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Home My WebLink AboutTCEQ3 f4 3800 S.H. No. 6 South, Ste. 108G <77845> P.O. Box 9253, College Station, TX 77842 Off/Fax: (979) 764-0704 email: civil@rmengineer.com October 1, 2013 Louis Herrin III, P.E. Texas Commission of Environmental Quality Plans & Specification Review MC 148 P.O. Box 13087 Austin, TX 78711-3087 RE: Chapter 217 Summary Transmittal Letter Permittee: City of College Station Permit Number: Lick Creek WWTP: WQ0010024-006 Project Name: Creek Meadows (Lift Station Expansion) — College Station, TX County: Brazos County Grant No.: N/A Mr. Louis Heron: The purpose of this letter is to provide the TCEQ with the information necessary to comply with the requirements of Chapter 217.8(c) of the TCEQ's rules entitled, Design Criteria for Sewerage Systems. The necessary information includes: 1. Engineering Firm: RME Consulting Engineers 3800 S.H. No. 6 South, Suite 108G <77845> P.O. Box 9253 College Station, TX 77842 2. Design Engineer: Rabon A. Metcalf, P.E. Off/Fax: (979) 764-0704 3. Location: Brazos County, TX 4. Project Identifier: Creek Meadows: Lift Station Expansion 5. Operator: (`itar of Pnlb-ap Ctatinn lo�q•!3 + 3800 S.H. No. 6 South, Ste. 10BG <77845> P.O. Box 9253, College Station, TX 77842 Off/Fax: (979) 764-0704 email: civil@rmengineer.com 6. Collection System: City of College Station — Public Utilities Department 7. Plan & Specification Compliance: Design and construction of these improvements are in accordance with the Bryan/College Station Unified Water & Sewer Specifications, Design Guidelines Manual, and Chapter 217 of the TCEQ Rules & Regulations. This sanitary sewer improvement project will be constructed with the City of College Station performing a technical review. The plans and specifications which describe the project identified in this letter are in substantial compliance with all the requirements of Chapter 217. 8. Variances: Variance required due to velocity in the forcemain being less than 3.0 ft/s (two pump operations). This is an interim phase and adequate pumping velocity will be achieved in Phase Two and Phase Three (final phase). All pumping velocities illustrated in the following Table. TABLE #4 FORCE MAIN VELOCITIES Pipe Size FIRM Pump Rate Velocity Phase (in) (gpm) (fps) One 6 405 4.60 One 8 405 2.59 Two 6 505 5.74 Two 8 505 3.23 Three /S1 6 503 5.72 Three /S1 6 315 3.58 Three / S2 8 547 3.50 Three /S1 8 735 4.70 9. Project Scope: The above referenced project will install the following Creek Meadow Lift Station (CMLS) expansion improvements within the CCN of the City of College Station (CoCS): ❖ Phase One: Extension of 12" Gravity Sewer Trunk Line and 8" Force Main within the Castlegate 2 subdivision (to accommodate new pump discharge point) + impeller changes for the CMLS existing pumps. New pumping capacity increased to 405 gpm; ❖ Phase Two: Upgrade pumps and controls for the CMLS. New pumping capacity increased to 505 gpm; ❖ Phase Three: Addition of 8" forcemain (parallel to existing 6" forcemain), from CMLS to terminus of Phase One forcemain improvements + reconnection of C131-260-0471-1-07 Page 2 of 3 i s • C:asss�ii�g Br�Gisre��s f 3800 S.H. No. 6 South, Ste.10BG <77845> P.O. Box 9253, College Station, TX 77842 Off/Fax: (979) 764-0704 email: civil@rmengineer.com existing 6" force main + addition of third pump. New pumping capacity increased to 1050 gpm; If you have any questions regarding this project, please contact Mr. Rabon A. Metcalf, P.E. (Off/Fax: 979.764.0704 or rabon@rmengineer.com). Sincerely, is , of Textt 1 .. P� 1� 00 0......... . i •.. M/ 00 F;•��ENS��'- Il� S�ONAL••0--/ ' 31 Rabon A. Metcalf, P.E. No. 88583 Texas Firm Registration No. F-4695 rabon@rmengineencom xc: Erika Bridges, E.I.T. Graduate Civil Engineer City of College Station 1101 Texas Avenue South College Station, TX 77840 CD1-260-0471-L07 Page 3 of 3 11 Bryan W. Shaw, Ph.D., Chairman �PCE 0 Toby Baker, Commissioner r �, Zak Covar, Executive Director Y 1 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY Protecting. Texas by Reducing and Preventing Pollution October 16; 2013, Rabon A Metcalf PE RbtE Concilting Engineers P.O. Box 9253 College Station, Texas 77842 Re: City of College Station Creek Meadow, Lift, Station Expansion.. Permit No._ 10024-0o6 WWPR Log No.- 1013/.018 CN600732598, RN1o1668362 .Brazos County Dear' Mr. Metcalf: We have received the project summary transmittal letter dated October,1, 2013. The rules which regulate the design, installation and testing of domestic wastewater projects are found in 3o TAC, Chapter 217, of the Texas Commission on Environmental Quality (TCEQ) rules titled, Design Criteria for Wastewater Svstems. Section 217.6(d), relating to case -by -case reviews, states in part that upon submittal of a summary transmittal letter; the executive director may approve. of the project without reviewing a complete -set of plans'and specifications. Under the authority of §217.6(e) a technical reAew of complete plans. and specifications is not required..H.owever- the project proposed in the summary transmittal letter is approved for construction.. Please note, that this conditional approval does not relieve the applicant of any responsibilities to obtain all other necessary permits or authorizations, such as wastewater treatment permit or other authorization as required by Chapter. 26 of the Texas Water Code. Below are provisions of the Chapter 217 regulations, which must be met as a condition of approval. These .items are provided as a reminder. If you have already met these requirements, please disregard this additional notice. You must keep certain materials on file for the life of the project and provide them to TCEQ upon request. These materials include an engineering report, test results, a summary transmittal letter, and the final version of the project plans and specifications. These materials shall be prepared and sealed by a Professional Engineer licensed in the State of Texas and must show substantial compliance with Chapter 217. All plans and specifications must conform to any waste discharge requirements authorized in a permit by the TCEQ. Certain specific items which shall be addressed in the engineering reportare discussed in §217.6(c). Additionally, the engineering report P.O. Box 13087 • Austin, Texas 78711-3087 • 512-239-1000 tceq.texas.gov How is our customer service? tceq.texas.gov/eustomersurvey printed on recycled paper RabonAMeMalFPE Page 2 Omoben5, 2013 must!winds all accidents, Moms, equations, and caleWatlom needed to show eubarantiel compliance wind Chapter 2l7. The Items which shall br included in the summary trousmittal letter are addressed in§21yb(c)(i}(to). 1. Any deviationsfxon Chapter 217 shad be disclosed in the summary trammitml lever and the technical justifications for those deviations shall be plaided N the engineering report. My d1aAM re Tom Chapter 217 shall be based on the best professional judgement of the licrosM professional enginer s W ing the materials and the engineer's judgement Nat the design would net result in a threat to public health or the envdronment. z. My wiriness from a Chapter sly requirement disclosed in your summary maintained letter Is approved. If in the future, additional variances from lie Gapter 217 requirements are desired for the pmjecq each variance must be requested in writing by the design eaghreer. Then, the TCEQ will consider grating a written approval to the variance from the rules for the specific project and the specific cirturrie�nce. 3. Within no days of the completion ofmnatruction, an appointed engineer shall notify both the Wastewater Permits Section of the TCEQ and flee appropriate Region t)thce of me date decrepitation. Theengincer shall also pmvldewrinen certification that all construction, materials, and equipment weresubstantially he membranes with theapproved project,Ne rulesofthe TCEQ,a aUchavgeoN nfliedwiththeME,Q. MvoGfica[mns, ren5cations, and change orders must include the aimed and dates seal of a PMasioml Engineer licerwd in me State of Texas. This approval does not mean that future projev4b wW be approved widemn a complete plans and specifications review. The TCEQ will provide a mrifleadrat of intent m review whmevara preect is to undergo a complete plans and specifications radian. Pleasebereminchala§217.5 of the mks which states, "Approval scene byme executive director ... shall not relieve the sewerage system owner or the design engineer of any liabilities or responsibilities win nectar to the proper design, construction, or undimmed operation of the project in accordance with applicable commiesion rules If you have any questions or if we can be of any fuller assistance, please call me at (5t2) 239- 4552. Sincerely, 4feIZ Jn C.im Pena aP.E. Wastewater Permits Section (MC 148) Water miu Divisi on s Texas Commiaeion on Entimvmmhl Quality WH/even cc. TCEQ, Region o9 Office