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HomeMy WebLinkAbout20200504_ADI_ResponseMINING CHECKLIST FOR ROUTING Applicant's Name: 4 y al ra lj ICfJ�I (� �� { (&-fy ProjectName: f Applic./ Permit No: County: (�K (,7,� t t %1 Date Received i Reviewer: River Basin Name: ❑ New ❑ Modification (inside permit boundaries) El Modification (outside permit boundaries) ❑ Transfer ❑ Release ❑ Partial Release ❑ Additional Information ❑ Fee Needed: g ❑ Fee Received: $ Please route entire application package to: ❑ ! I )min it (f L. Regional Office (x complete copies; attach the "LQS Regional Office Mining Application Review Checklist" to one copy`and attach both the DAQand D WR "Mining Application Review Form" to the other copy; send both copies to the Regional Engineer) Date: Routed 6 1(f r . Qi ! Rec'd ❑ Division of Water Resources Date: Routed Rec'd ❑ NC Wildlife Resources Commission Date: Routed Rec'd ❑ US Fish all Wildlife Service Date: Routed Rec'd (Only new applications and modification requests that add land to the permit) Please route first 3 pages of the application and any location maps to: ❑ Division of Parks all Recreation Date: Routed Reed ❑ NC Geological Survey Section Date: Routed Reed ❑ Division of Marine Fisheries Date: Routed Reed ❑ Division of Soil all Water Conservation (plus LEA) Date: Routed Rec'd (Only new applications and modifications requests that add land to the permit) ❑ Division of Archives dT History Date: Routed Rec'd (Ordy new applicants) ❑ Other: Date: Routed Rec'd ** Suspense Date for Comments: (no later than zf days from receipt) ❑ Please note the following: i r r' f ROC K 525 Quarry Road —PO Box 988 Mount Airy, NC 27030 To whom it may concern, u "arat PRODUCTS CO. Office 336-7864693 Fax 336-786-2189 We at Ararat Rock Products Co. would like to make a modification to our Eden Quarry mining permit. The modification request includes the addition of 16.8 acres to the Southeast of our current permit boundary in the direction of the town of Eden. This proposed acreage will be used for the expansion of our current Eden Quarry West Pit. Our current consumption rates dictate that we must uncover new reserves in order to supply demand. We do believe that at this point the material and information that we will be providing you in this permit will satisfy the department's request. We appreciate the help that we received from you and some of your associates regarding this matter, the information that we gained was very helpful. In reference to the letter sent to us on February 25 2020, please review the following documents regarding the concerns and additional material and information required for the approval of our mine modification. To best of my knowledge, our mining operations and the activities proposed in our mine modification request should in no way hinder or damage the wildlife in or around our quarry. We have not and will strive not to damage or cause harm to the area's wildlife or its habitat. As a matter of fact, we have on the mine property a large, healthy wildlife population that includes Whitetail deer, wild turkeys, coyotes, black bear and several ponds teaming with fish. In regards to the concerns of NC Wildlife Resources, we requested a site visit so the department could evaluate the site and provide its own recommendations. Please review the attached comments from the Wildlife Department visit. We will certainly consider their recommendations in regards to the type of vegetative mix for the buffer. Our future reclamation plans include turning the mine pit into a lake for aquatic wildlife and providing habitat and conducive conditions for the local wildlife populations. I have also attached copies of the signed return certified mail receipts where we have notified the adjoining land owner and the County Manager. Also please note that we have modified the overall general mine map to include all the existing and proposed stockpiles, roads, processing areas, mine . excavation limits etc. We have also included the wetlands, buffers and waterways as well as -an updated acreage chart. All the additional erosion and sediment control issues that were listed are addressed accordingly on the updated erosion/sediment control maps and the attached Calculations and Hydrological Model Routing (Phase 1 and 2). In reference to the activities and operation of our requested mine modification, there will be no effect on the environment outside of our permit boundary from sediment erosion. The manner that we shall remove the overburden will dictate that all sediment shall flow through the catch basin or will drain internally once overburden is removed. I hope that our preparation of the information required by your department is in all ways adequate and easy to interpret. I also hope that our hard work and attention to detail is evident in the material provided. I would like to thank you in advance for the expedient and fair manner with which I feel sure your departments will process our application. Sincerely,_ RECEIVED U 4 2020 William Branch LAND QUALITY MINING PROGRAM '%W .. ■ Complete items 1, 2, and 3. ■ Print your name and address on the reverse so that we can return the card to you. ■ Attach this card to the back of the mailplece, or on the front if space permits. V4aIL illllllllllllllllllllllllllllllllllIIIIIIIII 9590 9402 4457 8248 2188 67 L V PS Form July 2015 ■ Complete items 1, 2, and 3. ■ Print your name and address on the reverse so that we can return the card to you. ■ Attach this card to the back of the mallpiece, or on the front if space permits. 1c-JArticle Addressed to: I,G' j GJ,�.tk}r(lin`. Ctl.rrr//'.inVVvJJJ///,,, IIIIIIIII IIII Ilill Iilll IIIIIIIIIIIIIIIIII I III 9590 9402 4457 8248 2187 99 Number A. at7atura E3 Agent B. R lved by (Printed Name) 10. D. is delivery address different from Item 17 U Yes If YES, enter delivery address below: ❑ No 3. service Type o Priority Mail Express® 7 Adua Signature ❑ Adult Signature Reanloted Delivery ❑ Registered MallTM ❑ RRegi erred Me Restricted D Carded Mail® [3 Carded Mall liertdcled Delivery Ig Return Receipt for ❑ Collectollect on Delivery ❑ Collect on Delivery Restricted DeliveryEl Merchandise ❑ Si nature ConflnnatbnTM Mall ion Signature confirmation Restricted Delivery [I Insured Mail Restricted Delivery Domestic Return Receipt ; 0 E3 Agent D. Is delivery address different from Item 17 u res If YES, enter delivery address below: ❑No 3. Service Type [IPriority Mall Express® ❑ Adult Signsttl- CI Registered MaIPe ❑ Ad re Restricted Delivery ❑ Reg[at ered Mall Restricted dified Mall® Delivery ❑ Cemhed Mall Restricted Delivery D Return Receipt for ❑ Collect on Dellvery ❑ Collect on Delivery Restricted Delivery Merchandise O Signature Ccngrmation- ❑ Insured Mall ❑ Signature Congnnaaon ❑ Insured Mall Restricted Delivery Restricted Delivery (over$500) -.. PS Form 3811, July 2015 PSN 7530-02-000.963 Domestic Return Receipt ►—. ..PO, ® North Carolina Wildlife Resources Commission Gordon Myers, Executive Director MEMORANDUM TO: Brenda M. Harris Mining Program Secretary Land Quality Section FROM: Olivia Munzer Western Piedmont Coordinator Habitat Conservation DATE: 30 March 2020 SUBJECT: Site Visit at Eden Quarry — Ararat Rock Products Company, Rockingham County, North Carolina. Permit No. 79-07. On 13 February 2020, Olivia Munzer with the North Carolina Wildlife Resources Commission (NCWRC) provided comments to the NC Department of Environmental Quality (NCDEQ) Division of Energy, Mineral, and Land Resources (DEMLR) regarding the permit modification for the Eden Quarry located in Eden, Rockingham County, North Carolina. These comments were provided in accordance with provisions of the Mining Act of 1971 (as amended, 1982) (G.S. 74-46 through 74-68 15 NCAC 5). Ms. Munzer used aerial photography, topographic maps, and Natural Heritage Data for the permit review. The site appeared mostly forested, and it flows to an unnamed tributary to Dry Creek. Dry Creek flows into Cascade Creek in the Roanoke River basin. Downstream of the site are known records of the federal and state endangered James spinymussel (Pleurobema collina) and Roanoke logperch (Percina rex) and state endangered green floater (Lasmigona subviridis). We have known records for the federal and state endangered smooth coneflower (Echinacea laevigata); state special concern Carolina birdfoot-trefoil (Acmispon hellen) and American barberry (Berberis canadensis); and the state significantly rare southeastern bold goldenrod (Solidago rigida var. glabrata) near the site. For these reasons, NCWRC had concerns for the direct and indirect impacts the mining operation would have on federal and state - listed species. Ararat Rock Products Company (Ararat) contacted Ms. Munzer in response to her comments provided to DEMLR. On 16 March 2020, Ms. Munzer visited the area proposed for addition to the Eden Quarry. At the time of the site visit, the site had been cleared and seeded (see Photograph 1). Minimal water was flowing into the culvert located along the west side of the access road to the mine. Ararat had constructed a rock pipe inlet protection structure around the culvert (see Photographs 1 & 2). On the east side of the mine access road and railroad tracks, a plunge pool occurs at the culvert outlet. Based upon a cursory glance, it appears that surface water likely accesses the unnamed tributary to Dry Creek only during higher flows (see Photograph 3). Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 Page 2 30 March 2020 Eden Quarry Modification Permit No. 79-07 Based upon the site visit and the current condition at the site, it is unlikely the project will have a significant impact rare, threatened, or endangered aquatic species and other aquatic resources if erosion and sediment control measures conform to the High Quality Water Zones standards stipulated in the NC Department of Environmental Quality Erosion and Sediment Control Plan (https:Hdeg.nc.gov/about/di visions/energy-mineral-land-resources/energv-m ineral-land-perm it- guidance/erosion-sediment-control-planning design -manual). We also suggest the following recommendations. 1. At the time of the visit, the soil around the rock pipe inlet protection structure was not vegetated. Due to the presence of federal and state listed species downstream of the project, we recommend a 50-foot buffer of native vegetation buffer planted around the culvert to reduce sediment transport and pollutants in stormwater runoff. A vegetated buffer can minimize impacts to aquatic and terrestrial wildlife resources, water quality, and aquatic habitat downstream of the site. 2. Native plants are preferred and recommended for revegetation and reclamation activities. Non-native plants should be removed from the seeding schedule. Shrub lespedeza and sericea lespedeza are invasive and/or non-native and should be avoided. Consider an alternative mix of red clover, creeping red fescue, prairie dropseed, and a grain, such as oats, wheat, or rye. Specifically, this project would be ideal for planting native, wildflower seed mixes that will create pollinator habitat within the reclaimed areas. Pollinators are some insects (i.e., bees, moths, and butterflies) and birds that play an important role in the reproduction of flowering plants, which produce many fruits and vegetables. Habitat loss, disease, and other environmental changes have caused a decline in pollinators. Please see the attached list of suitable native plants for revegetation and reclamation. 3. Sediment and erosion control measures should use advanced methods and installed prior to any land - disturbing activity. The use of biodegradable and wildlife -friendly sediment and erosion control devices is strongly recommended. Silt fencing, fiber rolls and/or other products should have loose - weave netting that is made of natural fiber materials with movable joints between the vertical and horizontal twines. Silt fencing that has been reinforced with plastic or metal mesh should be avoided as it impedes the movement of terrestrial wildlife species. Excessive silt and sediment loads can have detrimental effects on aquatic resources including destruction of spawning habitat, suffocation of eggs, and clogging of gills. If I can be of further assistance, please call (919) 707-0364 or email olivia.munzer Owngwildlife.org. ec: William Branch, Ararat Rock Products Company James Crossingham, Ararat Rock Products Company John Ellis, U.S. Fish and Wildlife Service Thomas W. Russ, NCWRC u Photographic Log Eden Quarry Permit Modification NCWRC Site Visit —16 March 2020 Photograph 1. Looking west at site from culvert along access road to Eden Quarry. Rock pipe inlet protection structure around culvert in foreground. Photograph 2. Looking north at culvert, rock pipe inlet protection structure and access road to Eden Quarry. Photographic Log Eden Quarry Permit Modification NCWRC Site Visit —16 March 2020 Photograph 3. Looking northeast at the outlet of the culvert on the east side of the access road to Eden Quarry. �� 1*4� 4#0� Calculations and Hydrological Model Routing Erosion and Sediment control (Phase 1) Ararat Rock Eden Quarry of -3,;0 - &I aos A 17 �r Ovu I "Piri 00 - (� G -:? 71 -3 S121 d Q1, Ve Cs v-vl <L) — A�3 P9my Pmpa.Egl elmvb9 19ewa919mnt wlme eau 9dmn9.91®LLC .9.IY `... plFQm adbybJ Mvmdl rpNxfhC 2-YeaiV�-311' FO.]]fla WWbdmo0fl lwI rrob bMn odb.mr fmlli 9.0. . OSMM nays lnil.(d IAmn.r 9m9 lM PM GW dlmml bfel P.AmI 1 a 9m Saa fmn QOra 090 190 m 0o PNbomnM i+3iCl':9rReq: NAvC coma 1b am,21a 9NNIt.DOdlr.Sdmw MaidIRABPo Polltl 2P: 5.®mm9 Bnln 01 Inflow Area=26.700 ae .= Peak Elev=633.18' Storega=3.I16 of 1. A L S Z tl_b m S m e A SLmmb]for Pa V-..S.km Bp M MSMu= aim mmbmgrd.u, blapab=x1r tr4T.maw. tefalt�pl^valdyI 1 muiha77:,Vdmm• 7Wmtl. 8BA lPq7 11latlOmma mb OmM. 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NOM2 C f&Y.R� *m/ '��I M V!q ON Min^l➢SM�S1in IIFb1 YLVAfi Pond IP:&Wlmerde J.c RW Inflow Area=26.700 ac Peak Elev=634.19' Storage=4.421 of a 0[ 10 1I M M p E 6 W� 6f W 65 )a 1] W q q tl Nwl .� W `ter :ximmer size 1.5" 2" 2.5" 3" 4" 5" b„ g" hours 1,728 3,283 6,234 9,774 20,109 32,832 51,840 97,978 !�av 3.456 6.566 12.468 19.548 40.218 65.664 103,680 195,956 3 day 5,184 9,849 18,702 29,322 60.327 98,496 155,520 293.934 4dav 6,912 13.132 24.936 39,096 80.436 131,328 207,360 391,9121, 5 day R.64O 16.415 31.170 48.870 100,545 164.160 259.200 489.890 5 ay 10,368 19,698 37,404 58,644 120,654 196,992 311,040 587,868 ' day 12,096 22,981 43,638 68,418 140,763 229,824- 362,880 685,846 TECHNICAL SIZING INSTRUCTIONS �lUarou4, Determining the Skimmer Size and the Required Orifice for the Faircloth Skimmer® Surface Drain (dick hereto I open document) DETERMINING SKIMMER SIZE • Eight sizes available, ranging from 136" for small sediment traps to 8" for very large basins. • Size refers to the maximum diameter of the inlet. For example, a 4" Faircloth Skimmero has a 4" maximum orifice size. • Each Faircloth Skimmer® includes a plugand adjustable cutterfor making an orifice (hole) smaller than the inlet to customize the flow rate for the particular basin. METHOD USED The flow rates used in the calculator and listed in the chart are theoretical rates calculated using the orifice equation and the head on the inlet for each size skimmer. (Note that the head is different for each size skimmer.) Also, the head may vary slightly when the skimmer is in use, plus or minus, depending upon the depth of water and the position of the skimmer. The actual flow rate for the installed skimmer may be slightly less than calculated, especially when the barrel has a flat or low slope. Any variation in flow rate is considered insignificant enough to appreciably affect the drain time considering the number of variables involved. Therefore, the theoretical rates are used to simplify the orifice sizing process. ONLINE CALCULATORS ® CALCULATE FAIRCLOTH SKIMMER® SIZE Basic volume in cubic feet Days to Drain 307969 _ Volume is the actual or provided volume the you intend to drain, usually Number of Days to drain is usually determined by local not the required volume which is often smaller. if pool of water is to be or state regulations. Where there is no requirement 3 maintained between storms, do not include that volume. In some cases days is recommended. Keep in mind the quicker the sediment basin may be larger than required because It will be used as a basin is to drain the larger the skimmer required, In NC, permanent stormwater pond. assume 3 days to drain. A Location name: Eden, North Carolina, US A Gy Latitude: 3°, Longitude:-79.7437... Elevation: 633.57 fl'• 'source: ESRI Maps •• source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonnin, D. Martin, B. Un, T. Parrybok, M.Yekta, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF tabular i PF graphical i M@gg & aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence Interval (years) 000 10 25 50 100 200 500 1000 0.382 OA31 0.511 0.566 0.631 0.874 0.718 0.752 0.794 0.824 Sa11in (0.330-0.396) (0.394-0.472) (0.466-0.559) (0.517-0.618) (0.574-0.686) 0.610-0.734) (0.645-0.780) 0.675-0.820) (0.707-0.867) (0.728-0.900) 0.578 0.688 0.818 0.905 1.01 1.07 1.14 1.19 1.28 1.30 10 min (0.527-0.832) (0.631.0.755) (0.747-0.895) (0.827-0.988) (0.915.1.09) (0.972-1.17) (1.02.1.24) (1.07.1.30) (1.12-1.37) (1.15-1.42) 0.722 0.867 1.03 1.15 1.27 1.36 1.44 1.51 1.58 1.63 15 min 0 ( .65".790) 0.793-0.949) (0.945.1.13) (1.05-1.25) (1.16-1.39) (1.23-1.48) (1.30-1.57) 11 (1.35-1.64) (1d1-1.73) 11 (1.44-1.78) 0.990 1.20 1.47 1.66 1.89 2.05 2.20 2.34 2.52 2.64 30 min (0.904-1.08) 1 (1.10-1.31) 1 (1.34-1.61) 1 (1.52-1.81) 1 (1.72-2.05) 1 (1.85-2.23) (1.99.2.40) 1 (2.10-2.55) 1 (2.24-2.75) 1 (2.33-2.88) 1.24 1.50 1.89 216 2.51 2.78 3.03 3.29 3.61 3.85 80 min (1.13-1.35) 1 (1.37.1.64) 1 (1.72-2.06) 1 (1.97-2.36) 1 (229-2.73) 1 (2.51.3.02) (2.73-3.30) 1 (2.95-3.58) 1 (3.21-3.94) 1 (3.40-4.21) 1.47 1.78 2.25 2.81 3.08 3A5 3.82 4.20 -4 70 5.09 2•hr (1.34-1.60) 1 (1.63-1.95) 1 (2.062.46) (2.38.2.84) (2.80-3.35) (3.12.3.75) (3.43.4.15) (3.74-0.66) (4.15.5.11) (4.45-5.55) 1.58 1.93 2.43 282 3.33 3.72 4.13 4.53 5.08 5.50 3-hr (1 .45-1.73) 1 (1.77-2.11) 1 (224.2.66) (158-3.07) (3.03-3.62) (3.38-4.04) (3.72-0.48) (4.05.4.91) (4A9-5.51) (4.81-5.97) 1.96 2.37 2.99 3.48 4.15 4.70 5.20 5.87 6.71 7.38 B-hr 7 (1.80-2.14) 1 (2.18.2.61) j (2.74-3.27) (3.17-3.80) 1 (3.76.4.53) 1 (4.23-SA2) 1 (4.71-5.74) (5.18.6.37) 1 (5.83-7.29) (6.32-8.03) 2.37 2.87 3.63 426 5.18 5.90 8.71 7.57 8.82 9.86 12 hr (2.17-2.59) (2.64-3.14) (3.33.3.96) (3.88-4.63) (4.66-5.58) (5.29.6.37) (5.95.7.22) (6.63-8.13) (7.58.9.49) (8.33.10.6) 2.81 4.33 511 8.24 7.19 8.24 9.38 11.1 12.5 24 hr (2.61-3.04)) (4.02-4.67) (4.72-5.49) (5.74-6.70) (6.58.7.72) (7.47-8.83) (8.44-10.1) (9.81-11.9) (10.9.13.4) 3.30 3.99 5.05 5.91 7.14 8.16 9.26 10.4 12.1 13.5 2-day (3.08-3.55) (3.72.4.30) (4.70-SA2) (5.49-6.34) (6.61-7.65) (7.51-8.74) (BA6-9.92) (9.46.112) (10.9-13.1 ) ( 12.0-14.6 ) 3A9 4.22 5.34 6.24 7.54 8.62 9.77 11.0 12.8 14.3 3day (3.26.3.76) (3.94-4.55) (4.97-5.74) (5.80.6.71 6.97-8.10 ( ) (7.93-9.25 ) (8.93-10.5) �� (9.88.11.8 11.5-13.8) (�� (12.7-15.4 3.88 4.45 5.82 8.58 7.95 9.08 10.3 11.6 13.5 15.0 4-day (3A3-3.97) (4.15.4.80) (523-6.06) (6.11-7.08) (7.34-8.54) (8.34-9.75) (9.40-11.1) (10.5-12.5) (12.1-14.5) (13.3.162) 4.22 5.07 8.30 7.31 8.74 9.92 11.2 12.5 14 4 18.0 7 day (3.96.4.52) 1 (4.76.5.42) (5.90.6.73) (6.83.7.80) (8.13-9.31) (9.18-10.6) (10.3-11.9) (11.4-13.4) (13.0.15.4) (14.3.17.2) 4.77 5.72 7.02 8.08 9.56 10.8 12.0 13.4 15.2 18.7 10 day (4.48-5.10) (5.37-6.11) 1 (6.59.7.49) (7.57-8.62) (8.91-10.2) (9.99.11.5) (11.1-12.8) (12.3.14.3) (13.8-16.3) (15.1.17.9) 6A4 7.66 9.22 10.5 12.1 13.4 14.8 18.1 18.0 19.4 20-day (6.06.6.86) (7.21-8.17) (8.67-9.83) (9.81-11.1) (11.3.12.9) (12.5-14.3) (13.7-15.8) (14.9-17.2) (16.5.19.2) (17.7.20.8) 7.98 9.41 11.1 12.4 141 15.3 185-178 17.8 19.4 20.6 30-day F (7 .53.8.42) (8.91.9.96) (10.5.11.7) (11.7-13.1) (13.2.14.9) (14.4-16.2) (15..5) (16.6.18.9) (18.0-20.6) ( 19.0-21.9 ) 10.0 11.8 13.8 15 2 17.1 18.5 19.8 212 Z2.8 24.1 45 day (9A8.10.6) (11.2-12-5) (13.0-14.5) (14.4-16.1) (16.1-18.1) (17.4-19.6) (18.7.21.0) 1 (19.8-22A) 1 (21.3-24.2) (224-25.8j 12.0 14.1 18.2 17.7 19.8 21.2 22.7 24.0 F2I60-day (11.4-12.6) (13.4-14.8) (15.4-17.0) (16.8.18.7) (18.7-20.8) (20.1.22.4) (21.4-23.8) (22.&25.3) (24.1.27.1) (25.1-28.5) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence Interval. The probability that preciplta9on frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) Is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. � Please refer to NOAA Atlas 14 document for more Information. rr grapni'cai PDS-based depth -duration -frequency (DDF) curves Latitude: 36.50350, Longitude:-79.74370 111111116�.11 25 ...... ......... ..... ..... ........ .......---i........:....... c $ 20 ....:...:.....:.............. ...:.....:..... ' ' o. a v c 15 ....:....:.....:............. : U 10 5 .........:.....:.....:... ' 0 E S c •E S c �. V t t t rr a T >+ T >, >+ >. >. >. E E e� �b c v v v v -o -0 -p0 10 'A yy�� 4 pp pp N ~ ry N rl1 '� n O O rOi M tD ,• I ry R ppm O 8 Duration OCR L� . ............................. ..... .... LI ............ ... ....... -..._ "`....yam;.. ------- :+«J- :y�r-'ryT.`�.r........... L 2 5 10 25 50 ]on 200 snn int Average recurrence interval (years) n NOAA Atlas 14, Volume 2, Version 3 Created (GMT): Thu Apr 23 17:52:03 2020 Back to Too Maps & aerials Small scale terrain Average recurrence interval (years) — 1 -- 2 5 10 25 50 100 200 500 1000 Duration — 64M — 2-day — 10-min — 3-day --- 15-min — 4-day — 30-min — 7-day — 60-min — 10-day — 2fir — 20-day — "r — 30-day — 6-1r — 45-day — 12-hr — 60-day — 24-hr Fairview ;c C J' °Eden 31<m 2mi 1 V1fiGl.N1A Large scale terrain 5 i • Lynchburg B lark sburg Roalokz V Winston -Sales • • Durham Oct -i Raleigh 100km R0LINA fi0mi Large scale map II pl'JO Lynchburg cksburg , Roanoke t I Winston-Salem Greensboro - Durharn Oct Raleigh P- ._..• IJcrlli iOOkm i r fi0mi Large scale aerial Back to ToR US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring, MD 20910 Questions?: HOSC.Questions@noaa.gov Disclaimer Page 1 of 1 r-').�.J The open channel flow calculator Select Channel Type: Trapezoid V Veloci V &Dischar e Q V Select unit system: Feet ft V hannel slope: 0.4 low velocity 14.3485 Fs-eftSlope Water depth(y):�—F— (Zl): r o i (H: Bottom wldth(b) htSlo a Z2 g P( )' �— o t (H:V low discharge 33.6473 3/s Calculatel Input n value 0.03 or select Status: Calculation finished —� Reset —� Wetted perimeter 7.57 6-- low area l 34 MA2 op width('1)7.4 F— roude number .49 Flowstatus supercritical flow -ritical Specific energy !.! — 7:711 depth 0.89 R(-- ritical slope o.0154 ft/� R — elocit. hr+ad a 9 G — Copyright 2000 Dr. Xing Fang, Department of Civil Engineering, Lamar University. B'r}iC�LS � : ��lY•l� �1F�' 7rgP,C T N- QwL. https://www.eng.aubum.edu/—xzfUO01/Handbook/Channels.html 4/10/M')n lqft✓ Calculations and Hydrological Model Routing Erosion and Sediment control (Phase 2) Ararat Rock Eden Quarry ® CALCULATE FAIRCLOTH SKIMMER® SIZE Basic volume in cubic feet 110642 Days to Drain 3 Volume is the actual or provided volume the you Intend to drain, usually Number of Days to drain, is usually determined by focal not the required volume which is often smaller. if a pool of water is to be or state regulations. Where there Is no requirement 3 maintained between norms, do not include that volume. In some cases a days is recommended. Keep in mind the quicker the sediment basin may be larger than required because it will be used as a basin is to drain the larger the skimmer required. in NC, Permanent stormwater pond. assume 3 days to drain, FLOW CAPACITIES (IN FT 3) FOR THE FAIRCLOTH SKIMMER® Skimmersize 1.5" 2" 2.5" 3" 4" (F:) 6" V. 24 hours 1,728 3,283 6,234 9,774 20,109 32,832 51,840 97,978 2 day 3,456 6,566 12,468 19,548 40,218 65,664 103,680 195,956 3 day 5,184 9,849 18,702 29,322 60,327 99,496 155,520 293,934 4 day 6,912 73,132 24,936 39,096 80,436 131,328 207,360 391,912 5 day 8,640 16,415 31,170 48,870 100,545 164,160 259,200 489,890 6 day 10,368 19.698 37,404 58,644 120,654 196,992 311,040 587,868 7 day 12,096 22,981 43,638 68,418 140,763 229,824 362,880 685,946 '78 496 /3 '� S /Z4 o, 38 c,(-s I ol,as,a � e _JA D 1u ols Drainage Are Basin ;Y Sediment Basin #1 a PeEequebyyM h 14`�m qMq Y!a'pM 11w/�os f0 W]I10.21 M 1@I] O'AIe MyS/L�e Ic Sae1 N(Wa ) N.a ea 6WL]gml 1�1 care x.kre oon Isce eeao x a000 reoc oam Ysao um oer la Ylm WeN .YEA etlYga -Phwa - 1 raewmr Mlmn evlex�u,r�nedr.sae�vu o.a ��Olee aa4el YY a Urapa Wal permn.r.re.y asm Y Ila] em Y IeT4MG eeellgUl JohY F1" byeY� PMIe YiD2g1 x�xaoelaeul M1am emleY,eauYeae.resamr YiwlacavYe(el liaJee) IWM fE68 HEYC Id6e Cea ew vv.d hwl W W (�) poN Iay (R) car omo omo omo aeon amo aeon le amo aao amo mm uoo um ror,¢ Raxroalomxl M10]n em aN.d:xnsA.mI cnWme amxmo nPW uwnopoamWW) liM lW. ewwn WM."d 4pn aBOW n DaNM1S1d H4 emW] ro"d. mn rva n..0 my r..A.i o.a.n r�1 + aP mm saa Imo Omn BOo mo OO OO ad-,gwry_PhH NOAA2N C2-Yer R*tl a41• PLO byw= IM1be Ym0130 �mr+Olas da+o]e exn xa,c 5de..aeWM." 6ummary br&hctlshmmt 1P, Drahupelw Bsi 8n n NW abaiceMd.�rr"1DWetapWrAanN Webe . 1Bd0Aa,2m Na. 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'a o-= s x c.a - _a -m a u n m c v Wehner, Judy From: Harris, Brenda M Sent: Monday, March 30, 2020 11:49 AM To: Wehner, Judy Subject: FW: MP 79-07 Eden Quarry Modifications _NCWRC Site Visit Memo Attachments: MP 79-07 Eden Quarry NCWRC Site Visit Summary.pdf From: Munzer, Olivia <olivia.munzer@ncwildlife.org> Sent: Monday, March 30, 2020 11:13 AM To: Harris, Brenda M <brenda.harris@ncdenr.gov> Cc: William Branch <will @ara ratrock.com>; James Crossingham <james@araratrock.corl Russ, W. Thomas <thomas.russ@ncwildlife.org>; John Ellis <john_ellis@fws.gov> Subject: MP 79-07 Eden Quarry Modifications _NCWRC Site Visit Memo Ms. Harris, Please see the attached technical memo regarding my site visit to the Eden Quarry Modifications. Please let me know if you have any questions. Thank you, Olivia Olivia Munzer Western Piedmont Habitat Conservation Coordinator NC Wildlife Resources Commission Rogers Depot 1718 NC Hwy 56 W Creedmoor, NC 27522 Office: 919-707-0364 Cell: 336-269-0074 olivia.munzer@ncwildlife.org www.ncwildlife.org ©012n Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. 0 North Carolina Wildlife Resources Commission Gordon Myers, Executive Director MEMORANDUM TO: Brenda M. Harris Mining Program Secretary Land Quality Section FROM: Olivia Munzer Western Piedmont Coordinator Habitat Conservation DATE: 30 March 2020 SUBJECT: Site Visit at Eden Quarry — Ararat Rock Products Company, Rockingham County, North Carolina. Permit No. 79-07. On 13 February 2020, Olivia Munzer with the North Carolina Wildlife Resources Commission (NC WRC) provided comments to the NC Department of Environmental Quality (NCDEQ) Division of Energy, Mineral, and Land Resources (DEMLR) regarding the permit modification for the Eden Quarry located in Eden, Rockingham County, North Carolina. These comments were provided in accordance with provisions of the Mining Act of 1971 (as amended, 1982) (G.S. 74-46 through 74-68 15 NCAC 5). Ms. Munzer used aerial photography, topographic maps, and Natural Heritage Data for the permit review. The site appeared mostly forested, and it flows to an unnamed tributary to Dry Creek. Dry Creek flows into Cascade Creek in the Roanoke River basin. Downstream of the site are known records of the federal and state endangered James spinymussel (Pleurobema collina) and Roanoke logperch (Percina rex) and state endangered green floater (Lasmigona subviridis). We have known records for the federal and state endangered smooth coneflower (Echinacea laevigala); state special concern Carolina birdfoot-trefoil (Acmispon helleri) and American barberry (Berberis canadensis); and the state significantly rare southeastern bold goldenrod (Solidago rigida var. glabrata) near the site. For these reasons, NC WRC had concerns for the direct and indirect impacts the mining operation would have on federal and state - listed species. Ararat Rock Products Company (Ararat) contacted Ms. Munzer in response to her comments provided to DEMLR. On 16 March 2020, Ms. Munzer visited the area proposed for addition to the Eden Quarry. At the time of the site visit, the site had been cleared and seeded (see Photograph 1). Minimal water was flowing into the culvert located along the west side of the access road to the mine. Ararat had constructed a rock pipe inlet protection structure around the culvert (see Photographs 1 & 2). On the east side of the mine access road and railroad tracks, a plunge pool occurs at the culvert outlet. Based upon a cursory glance, it appears that surface water likely accesses the unnamed tributary to Dry Creek only during higher flows (see Photograph 3). Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919)707-0220 • Fax: (919)707-0028 ''.0, Page 2 30 March 2020 Eden Quarry Modification Permit No. 79-07 Based upon the site visit and the current condition at the site, it is unlikely the project will have a significant impact rare, threatened, or endangered aquatic species and other aquatic resources if erosion and sediment control measures conform to the High Quality Water Zones standards stipulated in the NC Department of Environmental Quality Erosion and Sediment Control Plan (hups:Hdeq. nc.gov/about/divis ions/energy-mineral-land-resources/enerev-m i neral-land-perm it- guidance/erosion-sediment-control-planning design -manual). We also suggest the following recommendations. 1. At the time of the visit, the soil around the rock pipe inlet protection structure was not vegetated. Due to the presence of federal and state listed species downstream of the project, we recommend a 50-foot buffer of native vegetation buffer planted around the culvert to reduce sediment transport and pollutants in stormwater runoff. A vegetated buffer can minimize impacts to aquatic and terrestrial wildlife resources, water quality, and aquatic habitat downstream of the site. 2. Native plants are preferred and recommended for revegetation and reclamation activities. Non-native plants should be removed from the seeding schedule. Shrub lespedeza and sericea lespedeza are invasive and/or non-native and should be avoided. Consider an alternative mix of red clover, creeping red fescue, prairie dropseed, and a grain, such as oats, wheat, or rye. Specifically, this project would be ideal for planting native, wildflower seed mixes that will create pollinator habitat within the reclaimed areas. Pollinators are some insects (i.e., bees, moths, and butterflies) and birds that play an important role in the reproduction of flowering plants, which produce many fruits and vegetables. Habitat loss, disease, and other environmental changes have caused a decline in pollinators. Please see the attached list of suitable native plants for revegetation and reclamation. 3. Sediment and erosion control measures should use advanced methods and installed prior to any land - disturbing activity. The use of biodegradable and wildlife -friendly sediment and erosion control devices is strongly recommended. Silt fencing, fiber rolls and/or other products should have loose - weave netting that is made of natural fiber materials with movable joints between the vertical and horizontal twines. Silt fencing that has been reinforced with plastic or metal mesh should be avoided as it impedes the movement of terrestrial wildlife species. Excessive silt and sediment loads can have detrimental effects on aquatic resources including destruction of spawning habitat, suffocation of eggs, and clogging of gills. If I can be of further assistance, please call (919) 707-0364 or email olivia.munzer@ncwildlife.org. ec: William Branch, Ararat Rock Products Company James Crossingham, Ararat Rock Products Company John Ellis, U.S. Fish and Wildlife Service Thomas W. Russ, NCWRC u Photographic Log Eden Quarry Permit Modification NCWRC Site Visit —16 March 2020 Photograph 1. Looking west at site from culvert along access road to Eden Quarry. Rock pipe inlet protection structure around culvert in foreground. Photograph 2. Looking north at culvert, rock pipe inlet protection structure and access road to Eden Quarry. *450 Photographic Log Eden Quarry Permit Modification NCW RC Site Visit —16 March 2020 Photograph 3. Looking northeast at the outlet of the culvert on the east side of the access road to Eden Quarry.