subpart Q. Samples were collected from the supernatant in both Section 1 and Section 2 of the surface disposal unit and a priority pollutant analysis (PPA) was run on the samples. The analytical results are included in Appendix 3. Page 6 of 18 Elementis Chromium NPDES Permit Application March 2016 In accordance with 15A NCAC 2H .0105, an Engineering Alternatives Analysis (EAA) is required for any new wastewater discharge. This section contains the components of the engineering alternatives analysis including determination if the proposed discharge will be allowed, flow projections, evaluation of technically feasible alternatives, and evaluation of economically feasible alternatives. ALLOWABLE PROPOSED DISCHARGE Prior to evaluating alternatives, Elementis made the determination that the proposed wastewater discharge would be allowed. The following sections detail the evaluation that was conducted in order to confirm that the proposed wastewater would be an allowable discharge. The restrictions that could be imposed on a proposed wastewater discharge to surface waters include zero flow stream restrictions, receiving stream classifications, NPDES permitting strategies listed in the Basinwide Water Quality Plans, impaired water and Total Maximum Daily Load (TMDL) classifications. STREAM FLOW RESTRICTIONS Specific stream restrictions are listed in 15A NCAC 2B .0206(d)(2) for oxygen -consuming wastewater in zero -flow streams. In efforts to determine the 7Q10 flow at the proposed discharge location into the Northeast Cape Fear River, Mr. Curtis Weaver, with United States Geological Services (USGS), was contacted. Mr. Weaver indicated a check of the low -flow files at the USGS South Atlantic Water Science Center (SAWSC Raleigh office) indicates previous estimates at several nearby locations on the Northeast Cape Fear River very near the point of interest, based on the lat/long coordinates (34 22 34 N // 77 5155 W) provided. However, a note was also written on these estimates saying "tidal effects may exist." Mr. Weaver went on to further state that the Water Quality Permitting Section within the N.C. Division of Water Resources should be contacted to obtain further guidance concerning your efforts to obtain an NPDES permit for a location in a tidally -affected stream. A copy of the September 2012 fact sheet for NPDES permit development prepared by the NC Division of Water Resources indicates a 7Q10 of 25 cubic feet per second. A copy of the correspondence with the USGS is included in Appendix 4. RECEIVING STREAM CLASSIFICATION RESTRICTIONS The stream classification for the Northeast Cape Fear River is C (Class C), which does not impose stricter treatment standards than federal standards. The Northeast Cape Fear River is classified as swamp waters (Sw). Based on the characteristics of the proposed wastewater stream, effluent nitrogen and phosphorus quantities will be well within these specified limits. The North East Cape Fear River is listed on the 303(d) list for Mercury. The proposed new outfall is not expected to have mercury detections. The PPA conducted on the supernatant was non -detect for Mercury. ZONING The Elementis facility is zoned heavy industrial. A completed Local Government Review Form is included in Appendix S. FLOW PROJECTIONS Page 7 of 18 Elementis Chromium NPDES Permit Application March 2016 The population projections are not applicable to industrial facilities, but instead apply to domestic wastewater production for evaluation of an increase or decrease in population. The projected wastewater flows for Elementis are only dependent on the manufacturing operation, and would not be affected by changes in population. TECHNOLOGICALLY FEASIBLE ALTERNATIVES The section includes the evaluation of other technologically feasible alternatives for wastewater discharge. As listed in the NC Division of Water Resource's Engineering Alternatives Analysis (EAA) Guidance Document, the determination includes the evaluation of the technological feasibility of the following: 1. Connecting to an existing wastewater treatment plant 2. Land application through spray irrigation 3. Reuse of wastewater 4. Surface water discharge through NPDES permitting S. Combination of any of the alternatives CONNECTION TO EXISTING WASTEWATER TREATMENT PLANT The Elementis facility is located in an area that does not currently offer connection to a wastewater treatment facility. The closest pump station to the facility is the Vision Software pump station located approximately 2.3 miles from the Elementis facility. It is not currently feasible to hook up to an existing wastewater treatment plant. LAND APPLICATION Elementis owns 323 acres of land located about 1 mile from the surface disposal units. Soil types in the Elementis property were reviewed to evaluate the potential for disposing of the wastewater via land application (or spray irrigation). The neighboring Elementis owned property consists of primarily the following soil types: Leon Sand (Le), Murville Fine Sand (Mu), Johnston Soils (JO), and Stallings Fine Sand (St). Additionally, about 35 acres of the property is classified as wetlands. According to the soils report obtained from USDA, these soil types are classified as 'very limited' for disposal of wastewater by irrigation, meaning that the soils have at least one feature that make them unfavorable for disposal of wastewater by irrigation. As described in the USDA soils report, 'very limited' classifications typically means that "the limitations cannot be overcome without major soil reclamation, special design, or expensive installation procedures" The poor performance can be attributed to soil characterizations such as depth to saturated zone, filtering capacity, and high acidity. Appendix 6 includes a map from the USDA Custom Soil Resource Report which depicts the various soil types and classification for wastewater disposal by irrigation. NCDENR non -discharge rules (15A NCAC 02T Sections 0.0100-0.1600) and the coastal waste Treatment Disposal rules (15A NCAC 02H Section 0.0400) describe the limitations for land applications. The Elementis facility (New Hanover County) is located in a designated coastal area (15A NCAC 02H Section 0.0403(3)). Based on the USDA soils report, about 90% of the soils located at the Elementis property are classified as poorly drained or worst.. For cost estimation purposes, it is assumed that the highest application rate for low -rate application can be met in the soils located in the property adjacent to the facility. If the infiltration rate is lower, then the costs to accomplish infiltration would be much higher. The low -rate infiltration cutoff for designated coastal areas is 0.156 gallons per day per square foot (gpd/ft') (15A NCAC 02T 0.0702(1)). Therefore, the application of 0.578 MGD would require at least 3,703,205 ftz of property (85 Page 8 of 18 Elementis Chromium NPDES Permit Application March 2016 acres). Assuming the adjacent property to the Elementis facility is suitable for land, approximately 2.7 miles of piping would be required to transfer and apply the water over 85 acres. Based on the aforementioned analysis, land application is not technically feasible due to the poor drainage and very limited soil classification of the soils in the vicinity of the Elementis facility. WASTEWATER REUSE Water from surface disposal units is currently being reused. About 300 gallons per minute of supernatant is pulled from the surface disposal units and used to slurry the residual solids before being discharged to the surface disposal units. As previously discussed, required freeboard limitations are getting harder to manage as the life of the quarry is reduced even with reuse of 300 gpm. Elementis has evaluated the possibility of using the water in other portions of the process; however, the chloride content of the water is too high for use in the process. In order to use in the process, a reverse osmosis system would need to be installed to treat the water. SURFACE WATER DISCHARGE THROUGH NPDES PROGRAM The Elementis facility operates a wastewater treatment facility that currently authorized under NPDES Permit NC0003875 to discharge treated wastewater into the Northeast Cape Fear River. The water from the surface disposal unit would be returned to the wastewater treatment facility with existing equipment and discharged into the Northeast Cape Fear River under a newly defined outfall number, Outfall 003. COMBINATION OF ALTERNATIVES Water is currently already being reused, so each of the aforementioned alternatives includes reuse as part of the alternative. Discharge to surface waters is the least complicated option and will require the least amount of construction to implement. Land application was not determined to be technically feasible, therefore is not included in the combination of alternatives. ECONOMIC FEASIBILITY OF ALTERNATIVES This section addresses the economic feasibility of each of the technologically feasible engineering alternatives. Those alternatives that were considered technologically feasible and evaluated in this section are wastewater reuse and surface water discharge through the NPDES program. Each cost analysis includes the capital cost, recurring cost, and lost opportunity costs. The cost estimates are determined assuming 20 years of operation. The cost analyses are explained in detail below for each technologically feasible alternative. WASTEWATER REUSE Appendix 7-1 includes cost estimation details for wastewater reuse. The wastewater reuse option incudes costs for the purchase of a reverse osmosis water treatment system, operation and maintenance of the system, and sampling. The total present value cost analysis for wastewater resuse was found to be $472,236. SURFACE WATER DISCHARGE THROUGH NPDES PROGRAM Page 9 of 18 Elementis Chromium NPDES Permit Application March 2016 Appendix 7-2 includes cost estimation details for surface water discharge through the NPDES program. Discharge through the NPDES program will require a new 20,000 gallon carbon steel tank and about 900 feet of 8" PVC pipe. The total present value cost analysis for discharge through the NPDES program was found to be $151,682. RESULTS OF ECONOMIC FEASIBILITY ALTERNATIVES A summary the costs of each alternative considered are displayed in the table below. Alternative Total Cost (assumes 20 years of operation) Land Application Not Technically Feasible Wastewater Reuse $472,236 Surface Water Discharge (NPDES) $151,682 The alternative with the least economic impact is surface water discharge into the Northeast Cape Fear River. The discharge alternative is less than a third of the cost of the next closest alternative (wastewater reuse). REPORT CERTIFICATION This report was prepared by Coury Science and Engineering, PLLC. Coury Science and Engineering is licensed to practice engineering in the state of North Carolina (P-1120). I, Sean Coury, a North Carolina Professional Engineer for Coury Science and Engineering certify that the information contained in this report is correct and accurate to the best of my knowledge. �l✓1 Sean T Coury, PE (North Carolina PE Number 037855) Page 10 of 18 ..%..III//CAR/., Iz -Z�aQI FESS DO`/�% Z2; 0 4- SEAL 0`37855 41A,GINE�e'Q�,`� 4"ii i IcOJ�``\ Elementis Chromium NPDES Permit Application March 2016 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. Mail the complete application to: N. C. Department of Environment and Natural Resources Division of Water Quality / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 NPDES Permit Number INCO003875 Please print or type. 1. Contact Information: Owner Name Elementis Chromium Inc Facility Name Elementis Chromium Castle Hayne Plant Mailing Address 5408 Holly Shelter Rd City Castle Hayne State / Zip Code NC / 28429 Telephone Number 910-675-7229 Fax Number 910-675-7201 e-mail Address calvin.overcash@elementis.com 2. Location of facility producing discharge: Check here if same as above Street Address or State Road RF(:FIVFnMU`Dgmai WR City State / Zip Code VR r Uuality County Permitting Section 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORC) Name Elementis Chromium Mailing Address City State / Zip Code Telephone Number Fax Number 4. Ownership Status: Federal ❑ 5408 Holly Shelter Rd Castle Hayne NC /29429 910-675-7229 910-675-7201 State ❑ Private ® Public ❑ Page 1 of 7 C -MI 10/08 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 5. Standard Industrial Classification (SIC) code(s): 2819 6. Number of employees: 112 7. Describe the treatment system List all installed waste treatment components with capacities, describe the processes that generate wastewaters. If the space provided is not sufficient attach a separate sheet of paper with the system description. See attachments titled narrative description of wastewater treatment plant and narrative description of domestic wastewater treatment plant. S. Is facility covered under federal effluent limitation guidelines? No ❑ Yes If yes, specify the category? Sodium Dichromate and Sodium Sulfate Production Subcategory of Inorganic Chemicals Manufacturing (40 CFR Part 415 Subpart OI 9. Principal product(s) produced: Sodium Dichromate, Chromic Acid, Sodium Sulfate Anydrous Principal raw materials) consumed: Chromium Ore, Soda Ash, Lime and Sulfuric Acid Briefly describe the manufacturing process(es): Elementis produces sodium dichromate, chromic acid, and sodium sulfate from chromite ore, soda ash, lime and sulfuric acid. Chromite ore is first sent through a dryer and then pulverized to a powder in one (1) of four (4) on-site ball mills. The pulverized ore is combined with lime, sodium carbonate (soda ash), and recycle residue prior to being fed to one (1) of three (3) on-site kilns. The ore mixture is heated to approximately 2000 degrees Fahrenheit in the kiln. This treatment oxidizes the chromite ore, converting the majority of the chromium in the ore from trivalent to hexavalent chromium. The roasted mixture of pulverized ore, lime, recycled residue, and soda ash is quenched and leached with water in tanks, producing a sodium chromate solution and solid ore residues. After leaching, the mixture is sent through hydroclones to separate the sodium chromate solution from unconverted ore residue. The unconverted ore (recycle residue and post leach ore residue) is sent to the recycle residue process to be returned to the process to make up 50% of the initial kiln feed mixture. After the hydroclones, the leached sodium chromate mixture is neutralized with sulfuric acid or chrome contaminated acid generated from the chromic acid process from a 12 to 13 pH to a pH of 8.5. After neutralization, the mixture is sent through a primary and secondary rotary reject filter to separate the sodium chromate solution from the waste solid residue (reject residue or spent post neutralization ore residue). This reject residue is sent directly to the #3 Repulp Tank which operates as a holding tank prior to being sent to the wastewater treatment system. The sodium chromate is then sent through a calcium precipitator, a filter, and an acidifier where sulfuric acid and soda ash are added to reduce the pH to 5 and precipitate the remaining ore residues to convert the sodium chromate solution to sodium dichromate. The sodium dichromate is evaporated after leaving the acidifier and sent through a final filtering process. The liquid sodium dichromate is either crystallized to form a sodium dichromate solid crystal product Page 2 of 7 C -MI 10108 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. or remains as liquid sodium dichromate and is piped to the chromic acid process to make chromic acid. Chromic Acid The sodium dichromate liquid, with an 85% concentration, is reacted with sulfuric acid to produce chromic acid. After reacting, the chromic acid solution is filtered, melted, and rolled to produce the chromic acid in solid flake form. The air pollution control system in the chromic acid process is associated with the filtering, melting, conveyancing, and packaging processes. The melting and filtering processing is connected to the Main Scrubber and the conveyancing and packaging process is connected to the Packaging Scrubber. Both the Main Scrubber and the Packaging Scrubber is connected to the Brownian Demister before being vented to the atmosphere. The wastewater that exits the Packaging Scrubber is reused in the Neutralization square tank in the production of sodium dichromate. The wastewater from the Main Scrubber is sent to the #3 Repulp tank prior to being sent to the wastewater treatment system. There is a wastewater that is generated in the Brownian Demister Unit that is sent to the #3 Repulp tank prior to being sent to the wastewater treatment system. Sodium Sulfate After the acidifier in the production of sodium dichromate, the product stream is evaporated and centrifuged to separate sodium sulfate (saltcake) from the sodium dichromate solution. The sodium sulfate saltcake is sent to a salt cake purification unit for purification and then sold as purified sodium sulfate anhydrous. The wastewater residue from the saltcake purification unit is reinserted to the manufacturing process at the leach and filter unit. Page 3 d 7 GMI 10108 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 10. Amount of principal product produced or raw material consumed (List specific amounts consumed and/or units of production over the last three years) 11. Frequency of discharge: Continuous If intermittent: Days per week discharge occurs: Intermittent ❑ Duration: 12. Types of wastewater discharged to surface waters only Discharge Sodium Dichromate Production AVERAGE Sodium Dichromate Production PEAK per Day 240 tons/day 375 tons/day per Month 7300 tons/month 10,000 tons/month per Year 87,500 tons/year 105,000 tons/year 11. Frequency of discharge: Continuous If intermittent: Days per week discharge occurs: Intermittent ❑ Duration: 12. Types of wastewater discharged to surface waters only Discharge Flow GALLONS PER DAY Sanitary - monthly average 4,500 (average flow 2007 - 2011) Utility water, etc. - monthly average Process water - monthly average 633,000 (average flow 2007 - 2011) Stormwater - monthly average Other - monthly average Explain: Surface Disposal Unit 720,000 (proposed outfall 003) Discharge Monthly Average total discharge (all types) 637,500 (average flow 2007 - 2011) 13. Number of separate discharge points: 3 Outfall Identification number(s) 001, 002, 003 (proposed new outfall) 14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitudes Northeast Cape Fear River flat - 34 dee 22 min 34 sec, lone - 77 deg 51 min, 55 sec Page 4 of 7 C -MI 10/08 NPDES PERMIT APPLICATION — SHORT FORM C — Minor Industrial Minor industrial, manufacturing and commercial facilities. 15. Effluent Data [for new or proposed discharges] Provide data for the parameters listed. Temperature and pH shall be grab samples, for all otherparameters 24-hour composite sampling shall be used. If more than one analysis is reported, report daily maximum and monthly average. If only one analysis is reported, report as daily maximum. NOTE: Permittees requesting renewal should complete the table ONLY for the parameters currently monitored. Summarize the past 3 years of effluent data. 001 Out all May 2009 through May 2012 Parameter Daily Maximum Monthly Average Units of Measurement Biochemical Oxygen Demand (BODS) 4 1.11 mg/1 Chemical Oxygen Demand (COD) N/A N/A N/A Total Organic Carbon N/A N/A N/A Total Suspended Solids 134.5 31.1 lbs/day Ammonia as N 7.42 3.15 mg/l Temperature (Summer) 35 31.2 °C Temperature (Winter) 30 19.75 °C pH 8.18 7.07 Std units Fecal Coliform Of sanitary waste is present) N/A N/A N/A Total Residual Chlorine (if chlorine is used) N/A N/A N/A 002 Outfall May 2009 through May 2012 Parameter Daily Maximum Monthly Average Units of Measurement Biochemical Oxygen Demand (BODS) 33 1.95 mg/l Chemical Oxygen Demand (COD) N/A N/A N/A Total Organic Carbon N/A N/A N/A Total Suspended Solids 57.2 8.45 mg/1 Ammonia as N 10 0.57 mg/1 Temperature (Summer) 31.2 25.5 °C Temperature (Winter) 28.8 15.8 °C pH 7.85 6.76 Std units Fecal Coliform Of sanitary waste is present) 400 4.22 #/ 100 ml Total Residual Chlorine (if chlorine is used) 15150 3500 ug/l Page 5 of 7 C -MI 10108 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 16. List all permits, construction approvals and/or applications (check all that apply and provide permit numbers or check none if not applicable/: Type Permit Number Type Permit Number Hazardous Waste (RCRA) UIC (SDWA) NPDES PSD (CAA) Non -attainment program (CAA) NCDO57454670 NESHAPS (CAA) N/A N/A Ocean Dumping (MPRSA) N/A NC0003875 Dredge or fill (Section 404 or CWA) N/A 3712900055 Other - Title V Air Permit 02937T36 N/A Other - NPDES Stormwater Permit NCS000003 17. List any chemicals that may be discharged (Please list and explain source and potential amounts.) - Also see Priority Pollutant Analysis attached Chromium - typical less than detection, max 0.265 lb/day - source chromium manufact. Nickel - no detection in last 3 years - source chromite ore Cadmium - no detection in last 3 years - source chromite ore Copper - average 16.3 ug/1, max 46 ug/1- source chromite ore Mercury - average 7.6 ng/1, max 20.2 ng/1- source chromite ore, river water, sulfuric acid Lead - no detection last 3 years - source chromite ore Silver - no detection last 3 years - source chromite ore Zinc - average 7 ug/1, max 15 ug/l - source chromite ore Fluoride - max 0.19 mg/1- source chromium manufacturing Phosphorus - average 0.24 mg/1, max 2.2 mg/1 Sulfate - max 900 mg/1 - source chromium manufacturing Aluminum - max 0.462 mg/1- source chromite ore Iron - max 0.23 mg/1- source chromite ore Magnesium - max 46 mg/1- source chromite ore Manganese - max 0.03 mg/1- source chromite ore Page 6 of 7 C -MI 10108 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 18. Is this facility located on Indian country? (check one) Yes ❑ No ED 19. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. Calvin Overcash Regulatory Manager Printed name of Person Signing Title 05— 12 — 2—V11o, North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 7 of 7 C -MI 10108 TO +0 . c x l; .dSSd� Y.tV 6 tg LL rz x � 2 3.ii - y. y ��ti � •7 j Y^l; A T � 34 x N •.�. y R r - r fl a• ��� ..Y �L I` O7 �� � � • v tj ��dY� gy„� �� yR ✓� ,\ ,. l� ai lFA3a d! w # m r aF�ie',r | ) § § � 7°k © | � § | all ) k] `¢ TLd § ! | §/ ) §§ �/ ` q all |. ] -| all | |. | | m � •! !.. | " a o Environmental Chemists, Inc. enviroche7m 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax ® 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL 8. CONSULTING CHEMISTS info@environmentalchemists.com Elementis Chromium 5408 Holly Shelter Road Castle Hayne NC 28429 Attention: Walt Greer Date of Report: Mar 22, 2016 Customer PO #: Customer ID: 08110009 Report #: 2016-02966 Project ID: Lab ID Sample ID: Collect DatelTime Matrix Sampled by 16-06973 Site: #1 Quarry 3/7/2016 12:30 PM Water Dean Riggs Test Method Results Date Analyzed Antimony EPA 260.7 <0.01 mg/L 03/11/2016 Arsenic EPA 200.7 <0.01 mg/L 03/11/2016 Beryllium EPA 200.7 <0.01 mg/L 03/11/2016 Cadmium EPA 200.7 <0.01 mg/L 03111/2016 Chromium EPA 200.7 <0.01 mg/L 03/11/2016 Copper EPA 200.7 <0.01 mg/L 03/11/2016 Lead EPA 200.7 <0.01 mg/L 03/11/2016 Nickel EPA 200.7 <0.01 mg/L 03/11/2016 Selenium EPA200.7 <0.01 mg/L 03/11/2016 Silver EPA 200.7 <0.01 mg/L 03/11/2016 Thallium EPA 2017 <0.01 mg/L 03/11/2016 Zinc EPA 200.7 <0.01 mg/L 03111/2016 Mercury EPA 245.1 <0.0002 mg/L 0 3107/2 01 6 Cyanide EPA 335.4 <0.005mg/L 03/17/2016 Alachlor EPA608 <0.0002mg/L 03/09/2016 Aldrin FPA 808 <0.0002mg/L 03/09/2016 Alpha - BHC EPA 808 <0.00001 mg/L 03/09/2016 Aroclor-1016 EPAso6 <0.0005 mg/L 03109/2016 Aroclor -1221 EPA 506 <0.0005 mg/L 03/09/2016 Aroclor -1232 EPA 608 <0.0005 mg/L 03/09/2016 Aroclor - 1242 EPA 608 <0.0005 mg/L 03/09/2016 Aroclor - 1248 EPA608 <0.0005 mg/L 03/09/2016 Aroclor - 1254 EPA 608 <0.0005 mg/L 03/09/2016 Aroclor - 1260 EPA 608 <0.0005 mg/L 03/09/2016 Beta -BHC EPA 608 <0.00001 mg/L 03/09/2016 Butachlor EPA 808 <0.008mg/L 03/09/2016 Report #:: 2016-02986 Page 1 of 12 envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@cnvironmentalchemists.com Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 DDE Project ID: Chlordane EPA 608 <0.001 mg/L 03/09/2016 DDD EPA 608 <0.00001 mg/L 03/09/2016 DDE EPA608 <0.00001 mg/L 03/09/2016 DDT EPA 608 <0.00001 mg/L 03/09/2016 Delta -BHC EPA 608 <0.00001 mg/L 03/09/2016 Dieldrin EPA 608 <0.0002 mg/L 03/09/2016 Endosulfan I EPA 608 <0.00001 mg/L 03/09/2016 Endosulfan II EPA 608 <0.00001 mg/L 03/09/2016 Endosulfan sulfate EPA 608 <0.00001 mg/L 03/09/2016 Endrin EPA 608 <0.0001 mg/L 03/09/2016 Endrin aldehyde EPA 606 <0.00001 mg/L 03/0912016 Gamma -BHC EPA600 <0.00001 mg/L 03/09/2016 Heptachlor EPA 696 <0.00004 mg/L 03/09/2016 Heptachlor epoxide EPA 606 <0.00002 mg/L 03/09/2016 Hexachlorocyclopentadiene EPA 808 <0.0001 mg/L 03/09/2016 Methoxychlor EPA 606 <0.0002 mg/L 03/09/2016 Metolachlor EPA 608 <0.0008 mg/L 03/09/2016 Metribuzin EPA608 <0.0008 mg/L 03/09/2016 Propachlor EPA 608 <0.006 mg/L 03/09/2016 Simazine EPA 606 <0.00007 mg/L 03/09/2016 Toxaphene EPA 608 <0.001 mg/L 03/09/2016 1,1,1 -Trichloroethane EPA 624 <0.5ug/L 03/10/2016 1,1,2,2 -Tetrachloroethane EPA 624 <0.5pg/L 03/1012016 1,12 -Trichloroethane EPA 624 <0.5pg/L 03/10/2016 1,1-Dichloroethane EPA 824 <0.5pg/L 0 3/1 012 01 6 1,1-Dichloroethene EPA 624 <0.5pg/L 03/10/2016 1,2 -Dichlorobenzene EPA 624 <0.5 pg/L 03/10/2016 1,2-Dichloroethane EPA 624 <0.5u9/L 03/10/2016 1,2-Dichloropropane EPA 624 <0.5 u9/L 03/10/2016 1,3 -Dichlorobenzene EPA 624 <0.5pg/L 03/10/2016 Report #:: 2016-02968 Page 2 0112 Environmental Chemists, Inc. ,L enviroch7em� 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax © 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax s 255-A Wilmington Highway, Jacksonville, NC 28540 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@cnvironmentalchemisiscom Elementis Chromium 5408 Holly Shelter Road Castle Hayne NC Attention: Walt Greer 28429 Date of Report: Mar 22, 2016 Customer PO #: Customer ID: 08110009 Report #: 2016-02966 Project ID: 1,4 -Dichlorobenzene EPA624 <0.5 pg/L 03/10/2016 Acrolein EPA624 <5 pg/L 03/10/2016 Acrylonitrile EPA624 <5 pg/L 03/10/2016 Benzene EPA624 <0,5pg/L 03/10/2016 Bromodichloromethane EPA624 <0.5pg/L 03/10/2016 Bromoform EPA624 <0.5pg/L 03/10/2016 Bromomethane EPA624 <0.5pg/L 03110/2016 Carbon Tetrachloride EPA624 <0.5 pg/L 03/10/2016 Chlorobenzene EPA624 <0.5pg/L 03/10/2016 Chloroethane EPA624 <0.5pg/L 0 311 0/201 6 Chloroform EPA624 <0.5pg/L 03/10/2016 Chloromethane EPA624 <0.5pg/L 03110/2016 cis-1,3-Dichloropropene EPA624 <0.5pg/L 03/10/2016 Dibromochloromethane EPA624 <0.5pg/L 03/10/2016 Ethylbenzene EPA 824 <0.5pg/L 03/10/2016 M+P Xylene EPA 624 <1.0 pg/L 03110/2016 Methylene chloride EPA624 <0.5 pg/L 03/10/2016 ortho-Xylene EPA624 <0.5pg/L 03/10/2016 Tetrachloroethene EPA624 <0.5pg/L 03/10/2016 Toluene EPA624 <0.5pg/L 03/10/2016 Trans-1,2-Dichloroethene EPA624 <0.5pg/L 03/10/2016 trans-1,3-Dichloropropene EPA 824 <0.5pg/L 03/10/2016 Trichloroethene EPA624 <0.5pg/L 03/10/2016 Trichlorofluoromethane EPA624 <0.5pg/L 03/10/2016 Vinyl chloride EPA 824 <0.5 pg/L 03/10/2016 2,4,6 -Trichlorophenol EPA 625 <5.05 pg/L 03/04/2016 2,4-Dichlorophenol EPA625 <5.05pg/L 03/04/2016 2,4 -Dimethylphenol EPA 625 <5.05pg/L 03/04/2016 2,4-Dinitrophenol EPA 625 <25.3 pg/L 03104/2016 2 -Chlorophenol EPA 625 <5.05pg/L 03/04/2016 Report #:: 26164)2966 Page 3 of 12 envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax inrb environmentalchemistscom Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 4-Chloro-3-methylphenol Project ID: 2-Methyl-4,6-dinitrophenol EPA625 <25.3pg/L 03/04/2016 2-Nitrophenol EPA625 <25.3pg/L 03/04/2016 4-Chloro-3-methylphenol EPA625 <5.05pg/L 03/04/2016 4-Nitrophenol EPA625 <25.3pg1L 03/0412016 Pentachlorophenol EPA625 <25.3pg/L 03/04/2016 Phenol EPA625 <5.05pg/L 03/04/2016 1,2 Diphenylhydrazine EPA625 <5.05pg/L 03/04/2016 1,2,4-Tdchlorobenzene EPA625 <5.05pg/L 03/04/2016 1,2 -Dichlorobenzene EPA625 <5.05pg/L 03/04/2016 1,3 -Dichlorobenzene EPA625 <5.05pg/L 03/04/2016 1,4 -Dichlorobenzene EPA625 <5.05pg/L 03/04/2016 1 -Methylnaphthalene EPA625 <5.05pg/L 03/04/2016 2,4-Dinitrotoluene EPA625 <5.05pgIL 03/04/2016 2,6-Dinitrotoluene EPA625 <5.05pg/L 03/04/2016 2-Chloronaphthalene EPA625 <5.05 pg/L 03/04/2016 2 -Methylnaphthalene EPA625 <5.05pg/L 03/04/2016 3,3'-Dichlorobenzidine EPA625 <10.1 pg/L 03/04/2016 4-Bromophenyl phenyl ether EPA 625 <5.05 pg/L 03/04/2016 4-Chlorophenyl phenyl ether EPA625 <5.05 pg/L 03/04/2016 Acenaphthene EPA625 <5.05pg/L 03/04/2016 Acenaphthylene EPA 825 <5.05pg/L 03/04/2016 Anthracene EPA625 <5.05pg/L 03/04/2016 Benzidine EPA625 <10.1 pg/L 03/04/2016 Benzo [a]pyrene EPA625 <5.05 pg/L 03/04/2016 Benzo(a)anthracene EPA625 <5.05pg/L 03/04/2016 Benzo(b)fluoranthene EPA 626 <5.05pg/L 03/04/2016 Benzo(g,h,i)perylene EPA625 <5.05pg/L 03/04/2016 Senzo(k)fluoranthene EPA625 <5.05pg1L 03/04/2016 Bis ( chloromethyl ) ether EPA 825 <5.05 pg/L 03104/2016 Bis(2-Chloroethoxy)methane EPA625 <5.05pg/L 03/04/2016 Report i':: 2016-02966 Page 4 of 12 Environmental Chemists, Inc. envirochem6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info®environmenlalchemist&com Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO M Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 Project ID: Bis(2-Chloroethyl)ether EPA625 <5.05 pg/L 03/04/2016 Bis(2-Chloroisopropyl)ether EPA625 <5.05 pg/L 03/04/2016 Bis(2-ethylhexyl)phthalate EPA625 <5.05pg/L 03/04/2016 Butylbenzylphthalate EPA625 <5.05pg/L 03/04/2016 Chrysene EPA625 <5.05pg/L 03/04/2016 Dibenzo(a,h)anthracene EPA625 <5.05pg/L 03/04/2016 Diethylphthalate EPA625 <5.05pg/L 03/04/2016 Dimethylphthalate EPA625 <5.05pg/L 03/04/2016 Di-n-Butylphthalate EPA625 <5.05pg/L 03/04/2016 Di-n-Octylphthalate EPA625 <5.05pg/L 03/04/2016 Fluoranthene EPA625 <5.05pg/L 03/0412016 Fluorene EPA625 <5.05 pg/L 03/04/2016 Hexachlorobenzene EPA625 <5.05pg/L 03/04/2016 Hexachlorobutadiene EPA625 <5.05 pg/L 03/04/2016 Hexachlorocyclopentadiene EPA 825 <25.3pg/L 03/04/2016 Hexachloroethane EPA625 <5.05pg/L 03/04/2016 Indeno(1,2,3-cd)pyrene EPA625 <5.05pg/L 03/0412016 Isophorone EPA625 <5.05pg/L 03/04/2016 Naphthalene EPA625 <5.05pg/L 03/04/2016 Nitrobenzene EPA625 <5.05 pg/L 03/04/2016 N-nitroso-dimethylamine(NDMA) EPA625 <5.05pg/L 03/04/2016 N-Nitroso-di-n-propylamine EPA625 <5.05 pg/L 03/04/2016 N-Nitroso-diphenylamine EPA625 <5.05pg/L 03/0412016 Phenanthrene EPA625 <5.05 pg/L 03/04/2016 Pyrene FPA 625 <5.05 pg1L 03/04/2016 Residue Suspended (TSS) SM 2540 0 <2.8 mg/L 03/08/2016 Chloride SM 4500 CI E 95 mg/L 03/14/2016 Total Phosphorus SM 4500 PF < 0.04 mg/L 03/14/2016 BOD SM 5210 a <2 mg/L 03/09/2016 Total Nitrogen (Calc) Report •:: 2016-02966 Page 5 of 12 Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab e 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax sM 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@envimnmentalchemists.com Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 Project ID: Total Kjeldahl Nitrogen (TKN) EPA 351.2 < 0.5 mg/L 03/12/2016 Nitrate+Nitrite-N i troge n Total Nitrogen EPA 353.2 TOUT Nitrogen < 0.02 mg/L <0.5 mg/L 03/09/2016 03/17/2016 Report#:: 2016-02966 Page 6 W 12 Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax O 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax sM 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environnfentalchemists.com Elementis Chromium 5408 Holly Shelter Road Castle Hayne NC 28429 Attention: Walt Greer Date of Report: Mar 22, 2016 Customer PO #: Customer ID: 08110009 Report M 2016-02956 Project ID: Lab ID Sample ID: Collect DatelTime Matrix Sampled by 16-06974 Site: # 2 Quarry 3/7/2016 1:00 PM Water Dean Riggs Test Method Results Date Analyzed Antimony EPA 2007 <0.01 mg/L 03/11/2016 Arsenic EPA 2007 <0.01 mg/L 03/11/2016 Beryllium EPA 2007 <0.01 mg/L 03/11/2016 Cadmium EPA 200.7 <0.01 mg/L 03/11/2016 Chromium EPA 200.7 0.026 mg/L 03/11/2016 Copper EPA 200.7 <0.01 mg/L 03/11/2016 Lead EPA 200.7 <0.01 mg/L 03/11/2016 Nickel EPA 200.7 <0.01 mg/L 03/11/2016 Selenium EPA 200.7 <0.01 mg/L 03/11/2016 Silver EPA 200.7 <0.01 mg/L 03/11/2016 Thallium EPA 200.7 <0.01 mg/L 03/11/2016 Zinc EPA 200.7 <0.01 mg/L 03/11/2016 Mercury EPA 246.1 <0.0002mg/L 03/07/2016 Cyanide EPA 335A < 0.005 mg/L 03/17/2016 Alachlor EPA 608 <0.0002mg/L 03/09/2016 Aldrin EPA 508 <0.0002mg/L 03/09/2016 Alpha - BHC EPA 608 <0.00001 mg/L 03/09/2016 Aroclor -1016 EPA 606 <0.0005 mg/L 03/09/2016 Aroclor - 1221 EPA 608 <0.0005 mg/L 03/09/2016 Aroclor- 1232 EPA608 <0.0005 mg/L 03/09/2016 Aroclor - 1242 EPA 666 <0.0005 mg/L 03/09/2016 Aroclor -1248 EPA 608 <0.0005 mg/L 03/0912016 Aroclor-1254 EPA 608 <0.0005 mg/L 03/09/2016 Aroclor -1260 EPA 608 <0.0005 mg/L 03/09/2016 Beta -BHC EPA 608 <0.00001 mg/L 03/09/2016 Butachlor EPA 608 <0.008mg/L 03/09/2016 Report iY.: 2016-02966 Page 7 of 12 Environmental Chemists, Inc. enviroch�em 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax ® 710 Rowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@envimnmentalchemists.com Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 DDE Project ID: Chlordane EPA 608 <0.001 mg/L 03/09/2016 DDD EPA608 <0.00001 mg/L 03/09/2016 DDE EPA608 <0.00001 mg/L 03/09/2016 DDT EPA 808 <0.00001 mg/L 03/09/2016 Delta -BHC EPA808 <0.00001 mg/L 03/09/2016 Dieldrin EPA 808 <0.0002 mg/L 03/09/2016 Endosulfan I EPA608 <0.00001 mg/L 03/09/2016 Endosulfan II EPA 608 <0.00001 mg/L 03/09/2015 Endosulfan sulfate EPA808 <0.00001 mg/L 03/09/2016 Endrin EPA 608 <0.0001 mg/L 03/09/2016 Endrin aldehyde EPA 608 <0.00001 mg/L 03/09/2016 Gamma -BHC EPA608 <0.00001 mg/L 03/09/2016 Heptachlor EPA 808 <0.00004 mg/L 03/09/2016 Heptachlorepoxide EPA 608 <0.00002 mg/L 03/09/2016 Hexachlorocyclopentadiene EPA 608 <0.0001 mg/L 03/09/2016 Methoxychlor EPA608 <0.0002 mg/L 03/09/2016 Metolachlor EPA 608 <0.0008mg/L 03/09/2016 Metribuzin EPA60B <0.0008 mg/L 03/09/2016 Propachlor EPA 608 <0.006 mg/L 03/09/2016 Simazine EPA 608 <0.00007 mg/L 03/09/2016 Toxaphene EPA608 <0.001 mg/L 03/09/2016 1,1,1 -Trichloroethane EPA 624 <0.5pg/L 03/10/2016 1,1,2,2 -Tetrachloroethane EPA 624 <0.5pg/L 03/10/2016 1,1,2 -Trichloroethane EPA 624 <0.5pg/L 03/10/2016 1,1-Dichloroethane EPA 624 <0.5u9/L 03/10/2016 1,1-Dichloroethene EPA 624 <0.5 pg/L 03/10/2016 1,2 -Dichlorobenzene EPA624 <0.5pg/L 03/10/2016 1,2-Dichloroethane EPA 624 <0.5pg/L 03/10/2016 1,2-Dichloropropane EPA 824 <0.5pg/L 03/10/2016 1,3 -Dichlorobenzene EPA 624 <0.5pg/L 03/10/2016 Report i:: 2016-02866 Page 8 of 12 envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910347_5843 Lab/Fax info@environmen talchem istacom Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report#: 2016-02966 Project ID: 1,4 -Dichlorobenzene EPA624 <0.5pg/L 03/10/2016 Acrolein EPA 624 <5 pg/L 0 311 0/2 01 6 Acrylonitrile EPA624 <5pg/L 03/10/2016 Benzene EPA 524 <0.5pg/L 03/10/2016 Bromodichloromethane EPA624 <0.5pg/L 03/10/2016 Bromoform EPA624 <0.5pg/L 03/10/2016 Bromomethane EPA624 <0.5pg/L 03/10/2016 Carbon Tetrachloride EPA 624 <0.5 pg/L 03/10/2016 Chlorobenzene EPA624 <0.5pg/L 03/10/2016 Chloroethane EPA624 <0.5pg/L 03110/2016 Chloroform EPA624 <0.5pg/L 03/10/2016 Chloromethane EPA624 <0.5pg/L 03/10/2016 cis-1,3-Dichloropropene EPA624 <0.5pg/L 03/1012016 Dibromochloromethane EPA624 <0.5pg/L 03/10/2016 Ethylbenzene EPA624 <0.5 pg/L 03/10/2016 M+P Xylene EPA 624 <1.0 pg/L 03/10/2016 Methylene chloride EPA 624 <0.5 pg/L 0 311 0/2 01 6 ortho-Xylene EPA624 <0.5pg/L 03/10/2016 Tetrachloroethene EPA624 <0.5pg/L 03/10/2016 Toluene EPA624 <0.5pg/L 03/10/2016 Trans-1,2-Dichloroethene EPA624 <0.5pg/L 03/10/2016 trans-1,3-Dichloropropene EPA624 <0.5pg/L 03/10/2016 Trichloroethene EPA624 <0.5pg/L 03/10/2016 Trichlorofluoromethane EPA624 <0.5pg/L 03/10/2016 Vinyl chloride EPA624 <0.5 pg/L 03/10/2016 2,4,6 -Trichlorophenol EPA 625 <5.05pg/L 03/04/2016 2,4-Dichlorophenol EPA $25 <5.05pg/L 03/04/2016 2,4 -Dimethylphenol EPA 625 <5.05 pg/L 03/04/2016 2,4-Dinitrophenol EPA625 <25.3pg/L 03104/2016 2 -Chlorophenol EPA 625 <5.05pg/L 03/0412016 Report%'.: 2016-02968 Page 9 of 12 Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax © 710 Bowsertown Road, Mameo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchcmists.com Elementis Chromium 5408 Holly Shelter Road Castle Hayne NC 28429 Attention: Waft Greer Date of Report: Mar 22, 2016 Customer PO #: Customer ID: 08110009 Report #: 2016-02966 Project ID: 2-Methyl-4,6-dinitrophenol EPA625 <25.3ug/L 03/04/2016 2-Nitrophenol EPA625 <25.3ug/L 03/04/2016 4-Chloro-3-methylphenol EPA625 <5.05ug/L 03/04/2015 4-Nitrophenol EPA 626 <25.3ug/L 03/04t2016 Pentachlorophenol EPA625 <25.3pg/L 03/04/2016 Phenol EPA 625 <5.05 pg/L 03/04/2016 1,2 Diphenylhydrazine EPA625 <5.05 ug/L 03/04/2016 1,2,4-Tdchlorobenzene EPA625 <5.05pg/L 03/0412016 1,2 -Dichlorobenzene EPA625 <5.05ug/L 03/04/2016 1,3 -Dichlorobenzene EPA 626 <5.05pg/L 03/04/2016 1,4 -Dichlorobenzene EPA625 <5.05ug/L 03/04/2016 1-Methy1naphthalene EPA625 <5.05pg/L 03/04/2016 2,4-Dinitrotoluene EPA625 <5.05pg/L 03/0412016 2,6-Dinitrotoluene EPA625 <5.05pg/L 03/04/2016 2-Chloronaphthalene EPA625 <5.05pg/L 03/04/2016 2 -Methylnaphthalene EPA626 <5.05ug/L 03/04/2016 3,3'-Dichlorobenzidine EPA625 <10.1lig/L 03/04/2016 4-Bromophenyl phenyl ether EPA 625 <5.05 pg/L 0310412016 4-Chlorophenyl phenyl ether EPA625 <5.05 pg/L 03/04/2016 Acenaphthene EPA625 <5.05pg/L 03/04/2016 Acenaphthylene EPA625 <5.05u9/L 03/04/2016 Anthracene EPA625 <5.05ug/L 03/04/2016 Benzidine EPA625 <10.1 pg/L 03/04/2016 Benzo [a)pyrene EPA625 <5.05 pg/L 03/04/2016 Benzo(a)anthracene EPA625 <5.05pg/L 03/04/2016 Benzo(b)Fluoranthene EPA 625 <5.05 ug/L 03/0412016 Benzo(g,h,i)perylene EPA625 <5.05pg/L 03/04/2016 Benzo(k)fluoranthene EPA625 <5.05 pg/L 03/04/2016 Bis ( chloromethyl ) ether EPA625 <5.05 u9/L 03/04/2016 Bis(2-Chlorcethoxy)methane EPA625 <5.05ug/L 03/04/2016 ReportJY: 2018-02966 Page 10 of 12 Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax ® 710 Bowsertown Road, Mantec, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchemists.com Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO #: Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 Project ID: Bis(2-Chloroethyl)ether EPA625 <5.05pg/L 03/04/2016 Bis(2-Chloroisopropyl)ether EPA625 <5.05pg/L 03/04/2016 Bis(2-ethylhexyl)phthalate EPA625 <5.05pg/L 03/04/2016 Butylbenzylphthalate EPA625 <5.05pg/L 03/04/2016 Chrysene EPA625 <5.05pg/L 03/04/2016 Dibenzo(a,h)anthracene EPA625 <5.05pg/L 03/04/2016 Diethylphthalate EPA625 <5.05pg/L 03/04/2016 Dimethylphthalate EPA625 <5.05pg/L 03/04/2016 Di-n-Butylphthalate EPA625 <5.05pg/L 03/04/2016 Di-n-Octylphthalate EPA625 <5.05pg/L 03/04/2016 Fluoranthene EPA625 <5.05 pg/L 03/04/2016 Fluorene EPA625 <5.05pg/L 03/04/2016 Hexachlorobenzene EPA625 <5.05pg/L 03/04/2016 Hexachlorobutadiene EPA625 <5.05pg/L 03/0412016 Hexachlorocyclopentadiene EPA 825 <25.3pg/L 03/04/2016 Hexachloroethane EPA625 <5.05pg/L 03/04/2016 Indeno(1,2,3-cd)pyrene EPA625 <5.05pg/L 03/04/2016 Isophorone EPA625 <5.05pg/L 03/04/2016 Naphthalene EPA 625 <5.05 pg/L 03/04/2016 Nitrobenzene EPA625 <5.05 pg/L 03/04/2016 N-nitroso-dimethylamine(NDMA) EPA 525 <5.05pg/L 03/04/2016 N-Nitroso-di-n-propylamine EPA625 <5.05pg/L 03/04/2016 N-Nitroso-diphenylamine EPA625 <5.05pg/L 03/04/2016 Phenanthrene EPA625 <5.05pg/L 03/04/2016 Pyrene EPA 626 <5.05pg/L 03/04/2016 Residue Suspended (TSS) SM 2540 D <2.B mg/L 03/08/2016 Chloride SM 4500 CIE 181 mg/L 03/14/2016 Total Phosphorus SM M500 P F < 0.04 mg/L 03/14/2016 BOD SM 521 D B <2 mg/L 03/09/2016 Total Nitrogen (Calc) Report A`: 2016-02966 Page 11 of 12 Report #:: 201&02968 Page 12 of 12 Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.3702 Lab/Fax ® 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchemismcom Elementis Chromium Date of Report: Mar 22, 2016 5408 Holly Shelter Road Customer PO M Castle Hayne NC 28429 Customer ID: 08110009 Attention: Walt Greer Report #: 2016-02966 Project ID: Total Kjeldahl Nitrogen (TKN) EPA 351.2 < 0.5 mg/L 03/12/2016 Nitrate+Nitrite-Nitrogen EPA 3532 <0.02mg/L 03/09/2016 Total Nitrogen Total Nitrogen <0.5 mg/L 03/17/2016 Comment: Reviewed by: Report #:: 201&02968 Page 12 of 12 N O (n 0 m 3 o � O O m -40 C C 0 m u a N P 42 O p y O 3 a w D 3 0 n xc> O W n m0 c 0 _ 0=Y n e r, v W Y no, m Sample Type Y Composite "^ G) 0 C) 0 G) n Gi C) G) 0 or S Grab R Container o P or G) O n to — Chlorine m9IL 3 0 N p LAB ID w NUMBER m J( NONE n HCL � m H2SO4 N � a Y HNO3 m X 0 C o NADH 1 < m N O TRIO Z W � y OTHER m n o 0 0 0) CL g D 00 03 z _ Cl0 a-ClN 1 U) N O D (� ;ll D z c i N 3 m 0 N [ID a N 0 r M z 1 M r M 3 m z —I W C) 2 A O _3 c 3 o m z O O M y oa Workspace Webmail :: Print Print I Close Window Subject: Response from USGS concerning... Re: Flow Estimates - North Cape Fear River From: "Weaver, John" <jcweaver@usgs.gov> Date: Thu, Feb 25, 2016 12:28 pm To: Sean Coury <sea n.cou ry@couryse.com> Cc: John Weaver <jcweaver@usgs.gov> Attach: A50AF443-FF8C-489D-B224-9E9B15675958[69].png E7D3453C-892F-4BE0-87D1-CEF6B850D88D[69].png Mr. Coury, Page 1 of 2 In response to your inquiry about the low -flow characteristics for the Northeast Cape Fear River near Castle Hayne (in vicinity of Wilmington) along the border between New Hanover and Pender Counties, the following information is provided: A check of the low -flow files here at the USGS South Atlantic Water Science Center (SAWSC Raleigh office) indicates previous estimates at several nearby locations on the Northeast Cape Fear River very near the point of interest, based on the lat/long coordinates (34 22 34 N // 77 51 55 W) provided in your email dated February 18, 2016. However, a note was also written on these estimates saying "tidal effects may exist." No USGS discharge records are known to exist for the point of interest. A basin delineation completed using the USGS StreamStats application for North Carolina (htto://water.usgs.gov/osw/streamstats/north carolina.htmll resulted in a drainage area at 1,490 sqmi. In the absence of site-specific discharge records sufficient for a low -flow analysis, estimates of low -flow characteristics at ungaged locations are determined by assessing a range in the low -flow yields (expressed as flow per square mile drainage area, of cfsm) at one or more nearby site(s) where such estimates have previously been determined. Visual inspection of the topographical map suggests the stream location at the point of interest on the Northeast Cape Fear River is affected by tides, further evidenced by the stage records collected at the active USGS streamgage located upstream on the Northeast Cape Fear River near Burgaw in Pender County (station id 02108566, drainage area 920 sqmi). Remarks included with the 2015 water -year summary for the stage records at this streamgage indicate the site being affected by astronomical and wind tides, with the astronomical tides occurring at primary harmonic periods of 12.42 hours and 24.84 hours: Please note the USGS SAWSC Raleigh office currently refrains from providing (or updating previously determined) low -flow estimates for streams known or suspected of being tidally affected. There are currently no techniques that allow for quantifying the effects of tides on low flows. Concerns that tides may possibly reduce low -flow discharges (that is, relative to low -flow estimates for the same stream not tidally -affected) lead us to speculate that any such estimates for these streams may be too high. You will need to contact the Water Quality Permitting Section within the N.C. Division of Water Resources to obtain further guidance concerning your efforts to obtain an NPDES permit for a location in a tidally -affected stream. Hope this information is helpful in some manner. Thank you. Curtis Weaver J. Curtis Weaver, Hydrologist, PE Email: jcweaver@uses.aov USGS South Atlantic Water Science Center Online: htta://nc. water. users. oov/ North Carolina - South Carolina - Georgia 3916 Sunset Ridge Road https://email0l.godaddy.comlview_lrint_multi.php?uidArray=150721INBOX&aEmlPart=O 5/12/2016 Workspace Webmail :: Print Page 2 of 2 Raleigh, NC 27607 Phone: (919) 571-4043 // Fax: (919) 571-4041 On Thu, Feb 18, 2016 at 10:06 AM, Sean Coury <sean.coury(a)courvse.com> wrote: Charles, I am working on an NPDES modification and am looking to obtain flow information for the North East Cape Fear '. River. The Lattitude is 34 deg 22'34" and the longitude is 77 deg 51'55". The USGS quad is Mooretown, NC. I am specifically looking for the following information: 7Q10 summer 7Q10 winter 30Q2 flow QA — average flow Please let me know if you have any questions. Thanks! Sean Coury, PE sean.cou rylcDcourYse.com 910-319-0017 - office 910-685-3662 - cell An Economically Disadvantaged Women -Owned Small Business Copyright ® 2003-2016. All rights reserved. https:HemailOI.godaddy.com/view_print_multi.php?uidArray=15072lfNBOX&aEmiPart=O 5/12/2016 F eo r a n n.m m m N !n N W Q r J b U 0 o d N u m < a m a May 16, 2016 Certified Mail 917108 2133 3939 7140 0027 qei v Hanover County Planning and Zoning !3C Government Center Dr, Suite 110 Wil 'ngton, NC 28403 m E NPDES PERMIT MODIFICATION- LOCAL GOVERNMENT REVIEw FORM NC0003875- ELEMENTIS CHROMIUM, INC CASTLE HAYNE PLANT m n CHROMIUM d Qj 0 w Im, sed please find a copy of the completed NPDES Permit Application for modification of the Elementis aa`4, mium NPDES permit, Permit Number NC0003875 located at 5408 Holly Shelter Rd. Elementis is proposing to R It ase its capacity to discharge wastewater into the Northeast Cape Fear River. The purpose of the wastewater d c oiscliarge expansion is NOT related to increase production capacity at the facility; rather, the project is being c o 0 8mp ented to control freeboard from the onsite surface disposal units. As the surface disposal units approach $ap ity, it is becoming more challenging to control freeboard, especially during extreme wet periods. OU Q= Q :mentis facility is classified within the Intensive Manufacturing category listed in the New Hanover County Ordinance. According to Section 44-1.1.1 of the New Hanover County Ordiance: 44-1.1.1: Modifications and/or Expansions of Existing Industrial Uses: For modifications and/or expansions of existing industrial uses whose site conditions were in conformity with the requirements of this ordinance as of the day prior to the date of adoption, the following conditions must be met. If these conditions are not met; or if the existing industrial use is classified within the Intensive Manufacturing category, and the modification and/or expansion change the particular use within that category, a special use permit will be required for the modification and/or expansion. A. Modifications and/or Expansions on the Same Parcel. Modifications and/or expansions of existing industrial uses shall be allowed if fully contained on the tax parcel currently developed for and operating as such use and provided the following: 1. If the expansion and/or modification is for the some existing industrial use that was in active operation and open for business as of the day prior to the date of adoption of this section. The proposed increase in wastewater discharge volume will not change the particular use within the existing manufacturing category and the project is fully contained on the current tax parcel. Therefore, a special use permit is not required. Please complete the attached form and return it to the following address: Elementis Chromium Attn: Sean Coury 5408 Holly Shelter Rd Castle Hayne, NC 28429 Elementis Chromium LP 5408 Holly Shelter Road Castle Hayne, NC 28429 Telephone: (910) 675-7200 Facsimile: (910) 675-7201 CHROMIUM Thank you for your efforts with this renewal. If you have any questions or concerns, please do not hesitate to contact me at (910) 685-3662. Sincerely, Sean Coury Enclosures — Local Government Review Form Elementis Chromium IP 5408 Holly Shelter Road Castle Hayne, NC 28429 Telephone: (910) 675-7200 Facsimile: (910) 675-7201 USDA United States Department of Agriculture N RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for New Hanover County, North Carolina Elementis Property Soil Information May 10, 2016 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http //www.nres.usda.gov/wps/portal/ nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (http:// offices. sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=n res 142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 SoilMap..................................................................................................................7 SoilMap................................................................................................................8 Legend..................................................................................................................9 MapUnit Legend................................................................................................10 MapUnit Descriptions........................................................................................10 New Hanover County, North Carolina.............................................................12 Ba--Bayboro loam......................................................................................12 Be—Baymeade fine sand, 1 to 6 percent slopes........................................13 JO—Johnston soils.....................................................................................14 Kr—Kureb sand, 1 to 8 percent slopes.......................................................15 Le—Leon sand............................................................................................16 Ls—Lynchburg fine sandy loam, 0 to 2 percent slopes, Atlantic Coast Flatwoods..............................................................................................17 Ly—Lynn Haven fine sand..........................................................................19 Mu—Murville fine sand................................................................................20 Rm—Rimini sand, 1 to 6 percent slopes.....................................................21 St—Stallings fine sand................................................................................22 To—Torhunta loamy fine sand....................................................................24 W—Water....................................................................................................25 Wo—Woodington fine sandy loam..............................................................26 References............................................................................................................28 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes, the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the Custom Soil Resource Report individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components, the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil - landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to ft local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. Mu Be Ly w �y Mu lye T Kr o Ly Le Be Kr -Be Le t Kr JO �Le Kr Mu Le St Mu st o Mu Wo Is Ls st A Le Cf) / 2 16- $§ !|)� - - ) / ' : ■! 2� 22| ; § ƒ ■ f)j& § \ k� k\ ( { /f/! LL ®0f ! ! Z.2 LO §� ; ; § 8Q. ) * )§`�8 k_ } \�!7 (L ,§�!j , �k 2/§-,5 § / : /\/\ /k+) �\ !f {� §| �)�) {) £! !T J !! )«a 2t;a< »! 32 a| -M 3§f\ 6 \ \ \■ Lawe»«f!!! S ) { E w |(|!0 » :!§)] i! +K■,�* 7/|gI.i,e■ex•■¥4¥00 Custom Soil Resource Report Map Unit Legend New Hanover County, North Carolina (NC129) Map Unit Symbol Map Unit Name Acres In AOI Percent of AOI Be Be Bayboro loam Baymeade fine sand, 1 to 6 percent slopes Johnston soils 2.1 0.5% 0.4 0.1% JO 60.0 14.8% Kr Le Kureb sand, 1 to 8 percent slopes 40.0 9.8% 30.1% Leon sand 122.2 Ls Lynchburg fine sandy loam, 0 to 2 percent slopes, Atlantic Coast Flatwoods 22 0.5% Ly Lynn Haven fine sand 4.4 1.1% Mu Murville fine sand 116.3 28.6% Rm Rimini sand, 1 to 6 percent slopes 6.1 1.5% St Stallings One sand 43.6 4.4 2.7 1.8 10.7% To Torhunta loamy fine sand 1.1% W I Water 0.7% Wo Woodington fine sandy loam Totals for Area of Interest 0.4% 4082 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties 10 Custom Soil Resource Report and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha - Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 11 Custom Soil Resource Report New Hanover County, North Carolina Ba—Bayboro loam Map Unit Setting National map unit symbol: 3wgz Elevation: 20 to 160 feet Mean annual precipitation. 40 to 55 inches Mean annual airtemperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Farmland of statewide importance Map Unit Composition Bayboro, ponded, and similar soils: 80 percent Bayboro, drained, and similar soils: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Bayboro, Ponded Setting Landform: Flats, depressions Down-slope shape: Linear Across -slope shape: Linear Parent material., Clayey and loamy marine deposits Typical profile A - 0 to 13 inches: loam Eg - 13 to 17 inches: loam Btg - 17 to 80 inches: clay Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 0 inches Frequency of flooding: None Frequency of ponding. Frequent Available water storage in profile: High (about 10.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: C/D Description of Bayboro, Drained Setting Landform: Depressions, flats Down-slope shape: Linear Across -slope shape: Linear Parent material: Clayey and loamy marine deposits 12 Custom Soil Resource Report Typical profile A - 0 to 13 inches: loam Eg - 13 to 17 inches: loam Btg - 17 to 80 inches: clay Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to watertable: About 0 inches Frequency of flooding: None Frequency of ponding: None Available waterstorage in profile: High (about 10.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: C/D Be—Baymeade fine sand, 1 to 6 percent slopes Map Unit Setting National map unit symbol: 3wr0 Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Farmland of statewide importance Map Unit Composition Baymeade and similar soils: 90 percent Minor components: 8 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Baymeade Setting Landform: Ridges on marine terraces Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Crest Down-slope shape: Convex Across -slope shape: Convex Parent material: Loamy and sandy marine deposits Typical profile A - 0 to 2 inches: fine sand E/Bh - 2 to 30 inches: fine sand 13 Custom Soil Resource Report Bt - 30 to 40 inches: fine sandy loam C - 40 to 80 inches: loamy fine sand Properties and qualities Slope: 0 to 6 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 48 to 60 inches Frequency of flooding.' None Frequency of ponding: None Available water storage in profile: Low (about 3.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s Hydrologic Soil Group: A Minor Components Leon Percent of map unit: 2 percent Landform: Flats on marine terraces Down-slope shape. Linear Across -slope shape: Concave Lynn haven, undrained Percent of map unit. 2 percent Landform: Flats on marine terraces Down-slope shape: Linear Across -slope shape: Linear Murville, undrained Percent of map unit: 2 percent Landform. Depressions on marine terraces, flats on marine terraces Down-slope shape: Concave Across -slope shape: Concave Torhunta, undrained Percent of map unit: 2 percent Landform: Flats on marine terraces, carolina bays on marine terraces, depressions on stream terraces Down-slope shape: Linear Across -slope shape: Linear JO—Johnston soils Map Unit Setting National map unit symbol. 3wr5 Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches 14 Custom Soil Resource Report Mean annual air temperature: 59 to 70 degrees F Frost -free period., 200 to 280 days Farmland classification: Not prime farmland Map Unit Composition Johnston, undrained, and similar soils: 90 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Johnston, Undrained Setting Landform: Flood plains Down-slope shape: Concave Across -slope shape: Linear Parent material., Sandy and loamy alluvium Typical profile A - 0 to 30 inches: mucky loam Cgf - 30 to 34 inches: loamy fine sand Cg2 - 34 to 80 inches: fine sandy loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 0 inches Frequency of flooding: Frequent Frequency of ponding: Frequent Available water storage in profile: High (about 9.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7w Hydrologic Soil Group: A/D Kr—Kureb sand, 1 to 8 percent slopes Map Unit Setting National map unit symbol: 3wr7 Elevation: 0 to 20 feet Mean annual precipitation: 42 to 58 inches Mean annual air temperature: 61 to 64 degrees F Frost -free period: 190 to 270 days Farmland classification: Not prime farmland Map Unit Composition Kureb and similar soils: 85 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. 15 Custom Soil Resource Report Description of Kureb Setting Landform: Rims on carolina bays, ridges on marine terraces Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Crest Down-slope shape: Convex Across -slope shape: Convex Parent material., Eolian sands and/or sandy fluviomarine deposits Typical profile A - 0 to 3 inches: sand E - 3 to 26 inches: sand C/t3h - 26 to 89 inches: sand Properties and qualities Slope: 0 to 6 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding. None Available water storage in profile: Very low (about 1.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7s Hydrologic Soil Group: A Minor Components Leon Percent of map unit: 5 percent Landform: Flats on marine terraces Down-slope shape: Linear Across -slope shape: Concave Le—Leon sand Map Unit Setting National map unit symbol., 3wrb Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period., 200 to 280 days Farmland classification: Farmland of unique importance M Custom Soil Resource Report Map Unit Composition Leon and similar soils: 80 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Leon Setting Landform: Flats on marine terraces Down-slope shape: Linear Across -slope shape: Concave Parent material: Sandy fluviomarine deposits and/or eolian sands Typical profile A - 0 to 3 inches: sand E - 3 to 15 inches: sand Bh - 15 to 30 inches: fine sand BE - 30 to 33 inches: fine sand E'- 33 to 66 inches: fine sand B'h - 66 to 80 inches: fine sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 1.98 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 3.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: A/D Ls—Lynchburg fine sandy loam, 0 to 2 percent slopes, Atlantic Coast Flatwoods Map Unit Setting National map unit symbol: 2vx8k Elevation: 0 to 100 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 64 to 70 degrees F Frost -free period. 200 to 310 days Farmland classification: Prime farmland if drained Map Unit Composition Lynchburg and similar soils: 82 percent Minor components: 18 percent 17 Custom Soil Resource Report Estimates are based on observations, descriptions, and transects of the mapunit. Description of Lynchburg Setting Landform: Marine terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across -slope shape: Linear Parent material. Loamy marine deposits Typical profile Ap - 0 to 6 inches: fine sandy loam E - 6 to 13 inches: fine sandy loam Bt - 13 to 21 inches: sandy clay loam Big - 21 to 45 inches: sandy clay loam BCg - 45 to 63 inches: sandy clay loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature. More than 80 inches Natural drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 6 to 18 inches Frequency of flooding. None Frequency of ponding: None Available water storage in profile: Low (about 5.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: B/D Minor Components Goldsboro Percent of map unit: 8 percent Landform: Flats on marine terraces, broad interstream divides on marine terraces Landform position (three-dimensional): Talf Down-slope shape: Linear Across -slope shape: Linear Rains, undrained Percent of map unit: 5 percent Landform: Carolina bays on marine terraces, flats on marine terraces, broad interstream divides on marine terraces Landform position (three-dimensional): Dip, talf Down-slope shape: Linear Across -slope shape: Linear Rains, drained Percent of map unit: 5 percent Landform: Carolina bays on marine terraces, flats on marine terraces, broad interstream divides on marine terraces Landform position (three-dimensional): Dip, talf Down-slope shape: Linear Across -slope shape: Linear 18 Custom Soil Resource Report Ly—Lynn Haven fine sand Map Unit Setting National map unit symbol: 3wrf Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Farmland of unique importance Map Unit Composition Lynn haven, undrained, and similar soils: 85 percent Estimates are based on observations, descriptions, and transects of the mapund. Description of Lynn Haven, Undrained Setting Landform: Flats on marine terraces Down-slope shape: Linear Across -slope shape: Linear Parent material: Sandy fluviomarine deposits and/or eolian sands Typical profile A - 0 to 9 inches: sand E - 9 to 12 inches: fine sand Bh - 12 to 80 inches: sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: About 0 to 6 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water storage in profile: Moderate (about 8.3 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: A/D 19 Custom Soil Resource Report Mu—Murville fine sand Map Unit Setting National map unit symbol: 3wrh Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Farmland of unique importance Map Unit Composition Murville, undrained, and similar soils: 80 percent Murville, drained, and similar soils: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Murville, Undrained Setting Landform: Depressions on marine terraces, flats on marine terraces Down-slope shape: Concave Across -slope shape: Concave Parent material. Sandy fluviomarine deposits and/or eolian sands Typical profile A - 0 to 8 inches: fine sand Bh - 8 to 45 inches: fine sand C - 45 to 80 inches: fine sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 0 inches Frequency offlooding: None Frequency of ponding: Frequent Available water storage in profile: Low (about 4.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: A/D Description of Murville, Drained Setting Landform: Depressions on marine terraces, flats on marine terraces Down-slope shape: Concave Across -slope shape: Concave Parent material., Sandy fluviomarine deposits and/or eolian sands 20 Custom Soil Resource Report Typical profile A - 0 to 8 inches: fine sand Bh - 8 to 45 inches: fine sand C - 45 to 80 inches: fine sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Negligible Capacity of the most limiting layerto transmit water (Ksat): High (1.98 to 5.95 inthr) Depth to water table: About 0 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 4.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: A/D Rm—Rimini sand, 1 to 6 percent slopes Map Unit Setting National map unit symbol: 3wrq Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Not prime farmland Map Unit Composition Rimini and similar soils: 90 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunif. Description of Rimini Setting Landform: Ridges on marine terraces, rims on carolina bays Landform position (two-dimensional): Summit Down-slope shape: Convex Across -slope shape: Convex Parent material: Eolian sands and/or sandy fluviomarine deposits Typical profile A - 0 to 4 inches: sand E - 4 to 58 inches: sand Bh - 58 to 80 inches: sand C - 80 to 88 inches: sand 21 Custom Soil Resource Report Properties and qualities Slope: 0 to 6 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low (about 2.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: A Minor Components Leon Percent of map unit., 5 percent Landform: Flats on marine terraces Down-slope shape: Linear Across -slope shape: Concave St—Stallings fine sand Map Unit Setting National map unit symbol. 3wrt Elevation: 20 to 330 feet Mean annual precipitation: 38 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period., 200 to 280 days Farmland classification: Farmland of statewide importance Map Unit Composition Stallings, drained, and similar soils: 80 percent Stallings, undrained, and similar soils: 10 percent Minor components: 7 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Stallings, Drained Setting Landform: Flats on marine terraces, broad interstream divides on marine terraces Down-slope shape: Concave Across -slope shape: Linear Parent material: Loamy and sandy marine deposits 22 Custom Soil Resource Report Typical profile A - 0 to 8 inches: loamy sand E - 8 to 12 inches: loamy sand Btg - 12 to 42 inches: sandy loam BCg - 42 to 80 inches: loamy sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Somewhat poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 12 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: A/D Description of Stallings, Undrained Setting Landform: Flats on marine terraces, broad interstream divides on marine terraces Down-slope shape: Concave Across -slope shape: Linear Parent material: Loamy and sandy marine deposits Typical profile A - 0 to 8 inches: loamy sand E - 8 to 12 inches: loamy sand B - 12 to 42 inches: sandy loam BC - 42 to 80 inches: loamy sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Somewhat poorly drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 12 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 7.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: A/D Minor Components Woodington, undrained Percent of map unit: 5 percent 23 Custom Soil Resource Report Landform: Flats on marine terraces, depressions on marine terraces, broad interstream divides on marine terraces Down-slope shape: Linear Across -slope shape: Concave Rains, undrained Percent of map unit., 2 percent Landform: Flats on marine terraces, carolina bays on marine terraces, broad interstream divides on marine terraces Landform position (two-dimensional): Summit Down-slope shape: Linear Across -slope shape: Linear To—Torhunta loamy fine sand Map Unit Setting National map unit symbol: 3wrw Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period: 200 to 280 days Farmland classification: Prime farmland if drained Map Unit Composition Torhunta, drained, and similar soils: 80 percent Torhunta, undrained, and similar soils: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Torhunta, Drained Setting Landform: Flats on marine terraces, carolina bays on marine terraces, depressions on stream terraces Down-slope shape: Linear Across -slope shape: Linear Parent material: Sandy and loamy alluvium and/or fluviomarine deposits Typical profile Ap - 0 to 12 inches: mucky fine sandy loam Bg - 12 to 37 inches: fine sandy loam Cg - 37 to 80 inches: loamy sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: About 0 to 12 inches 24 Custom Soil Resource Report Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 5.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: A/D Description of Torhunta, Undrained Setting Landform: Flats on marine terraces, carolina bays on marine terraces, depressions on stream terraces Down-slope shape: Linear Across -slope shape: Linear Parent material: Sandy and loamy alluvium and/or fluviomarine deposits Typical profile A - 0 to 12 inches: mucky fine sandy loam Bg - 12 to 37 inches: fine sandy loam Cg - 37 to 80 inches: loamy sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Very poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 5.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: A/D W—Water Map Unit Composition Water: 100 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Water Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8w W, Custom Soil Resource Report Wo—Woodington fine sandy loam Map Unit Setting National map unit symbol., 3ws0 Elevation: 20 to 160 feet Mean annual precipitation: 40 to 55 inches Mean annual air temperature: 59 to 70 degrees F Frost -free period., 200 to 280 days Farmland classification: Prime farmland if drained Map Unit Composition Woodington, drained, and similar soils: 80 percent Woodington, undrained, and similar soils: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Woodington, Drained Setting Landform: Flats on marine terraces, depressions on marine terraces, broad interstream divides on marine terraces Down-slope shape: Linear Across -slope shape: Concave Parent material. Loamy marine deposits Typical profile Ap - 0 to 6 inches: fine sandy loam E - 6 to 14 inches: fine sandy loam Big - 14 to 74 inches: fine sandy loam Cg - 74 to 85 inches: sandy loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 7.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: A/D Description of Woodington, Undrained Setting Landform: Flats on marine terraces, depressions on marine terraces, broad interstream divides on marine terraces Down-slope shape: Linear Across -slope shape: Concave 26 Custom Soil Resource Report Parent material: Loamy marine deposits Typical profile A - 0 to 6 inches: fine sandy loam E - 6 to 14 inches: fine sandy loam Btg - 14 to 74 inches: fine sandy loam Cg - 74 to 85 inches: sandy loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 7.8 inches) Interpretive groups Land capability classification (irrigated). None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: A/D 27 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/nres/ detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http://www.nres.usda.gov/wps/portal/ n res/detail/national/soils/?cid=nres 142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http://www.nres.usda.gov/wps/ portal/n res/detail/national/sails/?cid=nres 142 p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres 142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb 1043084 28 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430 -VI. http://www.nres.usda.gov/wps/portal/ n res/detai I/soils/scientists/?cid=n res 142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www. nres. u sda. gov/wps/portal/n res/detail/natio nal/soi Is/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/lnternet/FSE_DOCUMENTS/nrcsl42p2_052290.pdf 29 Appendix 7-1 Wastewater Reuse Alternative Reverse Osmosis System 1500 gpm RO system $200,000 one time cost - capable of treating TDS from 500 ppm to 50 ppm Set up and Install $30,000 one time cost Total RO system Cost $230,000 Piping Cost H Units Cost/unit Total Cost 4" Pipe 1000 ft $8.00 $8,000 Installation 1000 ft $3.00 $3,000 Total Piping/Pumping Cost $11,000 Total System Cost $241,000 wastewater neuste uperaoon ano maintenance 1-o5is Pump Station 720,000 gpd 500 gpm Friction Loss 1 ft per 100 ft 10 feet Delivery Pressure 60 psi 139 feet Elevation Head 8 ft 8 feet Total 157 feet TDH Pump Efficiency 70% HP Required 26 HP KW Required 20 KW wer Cost mping Rate mping Cost mp Cost/day mp Cost/yr 0.73027809 kw-hr/1000 gal $0.04 $/1000 gal $31.55 $/day $11,515.02 $/yr Duke Energy Pipe O&M Cost rresenc value Lost 800 $/yr 6240 $/yr $40/hr - 3 hrs/week - already staffed, additional 3 hrs per week Present Value Costs Costs incurred in present yr $241,000 Costs incurred yearly $18,555.02 ending life of facilty = 20 20 current EPA discount rate 0.05 Appendix 7-2 NPDES Discharge Alternative Waste Treatment Modifications # Units Cost/unit Total Cost 8" Pipe for New Outfall 900 ft $12.00 $10,800 Piping Installation 900 ft $5.00 $4,500 New Tank in Waste Treatment 20,000 gal $15,000 Pond Cost $30,300 Total Capital Cost of NPDES Discharge $30,300 Operation and Maintenance Costs O&M Pipe 1000 $/yr Operator 6240 $/yr $40/hr - 3 hrs/week - already staffed, additional 3 hrs i Analytical Costs 2500 $/yr Total O&M Cost $9,740.00 $/yr Present Value Cost Analysis Present Value Costs Costs incurred in present yr Costs incurred yearly ending life of facilty = 20 current EPA discount rate $151,681.93 $30,300 $9,740.00 20 0.05 )er week Appendix 7-2 NPDES Discharge Alternative Waste Treatment Modifications Total Capital Cost of NPDES Discharge $30,300 3peration and Maintenance Costs D&M Pipe 1000 $/yr Dperator 6240 $/yr $40/hr - 3 hrs/week - already staffed, additional 3 hrs per week analytical Costs 2500 $/yr Total O&M Cost $9,740.00 $/yr Present Value Cost Analysis PV n r PV Present Value Costs Costs incurred in present yr Costs incurred yearly ending life of facilty = 20 current EPA discount rate 151,681.93 $30,300 $9,740.00 20 0.05 # Units Cost/unit Total Cost 8" Pipe for New Outfall 900 ft $12.00 $10,800 Piping Installation 900 ft $5.00 $4,500 New Tank in Waste Treatment 20,000 gal $15,000 Total Pond Cost $30,300 Total Capital Cost of NPDES Discharge $30,300 3peration and Maintenance Costs D&M Pipe 1000 $/yr Dperator 6240 $/yr $40/hr - 3 hrs/week - already staffed, additional 3 hrs per week analytical Costs 2500 $/yr Total O&M Cost $9,740.00 $/yr Present Value Cost Analysis PV n r PV Present Value Costs Costs incurred in present yr Costs incurred yearly ending life of facilty = 20 current EPA discount rate 151,681.93 $30,300 $9,740.00 20 0.05