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CM-11-10-219CM -It -10 -2,17 RECEIVE[1 OCT20 2011 ROUND ROCK, TEXAS City Manager Approval Form PURPOSE. YASSION. tnoarrtanc Consider executing an Edwards Aquifer Recharge and Transition Zone Exception Request with the TCEQ for the University Boulevard Right Tum Lane Project. Item Caption: Approval Date: October 28, 2011 Department Name: Transportation Department Project Manager. John Dean, Transportation Planner Assigned Attorney: Steve Sheets Item Summary: As part of the Arterial Improvement Program - Bottleneck Projects, initially approved and funded by the City Council on June 23rd 2011, the Transportation Department is in the process designing a right tum lane on University Boulevard at Sunrise Road. This area is located within the Edwards Aquifer Recharge Zone, which requires coordination and approval from the Texas Commission on Environmental Quality (TCEQ). Attached is an Edwards Aquifer Recharge and Transition Exception Request, which has been prepared by our consultant on this project and reviewed and approved by our Stormwater Department. The City Manager's signature is required on this document as the owner's representative prior to submittal to the TCEQ. Subsequent approval from the TCEQ will allow us to move this project forward and complete the design of this right tum lane. No. of Originals Submitted: 1 Project Name: Cost: Source of Funds: University Boulevard at Sunrise Road right tum lane N/A Select Source Fund Source of Funds (if applicable): Select Source Fund Account Number. Finance Director Approval: Cheryl Delaney Date: 10/16/11 Department Director Approval: Gary Hudder Date: 10/24/11 **Electronic signature by the Director is acceptable. Please only submit ONE approval form per item. ** CIP I I n Budget a[] Purchasing ©❑ Accounting E LI N/A OK N/A OK N/A OK N/A OK ITEMS WILL NOT BE PLACED ON THE COUNCIL OR CM AGENDA W/OUT PRIOR FINANCE AND/OR LEGAL APPROVAL REV. 6/20/11 EDWARDS AQUIFER RECHARGE AND TRANSITION EXCEPTION REQUEST UNIVERSITY BOULEVARD RIGHT TURN LANE At4THONY J. A .....N.N...= 106300 / October 2011 Prepared For: Prepared By: r.--- InQC7EXAS ns IPIESPENTL City of Round Rock 221 E. Main Street Round Rock, Texas 78664 CP&Y, Inc. 10415 Morado Circle Building I, Suite 200 Austin, Texas 78759 (`i k& _L I In e7 101 Pek Partners for a Better Quality of Life Ben Milford TCEQ — Austin Regional Office 2800 S. IH 35, Suite 100 Austin, TX 78704-5700 RE: University Boulevard Right Turn Lane at Sunrise Rd — Water Quality Exception Request Dear Mr. Milford: Please find all necessary attachments required for the Recharge and Transition Zone Exception Request (Form TCEQ-0628) under 30 TAC §213 Subchapter A, specifically Rule § 213.9. With the included forms and attachments, we demonstrate equivalent water quality protection for the Edwards Aquifer. If you have any questions or need additional information, please do not hesitate to contact our office at (512) 349-0700. Sincerely, Anthony Serda, P.E. cc: Paul Schrader, P.E. Chad Wood, P.E. John Dean Ryan Beardmore Patrick Benedict, P.E. Applicant: City of Round Rock Steve Norwood, City Manager 221 E. Main Street Round Rock, TX 78664 512-218-5410 Agent/Engineer: CP&Y, Inc. Anthony Serda, P.E. 10415 Morado Circle, Bldg. 1, Ste. 200 Austin, TX 78759 512-349-0700 The Avallciniadaig I 10415 Morado Crc#e, St0 Texas, 512.349.0700.5129.0727 fax: www.cp cont Recharge and Transition Zone Exception Request Form Checklist X General Information Form (TCEQ-0587) ATTACHMENT A - Road Map ATTACHMENT B - USGS / Edwards Recharge Zone Map ATTACHMENT C - Project Description N/A Geologic Assessment Form (TCEQ-0585), if necessary ATTACHMENT A - Geologic Assessment Table (TCEQ-0585-Table) Comments to the Geologic Assessment Table ATTACHMENT B - Soil Profile and Narrative of Soil Units ATTACHMENT C - Stratigraphic Column ATTACHMENT D - Narrative of Site Specific Geology Site Geologic Map(s) Table or list for the position of features' latitude/longitude (if mapped using GPS) X Recharge and Transition Zone Exception Request Form (TCEQ-0628) ATTACHMENT A - Nature of Exception ATTACHMENT B - Documentation of Equivalent Water Quality Protection X Temporary Stormwater Section (TCEQ-0602), if necessary ATTACHMENT A - Spill Response Actions ATTACHMENT B - Potential Sources of Contamination ATTACHMENT C - Sequence of Major Activities ATTACHMENT D - Temporary Best Management Practices and Measures ATTACHMENT E - Request to Temporarily Seal a Feature (if sealing a feature) ATTACHMENT F - Structural Practices ATTACHMENT G - Drainage Area Map ATTACHMENT H - Temporary Sediment Pond(s) Plans and Calculations ATTACHMENT I - Inspection and Maintenance for BMPs ATTACHMENT J - Schedule of Interim and Permanent Soil Stabilization Practices X Permanent Stormwater Section (TCEQ-0600), if necessary ATTACHMENT A - 20% or Less Impervious Cover Waiver, if project is multi -family residential, a school, or a small business and 20% or less impervious cover is proposed for the site ATTACHMENT B - BMPs for Upgradient Stormwater ATTACHMENT C - BMPs for On-site Stormwater ATTACHMENT D - BMPs for Surface Streams ATTACHMENT E - Request to Seal Features, if sealing a feature ATTACHMENT F - Construction Plans ATTACHMENT G - Inspection, Maintenance, Repair and Retrofit Plan ATTACHMENT H -Pilot-Scale Field Testing Plan, if BMPs not based on Complying with the Edwards Aquifer Rules: Technical Guidance for BMPs ATTACHMENT 1 -Measures for Minimizing Surface Stream Contamination X Agent Authorization Form (TCEQ-0599), if application submitted by agent X Application Fee Form (TCEQ-0574) X Check Payable to the "Texas Commission on Environmental Quality" X Core Data Form (TCEQ-10400) TCEQ-0588 (Rev. 03/02/09) Page 1 of 1 General Information Form For Regulated Activities on the Edwards Aquifer Recharge and Transition Zones and Relating to 30 TAC §213.4(b) & §213.5(b)(2)(A), (B) Effective June 1, 1999 REGULATED ENTITY NAME: University Boulevard Eastbound Right Tum Lane at Sunrise Road COUNTY: Williamson STREAM BASIN: Chandler Branch of Brushy Creek EDWARDS AQUIFER: X RECHARGE ZONE _ TRANSITION ZONE PLAN TYPE: _ WPAP _ AST X EXCEPTION _ SCS _ UST MODIFICATION CUSTOMER INFORMATION 1. Customer (Applicant): Contact Person: Entity: Mailing Address: City, State: Telephone: Steve Norwood City of Round Rock 221 E. Main Street Round Rock, Tx 512-218-5410 Agent/Representative (If any): Zip: 78664 FAX: 512-218-7097 Contact Person: Anthony Serda, P.E. Entity: CP&Y, Inc. Mailing Address: 10415 Morado Circle, Building I, Suite 200 City, State: Austin, Tx Zip: 78759 Telephone: 512-349-0700 FAX: 512-349-0727 2. X This project is inside the city limits of Round Rock This project is outside the city limits but inside the ETJ (extra -territorial jurisdiction) of This project is not located within any city's limits or ETJ. 3. The location of the project site is described below. The description provides sufficient detail and clarity so that the TCEQ's Regional staff can easily locate the project and site boundaries for a field investigation. On University Boulevard, west of Sunrise Road and east of Cypress Boulevard on the eastbound lanes 4. X ATTACHMENT A - ROAD MAP. A road map showing directions to and the location of the project site is attached at the end of this form. 5. X ATTACHMENT B - USGS / EDWARDS RECHARGE ZONE MAP. A copy of the official 7'/ minute USGS Quadrangle Map (Scale: 1" = 2000') of the Edwards Recharge Zone TCEQ-0587 (Rev. 10-01-10) Page 1 of 3 is attached behind this sheet. The map(s) should clearly show: X Project site. X USGS Quadrangle Name(s). X Boundaries of the Recharge Zone (and Transition Zone, if applicable). X Drainage path from the project to the boundary of the Recharge Zone. 6. X Sufficient survey staking is provided on the project to allow TCEQ regional staff to locate the boundaries and alignment of the regulated activities and the geologic or manmade features noted in the Geologic Assessment. The TCEQ must be able to inspect the project site or the application will be returned. 7. X ATTACHMENT C - PROJECT DESCRIPTION. Attached at the end of this form is a detailed narrative description of the proposed project. 8. Existing project site conditions are noted below: Existing commercial site Existing industrial site _ Existing residential site X Existing paved and/or unpaved roads Undeveloped (Cleared) Undeveloped (Undisturbed/Uncleared) Other: PROHIBITED ACTIVITIES 9. X I am aware that the following activities are prohibited on the Recharge Zone and are not proposed for this project: (1) waste disposal wells regulated under 30 TAC Chapter 331 of this title (relating to Underground Injection Control); (2) new feedlot/concentrated animal feeding operations, as defined in 30 TAC §213.3; (3) land disposal of Class I wastes, as defined in 30 TAC §335.1; (4) the use of sewage holding tanks as parts of organized collection systems; and (5) new municipal solid waste landfill facilities required to meet and comply with Type I standards which are defined in §330.41(b), (c), and (d) of this title (relating to Types of Municipal Solid Waste Facilities). 10. X I am aware that the following activities are prohibited on the Transition Zone and are not proposed for this project: (1) (2) (3) waste disposal wells regulated under 30 TAC Chapter 331 (relating to Underground Injection Control); land disposal of Class I wastes, as defined in 30 TAC §335.1; and new municipal solid waste landfill facilities required to meet and comply with Type I standards which are defined in §330.41 (b), (c), and (d) of this title. ADMINISTRATIVE INFORMATION 11. The fee for the plan(s) is based on: For a Water Pollution Abatement Plan and Modifications, the total acreage of the site TCEQ-0587 (Rev. 10-01-10) Page 2 of 3 where regulated activities will occur. For an Organized Sewage Collection System Plans and Modifications, the total linear footage of all collection system lines. For a UST Facility Plan or an AST Facility Plan, the total number of tanks or piping systems. X A request for an exception to any substantive portion of the regulations related to the protection of water quality. A request for an extension to a previously approved plan. 12. Application fees are due and payable at the time the application is filed. If the correct fee is not submitted, the TCEQ is not required to consider the application until the correct fee is submitted. Both the fee and the Edwards Aquifer Fee Form have been sent to the Commission's: _ TCEQ cashier X Austin Regional Office (for projects in Hays, Travis, and Williamson Counties) San Antonio Regional Office (for projects in Bexar, Comal, Kinney, Medina, and Uvalde Counties) 13. X Submit one (1) original and one (1) copy of the application, plus additional copies as needed for each affected incorporated city, groundwater conservation district, and county in which the project will be located. The TCEQ will distribute the additional copies to these jurisdictions. The copies must be submitted to the appropriate regional office. 14. X No person shall commence any regulated activity until the Edwards Aquifer Protection Plan(s) for the activity has been filed with and approved by the Executive Director. To the best of my knowledge, the responses to this form accurately reflect all information requested concerning the proposed regulated activities and methods to protect the Edwards Aquifer. This GENERAL INFORMATION FORM is hereby submitted for TCEQ review. The application was prepared by: Anthony Serda, P.E. (Agent) Print Name of Customer/Agent Signatur r/Agent t-12./ r7/2.44 t Date If you have questions on how to fill out this form or about the Edwards Aquifer protection program, please contact us at 210/490- 3096 for projects located in the San Antonio Region or 512/339-2929 for projects located In the Austin Region. Individuals are entitled to request and review their personal information that the agency gathers on its forms. They may also have any errors in their information corrected. To review such information, contact us at 512/239-3282. TCEQ-0587 (Rev. 10-01-10) Page 3 of 3 _.a MI WM 4. q...n .11 4 P7,41)1 0 r.Cl" APillirCja 0 6 500 1,000 H I—I Feet ATTACHMENT A University Boulevard From Cypress Blvd to Sunrise Rd N Project Location wares ,c�rEior ►�rs�ar�Ant rsransrt on cone =M-.. ... ----MMONOIRM - AbAPLIN ir t ti�t viva PM* (111 3 5 cig e o ,'4�i14 b 0 1,000 2,000 Feet ATTACHMENT B University Boulevard From Cypress Blvd to Sunrise Rd A/Project Location NMI TCEQ Edwards Aquifer Boundary USGS Quad: Round Rock ;,41:Vlea p&yj Partners for a Better Quality of Life Form TCEQ-0587 Attachment C The existing University Boulevard consists of a 5 -lane urban curb and gutter roadway section (two thru lanes in each direction with a center two-way left turn lane) within the limits of the project. The total existing roadway width measured from the lips of gutter is 57 -ft. The City of Round Rock is proposing improvements to a portion of this roadway at Sunrise Road which include the addition of an 11 -ft right turn lane to the eastbound lanes consisting of Hot Mix Asphalt Pavement (HMA) for approximately 345 -ft west of Sunrise Rd. Within the limits of the proposed right turn lane there are no storm sewer inlets, however, this additional pavement along with the existing drainage area flows to the west towards Chandler Branch where there are existing storm sewer inlets that will capture the rainfall runoff. This water is ultimately discharged into Chandler Branch. There will be no additional inlets or storm sewer modifications as a result of this project. The additional pavement resulting from this project will be treated for water quality via a grassy swale, along with some of the existing drainage area. There are two separate contributing drainage areas to the water quality swale (WQ 10 and WQ15, as shown on the drainage area map) that will yield sufficient levels of TSS removal for the University Boulevard project. To divert rainfall runoff from the existing and proposed roadway, curb cuts will be installed into the existing curb and gutter section downstream and to the west of our proposed improvements. These curb cuts are not designed to capture the entire runoff of the roadway, only a small portion to satisfy the TGM requirements. The water captured from the curb cuts will be diverted into the proposed grassy swale to achieve TSS removal, and then re-enter the roadway curb and gutter section just upstream of an existing inlet at STA 96+80. The runoff from University Blvd not passing through the curb cuts will continue downstream to this same existing inlet, rejoin the treated "clean" water, and discharge into Chandler Branch through the existing storm sewer. The total project area, including the limits of the drainage area to the proposed water quality swale is 4.34 acres with 1.57 acres, or 36.2 -percent being impervious. The Avnlion. Building 1 10415 Morula tircle, 8u0e 200 Austin, Texas 78759 512.349.0100 • 512.349.0727 fax wwwcpyi com Recharge And Transition Zone Exception Request Form 30 TAC §213.9 Effective June 1, 1999 Regulated Entity Name: University Boulevard Eastbound Right Tum Lane at Sunrise Road 1. X ATTACHMENT A - Nature of Exception. A narrative description of the nature of each exception requested is provided as ATTACHMENT A at the end of this form. All provisions of 30 TAC §213 Subchapter A for which an exception is being requested have been identified in the description. 2. X ATTACHMENT B - Documentation of Equivalent Water Quality Protection. Documentation demonstrating equivalent water quality protection for the Edwards Aquifer is provided as ATTACHMENT B at the end of this form. ADMINISTRATIVE INFORMATION 3. X Submit one (1) original and one (1) copy of the application, plus additional copies as needed for each affected incorporated city, groundwater conservation district, and county in which the project will be located. The TCEQ will distribute the additional copies to these jurisdictions. The copies must be submitted to the appropriate regional office. 4. X The applicant understands that no exception will be granted for a prohibited activity in Chapter 213. 5. X The applicant understands that prior approval under this section must be obtained from the executive director for the exception to be authorized. To the best of my knowledge, the responses to this form accurately reflect all information requested conceming the proposed regulated activities and methods to protect the Edwards Aquifer. This RECHARGE AND TRANSITION ZONE EXCEPTION REQUEST FORM application is hereby submitted for TCEQ review and executive director approval. The request was prepared by: Anthony Serda, P.E. (Agent) Print Name of Customer/Agent Signature of Customer/Agent Date TCEQ-0628 (Rev. 10-01-10) p&yj Partners for a Better Quality of Life Form TCEQ-0628 Attachment A §213.9(b)(1) Applicant: City of Round Rock Steve Norwood, City Manager 221 E. Main Street Round Rock, TX 78664 512-218-5410 Agent/Engineer: CP&Y, Inc. Anthony Serda, P.E. 10415 Morado Circle, Bldg. 1, Ste. 200 Austin, TX 78759 512-349-0700 §213.9(b)(2) University Boulevard Right Turn Lane at Sunrise Road in Round Rock Texas. Latitude: 30° 33' 41.46" Longitude: -97° 40' 50.98" §213.9(b)(3) This project adds a negligible amount of impervious cover to an existing roadway within Round Rock, Tx. No unusual design or construction methods will be associated with the project. §213.9(b)(4) The existing University Boulevard consists of a 5 -lane urban curb and gutter roadway section (2 thru lanes in each direction with a center two-way left turn lane.) The City of Round Rock is proposing improvements to a portion of this roadway at Sunrise Rd which include the addition of an 11 -ft right turn lane to the eastbound lanes consisting of Hot Mix Asphalt Pavement (HMA) for approximately 345 -ft west of Sunrise Rd. Due to the negligible increase in impervious cover resulting from this project (0.0782 acres), only 68 -lbs of Total Suspended Solids (TSS) are required to be removed under the Edwards Aquifer Technical Guidance Manual's (TGM) methodology and as calculated in the TCEQ calculation spreadsheet (dated 04-20-09). The total project area, including the limits of the drainage area to the proposed water quality swale is 4.34 acres with 1.57 acres, or 36.2 -percent being impervious. As shown in Attachment B of this section and supporting sheets, we exceed this removal requirement of 68 -lbs and remove a total of 341 -lbs of TSS by using a grassy swale BMP. All TGM requirements for grassy swales have been met. To divert rainfall runoff from the existing and proposed roadway, curb cuts will be installed into the existing curb and gutter section downstream and to the west of our proposed improvements. These curb cuts are not designed to capture the entire runoff of the roadway, only a small portion to satisfy the TGM requirements. The water captured from the curb cuts will be diverted into the proposed grassy swale to achieve TSS removal, and then re-enter the roadway curb and gutter section just upstream of an existing inlet at STA 96+80. The runoff from University Blvd not passing through the curb cuts will continue downstream to this same existing inlet, rejoin the treated "clean" water, and discharge into Chandler Branch through the existing storm sewer. §213.9(b)(5) See supporting attachments. The Avation, uilin 10415 Morado'0003..1d Suite 200 Austin. 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C N r 7 c d �� 07 c c • u V H W d y 'O r N d '§ o Ico H U � 9 d2� `v G r w O d 0 d ed 3 0 o ' do CL (1. w 13 c 8E.0 c c 0 0 = c q 0 ww,, W O . 0 0 0 40 •C Ntt QI-00 Texas Commission on Environmental Quality TSS Removal Calculations 04-20-2009 hese fields will remove the equations used in the spreadsheet. Pages 3-27 to 3-30 -o �o 0 -0 0) N 10 w 0 O 0 E o. 0 Tut) v d 0 o t L 0 o. o o. wE k ww 0) 01 c o .1-) '0 Z o c3 aEiE 0. • co c c X v m m E 0) 10 C U N To 8. C' N L� U N Z Q w 0 0 7 Required Load Re N 0i as as Lm C II 11 11 t II I1 II 1I 1I II O. o .L• 4. 4. ._ 4.n. w 'o c c c c 3 a o `—°ao.° 0. e V c t ra. l W CH 0 0 > d J c !ii 3 N C L 0. E 0° o ; — To E o 0. co t0 0 a. re H > ; TD o o •E20 S. .li EEo V c o 0 E E 0 c m > > a).8 0) 0 a .9 o o. N 0) r0 0 o 3 ~ r 0, 11 3 a J The values entered in these fields should be for the total project area. Number of drainage basins / outfalls areas leaving the plan area = E 15 a 0) Drainage Basin/Outfall Area No. = I) 11 11 as as al as as as as as 0 0 c c c .0 co 0)0)0) ccc V 666 co to E m `01 fa 41) 00 0 n. 0. 0 0 E E 0 0 >> v� as N m co I -- oz a W w2 IE -< 2 m N 11 u ca z E V co co z J- o O J c 4-6 (13 .0 m 0) m c v p 3 0 2 N 0 O m a E c m E 1111 0. O a1) O a 2 a BMP Code f 2 W u c c a N 0 II u CL ?!% mac) 0 CO 0. O • c • O 4E) Y itN 13 a m d C C C "1• .-- CO c0) _.mo c 0- a) c co• iii m IR m m 0 c o 0 m ,- ii .2 CO )13(00 c a: am m -= CO 0 o 0 0 2 c> �tL 0 C) I m> O c c a) m C O) t N 4- a- 2 0 0'V .. 0) a) .2 m o < 0Ow0recncn»33 a 03 -o N O c0 O Cf co 0 co y c N m c m E m c {gyp ▪ U Cal 0 -5-.ea' m • 2 ▪ a E • m CO C r m O N m C w CCa 0 4) 0 C 0 O) 0. C 2 O '0 .0 Q. E m v4)) • . o . 1(° 2 2 N C O 7 0 - EE ,u2 11 n n 11 •' a ct-T Calculate Ma WQ15 Additional Area 10 0 0 0 co0 CO CO ui CO CO CO .ma V. CD m 3 II II 11 11 10 II it y Q J Z LL Q 2 - J 0 tthe draina on of Annual Runoff to T u LL Pages 3-34 to 3-36 Calculations from RG -348 Pages 3-36 to 3-37 W c ODP 0 00 0 3� O O O O O •S 0 E Z C Z Z CZ W 0) 0) 0) U E o o E 0 u o u 11 11 11 II 1I u u 2 a n u n ay E 22 E ac) • E aa)) 44 N a� y 82 7 mm (a -a 7 E Tp .0 c —> wrlEj v x w cc c m rn�w a) o — o 0 V c cICU m Q • c A 41 c CO CO .E c ott o ° `ma w 41 0 w rt 0O �� ° 2U7' ��,Z m €E 0 7� cix 7� eo 0 s S. 0 Q: w Of N o rU+ > O C w a) O) > a1 !0 1a a) Z '0 c a)� m $� y3 CO ETo S _ E o c O 0 0 7 C O !C Q. Cr �) Z. a) > O 8 N G O Az V C a) 01. E E a° To d oE 13 to d Nr 2 > v 9 8 3E To � « 0 E t-7) a 0 W N a`) E o«° E g v o a o 43 >Eca m is s 2�am a -o a C0. 0~ c r 0 81&76 'E IY 13pm.E a o)o0 c I I w c c srW F- I- r co Pages 3-42 to 3-46 0 0 d E N toto 0 co o. Pages 3-46 to 3-51 Pages 3-58 to 3-63 Is a) c_ 4)) a) .o co et A c co cow V ) m c a) ,a2 c a) c m w w w hw v w co 0 U U a N U a 0 4 U No g � U o CO O' 07 0 Q 3 a W ce ce a) $ 0 m m i9 a for Sand Filters ntation and LL a Water Quality Volume for sedimentation basin = N m to O z 0w w2 0 _ I- O E 16 I- LL Q N CO N O p O C O .0 13 v 13 v m .m, m « 13 13 E E E E EE EE LL IL IIL Y. w w w d w w w w d Of CO CO 0 CO CO CO 7 70 Q Q 0 b CO (0 z zz Minimum filter basin area = 11 11 co to m 0 N c c a.0 00 2E EE to N E E 'X 2 2 E a c 0 C m m ie a z z zz Water Quality Volume for combined basins = Minimum filter basin area = 11 11 to to Em to co 0 0 CO CO .0.0 0 0 SE EE h a E E 'X 2 2 Pages 3-63 to 3-65 Designed as Required in RG -348 10. Bioretention System Pages 3-66 to 3-71 co 3 ch cc 15 00 c . w 0 0 0 0 Ucro re dl co AC z cz z c ' a co 0. =a c m E to o m Na m a5 A' m -12 to 13 o. co V 7 P.0 0 0 -43c w a c0 a a w w m o a1— a Required Water Quality Volume for Bioretention Basin = 11. Wet Basins 11 11 C 0 C. c m cw as _ 0 m IS co a0. U8 -0 A-0 Pages 3-71 to 3-73 Designed as Required in RG -348 12. Constructed Wetlands ami 0 .0 z Required Water Quality Volume for Constructed Wetlands = Pages 3-74 to 3-78 Designed as Required in RG -348 E N m • O 0 W c 0 0 c m c w m m c r)m a ,T, 432 .o d U E 7 Z Z Z 0 0 N u u u 0 i_ami2 5 m m a Ems= E '0 Nm m 5 Q m 0 ,. _ .. _ °c « a. LL 0.a m E c 0 o 10 N3 0 CO A- 03 a. 7 N m CO I- O z a W w2 V I I- 1.5 O L. a V 2 UPQN FLOW RATES - NOT CALCULATED WATER QUALITY VOLUMES Pages 3-51 to 3-54 Required Water Quality Volume for Contech StormFilter System = THE SIZING REQUIREMENTS FOR THE FOLLOWING BMPs / LOAD REMOVAL 10 A th c CD 7 Cb b E a. N N co 0 C H 2 w Crco M - co10 r• -•N '4:It) C) v. a N6" cor 0 C O C N a) coO -13 O N c 15. Grassy Swales 0 en N t w In (0 N 4 O C 11 11 11 11 11 11 11 11 II 11 11 Q co _ d N >. V ." 3 c co • N 0 0 O. C C td N W c a) 0 C O II pN C c 3 O D E C f� N • IC' N N $ O ?en N C > i 0) `• y Q' c o m II y 7 av o13 ca��, H N N O_ O C a) C c t = c O > y O W 16 O. 9 h 7 Q - b E 11 c N 11 O cm ea 4P 3E L 5 0 .0V 0 ' O O 6 5 Q W Mannings Equation: c II u 11 N u a C7To11 N N C u. O 0 41 O `0 Z 6 m 6 400 O To calculate the resulting swale length: c co CO II— z ■ w w � I- 0 E a � �03- L = Minimum Swale Length = V (ft/sec) * 300 (sec) _ If any of the resulting values do not meet the design requirement set fojth in RG -348, the design parameters must be modified and the solver rerun. 15B. Alternative Method using Excel Solver k 2• .0 k 8 0) § 2 E d d &2 c ' 1 § 11 \ 11 l ` ® �2 w w 0 § E� § a o. cs &� 13 q t g i= « ■ ■ 0 (0 13 N. §. �ddoo I4 o2 g c ce $11 11 11 I Z © E B 77 / �E -0 2) a� ■ - > = e . 2 I @ _B / G 2)� 2) g® E # § : \@ § �f § �� E{ ES ° ) § 0 ■ mc e ■ 2 2 Atin �to m & ■ § E c c_ -a 5To To5 c c kk 55 0 0 IA CO ■■ Instructions are provided to Instructions are provided to Pages 3-55 to 3-57 Desigbed as Required in RG -348 If vegetative filter strips are proposed for an interim permanent BMP, they may b4 sized as described on Page 3-56 of RG -348 Pages 3-30 to 3-32 & 3-79 Designed as Required in RG -348 .0 z Required Load Removal Based upon Equation 3.3 = co CO I -- O z a W w2 0 _ 0 145 O C = Runoff Coefficient = 0.546 (IC)2 + 0.328 (IC) + 0.03 cubic feet/sec M G 0.00 feet/sec First calculate the Toad removal at 1.1 in/hour RG -348 Page 3-30 Equation 3.4: Q = CiA Q = flow rate in cubic feet per second = RG -348 Page 3-31 Equation 3.5: VOR = Q/A 11 11 11 > 2i CO0 CO W s 2 m 3 m m d c 0 11 E >6 ft o ea ct r 11 'M- O O 3 11 Percent TSS Removal from Figure 3-1 (RG -348 Page 3-31) = N .0 Load removed by Wet Vault = tl 11 N 4. M c O w 2 E y a c E p a oo w Z _ • - C:J ix W o r 7.▪ 1 - N t C N ¢ C . 3 E L 0 rn c W lL O Eli O CO W O` q c• w c c o — — — - 0 c c W •E c 1 o . OS 0 c o m ¢ u m o m W W w:: O v W ft 0 Resultant TSS Load removed by Wet Vault = Pages 3-79 to 3-83 ed as Required in RG -348 18. Permeable Concrete PERMEABLE CONCRETE MAY ONLY BE USED ON THE CONTRIBUTING ZONE . BMPs Installed in a Series NET EFFICIENCY OF THE BMPs IN THE SERIES 86.38 percent 0 0 X O X 0 X w 11 w co O O z a W W 0 _ H 0 0 LL, a 75.00 percent 70.00 percent 0. O O 0 W w w w W 1-- Z m 00 Z 0LT 0 w 0 w U Z ~ W 0 } u_ W U w w THE SERIES = E2 = EFFICIENCY OF THE THIRD BMP IN THE SERIES = E3 = O o) g j0 X co M g X < 0 0 X Lu o- w co X X <� w O tL UJ J Z < W L7 W J a Oa W < N in 02 .0 N W .2Q ly] <000 Q¢ Q> »> > > > <oo a< Z o o z Z o Z<<< < < < Z o o Z 111;11 gv c e o 0 a a m� o C13, °o U m To 35 o Z E Eu) _cn CO I CC TSS Load Credit = Is Sufficient Treatment Available? (TSS Credit > TSS Uncapt.) TSS Treatment by BMP (LM + TSS Uncapt.) = 11,11 11 11 a 00 ami co H <L <N o m v r m Oo a 020 'e.c w a. > > N m o `° m c0r" m ° > Wco To' E co( Eu) co I-- F- e 0, H CI. 2 m N m CO I— O z a W W 0 _ I- V L °a Pick Model Size >>e .0 .• 0 o W W W W W W W C o >DMD • ZZZ Actual Model Size (if choosing larger model size) _ Rounded Overflow Rate = TSS Load Credit = a ^ 5. c • c II -co AlI I- + 413 2 • a co 2 m c•-• .0 N w, d C W N .C73 g Q EC l— a) c^^ VJ as I— Temporary Stormwater Section for Regulated Activities on the Edwards Aquifer Recharge Zone and Relating to 30 TAC §213.5(b)(4)(A), (B), (D)(I) and (G); Effective June 1, 1999 REGULATED ENTITY NAME: University Boulevard Eastbound Right Turn Lane at Sunrise Road POTENTIAL SOURCES OF CONTAMINATION Examples: Fuel storage and use, chemical storage and use, use of asphaltic products, construction vehicles tracking onto public roads, and existing solid waste. 1. Fuels for construction equipment and hazardous substances which will be used during construction: Aboveground storage tanks with a cumulative storage capacity of less that 250 gallons will be stored on the site for less than one (1) year. Aboveground storage tanks with a cumulative storage capacity between 250 gallons and 499 gallons will be stored on the site for less than one (1) year. Aboveground storage tanks with a cumulative storage capacity of 500 gallons or more will be stored on the site. An Aboveground Storage Tank Facility Plan application must be submitted to the appropriate regional office of the TCEQ prior to moving the tanks onto the project. X Fuels and hazardous substances will not be stored on-site. 2. X ATTACHMENT A - Spill Response Actions. A description of the measures to be taken to contain any spill of hydrocarbons or hazardous substances is provided at the end of this form. 3. N/A Temporary aboveground storage tank systems of 250 gallons or more cumulative storage capacity must be located a minimum horizontal distance of 150 feet from any domestic, industrial, irrigation, or public water supply well, or other sensitive feature. 4. ATTACHMENT B - Potential Sources of Contamination. Describe in an attachment at the end of this form any other activities or processes which may be a potential source of contamination. There are no other potential sources of contamination. SEQUENCE OF CONSTRUCTION 5. X ATTACHMENT C - Sequence of Major Activities. A description of the sequence of major activities which will disturb soils for major portions of the site (grubbing, excavation, grading, utilities, and infrastructure installation) is provided at the end of this form. For each activity described, an estimate of the total area of the site to be disturbed by each activity is given. 6. X Name the receiving water(s) at or near the site which will be disturbed or which will receive discharges from disturbed areas of the project: Chandler Branch of Brushy Creek TCEQ-0602 (Rev. 10/01/04) Page 1 of 4 TEMPORARY BEST MANAGEMENT PRACTICES (TBMPs) Erosion control examples: tree protection, interceptor swales, level spreaders, outlet stabilization, blankets or matting, mulch, and sod. Sediment control examples: stabilized construction exit, silt fence, filter dikes, rock berms, buffer strips, sediment traps, and sediment basins. Please refer to the Technical Guidance Manual for guidelines and specifications. All structural BMPs must be shown on the site plan. 7. X ATTACHMENT D - Temporary Best Management Practices and Measures. A description of the TBMPs and measures that will be used during and after construction are provided at the end of this form. For each activity listed in the sequence of construction, include appropriate control measures and the general timing (or sequence) during the construction process that the measures will be implemented. X TBMPs and measures will prevent pollution of surface water, groundwater, and stormwater. The construction -phase BMPs for erosion and sediment controls have been designed to retain sediment on site to the extent practicable. The following information has been provided in the attachment at the end of this form a. A description of how BMPs and measures will prevent pollution of surface water, groundwater or stormwater that originates upgradient from the site and flows across the site. b. A description of how BMPs and measures will prevent pollution of surface water or groundwater that originates on-site or flows off site, including pollution caused by contaminated stormwater runoff from the site. c. A description of how BMPs and measures will prevent pollutants from entering surface streams, sensitive features, or the aquifer. d. A description of how, to the maximum extent practicable, BMPs and measures will maintain flow to naturally -occurring sensitive features identified in either the geologic assessment, TCEQ inspections, or during excavation, blasting, or construction. 8. The temporary sealing of a naturally -occurring sensitive feature which accepts recharge to the Edwards Aquifer as a temporary pollution abatement measure during active construction should be avoided. ATTACHMENT E - Request to Temporarily Seal a Feature. A request to temporarily seal a feature is provided at the end of this form. The request includes justification as to why no reasonable and practicable altemative exists for each feature. X There will be no temporary sealing of naturally -occurring sensitive features on the site. 9. X ATTACHMENT F - Structural Practices. Describe the structural practices that will be used to divert flows away from exposed soils, to store flows, or to otherwise limit runoff discharge of pollutants from exposed areas of the site. Placement of structural practices in floodplains has been avoided. 10. X ATTACHMENT G - Drainage Area Map. A drainage area map is provided at the end of this form to support the following requirements. For areas that will have more than 10 acres within a common drainage area disturbed at one time, a sediment basin will be provided. For areas that will have more than 10 acres within a common drainage area disturbed at one time, a smaller sediment basin and/or sediment trap(s) will be TCEQ-0602 (Rev. 10/01/04) Page 2 of 4 used. For areas that will have more than 10 acres within a common drainage area disturbed at one time, a sediment basin or other equivalent controls are not attainable, but other TBMPs and measures will be used in combination to protect down slope and side slope boundaries of the construction area. X There are no areas greater than 10 acres within a common drainage area that will be disturbed at one time. A smaller sediment basin and/or sediment trap(s) will be used in combination with other erosion and sediment controls within each disturbed drainage area. 11. N/A ATTACHMENT H - Temporary Sediment Pond(s) Plans and Calculations. Temporary sediment pond or basin construction plans and design calculations for a proposed temporary BMP or measure has been prepared by or under the direct supervision of a Texas Licensed Professional Engineer. All construction plans and design information must be signed, sealed, and dated by the Texas Licensed Professional Engineer. Construction plans for the proposed temporary BMPs and measures are provided as at the end of this form. 12. X ATTACHMENT I - Inspection and Maintenance for BMPs. A plan for the inspection of temporary BMPs and measures and for their timely maintenance, repairs, and, if necessary, retrofit is provided at the end of this form. A description of documentation procedures and recordkeeping practices is included in the plan. 13. X All control measures must be properly selected, installed, and maintained in accordance with the manufacturer's specifications and good engineering practices. If periodic inspections by the applicant or the executive director, or other information indicate a control has been used inappropriately, or incorrectly, the applicant must replace or modify the control for site situations. 14. X If sediment escapes the construction site, off-site accumulations of sediment must be removed at a frequency sufficient to minimize offsite impacts to water quality (e.g., fugitive sediment in street being washed into surface streams or sensitive features by the next rain). 15. X Sediment must be removed from sediment traps or sedimentation ponds not later than when design capacity has been reduced by 50%. A permanent stake will be provided that can indicate when the sediment occupies 50% of the basin volume. 16. X Litter, construction debris, and construction chemicals exposed to stormwater shall be prevented from becoming a pollutant source for stormwater discharges (e.g., screening outfalls, picked up daily). SOIL STABILIZATION PRACTICES Examples: establishment of temporary vegetation, establishment of permanent vegetation, mulching, geotextiles, sod stabilization, vegetative buffer strips, protection of trees, or preservation of mature vegetation. 17. X ATTACHMENT J - Schedule of Interim and Permanent Soil —Stabilization Practices. A schedule of the interim and permanent soil stabilization practices for the site is attached at the end of this form. 18. X Records must be kept at the site of the dates when major grading activities occur, the dates when construction activities temporarily or permanently cease on a portion of the site, and the dates when stabilization measures are initiated. TCEQ-0602 (Rev. 10/01/04) Page 3 of 4 19. X Stabilization practices must be initiated as soon as practicable where construction activities have temporarily or permanently ceased. ADMINISTRATIVE INFORMATION 20. X All structural controls will be inspected and maintained according to the submitted and approved operation and maintenance plan for the project. 21. X If any geologic or manmade features, such as caves, faults, sinkholes, etc., are discovered, all regulated activities near the feature will be immediately suspended. The appropriate TCEQ Regional Office shall be immediately notified. Regulated activities must cease and not continue until the TCEQ has reviewed and approved the methods proposed to protect the aquifer from any adverse impacts. 22. X Silt fences, diversion berms, and other temporary erosion and sediment controls will be constructed and maintained as appropriate to prevent pollutants from entering sensitive features discovered during construction. To the best of my knowledge, the responses to this form accurately reflect all information requested concerning the proposed regulated activities and methods to protect the Edwards Aquifer. This TEMPORARY STORMWATER SECTION is hereby submitted for TCEQ review and executive director approval. The application was prepared by: Anthony Serda, P.E. (Agent) Print Name of Customer/Agent tbirt /von Si art i omer/A ent Date 9 9 TCEQ-0602 (Rev. 10/01/04) Page 4 of 4 Fttyi Partners for a Better Quality of Life Form TCEQ-0602 Attachments ATTACHMENT A — SPILL RESPONSE ACTIONS Should an accidental release occur, it will be immediately contained by earthen dikes, berms or other appropriate measures. Free liquids will be stabilized promptly using bulking agents, absorbent pads, booms, soil or other appropriate material. Once no free liquids are present in the containment area, the released material will be picked up mechanically or by personnel wearing proper protective equipment and stored in 55 gallon steel drums or on plastic sheeting. Released material will be covered to prevent contact with stormwater. Stormwater runoff will be diverted around the stored material if necessary. Traffic will be routed around and away from any spill are to avoid spreading the spilled material to other areas. The Contractor is required to remediate any spills, and to immediately report spills (including sanitary sewer discharge) of reportable quantities to the National Response Center at (800) 424-8802, and one of the following: State Emergency Response Center (800) 832-8224 (if after hours), or to the TCEQ Regional Office (512) 339-2929 (if during business hours). Spills shall be reported within 24 hours unless other regulations require more expedient notification. ATTACHMENT B — POTENTIAL SOURCES OF CONTAMINATION Potential sources of contamination include the hydrocarbons and fuels required to service and operate the construction equipment, the materials and liquids used to conduct paving operations, various paints and solvents, and soil disturbed and mobilized during excavation. ATTACHMENT C — SEQUENCE OF MAJOR EVENTS 1. Install temporary stormwater BMPs per erosion and sedimentation control plan. • Rock Filter Dam (10 LF) • Inlet protection (36 LF) 2. Excavate location for swale and grade. 3. Stabilize and reseed disturbed areas. (432 SY) 4. Remove existing curb and gutter for curb cuts. 5. Install curb cuts, upstream and downstream of water quality swale. 6. Place concrete riprap as indicated on plans. (4.4 CY) 7. Sawcut existing pavement. (345 LF) 8. Work base material and embankment. 9. Place asphalt and concrete surface. The Avanon, Building i 10415 Morado Circle, Stake 200. Austin, Texas 78759 512.349.0700 • 512.349.0727 fax www.cpyi.com p8tyj Partners for a Better Quality of Life • Hot Mix Asphalt (370 SY) • Concrete Valley Gutter (99 SY) 10. Stabilize and reseed disturbed areas of the site. (776 SY) 11. Remove erosion control devices once site has been stabilized. • Rock Filter Dam (10 LF) • Inlet protection (36 LF) 12. Leave soil retention blanket in-place. ATTACHMENT D — TEMPORARY BEST MANAGEMENT PRACTICES During the construction phase, rock berms and inlet protection will be installed at the beginning of the construction phase at surface water discharge points and in roadside ditches to reduce flow velocities, reduce suspended solid loads and reduce the potential for erosion. All temporary BMPs will remain until the end of construction. Offsite water flows into the project and through these temporary BMPs, preventing pollution of surface water, groundwater or stormwater. On-site water flows into the through the same temporary BMPs, preventing pollution of surface water, groundwater or stormwater. By slowing down the offsite and on-site water, pollutants will have time to settle to the bottom of the temporary BMPs allow proper removal before entering surface streams, sensitive features or the aquifer. Existing drainage paths will not be affected by the temporary BMPs. The locations of temporary BMPs are shown on the Temporary Erosion and Sedimentation Control Plan sheets. Standard details show information relevant to BMP installation and maintenance. ATTACHMENT E — REQUEST TO TEMPORARILY SEAL A FEATURE Not applicable. ATTACHMENT F — STRUCTURAL PRACTICES Sediment derived from excavation and grading will be controlled through the use of rock berms and inlet protection. The Avelion, 6uiltliny 1 10415 Moredo Circle, Spirts 200 Austin„ Texas 78759 512,9493700.512349:0727 fax www epyi.ce n P8tYJ Partners for a Better Quality of Life ATTACHMENT G — DRAINAGE AREA MAP Attached — Drainage Area Map & Site Plan sheet. ATTACHMENT H — TEMPORARY SEDIMENT POND PLAN AND CALCULATIONS Sediment ponds are not planned for this project. ATTACHMENT 1— INSPECTION AND MAINTENANCE FOR BMPS Key to maintaining the performance of and efficiency of the temporary BMPs is inspection and repair when needed. The project will use an established schedule of inspection to identify the weak or failing sections of the sediment controls and institute repairs immediately to ensure the continued performance of the installed BMPs. BMPs will be inspected at least once every fourteen (14) calendar days and within twenty four (24) hours of the end of a storm of 0.5 inches or greater. Damaged BMPs will either be repaired or replaced as needed. If storms damage the BMPs, efforts will be made immediately to restore them to original performance levels. Should damage exceed the capacity to repair during storm events, alternate methods such as temporary fiber rolls or rock dams will be available. Other inspection and maintenance data can be found in the "SW3P Construction Notes" sheet. ATTACHMENT J — SCHEDULE OF INTERIM AND PERMANENT SOIL STABILIZATION PRACTICES When soil disturbance activities cease at a location, immediate soil stabilization actions will be implemented. Disturbed areas on which construction activities have ceased, temporarily or permanently, shall be stabilized within 14 calendar days unless they are scheduled to and do resume within 21 calendar days. The entire limits of construction will be reseeded once construction is complete. The Avallon, Building 1 10415 Morado Circle, Sake 200 Austin, Texas 78759 5512.349.0700.512349.07x7 fax www cpyi.corn Permanent Stormwater Section for Regulated Activities on the Edwards Aquifer Recharge Zone and Relating to 30 TAC §213.5(b)(4)(C), (D)(Ii), (E), and (5), Effective June 1, 1999 REGULATED ENTITY NAME: University Boulevard Eastbound Right Turn Lane at Sunrise Road Permanent best management practices (BMPs) and measures that will be used during and after construction is completed. 1. X Permanent BMPs and measures must be implemented to control the discharge of pollution from regulated activities after the completion of construction. 2. X These practices and measures have been designed, and will be constructed, operated, and maintained to insure that 80% of the incremental increase in the annual mass loading of total suspended solids (TSS) from the site caused by the regulated activity is removed. These quantities have been calculated in accordance with technical guidance prepared or accepted by the executive director. X The TCEQ Technical Guidance Manual (TGM) was used to design permanent BMPs and measures for this site. A technical guidance other than the TCEQ TGM was used to design permanent BMPs and measures for this site. The complete citation for the technical guidance that was used is provided below: 3. X Owners must insure that permanent BMPs and measures are constructed and function as designed. A Texas Licensed Professional Engineer must certify in writing that the permanent BMPs or measures were constructed as designed. The certification letter must be submitted to the appropriate regional office within 30 days of site completion. 4. N/A Where a site is used for low density single-family residential development and has 20 % or Tess impervious cover, other permanent BMPs are not required. This exemption from permanent BMPs must be recorded in the county deed records, with a notice that if the percent impervious cover increases above 20% or land use changes, the exemption for the whole site as described in the property boundaries required by 30 TAC §213.4(g) (relating to Application Processing and Approval), may no longer apply and the property owner must notify the appropriate regional office of these changes. This site will be used for low density single-family residential development and has 20% or less impervious cover. This site will be used for low density single-family residential development but has more than 20% impervious cover. X This site will not be used for low density single-family residential development. 5. N/A The executive director may waive the requirement for other permanent BMPs for multi- family residential developments, schools, or small business sites where 20% or less impervious cover is used at the site. This exemption from permanent BMPs must be recorded in the county deed records, with a notice that if the percent impervious cover increases above 20% or land use changes, the exemption for the whole site as described in the property boundaries required by 30 TAC §213.4(g) (relating to Application Processing and Approval), may no longer apply and the property owner must notify the appropriate regional office of these changes. TCEQ-0600 (Rev. 10/01/04) Page 1 of 3 ATTACHMENT A - 20% or Less Impervious Cover Waiver. This site will be used for multi -family residential developments, schools, or small business sites and has 20% or Tess impervious cover. A request to waive the requirements for other permanent BMPs and measures is found at the end of this form. This site will be used for multi -family residential developments, schools, or small business sites but has more than 20% impervious cover. X This site will not be used for multi -family residential developments, schools, or small business sites. 6. ATTACHMENT B - BMPs for Upgradient Stormwater. X A description of the BMPs and measures that will be used to prevent pollution of surface water, groundwater, or stormwater that originates upgradient from the site and flows across the site is identified as ATTACHMENT B at the end of this form. If no surface water, groundwater or stormwater originates upgradient from the site and flows across the site, an explanation is provided as ATTACHMENT B at the end of this form. If permanent BMPs or measures are not required to prevent pollution of surface water, groundwater, or stormwater that originates upgradient from the site and flows across the site, an explanation is provided as ATTACHMENT B at the end of this form. 7. ATTACHMENT C - BMPs for On-site Stormwater. X A description of the BMPs and measures that will be used to prevent pollution of surface water or groundwater that originates on-site or flows off the site, including pollution caused by contaminated stormwater runoff from the site is identified as ATTACHMENT C at the end of this form. If permanent BMPs or measures are not required to prevent pollution of surface water or groundwater that originates on-site or flows off the site, including pollution caused by con - mina e • s ormwa er runo - , an exp ana ion is prov end of this form. 8. N/A ATTACHMENT D - BMPs for Surface Streams. A description of the BMPs and measures that prevent pollutants from entering surface streams, sensitive features, or the aquifer is provided at the end of this form. Each feature identified in the Geologic Assessment as "sensitive" has been addressed. 9. X The applicant understands that to the extent practicable, BMPs and measures must maintain flow to naturally occurring sensitive features identified in either the geologic assessment, executive director review, or during excavation, blasting, or construction. X The permanent sealing of or diversion of flow from a naturally -occurring "sensitive" or "possibly sensitive" feature that accepts recharge to the Edwards Aquifer as a permanent pollution abatement measure has not been proposed for any naturally -occurring "sensitive" or "possibly sensitive" features on this site. ATTACHMENT E - Request to Seal Features. A request to seal a naturally - occurring "sensitive" or "possibly sensitive" feature, that includes a justification as to why no reasonable and practicable altemative exists, is found at the end of this form. A request and justification has been provided for each feature. 10. X ATTACHMENT F - Construction Plans. Construction plans and design calculations for the proposed permanent BMPs and measures have been prepared by or under the direct supervision of a Texas Licensed Professional Engineer. All construction plans and design information have been signed, sealed, and dated by the Texas Licensed Professional Engineer. Construction plans for the proposed permanent BMPs and measures are provided at the end of this form. Design Calculations, TCEQ TCEQ-0600 (Rev. 10/01/04) Page 2 of 3 Construction Notes, all man-made or naturally occurring geologic features, all proposed structural measures, and appropriate details must be shown on the construction plans. 11. X ATTACHMENT G - Inspection, Maintenance, Repair and Retrofit Plan. A plan for the inspection, maintenance, repair, and, if necessary, retrofit of the permanent BMPs and measures is provided at the end of this form. The plan has been prepared and certified by the engineer designing the permanent BMPs and measures. The plan has been signed by the owner or responsible party. The plan includes procedures for documenting inspections, maintenance, repairs, and, if necessary, retrofits as well as a discussion of record keeping procedures. 12. X The TCEQ Technical Guidance Manual (TGM) was used to design permanent BMPs and measures for this site. N/A Pilot -scale field testing (including water quality monitoring) may be required for BMPs that are not contained in technical guidance recognized by or prepared by the executive director. N/A ATTACHMENT H - Pilot -Scale Field Testing Plan. A plan for pilot -scale field testing is provided at the end of this form. 13. X ATTACHMENT I -Measures for Minimizing Surface Stream Contamination. A description of the measures that will be used to avoid or minimize surface stream contamination and changes in the way in which water enters a stream as a result of the construction and development is provided at the end of this form. The measures address increased stream flashing, the creation of stronger flows and in -stream velocities, and other in -stream effects caused by the regulated activity which increase erosion that results in water quality degradation. Responsibility for maintenance of permanent BMPs and measures after construction is complete. 14. X The applicant is responsible for maintaining the permanent BMPs after construction until such time as the maintenance obligation is either assumed in writing by another entity having ownership or control of the property (such as without limitation, an owner's association, a new property owner or lessee, a district, or municipality) or the ownership of the property is transferred to the entity. Such entity shall then be responsible for maintenance until another entity assumes such obligations in writing or ownership is transferred. 15. X A copy of the transfer of responsibility must be filed with the executive director at the appropriate regional office within 30 days of the transfer if the site is for use as a multiple single-family residential development, a multi -family residential development, or a non-residential development such as commercial, industrial, institutional, schools, and other sites where regulated activities occur. To the best of my knowledge, the responses to this form accurately reflect all information requested conceming the proposed regulated activities and methods to protect the Edwards Aquifer. This PERMANENT STORMWATER SECTION is hereby submitted for TCEQ review and executive director approval. The application was prepared by: Anthony Serda, P.E. (Agent) Print Name of Customer/Agent loin] 244 Signa f.G er/Agent Date TCEQ-0600 (Rev. 10/01/04) Page 3 of 3 Rtyj Partners for a Better Quality of Life Form TCEQ-0600 Attachments ATTACHMENT A - <20% IPERVIOUS COVER WAIVER Not applicable. ATTACHMENT B - BMPS FOR UPGRADIENT STORMWATER Surface water runoff that originates upgradient of the University Boulevard right turn lane site will follow its normal drainage path and be conveyed to and through the permanent BMP swale which is located downgradient of the project. The permanent BMP swale has been designed to capture enough runoff from on-site and off-site for sufficient water quality treatment. ATTACHMENT C — BMPS FOR ON-SITE STORMWATER Runoff from the proposed University Blvd right turn lane and upgradient roadway runoff from the existing roadway will be treated using grassy swales located adjacent to the existing roadway, within City right-of-way and downstream of the. turn lane improvement. Runoff will be diverted into the swale from the roadway via curb cuts, at least 1 -ft in width to prevent clogging. The grassy swale has been designed to remove more pollution than is required for a factor of safety. Grassy swale design calculations are attached. ATTACHMENT D — BMPS FOR SURFACE STREAMS Not applicable. ATTACHMENT E — SENSITIVE FEATURES FLOW/SEAL Not applicable. ATTACHMENT F — CONSTRUCTION PLANS Attached. ATTACHMENT H — PILOT -SCALE TESTING PLAN The Avhllon, outdn►g ! 10415.Morado 4tiftitCircle,:200 • Austin, Texas 78759 512.349.0700.512.349727 fax www cpyi.com ty Q Partners for a Better Quality of Life Not applicable. ATTACHMENT G — INSPECTION, MAINT., REPAIR & RETROFIT PLAN Attached. ATTACHMENT I — MEASURES FOR MINIMIZING SURFACE STREAM CONTAMINATION Surface stream contamination will be minimized through the use of grassy swales designed to treat runoff from the site. This grassy swale that conveys the treated stormwater has been designed to maintain flow velocities below erosive levels. The Availoo, Building! 10415 Morado Circle, Suite 200 Austin, Texas 78759 512349.0700.512.349A727 fax www tpyi.com Form TCEQ-0600 ATTACHMENT G Maintenance Plan and Schedule for Permanent Erosion Controls Grassy Swales PROJECT NAME University Boulevard Eastbound Right Turn Lane at Sunrise Road LOCATION Along the south side of University Blvd. from Sunrise Road to approx. 345 -ft west of Sunrise Rd: within existing City right-of-way CITY, STATE ZIP Round Rock. Texas 78665 Grassy Swales: Seasonal Mowing -The grassy swale shall be mowed as needed to limit vegetation And Lawn Care: to a height of 6", using a mulching mower (or removal of clippings). -Weed and insect control practices shall also be implemented as needed; however, herbicide use should be kept to a minimum. -The grassy swale shall be kept free of debris and litter. -Swale area must have at least 80% vegetated cover and re -seeded as necessary. Semi -Annual -Inspect and provide maintenance for the grassy swale at least Inspection: twice annually and after heavy runoff for: • erosion, channelization or damage to vegetation. Bare spots and areas of erosion or channelization identified during inspections must be filled, compacted and re -seeded such that a uniform grass cover is reestablished. • Ensure upgradient and downgradient curb cuts are free of debris and litter. • Remove excess sediment buildup of at least 3 inches at any spot or which covers vegetation. Heavy machinery shall not be used for sediment removal. Re -seed any damaged areas during the sediment removal process using the same seed mix used during construction. Provide soil stabilization methods as required during the re -vegetation process. Attachment G - Maintenance Plan Sheet 1 of 2 Documentation: All activity preformed on the grassy swale shall be maintained in one consolidated file which indicates, at minimum: • Inspection/Maintenance Date • Indication all items presented above have been checked • Description of any maintenance items provided • Expected date of next inspection An amended copy of this document will be provided to the TCEQ within thirty (30) days of any changes in the following information. Responsible Party for Maintenance City of Round Rock Contact Person Address City, State Zip Telephone Number 512- -5410 Steve Norwood 221 E. Main Street Round Rock. Texas 78664 Signature of Responsible Party Attachment G - Maintenance Plan Sheet 2 of 2 Agent Authorization Form For Required Signature Edwards Aquifer Protection Program Relating to 30 TAC Chapter 213 Effective June 1, 1999 Steve Norwood Print Name City Manager Title - Owner/President/Other of City of Round Rock, Texas Corporation/Partnership/Entity Name have authorized Anthony Serda, P.E. Print Name of Agent/Engineer of CP&Y, Inc. Print Name of Firm to represent and act on the behalf of the above named Corporation, Partnership, or Entity for the purpose of preparing and submitting this plan application to the Texas Commission on Environmental Quality (TCEQ) for the review and approval consideration of regulated activities. I also understand that: 1. The applicant is responsible for compliance with 30 Texas Administrative Code Chapter 213 and any condition of the TCEQ's approval letter. The TCEQ is authorized to assess administrative penalties of up to $10,000 per day per violation. 2. For those submitting an application who are not the property owner, but who have the right to control and possess the property, additional authorization is required from the owner. 3. Application fees are due and payable at the time the application is submitted. The application fee must be sent to the TCEQ cashier or to the appropriate regional office. The application will not be considered until the correct fee is received by the commission. 4. A notarized copy of the Agent Authorization Form must be provided for the person preparing the application, and this form must accompany the completed application. 5. No person shall commence any regulated activity on the Edwards Aquifer Recharge Zone, Contributing Zone or Transition Zone until the appropriate application for the activity has been filed with and approved by the Executive Director. TCEQ-0599 (Rev.04/01/2010) Page 1 of 2 SIGNATURE PAGE: Applicant's Signature Date THE STATEVvrrO(F((�� § County of a § BEFORE ME, the undersigned authority, on this day personally appeared VoNaknown to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that (s)he executed same for the purpose and consideration therein expressed. GIVEN under my hand and seal of office on thisI day of Ci , 2M( . SDA/hA, .in0efot NOTARY PUBLIC Sam Wk Typed or Printed Name of Notary MY COMMISSION EXPIRES: 114 11t W12--.4 TCEQ-0599 (Rev.04/01 /2010) Page 2 of 2 Texas Commission on Environmental Quality Edwards Aquifer Protection Program Application Fee Form NAME OF PROPOSED REGULATED ENTITY: University Blvd Eastbound Right Tum Lane at Sunrise Rd REGULATED ENTITY LOCATION: Round Rock, Texas NAME OF CUSTOMER: City of Round Rock, Texas CONTACT PERSON: Anthony Serda, P.E. (Agent) PHONE: 512-349-0700 (Please Print) Customer Reference Number (if issued): CN 600413181 (nine digits) Regulated Entity Reference Number(if issued): RN (nine digits) Austin Regional Office (3373) ❑ Hays ❑ Travis ® Williamson San Antonio Regional Office (3362) ❑ Bexar ❑ Comal ❑ Medina El Kinney ❑ Uvalde Application fees must be paid by check, certified check, or money order, payable to the Texas Commission on Environmental Quality. Your canceled check will serve as your receipt. This form must be submitted with your fee payment. This payment is being submitted to (Check One): ® Austin Regional Office ❑ San Antonio Regional Office ❑ Mailed to TCEQ: TCEQ — Cashier Revenues Section Mail Code 214 P.O. Box 13088 Austin, TX 78711-3088 ❑ Ovemight Delivery to TCEQ: TCEQ - Cashier 12100 Park 35 Circle Building A, 3rd Floor Austin, TX 78753 512/239-0347 Site Location (Check All That Apply): ® Recharge Zone ❑ Contributing Zone ❑ Transition Zone Type `of Plar ° , . ; Si•ze> ,," ;.dee Due Water Pollution Abatement Plan, Contributing Zone Pian: One Single Family Residential Dwelling Acres $ Water Pollution Abatement Plan, Contributing Zone Plan: Multiple Single Family Residential and Parks Acres $ Water Pollution Abatement Plan, Contributing Zone Plan: Non-residential Acres $ Sewage Collection System L.F. $ Lift Stations without sewer lines Acres $ Underground or Aboveground Storage Tank Facility Tanks $ Piping System(s)(only) Each $ Exception Each $500 Extension of Time Each $ Signa Date 4. In /tott if you have questions on how to fill out this form or about the Edwards Aquifer protection program, please contact us at 2101490- 3096 for projects located in the San Antonio Region or 612/339-2929 for projects located in the Austin Region. Individuals are entitled to request and review their personal Information that the agency gathers on its forms. They may also have any errors in their information corrected. To review such information, contact us at 512/239-3282. TCEQ-0574 (Rev. 4/25/08) Page 1 of 2 Texas Commission on Environmental Quality Edwards Aquifer Protection Program Application Fee Schedule 30 TAC Chapter 213 (effective 05/0112008) Water Pollution Abatement Plans and Modifications Contrib PROJECT PROJECT AREA IN ACRES FEE One Single Family Residential Dwelling < 5 $650 Multiple Single Family Residential and Parks < 5 $1,500 5 < 10 $3,000 10 < 40 $4,000 40 < 100 $6,500 100 < 500 $8,000 Z 500 $10,000 Non-residential (Commercial, industrial, institutional, multi -family residential, schools, and other sites where < 1 1 < 5 $3,000 $4,000 regulated activities will occur) 5 < 10 $5,000 10 < 40 $6,500 40 < 100 $8,000 Z 100 $10,000 Organized Sewage Collection Systems and Modifications 1 PROJECT ;COST PERLINEAR FOOT MINIMUM FEE MAXIMUM FEE Sewage Collection Systems $0.50 $650 - $6,500 underground and Aboveground Storage Tank System Facility Plans and Modifications °. .. � PROJECT COST PERT NK OR PIPING SYSTEM .:� �. MINIMUM FEE° _ MAXIMUM FEE Underground and Aboveground Storage Tank Facility $650 $650 - $6,500 Exception Requests Extension of Time Requests PROJECT�EE PROJECT Exception Request $500 Extension of Time Requests PROJECT�EE Extension of Time Request $150 TCEQ-0574 (Rev. 4/25/08) Page 2 of 2 TCEQ Core Data Form For detailed instructions regarding completion of this form, please read the Core Data Form Instructions or call 512-239-5175. SECTION I: General Information 1. Reason for Submission (If other is checked please describe in space provided) or Authorization (Core Data Form should be submitted with the program application) ►Z� New Permit, Registration ❑ Renewal (Core Data Fonn should be submitted with the renewal form) ❑ Other 7. General Customer Information 2. Attachments Describe Any Attachments: (ex. Title V Application, Waste Transporter Application, etc.) Change in Regulated Entity Ownership No Chan • e" Recharge and Transition Zone Exception Request @ Yes No 3. Customer Reference Number (f issued) Follow this link to search ❑ Sole Proprietorship- D.B.A 4. Regulated Entity Reference Number (if issued) CN 600413181 for CN or RN numbers in RN Central Registry" SECTION II: Customer Information . Effective Date for Customer Information Updates (mmld 6. Customer Role (Proposed or Actual) - as it relates to the Regulated Entitv listed on this form. Please check only mg of the following: ❑Owner ❑ Operator ❑Occupational Licensee ❑ Responsible Party ❑ Owner & Operator Voluntary Cleanup Applicant ❑Other: 7. General Customer Information ❑ New Customer ❑ Update to Customer Information ❑ ❑Change in Legal Name (Verifiable with the Texas Secretary of State) L Change in Regulated Entity Ownership No Chan • e" "if "No Change" and Section 1 Is complete, skip to Section 111— Regulated Entity Information. 8. Type of Customer: ❑ Corporation ❑ Individual ❑ Sole Proprietorship- D.B.A ❑ City Govemment ❑ County Govemment ❑ Federal Government ❑ State Govemment ❑ Other Govemment ❑ General Partnership ❑ Limited Partnership ❑ Other. if new Customer. enter previous Customer End Date: 9. Customer Legal Name (if en individual, print last name first: ex: Doe, John) below ....... _ 10. Mailing Address. City State ZIP ZIP + 4 11. Country Mailing nformation (foutside USA) 12. E -Mail Address (if applicable) 13. Telephone Number ( ) - 14. Extension or Code 1 15. Fax Number (if applicable) I( ) - 16. Federal Tax ID fadlgtts) 17. TX State Franchise Tax ID rir does) I 18. DUNS Nurnberg appy ) I 19. TX SOS Filing Number (if a t) 20. Number of Employees : ❑ 0-20 ❑ 21-100 ❑ 101-250 ❑ 251-500 ❑ 501 and higher 21. Independently Owned and Operated? 1 ❑ Yes ❑ No SECTION III: Regulated Entity Information 22. General Regulated Entity Information (If 'New Regulated Entity' is selected below this form should be accompanied by a pend application) ® New Regulated Entity 0 Update to Regulated Entity Name 0 Update to Regulated Entity Information 0 No Change" (see belo *It 'WO CHANGE' Is checked and Section I is complete, skip to Section N, Preparer Information. 23. Regulated Entity Name (name of the site where the regulated action is taking place) University Boulevard Eastbound Right Turn Lane at Sunrise Road Trcf1-Inann /nQln71 Pana 1 of 2 24. Street Address of the Regulated Entity: No P.O. Boxes l Dam Safety ■ City ►5 State 1 ZIP 1 ZIP + 4 25. Mailing Address: City of Round Rock, c/o Steve Norwood 221 E. Main Street City Round Rock State TX ZIP 78664 ZIP + 4 5299 26.`E -Mali Address: snorwood@round-rock.tx.us 27. Telephone Number 28. Extension or Code 29. Fax Number (if applicable) ( 512) 218-5410 ( 512) 218-7097 30.'Primary SIC Code (4 digits) 31. Secondary SIC Code (4 digits) 32. Primary NAICS Code 33. Secondary NAICS Code (5 or 6 digits) (5 or 6 digits) 1611 1611 237310 237310 34. What is the Primary Business of this entity? (Please do not repeat the SIC or NAICS description.) Construction of roadway improvements Questions 34 — 37 address geographic location. Please refer to the instructions for applicability. 35. Description to Physical Location: Located on University Boulevard beginning 345 -ft west of Sunrise Road and ending at Sunrise Road. 36. Nearest City County State Nearest ZIP Code Round Rock Williamson Tx 78665 37. Latitude (N) In Decimal: 30.5614404 38. Longitude (W) In Declmal: -97.6807992 Degrees Minutes Seconds Degrees Minutes Seconds 30 33 41.184 -97 40 50.8758 39. TCEQ Programs and ID Numbers Check all Programs and write in the permits/registration numbers that will be affected by the updates submitted on this form or the updates may not be made. If your Program is not listed, check other and write it in. See the Core Data Form instructions for additional guidance. • Dam Safety ■ Districts ►5 Edwards Aquifer 1 Industrial Hazardous Waste 1 Municipai Solid Waste • New Source Review — Air ■ OSSF 1 Petroleum Storage Tank • PWS • Sludge ■ Stormwater • Title V — Air ■ Tires ■ Used Oil • Utilities • Voluntary Cleanup • Waste Water • Wastewater Agriculture • Water Rights ■ Other. SECTION IV: Preparer Information AO. Name: Anthony Serda, P.E. CP&Y, Inc. 41. Title: Project Engineer 42. Telephone Number 43. ExtiCode 44. Fax Number 45. E -Mail Address ( 512) 349-0700 128 ( 512) 349-0727 aserda@cpyi.com SECTION V: Authorized Signature 46. By my signature below, I certify, to the best of my lkaowledge, that the information provided in this form is true and complete, and that I have signature authority to submit this form on behalf of the entity specified in Section II, Field 9 and/or as required for the updates to the ID numbers identified in field 39. (See the Core Data Form instructions for more information on who should sign this form.) Company: City of Round Rock Job Title: City Manager Namean p * : Steve Norwood Phone: Date: (,51122) 218-5410 /0/4 tel' Signature: 7YMCA A /1•R/A /AIS/A7\ Darla 9 of