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HomeMy WebLinkAbout20150041 Ver 1_Add Info 20150605 to USACE_20150605��earWater Cleamater ETivironrnentrO Consukants, Inc. June 5, 20,15 www.cvvenv.com Mr, Craig Brown US Army Corps of Engineers 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 RE: Response to Corps Comments Brickhaven and Sanford Mines Chatham and Lee County, North Carolina Action ID SAW-2014-02254.; DWR Project # 15-0041 and 42 Dear Mr. Brown, Please reference the letter dated May 6, 2015 (Attachment A) sent by the US Army Corps of Engineers (Corps) in response to the permit application submitted by ClearWater Environmental Consultants, Inc. (CEC), on behalf of Green Meadow, LLC represented by Mr. Charles Price. The pen-nit application requested written authorization for the impacts associated with disposal of coal ash at the Brickhaven and Sanford Mines, The con-nnents provided by the Corps arc listed and discussed below. Comment #1 — "This prqjecl does not need to be located within waters ofthe U.S. in order to sati & your Purpose and Need stateinent. As required by the 404(b)(1) Guidelines (40 CFR Fart 230) other practicable alternatives must be evaluated to ensure that the Least Environmentall y Damaging Praclicable Alternative (LE PA) is identified.. Please elaborate on the criteria used to evaluate other urine sites, iden4fy the mines that were consid�red, and an ewlVana lion a these alternative urine sites were deterinined .f w h�y to be unsuitable as, it applies to Purpose and Need." Charah utilized a multi-phased analysis for identification of feasible mine sites. Phase I comprised a review of the Division of Energy, Mineral, and Land Resources' (DEMLR) rnine site inventory database. 'The database search identified, 848 existing mine sites in the State of North Carolina, These 848 mine sites were ranked based on commodity (the type of'resource extracted during the mining process). Commodities are an important factor to consider due to the geology surrounding rn, inc sites with certain commodities and constituents in the raw material being mined. For example, sites that are mined for rock, stone, and sand most likely contain fractured rock which increases the potential for preferential pathways to the groundwater table. Elimination of sites with this type of underlying geology reduces the likelihood for changes in existing groundwater conditions. As another example, monitoring wells near phosphate and lithium mines tend to have an increase in phosphate and lithium concentrations because of 224 South Grove Stre(`L, 511 it(� 1; f lendersoiwille, NC 28792 t,129-698-98001 0 828-6199-9003 Rix W Craig Brown 06,05.15 Page 2 of' 14 the presence of these commodities. Due to the potential forty confusion of the origins of high concentrations of phosphate and lithium (mine vs. coal ash), mines with these commodities were eliminated, Clay mines that are conducive to the liner system requirements contained in both Coal Ash Management Act of 2014 (CAMA14) and Coal Combustion Residuals (CCR) rules were given highest rankings. These mines contain natural materials ('clay) that have a low to moderate capability of transmitting water. Phase 1 of the analysis also included a search for "active" vs. "inactive" mine sites. Inactive mines were considered to be already reclaimed; therefore, inactive mine sites would not be suitable candidates for structural fill reclamation projects. At the completion of Phase 1, 38 mines remained for analysis under Phase 2, The 38 mine alternatives, are listed in the table included for review (Attachment B). Phase 2 of the analysis involved reviewing the remaining 38 mine sites for specific location criteria consisting of. (1) Proximity to Rail — Due to the volume: of ash removal, and disposal that is required by CA1 A14, the ability to move large amounts of ash efficiently is of vital importance. Trains are one of the most efficient transportation methods, According to the Rocky Mountain Institute, an independent research organization, trains can move four times more ton-miles per gallon than trucks and typically at a lower cost, Moving ash by rail reduces the number of trucks in use; therefore, reducing and/or eliminating hauling on state maintained roads. The following criteria was considered when choosing a suitable mine site as it relates to rail proximity: a, Commercial rail line within approximately I mile of the mine site; and b. Practical construction of a rail spur after consideration of existing crossing constraints (existing highways, rivers, etc.), environmental conditions, and potential procurement of casements. (2) Trucking Access — Truck access is important in both the construction phase and the operational phase of the site. In the construction phase, truck access is vital so that all the equipment and material necessary to construct the site can be easily transported to the site. During the operation of the site, truck access allows for equipment to be brought in as necessary. Additionally, trucking ash will be used as a contingency to rail in the event rail service is temporarily disrupted, Although not all-inclusive, the following criteria was considered when choosing a suitable mine site as it relates to trucking access: a. Weight limits on bridge crossings; b. Presence of school zones; and c. Presence of residential zones and high density population. Mr. 0-dig Brown 0610.15 Page 3 of 14 (3) Proximity to Duke Energy's Existing Steam Stations ­., Although not as critical as proximity to rail and trucking access, proximity to existing steam stations was considered. The closer an existing steam station is to the mine site, the less time is required to remove, transport, and dispose oaf f ash. Due to the volume of ash removal and disposal that is required by CAMA14, the ability to move large amounts of ash efficiently is of vital importance, The table provided in Attachment B indicates the reasons why specific mine alternatives were dismissed from consideration. Of the 38 mine sites evaluated, 12 were selected for Phase 3 of analysis. These mine sites include: General Shale Brick, Inc. (5 sites), Boral Bricks, Inc. (3 Sites), Triangle Brick Company (2 sites), CEMEX Construction Materials (I site), and Lee Brick & Tile (I site). Of these 12 sites, three sites owned by General Shale Brick, Inc. were available for acquisition. Brickhaven Mine 42 (proposed), Colon Mine (proposed, identified as the Sanford Mine in the permit application), and Sanford Mine (not proposed, located less than 1.5 mile from downtown Sanford). The other 9 mine sites were not available for acquisition per communication with site ownership. The Sanford Mine (located near downtown Sanford) was eliminated due to proximity to existing high density residential areas. Therefore, Brickhaven Mine #2 and Colon Mine (identified as the Sanford Mine in the permit application) were secured by Green Meadow, LLC for the development of the coal ash structural fill and mine reclamation prof ects, Comment #2 — "In the alternatives analysis of your application, ii stales that coal ash can be used in cement and asphalt concrete. One cement companY, currently accel)(s coal ashfi-otn Duke power plants for this purpose. Please provide, detailed information as to jjRky soine or all of the coal ash cannot be used in this manner." Coal fly ash has been successfully used in Portland cement concrete (PCQ as a mineral admixture, and more recently as a component of blended cement, for nearly 60 years. As an admixture, fly ash functions as either a partial replacernent for, or an addition to, Portland c=ent,. Fly ash is added directly into ready-inix concrete at the batch plant. Fly ash can. also be inter-ground with cement clinker or blended with Portland cement to produce blended cements,. The quality of fly ash for use in PCC is extremely important. Fly ash used in concrete should be as consistent and uniform as possible. In addition, specific criteria regarding particle size, carbon content (loss on ignition), and constituent make-up (iron. and mercury) are critical in qualifying the coal ash for potential use in concrete manufacturing, When used in blended cement or as as partial replacement for PC C in ready-mix concrete, fly ash must be in a dry form. When used as a raw feed material for the production of PCC, either dry or conditioned (ponded) ash can be used if the quality meets specifications (typically, the amount of alumina and/or silica present in the ash). The net result of all these restrictions is that only a relatively low percentage (25 to 30 percent) of all the coal fly ash produced annually is potentially suitable for use in these applications. Mr. Craig Brown 06,05,15 Page 4 of 14 An extremely large inventory of ponded ash is available for reclamation and potential sale into the concrete markets. Of that volume, only a small percentage meets the quality specifications necessary for engaging these markets. The applicant has identified 6 locations capable of utilizing ponded ash that are also within the feasible transportation radius of Duke Energy facilities. These locations offer approximately 330,000 to 430,000 tons per year of available capacity. All of this capacity is within utility markets neighboring the concrete manufacturing facilities and is highly competitive; therefore, opportunities to transport ash from Sutton and Riverbend to other concrete manufacturers is limited. As stated in the permit application, Duke Energy is already sending approximately 25,000 tons of coal ash per month to the Roanoke Cement Company for their use in cement manufacturing and plans to send approximately 115,000 tons (10,000 tons per month) of coal ash as a part of ash removal from the ash stacks at Riverbend. The amount of coal ash they can use is directly related to demand for their product (cement). At this time, the Roanoke Cement Company cannot accept additional ash from Duke Energy. Comment #3 — "In .your application f6r this project, you utilize the ternz, Phase 1. Please providu clarfzcation as to what activities are specificallY involved in Phase L In, addition, please elaborate on any.ffiture phases and their potential impacts to the Waters of the United States (WOUS). Besides impacts to WO US at the Brickhaven and Sw#brd Mines, please identq other impacts to WOUS at offivite locations resultingfirom the transfer of coal ash to the Brickhaven and Saqford Mines. This would include improvements to transportation and handlingfiacilitie.s, at the Riverbend and Sutton Power Plants, as well as other, known loeations that will be eont•ibuting coal ash to these sites." As the application states, ash excavation at the Riverbend and Sutton has been phased in accordance with the proposed ash excavation plans submitted to the NC Department of Environment and Natural Resources (DENR) for approval. Phase I focuses on the removal of ash above the groundwater table. Typically, this phase includes the construction oaf f haul roads, load-out areas, and the excavation of dry ash stacks. Additional ash excavation within the ash basins at these facilities is further phased (Phases 2+) as the ash depths in the basins are advanced to reach the bottom of each existing ash pond. Phases 2+ use existing infrastructure constructed for Phase 1. Plans for the ash basin and ash stack excavations (Phase 1) at each station have been prepared and are currently under permit review with the State. No "OUS impacts have been identified within the work area for these excavations; therefore, coal ash excavation areas were not included in the 4041401 permit application. Rail load-out, truck load-out, and transportation routes have also been identified at the steam stations. As with the excavations, no WOUS impacts were identified for infrastructure improvements at the steam station sites. Plans for these improvements arc underway as a part of the ash basin excavation plans as noted above. WOO S impacts at the mine sites W Craig Brown 06J,05A Page 5 (if 14 have been identified and were included in the permit application currently under review. There are no known impacts to WOUS in subsequent phases. Comment 94 — "The application slates that "The putpose qflhe proposed project is to close ash basins at the Riverhend Steam Station and the Sialon Electric Plant 1ry,41tgusl of 2019 cis required 4y the Coal Ash Management Act of 2014 (CAAW4). " This Project PwTose is defused too broad4, and does not have any direct relation to the activityfir ivhich you are seeking a Clean, Water. Act Section 404 permit. Therejbru, ive ivould recoinmend that it he revised to state, something to the affect ,fect of- "The propose of the proposed project is to dispose of coal ash in a suitabl e manner and in an environmentally sound location, The long -lean disposal of coal ash in suitable locations will.facilitate the closing of coal ash basins across North Carolina, as required �y the CAMA 14." The applicant has redefined the project purpose as rcconiniended. The purpose of the proposed project is to dispose of coal ash in a suitable manner, using the best available technology, and in an environmentally sound location. The long-term disposal of coal ash in suitable locations will facilitate the closing of coal ash basins across North Carolina, as required by CAMA14. Comment #5 — "yaps supplied with the application indicate that there is an "Arch Culvert "' on one oJ'the streams at the Saqfo•d Alfine, and two "',Spanning Structures " at the Brick-haven Mine crossing a stream and a wetland. While these proposals do not result in a direct loss ref jurisdictional feawres, they are known to have an adverse impact upon aquatic resources and will require carnpensato)�y mitigation for their indirect impacts to jurisdictional waters. Based on our experience with these types e?f structures and depending on the quality of the aquatic resource, lve have required compensato,�V inifigation at a half the ratio that would be required of the stream were to be culverted." The Sanford Mine contains one Crossing identified as an "arch culvert" on the northwest portion of the property. The arch culvert would have indirect impacts to 0.02 acre of wetland. The wetland is in an existing dirt road and is of poor quality, a typical mitigation ratio for direct impacts would be 1:1. Indirect impacts are generally mitigated at half the full ratio. The proposed mitigation at the Sanford Mine will be increased by 0.01 acre (a 0.5:1 ratio for indirect impact associated with the arch culvert). The Brickbaven Mine contains two crossings on the Moncure Holdings site identified as "spanning structures". The spanning structure crossing the wetland will be a true bridge; therefore, no mitigation would be required for the crossing. The spanning structure crossing, the stream will be an arch culvert. The arch culvert would have indirect impacts on 90 linear feet of stream. The stream is of good quality and a typical mitigation ratio for direct impacts would be 2:1. Indirect impacts are generally mitigated at half the full ratio. The proposed mitigation at the Brickliavcn Mine will be increased by 90 linear feet (a 1: 1 ratio for indirect impact associated with the arch culvert), mr, cruig Bra V4,11 06.05.15 Page 6 of 14 The impact tables in Section 5. 1 of the permit application have been updated to reflect indirect impacts and are attached for review (Attachment C). The impacts have also been updated on the attached permit maps (Fi grure I a and I b). Proposed mitigation has been updated to reflect the following changes: 1. Mitigation for indirect impacts associated with Impact #25 at the Sanford Mine. 2. Mitigation for indirect impacts associated with Impact #12 at the Brickhaven Mine. 1 Impact #2 and #13 at Brickhaven will be mitigated for at a 2:1 ratio to allow "out of HUC" mitigation as approve by the Corps on May 14, 2015. A mitigation table has been provided for review (Attachment D). Updated acceptance letters from the Division of Mitigation Services (DDS) are also included for review (Attachment E). Comment #6 — "'A cemetery I'" pr to be the Zion Hill Coinetety ") is located at the Sari ,/b rd site. Please explain w m hat easures will be taken to preserve and protect this cemelety and allow public access." Cemeteries and grave sites are protected from defacing and desecration by State Statutes 14-148 and 14-149, The Zion Hill Cemetery, located in the northeast comer of the Sanford Mine site, is also subject to these state statutes. Its location has been added to the attached permit map (Figure la) and a 50-foot buffer has been applied. No construction traffic or work will occur within 50 feet of the cemetery and the cemetery site will be permanently fenced and gated. No improvement or maintenance to the cemetery is planned at this time. Public access to the cemetery will be provided with consent as required by State Statute 65-101. In the interest of public safety, all visitors must be escorted to and from the cemetery location. Green Meadow, LLC and its on-site representatives will require a minimum of 48 hours of notice to prepare for and provide access as noted. Access without consent is not available. Coniment #7 — "The U.S. Fish and Wildlife Service {US FICS) and the public have expressed concerns about the transportation ql'coal ash to the two project areas. Much of these concerns were addressed on page 17 of 'the application pack-age. Please clarif y it,hat steps Charah, Inc. will be taking to ininimize loss of coal ash during transport and storage at the proposed disposal location.'" As stated in the permit application, coal ash must be collected and transported in, a manner that will prevent nuisances and hazards to public health and safety (NCGS 130A-.309.216(a)(2)). The transport of ash will be achieved primarily by rail using covered gondola cars. Each rail car will be covered with a fiberglass, cover that is fitted and clamped to the car. Coal ash will be moisture conditioned to Mr. Craig Brown 06,05. 15 Page 7 of 14 20% and ash contained in rail cars will be sprayed with a water absorbent to contain any water that may rise to the surface during transport. Unloading operations at the structural fill sites will involve the removal of car covers, and the removal of coal ash from the cars using straddle carrier excavators, The excavators will place the moisture conditioned ash directly into Artie off-road dump trucks for transport to the structural fill site for placement. No interim ash storage or double-handling of ash is anticipated. Taking ash directly from the load-out area to the structural fill site for placement minimizes the possibility for loss of ash from a load-out area. The load-out area will be paved and located above a liner system designed to contain. any spillage, of ash or contact water, Additionally, any ash spillage will be collected with a vacuum truck and taken to the structural fill for placement. Any contact water from the load-out area will be collected in a sump and pumped directly into the leachate collection, system. As stated in the permit application, NCGS 130A-309.216(a)(9) requires sufficient dust control measures to minimize airborne emissions and prevent dust from becoming a nuisance or safety hazard. The primary potential source of dust emissions on site is the top-deck area and active area of structural fill placement. These areas are at higher risk for producing dust due to vehicular and equipment traffic and earthwork -like construction. Exterior slopes are less of a dust control concern,, as they have interim soil cover which is vegetated. Dust emission can be controlled through a variety of methods. These methods may be characterized as products and/or applications, structural wind breaks and/or covers, and operational methods. Dust control methods for the facility include- watering, establishing vegetative cover, mulching, wind breaks, temporary coverings (i.e. tarps), spray applied dust suppressants, calcium chloride, soil stabilizers, interim and operational soil cover, and modification of the active working area and operations during dry and windy conditions. The site operator may use, and is not limited to, combinations of these dust control methods or any method that is technically sound to control dust for specific site conditions. The effectiveness of the dust control methods implemented will be evaluated through visual observation of dust prone areas. Equipment operators will continuously observe the active face and other active construction areas for dust emissions. If fugitive dust emissions are observed and observations indicate dust control measures are not achieving their intended purpose, then appropriate corrective actions will be taken. Dust control measures would be reapplied,, repaired, or added as necessary to control dust emissions. The site operator will construct, install, apply, and/or repair dust control measures prior to the end of each work day to control dust emissions during non-operating hours. The site operator will also implement dust control measures as preventative controls rather than in response to fugitive dust emissions. A wheel wash system will be used if necessary to minimize dust tracking outside of the facility. Mr. Craig Drawn 06,05.15 Page 8 col` 14 Comment #8 — "There ivere several public coinivents expressi rig concern about possible groundwaler containinationfi-om coal ash at these two reclarnation site.,,?. Although .you will address concerns related to water quality and groundivater monitoring through the Alorth Carolina Division ql'Water Resources and the 401 process, ive re, .fer thefiollowing representative cominentsfior reference:" Comment #8a - "The Southern Environmental Law Center (SELC), hl a comment letter to the USA CE dated March 23, 2015, recommended that two monitoring wells, be added tit both reclamation sites, . In addition, they have recornmended that monthly monitoring qf grow ndwa,ter elevations be required .for the.11irst year in order to verify assu mptions about seasonal high water levety and that back-groundsainpling should be conducted on a quarterly basis for the_ rst year in order to evaluate possible seasonal variation in water quality,," A complete Water Quality Monitoring Plan was included in the Structural Fill permit application submitted to DENR. Groundwater and surface water monitoring is being performed in accordance with CAMA14 and CCR rule requirements. A sufficient number of wells have been sited at each of the mine sites as required by the Division of Waste Management through implementation of CAMA14 and Subtitle D standards. Ground water levels have been tinder review since July of 2013 for the sites and will continue to be monitored during construction of each cell within the limits of the structural fill boundary. Adjustments will be made as needed to maintain the required separation to groundwater. Baseline water quality conditions for the inine site's are being established as specified in the CCR rules through the implementation of 8 sampling events, with at least one event occurring prior to the placement of coal ash as specified in the permit application for the projects. By establishing the baseline water quality condition for the site, the projects' water quality standards are set and can be used as a comparison for effluent waters (groundwater and surface water) leaving the site. Comment #8b — "The Haw River Assembly, an a comment letter to the USACE dated April 2, 2015, asked ff there was a "plan.ffir baseline monitoring ttf neighbors' drinking water wells in (in area surrounding the inines? " The concel•17 with contaminated drinking vvater was also addressed ky other members of the public during the comment period," At this time, Charah and Green Meadow, LLB have no plans to monitor drinking water wells on adjacent properties. DENR has the ability and the legislative support to perform a well water quality assessment for properties surrounding the mine sites should they feel it is warranted. Charab has noted publicly that it would sample the well water of neighboring properties upon request. This well sampling will be conducted by a third party at no cost to the property owner. As stated above, baseline water quality conditions for the mine sites are being established as specified in the CAMA14 and CCR rules. As long as the baseline water quality standard for each of the mine sites is maintained, there would be no effect on down-gradient properties including drinking water wells. Mr. Cmig Brom 06.05�. 15 Page 9 of 14 Comment #8c — "In a petition signed 1av 110 residents q/' Chatham Couqv, and submitted to our office via email on April (5, 2015, concerns ivere expre.Ysed about coal ash containing high levels qfheaij metals such as arsenic, lead,' mercury, and other toxic substances, it,hich requires utmost precautions and protections or handling transporting, and disposal. ' This, petition and a number of other coinmentors expressed concerns about the disposal of leachate, and questioned whether numicipal wasteivaler treatment plants would be able to handle, hemy metals and other toxins contained in coal ash. Many commenters were also concerned that the liners lining! the coal ash pits i'vould eventual�y deteriorate and toxic substances would be released into the streams, wetlands and groundwater. Tease address concerns about heavy metals and other toxic substances in the coal ash including: the precautions and ,protections or handling, transporting, and disposal oftoal ash to insure that heaiy metals and other toxins do not escape into the environment; the adequacy of municipal wastewater treatments plants to handle these substances in the leachate; and the potential of heai-y metal and leachate entering the watershed because qj"deterioratinq liners," As discussed in the response to Comment #7, transport of ash will be achieved primarily by rail using covered gondola cars. The cover systern minimizes the opportunities for loss, of ash or contact water through the use of containment in the bed, absorbents placed in the bed with the ash, and covers intended to contain and seal the bed while in transport. Within the structural fill boundary, a composite liner system will be used. Specifically formulated geocomposite clay liners (GCL) treated with polymers needed to be chemically resistive to coal ash will be installed along the entire base of the structural fill limits. High density polyethylene (HI PE) flexible membrane liners will be placed on top of and in direct contact with the GCL to provide an additional barrier against the coal, ash constituent migration into the environment. Several industry studies have been conducted throughout the years that prove the HDPE liners are chemically resistant to types of constituents that can be found in coal ash. These same liners have been used for years to contain both municipal solid waste as well as hazardous waste across the country. Several reports have been performed by the Geosynthetic Institute (G I) that have determined the resistivity of manufactured liners, as, well as predicted the lifespan of these materials. Based on the environmental conditions in which the liners will reside with regard to the coal ash materials, G testing indicates a lifespan of more than 400 years for HDPE liners (Attachment F). The contact waters or leachate that is generated by the handling and placement of the coal ash will dissipate over a period of I to 2 years after the structural fill has been closed. Coal ash will reach a state: defined as terminal, moisture content and will cease to release any leaebatc or contact waters. Charah continues to work with the City of Sanford to secure an industrial discharge permit allowing for the discharge of leachate into the public sewer system. To determine the options available for discharge, Charah and the City are collaborating to perform a waste characterization for the leachate as well as a treatability assessment for the treatment plant,, While the assessment with the Mr. Craig Brown. 06.05J 5 Page 10 of 14 it of Sanford continues, Charah has contracted a private wastewater treatment provider to safely and effectively treat leachate at the mine sites. Commen't #9 — "The lVorth Carolina Wildlife Resources Commission (NOITC), in as cointnent letter to the USA CE dated April 2, 2'015, recommended ".-a mininnim 200- fbot undisturbed, native,fibrested hqf .fer alon 9 perem?ial streams, and a 10(J -fbot bqI ,P,)- along intermittent streams and ivellantis is advised. " Further stating drat Maintaining tin disturbad, forested bqffers along these areas will tninirnize impacts to aquatic and terrestrial wildlife resources, ivater quality and aquatic habitat both within and dou,nstrea?n of the project area. In addition, forested riparian bqffiers protect, water qualit y y swath zing sireenn banics antl filtering slormwater rung/ '" Meaty q the puhhe comments received �y the USACE also expressed concerns as out protecting existing stretunsfi-am pollutants and sedimentiltiring stormy events at the project sites. In light of these comments, please, evaluate and care meni on the NCff7RCs reconnnendationfior X1111 -foot bufftrs on perennialstreanis and 100- fibot bt,!f ftrs along interinittent streams and ivetlands. Named and unnamed tributaries on both sites are classified by the Division of Water Resources as "WS-IV". According to 15A NCAC 02B.0216, a minimum 30-foot vegetative buffer for development is required along all perennial waters. Additionally, CAMA14 130A-309,216(c) restricts placement of coal ash within 50 horizontal feet of the top of the bank of a perennial strearn or other surface water bodies. Undisturbed streams (perennial and intermittent) on both sites will have a 50-foot undisturbed woody buffer which complies with both state rules. Buffers beyond what is required by CAMA14 and 15A NCAC 0213.0216 within proximity of the working limits of 'the structural fill sites are not feasible. Considering the large scope of the project which is necessary to meet the regulatory requirements for construction and operation of the projects, stream buffers beyond what is required by state rules cannot be accommodated. Requiring larger buffers would require significant changes to the site plan including relocation of stormwater basins and reconfiguration of the coal ash cells. Significant efforts have been undertaken to avoid streams and wetlands at the mine sites. As noted in the application, 75% of strearns have been avoided at the Sanford and Brickhaven Mines. Corry ment #10 — "The NCWRC recommended relocation of "...streams using natural channel design methods. Y'streains cannot be relocated, stream channels should he diverted to Prevent suftiee watersfirom coming into contact with disposed materials. " The loss of'flow ftom impacts to upstream tributaries could negatively impact stream quality downstream, cis well cis base flmvs. Please evaluate the potential for stream relocation, and the downstream impacts fi•oin losses to upstream TFOUS, as wall as qffbrts to prevent sue faace watersfioin coming into contact with disposed materials." mr.,Craig Brown &05AS Page I I of 14 Stream relocation is not feasible for impacted strearn segments at the Sanford and Bfickhaven Mine sites as there is no practical location for relocation. Generally, relocated stream segments are relocated within their, same valley or topographic crenulation. Because the fill cells and associated basins impact stream channels and upland areas surrounding the stream channels, there will be no available land adjacent to impacted streams for relocation. No change,; to existing, drainage patterns or watershed boundaries will occur as a result of the proposed projects. Erosion and sediment controls will be installed as required by regulatory standards to protect the water quality of down-gradient drainage features. The proposed projects include stormwater management systems comprised of slope drains, culverts, perimeter ditches, sto,rmwater basins, etc. Stormwater and runoff (non-contact water) that would normally enter the streams and wetlands would he collected by the stormwater management system (during all phases of the project). Stonnwater and runoff would be directed to stormwater basins for treatment and subsequently discharged to the unnamed tributaries and wetlands adjacent to the fill areas. Storinwater and runoff in the watershed will remain in the watershed and continue to provide hydrology to the stream channels and wetlands. Stonnwater and runoff from the site will be observed to determine if conditions of drainage remain in their current state or are improved. Base flows in tributaries downstream from the st-Uctural fill sites should remain equal to their current state. Comment #11 — "The Chathani Coun(y petition also states that the heavy flow 0 track and train traffic ivill increase sqfety issues, i.e. accidents, spillage, fly ash, noise, and air polhelion. Numerous other comments, received at our ollice, Rain both Chathain and Lee Counties, expressed similar concerns. In light of these concerns, please address, the precautions (speed calllv: accidents, spillage and noise) taken in the transporlofcoal ash at these two sites." Based upon the existing train traffic in the area as defined by CSX, the, community will not experience a significant increase in train traffic. A train comprised of approximately 110 cars will travel to the sites an average of every 3 days transporting approximately 7,740 tons of coal ash. As noted in the response to Comment #7, the transport of ash will be achieved primarily by rail using covered gondola cars which would minimize spillage from train cars, Additionally, Charah has an Emergency Action Plan in the event ash is spilled from rail cars. All rail transportation routes will be managed by CSX; therefore, all transportation of coal ash by rail will be performed in accordance with Code of Federal Register (CFR), Title 49, Subtitle B, Chapter 11 (Federal Railroad Administration) standards. 'Train personnel are trained, and tested in accordance with CFR 49.2,42.119 (Training) and 49.242.121 (Knowledge Testing). Operational performance is monitored and documented by local CSX management staff as required by CFR 49.242.123 (Monitoring Operational Perfbimance) which mandates monitoring the conduct of certified conductors by performing, unannounced operating rules compliance tests. Track infrastructure is Mr, Craig Brown 06.05,15 Frig e E of 14 inspected and maintained as specified in CFTC 49.213 (Track Safety Standards) and all signal systems that govern train movement are maintained as outlined in CFTC. 49.233 (Signal 'System Reporting Requirements). Train noise is regulated by CFR 49.2l fl (Railroad Noise EmiSSIOD Compliance Regulations). Trucking ash will be used as a contingency to rail in the event rail service is temporarily disrupted,. Truck operators are required to be properly licensed and insured per State standards, attend Charah Safety Orientation, and remain compliant with all applicable Charah safety rules, Drivers and their trucks are subject to inspection and shall be monitored by Charah site management while on-site and traveling over the road. Copies of safety training and inspection documents shall be maintained on-site by Charah site management. Additionally, Charah has an Emergency Action Plan in the event ash is spilled from trucks. Comment #12 — "The Chatham Count), petitionfurther states that the "Transport and storage ql'Coal Ash at adversely q#ct the econoinies o flhe communiVIcoumy. Numerous other comments, received at our qffice, fi-om both Chatham and Lee Counties, expressed similar concerns. In addition, several commenters are concerned that the proxitnity of their properties to the mine, sites will result in a devaluation qf their Properties. In light of these concerns, please address how the transport anel storage Qf coal ash will ajfeci the economies of the host communities1counties, including property values near the mine s and within the two counties, " Charah has contracted Haley & Aldrich, Inc. to conduct an Environmental Justice and Economic Analysis review of current and future effects of the project on surrounding communities. The report includes, but is not limited to, the following: establishment of a study area, discussion of 'transportation, identification of existing disamenities, discussion of benefits to reclamation, property value evaluations, and a discussion of enviromilental Justice. The report entitled "Qualitative Analysis Relevant to Socioeconornics and Environmental Justice Issues for the Colon Mine and Brickhaven Mine Reclamation Projects" is included for review (Attachment G). Comment 413 — "List ajy other authorizations required far thisprqject." Below is a list of additional authoti7ations required for the proposed projects: Permit Type Permit # Mine Permit 19-25 (Brickhaven) Permit 53-05 {Sanford) NPD S Permit NCG020354 (Brickhaven) � 11,ennit NCG020854 (Sanford) Status Received 01/23115 Received 01/23/15 Received 12/16/14 Received 12116/14 Mr- Craig Brown 06.05.15 Page 13 of 14 Ero%ion and Sediment Control CSX Rail Structural Fill DEMLR Permit 2015-011 (Sanford - North Tract) Received Chadiam County (Brickhaven Rail) Pending Rail Approval (Brickhaven) Rail Approval (Sanford) Permit Sir O14 -3. (Brickhaven) Permit SW014-5306 (Sanford) Pending Pending Pending Pending. Comment 14# - "lls you mc�y be aware, in accordance with Executive Order 12898, we tire responsible Jbr identi oing and addressing disproportionately high and adverse horn an health or environmenial efficis on ininorio, and low-income populations. Based on an initial review of available census data qf the pate ntialtv af fecte conities, " e have determined that there is potentially a disproportionate impact to a local ininority population. We will need to continue to evaluate this issue during permitting rev i ew process." Charali has contracted Haley & Aldrich, Inc, to conduct an Environmental Justice and Economic Analysis review of current and future effects of the project on surrounding communities. The report includes, but is not limited to, the following: establishment of a study area, discussion of transportation, identification of existing disamenities, discussion of benefits to reclarnation, property value evaluations, and a discussion of environmental justice. The report entitled "Qualitative Analysis Relevant to Sociocconomics and Environmental Justice Issues for the Colon Mine and Brickhaven Mine Reclamation Projects" is included for review (Attachment G). Modification to Permit Application After additional evaluation and design, the rail spur at the Brickhaven Mine has been realigned. Original plans showed the rail line entering the Brickhaven site and taking an irnmediate turn to tile northeast. It was determined that as the rail line passed beneath Duke Energy's existing transmission line, the rail line would be at an elevation that would cause rail cars to touch the hanging transmission lines, The realignment eliminates this situation. The realignment includes one additional wetland impact of 88 square feet or 0,002 acre (Impact #13); all other impact will remain the same. The: area around the realigned rail spur will be used as a stock pile area and rail side support area. The impact map (Figure lb), impact table (Attachment C),, and mitigation table (Attachment D) have all been updated to reflect the above change. Mr- Craig Brown 06.05.15 Page 14 of 14 The applicant believes the infonnation submitted in this package addresses all issues set forth by the Corps in their letter dated May 6, 2015. Responses to additional agency comments will be submitted under a separate cover by July 1, 2015. Should you have any questions or comments conQerning this project please do not hesitate to contact me at 828-698-9800. Sincerely, Rebekah L. Newton R. Cl Project Biologist Principal Cc: NC Division of Water Resources - Jennifer Burdette Attacbment A Corps Comments (dated May 6, 2015) DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403-1343 LAY" Regulatory Division/1200A Action 11). SAW-2014-02254 Mr, Charles Price Green Meadows, LLC 12601 Plantside Drive Louisville, Kentucky 40299 Dear Mr. Price, May 06, 2015 Rererence our March 5, 2015, Public Notice for die proposed mine reclamation project located at the Brickhaven and Sanford Mines. The Brickhaven Mine is located off Moncure- Flatwood Road approximately 2 miles east of MonCUre, in Chatham County, North Carolina. The Sanford Mine is located off Brickyard Road approximately I mile northeast of Sanford, in Lee County, North Carolina, The project would perinanently impact a total of 4,166 linear feet of warm water stream, and 1.14 acres of non-isolated wetlands. Specifically, jurisdictional impacts at the Brickhaven site would impact, 2,450, linear feet of stream channel, 0.05 acre of non-isolated wetlands, and 0.5 acre of isolated wetlands, The jurisdictional impacts for the S,anford site would impact 1,,716 linear feet of stream channel and 1.09 acres of wetlands. The non - isolated wetlands and unnamed tributaries at the Brickhaven site flow into Gulf and Shaddox Creek, while at the Sanford site, the non-isolated wetlands and unnamed tributaries flow into Roberts Creek. Both of these Creeks are in the Cape Fear Basin (8-Digit Cataloging Unit 03030004 and 03030003, respectively). To help us with our review of this proposal, some additional information is required as listed below; 1. This project does not need to be located within waters of the U.S. in order to satisfy your Purpose and Need statement, As required by the 404(b)(1) Guidelines (40 CFR part 230) other practicable alternatives must be evaluated to ensure that the Least Environmentally Damaging Practicable Alternative (LEDPA) is identified. Ptintad an is Ro CYC100 papef Please elaborate on the criteria used to evaluate other inine sites, identify the mines that were considered, and an explanation of why these alternative mine sites were determined to be unsuitable as it applies to Purpose and Need. 2, In the altcrnatives, analysis of your application, it states that coal ash can be used in cement and asphalt concrete. One cernent company currently accepts coal ash From Duke power plants for this purpose. Please provide detailed information as to why some or all of the coal ash cannot be used in this manner. 3. In your application for this project, you utilize the term, Phase I , Please provide clarification as to what activities are, specifically involved in Phan o 1. In addition, please elaborate on any future phases and their potential impacts to the Waters of the United States (W US). Besides impacts to WOUS at the Brickhaven and Sanford Mines, please identify other impacts to WOUS at offsite locations resulting from the transfer of coal ash to the Brickhaven and Sanford Mines, This would include improvements to transportation and handling facilities at the Riverbend and Sutton Power Plants, as well as other, known locations that will be contributing coal ash to these sites. 4. The application states that "The purpose of the proposed project is to close ash basins at the Rive•bend Steam Station and the Sutton Electric Plant by August of 2019 as required by the Coal Ash Management Act of 2014 (CAMA 14)." This Project Purpose is defined too broadly and docs not have any direct relation to the activity for which you are seeking a Clean Water Act Section 404 permit. Therefore, we would recommend that it be revised to state something to the effect of. "The purpose of the proposed project is to dispose of coal ash in a suitable manner and in an environmentally sound location. The long-term disposal of coal ash in suitable locations will facilitate the closing of coal ash basins across North Carolina, as required by the CAMA 14. " 5. Maps supplied with the application indicate that there is an "Arch Culvert" on one of the streams at the Sanford Mine, and two "Spanning Structures" at the Brickhaven Mine crossing as stream and a wetland. While these proposals do not result in a direct loss of jurisdictional features, they are known to have an adverse impact upon aquatic resources and will require compensatory mitigation for their indirect impacts to Jurisdictional waters. Prinluden G) poryded Npur W Based on our experience with these types of structures and depending on the quality of the aquatic resource, we have required cornpensatoi-y mitigation at a half the ratio that would be required if the stream were to be CUlverted. 6. A cernetery ("presurned to be the Zion Hill Cemetery") is located at the Sanford site. Please explain what measures will be taken to preserve and protect this cemetery and allow public access. 7. The U.S. Fish and Wildlifb Service (USFWS) and the public have expressed concerns about the transportation of coal ash to the two project areas. Much of these concerns were addressed on page 17 of the application package. Please clarify what steps Charah, Inc. will be taking to minimize loss of coal ash during transport and storage at the proposed disposal location. 8, There were several public comments expressing concern about possible groundwater contamination from coal ash at these two reclamation sites. Although you will address concerns related to water quality and groundwater monitoring through the North Carolina Division of Water Resources and the 401 process, we refer the following representative comments for reference: (a) The Southern Environmental Law, Center (SELC), in a comment letter to the USACE dated March 23, 2015 (copy enclosed), recommended that two monitoring wells be added at both reclamation sites. In addition, they have recommended that monthly monitoring of groundwater elevations be required for the first year in order to verify assumptions about seasonal high water levels and that background sampling should be conducted on a quarterly basis for the first year in order to evaluate possible seasonal variation in water quality. (b) The Haw River Assembly, in a comment letter to the L1 ACE dated April 2, 2015 (copy enclosed), asked if there was a ` "plan for baseline monitoring of neighbors' di-iriking water wells in an area surrounding, the mines?" The concern with contaminated drinking water was also addressed by other members of the public during the conunent period. FrInted Dn 0 A ocyd od Papor M (c) In a petition signed by I 10 resident,-, of Chatham County, and submitted to our office via email on April 8, 2015 (copy enclosed), concerns were expressed about coal ash containing "... high levels of heavy metals such as arsenic, lead, mercury, and other- toxic Substances, which requires utmost precautions, and protections for handling, transporting, and disposal," `17his petition and a number of other corninentois expressed, concerns about the disposal of leachate, and questioned whether municipal wastewater treatment plants would be able to handle heavy metals and other toxins contained in coal ash. Many commenters were also concerned that the liners lining the coal ash pits would eventually deteriorate and toxic substances would be released into the streams, wetlands and groundwater. Please address concerns about heavy metals and other toxic substances in the coal ash including: the precautions and protections for handling, transporting, and disposal ofcoal ash to insure that heavy metals and other toxins do not escape into the environment;, the adequacy of municipal wastewater treatments plants to handle these substances in the leachate; and the potential of heavy metal and leachate entering the watershed because of deteriorating liners. 9, The North Carolina Wildlife Resources Commission (NCWRQ, in a comment letter to the 'USACE dated April 2, 2015 (copy enclosed), recommended "—a minimum 200- foot undisturbed, native, forested buffer along perennial streams, and a I 00-foot buffer along intermittent streams and wetlands, is advised."' Furdier stating that "Maintaining undisturbed, forested buffers, along these areas will minimize impacts to aquatic and terrestrial wildlife resources, water quality and aquatic habitat both within and downstream of the project area, In addition, forested riparian buffers protect water quality by stabilizing strearn banks and filtering stormwater runoff." Many of the public comments received by the USACE also expressed concerns about protecting existing streams from pollutants and sediment during storm events at the project sites. In light of these comments, please evaluate and comment on the NCVIRC's recommendation for 200-foot buffers on perennial streams and l00 -foot buffers along intermittent streams and wetlands,. Prfrue-d on 19 Pi dod Paper M 10. Ilie NCWRC recommended relocation of ". –streanis using natural channel design methods, If strearns cannot be relocated, stream channels should be diverted to prevent surface waters from coming into contact with disposed materials." The loss of flow from impacts to upstream tributaries could negatively impact stream quality downstream, as well as base flows. Please evaluate the potential for stream. and the downstream impacts from losses to upstream WOUS, as well as efforts to prevent surface waters from coming into contact with disposed materials. I I , The Chatham County petition also states that "—the heavy flow of truck and train traffic will increase safety issues, i.e. accidents, spillage, fly ash, noise, and air pollution." Numerous other comments received at our, office, from both Chatham and Lee Counties, expressed similar concerns, In light of these concerns, please address the precautions (specifically: accidents, spillage and noise) taken in the transport of coal ash at these two sites. 12. The Chatham County petition further states that the "Transport and storage of Coal Ash would adversely affect the economics of the community/county." Numerous other comments received at our office, from both Chatham and Lee Counties, expressed similar concerns. In addition, several commenters are concerned that the proximity of their properties to the mine sites will result in a devaluation of their properties, In light of these concerns, please address how the transport and storage of coal ash will affect the economies of the host conununitics/countics, including property values near the mines, and within the two counties. 13. List any other authorizations required for this prqject. 14. As you may be aware, in accordance with Executive Order 12898, we are responsible for identifying and addressing disproportionately high and adverse human health or environmental effects on minority and low-income populations. Based on an initial review of available census data of the potentially affected communities, we have determined that there is potentially a disproportionate impact to a local minority Population. We will need to continue to evaluate this issue during permitting review process. PrIded ors @ ReUded Paper Yow response to these comments are important to our review of your pr -oposal and, should lie provided by June 5, 2015, to avaid delays in the review of your application. If you have questions or comments, please contact Mr. Craig Brown at the Raleigh Regulatory Field Office address, telephone (919) 554-4884 ext. 35. Siriccrely, Jean B. Gibby Chief", Raleigh Regulatory Field Office Enclosures: (as stated) cc: (with enclosures): Jennifer 13-urdette NCDT!-,N-R, Division of Water ResOLIXOS Water Quality Programs 1617 Mail Service Center Raleigh, North Carolina 27604 NONA MI G nocyded Fapof Your response to these comments are important to our review of your proposal and should be provided by June 5, 2015, to avoid delays in the review of your application. If you have questions or comments, please contact Nfr, Craig Brown at the Raleigh Regulatory Field Office address, telephone (919) 554-4884 ext. 35, Sincerely, FILE NA,ME:SAW-2014-0225Chai-aliCoaI Ash Disposal L(r.doe CESAW-RG-R/CB/jat CESAW-RG-R/FILE CESAW-RG-R/MAIL105/06/15 Jean B. Libby Chief, Raleigh Regulatory Field Office Enclosures: (as stated) cc: (with enclosures): Jennifer Burdette NCDENR, Division of Water Resources Water Quality Programs, 1617 Mail Service Center Raleigh, North Carolina 27604 FdMed an 19 Recycjed� Paper Attachment B Mine Alternatives Table Reason for Dismissal of Alternative Phase I Phase 2 Phase 3 Notes Proximity to Trucking Proximity to Available for Operator Mine Name County Inactive Rail Access Duke Stearn Acquisition Stations ,Boral Bricks Inc Panther Creek Mine Rowan . ..... X Boral Bricks Inc 1 Thomas Mine Rowan x Boral Bricks, Inc V Gold Hill Mine Ran ow X CEMEX Construction Materials I Eden Quarry Rockingham Cunningham Brick Coiaap any Beck Mine Chatham X Cunningham Brick Company Davidson II Mine Davidson General Shale Brick, Inc. Brickhaven Mine No. I Chatham General Shale Brick, Inc. Brickhaven Mine No. 2, Chatham Available General Shale Brick, Inc. Gulf Mine Chatham X General Shale Brick, Inc. Colon Mine- Lee �Available General Shale Brick, Inc. Sanford M in Available but Disrrtissed (see response letter) Harmnill Construction Co Inc Zion ChMine Rowan X Hanson Brick East, LLC Anson County Mine Anson X 'Hanson Brick East LLC I Howell Mine Nos I & 2 Anson X I Hanson Brick East LLC 1 Gulf Mine No. 3 Chatham X Brick East LLC Pleasant Garden Plant #1 Guilford x -Hanson Hanson Brick East LLC Plant #3 Guilford Hanson Brick East LLC PG Farm Mine Guilford X Hanson Brick East LLC Sampson Mine II Sampson Hanson Brick East LLC Kendrick Mine Union X Lee Brick & Tile Sanford Mine Lee X :Nash Brick Company Ita Mine Halifax x Pine Hall Brick Company, Inc. Madison Pomona Mine Rockingham X Pine Hall Brick Company, Inc. Young Webb Mine Rockingham Pine Hall Brick Company, Inc. Chilton Van Noppen Rockingham X jPine Hall Brick Company, Inc. Dr. Martin Mine . .... ... . Rockingham X I . Pine Hall Brick Company, Inc. Galloway Mine Rockingham X jPine Hall Brick Company, Inc. Kluttz Mine Stokes X Pine HaII Brick Compan y, Inc. Pipe Plant Mine Stokes IStatesville Brick Co 'fredell Pit No. 2 Iredell IStatesville Brick Co Gold Hill Mine Rowan 1 x I Statesville Brick Company Statesville Brick 11 Mine Iredell ITaylor Clay Products Candor Mine Montgomery X Taylor Clay Products Inc Clearwater Mine Rowan Triangle Brick Company Wadesboro Mine Anson X Triangle Brick Company Merry.Caks Site I Chatham X Triangle Brick Company Merry Oaks Site #2 Chatham Triangle Brick Company , Durham Mine Durham X *All mines listed above have been evaluted for commodity as a part of Phase I analysis. "Mine sites must pass the Phase I before being analyzed in Phase 2. Mine sites must pass Phase 2 before being analyzed in Phase 3. Attachment C Updated Impact Table (Section 5.1 of the Pennit Application) ,r'he proposed project includes the following stream and w(-,,tland impacts at the Sanford and Brickhaven Mines (Figures la and lb),: Impact # 3 6 10 13 15 21 22 23 2,4 Total Impacts per site; Sanford - Streams Linear Feet I Type of Impact 405 Fill Cell and SEC Structure 201 Fill Cell and SEC Structure 660 Fill Cell and SEC Structure 217 Fill Cell and SEC Structure 96 Fill Cell 23 Fill Cell 2 Road Crossing 100 Railroad 2 Road Crossing 10 Road Crossing 1,716 12 Brickhaven - Streams Impact # Linear Feet Type of npact 1 320 SEC' Structure 3 906 Stockpile Yard and SEC Structure 4 913 Stockpile Yard and SEC Structure 5 311 SEC Structure 12* 90 Arch Culvert Total 2,540 SEC Structure *new impact added Sanford - Wetlands (non-isolated) Impact # Acres Typc of Impact 1 0,005 SEC Structure 7 OJI SEC Structure 4 4. 0.03 Fill Cell 5 O.14 Fill Cell 7 0.1,9 SEC Structure 8 U9 SEC Structure 9 0.07 SEC Structure 12 0.02 Fill Cell 14 0.04 Fill Cell 16 0,10 Fill Cell 17 0.24 Railroad 18 10.03 Railroad 19 OM Railroad 20 0.004 Railroad 25* 0.02 Arch Culvert Total 1.11 Brickhaven - Wetlands (non-isolated) Impact # Acres Type of Impact 2 0.04 SEC Structure 10 0.01 SEC Structure 13* 0.002 Railroad Total 0.05 Brickhaven - Wetlands (isolated) Impact # Acres Type of Impact 6 0.08 Fill Cell 7 0.01 Fill Cell 8 0.29 Fill Cell 9 0.10 Fill Cell. 11 0.02 SEC Structure Total 0.50 Total impacts (for Sanford Mine and Brickhaven Mine): Strearus Sanford 1,716 Brickhaven 2,540 Total Streams 4,256 Wetlands (non-isolated) Sanford Brickhaven Q 0.05 Total Wetlands (no.n-isolated) Q 1.16 Wetlands (isolated) Sanford 0 Brickhaven 0.50 Total Wetlands (isolated) 0.50 Attachment D Mitigation Table Sanford - Streams Impact # Linear Feet Mitigation Ratio (x.1) Basic Mitigation Requirement HUC Notes 3 405 1 405 CF04 Total 6 1 201 1 201 CF04 CF02 10 660 1 660 LCF04 Brickhaven 11 217 217 CF04 -o 13 96 1 I 96 CF04 15 23 1 23 CF04- 21 2 1. 2 CF04 22 A, 100 1 100 CF04 23 2 1 2 CF04 24 10 10 Total 1,716 1,716 Sanford - Wetlands Impact# Acres Mitigation Ratio (x:1) Basic Mitigation Requirement HUC Notes 1 0,005 1 1 0.005 CF04 2 0.11 1 0.11 CF041 4 0.03 1 a03 CF04 5 0.14 1 1 014 0104 7 0.19 1 0,19 CF04 8 0�09 1 0.09 CF 9 0.07 1 0.07 CF04 12 0.02 1 OX2 =04 14 0,,04 1 0.04 1 CF04 16 0.10 1 0.1 CF04 17 0.24 1 0.24 CF04 18 0.03 1 0.03 CF04 19 0,02 1 0.02 CF04 20 U04 1 0,004 CF041 25* 0,02 03 0.01 CF04 arch crulvert - indirect impacts (Ralf of 1:1 ratio) Total 1.11 L 1.10 *newly added mitigation lBrirkhaven - Streams Impact Linear Feet Mitigation Ratio (x:1) Basic Mitigation Requirement UC HUC Notes 1 320 1 320 CF02 3 906 1 9015 F02 4 913 1 913 CF02 5 311 1 312 1 CF02 12* 90 1 - 90 CFO culvert indirect impacts (half 2:1-ratio) E Total 2,540 2,njarch 540 *newly added mitigation Brickhaven - Wetlands Impact Impact # Ac res Mitigation Ratio (x.:l) Basic Mitigation Requirement I HUC INotes 2 OV 2 0.08 t.!�F02 adding to CF04 -'"out of HUC" (double of 1:1 ratio) 6 0.09 0,08 LSLD4 7 0L01 0,01 CF04, 8 0.29 C FLO 4, 0 9 mo DAG LCF041 10 0.01 1 0,01 CF04 11 0.02 1 0.02 CF04 13* 0.002 2 0.0,04 LSEE adding to CF04 - "out of HUC" (double of 1:1. ratio) Total 0.55 0.59 L-1 *newly added mitigation Total Mitigation Required by HUC- Stream (LF) 15anford CF04 I CF02 Grand Total 11,716 0 Bricki Javen 0 [1H,716t2a,54 2,540 Total 0 4,2�6 Total Mitigation Required by HUC- Wetland (AC) CF04 CF02 Grand Total Sanford 1.10 0 Brickhaven 0.59 0 Total 1-69 -o 1.69 Attachment E DMS Modified Acceptance Letter (dated June 4, 2015) RENEVR North Carolina Department of Environment and Natural Resources Charles Price Green Meadows, LLC 12601 Plantside Drive Louisville, KY 40299 Project: Brickhaven and Sanford Mines Ecosystem Enhancement Program Donald: R. van der Vaart Secretary June 4, 2015 Expiration of Acceptance: December 4, 2015 County: Chatham/Lee The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept payment for compensatory mitigation for impacts associated with the above referenced project as indicated in the table below. Please note that this decision does not assure that participation in the NCEEP will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NCEEP will be approved. You must also comely with all other state. federal or local government vermits. reiaulations or authorizations associated with the vroposed activity including SL 2009-337: An Act to Promote the Use of Compensatory Mitigation Banks as amended by S.L. 2011-343. This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of the issued 404 Permit/401 CertificationtCAAIA permit within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permits) an invoice will be issued based on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the In- Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www,nceep.net. Based on the information supplied by you in your request to use the NCEEP, the impacts that may require compensatory mitigation are summarized in the following table. The amount of mitigation required and assigned to NCEEP for this impact is determined by permitting agencies and may exceed the impact amounts shown below. River Basin CU Stream (feet) Wetlands (acres) Buffer I Buffer 11 i LocationI Cold Cool Warm Riparian Non-Riparian Marsh (Sq. Ft.) Coastal Impact Cape Fear 1 03030002 1 0 0 2,540 0 0 1 0 p 0 0 Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. The mitigation will be performed in accordance with the N.C. Department of Environment and Natural Resources' Ecosystem Enhancement Program In-Lieu Fee Instrument dated July 28, 2010. Thank you for your interest in the NCEEP. If you have any questions or need additional information, please contact Kelly Williams at (919) 707-8915. Sincerely, James. B, S 117 Asset Management Supervisor cc: Craig Brown, USAGE- Raleigh Rebekah Newton, agent 1652 Mail Service Center, Raleigh, North Carolina 27699-1652 Phone: 919-707-8976 4 Internet: www,nceep.net An Equal Opportunity h Affirmative Action Employer — Made in part from recycled paper North A&DENR w Department of Environment and Natural „ Charles Price Green Meadows, LLC 12601 Plantside Drive Louisville, KY 40299 Project: Brickhaven and Sanford Mines Ecosystem Enhancement Program Donald R. van der Vaart Secretary June 4, 2015 Expiration of Acceptance: December 4, 2015 County: Chatham/Lee The purpose of this letter is to notify you that the North. Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept payment for compensatory mitigation for impacts associated with the above referenced project as indicated in the table below. Please note that this decision does not assure that participation in the NCEEP will be approved by the (permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these agencies to determine if payment to the NCEEP will be approved. You must also comoly with all other state. federal or local government hermits, regulations or authorizations associated. with the vrovosed activity including SL 2009 -337: An Act to Promote the Use of Comnensatory Mitigation Banks as amended by S.L. 2011 -343. This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of the issued 404 Permit/401 Certification/CAMA permit within this time frame, this acceptance will expire. It is the applicant's responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permit(g) an invoice will be issued based on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the In- Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www.nceep.net. Based on the information supplied by you in your request to use the NCEEP, the impacts that may require compensatory mitigation are summarized in the following table. The amount of mitigation required and assigned to NCEEP for this impact is determined by permitting agencies and may exceed the impact amounts shown below. Cut Stream feet - Wetlands (acres) Buffer I Buffer 11 River Basin Location ( ) I (Sq. Ft.) (Sq. FL) Impact Ca a Fear 03030004 GoOId I Cool I Warm � Riparian 2 I Nan- �parian I Coastal Marsh p ! 0 Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. The mitigation will be performed in accordance with the N.C. Department of Environment and Natural Resources' Ecosystem Enhancement Program In -Lieu Fee Instrument dated July 28, 2010. Thank you for your interest in the NCEEP. If you have any questions or need additional information, please contact Kelly Williams at (919) 707 -8915. Sincerely, /0 5C Jame Stanfill 1,-) C -,—N Asset Management Supervisor cc: Craig Brown, USACE- Raleigh Rebekah Newton, agent 1552 Mail Service Center, Raleigh, North Carolina 27699 -1652 Phone. 919 - 707 -8976 t Internet: wuww.nceep.net An Equal Opportunity 1 Affirmative Action Employer— Made in part (torn recycled paper Attachment F GRI White Paper, #6 (dated February 8,' 11 Geosynthetie Institute GRI 475 1.edron Avenue GEE GII 1~'olso �, PA 19033 -1208 USA TEL (6 1 0) 522 -84417 FAX (610) 522 -8441 CAI Cl�l G I White Paper 46 � Unexposed and Exposed Conditions Robert A Koerner, Y. Grace Plsnan and George R. Koerner Gensynthetic Institute 475 Kedron Avenue I ammgmImi'�lf� 1 Phone (610) 522 -8440 P'nx (610) 522 -8441 E rails: robert. koernerg;coe.drexal.edu. grace Irsu n coe.drexel.edu gkm+erner @dca.net Original: June 7, 2005 Geoinembrane Lifetime Prediction: Unexposed and Exposed Conditions LO Introduction Without any hesitation the most frequently asked question we have had over the past thirty years' is "how long will a particular geomembrane last".* The two-part answer to the question, largely depends on whether the geo membrane is covered in a timely manner or left exposed to the site-specific environment. Before starting, however, recognize that the answer to either covered or exposed geornembrane lifetime prediction is neither easy, nor quick, to obtain. Further complicating the answer is the fact that all geomembranes are fort-nulated materials consisting of (at the minimum), (i) the resin from which the name derives, (ii) carbon black or colorants, (iii) short-term, processing stabilizers, and (iv) long-term antioxidants. If the formulation changes (particularly the additives), the predicted lifetime will also change. See Table I for the most cornmon types of geornembranes and their approximatc formulations. Table 1 - Types of commonly used geornembranes and their approximate formulations (based on weight percentage) Type Resin Plasticizer Fillers, HDPE 95-98 0 0 LLDPE 94-96 0 0 fpp 85-98 0 -13 PVC 50-70 25-35 0-110 CSPE 40-60 0 40-50 EPDM 25-30 0 20-40 HDPE high density polyethylene PVC LLDPE = linear low density polyethylene CSPE fpp = flexible polypropylene EPDM Carbon Black Additives 2-3 0.25-1 2-3 0,25-3 2-4 025-2 2-5 2-5 5-10 5-15 20-40 1-5 = polyvinyl, chloride (plasticized) = chlorsulfonated. polyethylene = ethylene propylene diene terpolymer . More recently, the some question has arisen but focused on geotextiles, geogrids, geopipe, turf reinforcernent mats, fibers of GCI.s, etc. This White Paper, however, is focused completely on eomembranes due to [lie tremendous 'time and expense of providing such information for all types of geosynthetics. The possible variations being obvious, one must also address the degradation mechanisms which might occur. They are as follows accompanied by some generalized commentary. 0 Ultraviolet Light - This occurs only when the geosynthetic is exposed; it will be the focus of the second part of this communication. a Oxidation - This occurs in all polymers and is the major mechanism in polyolefins (polyethylene and polypropylene) under all conditions. a Ozone - This occurs in all polymers that are exposed to the environment. The site- specific environment is critical in this regard. a Hydrolysis - This is the primary mechanism in polyesters and polyamides. 0 Chemical - Can occur in all polymers and can vary from writer (least aggressive) to organic solvents (most aggressive). a Radioactivity -"phis is not a factor unless the geomembrane is exposed to radioactive materials of sufficiently high intensity to cause chain. scission., eg., high level radioactive 'waste materials, a Biological - This is generally not a factor unless biologically sensitive additives (such as low molecular weight plasticizers) are included in the formulation. a Stress State — This is a complicating factor which, is site-specific and should be appropriately modeled in the incubation process but, 'for long -term testing, is very difficult and expensive to acheive. a Temperature - Clearly, the higher the temperature the more rapid the degradation of all of the above mechanisms; temperature is critical to lifetime and furthermore is the key to .2- time-tempei*,,itu-re-supei-positioti which is the basis of the laboratory incubation methods which will be followed. 2.0 Lifetime Prediction. Unexposed Conditions Lifetime prediction studies at GRI began at Drexel 'University under U. S, EPA contract from 1991 to 1997 and was continued under GSI consortium funding until ca. 2002. Focus to date has been on HDPE geornernbranes placed beneath solid waste landfills due to its common -use in this particular challenging application. Incubation of the coupons has been in landfill simulation cells (see Figure 1) maintained at 85, 75, 65 and 55'C. The specific conditions, within these cells are oxidation beneath, chemical (water) from above, and the equivalent of 50 in of solid waste mobilizing compressive stress. Results have been forthcoming cover the years insofar as three distinct lifetime stages; see Figure 2. Stage A - Antioxidant Depletion Time Stage B - Induction Time to the Onset of Degradation Stage C - Time to Reach 50% Degradation (i.e., the Halflife) 2.1 Stage A - Antioxidant Depletion Time The dual purposes of antioxidants are to (i) prevent polymer degradation during processing, and (ii) prevent oxidation reactions from taking place during Stage A of service life, respectively. Obviously, there can only be a given amount of antioxidants in any fonnulation, Once the antioxidants are depleted, additional oxygen diffusing into the geomembrane will begin to attack the polymer chains, leading to subsequent stages as shown in Figure 2. The duration of the antioxidant depletion stage depends on both the type and amount of the various antioxidants, i.e., the precise formulation. N 10 -4, mew. ter Load EMM= WFAM M '1010��W 41%,11aw Seomembrane sample under compression Figure 1. Incubation schematic and photograph of multiple cells maintained at various constant temperatures, Q. Insulation \ \ / hew tape {/ Vz , EMM= WFAM M '1010��W 41%,11aw Seomembrane sample under compression Figure 1. Incubation schematic and photograph of multiple cells maintained at various constant temperatures, Q. A = anfioxidant depletion 11me A C a - Induction time 100 C = 50% property degradation ' time (I he *half-flfia") Irne (I 11*h lf-lila"�_ V cc j T55 EL T75 t 0 t 85 t75 f65 f6s Aging Time (" scale) Figure 2. Three individual stages in the aging of most geomembranes. The depiction of antioxidants is the consequence of two processes: (i) chemical reactions with the oxygen diffusing into the geo membrane, and (J) physical loss of antioxidants from the geomembrane, 'The chemical process involves two main ftinctions; the scavenging of free radicals converting them into stable molecules, and the reaction 'with unstable hydroperoxide (ROOFT) forining a more stable, substance. Regarding physical loss, the process involves the distribution of antioxidants in die geomembrane and their volatility and extractability to the site specific environment. Hence, the rate of depletion of antioxidants is related to the type and amount of antioxidants, the service temperature, and the nature of the site-specific environment. See Hsuan and Koerner (1998) for, additional details. 2.2 Stage B - Induction Time to Onset of Degradation In a pure polyolefin resin, ie,, one without carbon black and antioxidants, oxidation occurs extremely slowly at the beginning, often at an immeasurable rate. Eventually, oxidation occurs more rapidly. The reaction eventually decelerates and once again becomes very slow, IRS This progression is illustrated by the S-shaped curve of Figure 3(a), The initial portion of the curve (before measurable degradation takes place) is called the induction period (or induction time) of the polymer. In the induction period, the polymer reacts with oxygen forming hydroperoxide (ROOH), as indicated in Equations (1)-(3), However, the amount of ROOH in this stage is very small and the hydroperoxide does not further decompose into other free radicals which inhibits the onset of the acceleration stage. In a stabilized polymer such as one with antioxidants, the accelerated oxidation stage takes an even longer time to be reached. The antioxidants create an additional depletion time stage prior to the onset of the induction time, as shown in Figure 3(1.x). R d Induction period Acceleration tl period Deceleration period (a) Pure unstabilized polyethylene Antioxidant Induction I Acceleration I Deceleration depletion time I period period period, _01a -.04 13— Aging Time (b) Stabilized polyethylene Figure 3. Curves illustrating various stages of oxidation. -6- RH--->R@+H a (1) (aided by energy or catalyst residues in the polymer) R - + 02 —> ROO o (2) ROO * + RH —> ROOH + R a (3) In the above, RH represents the polyethylene polymer chains, and the symbol "a" represents free radicals, which are highly reactive molecules. 2.3 Stage C - Time to Reach 50% Degradation (Halflife) As oxidation Qontinues, additional ROOH molecules are being formed. Once the concentration of ROOH reaches a critical level, decomposition of ROOH begins, leading to a substantial increase in the amount, of free radicals, as indicated in Equations (4) to (6,). The additional free radicals rapidly attack other polyrner chains, resulting in an accelerated chain reaction, signifying the end of the induction period,, Rapopport and Zalkov (1986). This indicates that the concentration of ROOH has a critical control on the duration of the induction period. ROOT) -4 RO a OH * (aided by energy) (4) RO * + RH —> :ROH + R * (5) 01-1 a + RH --> H20 + R o (6) A series of oxidation reactions produces a, substantial amount of free radical polymer chains (Re), called alkyl radicals, which can proceed to further reactions leading to either cross-linking or chain scission in the polymer. As the degradation of polymer continues, the physical and mechanical properties of the polymer start to change. The most noticeable change in physical properties is the melt index, since it relates to the molecular weight of the polymer. As for mechanical properties, both tensile break stress (strength) and break strain (elongation) decrease. -7- Ultimately, the degradation becomes so severe that all tensile properties start to change (tear, puncture, burst, etc.) and the engineering performance is jeopardized. This signifies the end of the, so-called "service life" of the geomembrane. Although quite arbitrary, the limit of service life of polymeric materials is often selected, as a 50% reduction in a specific design property. niis is commonly referred to as the halflife time, or simply the "halflife". It should be noted that even at halflife, the material still exists and can function, albeit at a decreased performance level with a factor-of-safety lower than the initial design value. 2.4 Summary of Lifetime Research -to- Date Stage A, that of antioxidant depletion for HDPE geomembranes as required in the GRI- GM 13 Specification, has been well established by our own research and corroborated by others, e.g., Sangram and Rowe (2004). The GRI data for standard and high pressure Oxidative Induction Time �OIT) is given in Table 2. The values are quite close to one another. Also, as expected, the lifetime is strongly dependent on the service temperature; with the higher the temperature the shorter the lifetime. Table 2 - Lifetime prediction of HDPE (nonexposed) at various field temperatures In Service Stage "A" (years) Stage "B" Stage "C' Total Temperature Standard High Press. Average Prediction* ('11) OIT OIT OIT (years) (years) (years) 20 200 215 208 30 208 446 25 135 144 140 25 100 265 30 95 98 97 20 49 166 35 65 67 66 15 25 106 40 45 47 y 46 10 13 69 *Total — Stage A (average) + Stage B + Stage C Stage "B", that of induction time, has been obtained by comparing 30-year old polyethylene water and milk containers (containing no tong-term antioxidants) with currently M produced containers, The data shows that degradation is just beginning to occur as evidenced by slight changes in break strength and elongation, but not in yield strength and elongation. The lifetime for this stage is also given in Table 2, Stage "C", the time for 50% change of mechanical properties is given in Table 2 as well. The data depends on the activation energy, or slope of the Arrhenius curve, which is very sensitive to material and experimental techniques. The data is from Gedde, et al, (1994) which is typical of the HDPE resin used for gas pipelines and is similar to Martin and Gardner (1983). Summarizing Stages A, B, and C, it is seen in Table 2 that the halflife of covered HDPE geon-icnibranes (formulated according to the current GRI-GM13 Specification) is estimated to be 449-years at 20'C. This, of course, brings into question the actual temperature for a covered geomembrane such as beneath a solid waste landfill. Figure 4 presents multiple thermocouple monitoring data of a municipal waste landfill 11-ner in Pennsylvania for over 10-years, Koerner and Koerner (2005), Note that for 6-years the temperature was approxii-nately 20'C. At that time and for the subsequent 4-years the temperature increased to approximately 30'C. Thus, the halflife of this geomembrane is predicted to be from 166 to 446 years within this temperature range. The site is still being monitored, see Koerner and Koerner (2005). In Dry Cell Liner Temperatures 40 35 30 25 m 20 L rE 15 L CL 10 H 5 0 0 1000 I 1 I 1 4 2000 3000 4000 5000 8000 Lapsed Time days) Figure 4. Long -term monitoring of an HDPE liner beneath a municipal solid waste landfill in Pennsylvania. 2.5 Lifetime of Other Covered Geomembranes By virtue of its widespread use as liners for solid waste landfills, HDPE is by far the widest studied type of geomembrane. Note that in most countries (other than the U.S.), HDPE is the required geomembrane type for solid waste containment. Some commentary on other -than HDPE geomembranes (recall. Table 1) follows: 2.5.1 Linear Low Density Polyethylene (LLDPE) geomembranes The nature of the LLDPE resin and its formulation is very similar to HDPE. The fundamental difference is that LLDPE is a lower density, hence lower crystallinity, than HDPE; e.g., 10% versus 50 %. This has the effect of allowing oxygen to diffuse into the polymer structure quicker, and likely decreases Stages A and C. How much is uncertain since no data is available, but it is felt that the lifetime of LLDPE will be somewhat reduced with respect to HDPE, -10- 2.5.2 Plasticizer inigTation in PVC geornembranes Since PVC geomembranes necessarily have plasticizers in their f"bri-nulations so as to provide flexibility, the migration behavior must be addressed for this material. In PVC the plasticizer bonds to the resin and the Ai-en gth of this bonding versus liquid-to-resin bonding is significant. One of the key parameters of a stable long-lasting plasticizer is its molecular weight. The higher the molecular weight of the plasticizer in a PVC formulation, the more durable will be the material. Conversely, low molecular weight plasticizers have resulted in field failures even under covered conditions. See Miller, et al. (1991), Hammon, et al. . (1993), and Giroud and Tisinger (1994) for more detail in this regard, At present there is a considerable difference (and cost) between PVC geornernbranes made in North America versus Europe. This will be apparent in the exposed study of durability in the second part of this )White Paper. 2.5.3 Crosslinking in EPDM and CSPE geomernbriiaes The EPDM geomernbranes mentioned in Table I are crosslinked thermoset materials. The oxidation degradation of EPDM takes place in either ethylene or propylene fraction of the co-polymer via free radical reactions, as expressed in Figure 5, which are described similarly by Equations (4) to (6). EPDM ROOH---o -OH RO& + EPDM + EPDM Figure 5. Oxidative degradation of crosslinked EPDM geomembranes, (Wang and Qu, 2003). For CSPEgeome-mbranes, the degradation inechanisin is dehydrochlorination by losing chlorine and generating carbon-carbon double bonds in the main polymer chain, as shown in Figure 6. -I]- The carbon-carbon double bonds become the preferred site for further then-nodegradation or cross-linking in the polymer, leading to eventual brittleness of the geomenibrane. I I ut bu2cl W IwCH2—CH2� CH =CH I—, CH,—CH�,— +HCI Y 1 S020 Figure 6. Dechlorination degradation of crosslinked CSPE geomembranes (Chailan, et al., 1995). Neither EPDM nor CSPE has had a focused laboratory study of the type described for HDPE reported in the open literature. Most of lifetime data for these gcomembrancs is antidotal by virtue of actual field performance. Under covered conditions, as being considered in this section, there have been no reported failures by either of these thermoset polymers to our knowledge. 3.0 Lifetime Prediction-, Exnosed Conditions Lifi time prediction of exposed geomembrancs have taken two very different pathways; (i) prediction from anecdotal feedback and field performance, and (ii) from laboratory weathering device predictions. WE= There is a large body of anecdotal information available on field feedback of exposed geomembranes. It comes form two quite different sources, i.e., dams in Europe and flat roofs in the USA. Regarding exposed geomembranes in dams in Europe, the original trials were using 2.0 mm thick polyisobutylene bonded directly to the face of the dai-n. There were numerous problerns encountered as described by Scuero (1990). Similar experiences followed using PVC Ili geornernbranes. In 1980, a geoconiposite was first used at Lago Nero whicli had a 2,00 g/m2 nonwoven geotextile bonded to the PVC geomernbrane. This proved quite successftil and led to the now-accepted strategy of requiring drainage behind the geomembranc. In addition to thick nonwoven geotextiles, geonets, and goonet composites have been successful. Currently over 50 concrete and masonry dams have been rehabilitated in this manner and are proving successful for over 3fl -years of service life. The particular type of PVC plasticized geomernbranes used for these dams is proving to be quite durable. Tests by the dam owners on residual properties show only norninal changes in properties, Cazzuffi (1998). As indicated in Miller, et a]. (1991) and Hammond, et al. (1993), however, different PVC materials and formulations result in very different behavior; the choice of plasticizer and the material's thickness both being of paramount importance. An excellent overview of field performance is recently available in which 2,50 darns which have been waterproofed by geomernbrancs is available from ]COLD (2010). Regarding exposed geomembranes in flat roofs, past practice in the USA is almost all with EPDM and C'SPE and, more recently, with fPP, Manufacturers of thosc geornembranes regularly warranty their products for 20-years and such warrants appear to be justified. EPDM and CSPE, being thermoset or elastorneric polymers, can be used in dams without the necessity of having scams by using vertical attachments spaced at 2 to 4 m centers, see Scuero and Vaschetti (1996). Conversely, fPP can be seamed by a number of thermal fusion methods. All of these geomembrane types have good conformability to rough substrates as is typical of concrete and masonry dam rehabilitation. It appears as though experiences (both positive and negative) with geo-membranes in flat roofs, should be transferred to all types of waterproofing in civil engineering applications. M 3.2 Laboratory Wcatherometer Predictions For an accelerated situ iulation of direct ultraviolet light, high temperature, and moisture using a laboratory weatherometer one usually considers a worst-case situation which is the solar maximum condition, This condition consists, of global, noon sunlight,, on the summer solstice, at normal incidence. ft should be recognized that the UV-A range is the target spectrum for a laboratory device to simulate the naturally occurring phenomenon, see Hsuan and Koerner (1993), and Suits and Hsuan (2001). The Xenon Arc weathering device (ASTM 1 4355) was introduced in Germany in 1954. There are two important features; the type of filters and the irradiance settings. Using a quartz inner and borosilicate outer filter (quartz/boro) results in excessive low frequency wavelength degradation, The more common borosilicate inner and outer filters (boro/boro) shows a good correlation with solar maximum conditions, although there is an excess of energy below 300 nin wavelength. Irradiance settings are important adjustments in shifting the response although they do not eliminate the portion. of the spectrum below 300 mn frequency. Nevertheless, the Xenon Arc device is commonly used method for exposed lifetime prediction of all types of geosynthetics. UV Fluorescent devices (ASTM D7238) are an alternative type of accelerated laboratory test device which, became available in the early 1970's. They reproduce the ultraviolet portion of the sunlight spectrum but not the full spectrum as in Xenon Are weatherometers. Earlier FS 40 and UVB-313 lamps give reasonable short wavelength output in comparison to solar maximum. The UVA-340 lamp was introduced in 1 987 , and its response is seen to reproduce ultraviolet light quite well. This device (as well as other types of weatherometers) can handle elevated temperature and programmed moisture on the test specimens. so Research at the Geosynthetic Institute: (G I') has actively pursued both. Xenon and UV Fluorescent devices on a wide range of geomembranes. Table 3 gives the geomembranes that were incubated and the number of hours of exposure as of 12 July 2005. Table 5 - Details of the G laboratory exposed w,eatherometer study on various types of geomernbranes Geomernbrane Thickness UV Fluorescent Xenon Type (111m) Exposure* Exposure* L HDPE (GM 13) 1.50 800,0 hrs. 6600 lags. 2. LLDPE (GIVII 7) 1.00 8000 6600 3. PVC (No. Amer.) 0.75 8000 6600 4. PVC (Europe) 2.50 7500 6600 5. fPP (BuRec) I .00 2745** 4416" 6, fPP-R (Texas) 0.191 100 100 7. fPP (No. Amer.) 1.00 7500 6600 *As of 12 July 200,5 exposure is ongoing "Light time to reach halflife of break and elongation 3.3 Laboratory Weatherometer Acceleration Factors Comment Basis of GRI-Gill 13 Spec Basis of GR1-GM- 17 Spec Low Mot. Wt. Plasticizer High Mot, Wt. Plasticizer Field Failure at 26 mos. Field Failure at 8 years Expected Good Performance The key to validation of any laboratory study is to correlate results to actual field performance. For the nonexposed geomernbranes of Section 2 such correlations will take hundreds of years for properly formulated products, For the exposed geomembranes, of Section 3, however, the lifetimes are significantly shorter and such correlations are possible. In particular, Geomembrane #5 (flexible polypropylene) of Table 3 was an ,admittedly poor geornembrane formulation which failed in 26 months of exposure at El Paso, Texas, USA. The reporting of this failure is available in the literature, Comer, et al. (1998). Note that for both UV Fluorescent and Xenon Arc laboratory incubation of this material, failure (halflife to 50% reduction in strength and elongation) occurred at 2745 and 4416, hours, respectively. The comparative analysis of laboratory and field for this case history allows for the obtaining of acceleration factors for the two incubation devices. -15- 33.1 Cornparison'between field and UV Fluorescent weathering The light source used in the UV fluorescent weathering device is UVA with 'wavelengths from 295-400 nm. In addition, the intensity of the radiation is controlled by the Solar Eye irradiance control system. The UV energy output throughout the test is 68.25 W/-m2, The time of exposure to reach 50% elongation at break was as follows: = 2745 hr. of light = 9,882,000 seconds Total energy in MJ/rn2 = 68.25 W/m2 x 9,882,000 = 6 74.4 M. /M2 The field site was located at El Paso, "Texas. The UVA radiation energy (295-400 mn) at this site is estimated based on data collected by the South Florida Testing Lab in Arizona (which is a similar atmospheric location). For 26 months of exposure, the accumulated UV radiation energy is 724 Mj/M2 which is very close to that generated from the LJV fluorescent weatherometer. "Merefore, direct comparison of the exposure time between field and UV fluorescent is acceptable. Field time vs. Fluorescent LJV light time: Thus, the acceleradon factor is 6.8. 26 Months = 3.8 Months 3.3.2 Comparison between field and Xenon Arc weathering The light source of the Xenon Are weathering device simulates almost the entire sunlight spectrum frorn 250 to 800 nm. Depending of the age of the light source and filter, the solar energy ranges from 340.2 to 695.4' /m2, with the average value being 517.8 W/M2. The time of exposure to reach 50% elongation at break 4416 hr. of light 15,897,600 seconds Total energy in Mj/1-n2 = 517.8 W/rn' x 15,897,600 = 9232 MJ/m2 -16- The solar energy in the field is again estimated based on data collected by the South 'Florida Testing Lab in Arizona. For 26 months of exposure, the accumulated solar energy (295-800 nm) is 15,800 MI/M2, which is much higher than that from the UV Fluorescent device. Therefore, direct comparison of halflives obtained from the field and Xenon Arc device is not anticipated to be very accurate. However, for illustration purposes the acceleration factor based Oil Xenon Are device would be as follows,: Field vs, Xenon Are : Thus, the acceleration factor is 4.3. = 26 Months = 6.1 Months The ravulting conch4vion qj' this coinparison q/' weathering devices is that the UV Fluorescent device is certain v reasonable to rase for long-terin incubations. When considering the low cost qI'the device, its low maintenance, its inexpensive buths, and ease oftepair it (the UV Iquorescent device) ivill be used exclusively v GSI.f6r long-term incubation starches. 33.3 Update of exposed lifetime predictions There are presently (2011) four field failures of flexible polyprol-,iylene geornernbranes and using unexposed archived samples from these sites their responses in laboratory UV Fluorescent devices per AST'M 1 7328 at 70 °C are shown in Figure 5. From. this information we deduce that the average correlation factor is approximately 1.200 light hours — ones ))ear in a heat clirnale. This value will be used accordingly for other geomembranes. M IM11FAM= 120 F- i fP'P-R2 (OM mm) ME, 80 A fPP-R3 (0.91 mm) 60 . ....... . ...... . . . 20 0 -20 0 2000 4000 6000 80DO 10000 12000 14000 16000 Light Hours (b), Two Sites in So. Calif Figure 5. Four field failures of fPP and fPP-R exposed geomembranes. -18- Lab-to-Field Correlation Factors (AS "M D723,8 @ 70-C) iod Thickness Field Location Lab Factor (mm) (Yrs.) (It. hr.) (It. bars. /1.0 yr.) -1 LOO —2 W. exas 1800 900 RI 1.14 —8 W. Texas 8200 1025 R—) 0.91 —2 So, Calif, 2500 1250 R3 0.91 —8 So. Calif 11200 1400 1140* WO It. hr. = 1.0 year in hot climates Figure 5. Four field failures of fPP and fPP-R exposed geomembranes. -18- Exposure of a number of different types of geomembranes, in laboratory UV Fluorescent devices per ASTM D7238 at 70'C has been ongoing for the six years (between 2005 and 2011) since this White Paper was first released. Included arc the following geomembranes: e Two black 1.0 mm (4,0 mil) unreinforced flexible polypropylene geomernbranes formulated per GRI-GM 18 Specification; see Figure 6a. a Two black unreinforced polyethylene geomembranes, one 1.5 mrn (60 mil) high density per GRI-CTM 13 Specification and the other 1.0 mm, (40 mil) linear low density per GRI- GM 17 Specification; see Figure 6b. 0 One 1.0 (40 mil) black ethylene polypropylene diene terpolymer geomembrane per GRI- GM21 Specification; see Figure 6c. a Two polyvinyl chloride geomembranes, one black 1.0 mm (40 mil) formulated in North America and the other grey 1.5 min (60 mil) 1'b nnulated in Europe; see Figure 6d. Ur 140 a S 120 IL 1 Q sw ao I—*— PP-2 per GM 18 at 70C 60 i . M-1- fPP-3 per GM 18 at 70C . . . . ... . ........ . w 40 20 .... . ......... IL 0 0 1000,0 20000 30000 40000 50000 Light Hours, Figure 6a. Flexible polyethylene (fPP) geomembrane behavior. -'19- 0 10000 20000 30000 40000 50000 Light Hours Light Hours HDPE (1.50 mm per GMI 3) at 70C LLDPE-1 (1,00mm per GMI 7) at 70C --*--HDPE (1.50 mm per GM1 3) at 70C --a -, LLDPE-1(1.00mm per GM17') at 70C Figure 6b. Polyedlylene (HDPE and LLDPE) geomernbranc, behavior. -2o- rr X 10000 20000 30000 Light Hours Exposure Figure 6c. Ethylene polypropylene diene terpolymer (EPDM) g,eo,membrane. m From the response curves of the various geomembranes shown in Figure 6a-d, the 50% reduction value in strength or elongation (usually elongation) was taken a's being the "halflife". This value is customarily used by the polymer industry as being the materials lifetime prediction value. We have done likewise to develop Table 6 which is our predicted values for the designated exposed geomembrane lifetimes, to date. Table 6 — Exposed lifetime prediction results of selected geornembranes to date Type HDPE LLDPE EPDM fPP-2 fPP-3 ?VC-N.A. PVC-Eur. Specification GRI-GM]3 GRI-GM 17 GRI-GM21 GRI-GM 18 GRI-GMIS (see FGI) proprietary Prediction Lifetime in a Dry and Arid Climate > 36 years (ongoing) — 36, years (halflife) > 27 years ('Ongoing) — 30 years (halflife) > 27 years (ongoing) — 18 years (halflife) > 32 years (ongoing) 4.0 Conclusions and Recommendations This White Paper is bifurcated into two very different palls; covered (or buried) lifetime prediction of HDPE geomembranes and exposed (to the atmosphere) lifetime prediction of a number of geornermbrane types. In the covered geomembrane study we chose the geomembrane type which has had the majority of usage, that being HDPE as typically used in waste containment applications. Invariably whether used in landfill liner or cover applications the geomeynbrane is covered, After ten-years of research Table 2 (repeated here) was developed which is the conclusion of the covered geomernbrane research program. Here it is seen that HDPE decreases its predicted lifetime (as measured by its halflife) from 446-years at 20'C, to 69-years at 40'C, Other geornembrane types (LLDPE, fPP, EPDM and PVC) have had -22- essentially no focused effort on their covered lifetime prediction of the type described herein. "That said, all are candidates for additional research in this regard. Table 2 - lifetime prediction of HDPE (nonexposed) at various field temperatures In Service Stage "C" Stage "A" (years) Temperature Standard I High Press. Average (OC) OIT OIT IT 20 200 215 208 25 135 1,44 1,40 30 95 98 97 35 65 67 66 40 45 47 46 *Total = Stage A (average) + Stage B + Stage C Stage "B" Stage "C" Total Prediction* (years) (years) (years) 30 208 446 25 1,00 265 20 49 166 15 25 106 10 13 69 E.-rposeii geomembrane ItOetinie was addressed from the perspective of field performance which is very unequivocal. Experience in Europe, mainly with relatively thick PVC containing high molecular weight plasticizers, has given 25-years of service and the geomembranes are still in use. Experience in the USA with exposed geomembranes on flat roofs, mainly with EPDM and CSPE, has given 20"-years of service, The newest geomembrane type in such applications is fPP which currently carries similar warranties. Rather than using the intricate laboratory setups of Fig-ure 1 which are necessary for covered geomembranes, exposed geomembrane lifetime can be addressed by using accelerating laboratory weathering devices. Here it was shown that the UV fluorescent device (per ASTM D7238 settings) versus the Xenon Arc device (per ASTM D 4355) is equally if not slightly more intense in its degradation capabilities, As a result, all further incubation has been using the UV fluorescent devices per D7238 at 7I1 °C. Archived flexible polypropylene geomembranes at four field 'failure sites resulted in a correlation factor of 1200 light hours equaling one -year performance in a hot climate. Using this '91- value on the incubation behavior of seven commonly used geomembranes has resulted in the following conclusions (recall Figure 6 and Table 6) a FIDPE geomembranes (per GPI-GM13) are predicted to have lifictimes greater than 36- years; testing is ongoing. • LLDP,E geomembranes (per GRI-GM17) are predicted, to have lifetimes of approximately 36-years. • EPDM geomembranes (per GRI-GM21) are predicted to have lifetimes of greater than 27-years; testing is ongoing. • fPP geomembranes (per GRI-GMI 8) are predicted to have lifetimes of approximately 30- am 0 PVC geomembranes are very dependent on their plascitizer types and amounts, and probably thicknesses as well. The North American formulation has a lifetime of approximately I 8-years, while the European formulation is still ongoing after 32-years. Regarding continued and future recommendations with respect to lifetime prediction, G is currently providing the following: (i) Continuing the exposed lifetime incubations of HDPE, EPDM and PVC (European) gcomembranes at 70'0. (ii) Beginning the exposed lifetime incubations of HDPE, LLDPE, WP, EPDM and both P'VC's at 601C and 80'C incubations. (iii)With data from these three incubation temperatures (60, 70 and 80'C), time- temperature- superposition plots followed by Arrhenius modeling will eventually provide information such as Table 2 for covered geomembranes., This is our ultimate goal. no (iv) Parallel lifetime studies are ongoing at GSI for four types of geogrids and three types of turf reinforcement mats at 60, 70 and 801C, ('v) G does not plan to duplicate the covered geomembrane study to other than the HDPE provided herein. In this regard, the time and expense that would be necessary is prohibitive. (vi)The above said, GS1 is always interested in field lifetime behavior of geomembranes (and other geosynthetics as well) whether covered or exposed, Acknowledacments The financial assistance of the U. S. Environmental Protection Agency for the covered HDPE lifetime study and the member organizations of the Geosynthetic Institute and its related institutes for research, information, education, accreditation and certification is sincerely appreciated. Their identification and contact member, inforniation is available on the Institute's web site at <<gcosyiitlietic-instituteorg>>, References Cazzuffl, D., "Long-Term Performance of Exposed Gcomembranes on Dams in the Italian Alps,"' Proc. 6 ch Intl. Conf. on Geosynthetics, IFAI, 1998, pp. 1107 -1114W Chailan, J.-F,, Boiteux, C., Chauchard, J'., Pinel, B. and Seytre, G., "Effect of Thermal Degradation on the Viscoelastic and Dielectric Properties of Chlorostilfonated Polyethylene (CSPE) Compounds," Journal of Polymer Degradation and Stability, Vol. 48, 1995, pp. 61- 65. Comer, A. I., Hsuaji, Y. G. and Konrath, L., "The Performance of Flexible Polypropylene Geomembranes in Covered and Exposed Environments," 6"" International Conference on Geosynthetics, Atlanta, Georgia, USA, March, 1999, pp. 359-364. Gedde, U. W., Viebke, J., Leijstrom, H. and If arson, M.., "Long-Term Properties of flot-Water Polyalefin Pipes - A Review," Polymer Erigineering and Science, Vol, 34, No. 24, 1994, pp, 1773-1787. Giroud, J.-P. and Tisinger, L. G., "The Influence of Plasticizers on the Perfon-nance of PVC Geoniernbranes," PVC GRI- 17 Conference, IFAI, Roseville, N4N, 1994, pp. 169-196. Hammon, K, Hsuan, G., Levin, S. B. and Mackey, R. E., "The Re-examination of a Nine-Year- Old PVC Geomembrane Used in a Top Cap Application," `11" Annual SWANA Conference, San Jose, CA, 1.993, pp. 93-108. -25- lisuan, Y. G. and Guan, Z., "Evaluation of the Oxidation Behavior of Polyethylene Geomembranes Using Oxidative Induction Time Tests," ASTM STP 1326, Riga and Patterson, Eds., ASTM, 1997, pp. 138-149. Hsuan, Y, G. and Koerner, R. M., "Can. Outdoor Degradation be Predicted by Laboratory Acceleration Weathering?," GFR, November, 1993, pp. 12-16. Hsuan, Y. G. and Koerner, R. M,, "Antioxidant Depiction Lifetime in High Density Polyethylene Geomembranes," Jour. Geotech. and Geoenviro.n. En r., ASCE, Vol., 124, No. , 1998, pp. 532-54,1. ICOLD (2010), "Geomembrane Seating Systems for Dams: Design Principles and Return of Experience,," Intl. Committee on Large Dams, Bulletin, 135, Paris, France., Koerner, G. R. and Koe!mer. R. M., "In-Situ Temperature 'Mon itoring of Geomembranes," Proc. GRI-I 8 Conf. at GeoFrontiers, Austin, TX, 2005, 6 pgs. Martin, J. R. and Gardner, R, J. (1983), "Use of Plastics in Corrosion Resistant Instrumentation," 1983 Plastics Seminar, NACE, October 2,4-27. Miller, L. V., Koerner, R. M., Dewyea, J. and Mackey, R. E., "Evaluation of a 30 mil PVC Liner and Leachate Collection System," Proc. 29"' Annual GRCDAJSWANA Conf, Cincinnati, 01-1,1991. Mijeller, W. and Jakob, I., "'Oxidative Resistance of High-Density Polyethylene Geomenibranes," Jour, Polymer Degradation and Stability," Elsevier Publ. Co,, No. 79, 2003, pp. 161-172. Rapoport, N. Y. and Zaikov, G. E., "Kinetics and Mechanisms of the Oxidation of Stressed Polymer," Developments in Polymer Stabilization-4, G. Scott, Ed., Applied Science Publishers Ltd., London, U.K., 1986, pp. 207-258. Sangam, H. P. and Rowe, R. K., "Effects of Exposure Conditions on the Depletion of Antioxidants from HDPE Geomernbranes", Canadian Geotechnical Journal, Vol. 39, 2002, pp� 1221-1230. Scuero, A., "The Use ot'Geocomposites for the Rehabilitation of Concrete Danis," Proc. d' Intl. Conf. on Geosynthetics, The Hague, Balkerna Publ. Co., 1990, pg. 474. Scuero, A. M. and Vaselie,tti, G. L., "Geomembranes for Masonry and Concrete Dams: State-of- the-Art Report,"' Proc. Geosynthetics Applications, Design and Construction, M. B. deGroot, et al., Eds., A. A. Balkerna, 1996, pp. 889-898. Suits, L. D. and I-Isuan, Y. G., "'Assessing the Photo Degradation of Geosyntheties by Outdoor Exposure and Laboratory Weatherometers," Proc. GRI-15 Conference, Hot Topics in ,Geosynthetics II, Gil Publ., Folsom, PA, 2001, pp.. 67 -279. Wang, W. and Qu, B., "Photo and Thermo- Oxidative Degradation of Photoerosslinked Ethylene- Propylene-Diene Terpolymer," Journal of Polymer Degradation and Stability, Vol. 81, 2003, pp.531-537. M Attachment G Qualitative Analysis Relevant to Socioeconomics and Environmental Justice Issues for the Colon Mine and Brickhaven Mine Reclamation Projects (dated Ma , 2015) ' """'g �L-�E41CH REPORT ON mcmgm��� QUALITATIVE ANALYSIS RELEVANT TO SOCIOECONOMICS AND ENVIRONMENTAL JUSTICE ISSUES FOR THE COLON MINE AND BRICKHAVEN MINE RECLAMATION PROJECTS by Haley & Aldrich, Inc. Bedford, New Hampshire for Charah, Inc. File No. 41844-022 June 2015 ff., 1 1.1 RT * 0i 1119 4'Z k �m List of Tables iii List of Figures iv 1. Introduction 1 2. Socioeconomic Ana,lysis 2 8 2.1 STUDY AREA: COLON MINE LOCATION 2 21.1 Transportation of CCPs 2 2.1.2 Existing Disamenities 3 2.1.3 Population and Demographics 3 2.1.4 Employment and Median Household Income 4 12 STUDY AREA: BRICKHAVEN MINE LOCATION 4 2.2.1 Transportation of CCP,5 5 2.2.2 Existing Disamenitles 5 2.2.3 Population and Demographics 6 2.2.4 E mployme nt a nd Median Household I ncome 6 23 MARKET AND NOWMARKET BENEFITS ASSOQATED WITH RECLAMATION 6 3. Property Value Impacts 9 4. Environmental Justice Analysis 11 4,1 MINORITY POPULATION ANALYSIS 11 41.1 Colon Mine 11 41.2 Brickhaven Mine 12 4.2 POVERTY LEVEL ANALYSIS 12 42.1 Colon Mine 12 4.2.2 Brickhaven Mine 12 4.3 SENSITIVE RECEPTORS 12 4.4 SUMMARY OF POTENTIAL ADVERSE ENVIRONMENTAL AND HUMAN HEALTH EFFECTS AND ANALYSIS OF THE POTENTIAL FOR DISPROPORTIONATELY HIGH AND ADVERSE EFFECTS 13 4,4.1 Increased truck and rail traffic impacts 13 4.4.2 Potential releases of CCPs to the environment 13 5. Conclusions 16 6. References 18 8 Page Tables Figures X, Mr.%?= Table No. Title Demographic Statistics for Census Tracts in the Vicinity of the Colon Mine Employment Statistics for Census Tracts in the Vicinity of the Colon M ine Income Statistics for Census Tracts in the Vicinity of the Colon Mine 4 Demographic Statistics for Census Tracts in the Vicinity of the Brickhaven M ine 5 Employment Statistics for Census Tracts in the Vicinity of the Brickhaven Mine 6 Income Statistics for Census Tracts in the Vicinity of the Brickhaven Mine 7 Race and Ethnicity Data for Census Block Groups within a 5-Mile Radius of the Bricichaven and Colon Facilities Poverty Data for Census block Groups within a 5-Mile Radius of the BrIckhaven and, Colon Mines 9 Summary of Census Block Groups and Potential Environmental Justice Communities within a 5-Mile Radius of the Brickhaven and Colon Facilities HAkRICH' List of Figures Figure No. Title 1 Location of Brownfields within Lee County 2A Abandoned General Shale Plant Site 2B C&D Debris Remaining On-Site 3 Census Tracts within a 5-Mile Radius of the Colon Mine 4A Wood Products Manufacturing Plant 4B Truck/Rail Traffic along Corinth Road 5 Census Tracts within a 5-Mile Radius of the Brickhaven Mine 6 Census Block Groups within a 5-Mile Radius, of the Colon Mine 7 Census Block Groups within a 5-Mile Radius of the Brickhaven Mine 8 Sensitive Receptors within a 5-Mile Radius of the Colon Mine 9 Sensitive Receptors within a 5-Mile Radius of the Brickhaven Mine 10 North Carolina Rail System 11 Railroads and Stations in the Vicinity of the Colon and Brickhaven Mines iv VINEEK =1. MTO oMt Green Meadow LLC and Charah, Inc. (Charah) have submitted an application to obtain permits to construct structural fill projects at the Brickhaven No,2 Mine Tract "A" in Chatham County, North Carolina, and at the Colon Mine Site in Lee County, North Carolina. As described in the Permit Application, coal ash, or coal combustion products (CCP), will be used as structural fill to close the open- pit clay mines and return the land to beneficial re-use for industrial or other purposes. The Brickhaven and Colon projects are fully regulated by the North Carolina Department of Environment and Natural Resources (DENR) under the North Carolina Coal Ash Management Act of 2014 (CAMA14) (codified at North: Carolina General Statues (NC GS) 130A Subpart 3, Use of Coal Combustion Products as Structural Fill), Including a rigorous permit application submission, review, and approval process, under the DENR Division of Energy, Mineral and Land Resources.. The structural fill projects have been designed to fully comply with these regulations. The base liner at each site will use a composite liner design which will consist of three components, a geomembrane liner installed above and in uniform contact with a geosynthetic clay liner, which overlies a compacted clay liner, The general leachate management system includes the collection, storage, treatment, and disposal of the leachate generated. A cover will then be placed over the structural fill which will consist of a six foot thick system of layers for the top slopes and a four foot thick system of layers for the sideslopes. A storm water drainage system and high density polyethylene (HDPE) geomembrane will be integrated into the cover to prevent storm water contact wiith structural fill and to prevent migration of dust from structural MI. Thus, the installation of a three component liner system, the employment of the leachate collection system, and the installation of the cover system will effectively sequester the CCPs from the surrounding environment. As part of the permit review process, the Army Corps of Engineers (ACOE) has provided: comments on the permits, The purpose of this report is to address two of those comments, provided below. Comment 12: The Chatham County petition further states that the "Transport and storage of Coal Ash would adversely affect the economics of the community/county." Numerous other comments received at our office, from both Chatham and Lee Counties, expressed similar concerns. In addition, several commenters; are concerned that the proximity of their properties to the mine sites will result In a devaluation of their properties. In light of these concerns, please address how the transport and storage of coal ash will affect the economies of the host communities/counties, including property values near the mines and within the two counties. Comment 14: As you may be aware, in accordance with Executive Order 12898, we are responsible for identifying and addressing disproportionately high and adverse human health or environmental effects on minority and low-income populations. Based on an initial review of available census data of the potentially affected communities, we have determined that there is potentially a disproportionate impact to a local minority population. We will need to continue to evaluate this issue during permitting review process. This report provides a detailed demographic analysis relevant to socioeconomics and environmental justice and a qualitative evaluation of potential impacts. 1 11111RERICH This study examined the socioeconomic factors present in a five-mile radius surrounding the Colon and Brickhaven mine sites. This five-mile radius is defined as the study area and encompasses the geographical areas, potentially impacted by the projects. Demographic data was taken from the United States (U.S.) Census American Community Survey. The American Community Survey is an ongoing survey that provides community data every year at the state, county, census tract, census block group, and census block levels. For some of the demographic data, five-year averages were used while other demographic data relied on single year estimates. The Colon mine is located in Lee County at 1600 Colon Road, approximately five miles northeast of the city of Sanford, NC. The site is a former General Shale Brick Inc, clay mine that was originally permitted in 1972, and although still permitted as an active mine, the operations went dormant due to lack of demand for brick in 2008. The permit was transferred to Green Meadow LLC in early 2015. Tice site is bordered by a mix of wooded, agricultural and rural residential properties. The mine is not visible from right -of -ways within: the county. The five-mile area surrounding the mine site is characterized by densely forested areas, numerous industrial and manufacturing facilities, and farmland interspersed with rural residential housing., A portion of the residential and commercial areas in the city of Sanford are within the five-mile radius of the mine. South and west of the Colon mine are industrial and manufacturing areas. This area is also characterized by older buildings and structures (some abandoned), demolished building sites, and cleared land with some rural residential housing. Some of the larger industries/companies within five miles of the Colon mine Include: 0 Lee Brick & Tile plant 0 Pfizer Pharmaceutical manufacturing plant 6 Heritage Concrete 0 Romatic Manufacturing a Lee Iron & Metal Co. scrap yard 2.1.1 Transportation of CCPs CCPs will be transported by rail after the completion of a rail! spur to connect to the existing rail line that runs directly south of the mine site. There are two major (Class I1) freight railroad companies that operate in North Carolina —CSC( Transportation (CSXT) and Norfolk Southern (NS). Both CSXT and NS have freight rail lines that run just south of the Colon mine site (see Figure 10). The NS rail (line runs from Greensboro into Colon (north of Sanford) and on to Brickhaven. Once the rail spur is complete, CCPs will be delivered by train, with one train (comprised of 110 rail cars) delivery every three days. This is not expected, to negatively impact, traffic along the rail lines, based on freight volume statistics for the lines (Federal Railroad Administration, 2015; List et al., 2008). Figure 11 shows railroads and stations In the vicinity of the Colon mine. The rail traffic to the Colon mine will be temporary, and once the mine structural fill project is completed in accordance with the structural fill permit application, the rail traffic would cease. 2 J�q � p , RE b""'A' 2.1.2 Existing Disamenities There are several disamenities that are associated with the dormant mine and in the surrounding area which, affect the residential community. Disamenitie5 are features that detract from the attractiveness, safety, livability, or convenience of an area and influence housing values. Disamenitles associated with dormant clay surface mine site include: Highwalls and potentially unstable slopes Barren soil and lack of vegetative cover Construction and manufacturing debris Lack of drainage and associated undesirable surface water bodies These disamerittles will be remedied by the Colon mine reclamation project, The structural fill will bring the elevation up to just slightly above original grade, which will not be visible from the surrounding residential areas. The structural fill will correct potentially hazardous slopes and improve drainage surrounding the site. Engineering controls installed include geolsyntbetic liners, leachate collection system, and groundwater monitoring wells. A vegetative cover will make the site amenable for industrial or commercial development, agricultural use, or green space. This provides the opportunity for future socioeconomic benefits without clearing of forested land. Moreover, putting CCPs into beneficial use for this, project obviates the need to disturb virgin lands to provide structural fill, thereby conserving natural resources, that would otherwise need to be obtained through other mining activity, and avoiding the energy expenditures and emissions associated with that mining. Disamenities not associated with the project include undeveloped brownfields in the immediate area, abandoned industrial sites, and neglected commercial and residential structures. Figure I shows the location of brownfields within Lee County relative to the Colon mine site, which are clustered within the city limits of Sanford. Brownfield mapping was obtained from Lee County geographic information system (GIS) data. it is important to note that cleanup and redevelopment of a brownfield can remedy a disa men ity, Directly across from the Colon mine along Brickyard Road is the abandoned General Shale industrial site. With lower demand for brick products, General Shale consolidated area operations in 2008, resulting in the razing of facilities across from the mine which border Brickyard Road and Colon Road. As a result, there is a large dormant area with construction and demolition (C&D) debris directly across the street from the entrance to the Colon mine (Figures, 2A,,B). wM The census tracts within the vicinity of the Colon mine are shown in Figure 3, which also shows the one- mile and five-mile distance radius from the site. The population of Lee County, as reported in the 2010 U.S. Census of Population, is 58,735. Census Tract 307'.01, which includes the Colon mine site, has a population of 4,588, with 79.5% of the population 18 years and older. Census Tract 302, which includes a portion of the city of Sanford, has a population of 3,988, with 70,.71% over the age of 18. Table 1 shows the population: of Lee County by census tract. 1" IREMICH Lee County has an overall minority population of 41% but some census blocks in the study area have significantly higher (over 50%) minority populations, as shown in Table 1. The impact on minority communities is discussed in further detail in Section 4.0 Environmental Justice. E03��w Within Lee County, 55.9% of the population over the age of 16 is employed. In the census tracts within the study area, employment ranges from a low of 31.9% in Census Tract 303 (within Sanford city limits) to 63.5% in Census Tract 301.02, located southwest of the Colon mine site. Census Tract 307.01, which, includes the Colon mine site, has S8.5% employment rate. The majority of the employed population works in, manufacturing (22.7%), reflecting the importance of this industry to the local economy. Another 19.9% work in educational and health services and 12.7% are employed in retail trade. Employment statistics for the census tracts, are listed in Table 2. The median household income in Lee County is $44,819; this is below the national average of $53,1346. There is wide disparity in household income among census tracts near the mine location, from a high of $74,457 median income in Census Tract 306.01 to a low of $19,279 in Census Tract 303. Census Tract 307.01, which, includes the Colon mine site, has a median household income of $46,413. Nearly 60% of the househoids in Census Traict 303 earn less than $25,0GO per year. The income statistics for the census tracts in the study area are summarized in Table 3. Note that the census tract with the highest minority composition is one of the furthest from the Colon mine, on the south side of Sanford (Census Tract 303), and that the census tract with the highest median income is one closest to the mine (Census Tract 306.01). 2.2 STUDY AREA: BRICKHAVEN MINE LOCATION The Brickhaven mine site is located in southern Chatham County near Shearon Harris Lake and the city of Moncure, The mine site is co-located with an active General Shale Brick linc. clay mine. Both mines, were permitted in 1985, and the permit for Tract A was transferred to, Green Meadow LLC in early 2015. The mine is accessed via Moncure-Flatwood Road frorn Corinth Road, which is paved. Past the rive site, Moncure-Flatwood Road turns to gravel. The only structures visible from Moncure-Flatwood Road leadingto the site are a dirt road leading into the mine and a large mound that is on the active General Shale property, The mine site is surrounded by dense forest /trees on all sides and is quite secluded. The area within five miles of the mine site is heavily forested and rural, but also is home to several major manufacturing plants and industrial sites including: AraucoPly lumber manufacturing plant Boise Cascade plywood manufacturing plant Arclin resin manufacturing plant General Shale brick manufacturing facility Triangle Brick Company Merry Oaks brick manufacturing facility Duke Energy Shearon Harris nuclear plant Duke Energy Cape Fear Power Plant (retired in 2012) 01 4 64 6WgM icti 2.2.1 Transportation of CCPs Initially CCPs, will be transported by trucks, accessing the mine via Moncure-Flatwood Road from Corinth Road, Trucks will travel to the mine site via US Highway I (US-1) to Old US Highway 1 to Corinth Road, 'The intersection of Corinth Road along Old US Highway I is approximately 3,5 miles from the US-1 exit that is used by freight trucks. US-1 is a six-la,ne divided highway that currently accommodates significant truck traffic. Because of the heavy industry already in the area, truck traffic is common along Old US Highway 1 and Corinth Road. The stretch of Corinth Road that trucks would travel Is mainly industrial, with the AarucoPly plant, Boise Cascade plant, Arclin plant, and Duke Energy Cape Fear Power Plant located directly along the trucking route, An RV park and a few residential homes are located near the intersection of Corinth Road and Moncure-Flatwood Road. Trucks transporting, CCPs will be traveling only along the paved section of Moncure-Flatwood Road. The estimated truck traffic is expected to be approximately 100-130 trucks per day until the rail spur is complete. This is equivalent to 12 — 16 trucks per hour during normal business operating hours. The truck traffic will follow a route that is commonly used by the aforementioned industrial facilities in the study area. The trucks will not be traveling through the commercial or residential areas of the city of Moncure. Thus, because of the trucking route, and the fact that truck transportation will cease once the rail spur is complete, the truck traffic is not expected to have significant transportation- related impacts on the residents of Chatham County. Both CSXT and NS have freight rail lines in the vicinity of the Brickhaven mine, with the CSXT line north of the mine site parallel to Old US Hwy 1, and the NS line south of the mine site (see Figure 11). Once a rail spur is complete, CCPs will be delivered by train only, with one train (comprised, of 110 rail cars) delivery approximately every three days. This is not expected to disrupt freight traffic along the rail lines, based on freight volume statistics for the lines (Federal Railroad Administration, 2015; List et al., 2008). Figure 11 shows railroads and stations in the vicinity of the Brickhaven mine. The truck and rail traffic to the Brickhaven mine will be temporary, and once the mine structural fill project is completed in accordance with the permit application, the truck and rail traffic would cease. 2.2.2 Existing Disamenitles There are several disamenities that are associated with the abandoned mine and in the surrounding area which affect the community. Disamenitles are features that detract from the attractiveness, safety, livability or convenience of an area and influence, housing values. Disamenitles associated with the unused portion of the Brickhaven clay surface mine include: 0 Highwalls and potentially unstable slopes a Barren soil and lack of vegetative cover 0 Construction and manufacturing debris 0 Lack of drainage and associated undesirable surface water bodies These disamenities will be remedied by the Brickhaven mine reclamation project. The structural fill will bring the elevation up to just slightly above original grade, which will not be visible from the rights-of- way. The structural fill will correct slopes and improve, drainage surrounding the site. Engineering controls installed include geosynthetic liners, leachate collection system and groundwater monitoring wells. A vegetative cover will make the site amenable for industrial or commercial development, agricultural use, or green space. This provides the opportunity for future economic development benefits without clearing of forested land. Moreover, putting CCPs into beneficial use for this project obviates the need to disturb virgin lands to provide structural fill, thereby conserving natural resources that would otherwise need to be obtained through other mining activity, and avoiding the energy expenditures and emissions associated with that m:ining. Disamenities not associated with the project include existing industrial facilities and related, truck and rail traffic. Existing industrial facilities along Corinth Road are shown in Figures 4A,B, East of the mine site along Christian Chapel Church Road is heavily wooded with some farms. There are several vistas in this area from where Shearon Harris nuclear plant cooling tower can be seen from the road. 2.2.3 Population and Demographics The census tracts within the vicinity of the Brickhaven mine are shown in Figure 5, which also shows the one-mfle and five-mile distance radius from the site. The population of Chatham County, as reported in the 2010 US. Census of Population, is 64,866. Census Tract 207.02, which includes the Brickhaven mine site and the town of Brickhaven, NC has a population of 3,864. In this census tract, 78.8% of the population is 18 years and older. Table 4 shows the population of study areas by census tract. Chatham County Ihas an overall minority population of 29%, and none of the census blocks within a five- mile radius of the mine site have a minority population over 50%. The impact on minority communities is discussed in further detail in Section 4.0 Environmental Justice. 2,2.4 Employment and Median Household Income Within Chatham County, 55.1% of the population over the age of 16 is employed. Across the census tracts in the .study area (which include Lee County census tracts), employment is rather consistent, ranging from a low of 54,.9% in Census Tract 307.02 located in Lee County to a high of 693% in Census Tract 532.07 located in Wake County. The majority of the employed population in Chatham County works in educational services, health care and social assistance jobs (26.1%), Another 13.7% work in manufacturing and 11.79 are employed in professional, scientific, management and administrative fields. Employment statistics for the census tracts in the study area are listed in Table S. The median household income in Chatham County is $57,091; this is above the national average of $53,046. Household income in Census Tract 207.2 where the mine is located has a median income of $55,975. The lower bound on median income in the study area is $44,598 in Census Tract 307.02, located In Lee County. The high end of income is in Wake County Census Track 534.13 with a median income of $92,535, The income statistics for the census tracts in the study area are summarized in Table 6, 1541? Both the Brickhaven mine and Colon mine structural fill projects are reclamation projects that will bring the elevation of the mined land up to just slightly above original grade, which will not be visible from the surrounding rights-of-way. The structural fill will correct potentially hazardous slopes and improve, drainage surrounding the sites,, At the Brickhaven and Colon mines, a vegetative cover will make the site amenable for industrial or commercial development, agricultural use, or green space, which could add to the local economy once the site reclamation is complete. Benefits of reclamation projects can include market-based (economic) benefits and non-market, or social benefits, Economic benefits to a locality accrue from jobs added during construction and 6 ""' 641CH operation, associated wages, business taxes, and indirect and induced benefits derived from spending in the community, Indirect benefits are added to industries that are suppliers to the primary industry conducting the reclamation project, which includes materials suppliers and subcontractors. Induced benefits are a result of corollary spending within the community by direct employees of the project as well as the workers in the indirect industries (i.e., subcontractor employees). Spending within the community by these workers on food, retail purchases, and hotel accommodations produces additional economic benefits to the area. Non market benefits of reclamation projects can include ecological and aesthetic improvements, recreational benefits, and changes in property values. Quantification of these benefits Often relies on survey-based stated preference models that attempt to assess how much people are willing to pay to derive social value from improvements (or be compensated for negative impacts). Where reclamation of surface mines Is undertaken to make the land amenable to future economic development, both market and non-market benefits may be accrued (Kuter, 2013). Fundamental objectives of the Colon and Brickhaven mine reclamation projects are three-fold: 0 To ensure that post-mining land has a feasible self-sustaining future with respect to both environmental and socioeconomic benefits 6 To encourage better use of energy and natural resources in reclamation by using recycled materials a To eliminate environmental and .safety impacts associated with slope instability and poor drainage from the mine site Economic studies of reclamation project benefits have consistently demonstrated a multiplier effect compared to the Initial construction investment. In some cases this multiplier is as high as 3.2; in other words, for every million, dollars in direct spending related to the reclamation project, 3.2 million doliars in economic benefits would be accrued (Talberth et A, 2001). Reclamation designed to achieve new end use can further increase the potential for economic benefits. There are numerous examples of reclamation of sand, gravel, crushed stone, and clay quarries and mines for office parks and other commercial or industrial uses (MEC, 2015). A study of the economic impacts, of mine restoration projects In two Idaho counties found that expenditures of $6.8 million annually resulted in $9.1 million in total. output each year, with the economic impacts expanding over the study period (Headwaters Economics, 2014). Investigations of twelve case studies where landfills were constructed at abandoned mine sites show that with proper design and engineering controls, this reclamation method presented no increased risk of environmental contamination, and presented many siting advantages (Michaud et al., 1995). Engineering controls that led to successful reclamation include liner, leachate management, groundwater protection, landfill design, and construction quality. For the Colon and Brickhaven mines, the reclamation structural fill projects will employ 75 or more workers at each site through 2019. When possible, Charah is hiring local workers. Charah has already hired 40 people for the Brickhaven site. Of those employees, 25 are local to the area (reside within Chatham or Lee counties), In addition, Charah is utilizing local subcontractor's and suppliers, for fuel supplies, construction equipment and materials, surveying, electrical work, and hotel accommodations for out-of-town staff. Estimated spending for fuel supplies alone within Lee County is $7.5 million. Direct and indirect spending for construction- related activities within Lee and Chatham counties is estimated at $22.5 million. In addition, other indirect and induced benefits will be accrued through hotel 7 accommodations, food and other employee-related spending. As a result, the local economic impact from the project is conservatively estimated at $49 million. 0M Property values serve as indicators of the costs to communities of undesirable land uses, including degraded landscapes from mining, brownfields, abandoned and derelict properties, pollution from industrial facilities, and visual and odor issues associated with municipal solid waste landfills. These undesirable land uses are typically considered disamenities. Economic analyses of housing values related to disamenities typically employ hedonic pricing models, which estimate the values for ecosystem or environmental services that directly affect home prices. The premise of such models is that the value of a good (in this case, residential homes) are influenced by the attributes of the area, either positively or negatively. For example, open space or parkland has been shown to have a positive correlation with property values while surface mines or quarries typically have a negative correlation with property values. H'edonic models are often used to isolate the influence of factors such as land alteration and uses including mines, quarries, and landfills. Numerous case studies have been published on the use of CCPs for coal mine reclamation. Because the chemical composition of CCPs, mitigates acid: mine drainage, such reclamation projects provide substantial ecological as well as economic benefits. Specific economic analyses of non-coal surface mine filling projects using CCPs were not found. However, an evaluation of the impact of municipal solid waste landfills, on local economics can prove to be instructive in this case. One must keep in mind the many differences between a CCP structural fill project and a municipal solid waste landfill (landfill), The former is a monofill and the composition of the CCPs is limited to inorganics. The latter accepts a wide variety of wastes with varying composition, generates explosive gases that need to be captured and managed, emits greenhouse gases, can have nuisance odor issues, and must be controlled for 'disease vectors" such as rodents and other pests. While each site and locality is unique, numerous empirical and case studies on the impact of landfills on rural residential propertyvalues have found many landfills pose no statistically significant effect on property values (Ready, 2005; Bouvier et al., 2000; Farber, 1998). Some studies have suggested that landfills will not necessarily have negative impacts on property values, and that design and stewardship are Important factors. Where landfills pose odor or pollution issues, or are visually prominent, property values have been found to decrease, with distance from the landfill being a primary determinant in housing value Impacts. Meta analysis of several different landfill studies suggest property values increase approximately five to six percent per mile from the facility, with impacts confined to within two to three miles (Ready, 2005; Bouvier et al., 2000). Some studies have found property value impacts are associated with levels of risk concern while other studies have not observed that relationship. A study by McClelland et aL (1990) revealed that perceived risks by residents from a hazardous waste landfill can differ substantially from statistical environmental and human health risks. Positive change in odor perception was correlated with a large reduction in health risk beliefs. For the Brickhaven and Colon mine sites, odor and visual prominence will not be detriments. Both mine sites are not visible from rights-of-way and neighboring properties and CCP fills do not emit odors. Further, there is already, significant industrial activity in both study areas, as well as related truck and rail traffic. Although the mine structural fill projects will not be associated with many of the issues surrounding municipal solid waste or hazardous waste landfills, a concern is whether perceived health risks from CCPs, will influence property values. Community perceptions can be influenced by the media and by 'a-MICKi education. As a, result of the than River spill in North Carolina, federal and state rulemaking addressing coal ash disposal, and the publication of results of current private well testing being conducted in the vicinity of coal ash ponds in North Carolina, there is understandable concern on the part of a community about coal ash in general, and coal ash projects specifically. The federal CCR Rule (80 FR 21302-2150; April 17, 2015) set the standard for coal ash disposal in a landfill, which requires construction with a composite liner and a leachate recovery system. When, the projects, are completed, the CCPs will be fully sequestered from the environment. Clear communication of these safeguards can be used to address the citizen concerns about the use of CCPs in these projects. Remediation projects that improve degraded landscapes and either restore original use or create new use opportunities have been correlated with increases, in property value. Such positive effects have been observed where the landfill closure was associated with redevelopment for recreational use (Farber, 1998). Housing data collected before and after the closure of a landfill facility suggest property values increase by 10% once the facility is closed (Kinnaman, 2009). Further, because rural landfills are frequently not easily visible, unless there is a, constant reminder of the landfill presence such as line -of- sight from the right-of-way, closure usually mitigates the stigma of health risks (Bouvier et al., 2000; McClelland et al., 1990), For these reasons, reclamation and development of the Colon and Brickhaven sites are not likely to have measurable impact on housing values. However, redevelopment of the mine sites for commercial, industrial or recreational uses has the potential to provide additional economic benefits to the area. 10 4. Environmental Justice Analysis An environmental justice analysis has been conducted to analyze whether the Brickhaven and Colon mine projects would result in disproportionately high and adverse impacts on minority, low income, and/or sensitive populations. As directed In Executive Order 12898, "Federal Actions to Address Environmental Justice in Minority Populations and Low-income Populations" (59 FR 7629; February ,11, 1994), "each; Federal agency shall make achieving environmental justice part of its mission by identifying and addressing, as appropriate, disproportionately high and adverse human health or environmental effects of its programs, policies, and activities on minority populations and low-income populations," U.S. Census Bureau data were used to determine minority and low-income population percentages for populations within a five-mile radius of the Brickhaven and Colon mines. The U.S. Census Bureau uses geographic units, with the smallest census geographic unit being the Census Block, followed by Census Block Groups, and Census Tracts, For this evaluation, census block groups within a five-mile radius of the Brickhaven and Colon mines were evaluated. Data were gathered from the U.S. Census Bureau's 2010 Census and the 2009-2013 American Community Survey for all census block groups within the evaluation area (U.S. Census Bureau 2010, 2013). Figures 6 and 7 show the Census Block Groups for the Brickhaven and Colon facilities. In order to identify minority and low-income populations, the following thresholds of'significance for having, a potential environmental justice population were used: For Race, any black group where 50 percent or more of the population is minority (defined as individuals who identify themselves as American Indian or Alaskan Native, Asian, Native Hawaiian or Other Pacific Islander, Black or African American, Hispanic, some other race, or two or more races), is considered to have a potential environmental justice population. For Race, any block group with a non-white population at least ten percentage points higher than the county average would have a potential environmental justice population. For Poverty Level, any block group where the percentage below poverty level is above the county average by five percentage points or more is considered to have a potential environmental justice population. 4.1 'MINORITY POPULATION ANALYSIS Minorities comprise 29% of the population in Chatham County, 41% of the population in Lee County, and 38% of the population of Wake County (two census block groups within a five mile radius of the Brickhaven Mine are within Wake County), as shown on Table 7, Minorities comprise 35% of the population of North Carolina. Seventeen census, block groups are within a five-mile radius of the Colon mine and have minority populations ranging from 9-90% (this includes three census block groups that are shared between the two mines: Block Group 2, Census Tract 2016, Chatham County; Block Group 1, Census Tract 307.01, Lee County; Block Group 2, Census Tract 307.01, Lee County). Fight of these census block groups meet the definitions for having a potential environmental justice population based on minority population as listed in Section 4.0 above. 41CFf As shown in Figure 6, the census block groups with potential environmental justice populations 1comprising Census Tracts 301 through 304) are located within the south and southwest areas of the five mile radius from the Colon Mine, and are located in or near the city of Sanford, North Carolina. 4.1.2 Brickhaven Mine Eight census block groups are within a five-mile radius of the Brickhaven mine, and have minority populations ranging from 15-34%. The census block groups surrounding the Brickhaven mine do not meet the definitions for having a potential environmental justice population based on minority population as listed as in Section 4.0 above, and are also below the 35% minority population of North Carolina. 4.2 POVERTY LEVEL ANALYSIS Table 8 presents data on low-income populations for the census block groups within a five-mile radius of the Brickhaven and Colon facilities. In Chatham County, 12% of the population is below the poverty level, in Lee County 19% of the population is below the poverty, level, and in Wake County 11% of the population is below the poverty level. On the state level, 17% of the population of North Carolina is below the poverty level. For the seventeen census block groups that are within a five-mile radius of the Colon mine, the percent of the population below the poverty level ranges from 1-49%. Eight census block groups meet the definitions for having a potential environmental justice population based on poverty level as listed in Section 4.0 above. Seven of the eight Census block groups are the same census block groups that meet the definitions for having a potential' environmental justice population based on minority population as listed in Section 4.1 above, and all eight census block groups are within Census Tracts 301 through 304, located within the south and southwestern areas of the five-mile radius from the Colon Mine, and centered around the city of Sanford, North Carolina, Table 9 provides a, summary of the potential environmental justice communities by census block group in the vicinity of both mines. 4.2.2 Bricichaven Mine For the eight census block groups within a five-mile radius of the Brickhaven mine, the percent of the population below the poverty level ranges from 3-16%. The block groups surrounding the Brickhaven mine do not meet the definitions for having a potential environmental justice, population based on poverty level as listed as in Section 4.0 above, and are also below the 17% of the population of North Carolina below the poverty level. This is also summarized on Table 9. 4.3 SENSITIVE RECEPTORS Figures 8 and 9 show the locations of sensitive receptors within a five-mile radius of the Colon and Brickhaven mines, respectively. Sensitive receptors include but are not limited to churches, schools, daycare centers, medical facilities, parks, and recreational areas. These are areas where receptors may be more susceptible to potential adverse human health impacts. 12 As can be seen in Figure 8, most sensitive receptors are located more than 2 miles away from the Colon mine. A park, medical facility, school and pool were identified within approximately 2 miles of the m:line. There are also several churches located less than 2 miles from the mine. Transportation of CCPs to the Colon mine will be exclusively by rail, so sensitive receptor locations will not be affected by truck traffic. For the Brickhaven mine, there are several churches identified between one and three miles from the mine. A school was identified approximately three miles from the Brickhaven mine. Transportation of CCPs to the Brickhaven mine will initially be by truck (as discussed In Section 2.2.1), and once a rail spur is completed, CCPs will be delivered by rail. only two sensitive receptors (both churches) are located along the trucking route to the Brickhaven mine site (shown on Figure 9). These are the same receptors that would be located along the rail route. As noted earlier, these roads currently accommodate significant truck traffic due to the industry already present in the area. This truck transportation will cease once the rail spur is complete, so the impact to the community will be short-term. The potential adverse environmental and human health impacts of the Brickhaven and Colon mine, projects are summarized below, along with an analysis of the potential for disproportionately high and adverse effects for the potential environmental justice population: Identified in Sections 4.1 and 4.2. 4.4,1 increased truck and rail traffic impacts The projects are not expected to significantly impact residential areas at either the Brickhaven or Colon mine sites. CCP will be delivered to the Colon mine by rail once the rail spur is complete. One train (110 cars) will deliver CCP approximately every three days. The addition of one train every three days will not significantly increase freight traffic and associated noise or transportation-related impacts. Truck traffic to the Brickhaven mine will follow the route that is currently used by other industrial facilities and that avoids residential areas in the study area. Thus, there are no disproportionately high adverse impacts expected for minority and low income populations. Potential transportation impacts related to traffic are discussed in detail in Section 2. 1.1 and 2.2.1. 4.4.2 Potential releases of CCPs to the environment in order to evaluate whether CCP could potentially be released into the environment at the Brickhaven or Colon mines, the mechanisms for release of CCP to the environment (termed potential migration pathways,), and the mechanisms by which human and environmental receptors could be exposed to affected, media (termed potential exposure pathways) are identified. Evaluation of Potential Migration, Pathways The structural fill projects at the Colon and Brickhaven mines involve the use of a three-component liner system to contain the CCPs, a leachate collection system, and a cover andstormwater management system, as described in Section 1.0 Introduction. The Brickhaven and Colon projects are fully regulated by DENR under CAMA14, including a rigorous permit application submission, review, and approval process, under the DENR Division of Energy, Mineral and Land Resources. The project complies with 13 """k-RICH CAMA14 and the cells and infrastructure represent the best available technology for completing the project. The principal potential migration pathways that are relevant to CCP structural fill at the Brickhaven and Colon mine projects include: Leaching, which can occur when precipitation infiltrates the fill material and constituents (i.e., metals/'inorganics) partition, from CCP to the infiltrating water, resulting in water within the structural fill material that contains inorganics. The cover system that will be installed over the structural fill once it has achieved final design grade will substantially mitigate infiltration of storm water and, therefore, minimize leaching. However, precipitation events that occur while the structural fill is being placed (i.e,, during construction) may result in accumulation of storm water within the cells and subsequent leaching. However, infiltration of storm water during construction will be minimized in accordance with a project storm water management plain. Leachate that is generated through storm events during construction will be managed by a leachate collection system, 01 Migration to groundwater, which involves the infiltration of leachate to the groundwater table, will be an incomplete imi,gration pathway because the base finer is designed to prevent migration of leachate to groundwater. In addition, the leachate collection system will prevent a buildup of leachate volume on the base liner. Erosion and subsequent transport to soil and surface water, which could occur if the CCP, structural fill was left uncovered and storm events carried CCP- containing particles from the project to downstream storm water receiving bodies, However, the cover that will be placed over the structural fill will prevent direct contact of storm water with the CCP material (the cover is designed to prevent storm water infiltration, to the structural fill and to shed storm water and convey it away from the project). The storm water management plan provided in the permit applications indicates that storm water that does not contact structural fill will be diverted to storm water retention ponds, and a perimeter ditch system will convey storm water runoff to sediment basins that then discharge to existing drainage features. In addition, during construction, erosion and storm water management controls, including interim soil covers, will be in place to prevent erosional transport, Storm water that contacts structural fill during construction (i.e,, during placement of fill) will be retained within the construction area and treated as leachate. Given the erosion and sediment control measures that will be in place, coupled with the leachate collection and treatment system, the potential for environmental impacts from these operations will be minimal. Wind erosion/dust migration refers to the partitioning of fine grained particles to the air due to mechanical process or wind erosion. This migration pathway could occur through mechanical process when CCP structural fill is moved from trucks and rail cars to the cells, graded, and compacted. However, the project operations plan specifies dust controls that must be used during construction to prevent migration of CCP structural fill material off of the project site. Specifically, the plan requires that dust be controlled by using any one, or combination of the following: watering; establishing vegetative cover; mulching; structural controls consisting of wind breaks (Le., fencing and/or berms) and temporary coverings, (i.e., tarps); spray applied dust suppressants ; soil stabilizers (i.e., soil cements); and modifying the active working area. In addition, interim soil covers will be applied to open work surfaces during periods of construction 14 1111IR inactivity. These measures will control dust and prevent migration of dust off -property during construction. The final cover will isolate CCP structural fill, thereby rendering the wind erosion migration pathway incomplete once construction is complete. in summary, the only potential migration pathway that will exist for this project is leaching from the CCPs; however, migration of leachate to groundwater will be an incomplete pathway due, to the design of the project, which requires a three-component base liner and a leachate collection system. Evaluation of Potential Exposure Pathways Potential exposure pathways to the CCP structural fill could hypothetically include: * Direct contact with structural fill; * Inhalation of particulates released to the air from structural fill; Direct contact with CCP- related, constituents migrating to groundwater or surface water, if groundwater is used as source of drinking water and if surface water is used for recreational purposes or supports an aquatic habitat; and/air Direct contact with leachate collected via the leachate collection system. Migration, pathways to air, groundwater, and surface, water are incomplete, as described above. The soil cover will prevent direct contact with structural fill. Leachate is collected in a closed system and treated and disposed of at a water treatment plant. Water discharged from the mines will be required to meet water quality standards which will ensure protection of human health and the environment. Based on this analysis, there are no complete exposure pathways to constituents associated with CCP structural fill for human or environmental receptors. In addition, increased truck and rail traffic Impacts are not expected as part of the Brickhaven and Colon mine projects. Therefore, the potential for disproportionately high and adverse effects within a five-mile radius of the Brickhaven and Colon mines and for the area around the city of Sanford in Lee County that has been identified as a potential environmental justice population location has not been Identified. W� licli The Colon and Brickhaven sites are former open-pit clay mines. The purpose of the structural fill reclamation projects is to return, the land to beneficial re -use for industrial or other purposes, Without these reclamation projects, the mines would continue to lay dormant, or other virgin fill would be needed to accomplish the reclamation. Thus the project siting was driven by the existence of these dormant mines. The projects will use CCPs from North Carolina power stations in an engineered structural fill that meets all state requirements and is fully regulated by the state. The implementation of the engineering requirements (installation of a three component liner system, the employment of the leachate collection system, and the installation of the cover system) will effectively sequester the CCPs from the surrounding environment. Transportation of CCPs to the project sites will be via rail; initially CCP transportation to the Brickhaven mine will be via truck along specified truck routes, but once the rail spur is completed, CCPs will be delivered by rail. The rail traffic will cease upon completion of each projlect. A detailed demographic and geospatial analysis relevant to socloeconomics and environmental justice was conducted for the Colon and Brickhaven mine structural, fill sites to assess potentially adverse Impacts and identify sensitive receptors. A. qualitative evaluation of these potential impacts has been conducted. This study examined the socioeconomic factors present in a five-mile radius surrounding the Colon and Brickhaven mine sites, including the surrounding areas, transportation, existing disamenities, population and demographics, and employment and income. To assess the potential economic impacts, market and non-market benefits of the reclamation projects were identified and adverse impacts on property values were analyzed based on available literature and similar studies, An environmental justice analysis was prepared to analyze whether the f3rickhaven and Colon mine projects would result in disproportionately high and adverse impacts on minority, low income, and sensitive populations. Based on this analysis, the Colon site has eight census block groups that meet the definition for having a potential, environmental justice population based on minority populations, and eight census block groups that meet the definition of having a potential environmental justice population based on poverty level. Seven of the eight census block groups, meet the definition for having a potential environmental justice population for minority population and poverty level thresholds of significance—All eight census block groups are centered around the city of Sanford, NC which is south/southwest of the mine site and CCP transportation corridors. Most sensitive receptors are located over two miles away from the Colon mine. Due to the temporary timeframe for CCP transport, limited sensitive receptors in the immediate vicinity, of the site, and existing disamenities in the study area, the Colon mine structural fill project is not expected to have significant adverse impacts on environmental justice populations or property values. The Brickhaven mine study area does not have any census blocks that meet the definitions for having environmental justice populations based on minority populations or poverty level. The transportation of CCPs to the Brickhaven site by truck initially will avoid residential areas and travel along a road corridor that is already utilized by other industries in the area. As both the truck and rail transport of CCP is temporary, the Brickhaven mine structural fill project is not expected to have notable adverse impacts on property values, Further, because the structural fill reclamation projects will remedy existing disamenities associated with the inactive mines, rehabilitate currently unusable land to allow for future economic development 16 1 DRICH use, and add local jobs and spending associated with construction, the Brickhaven and Colon projects have the potential to provide substantial economic benefits to Chatham and Lee counties, 17 1-11 P § 0 ff IMM = Bouvier, RA, JM Halstead, KS Conway, AB Manalo. 2000. The Effect of Landfills on Rural Residential Property Values: Some Empirical Evidence, Journal of Regional Analysis and Policy, 30(2):23-37, Farber, S. 1998. Undesirable facilities and property values: a summary of empirical studies. Ecological Economics, 24:1-14. Federal Railroad Administration. 2015. Rail Network Development, Maps — Geographic Information System, U.S. Department of Transportation. Web. 4 June 2015, htto://frap-is.fra.dot.Rov/GISFRASafetyI Headwaters Economics. 2014. The Economic Impacts of Restoration: Custer and Lemhl Counties, Idaho. Headwaters Economics, Bozeman, MT, Web. 77 May 2015, htIRiLhea,d,y'aterseconon,iics.org/wphw/wq- content/uoloads/ldaho Restoration Renort.pdf Kinnarnan, TC. 2009. Landfill Closure and Housing Values. Contemporary Economic Policy, 27(3)-1380- 389, Kuter, N. 2013. Reclamation of Degraded Landscapes due to Opencast Mining, Advances in Landscape Architecture, Dr. M. OzVavuz (Ed.), ISBN: 978-953-1167-2, InTech, DOI: 10.5772/557916. List, G, R Foyle, H Canipe, J Cameron, E Stromberg, 2008. Statewide Logistics Plan for North Carolina, Final Report. North Carolina Office of State Budget and Management, McClelland, G, W Schulze, B Hurd. 1,990. The Effect of Risk Beliefs on Property Values: A Case Study of a Hazardous Waste Site. Risk Analysis, 10(4);485-497. Michaud, LH and D Bjork. 1995. The Feasibility of Constructing Solid Waste Landfills as a Reclamation Method for Abandoned Mine Lands, Proceedings of the Conference on Mining and the Environment, Sudbury, Ontario, May 28— June 1, 1995; pp. 227-237. Minerals Education Coalition (MEQ. Reclamation Stories - Industrial. Minerals Education Coalition, n.d. Web. 28 May 2015. Ready, R. 2010, Do Landfills Always Depress Nearby Property Values? Journal of Real Estate Research, 32(3):371-339. Talberth,J, R Conn, R Berrens, M McKee. 2001. A Framework for Assessing the Economic Benefits of Mine Reclarnation. Ecology and Law Institute and Amigos, Bravos, 2001. U.S. Census Bureau, 2010. American Fact Finder. 2010 Census Summary File 1. Table P9 Hispanic or Latino, and not Hispanic or Latino by Race. Total Population, Accessed at. htt,pj/f a ctf in de, r. ce ns us. RovIf aces/ n avTLOLpAg es/search results. xht m I? ref re,shmt#no ne U.S. Census Bureau. 2013. Table:B17021 — Poverty Status of Individuals in the Past 12 Months, by Living Arrangements. 2009-2013 American Community Survey 5-Year Estimates" Accessed at: hllR afgs ,Lfpctfinder,c,gnAus.gov/faces/nav/isf/ _p jsearchresults.xhtmi?refresh= t#none. 18 11-11k 6'7�1�L" '11CH U.S. Census Bureau. 2013. American Fact Finder, Table S1901. Income in the Past 12 Months (in 2013 Inflation-Adjusted Dollars). U.S. Census Bureau. 2013. American Fact Finder. Table DP03: Selected Economic Characteristics. U,S. Census Bureau, 2013. American Fact Finder. Table S0601: Selected Characteristics of the Total and Native Populations in the United States. 19 ri t A to a- ti 15 X , Pdg. 1 .1, 1 T.We 2 E mplbV,.,.t St.Utk. f., Ca.— Traits 1. th. Vkirdly .1 d. CWn Ml— 71% 14,R% 1,6% SA% L2% G G% 5.4% 67% 7.a% ia131F 2.7% $Z% 41155 35% a,E3S 13% 00% 8.016 kAt FY & AAJ I qllG H, INCL, T.Ha Trans e1, W6=15 N. —nh COMM TMM Xn.W., Can— TI.M 302, Lam n,.ST T", WComllm L,9WM�NTFA7 61., dl. ranee, and real cetavnand a,Y�31 2 In L--Cft-MV-ft-n�,h- CA—tv, W. nh "- ty. �fl ��V� N. h" VW ". �—twl lm�fi C—tv. U.4h Ndh U M.. �.Il- �Ma. Q.1ka CAwl. Cdr Ww�- P, C-11- uw�. 5 1 PnR!��d 55.� im 919% 4A% 3i,g% p 5y. WA U—N,"d , 7-5% MGM c J-m A, 10.10% 412% &.2% 4,5% S.. .L �: U Cens us Bui em U, X17914 2013 5 -wear Amc'rlcjl n Gomm u "hy sn' y 25'1: 4 I.545 zmo 1.7" xAa YIM 2,17D 1,620 11,640 NqhArq and hwhj, and 1..514 t.5% co% 1.1% C.5% 5155c 24% 611A G.3% 11..5% 4.Ex M2�-- 21i'm 519% 2.90% 1.4% 73% I(i-9% 2312% AAA 2.3.4% 65% 21.9% 29.6% 2-M A % 21.6% 71% 14,R% 1,6% SA% L2% G G% 5.4% 67% 7.a% ia131F 2.7% $Z% 41155 35% a,E3S 13% 00% 8.016 kAt FY & AAJ I qllG H, INCL, T.Ha Trans e1, W6=15 61., dl. ranee, and real cetavnand a,Y�31 2 In ImA 7.4% FrOPWOMAII, MmVlk, and mana; ...... "WAIsmil—d —1C rnanw—t eC.Ib. I'sAefal 7-S% im 919% 4A% &.2% 4,5% S.. .L �: U Cens us Bui em U, X17914 2013 5 -wear Amc'rlcjl n Gomm u "hy sn' y 71% 14,R% 1,6% SA% L2% G G% 5.4% 67% 7.a% ia131F 2.7% $Z% 41155 35% a,E3S 13% 00% 8.016 kAt FY & AAJ I qllG H, INCL, T.Ha Trans e1, W6=15 Page 1 Uf I Table A JAI 5140INU fol CengudTrtletl In IfieVidirrity of tht Colon Mine HALEY & AWRICH INC, 3 More 3 Cohn Inonme Com ua Track.x& U512015 Gnaws UeCounty, Cersw7rac%206 COMISUSTMILIJU2.02 npusTratI CensaTranSID3 CenmaTraM 306XI CcnmjsTriict3OM CensusTbU307.132 Hoosehold Income North ChalhannCounlry� Lee County, Norit Lt County, Nord Lee C(H.MVyrI I.ReCounty.Nurth Loe County, North tw. County, North c4m1Ifl8 North Caraldrum carollma County, North CAI Camba Camilab Caroflniz CaI CarWho tal Number of ljou�bIoUs 121�2!04 2.196 2,315 LIM SIB? 1.2r.1 2846 Ile than $10,000 17,7% 1 � 14% : 71VA 0AS 10,4% 27.9% 1.5%, 7.5% 7-6% 20,000 %m 5.14,999 jr.1% M% U% 419% 14 139% 13,0% 0,'914 17% 5.756 $15,00, 1 o 524,995 15:7% 11-514 15,6% 3-n, M3% 20.9% 559% M3% 17% W j$25,D tP $ �4,E`99 % 1218*6 18,3% 3118% 16.21% 17.2% IL9% 915% 1s.9% DO I a y49,999 $550,000 14.S-A 13.1% 11.0% 15.9% 0.2% 4416 1215% 37.6% 019% 117.4% �35.8 1. $74,!�5,3 M 6'A 10.0% 213% 7515%, 133% 6.0% 234% 23-8% $75,000 to $99,999 jun 10.27% 5.29% ls.a% 13.0% 9.51% 17.2% 10.8% 15.6% 1$200,ow IQ $349„999 9L59% 141% 9.n9% 19A56 4,5rS 2149% 702% 0.616 7,6% $1 "O'OUG to $139.999 v% 511UI of morn 1. 3.0% :1 .796 1111 4.6% O,ON U% 2.65% IVA 3.05% M.d la n lmecrnc jdpvN ") 48,82.9 48.757 137.9.11 66,921 29,366 19,279 24,457 46,413 44,593 SII U.5. Cc n:s us Ru uep u, 20119 -Ml 3 $-Yea r Arm ricari Ca mmun Ity 5urve y HALEY & AWRICH INC, 3 More 3 Cohn Inonme Com ua Track.x& U512015 Table 4 Demographic Stitlsttm Far C&nsus Tracks in the Vicinity of tire Br➢clhaven I'Alne Chatham Demographics County, North, Cormus Tract 2.06 Chatham County, North, Uralln a ITOW 9S.2% JAGE 72,3% 6n'dLr 5 years V% 4D% 5 to 17 years 15.5% 1.4.9% �9.4% 18 to 24 years 6.2% lmrA 25, to 44 year$ 23,0% p28.2% As to 54 years 14,5% 1173% 55 to 64 years 14.9% 115,4% 65 to 74 year$ 12.1% 174% 75 years and over 9.2% 18,4% Modlan ap (years) 44.8 14AS RACE AND HISPANIC OR LATINO ORIGIN 174% Due rare 98 z's 19519% white 179.07£ 478.756 Weak or AfrIlcan Amorican 123.0% 46,9% Amorlmn Ind1sor and Alaska Native 10.4% 0.0% Asian ri 4% 10.1% NatIve iiawauanand, OtherPadfic Islander a0% 0.0% Some other raw 4.4% 3.1% 11.1% Twwournnorerace5 I'M 112.8% lHispanictsr Latin* onflin (of any race) 15,2% lWhilte alone, not Hispanlc or Latino 7x,4% I78.06 source; U 5. cemus Bureau, 205-2011 5-YcarAMrJ,,an C0mnjUnhy5UTV,,yr Pogo I a] I U nstj g Tract 207.02 Ce nsw Ttact 30.x7.101 Unsus Tract IOU2 Census Tract MW Census Tract 534,13 Chatham County, Lee County, North Lee County. North wake County, North Wake County, North North Carolina Carolina Carolina car olln 19 CarsAlrus 3,864 10.2% 7.9% 45.0 4'.5BB 7.3M 1312% 12.6% 23.1% 16.0% 12.2% 9,5% 6A% 41.7 198,276 9S.2% ms% 72,3% 23.4% 24,0% 104% 1,8Ya 5.2% 22,2% 34.2 381 lmrA 01014 9417% 4.0% 91 856 L5% 9.1% 9.9% 876.8% 65,2% 4,04 6,973 S'2M (510% 9.5% 5.6% 115.1% 23.4% 24,0% 8,5% 3.6% 5.2% 22,2% 34.2 381 14,075 97'.M 9417% 17.4% 10.7% 8-0% 6.5% 519% '5.4' 8,991 0.7% 2'.195 42A 34.2 381 97.0% 97'.M 9417% 72.5% 05.2% 18,21% 9.1% 9.9% 14,4% 0.7% 0.4% 10.5% 110% 2.2% 174% 017% 1D.5% 3.0% 12.4% 1 5.9% 12.3% 13'%; 4A% 179.6% 75.3% HALEY ek ALDRICH, INC. TA, Wm 413rttkhnwen EicmographNCS.Cer 9u9 Trickn.xissx UVW01 6 Page 1 of I Table 5 Employment Statistics for Census Tracts In the NAcliilty of the Orickhaven Mine HALEY IS ALDRICH, INC, Table 5 Bdckhaven.EmpPoymontCoinsus Trodks.xis 61522015 CeTISLIS Tfad : Census Tract Census Tract Census7ract Census Tract Census' Tract 206 Chatham Ca u" 207.02 Chatham: 307. 01 Lee 307.02 Lee 532.07 Wake 534,.13 Wake Employment Chatham County, Mirth Carol Ina North Carolina County, Nnrth, County, North County, North Cauntyu North County, North Carolina Carolina Carolina Carolina Carolina EMPLOYMENT STATUS 58.2% 59.5 % 9 V. -69.3% 64-16% unemployed 5.7% 5-1% Szx. 7.(W. �7.5% lTG% 5.495 i[NDUSTRY civilian employed population 16 years 28,895 2'r'40 2,170 �11819 31349 Z364 and over Agriculture, forestry, fishingand 2.4% 1.99; 6.2% 2.419 6.2% 0.591. 1.79E hunting,„ and mining Construction 7.7% 1113% 4.195 5,4% 7.396 6396 t 3,69; manufacturing 13.794 13.4% 10,146 24.9;%� 79,6% 13,�7t 17496 Wholesale trade 2594 12% 4,7% 5,414 4.036 4.0% Q% Retail trade 5.5%, 8.7% 61% 1.1.5% 8:2% �811% Transportation and warehousing, l and utilities 5,1%, 2.3% 4.0% 1.6% 1.8y. 2.9% GA% Information 1-1% 21% 100% 0.6% a-OF. S.D% '17% Finance and insurance, and real estate and renta I and leasing scientific, and 1Professional, mranagament, and adminrstrative and 11.796 1633E 18. 744. 7y. 6.0% 9.4% 14.2% 12.69E waste management services Esdoucc and healt h care aalllsnot tservices, and 26.196 27.2% 137% 21..6% 14,4% 22.534 16.2% Arts, entiqlairiment, and Tecreaflicm, 79% G W. 6.4% 7.1% 33%1. S. S T. 6 , 71y and arcommodatlon and food services Other services, tycept public administration 5,9% 7,0% 10-4% 3 5 a 4.,6V. 4.91% 4.5% I Public ttdm i m i tratiar 3'8% 4.546 13% 51211. 5.7% 63% 3.8% Sourcc U.S, Census Bureau, 2009-2013 5-Year American Community Survey HALEY IS ALDRICH, INC, Table 5 Bdckhaven.EmpPoymontCoinsus Trodks.xis 61522015 P0911 1 al I Table 6 111EUMe SWIMIZ3 fOECEH5135 Tracts IA the "Chlity Oft he 94,411AVOn Mine HALEY & ALDRiCH, INC. TMAL 6 BrIrJthnven.Inmma.CLnmgs Trvck.mlsx W14015 ChatharnCounty, CermusTIW206 Census' Tract 207.12 Certsus Troct 307.131 Census Tract Census Tract 532,07' CensusTrM0534.13 Northcarolwa Chatham county, Chatham county, Leg County, North 3017,02, Loa wake County, worth Wake Courav, North Household Income North Carolina North carouria Carolina County, North Carolina Catalina t4ii 1,689 Less than S 10,000 518% 61.4% �7,7% 73% 7.6", 1�7% 11.5% 1$10.,000 to $14,909 5.0% .6% 5A% 3.7% 6�20M 0.7% IS 15,,000 to 524, 999 M 11'5% 5-790 1633E 930301 1.5% 1$ 25,000 to S34,0,0 10,4% IZS% ILAIX B.5% 10AM 2,4% [s 35,000 to $49,991 12.2% 131% 12.2% 274% 10.90% 11.6% IS SO,rxio to $74,050 2018% 18,93 23.9% 11.4119E 17,5% 1$75,WD to $99,995 11-7SC 10.2% 1018% M 610% 16.06 MW J$ 10%0W to $14 9,999 13.7% 241% 13-7% 816% 1111. 7413% 3311% 24.6% lsiso'amto 5199 '999 5,1% 1111.. 2.3% 1.9% 2.2% 2,2 D% 8.2% 111.5% 2uoxw or more 5.4% 3.11% 5.9% 123% median 41 come WcManl 57,091 48,257 55,975 46,45:3 44.598 1111 1111... 92,535 Soufce: U. Census Hurea u, 20305.2013 5 -Year American CommuNty Wrvey HALEY & ALDRiCH, INC. TMAL 6 BrIrJthnven.Inmma.CLnmgs Trvck.mlsx W14015 Page I of 1 Table 7 Race and 6 f thnicfty Data for Census Block Groups Within a S-Mile Radfu 5 of the StIckhaven amd Colon Mines 2010 Census Race and Eth n [city Data 10) Blacl% or Total 2010 Percent African Percent Hispanic Percent Percent Minority Census Block Groups Total White j%j American (%) or Latlno N other N 1%) ��North CaroMa 9,5 6'223'9951 65-6 2,019,854 21% 800,120 81% 1 491,514 5% F--3v-A-1 kftaOiarnCounly, North Carolina 45,1&9 7114, 8,272 13-A 8,228 13% 1,820 3% 29% Lee County,Nonh Carolina 34,32I 59% 11,369 zo-A 10,576 12% f 1,6W 3% 41% Wake County, North carohna 5 60,536 1 6296 1 182.793 20% 87.922 10% 69,742 8% nice]( Gm ups Within a Five Mile Bantus of Bridth aven Facility glack Group 2, Cerum Tract 206� 1,436 67% 580 21% 102 5% 38 2% P% Chatham County, North I - arol ena 2,156 fl Block Group 2, Census Tr I'm 1,125 85% 121 9116 49 4% 28 Z% 15% chatharnCounty, North Carolina I Wad Group 3, Census Trace 207.02, 2,010 664 661.16 242 2414 so 8% 24 2% :Chatham CountV, Northcarohnn I a-7-1 � !flock Group 1, Census Tract 307.01, IIE25 1,421 78% Ise 9% zo 5 11% n 2% 22% Lee County, North C.WoNnit Illock 2, Census Tract 307.01, ter C '�rou' North Carolina 2,919 1,SS4 67% 596 20% 305 10% 81 a,% 33% 'I.ek -urrhyp 1, Census Ttact 3107.102, I'692 1,589 84% IOU SIA 162 S% 32 Z1% 16% Lee County, North Carolina Block Group 1. Census Tract 532.07. 2,241 =9 7616 26,0 12% 221 10% 51 2% 24% awake County, North Carolina �Slock Group 2, Census 7retA 524-I3. 1,2B4 3092 85% 5VA 5.3 4% 15% ake County, North Carotna lilack -Grcrups W16iR i Five MIM Radius of Colon Facility r I C:k Gra up 2, Ce nsus Tract 206, 21156 27% 102 5% 38 2% 331% iatharn County, North Carolina 1� �"- 1, -;-4 lock Group 1, Census Tract 901.01, e County, North Carolina 974 225 21% 176 IRV, 12 3% 44% r1e IMock Group 2, Census Tract 301.01, 1,321 1 604 461A 33.9 24% 364 28% 24 3% 54% tee County, North Carolina �IQck Group 3, Census IFaa KL01' 2,143 1,402 65% 349 16% 299, 14116 4% 1 85 Ire County, North Carolina Re Group, 1, Cersus Tulsa N)I-M, 1,673 11528 75 4% 44 3% 26 2% County, North Canolina �ieck Group 2, Cansuis Tract M1.02, 1,841[ 1,487 811% 1,40 8% 163 9% 51 3"6 e County, North. Carolina NNN �tock Group 1, Census Tract 302, Lee ouwny, North Carolina so 3010 315% 219 25% 322 37% 19 256 65% hock Group 2, Census Tract 302, Lee 1,474 270 18% 4911 33% 690 46% 34 2% 82% ounty, North Carolina Tock Group 3 Census Tract 362, 1,312 164 13% 357 27%, 761 58% go 2% 98% County, North Group 1, Census Tract 303, Lee 1,373 134 10% 11053 77% L57 11% 29 2% 9095 County, North Carolina Block Group 2, Census Tra or 303, Lee Purity, North Carolina 1,:64 23D 12% 1,649 SW S46 29% 39 2% 91% ock Group 1, Census Ira ct 304.01, 1,537 S79 38% 476 31% 431 28% 5,1 3% 62% �Ie County, North Carolina lock Group 2, Census Tract 304,01, 664 45% 26 2 1,487 542 36% 255 17% % rLee Coiuity� North Carolina -"% �lock Group 2, Census Tract 306-01, 1,427 1,145 80116 262 11% 76 5114 114 31A 20% . County, North Carvkna rlock Group 1, Census Tract 307.01, 1,1315 1,421 78'6 Iss 9% 205 11% 31 2V. e County' North CaroNna L�!- .re Group 2. Census Tract 307.CL 2,936 1,954 67% 595 20% 305 I1V16 at 3% L�-% G tu County, North Carc4nz lock Group 1, Cemus Tract 307.02, 1.802 1,568 84% 100 5% 162 916 32 2. e C.,."W, - 6 L Ncrth Carolina LL Notes: Sold denotes potential emkiannnentailu5tice area, m horitV populationswere Identidled where ttih,en (1) the minority poputafion exceeds 50 percent; or (2) the minority population percentage of 1hc affected area 1, ten Percent higher than the munerity popwriation percertagt county atmrage (a) The racial and ethnic categories provided are further deirinad as: Whitt jWhita alone, not Hispanic or Latino): Black (clack or Afrlcarr Amerlcan, alone, not Hispanic or Latina); Other (American indion and Alaska INatlwe alone, not HISPIMIC or Lalino'; Asian, not Hispanic or Latino; Nattwe Hawafian and Other Patific Islander alone, not H15pa nlc or il., l in o,, some o0wr race atone, nut Hispanic or Latino; I wo or more races, not Hispanic or Latlno)� Hispanic. [Mspamc or Lafina; Persons of Hispanic origin may he nF any race). Sour": u.s, census Bureau, Census 2010. HALEY & ALDRTC H, INC. Table I Race TaWe.xIsx 16411r2 0 15 Page, 1 of I Table 8 Poverty Data for Census Block Groups Within a 5-Mile Radius of the BrickhaVft and Colon Mines HALEY 1S ALDRICH,, INC. Table 8 Poverty Tabla.Asx 6ib/2015 Below Poverty At or Above Census Brock Groups Total; Level Percent 1%) Poverty Level Percent (1%) Nquth Carolina 9,396,989 ...... .. ..... 1,643,389 17VP 7,753,600 1311 Chatham County, North Carolina 64,021 7,920 12% SGJOI 88% Lee County, North Carolina 57,,587 1.0,863 199' 46,724 81% Wake,Coun 11Y, North Carolina 906,662 99,679 11% 806,983 893x, Block Groups W Ithin a Five M fle, Radius of Brickh avan Facility 6'1'o' E'k,Group 2, s Tract 205, Chatham' County, North Carolina 2,643 118 4%. 2,525 969, Mock Group 2, Census Tract 207.02, Chatham County, North Carolina 1,246 164 13% 1,092 8 TA Block Group 3, Census Tra ct 207 02, Chatham County, North Ca rol Ina 974 73 7% 9101 93% Block Group 1, Census Tract 307,01, Lee, County, North Carolina 1,888 237 13% 1,651 87% Block Group 2, Census Tract 307.01, Lee County, North Carolina 2,516 302 12y, 2,214 88% Block Group 1, Census Tract 307,02, Lee County, North Carolina 1,952 305 1G% 1,,647 84% IBIoEk Group 1, Census Tract 532-07, Wake County, North Carafina 2,370 320 243' 21,050 8010 ]Block Group 2, Census Tract 53413, Wake County, North Carolina 1,141 33 3% 1,111 97% Block Groups Within a rive mile Radius of Colon facility Block G'ro"'tj p '2',-Censu"s _Tr'a"c t'2" 0 6',"C"h"a' t-ha" m'­C"'ot"A'n't'y'', -No r't"h' Ciro' lini, . . .. ...... ......... 1113' 41% ......... .. .... .... 2 525 ..... . .. .... 9530 "Block Group 1, Census Tract 301.01, Lee County, North Carolina 794 206 26% 588 74% (Block Group 2, Census Tract 301.01, Lee County, North Carolina 1,185 221 19% 965 81'36 Black Group 3, Census Tract 301.01, Lee County, North Carolina 2,099 375 1830 1,724 12% Block Group 1,, Census Tract 3101.02, Lee County, North Carolina 1,652 66 4% 1,586 9696 Block Group 2, Census Tract 301,112, Lee County, North Carolina 2,994 21 1% 1,973 99,96 Block Group 1, Census Tract 302, Lee County, North Carolina 737 330 48% 407 52% Block Group 2, Census Tract 302, Lee County, North Carolina 1,777 433 24% 1,344 76% Black Group 3, Census Tract 302, Lee County, North Carolina 1,416 409 29% 1,037 71% Block Group 1, Census Tract 303, Lee County North Carolina 1,261 544 43% 717 57% JBlock Group 2, Census Tract 303, Lee County, North Carolina 1,396 6•3 49% 713 51% Group 1, Census Tract 304.01, Lee County, North Carolina 1,812 649 36% 1,163 64% PBlock ack Group 2, Census Tract 3C4.01, Lee County, North Carolina I'187 525 44% 662 5676 ]Block Group 2, Cennis, Tract 306.01, Lee County, North Carolina 1,617 79 5% 3,,538 95% 113lock Group 1, Census Tract 307.01, Lee County, North Carolina 1,888 237 13%; 1,651 87% IBlock Group 2, Census Tract 307.01, Lee County, North Carolina 2,51G 302 IZ% 2,214 88% Block Group 1, Census Tract 307-02, Lee County, North Carolina 11952 305 25% 1,547 844. Nctesu Bold denotes potential environmental Justice area. Viis analysts considers any census block group with a percentage of Individuals below poverty level that is above the percentage below poverty level is above the county average by five percentage points or more to be low-income. Source: U.S, Census Bureau, 2009-2019 American Community Survey 5-Year Estimates. For populatlon for whom poverty status Is determined, Income In the past 12 months below poverty level or at or above poverty level, HALEY 1S ALDRICH,, INC. Table 8 Poverty Tabla.Asx 6ib/2015 I M, I no 61 Table 9 Summary of Census Block Groups and Potential Environmental Justice Communities Within, a S-Mlle Radius of the Brickhaven and Colon Facilities Notes: An "'X" denotes potential environmental justice area. See Tables 7 and 8 for more information on the identiflcation of potential environmental justice communities based on minority status and/or income levels. HALEY & ALDRICH, INC. Table 9 Sumrnary.xlsx 6/5/2015; Potential Potential Environmental Environmental Justice Community Justice Community State County Tract Block Group Based On Race Ba,s'edI on Poverty Block Groups Within a Five Mile Radius of BrIckhaven Facility it North Carolina Chatham 20600 2 North Carolina Chatham 20702 2 North Carolina Chatham 20702 3 North Carolina Lee 30701 1 North Carolina Lee 30701 2 North Carolina Lee 30702 1 North Carolina Wake 53207 1 North Carolina Wake 53413 2 Block Groups Within a Five Mile Radius of Colon Facility North Carolina Chatham 20600 2 North Carolina Lee 30101 1 x North Carolina Lee 30101 2 it North Carolina Lee 30101 3 North Carolina Lee 30102 1 North Carolina Lee 30102 2 North Ca I rolina Lee 30-200 1 Si x North Carolina Lee 30200 2 x x North Carolina Lee 30200 3 x I x North Carolina i Lee 30300 1 x i x North Carolina ;Lee 30300 2 x p x North Carolina Lee 3,0401 1 it x North Carolina Lee 30401 2 x x North Carolina Lee 30601 2 . . . . . . . . . . . North Carolina ILee 30701 . 1 . . ......................... ...... North Carolina Lee 30701 2 North Carolina Lee 30701 1 Notes: An "'X" denotes potential environmental justice area. See Tables 7 and 8 for more information on the identiflcation of potential environmental justice communities based on minority status and/or income levels. HALEY & ALDRICH, INC. Table 9 Sumrnary.xlsx 6/5/2015; LEGEND PROJECT ARC, LEE COUNTY 0 BROWNFIELD SITE HR is 3 "OWL—mosm -------- j SCALE INMILES Ha[ey & Aldrich. Inc, COLON MINE AND BR [CKHAVEN MI NE R ECILAMAn ON P ROJECTS H EE AND CRATHAM COUNTIES, NORTH CAROLINA 96"'6ti L LOCATION OF BROWNFIELDS WITHIN LEE COUNTY JUNE 2m FIGURE 1 61512015 Figure 2A Abandoned General Shale Plant Site t _ 5 � Figure 2B C &D Debris Remaining at the Site Haley & Aldrich, Inc. 6/5/2015 Census" r Tract , 5 MILES 20i'.02 Census. • w. Tract / 206 ' o `1 F / i 1 � r � _ ! Census Tract , ! -- 307,.01 1 1 MILE I Census —_ /_. 1 Tract J 306.01 •'\ - - - 1.1.1!.+ � • ' I Census ' Tract Census 307,02 / Tract 301162 / Census / Census; '� Traci: Tr Census 1 Tract a 302' ct x- 4h30'1.01 ::�, ;1# „-: Figure 4A Wood Products Manufacturing Plant E7 Figure 4B Truck /Rail Traffic along Corinth Road Haley & Aldrich, Inc. 61512015 U005 MILES / / ' - Census .�1P Tract /Census 207.02 Tract < 206 t "' .- f 1 MILE If < I Census _ h' 1 Tract_ ' I 307.61,. '%b 8� ` GensuS ' • 41*4 Tract 00,00 8i i 307.02 / f Census Tract 8 � 710.02 Census Tract 711.01 COLON MINE AND BRICKHAVEN MINE RECLAMATION PROJECTS v LEGEND % �y RIIC+H LEE AND CHATHAM COUNTIES, NORTH CAROLINA a' ® PROJECTAREA ® CENSUS TRACT CENSUS TRACTS WITHIN A 5 -MILE d RADIUS OF THE BRICKHAVEN MINE 0 0.5 1 1.5 a 1 SCALE IN MILES JUNE 2015 FIGURE 5 w O Haley & Aldrich, Inc. 615!2015 Tract 020702_, Block Group'3- 5 MILES Wd r f op Tract 020x6,_00 Block Group 2 / Tract 030701 / Block Group 1 4 0 / Tract 030701 I 1 MILE Block Group 2' L { / or 1 _ 1 Tract 030601 ' Block•Group 2 j A-1 4%b 40 Tract 030702 Block Group 9 Tract030101. a \ : Block'Group 1 I Tract 0301021 Tract.030401 c Block Group 1 Tract•030200 Block Group 2 Y � Blo'c`k Group 1 / $' ♦ , Tract 030401 / Block Group 1 w Tract 030101 / " Tract030601 Block Group 2.Tract_030200 Block Group 1. BlocklGrnjp -2 g Tract '03010'2 Tr5cV030200 Block Group 2 Block i Group 3 t Tr c 030101 Tract"030300• I act 030602 rd +--'= Tract 030702 Block Grdu 3 Block ?Grow 12 8 ck Group 2,,,;.' "' bP' P -, — — ! -- Block Group'. Tract030300 Tract 030102 lc�6 • Tract .'030 BlockcGroup3l: r : � Block Group 3 Bfock Group:2 – Tract 030401 - f0 Tract 030402 Tract 030702 Tract 030602 Block Group 1 Tract 030402 B1oGis �tfL7UA 3 Block Group 3 a o LEGEND a ® PROJECTAREA 32 ® CENSUS TRACT O r j�� 'CH LEE AN MINE AND COUNTIES, E , MINE RECLAMATION PROJECTS °o � Lj��r LEE AND CHATHAM COl1N•I'IES, NORTH CAROLINA CENSUS BLOCK GROUP o' ENVIRONMENTAL. JUSTICE GROUP s POVERTY CENSUS BLOCK GROUPS WITHIN A a 5 -MILE RADIUS OF THE COLON MINE e RACE 0 0.5 1 1.5 w J SCALE IN MILES POVERTY AND RACE LL JUNE 2015 FIGURE 6 w Haley & Aldrich, Inc. 6/5/2015 Tract 020800 Block Group 3 i 5 MILES Tract 053413 Tract 020702 \ Block.Group 3 � _ y"--�- 4f f j 0 `��� Tract 020fi00 Block4Group 2 Y Tract 05320' Block Group 1 , Tract 030701 I, Tract 0207€12 ' Block Group 1 Block Group 2 1 M ILE � t a ' `4 i! Tract 030,701 Block Group 2 r 4 O y1 ` 4 �♦ Tract 030702 ♦ Block Group 1 / do Tract 071002 n Block Group 1 - � m I r a omw m 4 COLON MINE AND BRICKHAVEN MINE RECLAMATION PROJECTS LEE AND CHATHAM COUNTIES, NORTH CAROLINA u LEGEND ® PROJECTAREA CENSUS TRACT CENSUS BLOCK GROUPS WITHIN A s 5 -MILE RADIUS OF THE M CENSUS BLOCK GROUP 0.5 1 1.5 BRICKHAVEN MINE o N SCALE IN MILES JUNE 2615 FIGURE 7 o - Haley & Aldrich, Inc. 6/512015 5 MILES ' If, I MILE 00 ■ F. law, f j U, 00 0 4l Me '(4) " 4, 77, LEGEND PROJECT AREA RECEPTOR TYPE CEMETERY 2 in a, CHURCH 19 LIBRARY 8 41, MEDICAL FACILITIES 0 PARK IS POOL 7: SCHOOL UNIVERISTY a. Haley & Alddch, Inc. COLON MINE AND BRICKHAVEN MINE RECLAMATION PROJECTS H AND CHATHAM COUNTIES, NORTH CAROLINA 10H SENSITIVE RECEPTORS WITHIN A 5-MILE RADIUS OF THE COLON MINE 0 o's 1 14 SCALE IN MILES JUNE2015 FIGURE 8 61,512015 LEGEND RECEPTOR TYPE PROJECTAREA mr CEMETERY TRUCKROUTE C14UPCH LIBRARY 9 MEDICAL FACILITIES 5 M1ILES CCLC,N MINE AND SPICKHAVEN MINE RECLAMATION PROJECTS LEE AND CHATHAM COUNTIES, NORTH CAROLINA icii 0, PARK olp 0 POOL SENSITIVE RECEPTORS WITHIN A 5-MILE RADIUS OF THE 0 00 BRICKHAVEN MINE UINWERISTY 0 as 1 1.5 SCALE IN MILES JUNE 2016 FIGURE 9 Haley Sk 61512015 IN, y. imA I MILE %4 c9 5! dry 0010 4i 1 %* 00 LEGEND RECEPTOR TYPE PROJECTAREA mr CEMETERY TRUCKROUTE C14UPCH LIBRARY 9 MEDICAL FACILITIES 0-11I R� CCLC,N MINE AND SPICKHAVEN MINE RECLAMATION PROJECTS LEE AND CHATHAM COUNTIES, NORTH CAROLINA icii 0, PARK 0 POOL SENSITIVE RECEPTORS WITHIN A 5-MILE RADIUS OF THE 0 SCHOOL BRICKHAVEN MINE UINWERISTY 0 as 1 1.5 SCALE IN MILES JUNE 2016 FIGURE 9 Haley & AWrich, Inc, 61512015 (OMPR I. I I E I IS IV F 51A I �. FU, I LP� A t,l ' Haley & Alclnch, Inc Figure 10 North Carolina's Rail System 615/2015 i R J r ,NEW FALL I� P NP Jf / f MERRY OAKS 7 BON,SAL i MONCURE P BRICKFIAVEN v C MINE q s.r n CORINTH vo .s COHEN COLON COLON BRI KHAVEN MINE l: CLIMNOCK 6 LEI RICK lFACaAN" _ s POOLS COLON i EP I C3ii I R MONROE f""1'l RK " . pfiP i�p n�9v M1 .I . per G WONS.e PO R& � I j " COLON MINE ANDDRICKH'A NMAINE:RECE.Al�tA- MONPRu JEM LEE AND CHATHAM CCIUNTIES, NORTH CAROUNA LEGEND MCOLON MINE RAILROADS AND STATIONS IN THE a RICICHAVE I MINE VICINITY OF THE COLON AND 1151 STATION i3 1.5 3 I I I�`aKI"'IAVEN MINES RAILROAD u SCALE IN MILES JUNE2015 FIGURE Haley & Aldrich„ Inc, 61512015 > i) I 5 C Existing Rail Q r 0 r S) o o Q � Brickhaven Mine <j U Bridge 10 No Impact Propose Impact #12 Arch Culvert 90 LF 1 �C D u� �o Proposed Rail Total I mpadsSariford and Bridchaven \y Wet�ds(non- i sol ated) ��16ac \ Wetlands (i sol ated) 0.50 ac Legend Stream Proposed Grades Linear Wetland Existing Unpaved Roads Wetland Property Boundary Stormwater Basin SW Basin grickhav ickhaven Mine Permit # 19 -04 Culvert Drawn by: RLNk4r-ah 302.15; CEC Proje Data Source: C and HDR / Chatham County, North Carol i na lJ J 0 O Moncure Holdings, LLC Site delineated by others. Verified: October 2014 - Updated Permit Map p\\mNam i Property Boundary C°J on npact #13 .002 AC 101( BRI CKHAVEN DATA TOTAL PROJECT AREA +/- 332 ac G JURISDICTIONAL WATERS OF THE US > Streams 43834 If Wetlands (non - isolated) 3.98 ac Wetlands (i sol ated) 0.50 ac Open Water 0 ac JURISDICTIONAL IMPACTS � i � � Streams 2,5401f _..I Wetlands (non-isolated) 0.05 ac J Wetlands(isolated) 0.50 ac COpen Water n/a AVOIDANCE/MINIMIZATION �, Streams 2,2941f (47 %) Wetlands (non - isolated) 3.93 ac (99 %) Wetlands (isolated) 0 ac (0 %) r Open Water n/a r 1, MITIGATION Streams EEP(1:1) 2,5401f WTI ands Impact #2 0.04 AC (4 small wetlands) Impact #1 320 LF IF I v wtorti, I I � / Impact #6 / 0.08 AC Isolated Impact #7 0.01 AC Isolated Lear Ler 224 South Grove Street, Suite F HenderSOnvi I I e, North Carolina 28792 r Impact #9 0.10 AC Isolated \l 1 v Impact #10 0.01 AC =J— Impact #11 0.02 AC Isolated i ( 0 250 500 11000 Feet Si to R an and I mpact M ap Figure 1b SANFORD DATA 1 F�stin8 48LF ._ Replamment SSOLF TOTAL PROJECT AREA +/- 425 ac JURISDICTIONAL WATERS OF THE US Streams 11,540 If Wetlands 18.70 Be Open Water 7.78 ac JURISDICTIONAL IMPACTS Existing Unpaved Road" 1 Streams 1,716 if Wetlands 1.11 ac Open Water 0 Be AVOIDANCE/MINIMIZATION Starmw SW Bas Mina Basin in Colon Mine Permit # 53 -05 Streams 9,824 If (85%) Wetlands 17.59 Be (94 %) Open Water 7.78 ac (100 %) MITIGATION Streams EEP (I:1) 1,716 If Wetlands EEP (1:1) 1.10 Be Sanford (Colon) Mine - Updated Permit Map Total Impacts Sanford and Brickhaven Streams 4,2561f Wetlands (non - isolated) 1.16 ac Wetlands (isolated) 0.50 ac Legend 1 F�stin8 48LF ._ Replamment SSOLF J Stream Proposed Grades Kai Unear Wetland Proposed CSX Rail Spur ` Wetland Existing Unpaved Road" 1 OPan Water I Property Boundary ® Starmw SW Bas Mina Basin in Colon Mine Permit # 53 -05 �\ \ General Mine Information Map - Sheets 1-4 (02.15.14) _ . Culvert Drawn by: RLN 06.02.15; CLt Data Source: Char h and HDI ..Impact #24 `. , Birelurd Rd ---� Existing 401-F Replacement 50LF r Net Impact 10 LF _ �.- Impact i r - Impact #23 48LF -�� Replacement 50LF — - Net Impact 2 LF VOW li rtl M % 1�\ 1 F�stin8 48LF ._ Replamment SSOLF J 2 LF ` r Use Existing crossing v, No Impact 0 250 500 1,000 =511111101111" I Feet Lee County, uearWacer Site Plan and Impact Map North Carolina 224 South Grove Street, Suite F Figure la Hendersonville, North Carolina 28792