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Lakewood A-CS 920622 (2) V%Z SKEG SCHNJRB~SSM & ASSOS:AT~S June 22, 1992 Pierce-Lundsford and Associates, Inc. Attention: Mr. Jeff Hawkins, P.E. 1825 Market Center Blvd., #510 Dallas, Texas 75207 RE: Lakewood Estates Coppell, Texas Job No. 91073-0 Dear Jeff: Thank you for the time you shared with me regarding the relocation of the Coppell MUD #1 sanitary sewer relocation within the referenced project. At your request, I have spoken with the sales representative for Carlon Pipe regarding this design criteria and construction specifications. As you are aware, we will be replacing the existing 27-inch sewer line, which crosses the proposed development, with a 30-inch pipe which will be constructed within the existing and proposed street Rights-of-Way. The proposed 30- inch pipe will be checked to ensure adequate capacity. I would appreciate it if you could notify me of the design flow you are requiring for this sewer line to be designed. I have asked the Carlon representative's Engineer for a letter regarding the minimum horizontal radius with which the pipe can be constructed. He should have it to me within one week, at which time I'll copy you. As you are aware, the sewer line will be constructed within street Right-of-Way, including the existing Right-of-Way on Village Parkway. The outside Right-of-Way radius of Village Parkway is ~p~roximately 455 feet. I've been verbally informed that the minimum radius the Carlon pipe can be layed on is approximately 250.0 feet, which is less than our design minimum. After our telephone conversation this past week, it is my understanding that as long as we meet the manufacturer's design criteria regarding horizontal curvature, you would allow us to construct this line as shown on the attached exhibit. I would appreciate it very much if you would write a letter to that affect addressed to Mr. Steve Gorom with the City of Coppell. As you are aware, they prefer to have their sewer lines constructed without any horizontal curves. PAUL S '-JNZ'CKEF:I. PE DAVID M SCI-'NUDBUSCH PE. KEVIN DAY '{ENDRICK. PE CAV~) ¢ McCULLAH. R PL S. June 22, 1992 Page 2 Also, as you can see on the attached site plan, there will be lots fronting Village Parkway. Would it be possible to connect sewer service laterals into the 30-inch sewer line for these few lots? We will be submitting the Final Plat and Engineering Plans for this subdivision to the City Engineers office within the next few weeks; a set of plans will also be sent to you for your review. If you have any ~uestions, please feel free to call. Sincerely, Kevin R. Kendrick, P.E. KRK/iD Enc. CC: Ken Griffin, P.E. - City Engineer/Coppell Larry Davis - Inspection Department/Coppell Steve Gorom - Utility Department/Coppell Waymon Levell - JWL Investments Keith Jackson, P.E. - Cook, Jackson, Inc.