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HomeMy WebLinkAboutWPO201500078 VSMP - SWPPP WPO VSMP 2018-08-13 COUNTY OF ALBEMARLE �„,0�Al. �i`� Department of Community Development 4!I i i . 401 McIntire Road,North Wing cy' � Charlottesville,Virginia 22902-4596 r' f Tel.(434)296-5832 • Fax(434)972-4126 a "',;,,''..Td", Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: North Pointe Development Sanitary Sewer Extension Albemarle County A1C`` A'RiT4y f yt VARIOC806 TOTAL LAND OF DEVEL68OPIA�ENT K a` RV _..... .._. NOT TO SCALE AIRPORT N ,S 9 p,A. PRENOUS DIST04201URBED AREA3)= 4..27 AC (MP50007 PROPOSED DISTURBED AREA- 16.1 AC (NPO#201500078) TOTAL DISTURBED AREA= 20.37 AC Prepared by: Okripe Townes Site Engineering 9850 Lori Road, Suite 201 Chesterfield, Virginia 23832 0111MOS .., �' SITE ENGINEERING APPROVED by the Albemarle County Prepared for: Community Development Department Date -i3-ie, Great Eastern Management rile LA)c O2o '78 2619 Hydraulic Road Charlottesville, Virginia 22901 GREAT EASTERN MANAGEMENT COMPANY ‘ionsie. SWPPP Preparation Date: June 2016 Revision Date: August 2018 (This document is to be made publicly available according to 9VAC25-880-70, Part II, section D) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County 11. GENERAL PERMIT COPY 11 12. INSPECTION LOGS 12 APPENDIX ITEMS TAB A. VICINITY MAP 13 B. SOILS INDEX AND MAP 14 C. CONSTRUCTION PLANS 15 D. DEQ WATER DIVISION GUIDANCE MEMO'S 16 a. GUIDANCE MEMO No. 14-2002(MARCH 7,2014) b. GUIDANCE MEMO No. 14-2014(AUGUST 25,2014) Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County r� Stale' Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County -•..• ..,,• u••uncu w• aw••i'Imams utow tai yca nvm a WnaUUGUu1I aRe a11421I ye IWteo in an attacnea list.) 7. If the discharge is through a Municipal Separate Storm Sewer System(MS4),the name of the municipal operator of the storm sewer:WA 8. Estimated Project Start Date(mm/dd/yyyy):01/02/2014 Estimated Project Completion Date(mm/dd/yyyy):06/30/2024 9. Total Land Area of Development(to the nearest one-tenth acre):268.00 Estimated Area to be Disturbed(to the nearest one-tenth acre): 267.00 10. Is the area to be disturbed by the construction activity part of a larger common plan of development or sale?YesO No0 11. Are nutrient offsets intended to be acquired for this activity?Yes[] NOD Under consideration JCI 12. A stormwater pollution prevention plan (SWPPP)must be prepared in accordance with the requirements of the General 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. 13. 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." ``�A Print Name:David G.,Mitcheli Title: As f Signature': �� —�- vv 1 Date: /Vfth (Please sign in INK.The person signing this form must be associated with the operator identified in Item#1 above.) Mail to: Department of Environmental Quality,_Office of Stormwater Manaaement_10t Fioor._P.Q. Box 1105, Richmond,VA 23218 (DEQ 199-146)(08/13) areas,excavated material disposal areas,borrow areas)located on-site Or offsite Section 13 Gertlfication provided that(a)The support activity is directly related to the construction site The operator identified In Section 1 of this Registration Statement is that is required to have general permit coverage for discharges of stonnwater responsible for certifying and submitting this Registration associated with construction activity;(b)The support activity is not a commerrtai Statement Please sign the form in INK. State statutes provide for operation serving multiple unrelated construction projects by different operators, severe penalties for submitting false information,State regulations require and does not operate beyond the completion of the construction activity at the this Registration Statement to be signed as follows: last construction project it supports;and(c)Appropriate control measures are Fora corporation:by a responsible corporate officer.For the purpose of this identified in a stormwater pollution prevention plan and implemented to address part,a responsible corporate officer means:(I)a president,secretary, 'he discharges*cm the support activity areas. treasurer,or vice-president of the corporation in charge of a principal business rovide the information required for each off-site support activity seeking � 'or any otherpersonperforms sur►ilar policy-making or decision- coverage.If an off-site support activity is going to be covered by this permit the making functions for the corporation;or(a)the manager of one or more total land area of the off-site support activity and area to be disturbed by the off- authorized production,or operating facilities,provided the manager is site support activity need to be included tri the Estimated Area to be Disturbed authorized to make management decisions that govern the operation of the (Section 8). regulated facility including having the explicit or implicit duty of making major Section 4 Status of Activity capital investment recommendations,and initiating and directing other Indicate the appropriate status(Federal,State,Public,or Private)of the comprehensive measures to assure long-term compiance with environmental activity. taws and regutaations;the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for Section 6 Nature of the Construction Project permitapplication requirements;and where authority to sign documents has Indicate the nature of the construction project (cornmenxal, residential, been assigned or delegated to the manager in accordance with corporate agricultural,of and gas,etc).This fist is not all inclusive, procedures. Section 6 Name of Receiving Water(s) For a partnership or sole proprietorship:by a general partner or the Enter the name of the receiving water(s) for all stormwater discharge(s), proprietor,respectively. including any stormwater discharges from off-site support activities to be Fora municipality,state,federal,or other public agency:by either a principal covered under the permit. Receiving waters identified as impaired on the executive officer or ranking elected official.For purposes of this part,a 2008 305(b)/303(d)Water Quality Assessment Integrated Report or for which principal executive officer of a public agency includes:(I)the chief executive a Total Maximum Daily Load(TMDL)Waste Load Allocation(N A)has been officer ofthe agency or(ii)a senior executive officer having responsibility for established for stomiwater discharges from construction activities shall be the overall operations of a principal geographic unit of the agency, noted. The Department of Environmental Quality reserves the right to request additional information not directly addressed by the Registration Statement if,in its discretion,a facility or operation noses a potential impact on water quality. (DEQ 199-146)(08/13) 1410rrr Name and Location Construction Activity: Name:North Pointe Development City:Charlottesville State:VA zip:22911 County:Albemarle Type of State Permit: 0 Construction Activity Individual Permit Q Construction Activity General Permit (from Fee Schedule) Type of Action: Q New Issuance ❑ Reissuance 0 Modification 0 Maintenance 0 Reinspection Amount of Fee Submitted (from Fee Schedule): $750 Existing Permit Number(if applicable): FOR DEQ USE ONLY Date: DC#: (DEQ 199-213)(08/13) TYPE OF STATE PERMIT MAINTENANCE Construction General/Stormwater Management—Phase I Land Clearing ("Large" Construction Activity—Sites or common plans of development or sale equal to or greater $0 than 5 acres) Construction General/Stormwater Management—Phase II Land Clearing("Small" Construction Activity—Sites or common plans of development or sale equal to or greater $0 Nrio than 1 acre and less than 5 acres) Construction General/Stormwater Management—Small Construction Activity/Land Clearing (Sites within designated areas of Chesapeake Bay Act localities with land $0 disturbance acreage equal to or greater than 2,500 square feet and less than 1 acre) Individual Permit for Discharges from Construction Activities $3,000 D. Reinspection Fee. The reinspection fee is required to be paid when the Department is required conduct a follow-up inspection based upon the findings of a previous inspection. TYPE OF FEE REINSPECTION Construction Activity Reinspection $125 (DEQ 199-213)(08/13) THESE ARE TRANSMITTED as checked below: ❑ For approval 0 Approved as submitted 0 Resubmit copies for approval ❑ For your use 0 Approved as noted 0 Submit copies for distribution ❑ As requested 0 Returned for corrections 0 Return corrected prints 0 For review and comment . ❑ FOR BIDS DUE 0 PRINTS RETURNED AFTER LOAN TO US REMARKS COPY TO SIGNED: i 1 y , If enclosures are not as noted,kindly notify us at once. Name:Norm ronc ravanna river-,iacoos rcun Name: HUG:0208020403031 JR11 HUC: 7. If the discharge is through a Municipal Separate Storm Sewer System(MS4),the name of the MS4 operator: N/A 8. Estimated Project Start and Completion Date: Start Date(mm/dd/yyyy):01/02/2014 Completion Date(mm/dd/yyyy):06/30/2024 ,.9. Total Land Area of Development(to the nearest one-hundredth acre):268.00 Estimated Area to be Disturbed(to the nearest one-hundredth acre):267.00 10. Is the area to be disturbed part of a larger common plan of development or sale? Yes❑ No Q✓ 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 imprisop •nt for Vowing t T 1fl violations."„ont Printed Name: CRv�.0 - el) Title:Oeve tcp «t/ M N'/5ge, Signature: Date: Sl//14i -(Please sign in INK. This Certification mut be signed by the appropriate person associated with the operator identified in Item#1.) 01/2014 Page 1 of 1 Name and Location of the Construction Activity: Name:North Pointe Development City: Charlottesville State:VA Zip:22911 ,r/County:Albemarle Type of State Permit: 0 Construction Activity Individual Permit ❑✓ Construction Activity General Permit (from Fee Schedule) Type of Action: 0 New Issuance Q Reissuance ❑ Maintenance 0 Modification ❑ Transfer Amount of Fee Submitted (from Fee Schedule):$9,600 Existing General Permit Registration Number(if applicable):VAR10C806 FOR DEQ USE ONLY Date: DC#: 01/2014 Page 1 of 1 >.,, .�.. :;la��-x .rcz. w.a .. .,:.-. 5-r ..r r r a• n h a r r a d o. . ..� ....r m�c b� _r �v,_• - il NORTH POINTE CHARLOTTESVILLE LLC 1663 u , GREAT EASTERN MANAGEMENT CO., AGENT ii PO BOX 5526 ! 0,1 CHARLOTTESVILLE,VA 22905 68-428/514 ;i DATE 4 .1 26502 i ` , _ TO THE ' e S ttre-r 4 /14� --I i ORDER OF 9, ( O0 • 00 ,r k;! `e � -- DO ARS a »W„.< t BB&T { BRANCH BANKING AND TRUST COMPANY w E;' CHARLOTTESVILLE,//�� VIR INIA -- tt ] ,, R` { FOR��lS� l SC i Ti's✓.— ur 0'00 16 6 30' 1:0 5 1 4 0 4 2 6 04: 5 2 3 5 4 0 5 6 3 80' THESE ARE TRANSMITTED as checked below: For approval Approved as submitted Resubmit copies for approval x For your use Approved as note Submit copies for distribution As requested Return for corrections Return corrected prints For review and comment Other: FOR BIDS DUE PRINTS RETURNED AFTER LOAN TO US REMARKS Mr. Hammond, Attached please find an amended 2014 reissunace registration statement along with W-9 form to amend the perm North Pointe Development. Thank you for your assistance with this project! COPY TO SIGNED Mona Gabriel, P.E. Some xi rw/xn %JOu lel L' 10o1.v.o19mu ICJ.LIJI Sent: TuesdayFebruary 24, 2015 3:37 PM To: Hammond, Drew (DEQ) Cc: 'David 'Brian Mitchell' Subject: FW: Permit Modification ' Hammond' Ii' ~"ntedtosendyouthpemai| below that | received from Holly Sepety in reference to the permit modification for North Pointe. I sent Ms. Sepety an email yesterday to verify the fee amount for the permit modification and I received the email below. | think that Ms. Sepety is not aware of the decision that was made on how to handle the permit modification for North Pointe. | will give you a call to discuss the best way to handle the permit modification process and see what the steps that we need to take are. Thank you, Mona Gabriel, P,E. Townes Site Engineeng (804)920-1459 From: Sepety, Holly(DEO) [nnaiko:Hoh. .vinginka.gov] Sent: Tuesday, February 24, 2015 7:14 AM To: Mona Gabriel Subject: RE: Permit Modification 10: sepety, nouy (utt4) Subject: Permit Modification Hi Holly, Hope all is well. I left a message on your voice mail earlier today and thought I'd follow up with this email. We are getting ready to submit a revised registration statement for permit No.VAR10C8O6 to modify the disturbed area to be ./for the first phase of the project as opposed to the overall anticipated disturbed area.The disturbed area on the tiKrent permit is 267 acres and we are revising it to be 4.27 acres. Since the permit modification is to reduce the disturbed area will the fee be only for the permit modification ($200 for sites with land disturbance acreage equal to or greater than one acre and less than five acres).Could you please confirm the fee amount or let me know if I got it wrong. Thank you, Mona Gabriel, P.E. Project Manager 9850 Lori Road.Suite 201 Chesterfield.VA 23832 Office:(804)748-9011 Ext.297 Cell:(804)920-1459 Fax:(804)748-2590 w w w.COON nes.com "(Townes 2 Name:North Fork Rivanna River-Jacobs Run Name: HUC:020802040303/JR11 HUC: 7. If the discharge is through a Municipal Separate Storm Sewer System(MS4),the name of the MS4 operator: N/A 8. Estimated Project Start and Completion Date: Start Date(mm/dd/yyyy):05/01/2015 Completion Date(mm/dd/yyyy):06/30/2024 14410,A3. Total Land Area of Development(to the nearest one-hundredth acre):268.00 Estimated Area to be Disturbed(to the nearest one-hundredth acre):4.27 10. Is the area to be disturbed part of a larger common plan of development or sale? Yes❑✓ No❑ 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." elves-44 �f�� Printed Name. D4V''G X- 1 .t.r ) 1-- Title: 00e4Signature Date: .31-7/ .5"- (Please sign in INK. This Certification must be signed by the appropriate person associated with the operator identified in Item#1.) 01/2014 Page 1 of 1 r+' accompany the Registration Statement. does not operate beyond the completion of the construction activity it supports; (iv) the support activity is identified in the registration 2. Existing Construction Activities. Any operator that was statement at the time of general permit coverage; (v) appropriate authorized to discharge under the general permit issued in 2009, control measures are identified in a SWPPP and implemented to and who intends to continue coverage under this general permit, address the discharges from the support activity areas: and (vi) all shall submit a complete Registration Statement to the Department applicable state, federal, and local approvals are obtained for the on or before June 1,2014,unless exempted by Section B above. support activity. 0.Where to Submit Registration Statements. Provide the official name,street address(if available), City and County (if not located within a City) of all off-site support activities to be 114111...'All Registration Statements should be submitted to: covered under this general permit. Also, provide the latitude and longitude in decimal degrees of the approximate center of the off-site Department of Environmental Quality support activities (e.g., N 37.5000, W 77.5000) Also, if an off-site Office of Stormwater Management,10th Floor support activity is going to be covered under this general permit the P.O.Box 1105 total land area of the off-site support activity and the estimated area to Richmond,VA 23218 be disturbed by the off-site support activity need to be included in Item #9. LINE-BY-LINE INSTRUCTIONS Item 4:Status of the Construction Activity. Item 1:Construction Activity Operator Information. Indicate the appropriate status (Federal, State, Public, or Private) of "Operator" means the owner or operator of any facility or activity the construction activity. subject to the Stormwater Management Act and regulations. In the context of stormwater associated with a large or small construction Item 5:Nature of the Construction Activity. activity, operator means any person associated with a construction project that meets either of the following two criteria:(i)the person has Provide a brief description of the construction activity, such as direct operational control over construction plans and specifications, commercial, residential,agricultural,oil and gas,etc. This list is not all including the ability to make modifications to those plans and inclusive. specifications or (ii) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance Item 6:Receiving Waters(s)and HUC Information. with a stormwater pollution prevention plan for the site or other state permit or VSMP authority permit conditions(i.e.,they are authorized to Provide the name of the receiving water(s)and corresponding HUC for direct workers at a site to carry out activities required by the all stormwater discharges including any stormwater discharges from off-site support activities to be covered under this general permit. 01/2014 Page 1 of 2 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(VAR10)prior to submitting this Registration Statement. By signing this Registration Statement the operator is certifying that the SWPPP has been prepared. Item 12:Certification. property authorized individual associated with the operator identified in Item 1 of the Registration Statement is responsible for certifying and signing the Registration Statement. Please sign the Registration Statement in INK. State statutes provide for severe penalties for submitting false information on the Registration Statement. State regulations require that the Registration Statement be signed as follows: a. For a corporation: by a responsible corporate officer. For the purpose of this part,a responsible corporate officer means: (i) A president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function,or any other person who performs similar policy-making or decision-making functions for the corporation,or (ii) the manager of one or more manufacturing, production. or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to 01/2014 Page 2 of 2 3. I am a U.S.citizen or other U.S.person(defined below),and 4.The FATCA code(s)entered on this form(if any)indicating that I am exempt from FATCA reporting is correct. Certification instructions.You must cross out item 2 above if you have been notified by the IRS that you are currently subject to backup withholding because you have tailed to report all interest and dividends on your tax return.For real estate transactions,item 2 does not apply.For mortgage interest paid,acquisition or abandonment of secured property,cancellation of debt,contributions to an individual retirement arrangement(IRA),and generally,payments other than interest and dividends,you are not required to sign the certification,but you must provide your correct TIN.See the instructions on page 3. Sign 1Signature of .__ ,�—+ �1 } `J Here U.S.person = ✓./ !/ J Date l• f • General Instructions witi.holding tax on foreign partners'share of effectively connectfrd income,and Section references are to the Internal Revenue Code unless otherwise noted. 4.Certify that FATCA code(s)entered on this form(it any)indicating that you are exempt from the FATCA reporting,is correct. Future developments.The IRS has created a page on IRS.gov for information Note.If you are a U.S.person and a requester gives you a form other than Form about Form W-9,at www.irs.govlw9.Information about any future developments W-9 to request your TIN,you must use the requester's form if it is substantiahy affecting Form W-9(such as legislation enacted after we release it)will be posted similar to this Form W-9. on that page. Definition of a U.S.person.For federal tax purposes,you are considered a U.S. Purpose of Form person if you are: A person who is required to file an information return with the IRS must obtain your •An individual who is a U.S.citizen or U.S.resident alien, correct taxpayer identification number(TIN)to report,for example,income paid to •A partnership,corporation,company,or association created or organized in the you.payments made to you in settlement of payment card and third party network United States or under the laws of the United States, transactions,real estate transactions,mortgage interest you paid,acquisition or •An estate(other than a foreign estate).or abandonment of secured property.cancellation of debt,or contributions you made to an IRA. •A domestic trust(as defined in Regulations section 301.7701-7). Use Form W-9 only if you are a U.S.person(including a resident alien).to Special rules for partnerships.Partnorsh ps that conduct a trade or business in provide your correct TIN to the person requesting it(the requester)and,when the United States are generally required to pay a withholding tax under section applicable,to: 1446 on any foreign partners'share of effectively connected taxable income from such business.Further,in certain cases where a Form W-9 has not been received, 1.Certify that the TIN you are giving is correct(or you are waiting for a number the rules under section 1446 require a partnership to presume that a partner is a to be issued), foreignperson,and g pay the section 1446 withholding tax.Therefore,if you are a 2.Certify that you are not subject to backup withholding,or U.S.person that is a partner in a partnership conducting a trade or business in the 3.Claim exemption from backup withholding it you are a U.S.exempt payee.If United States,provide Form W-9 to the partnership to establish your U.S.status applicable,you are also certifying that as a U.S.person,your allocable share of and avoid section 1446 withholding on your share of partnership income. any partnership income from a U.S.trade or business is not subject to the Cat.No.10231X Form W-9(Rev.8-2013) Email address (if available): `"`"' ""'"*'`'"•"`#'" Name and Location of the Construction Activity: Name: North Pointe Development ..,y: Charlottesville State: VA zip:22911 bounty:Albemarle Type of State Permit: C Construction Activity Individual Permit Q Construction Activity General Permit (from Fee Schedule) Type of Action: C New Issuance ❑ Reissuance ❑ Maintenance ✓❑ Modification ❑ Transfer Amount of Fee Submitted (from Fee Schedule): N/A per Drew Hammond's email dated 2/26/15 Existing General Permit Registration Number(if applicable):VAR1 OC806 FOR DEQ USE ONLY Date: j DC #: 01/2014 Page 1 of 1 .�a+..v..... .ua.....,...-amu.y., vvuu..a.a,uv..r-.w r lap a_mw vrvwn by i,.'iaw vi CU COO YVNl illi $9'600 common plans of development or sale with land-disturbance acreage equal to or greater than 100 acres) The fee for filing a state permit application (registration statement)for coverage under a Construction Activity General Permit issued by the Board for a state or federal agency that administers a project in accordance with approved annual standards and specifications is as follows: YPE OF STATE PERMIT ISSUANCE Construction General/Stormwater Management—Phase I Land Clearing("Large"Construction Activity— $750 Sites or common plans of development or sale equal to or greater than 5 acres) Construction General/Stormwater Management—Phase II Land Clearing("Small"Construction Activity— $450 Sites or common plans of development or sale equal to or greater than 1 acre and less than 5 acres) 01/2014 Page 1 of 2 TYPE OF STATE PERMIT MAINTENANCE General/Stormwater Management—Small Construction Activity/Land Clearing(Areas within common $50 plans of development or sale with land disturbance acreage less than one acre) ciokorn ,eneral/Stormwater Management—Small Construction Activity/Land Clearing(Sites or areas within common plans of development or sale with land-disturbance acreage equal to or greater than one and less $400 than five acres) General I Stormwater Management—Large Construction Activity/Land Clearing(Sites or areas within common plans of development or sale with land-disturbance acreage equal to or greater than five acres and $500 less than 10 acres) General/Stormwater Management—Large Construction Activity/Land Clearing(Sites or areas within common plans of development or sale with land-disturbance acreage equal to or greater than 10 acres and $650 less than 50 acres) General/Stormwater Management—Large Construction Activity/Land Clearing(Sites or areas within common plans of development or sale with land-disturbance acreage equal to or greater than 50 acres and $900 less than 100 acres) General/Stormwater Management—Large Construction Activity/Land Clearing(Sites or areas within $1,400 common plans of development or sale with land-disturbance acreage equal to or greater than 100 acres) Individual Permit for Discharges from Construction Activities $3,000 01/2014 Page 2 of 2 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County nonpoint nutrient offsets or other off-site options achieve the necessary nutrient reductions PRIOR TO THE COMMENCEMENT OF THE PERMITTEE'S LAND DISTURBING ACTIVITY. A copy of the General Permit is available on the DEQ web page at http://www.deq.virginia.gov/Portals/0/DEQ/Water/Publications/CGPvarlo.pdf. Print the VAR10 permit and read it carefully as you are responsible for meeting all the permit conditions.The General Permit will expire on June 30,2014. ,Your project specific permit registration number is VAR10C806. A copy of this permit coverage letter,registration statement,copy of the VAR10 permit,and the project's Stormwater Pollution Prevention Plan(SWPPP)must be at the construction site from the date of commencement of the construction activity to fmal stabilization. In addition,DEQ staff conduct periodic site inspections for compliance with the permit. Additional information is available on the DEQ webpage at: http://www.deq.virginia.gov/programs/water/stormwatermanagement/vsmppermits/constructiongeneralpermit.aspx. For questions,contact the Permit Processor at(804)698-4039. Sincerely, / effalleZe? • 411 Frederick K.Cunningham,Director Office of Water Permits The general permit contains the applicable Stormwater Pollution Prevention Plan (SWPPP) requirements and other conditions of coverage. Please print the general permit and read it carefully as you will be responsible for compliance with all permit conditions. The general permit requires that you update your SWPPP to incorporate the changes that the Department made for this permit reissuance. Please update the SWPPP as soon as possible but no later than sixty (60)days from the date of this letter. DEQ staff has determined that the proposed land-disturbing activity will discharge to a surface water identified as impaired or for which a TMDL wasteload allocation has been established and approved prior to the term of the general permit for (i) sediment or a sediment-related parameter or (ii) nutrients. Therefore, the following general permit(Part 1.8.4) and SWPPP requirements(Part ll.A.5) must be implemented for the land-disturbing activity: • Permanent or temporary soil stabilization shall be applied to denuded areas within seven (7) days after final grade is reached on any portion of the site; • Nutrients (e.g., fertilizers) shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; • Inspections shall be conducted at a frequency of (I) at least once every four (4) business days or (ii) at least once every(5) 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 • Representative inspections used by utility line installation; pipeline construction, or other similar linear construction activities shall inspect all outfalls. �rr�' i I i a r I ‘11rr' 1411111101 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County „.../ _ _ — 4 _ 4. , . 4 r I 1 i t •0 A ?;,..:F., it *0q5Q,4.1 *.,-4 ; ,----i---ll • / ,1 i! -4--- . • xo , 2P> •=4, :... .; , il.t7.4 L ---- -ell , g ,17. / q ish g-,..--"*',''''=,"..,--2 i'•;,7'..2 e — --- ', •c' 1 ...' 1 , . ,,, I , , --ttft,i4.,..i, 47,•,../.- .4:.-„,..;;;••. - , r . lrpr 'c': - 4: g • • •. 1 1 ' # . , tF'', ' . :#. ,- . ----: I .# , . . 1V - -, -, . . i' . 4 0 TCH TOP II re •41 we a MB 114.1g;igi.i4,g11§'110 ilk4?•;!, : „..Y _ I i i — ' , , c'„Ti..t i k REP R 2=_t • 0. 1 ; 51Z11'154 4.64; , ? , ) I . _ .7... , 4 , G igl41.1 lAi 4 P:‘ . , # < ...,.• ' f i 1 I , , I , • a • ' • ' 1 / i 0 . • a 6 .1 , . , .E. / * 1- , , , , ,. ,, .0 4t , ,.,-.;;',..- ' ‘,...r.. 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[ i 4 ;$ % t gt3it ..4,v 1 5 ,., 7,, i. 1 11 ii g 7;e:A 42 '.. . i ,,, , g a4 0 ei.i 7 i' Pli l' 0 Illt -1:' - 1 / A ib. eN P`S, e..\ ( ,, NORTH POINTE .,-, MIDDLE ENTRANCE 1 .'b'R''13 ‘S-,, Town es & RT 29 IMPROVEMENTS I , A' ,,,Er SITE ENGINEERING .:".,, RIVANNA DISTRICT '' ''',..A ; ) "6" - P .* I, 6';`4 - 9850 Lori Road, Suite 201 .* t, ?* ALBEMARLE COUNTY. VIRGINIA - ;16 , Chesterfield, Virginia 23832 - I -\ • ., s , 70 c ....,-/ Phone:(804) 748-9011 Fax: (804) 748-2'90 *1 EROSION & SEDIMENT CONTROL—PHAS L,' II ...- ASK US HOW Company Website: www.cctownes.com This growing and The*Ingo shown. the property of Ton , Th Engineering the reproThIchon. copying or other oat of Is.,Mewing without their written consent. prohrhterl I r d IF y 41,,,gemeot eal baa ',Threat to legol anon C) NIA Townes Site Engsneerhg Section 5. Stormwater Management Plan North Pointe—Middle Entrance and Route 29 Road Improvements This project involves the disturbance of 21.6 acres. A SWM/BMP (SWM 2 on the approved Zoning Application plan) is proposed with this project to address the Stormwater Management and CBPA requirements for the project area. The basin will act as a sediment basin during construction to address the sediment control needs for the current and future construction sites and it will be converted to a permanent SWM/BMP facility after the upslope land activities are complete and upstream sites are stabilized. The SWM/BMP facility has been designed to control the post development 2 and 10 year storm events to reduce the post developed runoffs to the 2 and 10 year storm events pre-developed rates. The SWM/BMP is designed to meet the water quality requirement for the future commercial sites. The anticipated removal requirement for the future sites is 4.58 pounds/year. Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County consult the locality for proper determination of this value. STEP 2 Determine the average land cover condition (Iwatershed) or the existing impervious cover(Iexisting)• Average land cover condition(Iwatershedl: If the locality has determined land cover conditions for individual watersheds within its jurisdiction, use the watershed specific value determined by the locality as Iwatershed• __ 16 0 'watershed 0 Otherwise, use the Chesapeake Bay default value: w = oatershed �� 5D-5 STEP 3 Determine the appropriate development situation. The site information determined in STEP 1 and STEP 2 provide enough information to determine the appropriate development situation under which the performance criteria will Sir,/ apply. Check ( ) the appropriate development situation as follows: Situation 1: This consists of land development where the existing percent impervious cover(Iexisting) is less than or equal to the average land cover condition ('watershed) and the proposed improvements will create a total percent impervious cover(Ipost) which is less than or equal to the average land cover condition (Iwatershed). 0 0 Ipost Yo 'watershed �o 5D-6 density development is considered to be the BMP and no pollutant removal is required. The calculation procedure for Situation 1 stops here. If the proposed development meets the criteria for development Situations 2,3, or 4, then proceed to STEP 4 on the appropriate worksheet. 5D-7 'watershed = average land cover condition for specific watershed or locality or the Chesapeake Bay default value of 16% (percent expressed in whole numbers) A = applicable area (acres) Lpre(watershed)= [0.05 + (0.009 x 16 )] X 11 .17 x 2.28 ``, 4.94 pounds per year 5D-9 pounds per year STEP 7 Identify best management practice(BMP) for the site. 1. Determine the required pollutant removal efficiency for the site: EFF = ( RR± Lpos,) x 100 (Equation 5-22) where: EFF = required pollutant removal efficiency (percent expressed in whole numbers) RR = pollutant removal requirement (pounds per year) Lpo„ = relative post-development total phosphorous load(pounds per year) EFF = ( 4.58 _ 9.52 ) x 100 48 5D-10 Sarre pounds per year LBMPi = [0.05 + (0.009 x )] x x 2.28 pounds per year SIMr/ LBMP3 = [0.05 + (0.009 x )] x x 2.28 pounds per year 5D-11 Lremoved/BMPI =pollutant load removed by proposed BMP No. 1 Lremoved/BMp2 =pollutant load removed by proposed BMP No. 2 Lremoved/BMP3 =pollutant load removed by proposed BMP No. 3 _ 4.58 Lremoved/total + + + . . . 4.58 pounds per year 6. Verify compliance: Lremoved/total RR 4.58 4.58 Water Quality Volume Calculations: Anticipated future Impervious Area = 4.0 Acres VWQ(ft3) = 4.00 (AC) x 43560 x 0.5 / 12 = 7,260 ft3 4 x VWQ(ft3) = 29,040 ft3 5D-12 /2\ SWM/BMP 2 Subcat Reach on. Link Routing Diagram for NP_SWM-BMP 2 Prepared by{enter your company name here}, Printed 5/24/2016 HydroCAD®10.00-13 s/n 06356 ©2014 HydroCAD Software Solutions LLC nyuiuyiaRii 21 ( ❑ Runoff 20 19.01 cfs '9= Type II 24-hr 17 2-Year Rainfall=3.62" ,6= 15= Runoff Area=8.830 ac 14: / Runoff Volume=1 .169 of 13= 12 11_= Runoff Depth=1 .59" Flow Length=1,060' LL 9- 6= / Tc=13.3 min CN=78 4 3 2 O 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 Time (hours) 4J0.V1 LJ, IV/ 44,4 14 I IO,VL/ 437.00 25,129 24,148 142,175 438.00 27,140 26,135 168,310 Device Routing Invert Outlet Devices #1 Primary 429.00' 30.0" Round Culvert L= 51.7' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 429.00' /427.00' S= 0.0387 '/' Cc= 0.900 n= 0.013, Flow Area= 4.91 sf #2 Device 1 433.50' 6.0" Vert. Orifice C= 0.600 #3 Device 1 436.00' 48.0" Horiz. Riser C= 0.600 Limited to weir flow at low heads #4 Secondary 436.50' Emergency Spillway, Cv= 2.68 (C= 3.35) Head (feet) 0.00 1.50 Width (feet) 10.00 19.00 Primary OutFlow Max=1.07 cfs @ 13.70 hrs HW=435.03' (Free Discharge) L =Culvert (Passes 1.07 cfs of 51.68 cfs potential flow) 2=Orifice (Orifice Controls 1.07 cfs @ 5.45 fps) 3=Riser ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=434.00' (Free Discharge) 4=Emergency Spillway ( Controls 0.00 cfs) Total 438 ❑Primary '' rrr 01 P E3 Secondary Ailf 437 //�/� Emer9ency Spillway 436 % / 435 Orifice 434 0 433 d Lu 432 431 430 Culvert 429 0 2n 40 60 80 100 120 140 Discharge (cfs) r.• u Runoff 40 37.24 cfs 38 v 36 / Type II 24-hr 32 10-Year Rainfall=5.46" 30 Runoff Area=8.830 ac 26 / Runoff Volume=2.286 of w 24 22 Runoff Depth=3.11 " ° 20 / LL 18 Flow Length=1 ,060' 16 Tc=13.3 min 14 / 12 / CN=78 10 8 6 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 Time (hours) /4koplr *44rr' '+JU.UU LJ, IU/ LL,L I'F I IO,UL/ 437.00 25,129 24,148 142,175 438.00 27,140 26,135 168,310 Device Routing Invert Outlet Devices #1 Primary 429.00' 30.0" Round Culvert L= 51.7' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 429.00' /427.00' S= 0.0387 '/' Cc= 0.900 n= 0.013, Flow Area= 4.91 sf #2 Device 1 433.50' 6.0" Vert. Orifice C= 0.600 #3 Device 1 436.00' 48.0" Horiz. Riser C= 0.600 Limited to weir flow at low heads #4 Secondary 436.50' Emergency Spillway, Cv= 2.68 (C= 3.35) Head (feet) 0.00 1.50 Width (feet) 10.00 19.00 Primary OutFlow Max=4.10 cfs @ 12.63 hrs HW=436.16' (Free Discharge) 4-1=Culvert (Passes 4.10 cfs of 57.46 cfs potential flow) 12=Orifice (Orifice Controls 1.47 cfs © 7.48 fps) 3=Riser (Weir Controls 2.64 cfs @ 1.31 fps) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=434.00' (Free Discharge) 4=Emergency Spillway ( Controls 0.00 cfs) t §i Total 430 r f_/ §i Primary I ■Secondary 437 Z-/"'Emer9ency Spillway 436 j 435 434 � Orifice o i 433 _d w 432 431 430 Culvert 429 0 20 40 60 80 100 120 140 Discharge (cfs) nyuroyraprI 80 ❑ Runoff 73.68 cfs 75 V 70 Type II 24-hr 65 / 100-Year Rainfall=8.95" 60 Runoff Area=8.830 ac 55 50 / Runoff Volume=4.618 of 45 Runoff Depth=6.28" 40 / Flow Length=1 ,060' LL 35 30 Tc=13.3 min 25 / 20 //, CN=78 15 10 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 Time (hours) '+JV.VU LJ, IV/ LL,L I'+ I IO,UL/ 437.00 25,129 24,148 142,175 438.00 27,140 26,135 168,310 Device Routing Invert Outlet Devices #1 Primary 429.00' 30.0" Round Culvert L= 51.7' RCP, square edge headwall, Ke= 0.500 Inlet/ Outlet Invert= 429.00' /427.00' S= 0.0387 '/' Cc= 0.900 n= 0.013, Flow Area= 4.91 sf #2 Device 1 433.50' 6.0"Vert. Orifice C= 0.600 #3 Device 1 436.00' 48.0" Horiz. Riser C= 0.600 Limited to weir flow at low heads #4 Secondary 436.50' Emergency Spillway, Cv= 2.68 (C= 3.35) Head (feet) 0.00 1.50 Width (feet) 10.00 19.00 Primary OutFlow Max=40.66 cfs @ 12.15 hrs HW=436.97' (Free Discharge) 4-1=Culvert (Passes 40.66 cfs of 61.25 cfs potential flow) -2=Orifice (Orifice Controls 1.70 cfs @ 8.63 fps) 3=Riser (Weir Controls 38.96 cfs @ 3.21 fps) Secondary OutFlow Max=11.82 cfs @ 12.15 hrs HW=436.97' (Free Discharge) 4=Emergency Spillway (Weir Controls 11.82 cfs © 2.23 fps) Total 438 Primary I Secondary _ _1 437 r.% O/ Emer9ency Spillway 436 j '" 435 %/' '{ • 434 z e' Orifice o � i. dT. 433 w 432 l jam' ,`:. 431 0, 430 0Culvert 429 0 20 40 60 80 100 120 140 Discharge (cfs) Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County i ,1 7) 2t; ' r 1'..., 1;414 Sit.r.t.,....3!fl it; ;r.L, ,,,..,..,_ p, G ..::::-.;‘-x--'d -,, ,,,,-"'" "'"3.,, ,,1 , ,..\ ), - , . ._, ,,,t..3D , zii1,6 ,g,.1i, 1 ' / 2g4.tgg. 8 to h. \ ; 1' >it g 1. 8 i 5 ' . _.----- MATCH ABOVE „ � _ t 1 �. 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Sources of Pollutants,locations, and prevention practices Pollutant,or Pollutant Location on site Prevention Practices, Generating Activity Control Measures Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County substantial amount of runoff from upland areas and does not drain directly to a waterway. Containers have lids covered Current designated container areas on before periods of rain,or are in a covered Solid waste disposal plan 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 equipment 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 Provide double walled tanks,a lined Fueling Fueling station containment area,drip pans,and spill prevention and cleanup materials. 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. Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Phone#: E-Mail Address: Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County - --- -r r r -o -----or-- ----- Report all spills, leaks and discharges as follows: 1. Contact the Department of Environmental Quality and the permit issuing authority immediately. 2. This document must be reviewed by the operator to identify measures to prevent the reoccurrence of such releases and to respond to such releases, and the plan must be modified where appropriate within seven calendar days of knowledge of a release. Recommended state and local emergency contacts for incident reporting: State Contacts Normal Working Hours Nights, Holidays & Weekends DEQ Valley Regional Office VA Dept. of Emergency Management 540-574-7800 24 Hour Reporting Service 804-674-2400 Local Contacts Albemarle Co./Community Development(Normal Business) 434-296-5832 Local Fire Department 911 Local Police Depai tment 911 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County roofing materials, adhesives,concrete admixtures; (ii)pesticides,herbicides, insecticides, fertilizers, and landscape materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, styrofoam, concrete, and other trash or building materials; f. Prevent discharges of fuels,oils,and other petroleum products,hazardous or toxic waste,and sanitary wastes; and g. Persons responsible for pollution prevention practices shall prevent any other discharges from potential pollutant generating activity not addressed above. Anyone involved in activities described in items a—g above shall be trained in pollution prevention practices and procedures. It is the responsibility of the RLD or other site authority to ensure that all personnel are adequately trained. Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County ifr,,c, ., 4 -- , :// Fp.,2, ' / d 7-''''': .., ..::,,, ' ''' ,- . / / ,.... ,, -.. - / e V ,. ::A.'V/ -"Ait. ' .": ..e' ' ''jf#ITA ' Iv,.1,-ii.'" l'ereA • ' ir/f;:::' 1' ':41 ,,f "%PC,"4,, * '' ty,: .`;;:',:44 ' 17-.:1,-:;*,, , : / ', / ' '' •-*/' 2"// -.*:,,,,t '''''''''5:1;,* .:;'''$' 'P: , ' ', ' /, ',),3.44.4' / * '''' .'« ''''' ../,/e, .,,, ,„,,,,,, ;,..., ,,,t, ,,,,, ,,„...,,,,7 ,. ,„,,,,,,,,,,, :: ,/,../ . / ,,,,..- 7 ,,)„,..,. ..,,, 4#914 ,.,* 4L,, '.., ,i,P'• ..,,,./ „' /,-;le ' „,?' - ;„ /ity/. '_./.'' / g 41140i: e' 'Or*i; ' AC,'<:// ,0,;', ' . `.. / ,,�, r r, `=-,/,‘4, ,',r/ http:llwww.deq.virginia.goyim app er_ext/Output/mapExport ff75e9da74d54932b64a9Ic7... 2/27/2015 Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Title: Erosion Control Inspector Company: Townes Site Engineering Address: 9850 Lori Road, Suite 201, Chesterfield,VA 23832 done#: (804) 748-9011 E-Mail Address: sbvrd@cctownes.com Qualifications: ❑ Responsible Land Disturber# X Certified ESC Inspector# 6155 (exp 5/31/2017) ❑ Certified SWM Inspector# ❑ Licensed Professional(P.E.,L.S., etc.) ❑ Other: Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County 14.11I1}101iy. t • 7- —co ,r(V,v0r v-.-.-• Title: Qom' Signature: Date: c.3 21/ Ikkori Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP)Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County ne autnonzea aiscnarge snail oe in accoraance witn tnis cover page, rant i - uiscnarge Hutnonzation and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part Ill - Conditions Applicable to All VPDES Permits as set forth herein. Slaw' 1. Post-construction discharges. This general permit does not authorize stormwater discharges that originate from the site after construction activities have been completed and the site, including any support activity sites covered under the general permit registration, has undergone final stabilization. Post-construction industrial stormwater discharges may need to be covered by a separate VPDES permit. 400.1 2. Discharges mixed with nonstormwater. This general permit does not authorize discharges that are mixed with sources of nonstormwater, other than those discharges that are identified in Part I E (Authorized nonstormwater discharges) and are in compliance with this general permit. 3. Discharges covered by another state permit. This general permit does not authorize discharges of stormwater from construction activities that have been covered under an individual permit or required to obtain coverage under an alternative general permit. 4. Impaired waters and TMDL limitation. Discharges of stormwater from construction activities to surface waters identified as impaired in the 2012 § 305(b)/303(d) Water Quality Assessment Integrated Report or for which a TMDL wasteload allocation has been established and approved prior to the term of this general permit for (i) sediment or a sediment-related parameter (i.e., total suspended solids or turbidity) or(ii) nutrients(i.e., nitrogen or phosphorus) are not eligible for coverage under this general permit unless the operator develops, implements, and maintains a SWPPP that minimizes the pollutants of concern and, when applicable, is consistent with the assumptions and requirements of the approved TMDL wasteload allocations. In addition, the operator shall implement the following items: after final grade is reached on any portion of the site; c. Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and d. The applicable SWPPP inspection requirements specified in Part II F 2 shall be amended as follows: (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 exceptional waters. 6. There shall be no discharge of floating solids or visible foam in other than trace amounts. C. Commingled discharges. Discharges authorized by this general permit may be commingled with other sources of stormwater that are not required to be covered under a state permit, so long as the commingled discharge is in compliance with this general permit. Discharges authorized by a separate state or VPDES permit may be commingled with discharges authorized by this general permit so long as all such discharges comply with all applicable state and VPDES permit requirements. 7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or detergents have not been used; and where the wash water has been filtered, settled, or similarly treated prior to discharge; 8. Uncontaminated air conditioning or compressor condensate; 9. Uncontaminated ground water or spring water; 10. Foundation or footing drains where flows are not contaminated with process materials such as solvents; 11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have been filtered, settled, or similarly treated prior to discharge; and 12. Landscape irrigation. F. Termination of general permit coverage. 1. The operator of the construction activity shall submit a notice of termination in accordance with 9VAC25-880-60 to the VSMP authority after one or more of the following conditions have been met: potential to cause, or are contributing to an excursion above any applicable water quality standard, the department, in consultation with the VSMP authority, may take appropriate enforcement action and require the operator to: a. Modify or implement additional control measures in accordance with Part II B to adequately address the identified water quality concerns; b. Submit valid and verifiable data and information that are representative of ambient conditions and indicate that the receiving water is attaining water quality standards; or c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3. All written responses required under this chapter must include a signed certification consistent with Part III K. b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of stormwater from construction activities (i.e., notice of coverage letter); c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction activities; d. A narrative description of the nature of the construction activity, including the function of the Soto' project(e.g., low density residential, shopping mall, highway, etc.); e. A legible site plan identifying: (1) Directions of stormwater flow and approximate slopes anticipated after major grading activities; (2) Limits of land disturbance including steep slopes and natural buffers around surface waters that will not be disturbed; (3) Locations of major structural and nonstructural control measures, including sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or similarly treat sediment, that will be installed between disturbed areas and the undisturbed vegetated areas in order to increase sediment removal and maximize stormwater infiltration; (4) Locations of surface waters; Srr►' (2) Controls stormwater discharges, including peak flow rates and total stormwater volume, to minimize erosion at outlets and to minimize downstream channel and stream bank erosion; (3) Minimizes the amount of soil exposed during the construction activity; (4) Minimizes the disturbance of steep slopes; (5) Minimizes sediment discharges from the site in a manner that addresses (i) the amount, frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the site; (6) Provides and maintains natural buffers around surface waters, directs stormwater to vegetated areas to increase sediment removal, and maximizes stormwater infiltration, unless infeasible; (7) Minimizes soil compaction and, unless infeasible, preserves topsoil; (8) Ensures that stabilization of disturbed areas will be initiated immediately whenever any clearing, grading, excavating, or other land-disturbing activities have permanently ceased on any portion of the site, or temporarily ceased on any portion of the site and will not resume for a period exceeding 14 days; and a. Identify the potential pollutant-generating activities and the pollutant that is expected to be exposed to stormwater; b. Describe the location where the potential pollutant-generating activities will occur, or if identified on the site plan, reference the site plan; c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or ,,,r will be commingled with stormwater discharges from the construction activity, including any applicable support activity; d. Identify the person responsible for implementing the pollution prevention practice or practices for each pollutant-generating activity(if other than the person listed as the qualified personnel); e. Describe the pollution prevention practices and procedures that will be implemented to: (1) Prevent and respond to leaks, spills, and other releases including (i) procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii) procedures for reporting leaks, spills, and other releases in accordance with Part III G; (2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities (e.g., providing secondary containment such as spill berms, decks, spill containment pallets, providing cover where appropriate, and having spill kits readily available); f. Describe procedures for providing pollution prevention awareness of all applicable wastes, including any wash water, disposal practices, and applicable disposal locations of such wastes, to personnel in order to comply with the conditions of this general permit. The operator shall implement the procedures described in the SWPPP. 5. SWPPP requirements for discharges to impaired waters, surface waters with an applicable TMDL wasteload allocation established and approved prior to the term of this general permit, and exceptional waters. The SWPPP shall: a. Identify the impaired water(s), approved TMDL(s), pollutant(s) of concern, and exceptional waters identified in 9VAC25-260-30 A 3 c, when applicable; b. Provide clear direction that: (1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site; (2) Nutrients shall be applied in accordance with manufacturer's recommendations or an approved nutrient management plan and shall not be applied during rainfall events; and (3) A modified inspection schedule shall be implemented in accordance with Part I B 4 or Part I B 5. (1) Major grading activities occur; (2) Construction activities temporarily or permanently cease on a portion of the site; and (3) Stabilization measures are initiated; b. Documentation of replaced or modified controls where periodic inspections or other information have indicated that the controls have been used inappropriately or incorrectly and where modified as soon as possible; c. Areas that have reached final stabilization and where no further SWPPP or inspection requirements apply; d. All properties that are no longer under the legal control of the operator and the dates on which the operator no longer had legal control over each property; e. The date of any prohibited discharges, the discharge volume released, and what actions were taken to minimize the impact of the release; f. Measures taken to prevent the reoccurrence of any prohibited discharge; and g. Measures taken to address any evidence identified as a result of an inspection required under Part II F. rry 1. All control measures must be properly maintained in effective operating condition in accordance with good engineering practices and, where applicable, manufacturer specifications. If a site inspection required by Part II F identifies a control measure that is not operating effectively, corrective action(s) shall be completed as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority, to maintain the continued effectiveness of the control measures. 2. If site inspections required by Part II F identify an existing control measure that needs to be modified or if an additional control measure is necessary for any reason, implementation shall be completed prior to the next anticipated measurable storm event. If implementation prior to the next anticipated measurable storm event is impracticable, then alternative control measures shall be implemented as soon as practicable, but no later than seven days after discovery or a longer period as established by the VSMP authority. F. SWPPP Inspections. 1. Personnel responsible for on-site and off-site inspections. Inspections required by this general permit shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator is responsible for insuring that the qualified personnel conduct the inspection. 2. Inspection schedule. a. Inspections shall be conducted at a frequency of: 1411.✓ a. As part of the inspection, the qualified personnel shall: (1) Record the date and time of the inspection and when applicable the date and rainfall amount of the last measurable storm event; (2) Record the information and a description of any discharges occurring at the time of the inspection; (3) Record any land-disturbing activities that have occurred outside of the approved erosion and sediment control plan; (4) Inspect the following for installation in accordance with the approved erosion and sediment control plan, identification of any maintenance needs, and evaluation of effectiveness in minimizing sediment discharge, including whether the control has been inappropriately or incorrectly used: (a) All perimeter erosion and sediment controls, such as silt fence; (b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping measures; (c) Completed earthen structures, such as dams, dikes, ditches, and diversions for stabilization; that discharge to surface waters. Inlets and catch basins with failing sediments controls due to improper installation, lack of maintenance, or inadequate design are considered unprotected; (d) Sediment deposition on any property (including public and private streets) outside of the construction activity covered by this general permit; (e) Required stabilization has not been initiated or completed on portions of the site; (f) Sediment basins without adequate wet or dry storage volume or sediment basins that allow the discharge of stormwater from below the surface of the wet storage portion of the basin; (g) Sediment traps without adequate wet or dry storage or sediment traps that allow the discharge of stormwater from below the surface of the wet storage portion of the trap; and (h) Land disturbance outside of the approved area to be disturbed; (8) Inspect pollutant generating activities identified in the pollution prevention plan for the proper implementation, maintenance and effectiveness of the procedures and practices; (9) Identify any pollutant generating activities not identified in the pollution prevention plan; and as part of the SWPPP for at least three years from the date that general permit coverage expires or is terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection report does not identify any incidents of noncompliance, the report shall contain a certification that the construction activity is in compliance with the SWPPP and this general permit. The report shall be signed in accordance with Part III K of this general permit. G. Corrective actions. 1. The operator shall implement the corrective action(s) identified as a result of an inspection as soon as practicable but no later than seven days after discovery or a longer period as approved by the VSMP authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control measures shall be implemented to minimize pollutants in stormwater discharges until such approvals can be obtained. 2. The operator may be required to remove accumulated sediment deposits located outside of the construction activity covered by this general permit as soon as practicable in order to minimize environmental impacts. The operator shall notify the VSMP authority and the department as well as obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal of sediments accumulated in surface waters including wetlands. d. The individual(s)who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 2. The operator shall retain records of all monitoring information, including all calibration and rilkor,°` maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this general permit, and records of all data used to complete the registration statement for this general permit, for a period of at least three years from the date of the sample, measurement, report or request for coverage. This period of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated activity or regarding control standards applicable to the operator, or as requested by the board. C. Reporting monitoring results. 1. The operator shall update the SWPPP to include the results of the monitoring as may be performed in accordance with this general permit, unless another reporting schedule is specified elsewhere in this general permit. 2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided, approved or specified by the department; or in any format provided that the date, location, parameter, method, and result of the monitoring activity are included. 'kto•r' that may reasonably be expected to enter surface waters, shall notify the Department of Environmental Quality of the discharge immediately upon discovery of the discharge, but in no case later than within 24 hours after said discovery. A written report of the unauthorized discharge shall be submitted to the department and the VSMP authority within five days of discovery of the discharge. The written report shall contain: 1. A description of the nature and location of the discharge; 2. The cause of the discharge; 3. The date on which the discharge occurred; 4. The length of time that the discharge continued; 5. The volume of the discharge; 6. If the discharge is continuing, how long it is expected to continue; 7. If the discharge is continuing, what the expected total volume of the discharge will be; and 8. Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present discharge or any future discharges not authorized by this general permit. 2. A written report shall be submitted within five days and shall contain: a. A description of the noncompliance and its cause; b. The period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and 44110/ c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The department may waive the written report on a case-by-case basis for reports of noncompliance under Part Ill I if the oral report has been received within 24 hours and no adverse impact on surface waters has been reported. 3. The operator shall report all instances of noncompliance not reported under Part Ill 11 or 2 in writing as part of the SWPPP. The reports shall contain the information listed in Part Ill 12. NOTE: The reports required in Part Ill G, H and I shall be made to the department and the VSMP authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours, leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468- 8892. explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for state permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency. 2. Reports, etc. All reports required by this general permit, including SWPPPs, and other information requested by the board or the department shall be signed by a person described in Part III K 1 or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part Ill K 1; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the operator. (A duly authorized modified to incorporate the requirement. M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the expiration date of this general permit, the operator shall submit a new registration statement at least 90 days before the expiration date of the existing general permit, unless permission for a later date has been granted by the board. The board shall not grant permission for registration statements to be submitted later than the expiration date of the existing general permit. r° N. Effect of a state permit. This general permit does not convey any property rights in either real or personal property or any exclusive privileges, nor does it authorize any injury to private property or invasion of personal rights, or any infringement of federal, state or local law or regulations. O. State law. Nothing in this general permit shall be construed to preclude the institution of any legal action under, or relieve the operator from any responsibilities, liabilities, or penalties established pursuant to any other state law or regulation or under authority preserved by§ 510 of the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U) and "upset" (Part III V), nothing in this general permit shall be construed to relieve the operator from civil and criminal penalties for noncompliance. P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to preclude the institution of any legal action or relieve the operator from any responsibilities, liabilities, or penalties to which the operator is or may be subject under§§ 62.1-44.34:14 through 62.1-44.34:23 of the State Water Control Law or§ 311 of the Clean Water Act. Skirl k1rrie submit prior notice to the department, if possible at least 10 days before the date of the bypass. b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in Part Ill I. 3. Prohibition of bypass. „i a. Except as provided in Part Ill U 1, bypass is prohibited, and the board or department may take enforcement action against an operator for bypass unless: (1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage. Severe property damage means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production; (2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass that occurred during normal periods of equipment downtime or preventive maintenance; and (3) The operator submitted notices as required under Part Ill U 2. burden of proof. W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon presentation of credentials and other documents as may be required by law to: 1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this general permit; 2. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this general permit; 3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this general permit; and 4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management Act, any substances or parameters at any location. For purposes of this section, the time for inspection shall be deemed reasonable during regular business hours, and whenever the facility is discharging. Nothing contained herein shall make an inspection unreasonable during an emergency. application of such provision to other circumstances and the remainder of this general permit shall not be affected thereby. Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County stormwater) Temporary or permanent channels, flumes, or other slope drain structures ❑YES ❑NO ❑YES ❑NO ❑YES ❑NO (installed to convey concentrated runoff kiliso down cut and fill slopes) Storm inlets (to ensure that sediment laden stormwater ❑YES ❑NO ❑YES ❑NO ❑YES ❑NO does not enter without first being filtered or similarly treated) Construction entrances and access routes (for minimizing ❑YES ❑NO ❑YES ❑NO ❑YES ❑NO mud/sediment tracking) Have stabilization activities begun on areas that have reached final grade or that will remain YES NO dormant for more than 14 days? ❑ ❑ Were stabilization activities completed within seven days of reaching final grade or stopping ❑ YES ❑ NO work on areas that have reached final grade or that will remain dormant for more than 14 days? Issued— 10/2014 Stormwater Pollution Prevention Plan(SWPPP) Albemarle County 14,0,11 1 1.4,JUI IV II 1V IJ41 1V1 Nip,V ,,IAL„V, U,4„ ❑ YES ❑ NO through it), or the dewatering device appears to be dewatering basin from below the water surface Sediment traps that allow stormwater to discharge from below the surface of the wet ❑ YES ❑ NO storage portion of the trap Land disturbance outside of the approved limits of disturbance 111 YES El NO Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County *slaw' Vehicle Fueling or ❑ N/A ❑ YES ❑ NO ❑ YES ❑ NO Maintenance Other(describe) ❑ YES ❑ NO ❑ YES ❑ NO Other(describe) ❑ YES ❑ NO ❑ YES ❑ NO bikiskoi Other(describe) ❑ YES ❑ NO ❑ YES ❑ NO Other(describe) ❑ YES ❑ NO ❑ YES ❑ NO Other(describe) ❑ YES ❑ NO ❑ YES ❑ NO Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County �r► 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." Signature: Date: Name: Title: (must be either the Operator or Delegated Authority, not necessarily the person who conducted the inspection) Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County *ati✓ DATE: Oct. 2014 TOWNES SITE ENGINEERING SIT�s MAP DATE: July 2012 VICINITY MAP North Pointe Development Area: 268 Acres (approximate) Albemarle, Virginia Scale: N.T.S 34D Glenelg loam, 15 to 25 percent slopes 34E Glenelg loam, 25 to 45 percent slopes 39D Hazel loam, 15 to 25 percent slopes 39E Hazel loam, 25 to 45 percent slopes 56B Meadowville loam, 2 to 7 percent slopes 83 Toccoa fine sandy loam 88 Udorthents, loamy d -.27D c..3 27B � ..z � a :WW. • 0 k Electronic Copy: An electronic copy of this guidance document in PDF format is available for staff internally on DEQNET, and for the general public on DEQ's website at: http://www.deq.virginia.gov/Programs/Water/LawsRegulationsGuidance/Guidance/WaterPermitGuidanc e.aspx. Contact Information: Please contact Drew Hammond, Office of Stormwater Management, at(804)698-4037 or Andrew.Hammond(4deq.virginia.gov with any questions regarding the application of this guidance. Disclaimer: This document is provided as guidance and,as such,sets forth standard operating procedures for the agency. However,it does not mandate any particular method nor does it prohibit any particular method for the analysis of data,establishment of a wasteload allocation,or establishment of a permit limit. If alternative proposals are made,such proposals should be reviewed and accepted or denied based on their technical adequacy and compliance with appropriate laws and regulations. 1 JLV1111YYULLi1 111U11USLJ111Li11L 111VUJUAIVJ Mat WV Ill VLr 111JLU11LiLA 1J11V1 LV L11Li L_-11111/1L,L1V11 l/1 LiV11JL1UL#L1V11 L)V110141V compliance with the existing stormwater management technical criteria. DEQ may require additional confirmation that the aforementioned SWPPP requirements have been satisfied prior to issuing coverage under the 2009 general permit. For reissuance under the 2014 general permit erosion and sediment control plan approval is not required prior to submitting a registration statement for existing construction activities. However, it is the department's expectation that an erosion and sediment control plan will be submitted to the appropriate VESCP authority for review and approval no later than 60 days after the date of coverage under the 2014 general permit. For new construction activities(no previous general permit coverage)erosion and sediment control plan approval is required prior to submitting a registration statement for coverage under the 2014 general permit. 2 Virginia Stormwater Management Kegulatlons(irandtathermg Provisions(lb/12), prepared by the Department of Conservation and Recreation. Electronic Copy: An electronic copy of this guidance document in PDF format is available for staff internally on DEQNET, and for the general public on DEQ's website at: http://www.deq.virginia.gov/Programs/Water/Laws,Regulations,Guidance/Guidance/WaterPermitGuidan ce.aspx. Contact Information: Please contact Drew Hammond, Office of Stormwater Management,at(804)698-4037 or Andrew.Hammond(csdeq.virginia.gov with any questions regarding the application of this guidance. Disclaimer: This document is provided as guidance and,as such, sets forth standard operating procedures for the agency. However,it does not mandate or prohibit any particular action not otherwise required or prohibited by law or regulation. If alternative proposals are made, such proposals will be reviewed and accepted or denied based on their technical adequacy and compliance with appropriate laws and regulations. 1 "Virginia Stormwater Management Program(VSMP)authority"means an authority approved by the Board after September 13,2011 to operate a Virginia Stormwater Management Program or the Department. Regulatory Text: 9VAC25-870-47. Applicability of other laws and regulations;time limits on applicability of approved design criteria. A. Nothing in this chapter shall be construed as limiting the applicability of other laws and regulations, including,but not limited to,the CWA,Virginia Stormwater Management Act,Virginia Erosion and Sediment Control Law, and the Chesapeake Bay Preservation Act, except as provided in § 62.1-44.15:27 K of the Code of Virginia,and all applicable regulations adopted in accordance with those laws, or the rights of other federal agencies, state agencies,or local governments to impose more stringent technical criteria or other requirements as allowed by law. B. Land-disturbing activities that obtain an initial state permit or commence land disturbance prior to July 1, 2014, shall be conducted in accordance with the Part II C (9VAC25-870-93 et seq.)technical criteria of this chapter. Such projects shall remain subject to the Part II C technical criteria for two additional state permit cycles. After such time,portions of the project not under construction shall become subject to any new technical criteria adopted by the board. 2 . 11 JLULV 1J 1lllll 11U. 11il LJ %.11 1JJUVU F11V1 LV J Lai.y 1,LV 1T GL11G1 3. Land disturbance did not commence prior to July 1, 2014. C. Land disturbing activities grandfathered under subsections A and B of this section shall remain subject to the Part II C technical criteria of this chapter for one additional state permit cycle. After such time, portions of the project not under construction shall become subject to any new technical criteria adopted by the board. D. In cases where governmental bonding or public debt financing has been issued for a project prior to July 1, 2012, such project shall be subject to the technical criteria of Part II C. E. Nothing in this section shall preclude an operator from constructing to a more stringent standard at his discretion. Guidance: Existing Construction Activities All regulated land-disturbing activities, including all Chesapeake Bay Preservation Act(CBPA)land- disturbing activities,that obtained coverage under the 2009 General Permit for Discharges of Stormwater from Construction Activities(general permit)or commenced land disturbance prior to July 1, 2014 are subject to the old Part II C stormwater management technical criteria for two(2)additional general permit cycles. Except for CBPA land-disturbing activities not requiring 2014 general permit coverage,all 3 L. 111V Li1V1�111V11L1V11VU p1LL11,t/1CLL,Ul V1/41U1 V U1 V11L UVVU111V11L 1./1 V V IUVU CL lay JUL Lia UV'1l1VU III LI1V VSMP Regulation(i.e., a conceptual drawing sufficient to provide for the specified stormwater management facilities required at the time of approval)including basic pre-and post-construction water quality and water quantity calculations. The Department may require confirmation from the plan-approving locality to satisfy this regulatory requirement; 3. The aforementioned plan,plat, or equivalent document has not been subsequently modified or lkirre amended in a manner resulting in an increase in the amount of phosphorus leaving each point of discharge, or an increase in the volume or rate of runoff. The Department may require confirmation from the plan-approving locality to satisfy this regulatory requirement; 4. The construction activity will comply with the old Part II C technical criteria at the time of final design; 5. 2009 general permit coverage was not issued for the construction activity; and 6. Land disturbance did not commence prior to July 1,2014. 4