The URL can be used to link to this page

CM-09-04-052• 'ROUND ROCK, TEXAS PURPOSE. PASSION. PROSPERITY RECHARGE ZONE EXCEPTION REQUEST FOR LITTLE OAKS SUBDIVISION ROUND ROCK, TEXAS Prepared by: City of Round Rock 2008 Enterprise Drive Round Rock, Texas 78664 MARCH 2009 ROUND ROCK, TEXAS PURPOSE. PASSION. PROSPERITY. April 3, 2009 Mayor Alan McGraw Mayor Pro -tem Joe Clifford Councilmembers Rufus Honeycutt George White Carlos T. Salinas Scott Rhode Kris Whitfield City Manager James R. Nuse, P.E. City Attorney Stephan L. Sheets Edwards Aquifer Protection Program of the Austin Region Texas Commission on Environmental Quality % Ms. Carolyn Runyon, Water Program Manager 2800 South IH 35, Suite 100 Austin, Texas 78704 Re: Exception Request for Little Oaks Subdivision Improvements Project in Round Rock, Texas CN: 600413181 Dear Ms. Runyon: Enclosed are the TCEQ Edwards Aquifer Recharge Zone Exception Request Application forms for the City of Round Rock Little Oaks Subdivision Project. In this application an exception from the requirements of filing a Water Pollution Abatement Plan (WPAP), performing a Geologic Assessment, and providing permanent water quality controls for this project is being requested. This project consists of reconstruction of existing rural -type residential streets to urban -type curbed streets, concrete sidewalks, and water, wastewater, and drainage infrastructure installation/replacement as appropriate. The total amount of planned new impervious cover will be approximately eleven thousand seven hundred (11,700) square feet or twenty-seven hundredth's (0.27) of an acre, with the maximum depth disturbance for the construction to be five feet (5') in the limited areas where the utilities will be replaced or adjusted. We request an exception from the requirements to file a Water Pollution Abatement Plan (WPAP) to install permanent water quality controls and to provide a geologic assessment for the project. Because the additional impervious cover being added by the project is small, the depth of excavation disturbance will be minimal and within areas that were excavated for the original construction, the area is fully developed as single family with no known karst features, and the storm water from the project will flow within the paved sections of Brentwood Street, Glenwood Street, Tanglewood Street, and Briarwood Street from which it will be collected into an existing discharge pipe which currently carries some flows from this sub -division, we feel the project will not negatively affect the Edwards Aquifer, and our request is justified. Enclosed for your review is one (1) original application with the required attachments, three (3) full copies of the application package, and one check made payable to the Texas Commission on Environmental Quality in the amount of $500.00 for the application fee. We appreciate your expeditious review of this application. We look forward to your response. If there is a question or additional information is needed, please contact me by telephone at (512) 218-6605 or via email at ezapata cLround- rock.tx. us. Sincerely, dward Zap Project Man 'ger Attachments: Exception Request Documents cc: Daniel L. Halden, PE, City Engineer, City of Round Rock File RTZ Exception Application —mod.doc/EZ CITY OF ROUND ROCK ENGINEERING AND DEVELOPMENT SERVICES, 2008 Enterprise Drive • Round Rock, Texas 78664 Phone 512.218.5555 • Fax 512.218.5563 • www.roundrocktexas.gov TABLE OF CONTENTS Page Cover Sheet 1 Cover Letter 2 Table of Contents 3 General Information Form 00587 (W/ Attachment A- D) 4 Recharge and Transition Zone Exception Request Form 0628 (w/ Attachment A -B) 10 Temporary Stormwater Section 0602 (W/ Attachment A,B,C,D,F,1,&J) 13 Permanent Stormwater Section 0600 (w/ Attachment B) 24 Agent Authorization Form 0599 28 Application Fee Form 0574 29 TCEQ Core Data Form 10400 31 TCEQ WPAP General Construction Notes 0592 (w/ modifications for this project) 33 Little Oaks Subdivision Project Plans (11 x 17 Sheets) 35 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: Little Oaks Subdivision COUNTY: Williamson STREAM BASIN: Brushy Creek EDWARDS AQUIFER: X RECHARGE ZONE _ TRANSITION ZONE PLAN TYPE: CUSTOMER INFORMATION 1. Customer (Applicant): Contact Person: Entity: Mailing Address: City, State: Telephone: WPAP SCS AST UST James R. Nuse, PE, City Manager City of Round Rock 221 East Main Street Round Rock, Texas Zip: 78664 (512) 218-5400 Agent/Representative (If any): Contact Person: Entity: Mailing Address: City, State: Telephone: X EXCEPTION MODIFICATION FAX: (512) 218-7097 Edward Zapata City of Round Rock 2008 Enterprise Drive Round Rock, Texas Zip: 78664 (512) 218-6605 FAX: (512) 218-5563 2. X This project is inside the city limits 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. Little Oaks Subdivision is located along Round Rock Avenue (RM 620) approximately 0.75 miles west of IH -35. Because this activity is within the Edwards Aquifer Recharge Zone (EARZ), the City must address State requirements. 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. TCEQ-0587 (Rev. 10/01/2004) Page 4 of 34 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 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. Staking has not been provided but this project site/regulated activity is easily found. Location is clearly described on the forms and depicted on the maps as part of the complete application. An exception to a Geologic Assessment is part of this request. 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 X Existing residential site 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 standards which are defined in §330.41(b), (c), and (d) of this title (relating to Types of Municipal Solid Waste Facilities). 10. X 1 am aware that the following activities are prohibited on the Transition Zone and are not proposed for this project: (1) waste disposal wells regulated under 30 TAC Chapter 331 (relating to Underground Injection Control); (2) land disposal of Class I wastes, as defined in 30 TAC §335.1; and (3) 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 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. A Contributing Zone Plan. 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 three (3) copies of the completed application to the appropriate regional office for distribution by the TCEQ to the local municipality or county, groundwater conservation districts, and the TCEQ's Central Office. 14. X No person shall commence any regulated activity until the Edwards Aquifer Protection Pian(s) for the activity has been filed with and approved by the executive director. No person shall commence any regulated activity until the Contributing Zone Plan for the activity has been filed with 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: Edward Zapata Print Name of C}istomer/Agent 1; Signature of JCUstomer/Agent Date L4/,3/ 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. r 'rn /1CO, /0.... 4 111/1. lf1f11A\ Trcr• nro, 5 Heti. ,/" (PFLUGERVILLE WEST) 6444 I NW SCALE 1:24 000 THREE POINTS 3.6 MI. AUSTIN (STATE CAPITOL) 18 MI. I� t • r 40' CONTOUR INTERVAL 10 FEET NATIONAL GEODETIC VERTICAL DATUM OF T/�C11 MG 07 ATTACHMENT C — Project Description The Little Oaks Subdivision project consists of reconstruction of existing rural -type residential streets to urban -type curbed streets, concrete sidewalks, and water, wastewater, and drainage infrastructure installation/replacement as appropriate. The total amount of planned additional impervious cover will be approximately eleven thousand seven hundred (11,700) square feet, with the maximum depth disturbance for the construction to be Tess than five feet (5') in the limited areas were the utilities will be replaced or adjusted. Storm water run off is and will be received by the Little Oaks Subdivision from a limited drainage basin adjacent to the neighborhood's south boundary. Under the existing conditions all storm water runoff leaving the subdivision flows into Brushy Creek via one of two routes. One route is the bar ditch that flows west along the south of RR 620 to a culvert crossing RR 620 to discharge into a minor tributary of Brushy Creek. The second route is captured by area grate inlets into an underground storm sewer pipe down Briarwood Street which crosses RR 620 as a 42" Reinforced Concrete Pipe to discharge into a minor tributary of Brushy Creek. Storm water run off from Little Oaks Subdivision travels approximately one hundred fifty feet (150') in each of these minor tributaries to Brushy Creek's main channel. The proposed improvements will enhance the storm water run off capture with the addition of lateral branches with curb inlets to route most of the drainage through the existing storm sewer pipe down Briarwood Street. In addition, the proposed project will be increasing the impervious cover a very small amount in relation to the existing impervious cover in the drainage basin. Reducing grades in the yards and education through our MS4 program • in the care of yards will allow for more pervious soils and less induction of chemicals into the storm water run. The removal of areas of bare ground, and reaches exposed road base will reduce the suspended solids Toad in the storm water run off. Replacement of existing bar ditches and dysfunctional driveways, which currently pond storm water run off creating breeding beds for bacteria and insects, will improve the area environmental quality. These improvements and the City of Round Rocks MS4 program will provide low cost long term mitigation of pollution (suspended solids, chemical, insect, & bacteria). To achieve these modifications, the removal and replacement of exiting street pavement and sections of driveway aprons as needed are included in the work scope. Approximately twenty- seven hundredth's (0.27) of an acre will be added to the current impervious cover in the drainage basin after completion of the construction. All of the abutting property along this proposed project is currently developed as single family units. Due to the facts that the project will only create a small net increase in impervious cover, that the majority of the storm water that falls on the completed project will be directed directly into Brushy Creek, that the depth of the construction excavation will be minimal in previously disturbed soils, and the improvements will mitigate pollution (suspended solids, chemical, & bacteria), an exception from the requirements of filing a Water Pollution Abatement Plan (WPAP), performing a Geologic Assessment, and providing permanent water quality controls for the project is being requested. Recharge And Transition Zone Exception Request Form 30 TAC §213.9 Effective June 1, 1999 Regulated Entity Name: Bagdad Avenue Parking and Drive-Thru 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 One (1) original and three (3) copies of the completed application has been submitted to the appropriate regional office of the TCEQ. 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 concerning 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: Edward Zapata Print Name of Customer/Agent 1(/ i 44A(I Signature of stomer/Agent Date TCEQ-0628 (Rev. 10/01/04) Page 10 of 34 ATTACHMENT A — Nature of Exception This exception request is to allow for the construction of a small net increase in impervious cover, within an area where there is existing impervious cover, without filing a Water Pollution Abatement Plan (WPAP), performing a Geologic Assessment, and providing permanent water quality controls. The project will consists of reconstruction of four existing residential rural -type streets to urban -type curb streets, installing new concrete sidewalks, and installation/replacement of drainage infrastructure, water, wastewater as appropriate within Little Oaks Subdivision. The total amount of planned additional impervious cover will be approximately eleven thousand seven hundred (11,700) square feet, or twenty-seven hundredth's (0.27) of an acre. The construction site receives nominal amount of runoff. Preliminary plans call for thirty foot (30') wide streets (face -of - curb to face -of -curb), four foot (4') sidewalks along one side of street, and installation/replacement of drainage, water, and wastewater infrastructure. To achieve this type of construction in this single family developed neighborhood where no area for construction staging is availed and access to all of the units has to be maintained require a close as you go mythology process. Haul away of spoils and placement of material will have to be performed as they are removed or delivered. Trucks will be loaded and emptied without leaving the impervious surface areas that is not being disturbed. The work zone will reduce normal traffic loadings in the vicinity while construction is performed. The construction time for this project is estimated at 180 calendar days (6 months). Because of the close as you go mythology process of construction will be required in this project dynamic TBMPs filter Togs/rolls and mobile wheel wash units will be engaged when any rainfall events are predicted. TCEQ-0628 (Rev. 10/01/04) Page 11 of 34 ATTACHMENT B — Documentation of Equivalent Water Quality Protection The construction will produce a small net increase in impervious cover. Because of the close as you go mythology process of construction will be required on this project there never will be large disturbed areas that will be able to contribute suspended solids in the stormwater run off. With the addition of dynamic TBMPs such as filter Togs/rolls and mobile wheel wash units engaged when any rainfall events are predicted, pollution will be adequately mitigated. TCEQ-0628 (Rev. 10/01/04) Page 12 of 34 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: City of Round Rock 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. X 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: Brushy Creek 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. TCEQ-0602 (Rev. 10/01/04) Page 13 of 34 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. 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 alternative 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. N/A 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 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 TCEQ-0602 (Rev. 10/01/04) Page 14 of 34 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, repair, and, if necessary, retrofit is provided at the end of this form. A description of documentation procedures and record keeping practices is included in the plan. 13. X All control measures must be properly selected, installed, and maintained in accordance with the manufacturers specifications and good engineering practices. If periodic inspections by the applicant or the executive director, or other information indicates a control has been used inappropriately, or incorrectly, the applicant must replace or modify the control for site situations. 14. 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. N/A 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. 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. TCEQ-0602 (Rev. 10/01/04) Page 15 of 34 �2. 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: Edward Zapata Print Name of Customer/Agent 4-kr,(v/ 4 Agent /Date Signature of C TCEQ-0602 (Rev. 10/01/04) Page 16 of 34 ATTACHMENT A — Spill Response Actions This proposed site has limited rights-of-way space; therefore most materials will be placed as they arrive on site or hauled away as they are removed. At most, small onsite material storage areas will be maintained to keep limited quantities of materials for use that day. Liquid containers will be kept closed when fluids are not being removed and drip pans will be under any containers with valves or spigots attached. All spills of any size will be immediately contained and all contaminated material placed into a proper container designed for transporting the hazardous materials. Containers will be sent to an approved hazardous materials site for proper disposal. There are two City fire station approximately one half (1) mile from the site with hazmat trained personnel on duty. The TCEQ will be contacted immediately as to the type and nature of all significant hazardous materials spills. The TCEQ will be notified as to the destination and travel days of any contaminated material. See related items in ATTACHMENT D — Temporary Best Management Practices and Measures TCEQ-0602 (Rev_ 10/01/04) Page 17 of 34 ATTACHMENT B — Potential Sources of Contamination Possible sources of contamination are: 1) Vehicles (Traveling Public, Contractor's Trucks, & Employees) 2) Non Road Legal Equipment (Skid Steers, Loaders, etc) 3) Excavated Areas 4) Portland Cement Concrete 5) Paint 6) Construction Debris 7) Asphaltic Materials 8) Grease 9) Oil 10) Gas TCEQ-0602 (Rev. 10/01/04) Page 18 of 34 ATTACHMENT C — Sequence of Construction 1. Contractor will schedule phases of construction that do not exceed the work which can be completed within a week, not including the weekend. 2. Excavations will be closed for weekends, holidays, and any other days when work is not schedule to proceed. 3. Install all of the project construction signage. 4. Install temporary erosion and sedimentation control on the inlets at Briarwood Street. 5. Coordinate with residents to minimize impact during construction. 6. Set up, move, maintain, and remove Traffic Control as needed. 7. Perform Items 8 through 20 as applicable. 8. Saw cut, raze existing structures (sidewalks, pavement, driveway, etc), and excavate areas to be worked. 9. Haul away all spoils as excavated. 10. Grade and compact sub -grade. 11. Deliver, install and compact flexible base material as needed. 12. Form, install steel, pour, and finish concrete as needed. 13. Deliver, install and compact backfill behind curb and gutter sections. 14. Deliver, install and compact asphaltic base. 15. Deliver, and install top soil, sod, and vegetation. 16. Deliver, install, and compact HMAC mat. 17. Deliver and install pavement makings (paint, buttons, etc) and signage. 18. Clean existing pavement adjacent to the work site at the close of each work day or set-up a mobile wheel washing operation. 19. Collect all construction debris and place in a covered container, at least daily. 20. Covered containers will be closed and emptied at least weekly or when 3/ full. 21. Repeat Task Items 8 through 20 until project acceptance letter is received by contractor. 22. Final walk-through with the Contractor and Engineer. 23. Final acceptance letter for the project. 24. Remove all of the project construction signage. Disturbed Area Approximately eighty-three thousand two hundred (83,200) square feet of total disturbed area is anticipated. Approximately eighty-six percent (86%) of the area to be disturbed is existing impervious cover. The net increase in impervious cover will be approximately eleven thousand seven hundred (11,700) square feet, which is twenty-seven hundredth's (0.27) of an acre. TCEQ-0602 (Rev. 10/01/04) Page 19 of 34 ATTACHMENT D — Temporary Best Management Practices and Measures (TBMP's) TBMP's proposed to be utilized in the temporary Storm Water Pollution Prevention Plan (SW3P) 1 during the construction of the proposed Little Oaks Subdivision project are: 1) Construction phases are to be completed in the same work week to minimize exposure. 2) Install inlet protection at inlet openings along Briarwood Street before beginning any excavation work. 3) Check, re -set, and install dynamic run-off control measures at the end of each work day and before a predicted storm event. 4) Provide and maintain covered trash and debris containers. 5) Existing impervious surfaces to be cleaned of spoils and any other loose materials at the end of the work period. 6) Control employee and equipment parking 7) Daily maintenance of the control measures. 8) Work restrictions on Ozone Action Days. TCEQ-0602 (Rev. 10/01/04) Page 20 of 34 ATTACHMENT F — Structural Practices The Little Oaks Subdivision proposed construction site receives limited storm water runoff. The deepest excavation for the proposed project will be approximately five feet (5') below the existing ground level or existing surface of the street pavement. Because the project involves reconfiguration of pavements (concrete and asphalt), and the areas of excavation will be immediately abutting and oriented longitudinally along an existing street, typical silt fencing installation or implementing structural controls would be problematic. However, the excavated areas will provide some sediment capturing detention of storm water runoff while open during the occurrence of an unpredicted rain fall event. This with the addition of dynamic TBMPs such as filter logs/rolls and mobile wheel wash units engaged when any rainfall events are predicted, pollution will be adequately mitigated. TCEQ-0602 (Rev. 10/01/04) Page 21 of 34 ATTACHMENT 1— Inspection and Maintenance for TBMP's All temporary erosion and sedimentation control measures require good house keeping practices which must be maintained to have an effective operating condition. The plans require daily cleaning and inspection to maintain this system of TBMP's. If site inspections identify problems, the contractor will be required to perform the necessary maintenance to ensure the continued effectiveness of storm water controls. TCEQ-0602 (Rev. 10/01/04) Page 22 of 34 L ATTACHMENT J — Schedule of Interim and Permanent Soil Stabilization Practices Permanent soil stabilization practices will be used, including the use of sod to establish permanent vegetation. Stabilization measures shall be on-going as each phase of the construction activities progresses. TCEQ-0602 (Rev. 10/01/04) Page 23 of 34 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: City of Round Rock Permanent best management practices (BMPs) and measures that will be used during and after construction is completed. 1. N/A Permanent BMPs and measures must be implemented to control the discharge of pollution from regulated activities after the completion of construction. 2. N/A 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. 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. N/A 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. 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. 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 less 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. TCEQ-0600 (Rev. 10/01/04) Page 24 of 34 • 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. N/A 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. N/A 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. N/A 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. N/A 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 contaminated stormwater runoff, an explanation is provided as ATTACHMENT C at the 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" or "possibly sensitive" has been addressed. 9. N/A 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. 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 alternative exists, is found at the end of this form. A request and justification has been provided for each feature. 10. N/A 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 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 TCEQ-0600 (Rev. 10/01/04) Page 25 of 34 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. N/A The TCEQ Technical Guidance Manual (TGM) was used to design permanent BMPs and measures for this site. 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. ATTACHMENT H - Pilot -Scale Field Testing Plan. A plan for pilot -scale field testing is provided at the end of this form. 13. N/A ATTACHMENT 1 -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. N/A 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. N/A 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 occur. To the best of my knowledge, the responses to this form accurately reflect regulated activities all information requested concerning 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: Edward Zapata Print Name of Cuptom/A• -nt 41/4 Pi nature of C s mer/ gent Date TCEQ-0600 (Rev. 10/01/04) Page 26 of 34 f Or ATTACHMENT B — BMPs and measures that will be used to prevent pollution Permanent soil stabilization practices will be used, including the use of sod to establish permanent vegetation. Stabilization measures shall be on-going as each phase of the construction activities progresses. TCEQ-0600 (Rev. 10/01/04) Page 27 of 34 Agent Authorization Form For Required Signature Edwards Aquifer Protection Program Relating to 30 TAC Chapter 213 Effective June 1, 1999 1 James R Nuse, PE, City Manager, of the City of Round Rock have authorized Edward Zapata of the City of Round Rock 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 applicants 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. Date THE STATE OF TEXAS § County of Williamson § BEFORE ME, the undersigned authority, on this day personally appeared James R. Nuse, PE, known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he executed same for the purpose and consideration therein expressed. GIVEN under my hand and seal of office on this "," day of 1 , uv`. Notary Public Signature MY COMMISSION EXPIRES: rr.rr, l\Cnl\ In.... 4 AI/14 IFA\ YAvrn 1—. w14�-fe Typed or Printed Name of Notary �4 zou SARA L WHITE MY COMMISSION EXPIRES July11,2012 n...... 7G ..i 7A • Texas Commission on Environmental Quality Edwards Aquifer Protection Program Application Fee Form NAME OF PROPOSED REGULATED ENTITY: Little Oaks Subdivision REGULATED ENTITY LOCATION: Round Rock, Texas NAME OF CUSTOMER: City of Round Rock CONTACT PERSON: Edward Zapata PHONE: (512) 218-6605 (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 San Antonio Regional Office (3362) ❑ Bexar ❑ Travis ® Williamson ❑ Comal ❑ Medina ❑ 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 ❑ Mailed to TCEQ: TCEQ — Cashier Revenues Section Mail Code 214 P.O. Box 13088 Austin, TX 78711-3088 Site Location (Check All That Apply): ►1 ❑ San Antonio Regional Office ❑ Overnight Delivery to TCEQ: TCEQ - Cashier 12100 Park 35 Circle Building A, 3rd Floor Austin, TX 78753 512/239-0347 Recharge Zone ❑ Contributing Zone ❑ Transition Zone Type of Plan Size Fee Due Water Pollution Abatement Plan, Contributing Zone Plan: 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 $ 500.00 Extension of Time Each $ Signature //2 4/9-11k/Q Date If you have questi'oXs 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. 4 Texas Commission on Environmental Quality Edwards Aquifer Protection Program Application Fee Schedule 30 TAC Chapter 213 (effective 05/01/2008) Water Pollution Abatement Plans and Modifications Contributi 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 > 500 $10,000 Non-residential (Commercial, industrial, institutional, mufti -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 >_ 100 $10,000 Organized Sew .. —— — -- — -- PROJECT —7------- _.._ ...,......,.,.,.,,..•ar COST PER LINEAR FOOT MINIMUM FEE MAXIMUM FEE Sewage Collection Systems $0.50 $650 - $6,500 Underground and A PROJECT COST PER TANK OR PIPING SYSTEM MINIMUM FEE MAXIMUM FEE Underground and Aboveground Storage Tank Facility $650 $650 - $6,500 Exception Requests PROJECT FEE Exception Request $500 Extension of Time Requests PROJECT FEE Extension of Time Request $150 1 • TCEQ TCEQ Core Data Form TCEQ Use Only 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) New Permit, Registration or Authorization (Core Data Form should be submitted with the program application) 0 6. Customer Role (Proposed or Actual) - as it relates to the Regulated Entity listed on this form. Please check only one of the following: ❑ Renewal (Core Data Form should be submitted with the renewal form) ❑ Other Recharge Zone Exception Request 2. Attachments Describe Any Attachments: (ex. Title VApplication, Waste Transporter Application, etc.) ❑ New Customer ❑Change in Legal Name (Verifiable with the Texas 1Yes No Exception Request 3. Customer Reference Number (if issued) Follow this link to search 4. Regulated Entity Reference Number (if issued) CN 600413181 for CN or RN numbers in RN Central Registry** SECTION II: Customer Information 5. Effective Date for Customer Information Updates (mmlddlyyyy) 3/26/2009 6. Customer Role (Proposed or Actual) - as it relates to the Regulated Entity listed on this form. Please check only one of the following: ❑Owner ❑ Operator ❑Occupational Licensee ❑ Responsible Party I1 ❑ Owner & Operator Voluntary Cleanup Applicant ❑Other: 7. General Customer Information ❑ New Customer ❑Change in Legal Name (Verifiable with the Texas .1 Update to Customer Information ❑ Change in Regulated Entity Ownership Secretary of State) ❑ No Change** **If "No Change" and Section 1 is complete, skip to Section HI - Regulated Entity Information. 8. Type of Customer: ❑ Corporation ❑ Individual ❑ Sole Proprietorship- D.B.A City Government ❑ County Government ❑ Federal Government ❑ State Government ❑ Other Government ❑ General Partnership ❑ Limited Partnership 0 Other: 9. Customer Legal Name (If an individual, last name first: ex: Doe, John) If new Customer, enter previous Customer print below End Date: City of Round Rock 10. Address: Engineering & Development Services 2008 Enterprise Drive City Round Rock State TX ZIP 78664 ZIP + 4 11. Country Mailing Information (if outside USA) 12. E -Mail Address (if applicable) ezapata@,round-rock.tx.us 13. Telephone Number ( 512 ) 218-6605 14. Extension or Code 1 I 15. Fax Number (if applicable) ( 512 ) 218-5563 16. Federal Tax ID (9 digits) 17. TX State Franchise Tax ID (11 digits) 18. DUNS Numbertaappiicabiel 19. TX SOS Filing Number (d applicable) 20. Number of Employees ❑ 0-20 ❑ 21-100 ❑ 101-250 ❑ 251-500 ►1 501 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 permit application) ® New Regulated Entity ❑ Update to Regulated Entity Name ❑ Update to Regulated Entity Information ❑ No Change** (See below) -if "NO CHANGE" is checked and Section I is complete, skip to Section IV, Preparer Information. 23. Regulated Entity Name (name of the site where the regulated action is taking place) Little Oaks Subdivision 24. Steet Address of the Regulated Entity: (No P.O. Boxes) Project Site 300-400 Block of Brentwood Street and Briarwood Street, and 1000 Block of Glenwood Street and Tanglewood Street City Round Rock State TX ZIP 78681 ZIP + 4 97.693 Degrees 25. Mailing Address: City of Round Rock - Engineering & Development Services 2008 Enterprise Drive City Round Rock State TX ZIP 78664 ZIP + 4 33 26. E -Mail Address: ezapata@round-rock.tx.us 27. Telephone Number 28. Extension or Code 29. Fax Number (if applicable) ( 512 ) 218-6605 ■ (512 ) 218-5563 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 dgits) OSSF ■ Petroleum Storage Tank PWS 34. What is the Primary Business of this entity? (Please do not repeat the SIC or NAICS description.) City Government uestions 34 - 37 addr 35. Description to Physical Location: .. , - r---- South side of the 1000 block of West Round Rock Avenue (RM 620) 36. Nearest City County State Nearest ZIP Code Round Rock Williamson TX 78681 37. Latitude (N) In Decimal: 30.511 38. Longitude (W) In Decimal: 97.693 Degrees Minutes Seconds Degrees Minutes Seconds 30 30 39 97 41 33 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 addfional guidance. SECTION IV: Preparer Information 40. Name: Edward Zapata 41. Title: 42. Telephone Number 43. Ext./Code Project Manager 44. Fax Number 45. E -Mail Address (512 ) 218-6605 (512) 218-5563 SECTION V: Authorized Signature 46. By my signature below, I certify, to the best of my knowledge, 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 m field 39. ezapata@round-rock.tx.us (See the Core Data Form instructions for more information on who sho Company: City of Round Rock o -- -----.--- Job Title: Development Engineer Namepn Print) : Edward Zapata/ ■ Dam Safety ■ Districts i/ Edwards Aquifer IN Industrial Hazardous Waste • Municipal Solid Waste New Project ■ New Source Review - Air ■ OSSF ■ Petroleum Storage Tank PWS Sludge 1 • Stormwater • Title V - Air ■ Tires Used Oil Utilities ■ IN ■ Voluntary Cleanup • Waste Water ■ Wastewater Agriculture Water Rights Other: ■ 1 SECTION IV: Preparer Information 40. Name: Edward Zapata 41. Title: 42. Telephone Number 43. Ext./Code Project Manager 44. Fax Number 45. E -Mail Address (512 ) 218-6605 (512) 218-5563 SECTION V: Authorized Signature 46. By my signature below, I certify, to the best of my knowledge, 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 m field 39. ezapata@round-rock.tx.us (See the Core Data Form instructions for more information on who sho Company: City of Round Rock o -- -----.--- Job Title: Development Engineer Namepn Print) : Edward Zapata/ Phone: ( 512 ) 218-6605 Signature: �� - � !�% � / d �Z `I�t`' Date: / � 412/ -/.1 r Texas Commission on Environmental Quality Water Pollution Abatement Plan General Construction Notes 1. Written construction notification must be given to the appropriate TCEQ regional office no later than 48 hours prior to commencement of the regulated activity. Information must include the date on which the regulated activity will commence, the name of the approved plan for the regulated activity, and the name of the prime contractor and the name and telephone number of the contact person. 2. All contractors conducting regulated activities associated with this project must be provided with complete copies of the approved Water Pollution Abatement Plan and the TCEQ letter indicating the specific conditions of its approval. During the course of these regulated activities, the contractors are required to keep on-site copies of the approved plan and approval letter. 3. If any sensitive feature is discovered during construction, all regulated activities near the sensitive feature must be suspended immediately. The appropriate TCEQ regional office must be immediately notified of any sensitive features encountered during construction. The regulated activities near the sensitive feature may not proceed until the TCEQ has reviewed and approved the methods proposed to protect the sensitive feature and the Edwards Aquifer from any potentially adverse impacts to water quality. 4. No temporary aboveground hydrocarbon and hazardous substance storage tank system is installed within 150 feet of a domestic, industrial, irrigation, or public water supply well, or other sensitive feature. 5. Prior to commencement of construction, all temporary erosion and sedimentation (E&S) control measures must be properly selected, installed, and maintained in accordance with the manufacturers specifications and good engineering practices. Controls specified in the temporary storm water section of the approved Edwards Aquifer Protection Plan are required during construction. If inspections indicate a control has been used inappropriately, or incorrectly, the applicant must replace or modify the control for site situations. The controls must remain in place until disturbed areas are revegetated and the areas have become permanently stabilized. 6. 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). 7 Sediment must be removed from sediment traps or sedimentation ponds not later than when design capacity has been reduced by 50%. A permanent stake must be provided that can indicate when the sediment occupies 50% of the basin volume. 8. 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). 9. All spoils (excavated material) generated from the project site must be stored on-site with proper E&S controls. For storage or disposal of spoils at another site on the Edwards Aquifer Recharge Zone, the owner of the site must receive approval of a water pollution abatement plan for the placement of fill material or mass grading prior to the placement of spoils at the other site. TCEQ-0592 (Rev. 3/15/07) Page 33 of 34 ph 10. Stabilization measures shall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased, but in no case more than 14 days after the construction activity in that portion of the site has temporarily or permanently ceased. Where the initiation of stabilization measures by the 14th day after construction activity temporary or permanently cease is precluded by weather conditions, stabilization measures shall be initiated as soon as practicable. Where construction activity on a portion of the site is temporarily ceased, and earth disturbing activities will be resumed within 21 days, temporary stabilization measures do not have to be initiated on that portion of site. In areas experiencing droughts where the initiation of stabilization measures by the 14th day after construction activity has temporarily or permanently ceased is precluded by seasonal arid conditions, stabilization measures shall be initiated as soon as practicable. 11. The following records shall be maintained and made available to the TCEQ upon request: 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. 12. The holder of any approved Edward Aquifer protection plan must notify the appropriate regional office in writing and obtain approval from the executive director prior to initiating any of the following: A. any physical or operational modification of any water pollution abatement structure(s), including but not limited to ponds, dams, berms, sewage treatment plants, and diversionary structures; B. any change in the nature or character of the regulated activity from that which was originally approved or a change which would significantly impact the ability of the plan to prevent pollution of the Edwards Aquifer; C. any development of land previously identified as undeveloped in the original water pollution abatement plan. Austin Regional Office 2800 S. IH 35, Suite 100 Austin, Texas 78704-5712 Phone (512) 339-2929 Fax (512) 339-3795 THESE GENERAL CONSTRUCTION NOTES MUST BE INCLUDED ON THE CONSTRUCTION PLANS PROVIDED TO THE CONTRACTOR AND ALL SUBCONTRACTORS. TCEQ-0592 (Rev. 3/15/07) Page 34 of 34 DATE: April 1, 2009 SUBJECT: City Manager Approval — April 3, 2009 ITEM: Consider executing a Recharge Zone Exception Request with the TCEQ for the Little Oaks Subdivision Infrastructure Improvements Project. Department: Engineering and Development Services Staff Person: Danny Halden, P.E., City Engineer Justification: This Texas Commission on Environmental Quality (TCEQ) Edwards Aquifer Recharge Zone Exception Request Application is required for requesting an exception from the requirements of filing a Water Pollution Abatement Plan, performing a Geologic Assessment, and providing permanent water quality controls for the Little Oaks Subdivision Improvements project. Funding: Cost: $500.00 Source of funds: Self -Financed General Construction Outside Resources: N/A Background Information: The Engineering and Development Services Department (E&DS) was assigned the Little Oaks Subdivision Improvements project in November 2008. Although the project has not yet been fully defined to E&DS, E&DS currently understands the project to involve the reconstruction of the streets in the subdivision including curbs and sidewalk improvements, as well as the installation of storm sewer improvements, and water and wastewater improvements/adjustments as appropriate. The current budget for the entire project is approximately $1 million from the City's self -financed construction funds. E&DS has previously conducted a process for identifying an appropriate consultant to provide the necessary engineering services for the project. However, E&DS felt that it would be prudent to determine if the City will have to submit a Water Pollution Abatement Plan, Geological Assessment, and permanent water pollution control plans to TCEQ for the project. If the noted Exception Request is approved by TCEQ it will be clear to the City that the aforementioned items will not be required. if the exception request is denied, the City will have to re-evaluate the proposed project in order to determine the feasibility of proceeding with the project based on the current project budget. E&DS also felt that it would be prudent and responsible use of City funds for the City to prepare and submit the Request in lieu of retaining a consultant for this task. Public Comment: N/A UPDATED APRIL 2008