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Home My WebLink AboutWPO201800029 VSMP - SWPPP WPO VSMP 2018-11-26IM ALgCOUNTY OF ALBEMARLE Department of Community Development o 401 McIntire Road, North Wing Charlottesville, Virginia 229024596 F" Tel. (434) 296-5832 • Fax (434) 9724126 �I�I;3lP Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Project Name: The Center at Belvedere WP0201800029 Address: Belvedere Parcel 1 Parcel 06100-00-00-15400 D.B. 4147 P.128 Prepared by: Timmons Group 608 Preston Avenue, Suite 200 Charlottesville, VA 22903 434.295.8317 Prepared for: Senior Center Incorporated 1180 Pepsi Pl. Charlottesville, VA 22901 Contact: Peter Thompson 434-974-7756 SWPPP Preparation Date: November 13, 2018 APPROVED by the Albemarle County Communityeveio� erenb k'r;t)artment Date File „ �» )► UI) ri��l (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) RECEIVED NOV 13 1018 COEM�M�UpNnrYN Issued — 10/2014 Stormw�a��PtllTii'tiSff eervention Plan (SWPPP) Albemarle County CONTENTS: (from Albemarle County Code Sec. 17-405) �✓1. Registration statement 2. Notice of general permit coverage 3. Nature of activity 4. Erosion and Sediment Control Plan. 5. Stormwater Management Plan 6. Pollution Prevention Plan. 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. 8. Qualified personnel 9. Signed Certification 10. Delegation of authority. 11. General permit copy 12. Inspection logs Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 1. Registration statement (Provide a signed completed copy of the DEQ registration statement) M OM Issued —10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Registration Statement General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10) (Please Type or Print All Information) 1. Construction Activity operator: (General permit coverage will be issued to this operator rhe Cerfificat;or, in Item 412 must Cie signed by the appropriate person associated with this operator ) �a e AG Dillard, INC contact Josh Rector Mailing Address 295 Memory Lane City. Troy State VA _-- zip 22974 Phone. 434-977-3750 Email address (if available). josh �ia agdillard.Com 2 3 4 '*"W Indicate if DEQ may transmit general permit correspondence electronically Existing General Permit Registration Number (for renewals only):_ Name and Location of the Construction Activity: Name The Center at Belvedere Address (if available):_ City. Charlottesville Yes 0 No 0 State: VA County (if not located within a City): Albemarle Latitude (decimal degrees). 38.067585 Longitude (decimal degrees). -78.463355 Name and Location of all off-site Support Activities to be covered under the general permit: Name: Address ("if available City: State: zip: 22901 zi County (if not located within a City): Latitude (decimal degrees): Longitude (decimal degrees): Status of the Construction Activity (check only one): Federal ❑ State ❑ Public g Private ❑ `ature of the Construction Activity (e.g., commercial, industrial, residential, agricultural, oil and gas, etc.): 6. Name of the Receiving Water(s) and Hydrologic Unit Code (HUC): Name. Rivanna Name: HUC: 02080204 HUC: 7. If the discharge is through a Municipal Separate Storm Sewer System (MS4), the name of the MS4 operator: 8. Estimated Project Start and Completion Date: Start Date (mm/dd/yyyy): Completion Date (mm/dd/yyyy): 9. Total Land Area of Development (to the nearest one-hundredth acre): 5.91 AC Estimated Area to be Disturbed (to the nearest one-hundredth acre): 5.76 AC 10. Is the area to be disturbed part of a larger common plan of development or sale? Yes ❑ Nog 11. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting this Registration Statement. By signing this Registration Statement the operator is certifying that the SWPPP has been prepared. 12. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for knowing violations." Printed Name: Josh CtOr,,- Title: VP Business Development Signature: =' Date: it/ 2�zm (Please sign is INK. This Certification must be signed by the appropriate person associated with the operator identified in Item #1.) 11 ' 07/2014 Page 1 of 1 Section 2. Notice of general permit coverage (This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.) (Provide a copy of the DEQ coverage letter when obtained) M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 3. Nature of activity This project includes the construction of a new building, parking areas, utilities, and associated site work. Phase II of the project includes the construction of an additional building. Limits of disturbance for this project totals 6.56 acres. The site is currently cleared for development. All construction shall take place in accordance with the Erosion and Sediment Control Sequence of Installation on plan sheet C3.0. Estimated construction dates are as indicated on the Registration Statement. OM M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 4. Erosion and Sediment Control Plan. "ame(Provide a reduced, 11 x 17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) 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A DN n" TIMMONS GROUP m w BELVEDERE PHASE I z Co _ ALBERMARLE COUNTY, VIRGINIA o N COVER These Dlans antl assn .ir. mems are IM ear Ir f rIMMONS GROUP eM may rwl l repmdu d In.Mle or In pan aM shell rwl G usetl for any purpose whehpever. inclu — but mt Ilmdetl to cpnslruclrpn nin, nr andlor cpnsbucep r.r p•a :: : _, ..�—.p—.r- conaenl of TIMMONS GROUP. • THIS DRAWING PREPARED AT THE • • • •• YOUR VISION ACHIEVED THROUGH OURS. CHARLOTTESVILLE OFFICE 608 Preston Avenue, Suite 200 1 Charlottesville, VA 22903` a TEL 434.295.5624 FAX 434.295.8312 www.timmons.com N SPC OA7E REVISION DESCRIPTION 1 9-21-18 IREVISED PER COMMENTS 7 p -,- .00 .0. NAD 83 It .00 wo oo fop Its ♦ Agr♦' fop .00, (9)/_�/ / I _' / ' /, (\ '1Z 'A —0-0 040 0001 Z: ---------------- zz— .00 y IWO o* It lM \0 - --------- C.- \& 7 1 14 tJ 0 pO 0 2 6 00 T IMMONS GROUP. �01R -11.11 ACHIEVED TIIR.II...I1RF. THIS DRAWING PREPARED AT THE A_.__� ."_E W. P—Wri Avenue, Suite 200 1 Charlottesville, VA 22903 TEL 434.295 5624 FAX 434.295.8317 -t--- BELVEDERE PHASE I n !S REVISED PER COMMENTS 00o 1— ALBERMARLE COUNTYVIRGINIA ti , PRE -DEVELOPMENT DRAINAGE AREAS Th- Pill, Ild,,,—.Ied d.umann ill th, 1-1 l—m—f TIMM SGROP.ndm.vnelb.l..,nd.11.d.I.�w,,,,�n.,,.� ��.11�.,ro,,,,., �ta•r —PO Am,Mm„C,C2.0 POST-0EVELOPMENT ORAMAGE AREAS &,,I I Pb11eE on 11113/20188 44 AM ; by Jppn Wilepn NAD 83 s TIMMONS GROUP BELVEDERE PHASE I N z DO $ ALBERMARLE COUNTY VIRGINIA a N o POST -DEVELOPMENT DRAINAGE AREAS TMs, pons entl asspcbl,4 documents are 4re,ncluerve Properly pf TIMMONS GROUP aM m rot be reprptluc,4 in wlwb or m pert entl abed - M — fol., , —t,pever, mlus Wt rqt imded 1, c,peuuq bbd'rg,eMlorcorotruction.b,, whb tb,,.Prase— consent pi TIMMONS GROUP 8 0 / Zm� O D — — — — — — — — — — �J 1 i 00 THIS DRAWING PREPARE, AT THE •• YOUR VISION ACHIEVED THROUGH OURS. CHARLOTTESVILLE OFFICE • .11 Poston Avenue, Suite 2001 CNaliottesvllle, VA 22903 TEL 434.295.5624 FAX 434.295.8317 vvxw.timmons.cpm nI DATE RFV7SION DFSCRIPTInN n >c = N n � v 9-21-18 REVISED PER COMMENTS I� o m z i E v i 11-13-1 REVISED PER COMMENTS - - _.._---- FFA I +�+11—,b4d% ardor conslruclion-kM -h- ,— -- consent of TIMMONS GROUP. Ix Apo op Owl 0 o b o Z �� -+ K4�1--- T\ \�\ "" o o�z $ + 0+00 OUTFALL a '- s moit • o $p D -�- \fir D \ m game _.._T �Agmgq _ 5Qj z m > �� "`�'c,y, ASN � \X). � •\�� \ I // 1 111 .� \\�'�.` \\1 � \ 1111 � I ; I `, I I I I• I m B =o o^��s �C,moz 1 �' I if d� Znl ��q�(�1 i t /A I X,\..�. \\ i t I I ( \ 1\ 11 I I 1 J r RZ C) o 0+46 of EX. BAW ENT - - + — • , I \-_- -o iI II fllllll � V _ Rg � //i/l/ i I v 'll� i l lllil 1iI II III`•IIIIpI �i/i/ r til � I II III IlilI ryrI// �� 1 1 6' DIP8CL52 DRAIN rl III �G+9Al + IIINV. 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HIS DRAWING PREPARED AT THE CHARLD""1 1 OFFICE yj j r' • • sto 608 Pren Avenue, Suite 200 I Clwnottesville, VA 22903 TEL 434.295.5624 i-• FAX 434.295.8317 www.timmons.mm o yy {? y A a m° A m BELVEDERE PHASE IDATE n jillm-l= N A ° 0 REVISI�NDESCRIPTION 9-2t-18 REVISED PER COMMENTS N COUNTY VIRGINIA S i 11-1 •1 REVISED PER COMMENTSALBERMARLE -+ STORMWATER MANAGEMENT FACILITY �da„�m,��ma,�a,��,e.�,�sl�,o•o�m�,TIMMnM�r.R„Im,Mm.�m,�e.,...A,,...,.�....•;........�.,_.�._e....a..._..___....____.._.__._._....__. I +�+11—,b4d% ardor conslruclion-kM -h- ,— -- consent of TIMMONS GROUP. 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Gat � •q i$ ga cmm �^pl "�0yzx m0 �roml1mz .. a, -ZS Nmo(�� yym2y�j0 m 2 D b om O Op A RSEVISION DESCRIPTION eD p o •1 -1 REVISED PER COMMENTS SIMPLE METHOD WORKSHEETS AND COMPUTATIONS 0. � a GROUP. ••••• Preston HIS DRAWING PREPARED THE YDUR VISION ACHIEVED THROUGH CNARLOTTE--OFFICE Aenue, Sone Charlottele22903 , VA TIMMONS • • TEL 434.295.5624 FAX 434.295.8317 www.timmons.com A O Y C P Q � z CID �, o N BELVEDEREPHASE IS ALBERMARLE COUNTY, VIR(IINI%I $ RSEVISION DESCRIPTION eD p o •1 -1 REVISED PER COMMENTS SIMPLE METHOD WORKSHEETS AND COMPUTATIONS inc se os phd ---dc—d tlocumams aie Inioa erclusrve p — of H~.S GROUP end mey nal be Ilprod.-d In whole 11 m pert and sh111- be 111E billy Purpose wh,1d,,d el , lusive. but not 181E to conahuciian, d,dc,ng, andlpr conslruclwn shFing wEfwul the evpress —,din con9enl of TIMMONS GRGUP Section 6. Pollution Prevention Plan. reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section A.4) A. Plan showing pollution activities and prevention practices (Provide a reduced 11 x 17 copy of a site plan on which all of the following activity locations are clearly marked. Keep this plan up-to-date with ongoing site changes and inspections.) M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County X gg VyLA MUZ VINIWIA 3-n1AS3LL01b1VH0 Z $ .w °kms` rV ZOy S�id3au anoa�°sNowwii w _ x e a NBWNSfIB•SS Hwy ;� �� w 3 r °ia = -j LLI aaa torr.I 41 ,✓'� ✓ I t I 7 10 J V a a LL „ -- — — — — t I — ft -ft I I , •1 / V J l �� ✓ J f I am � �'o� � _ �a1��.Li�_ � a IIII I N 5.0 co o LL AtA N 40 f I y iia r f� i I I J l f(I+ ft h 3f if ) W / 2 w 0 <. r \. oinCL Oo W,o U= $ LL Q � f �� / 00, o f' LLI � / l I M X 3 V41 CWZ VINIJHIA 311IAS3U0IUVH0 Z -- v^ s o _ p4La A Yu zow N NNWHS�B anouo°sNowwii y a x o a d &fin7y a _W w� g �z r0 bwa d T / 1 tJ Fq aoQ 2tloN a' 1 - .,Alp f Ai I I , J, I OLL 15 I I I I I I ftftft I 1 I I I I e — a ! lk h I qy a ,t�� \� p ti k' x r a t 1 I/ w S1y l / b , �TN !' a t .� / flu 00 Q t a fLL Z i ;i - IX 0. �� / I n B. Sources of Pollutants, locations, and Pollutant, or Pollutant Generating Activity Location on site Prevention Practices, Control Measures C. Sources of Pollutants continued. Common activities and minimum control and prevention practices Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Follow Erosion and Sediment Control Clearing, grading, excavating, and un- Land disturbance area Plan. Dispose of clearing debris at stabilized areas acceptable disposal sites. Seed and mulch, or sod within 7 days of land clearing Cover storm drain inlets and use drip pans Paving operations Roads and driveways and absorbent/oil dry for all paving machines to limit leaks ands ills Direct concrete wash water into a leak- 1 Concrete washout and Current location and detail shown on proof container or leak -proof settling basin cement waste plan that is designed so that no overflows can occur _ Enclose or cover material storage areas. Mix paint indoors in a containment area or Structure construction, stucco, Structures in a flat unpaved area. Prevent the painting, and cleaning discharge of soaps, solvents, detergents and wash water, paint, form release oils and curing compounds. Water shall be filtered, settled or similarly Dewatering operations Dewatering sites shown on plan treated prior to discharge as shown on plan. I Designated areas for material deliveryndand Material delivery and storage Designated area shown on plan storage. Placed near construction entrances, away from waterways and drainage paths Follow manufacturer's instructions Material use during building process Building areas MSDS's attached. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County M Pollutant, or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Waste collection area will not receive a substantial amount of runoff from upland areas and does not drain directly to a Current designated container areas on waterway. Containers have lids covered Solid waste disposal plan before periods of rain, or are in a covered area. Scheduled collection to prevent overfilling. MATERIALS NOT TO BE BURIED ON-SITE Convenient and well-maintained portable sanitary facilities will be provided, and Sanitary waste Current locations shown on plan located away from waterways or inlets. Such facilities shall be regularly maintained. Apply fertilizers in accordance with Landscaping operations Landscape areas shown on plan manufacturer's recommendations and not during rainfall events To be treated in a sediment basin or better Wash Waters Wash areas shown on plan control as specified on plan. Minimize the discharge of pollutants from e ui ment and vehicle washing Vehicle and equipment washing Designated areas and details shown on Provide containment and filtering for all plan wash waters per the plan Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site to precipitation and to stormwater. �r (Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-stormwater discharges.) I JA Non-stormwater discharges Discharge Pollutants or Pollutant Location on Site Constituents Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County E. Persons responsible for pollution prevention practices (Provide the names and contact information for all persons responsible for prevention practices as listed above.) Josh Recter AG Dillard, INC 295 Memory Lane Troy, VA 22974 434-977-3750 F. Response and reporting practices Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures as follows. Respond to all spills, leaks and discharges as follows; Materials and equipment necessary for oil or chemical spill cleanup will be kept in the temporary material storage trailer onsite. Equipment will include, but not be limited to, brooms, dust pans, mops, rags, gloves, goggles, kitty litter, sand, saw dust, and plastic and metal trash containers. All oil or other chemical spills will be cleaned up immediately upon discovery. Identify and stop source of discharge. Use absorptive materials to soak up as much chemical as possible. Place all contaminated material in trash containers for disposal Report all spills, leaks and discharges as follows; (Provide detailed response and reporting practices according to 9VAC25-880-70, Part I1, section A.4.e.) Reports will be made to the following: Virginia Department of Emergency Management Emergency Operations Center (EOC) Phone: (800) 468-8892 Spills large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424- 8802. Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County G. Pollution Prevention Awareness The registered land disturber shall oversee all construction activities to implement and maintain pollution prevention measures. As such training and procedures shall be provided by contractor for each worker on site before they begin land disturbing activities. Training on implementation of erosion and sediment control devices/procedures must be provided by registered land disturber each time a new E&SC procedure is constructed. M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload allocation, and exceptional waters. This site discharges to impaired waters as detailed on the following sheets. Enhanced inspection frequency is required as outlined below: (1) Inspections shall be conducted at a frequency of (i) at least once every four business days or (ii) at least once every five business days and no later than 48 hours following a measurable storm event. In the event that a measurable storm event occurs when there are more than 48 hours between business days, the inspection shall be conducted on the next business day; and (2) Representative inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall inspect all outfalls discharging to surface waters identified as impaired or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit. 0 OM Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County n *%W Benthic TMDL Development for the Rivanna River Watershed Submitted by Virginia Department of Environmental Quality Prepared by THE Louis Berger Group, INC. 2445 M Street, NW Washington, DC 20037 Final Report March 2008 EM m m Benthic TMDL Development for the Rivanna River �%Ie Executive Summary 9M Introduction As required by Section 303(d) of the Clean Water Act and current EPA regulations, states are required to develop Total Maximum Daily Loads (TMDLs) for waterbodies that exceed water quality standards. One segment of the Rivanna River mainstem was first included on Virginia's 1996 Section 303(d) List of Impaired Waters, and was subsequently included on Virginia's 303(d) Lists of Impaired Waters and Water Quality Assessment 305(b)/303(d) Integrated Reports because of violations of the General Standard (benthic impairment). During the 2006 303(d) assessment, DEQ concluded that a second segment was also biologically impaired (DEQ, 2006). This report addresses both benthic impairments. The Rivanna River is located in central Virginia, and is a tributary to the James River. The watershed encompasses the City of Charlottesville, and covers portions of four counties: Albemarle, Greene, Nelson, and Orange counties. Of these four counties, Albemarle and Greene County cover the majority of the watershed. Impairment Listing The Virginia Department of Environmental Quality (DEQ) uses biological monitoring of benthic macroinvertebrates as one method to assess support of the aquatic life use for a waterbody. There are currently two benthic impairments on the mainstem Rivanna River. The upstream impairment of the Rivanna River (VAV-H28R-01) begins at the confluence with the North and South Fork Rivanna Rivers, and ends downstream at the confluence with Moores Creek. This segment was first included on Virginia's 1996 Section 303(d) List, and was subsequently included on Virginia's 303(d) Lists of Impaired Waters and Water Quality Assessment 305(b)/303(d) Integrated Reports based on biomonitoring results obtained between 1996 and 2005. According to the 2004 303(d) fact sheets, the cause for the benthic macroinvertebrate impairment is believed to be related to non -point source urban runoff. During the 2006 303(d) assessment, DEQ concluded that the segment directly downstream of VAV-H28R-01 was also biologically impaired (DEQ, 2006). This segment (VAV-H29R-01) begins at the confluence with Moores Creek and ends downstream at an unnamed tributary just after the RWSA- Executive Summary E-1 Glenmore STP. Based on the 2006 303(d) list (DEQ, 2006), the source of the benthic macroinvertebrate impairment is unknown. Watershed Characterization and Environmental Monitoring The Rivanna River benthic impaired watershed covers approximately 332,530 acres. Dominant land uses in the watershed are forest (65%) and agriculture (22%), which account for a combined 87% of the total land area in the watershed. The Occoquan- Meadowville-Buckhall soils comprise 48.2% of the watershed. Environmental monitoring efforts in the Rivanna River watershed include benthic community sampling and analysis, habitat condition assessments, ambient water quality sampling, and toxicity testing. These monitoring efforts were critical in the development of the Rivanna River TMDL, and have been conducted by agencies at both the state and local levels, including the Virginia Department of Environmental Quality (VADEQ) and United States Geological Survey (USGS). In addition to these agencies a citizen monitoring group, StreamWatch, has conducted monitoring efforts. Biological `rr monitoring and habitat condition assessment data were collected by the VA DEQ at monitoring stations 2-RVN035.67 and 2-RVN033.65, located in the benthic impaired segment VAV-H29R-01. Stream watch conducted biological monitoring at 3 additional locations in the watershed. Water quality data were collected from two stations on the Rivanna River, 2-RVN037.54 and 2-RVN033.65, in addition to four stations located on tributaries that affect the upstream Rivanna River; 2-RRS003.12, 2-RRN002.19, 2- MWC000.60, and 2-MSC000.60. The Rivanna River Roundtable conducted water quality monitoring at 14 stations in the Rivanna River watershed. A relative bed stability analysis was also conducted by VA DEQ at station 2-RVN033.65. Stressor Identification Assessment of the primary stressor contributing to biological impairment in the Rivanna River was based on evaluations of candidate stressors that can potentially impact the river. The identification of the most probable cause of biological impairment in the r✓ Rivanna River was based on evaluations of these candidate stressors. The evaluation Executive Summary E-2 includes candidate stressors such as dissolved oxygen, temperature, pH, metals, organic sow chemicals, nutrient, toxic compounds, and sediments. Each candidate stressor was evaluated based on available monitoring data, field observations, and consideration of potential sources in the watershed. Furthermore, potential stressors were classified as: Non -stressors: The stressors with data indicating normal conditions and without water quality standard violations, or without any apparent impact Possible stressors: The stressors with data indicating possible links, however, with inconclusive data to show direct impact on the benthic community Most probable stressors: The stressors with the conclusive data linking them to the poorer benthic community. The data and analysis presented in this report indicate that temperature, pH, and dissolved oxygen in the biologically impaired segment of the Rivanna River are adequate to support a healthy invertebrate community, and are not stressors contributing to the benthic impairment. Concentrations of metals and organic chemicals were generally low or below analytical detection limits and are also classified as non -stressors. Phosphorous, potentially from the Moores Creek STP may be causing eutrophication in the stream. This was reflected by a majority of samples composed of macroinvertebrates typically tolerant to pollution from organic wastes or nutrients. Phosphorous is therefore identified as a possible stressor. Toxicity tests found biological effects on fathead minnow survival and biomass, making toxicity another potential stressor. Based on the Stressor Identification Analysis, sedimentation caused by higher runoff flows has been identified as a primary stressor impacting benthic invertebrates in the biologically impaired segments of the Rivanna River. Embeddedness and sediment deposition were found to be suboptimal. Potential causes of sediment loading in the watershed include land use, poor riparian zone conditions, erosion, and runoff. Although the majority of the watershed is forested and agricultural land, the area upstream and Executive Summary E-3 Benthic TMDL Development for the Rivanna River surrounding the portion of the Rivanna River benthic impairment is within the City of Charlottesville. The impervious surfaces of urban areas will increase the speed of runoff, which can erode banks, scour stream beds, and deliver toxic chemicals. Also, in the upper portion of the watershed, studies have shown that there is a high level of sedimentation related to stream bank instability. The interrelation between sedimentation, higher runoff flows, and habitat alteration, allows a TMDL for sediments to address habitat degradation as well as increased urban runoff. Improvement of the benthic community in the biologically impaired segment of the Rivanna River watershed is dependent upon reducing sediment loadings through stormwater control, as well as restoring instream and riparian habitat to alleviate the impacts of urbanization on the river. To address these issues, a sediment TMDL will be developed for the biologically impaired segments of the Rivanna River watershed. Modified Reference Approach `rr In the case of the modified reference watershed approach, conditions in several non - M impaired watersheds are used to establish the TMDL endpoint. Selection of an appropriate reference watershed is based on similarities in ecoregion and stream order. Similar watersheds help to ensure similarities in the benthic communities that potentially may inhabit the streams. Similar watersheds also provide for similar watershed hydrology which influences pollutant loading rates to the stream. Several DEQ stations, located in non -impaired watersheds, were used as references for the impaired Rivanna River watershed. The non -impaired reference stations included stations from: the Rapidan (3-RAP030.21), Piney (2-PNY005.30), Robinson (3-ROB005.42 and 3- ROB004.98), Rockfish (2-RKF0216.13), and South Mayo River (4-ASMR017.72) as well as a station in Goose Creek (4-AGSE015.07). Executive Summary E-4 Benthic TMDL Development for the Rivanna River Sediment Rating Curves The sediment rating curve is used to compare correlations of flow vs. sediment for the non -impaired reference stations and the impaired segment of the Rivanna River. The sediment rating curve is the result of attributing each TSS sample collected at an impaired or non -impaired DEQ station with flow data collected at a nearby USGS station. The result of this comparison is a regression equation, or sediment rating curve, which is then used to generate a load duration curve (described in the following section). The non - impaired sediment rating curve is the basis for the TMDL. Load Duration Curves A Sediment Load Duration Curve characterizes sediment loads at different flow regimes and displays the relationship between stream flow and loading capacity (US EPA, 2007). Using the sediment rating curve equations, predicted non -impaired and impaired sediment loads are calculated for all flow conditions in the impaired watershed. The sediment load duration curves are used to assign numerical values to the flow regime in the unimpaired reference stations and the impaired Rivanna River segment for comparison. The non -impaired load duration curve represents the TMDL endpoint. Additionally, the curve allows for each TSS target to be categorized into high flows, mid- range flows, dry conditions and low flows. Generalized Watershed Loading Functions (GWLF) Model The load duration curve does not distinguish between sources, however using the GWLF model, the percent sediment loading from land erosion from each landuse type is determined. GWLF is a time variable simulation model that simulates hydrology and sediment loadings on a watershed basis. The GWLF model is used to generate annual sediment loads by source, thereby determining the percentage of the total sediment load contributed from each land use type. TMDL Allocation Sediment TMDL allocations for the benthic impaired Rivanna River were based on the INW following equation. Executive Summary E-5 M ,%W Benthic TMDL Development for the Rivanna River TMDL = WLA +LA + MOS Where: TMDL= Total Maximum Daily Load (Based on the Sediment Load of the Adjusted Reference Watershed) WLA = Wasteload Allocation LA = Load Allocation MOS = Margin of Safety The wasteload allocation represents the total sediment loading allocated to point sources. The load allocation represents the total sediment loading allocated to non -point sources. A margin of safety is applied to account for uncertainty in methodologies and determination of sediment loadings. A margin of safety of 10% was used for the Rivanna River benthic TMDL. For the purpose of TMDL development, daily point source loadings for the 13 individually permitted facilities currently active or under application in the benthic impaired watershed were computed based on the average flow and the average total suspended solids concentration for each facility (Table E-1). Table E-1: Point River Watershed Source Daily Loads in the Benthic Impaired Rivanna Permit # Facility Name Existing Load (lbs/day) VA0025488 Camelot STP 15.9 VA0025518 Moores Creek Regional STP 470.5 VA0027065 Cooper Industries 4.4 VA0028398 Avionics Specialties Inc 0.03 VA0029556 Blue Ridge School STP .5 VA0055000 Crozet WTP 2.4 VA0075981 Ramada Inn Monticello STP 0.6 VA0076244 Stone Robinson Elementary School 0.3 VA0080781 Ehart Subdivision STP 8.8 VA0085979 Keswick STP 1.2 Executive Summary E-6 09 Benthic TMDL Development for the Rivanna River Table E-1: Point Source Dailv Loads in the Benthic Impaired Rivanna River Watershed Permit # Facility Name Existing Load (lbs/day) VA0086584 Glenmore STP 3.8 VA0087351 Virginia Oil - Charlottesville Discharges to MS4 VAR040051 VA0091120 North Rivanna WTP 16.3 Total 524.5 Five areas within the Rivanna River watershed have Municipal Separate Storm Sewer (MS4) permits. The MS4 permits state that the City of Charlottesville, the Virginia Department of Transportation (VDOT), University of Virginia, Albemarle County, and Piedmont Virginia Community College are permitted to discharge into the Rivanna River impaired watershed. The Charlottesville MS4 area was calculated by subtracting the VDOT major road areas (interstates and primary roads) within the City of Charlottesville from the US Census Urban Areas. VDOT road areas were estimated using the roads length within the urban areas and assuming a 25 foot -road -width. The Albemarle County MS4 was calculated using the urban areas identified in the Albemarle County Comprehensive Plan GIS data layer and subtracting major and minor VDOT road areas (interstates, primary roads, secondary roads, and other roads). Stormwater permits typically do not have numeric limits for sediment. To separate sediment loading attributed to the MS4s from other land-based sediment loading, an area weighted sediment load was determined for the MS4s, in which the percentage of sediment loading from each source area attributed to the MS4s was proportional to the percentage of that source area in the Rivanna River impaired watershed covered by the various MS4 permits. The MS4 acres and land based sediment loads currently in the watershed are shown in Table E-2. The wasteload allocations were based on each municipality's share of the contributing urbanized area of the impairment. To separate sediment loading attributed to the MS4s from other land-based sediment loading, an area weighted sediment load approach was used to determine the MS4 1%a✓ sediment loads. Additionally, stormwater runoff from MS4s results in increased stream Executive Summary E-7 M M Benthic TMDL Development for the Rivanna River bank erosion. Bank erosion resulting from MS4 stormwater runoff, and bank erosion resulting from overland runoff, were separated using a runoff weighted approach. Using this approach, the MS4 flow was calculated as a percentage of the total watershed flow, and used to calculate the bank erosion load for the MS4 areas. Sediment from other land sources in the watershed and the remainder of the bank erosion sediment load were attributed to the non -point sources. Table E-2: Land Based Non -Point Sediment Load River Watershed bMS4Area in the Benthic Impaired Rivanna Permit Number MS4 Permit Holder Existing Land Based Load (lbs/day) VAR040051 City of Charlottesville 477 VAR040033 VDOT Charlottesville Major Roads 5 VAR040073 University of Virginia (Charlottesville) 17 University of Virginia (Albemarle) 70 VAR040074 Albemarle County 1,606 VAR040033 VDOT Albemarle Roads 41 Application Piedmont Community College 7 Instream Erosion 6,545 Total 8,768 The total load, wasteload allocations, and margin of safety for Rivanna River are summarized in Table E-3 and Table E-4. Recommended allocations for each source in the watershed are provided in Table E-5. Overall, the sediment load in the Rivanna River watershed must be reduced by 45.1 % to meet the established TMDL endpoint. Executive Summary E-8 Benthic TMDL Development for the Rivanna River 11%W Implementation In general, Virginia intends for the required reductions to be implemented in an iterative process that first addresses those sources with the largest impact on water quality. Among the most efficient sediment BMPs for both urban and rural watersheds are infiltration and retention basins, riparian buffer zones, grassed waterways, streambank protection and stabilization, and wetland development or enhancement. Once developed, DEQ intends to incorporate the TMDL implementation plan into the appropriate Water Quality Management Plan (WQMP), in accordance with the Clean Water Act's Section 303(e). In response to a Memorandum of Understanding (MOU) between EPA and DEQ, DEQ also submitted a draft Continuous Planning Process to EPA in which DEQ commits to regularly updating the WQMPs. Thus, the WQMPs will be, among other things, the repository for all TMDLs and TMDL implementation plans developed within a river basin. Executive Summary E-9 iTable E-5: Summary of Watershed Existing and Allocated Sediment Loads for River Source Land Use Type Existing Load lbs/da Allocated Load lbs/da Percent Reduction Non -Point Source Forest 164 164 - Row Crop 14,654 5,958 59.3 Pasture/Hay 15,829 6,435 59.3 High Intensity Residential 2,292 932 59.3 Low Intensity Residential 225 91 59.3 Instream Erosion 20,900 8,497 59.3 MS4 Land-based 2,223 904 59.3 Instream Erosion 6,545 2,661 59.3 General Permits Outside MS4 Area Land-based 1,146 1,146 - Instream Erosion 882 882 - Point Source Individual VPDES Permits 524 4,636 - MOS 3,590 Totall 65,384 1 35,896 45.1 11%W Implementation In general, Virginia intends for the required reductions to be implemented in an iterative process that first addresses those sources with the largest impact on water quality. Among the most efficient sediment BMPs for both urban and rural watersheds are infiltration and retention basins, riparian buffer zones, grassed waterways, streambank protection and stabilization, and wetland development or enhancement. Once developed, DEQ intends to incorporate the TMDL implementation plan into the appropriate Water Quality Management Plan (WQMP), in accordance with the Clean Water Act's Section 303(e). In response to a Memorandum of Understanding (MOU) between EPA and DEQ, DEQ also submitted a draft Continuous Planning Process to EPA in which DEQ commits to regularly updating the WQMPs. Thus, the WQMPs will be, among other things, the repository for all TMDLs and TMDL implementation plans developed within a river basin. Executive Summary E-9 OR om Benthic TMDL Development for the Rivanna River Public Participation The development of the Rivanna River benthic TMDLs would not have been possible without public participation. Public meetings were held on March 15, 2007 and on February 11, 2008 at the Albemarle County Office Building in Charlottesville, Virginia. Copies of the presentation were available for public distribution at each meeting. Also, each meeting was public noticed in The Virginia Register of Regulations. Executive Summary E-10 Benthic TMDL Development for the Rivanna River �%w 1.0 Introduction Total Maximum Daily Load (TMDL) development for biological impairment requires a methodology to identify impairment causes and to determine pollutant reductions that will allow streams to attain their designated uses. The identification of the pollutant(s), or stressor(s), responsible for the impaired biological communities is an important first step in developing a TMDL that accurately specifies the pollutant load reductions necessary for the stream to comply with Virginia's water quality standards. This report details the steps used to identify and characterize the stressor(s) responsible for biological impairments in the Rivanna River, Virginia. The first section of this report presents the regulatory guidance and defines the applicable water quality criteria for biological impairment. In the subsequent sections, watershed and environmental monitoring data collected on Rivanna River are presented and discussed. Stressors that may be affecting the creek are then analyzed in the stressor identification section. Based on this analysis, candidate stressors impacting benthic invertebrate communities in the creek are %4W identified. A Total Maximum Daily Load (TMDL) will be developed for the stressor identified as the primary source of biological impairment in the Rivanna River. 1.1 Regulatory Framework Section 303(d) of the Clean Water Act and the Environmental Protection Agency's (EPA's) Water Quality Planning and Management Regulations (40 CFR Part 130) both require states to develop TMDLs for waterbodies that are exceeding water quality standards. TMDLs represent the total pollutant loading that a waterbody can receive without violating water quality standards. The TMDL process establishes the allowable loadings of pollutants for a waterbody based on the relationship between pollution sources and instream water quality conditions. By following the TMDL process, states can establish water quality -based controls to reduce pollution from both point and non - point sources in order to restore and maintain the quality of their water resources (EPA, 2001). Introduction 1-1 Benthic TMDL Development for the Rivanna River The lead regulatory agency for environmental matters in Virginia is the Department of Environmental Quality (VA DEQ). VA DEQ works in coordination with the Virginia Department of Conservation and Recreation (VA DCR), the Department of Mines, Minerals, and Energy (VDMME), and the Virginia Department of Health (VDH) to develop and implement a more effective TMDL process. VA DEQ is the lead agency for the development of TMDLs statewide, and focuses its efforts on all aspects of reduction and prevention of pollution in state waters. VA DEQ ensures compliance with the Federal Clean Water Act and the Water Quality Planning Regulations, as well as with the Virginia Water Quality Monitoring, Information, and Restoration Act (WQMIRA, passed by the Virginia General Assembly in 1997), and coordinates public participation throughout the TMDL development process. The role of DCR is to initiate non -point source pollution control programs statewide through the use of federal grant money. VDMME focuses its efforts on issuing surface mining permits and National Pollution Discharge Elimination System (NPDES) permits for industrial and mining operations. Lastly, VDH classifies waters for shellfish growth and harvesting, and conducts surveys to determine sources of contamination (DEQ, 2001). As required by the Clean Water Act and WQMIRA, DEQ develops and maintains a listing of all impaired waters in the state, which details the pollutant(s) causing each impairment and the potential source(s) of each pollutant. This list is referred to as the Section 303(d) List of Impaired Waters. In addition to Section 303(d) List development, WQMIRA directs DEQ to develop and implement TMDLs for listed waters (DEQ, 2001). DEQ also solicits participation and comments from watershed stakeholders and the public throughout the TMDL process. Once TMDLs have been developed and the public comment period has been completed, the TMDLs are submitted to EPA for approval. 1.2 Impairment Listing The Rivanna River is located in central Virginia, and is a tributary to the James River. The Rivanna River benthic impaired watershed covers approximately 332,530 acres in central Virginia, and is located within the James River Basin. The watershed Introduction 1.2 Benthic TMDL Development for the Rivanna River encompasses the City of Charlottesville, and covers portions of four counties: Albemarle, 11%W Greene, Nelson, and Orange counties. The majority of the watershed lies within Albemarle County (approximately 79%), and within Greene County (approximately 18%). There are currently two benthic impairments on the mainstem Rivanna River (Figure 1- 1). The upstream impairment of the Rivanna River (VAV-H28R-01) begins at the confluence with the North and South Fork Rivanna Rivers, and ends downstream at the confluence with Moores Creek. This segment was first included on Virginia's 1996 Section 303(d) List, and was subsequently included on Virginia's 303(d) Lists of Impaired Waters and Water Quality Assessment 305(b)/303(d) Integrated Reports based on biomonitoring results obtained between 1996 and 2005. According to the 2004 303(d) fact sheets, the cause for the benthic macroinvertebrate impairment is believed to be related to non -point source urban runoff. During the 2006 303(d) assessment, DEQ concluded that the segment directly downstream of VAV-H28R-01 was also biologically impaired (DEQ, 2006). This segment (VAV-H29R-01) begins at the confluence with Moores Creek and ends downstream at an unnamed tributary just after the RWSA- Glenmore STP. Based on the 2006 303(d) list (DEQ, 2006), the source of the benthic macroinvertebrate impairment is unknown. Introduction 1-3 710 Quail Run 60 !623 tu Elk Run 634 659 00, 33 2 V76 18 30 Z 26 co Ut lur 231 ;P, 955 4 IZ)rA- �J 0, ci Y, 810 41a, 41, e, 865 671 614 643 20 k 601r, Red/j VAV-H28R-01 231 k 240 -2 570 1 654 7 VAV-H29R-01 606 151 67 35 cu_ plA ar 637 0 53 Ri 631 7 1 R i v a n n a Watershed Lake 616 633 -618 600 Legend a1.a1 I\I)FX Populated Places Major Roads Streams Interstate 8 We. County Boundary US Hwy 303 (d) Impaired Segments State Hwy - VAV-H28R-01 OtherOul, Berger Grou-r p , VAV-H29R-01 =L Figure 1-1: Rivanna River Benthic Impaired Segments and Delineated Watershed Introduction 1-4 1.3 Applicable Water Quality Standard Water quality standards consist of designated uses for a waterbody, and the water quality criteria necessary to support those designated uses. According to Virginia Water Quality Standards (9 VAC 25-260-5), the term water quality standards "means provisions of state or federal law which consist of a designated use or uses for the waters of the Commonwealth and water quality criteria for such waters based upon such uses. Water quality standards are to protect public health or welfare, enhance the quality of water and serve the purposes of the State Water Control Law (§62.1-44.2 et seq. of the Code of Virginia) and the federal Clean Water Act (33 USC § 1251 et seq.)." 1.3.1 Designated Uses According to Virginia Water Quality Standards (9 VAC 25-260-10): "all state waters are designated for the following uses: recreational uses (e.g., swimming and boating); the propagation and growth of a balanced indigenous population of aquatic life, including game fish, which might be reasonably expected to inhabit them; wildlife; and the production of edible and marketable natural resources (e.g., fish and shellfish). " Based on the biological assessment surveys conducted on the stream, the listed segment defined in Section 1.2 does not fully support the propagation and growth of aquatic life in the Rivanna River. 1.3.2 Water Quality Criteria The General Standard defined in Virginia Water Quality Standards (9 VAC 25-260-20) provides general, narrative criteria for the protection of designated uses from substances that may interfere with attainment of such uses. The General Standard states: "All state waters, including wetlands, shall be free from substances attributable to sewage, industrial waste, or other waste in concentrations, amounts, or combinations which contravene established standards or Introduction 1-5 KM Benthic TMDL Development for the Rivanna River interfere directly, or indirectly with designated uses of such water or which are inimical or harmful to human, animal, plant, or aquatic life. " The biological assessments conducted on the Rivanna River indicate that some pollutant(s) are interfering with attainment of the General Standard, as impaired invertebrate communities have been observed in the listed segment of the creek. Although biological assessments are indicative of the impacts of pollution, the specific pollutant(s) and source(s) are not necessarily known based on biological assessments alone. Introduction 1-6 n M Bacteria TMDL Development for the Rivanna River Mainstem, North Fork Rivanna River, Preddy Creek and Tributaries, Meadow Creek, Mechums River, and Beaver Creek Watersheds Submitted by Virginia Department of Environmental Quality Prepared by THE Louis Berger Group, INC. 2445 M Street, NW Washington, DC 20037 Final Report March 2008 on qM n n Executive Summary This report presents the development of bacteria TMDLs for the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek watersheds. These water bodies were listed as impaired on Virginia's 303(d) Total Maximum Daily Load Priority List and Reports (DEQ, 1998, 2002, 2004, 2006) because of violations of the state's water quality standards for E. coli and for fecal coliform bacteria. Description of the Study Area The bacteria impaired Rivanna River watershed is located within the borders of Albemarle, Greene, Nelson, and Orange counties. The city of Charlottesville is also within the watershed's boundaries. All impaired streams are located in the Rivanna River watershed (USGS Cataloging Unit 02080204). The entire Rivanna River bacteria impaired watershed is approximately 321,877 acres. Impairment Description Segments of the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek were listed as bacteria impaired on Virginia's 2002, 2004, and/or 2006 303(d) Total Maximum Daily Load Priority List and Reports due to violations of the state's water quality standard for fecal coliform bacteria and/or E. coli. The impaired segments are located in the Rivanna River Basin in central Virginia. The watershed is located in the hydrologic unit (HUC) 02080204. The impaired watersheds include the City of Charlottesville and portions of Albemarle, Greene, Orange, and Nelson counties. The impaired segment of the Rivanna River (VAV-H28R-RVNO 1 A00) extends 5.28 miles along the mainstem from the confluence of the North Fork Rivanna River to Moores Creek. This segment of the Rivanna River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 200 through December 2004), 2 Executive Summary E-1 out of 9 samples (22%) collected at listing station 2-RVN037.54 exceeded the E. coli SWO, criterion of 235 cfu/100 ml. The impaired segment of Beaver Creek (VAV-H23R-BVR02AO4) extends 4.8 miles from its headwaters to Beaver Creek Reservoir. This segment of Beaver Creek was first listed on the 2004 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2004 assessment period (January 1998 through December 2002), 2 out of 16 fecal coliform samples (13%) collected at listing station 2-BVR005.70 exceeded the fecal coliform standard instantaneous of 400 cfu/100 ml. This segment remained on the 303(d) list in the 2006 Water Quality Assessment Report. The impaired segment of Meadow Creek (VAV-H28R-MWCOIA00) extends 4.01 miles from its headwaters to the confluence of the Rivanna River. This segment of Meadow Creek was first listed on the 2002 303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2002 assessment period (January 1996 through December 2000), 4 out of 23 fecal coliform samples (17%) collected at listing station 2-MWC000.60 exceeded the fecal coliform instantaneous standard of 400 cfu/100 ml. The impaired segment of the Mechums River (VAV-H23R-MCMO l A00) extends 10.44 miles from the confluence of the Lickinghole Creek to the Moormans River. This segment of the Mechums River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 2 out of 18 samples (1 I%) collected at listing station 2-MCM005.12 exceeded the E. coli criterion of 235 cfu/100 ml. The impaired segment of the North Fork Rivanna River (VAV-H27R-RRNO 1 A00) extends 10.38 miles from the public water intake to the confluence of the Rivanna River. This segment of the North Fork Rivanna River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of 9 Executive Summary E_2 samples (33%) collected at listing station 2-RRN002.19 exceeded the E. coli criterion of %we 235 cfu/100 ml. The impaired segment of Preddy Creek and its tributaries (VAV-H27R-PRDOI A00) extends 25.96 miles from its headwaters to the confluence of the Rivanna River. This segment of Preddy Creek was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of the 9 samples (33%) collected at listing station 2-PRD000.21 exceeded the E. coli criterion of 235 cfu/100 ml. During this same period, only 1 out of the 9 samples (1 I%) collected at listing station 2- PRD004.42 exceeded the E. coli criterion of 235 cfu/100 ml. Applicable Water Quality Standards At the time of the initial listing of Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek segments, the Virginia Bacteria Water Quality Standard was expressed in fecal coliform �.• bacteria; however, the bacteria water quality standard has recently been changed, and is now expressed in E. coli. Virginia's bacteria water quality standard currently states that E. coli bacteria shall not exceed a geometric mean of 126 E. coli counts per 100 mL of water for two or more samples within a calendar month, or an E. coli concentration of 235 counts per 100 mL of water at any time. However, the loading rates for watershed - based modeling are available only in terms of the previous standard, fecal coliform bacteria. Therefore, the TMDL was expressed in E. coli by converting modeled daily fecal coliform concentrations to daily E. coli concentrations using an in -stream translator. This TMDL was required to meet both the geometric mean and instantaneous E. coli water quality standard. Watershed Characterization The land use characterization for the Rivanna River watershed was based on a combination of land cover data from the National Land Use Land cover data set (NLCD) using 2001 reference data and the Virginia Department of Forestry 2005 land use data. Executive Summary E-3 Dominant land uses in the watershed are forest (64%) and agriculture (21%). These account for a combined 85% of the total land area in the watershed. The potential sources of fecal coliform include run-off from livestock grazing, manure applications, industrial processes, residential, and domestic pets waste. Some of these sources are driven by dry weather and others are driven by wet weather. The potential sources of fecal coliform in the watershed were identified and characterized. These sources include permitted point sources, failed septic systems and straight pipes, livestock, wildlife, and pets. TMDL Technical Approach The Hydrologic Simulation Program -Fortran (HSPF) model was selected and used as a tool to predict the in -stream water quality conditions of the delineated watershed under varying scenarios of rainfall and fecal coliform loading. HSPF is a hydrologic, watershed -based water quality model. The results from the model were used to develop the TMDL allocations based on the existing fecal coliform load. Basically, this means 'fir►' that HSPF can explicitly account for the specific watershed conditions, the seasonal variations in rainfall and climate conditions, and activities and uses related to fecal coliform loading. The modeling process in HSPF starts with the following steps: • delineating the watershed into smaller subwatersheds • entering the physical data that describe each subwatershed and stream segment • entering values for the rates and constants that describe the sources and the activities related to the fecal coliform loading in the watershed The Rivanna River watershed was delineated into 41 smaller subwatersheds to represent the watershed characteristics and to improve the accuracy of the HSPF model. Of these 41 representing the entire Rivanna River watershed, 28 were within the bacteria impaired watershed. This delineation was based on topographic characteristics, and was created using a Digital Elevation Model (DEM), stream reaches obtained from the National Hydrography Dataset (NHD), and stream flow and in -stream water quality data. Executive Summary E-4 Stream flow data were available from the U.S. Geological Survey (USGS). Weather data were obtained from the National Climatic Data Center (NCDC). The data used in the model include meteorological data (hourly precipitation) and surface airways data (including wind speed/direction, ceiling height, dry bulb temperature, dew point temperature, and solar radiation). The period of January 1998 to December 2006 was used for HSPF hydraulic calibration and validation. The hydrologic calibration parameters were adjusted until there was a good agreement between the observed and simulated stream flow, thereby indicating that the model parameterization is representative of the hydrologic characteristics of the study areas. The model results closely matched the observed flows during low flow conditions, base flow recession and storm peaks. Instream water quality data for the calibration was retrieved from DEQ, and was evaluated for potential use in the set-up, calibration, and validation of the water quality model. The existing fecal coliform loading was calculated based on current watershed *64r conditions. Since Virginia has recently changed its bacteria standard from fecal coliform to E. coli the modeled fecal coliform concentrations were changed to E. coli concentrations using a translator. TMDL Calculations The TMDL represents the maximum amount of a pollutant that the stream can receive without exceeding the water quality standard. The load allocation for the selected scenarios was calculated using the following equation: Where, TMDL = Y WLA +Y, LA + MOS WLA = wasteload allocation (point source contributions); LA = load allocation (non -point source allocation); and MOS = margin of safety. Executive Summary E-5 The margin of safety (MOS) is a required component of the TMDL to account for any lack of knowledge concerning the relationship between effluent limitations and water quality. The MOS was implicitly incorporated in this TMDL. Implicitly incorporating the MOS required that allocation scenarios be designed to meet a 30 -day geometric mean E. coli standard of 126 cfu/100 mL and the instantaneous E. coli standard of 235 cfu/100 mL with 0% exceedance. Typically, there are several potential allocation strategies that would achieve the TMDL endpoint and water quality standards. A number of load allocation scenarios were developed to determine the final TMDL load allocation scenario. For the hydrologic period of January 2000 to December 2006, fecal coliform loading and instream fecal coliform concentrations were estimated for the various scenarios using the developed HSPF model of the Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek. After using the instream translator, the TMDL allocation plan was developed to meet geometric mean and instantaneous E. coli standards. Based on the load -allocation scenario analyses, the daily TMDL allocation plans that will meet the 30 -day E. coli geometric mean water quality standard of 126 cfu/100 mL and the instantaneous E. coli water quality standard of 235 cfu/100 mL are presented in Table E-1. Executive Summary E-6 EnNorth Fork Rivanna River, The summaries of the daily bacteria TMDL allocation plan loads for the Rivanna River err mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek are presented in Table E-2. Table E-3 summarizes n the yearly bacteria TMDL allocation plan loads. Table E-2: Rivanna River mainstem, North Fork Rivanna River, Preddy Meadow Plan Table E-1: Allocation Plan Loads for E. coli (% reduction) for the Rivanna River mainstem, Preddy sources) safety) do River, Beaver Creek VAV-H28R-RVNO 1 A00 Watershed Human Sources Livestock Agricultural Wildlife (failed septic (Direct and urban (Direct 9.88E+09 systems and Instream non point Instream straight pipes) Loading) sources Loading) Rivanna River 5.91E+10 Implicit 5.97E+10 Meadow Creek VAV-H28R-RVNOIA00 100% 100% 95% 76% North Fork Rivanna River 2.36E+10 Implicit 6.44E+10 Mechums River VAV-H27R-RRNO 1 A00 100% 100% 95% 92% Preddy Creeks and Tributaries 3.50E+10 Implicit 3.51 E+10 Beaver Creek VAV-H27R-PRDOIA00 100% 100% 95% 72% Meadow Creek 1.12E+10 Implicit 1.14E+10 VAV-H28R-MWCOIA00 100% 100% 95% 48% Mechums River VAV-H23R-MCM01 A00 100% 100% 95% 76% Beaver Creek VAV-H23R-BVR02A04 100% 100% 95% 66% The summaries of the daily bacteria TMDL allocation plan loads for the Rivanna River err mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek are presented in Table E-2. Table E-3 summarizes n the yearly bacteria TMDL allocation plan loads. Executive Summary E-7 Table E-2: Rivanna River mainstem, North Fork Rivanna River, Preddy Meadow Plan Loads for E. coli (efu/day) WLA (Point LA MOS Watershed (Nonpoint (Margin of Sources) TMDL sources) safety) Rivanna River VAV-H28R-RVNO 1 A00 3.72E+10 4.11 E+l 1 Implicit 4.48E+11 North Fork Rivanna River VAV-H27R-RRNO l A00 9.88E+09 1.62E+11 Implicit 1.72E+1 1 Preddy Creeks and Tributaries VAV-H27R-PRD01 A00 6.67E+08 5.91E+10 Implicit 5.97E+10 Meadow Creek VAV-H28R-MWC01 A00 4.08E+10 2.36E+10 Implicit 6.44E+10 Mechums River VAV-H23R-MCM01 A00 9.06E+07 3.50E+10 Implicit 3.51 E+10 Beaver Creek VAV-H23R-BVR02A04 2.60E+08 1.12E+10 Implicit 1.14E+10 Executive Summary E-7 on TMDL Implementation The Commonwealth intends for this TMDL to be implemented through best management practices (BMPs) in the watershed. Implementation will occur in stages. The benefits of staged implementation are: 1) as stream monitoring continues to occur, it allows for water quality improvements to be recorded as they are being achieved; 2) it provides a measure of quality control, given the uncertainties that exist in any model; 3) it provides a mechanism for developing public support; 4) it helps to ensure the most cost effective practices are implemented initially, and 5) it allows for the evaluation of the TMDL's adequacy in achieving the water quality standard. Table E-4 provides load reduction targets for staged implementation achieving a 10% instantaneous standard violation reduction for each TMDL watershed. While section 303(d) of the Clean Water Act and current EPA regulations do not require the development of TMDL implementation plans as part of the TMDL process, they do require reasonable assurance that the load and wasteload allocations can and will be implemented. Additionally, Virginia's 1997 Water Quality Monitoring Information and Restoration Act (the "Act") directs the State Water Control Board to "develop and implement a plan to achieve fully supporting status for impaired waters" (Section 62.1 - Executive Summary E -g E-3: Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries,Table ii and Beaver Creek TMDLPlan Loads i WLA (Point LA MOS Watershed Sources) (Nonpoint (Margin of TMDL sources) safety) Rivanna River VAV-H28R-RVNO 1 A00 4.93E+12 4.11 E+13 Implicit 4.60E+13 North Fork Rivanna River VAV-H27R-RRNO l A00 2,15E+12 1.54E+13 Implicit 1.75E+13 Preddy Creeks and Tributaries VAV-H27R-PRDO 1 A00 2.43E+11 5.58E+12 Implicit 5.83E+12 Meadow Creek VAV-H28R-MWCO l AOO 3.89E+12 2.23E+12 Implicit 6.12E+12 Mechums River VAV-H23R-MCMO l AOO 3.31E+10 3.31E+12 Implicit 3.34E+12 Beaver Creek VAV-H23R-BVR02A04 3.29E+10 1.07E+12 Implicit 1.10E+12 TMDL Implementation The Commonwealth intends for this TMDL to be implemented through best management practices (BMPs) in the watershed. Implementation will occur in stages. The benefits of staged implementation are: 1) as stream monitoring continues to occur, it allows for water quality improvements to be recorded as they are being achieved; 2) it provides a measure of quality control, given the uncertainties that exist in any model; 3) it provides a mechanism for developing public support; 4) it helps to ensure the most cost effective practices are implemented initially, and 5) it allows for the evaluation of the TMDL's adequacy in achieving the water quality standard. Table E-4 provides load reduction targets for staged implementation achieving a 10% instantaneous standard violation reduction for each TMDL watershed. While section 303(d) of the Clean Water Act and current EPA regulations do not require the development of TMDL implementation plans as part of the TMDL process, they do require reasonable assurance that the load and wasteload allocations can and will be implemented. Additionally, Virginia's 1997 Water Quality Monitoring Information and Restoration Act (the "Act") directs the State Water Control Board to "develop and implement a plan to achieve fully supporting status for impaired waters" (Section 62.1 - Executive Summary E -g 44.19.7). The Act also establishes that the implementation plan shall include the date of 11%W expected achievement of water quality objectives, measurable goals, corrective actions zm n necessary and the associated costs, benefits and environmental impacts of addressing the impairments. EPA outlines the minimum elements of an approvable implementation plan in its 1999 "Guidance for Water Quality -Based Decisions: The TMDL Process." The listed elements include implementation actions/management measures, timelines, legal or regulatory controls, time required to attain water quality standards, monitoring plans, and milestones for attaining water quality standards. Once developed, DEQ intends to incorporate the TMDL implementation plan into the appropriate Water Quality Management Plan (WQMP), in accordance with the Clean Water Act's Section 303(e). In response to a Memorandum of Understanding (MOU) between EPA and DEQ, DEQ also submitted a draft Continuous Planning Process to EPA in which DEQ commits to regularly updating the WQMPs. Thus, the WQMPs will be, among other things, the repository for all TMDLs and TMDL implementation plans developed within a river basin. Executive Summary E-9 s n Table Rivanna River mainstern, North ForkRivanna River, Preddy Creek and tributaries,r River,d Beaver Creek TMDLAllocation Scenario I% Instantaneous StandardViolation) violation of violation of Failed Direct NPS NPS Direct GM Inst. Watershed Septics & Livestock (Agricultural) (Urban) Wildlife standard standard standard Pipes 235 #/100m1 #/100m1 Rivanna River VAV-H28R- 100% 92% 0% 0% 0% 14.7% 10% RVNO l A00 North Fork Rivanna River VAV-H27R- 100% 100% 50% 58% 0% 21% 10% RRNO 1 A00 Preddy Creeks and Tributaries VAV-H27R- 100% 100% 50% 48% 0% 36.8% 10% PRDOlA00 Meadow Creek VAV-H28R- 100% 100% 0% 23% 0% 27% 10% MWCOI A00 Mechums River VAV-H23R- 100% 100% 55% 0% 0% 33% 10% MCMO 1 A00 Beaver Creek VAV-H23R- 100% 95% 0% 0% 0% 31.4% 10% BVR02A04 Executive Summary E-10 %W1 1.0 Introduction 1.1 Regulatory Guidance Section 303(d) of the Clean Water Act and the Environmental Protection Agency's (EPA's) Water Quality Planning and Management Regulations (40 CFR Part 130) require states to develop Total Maximum Daily Loads (TMDLs) for water bodies that are exceeding water quality standards. TMDLs represent the total pollutant loading that a water body can receive without violating water quality standards. The TMDL process establishes the allowable loadings of pollutants for a water body based on the relationship between pollution sources and in -stream water quality conditions. By following the TMDL process, states can establish water quality based controls to reduce pollution from both point and non -point sources to restore and maintain the quality of their water resources (EPA, 2001). The state regulatory agency for Virginia is the Department of Environmental Quality (DEQ). DEQ works in coordination with the Virginia Department of Conservation and Recreation (DCR), the Department of Mines, Minerals, and Energy (DMME), and the Virginia Department of Health (VDH) to develop and regulate a more effective TMDL process. DEQ is the lead agency for the development of TMDLs statewide, and focuses its efforts on all aspects of reduction and prevention of pollution to state waters. DEQ ensures compliance with the Federal Clean Water Act and the Water Quality Planning Regulations, as well as with the Virginia Water Quality Monitoring, Information, and Restoration Act (WQMIRA), passed by the Virginia General Assembly in 1997, and coordinates public participation throughout the TMDL development process. The role of DCR is to initiate non -point source pollution control programs statewide through the use of federal grant money. DMME focuses its efforts on issuing surface mining permits and National Pollution Discharge Elimination System (NPDES) permits for industrial and mining operations. Lastly, VDH monitors waters for fecal coliform, classifies waters for shellfish growth and harvesting, and conducts surveys to determine sources of bacterial contamination (DEQ, 2001). As required by the Clean Water Act and WQMIRA, DEQ develops and maintains a listing of all impaired waters in the state that details the pollutant(s) causing each Introduction 1-1 impairment and the potential source(s) of each pollutant. This list is referred to as the 303(d) List of Impaired Waters. In addition to 303(d) List development, WQMIRA directs DEQ to develop and implement TMDLs for listed waters (DEQ, 2001a). Once TMDLs have been developed, they are distributed for public comment and then submitted to the EPA for approval. 1.2 Impairment Listing Segments of Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek watersheds were listed as bacteria impaired on Virginia's 2002, 2004, and/or 2006 303(d) Total Maximum Daily Load Priority List and Reports due to violations of the state's water quality standard for fecal coliform bacteria and/ or E. coli. The impaired segments are located in the Rivanna River Basin in central Virginia (Figure 1-1). The watershed is located in the hydrologic unit (HUC) 02080204. The impaired watersheds include the City of Charlottesville and portions of Albemarle, Greene, Orange, and Nelson counties. The impaired segment of the Rivanna River (VAV-H28R-RVNOlA00) extends 5.28 miles along the mainstem from the confluence of the North Fork Rivanna River to Moores Creek. This segment of the Rivanna River was first listed in the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 2 out of 9 samples (22%) collected at listing station 2-RVN037.54 exceeded the E. coli criterion of 235 cfu/100 ml. The impaired segment of Beaver Creek (VAV-H23R-BVR02A04) extends 4.8 miles from its headwaters to Beaver Creek Reservoir. This segment of Beaver Creek was first listed on the 2004 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2004 assessment period (January 1998 through December 2002), 2 out of 16 fecal coliform samples (13%) collected at listing station 2-BVR005.70 exceeded the fecal coliform instantaneous standard of 400 cfu/100 ml. This segment remained on the 303(d) list in the 2006 Water Quality Assessment Report. Introduction 1-2 The impaired segment of Meadow Creek (VAV-H28R-MWCO l A00) extends 4.01 miles from its headwaters to the confluence of the Rivanna River. This segment of Meadow Creek was first listed on the 2002 303(d) Water Quality Assessment Integrated Report for exceedances of the fecal coliform standard. During the 2002 assessment period (January 1996 through December 2000), 4 out of 23 fecal coliform samples (17%) collected at listing station 2-MWC000.60 exceeded the fecal coliform instantaneous standard of 400 cfu/100 ml. The impaired segment of the Mechums River (VAV-H23R-MCMOIA00) extends 10.44 miles from the confluence of the Lickinghole Creek to the Moormans River. This segment of the Mechums River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 2 out of 18 samples (11 %) collected at listing station 2-MCM005.12 exceeded the E. coli criterion of 235 cfu/100 MI. The impaired segment of the North Fork Rivanna River (VAV-H27R-RRNO1 A00) extends 10.38 miles from the public water intake to the confluence of the Rivanna River. This segment of the North Fork Rivanna River was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of 9 samples (33%) collected at listing station 2-RRN002.19 exceeded the E. coli criterion of 235 cfu/100 ml. The impaired segment of Preddy Creek and its tributaries (VAV-H27R-PRDO l A00) extends 25.96 miles from its headwaters to the confluence of the Rivanna River. This segment of the Preddy Creek was first listed on the 2006 305(b)/303(d) Water Quality Assessment Integrated Report for exceedances of the E. coli standard. During the 2006 assessment period (January 2000 through December 2004), 3 out of the 9 samples (33%) collected at listing station 2-PRD000.21 exceeded the E. coli criterion of 235 cfu/100 ml. During this same period, only 1 out of the 9 samples (11%) collected at listing station 2- PRD004.42 exceeded the E. coli criterion of 235 cfu/100 ml. Introduction 1-3 SOW The total length of these six segments is approximately 61 miles. Table 1-1 summarizes the details of the impaired segments and Figure 1-1 presents their location. Table 1-1: II303(d) Impaired Segments within the Rivanna River Mainstem, North Fork Rivanna River, Preddy Creek i Tributaries,do Beaver Creek Watersheds TMDL ID Stream Name Miles Boundaries Station ID Impairment VAV-H23R- Beaver Creek 4.8 Headwaters to Beaver 2-BVR005.70 Fecal BVR02A04 Creek Reservoir Coliform VAV-H28R- Meadow Creek 4.01 Headwaters to Rivanna 2-MWC000.60 Fecal MWCOI A00 River Coliform VAV-H23R- Mechums 10.44 Lickinghole Creek to 2-MCM005.12 E. coli MCMOlAOO River Moormans River VAV-H27R- North Fork 10.38 Public water intake to 2-RRN002.19 E. coli RRNO1 A00 Rivanna River Rivanna River VAV-H27R- Preddy Creeks 25.96 Headwaters to NF 2-PRD000.21 E. coli PRDO1 A00 and Tributaries Rivanna River VAV-H28R- Rivanna River 5.28 NF Rivanna confluence 2-RVN037.54 E. coli RVNOlA00 to Moores Creek Introduction 1-4 Preddy Creek and Tribs 1 VAV-H27R_PRD01A00 . N.F. Rivanna River VAV-H27R-RRN01A00 Beaver Creek VAV-H23R-BVR02A04 Meadow Creek "�- VAV-H28R-MVVC01 AOQ �HATTESV LE Rivanna River F VAV-H28R-RVN01A00 Mechums River VAV-H23R-MCM01A00 Rivanna River Watershed Lake Monticello Legend nL.ap INDEX 303d Listed Segment o i z a aMiles Stream x1'ulnccl :J-4--1 H�h.p\apin-IN, Waterbodies rant;,-W—da. EGRI-R—U �— — County Boundary THE Louis Berger Group, u+c - - - Figure 1-1: Location of Bacteria Impaired Segments of the Rivanna River mainstem, North Fork Rivanna River, Preddv Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek Watersheds Introduction 1-5 1.3 Applicable Water Quality Standard Water quality standards consist of designated uses for a water body and water quality criteria necessary to support those designated uses. According to Virginia Water Quality Standards (9 VAC 25-260-5), the term "water quality standards means provisions of state or federal law which consist of a designated use or uses for the waters of the Commonwealth and water quality criteria for such waters based upon such uses. Water quality standards are to protect the public health or welfare, enhance the quality of water and serve the purposes of the State Water Control Law (§62.1-44.2 et seq. of the Code of Virginia) and the federal Clean Water Act (33 USC § 1251 et seq.)." 1.3.1 Designated Uses According to Virginia Water Quality Standards (9 VAC 25-260-10): "all state waters are designated for the following uses: recreational uses (e.g., swimming and boating); the propagation and growth of a balanced indigenous population of aquatic life, including game fish, which might be reasonably SW expected to inhabit them; wildlife; and the production of edible and marketable natural resources (e.g., fish and shellfish). " 1.3.2 Applicable Water Quality Criteria Effective January 15, 2003, DEQ specified a new bacteria standard in 9 VAC 25-260- 170.A, and also revised the disinfection policy in 9 VAC 25-260-170.B. These standards replaced the existing fecal coliform standard and disinfection policy of 9 VAC 25-260- 170. For a non -shellfish supporting waterbody to be in compliance with Virginia bacteria standards for primary contact recreation, the current criteria are as follows: "Fecal coliform bacteria shall not exceed a geometric mean of 200 fecal coliform bacteria per 100 mL of water for two or more samples taken over a calendar month nor shall more than 10% of the total samples taken during any calendar month exceed 400 fecal coliform bacteria per 100 mL of water. This criterion shall not apply for a sampling station after the [E. coli/ bacterial indicators have a minimum of 12 data points or after June 30, 2008, whichever comes first. " Introduction 1-6 "E. coli bacteria shall not exceed a geometric mean of 126 bacteria per 100 mL of water, for two or more samples taken during any calendar month nor should it exceed 235 counts per 100 mL of water for a single sample maximum value. No single sample maximum for E. coli shall exceed a 75% upper one-sided confidence limit based on a site-specific log standard deviation. If site data are insufficient to establish a site-specific log standard deviation, then 0.4 shall be used as the log standard deviation in freshwater. Values shown are based on a log standard deviation of 0.4 in freshwater. " These criteria were adopted because there is a stronger correlation between the concentration of E. coli and the incidence of gastrointestinal illness than with fecal coliform. E. coli are bacteriological organisms that can be found in the intestinal tract of warm-blooded animals. Like fecal coliform bacteria, these organisms indicate the presence of fecal contamination. For bacteria TMDL development after January 15, 2003, E. coli has become the primary applicable water quality target. However, the loading rates for watershed -based modeling are available only in terms of fecal coliform. Therefore, during the transition from fecal coliform to E. coli criteria, DCR, DEQ and EPA have agreed to apply a translator to in - stream fecal coliform data to determine whether reductions applied to the fecal coliform load would result in meeting in -stream E. coli criteria. The fecal coliform model and in - stream translator are used to calculate E. coli TMDLs (DEQ, 2003). The following regression based in -stream translator is used to calculate E. coli concentrations from fecal coliform concentrations: E. coli conc.c u/100 mL 2-001 12 x 0.91905 (f ) = [fecal coliform conc. (cfu/IOOmL)J For Rivanna River mainstem, North Fork Rivanna River, Preddy Creek and tributaries, Meadow Creek, Mechums River, and Beaver Creek, TMDLs are required to meet both the geometric mean and instantaneous criteria. The modeled daily fecal coliform concentrations are converted to daily E. coli concentrations using the in -stream translator. The TMDL development process also must account for seasonal and annual variations in precipitation, flow, land use, and pollutant contributions. Such an approach ensures that Introduction 1.7 TMDLs, when implemented, do not result in violations under a wide variety of scenarios %Awr that affect fecal coliform loading. M M Introduction 1-8 Section 8. Qualified personnel ,The following personnel are responsible for inspections; Josh Recter AG Dillard, INC 295 Memory Lane Troy, VA 22974 434-977-3750 Om M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 9. Signed Certification CERTIFICATION "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Owner/Operator Name: Company: Title: Signature: Date: h Recter AG Dillard, WC 295 Memory Lane Troy, VA 22974 434-977-3750 N Josh Recter AG Dillard INC VP Business.DevetwMnt .r Tccneri -- 100014 Stnnnwater Pollution Prevention Plan (SWPPP) Albernarle Countv Section 10. Delegation of authority. *4r (Provide the persons or positions with authority to sign inspection reports or to modify the stormwater pollution prevention plan. A formal, signed delegation of authority is needed.) Delegation of Authority ►, (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Construction General Permit, at the construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. (name of person or position) (company) (address) (city, state, zip) (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in the Construction General Permit (CGP), and that the designee above meets the definition of a "duly authorized representative". perator Name: Company: Title: Signature: Date: Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 11. General permit copy '""(Provide a copy of the construction general permit, 9VAC25-880) M M Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County Section 12. Inspection logs (Provide templates for your inspections. 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