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CN-2010-00069 (4).tif Allen Schoemaker From: Chris VNlet [cwi n] Sent: Tuaoday, September 13, 2011 1U:44AK8 To: Allen Schoemaker Cu: JeredK8orrio Subject: RE: 405B-OD Blair, NE- Existing 48" Public Storm Sewer - Internal Pipe Joint Seal Info Al, Thanks for your review and comments. |n answer 10 your quesbons- 1. Yes, Olsson will be present during installation to verify & observe that it is done properly. l Yes, Olsson and Walmart'sThird-Party Construcion Testing Lab (Terracon) will be present during the seal air tests to document passing test results. We will provide the field installation and testing documentation to you as requested. I will notify Walmart and their Contractor this week of the approval to proceed with this solution and I will copy you on the change directive which I will provide to Walmart with installation directions and documentation requirements. After costing isapproved byVVa|mart it will be scheduled by the Contractor and | can let you know when it will he completed. Let noe know if you have any other questions orcomments. Thanks Al. Chris S.VViOeL PE | Land Development | 0ssonAsaodetas 2111 South 67th Street, Suite 200 | Omaha, NE 68106 | D|R402.938.24O8 | WXO N� ammu�o*�cN 'mw�*mn o|�as��n��rth��O��nDnMe�i��r�pMnUn0th��m�ii From: Allen Schoenlaker[nlai|tomro@cib|air.ne.uy] Sent: Monday, September 12L2O11 1 PM To: ChduVViUet Subject: RE: 4658-00 Blair, NE - Existing 48" Public Storm Sewer - Interna| Pipe Joint Seal Info Chris Sorry for the delay innny response but just buried onmyend. In my review of the materials you sent to me to correct the storm sewer problems seem like they will work if installed correctly and tested. A couple of questions | have regarding the installation and testing though. 1. First will Olsson have staff on site to verify the installation is per the manufactures instructions? |nnoy review of the information you provided me [ believe there needs to be field representative on site from O|ssonto help in the understanding of the installation process and also to verify the installation is being done correctly with documentation of pictures. I 2. Secondly Olsson most deffinutley needs to be on site during the air tests of the seal per the instructions for the installation. This will be the only way to verify the seal is installed and working properly. i I would then request documentation of the field information to my office and I am sure Wal Mart's offices as well to verify everything is installed as required by the manufacturer. Let me know if there are any questions. Al Schoemaker Director of Public Works City of Blair 402 - 426 -4191 ARS@ci.blair.ne.us From: Chris Willet [ mailto :cwillet @oaconsulting.com] Sent: Tuesday, September 06, 20119:26 AM To: Allen Schoemaker Subject: RE: 4658 -00 Blair, NE - Existing 48" Public Storm Sewer - Internal Pipe Joint Seal Info I Good Morning Al, Hope you had a good holiday weekend. Just following up on my email from last week... below, with attachments. Please let me know if you'd like further information or if you have any questions or if this meets with your approval. Thanks for your time... i Chris S. Willet, PE J Land Development I Olsson Associates 2111 South 67th Street, Suite 200 1 Omaha, NE 68106 DIR 402.538.2408 I cwillet@oaconsultirr . com i 4 U\OLSSON Please consider the environment before printing this e-mail. From: Chris Willet , I Sent: Tuesday, August 30, 20116:02 PM To: ars @ci.blair.ne.us Cc: Jered Morris Subject: 4658 -00 Blair, NE - Existing 48" Public Storm Sewer - Internal Pipe Joint Seal Info Al, We did a second TV inspection of the existing public 48" Storm Sewer Pipe crossing the Walmart site on 8/29/11. With this inspection, we were able to identify the limits of the sag in the pipe (approx. 80 LF) and confirm that all the pipe joints in this area are in good condition. Standing water in the sag section was estimated at 2 -3" deep. Based on this information and per our phone call today, we are proposing to leave the pipe in place and install internal pipe joint seals I 2 i at every joint throughout the sag plus at one joint either side of the limits of sag (10 joints total), to make the joints watertight and protect from exfiltration of storm water. Walmart has reviewed this solution and finds it acceptable. Please see the attached information for your review: • Cretex Hydra -Tite Pipe Joint Seal: Cut Sheet and Installation Procedure • Grading Plan: Noting the sag area where the internal pipe joint seals are proposed. i i Please review and please advise if this is acceptable to you. With approval from you, I will provide direction to the Contractor to proceed immediately at Walmart's cost. Let me know if you'd like any further information. Thanks, Chris S. Willet, PE I Land Development I Olsson Associates 2111 South 67th Street, Suite 200 I Omaha, NE 68106 I DIR 402.938.2408 I cwillet @oaconsultin .com ,a ry „ti Please consider the environment before printing this e-mail. i i i 3 i i c * Cre t ex Specialty Products i HydraTiteTM Internal Joint Seal system is a mechanical, trenchless remediatin for repair of pipe joints.The HydraTiteTM � system consists of a proprietary rubber seal which spans the joint and is held place by stainless steel retaining bands in y either side of the joint. These retaining bands are expanded and locked in place using a wedge lock design which form an i j air tight clamp around the joint eliminating all infiltration and exfiltration. Each HydraTiteTM seal is designed and custom ? made for each application to ensure complete compliance with project specifications. RUBBER -The Seal is supplied in either EPDM or Nitrile. i The EDPM is used in applications for potable water, waste x water, and seal /brackish water, The Nitrile seal provides r superior resistance to gas, oil, and petroleum based reagents making it ideal for natural gas applications. The patented sleeving design allows for the interlocking of multiple seals. The design provides a means by which to line long lengths of pipe to remediate axial as well as circumferential defects.The HydraTiteTM System can accommodate pipe diameters from 18 to 216 inches, '' ST RETAINING AN -The retaining bands are manufactured to project specifications using either carbon steel, 304 stainless steel, 316L stainless steel or AL- Custom mechanical remediation with NO ` 6XN. The retaining bands can be supplied as one piece or EXCAVATION REQUIRED multiple pieces to accommodate entry restrictions, Systems can also be designed that incorporated extra retaining bands to provide extra support. Rapid installation and immediate return -to- service BAC KING T ®A stainless steel backing plate can be incorporated behind the seal to provide support when spanning voids in the pipe wall. This design is utilized in 9 Seal flexibility accommodates shifting, vibration, the remediation of expansion joints, sealing off abandoned ground settling, and thermal expansion/contraction laterals, and the repair of deteriorated joints. Low profile ensures minimal flow loss mom 0 lyd ttj i i I h N N EERE PRODUCTS ecretex w Specialty Products Ulu I te n IL AV d Internal Seal Installation Procedure OPSM01 i w � I y � I i i HydraTite Internal Seal Updated March 2009 Installation Procedure OPS -1 DO NOT COPY — DO NOT DUPLICATE I ' NEaTeh EREEO PRODUCTS Specialty Products ! 3.11 Continuous forced air ventilation has been established and is sufficient to maintain the confined space safe for entry. 3.12 Training has been completed for personnel involved in installation activities. I 4.0 PRECAUTIONS 4.1 If any unanticipated or unexpected alarm, noise, vibration, odor or excess leakage is observed, personnel shall immediately exit and remain outside the confined space until the condition is identified and rectified. 4.2 Preparation should be made for emergency rescue situations. In the event of an emergency, under no circumstance should the attendant enter the confined space until help has arrived, and then only with the proper rescue equipment. Attendants participating in the rescue effort must have received specialized training in confined space rescue techniques. Rescues are to be accomplished using emergency rescue carts or trolleys with a lifeline attached. At no time should the hole man (safety person) exert any pulling force on the anatomy of the person being rescued. The main must always be cleaned to the point that transportation carts (emergency and work carts) can ride on their wheels without encumbrance due to obstructions or main debris. 5.0 PROCEDURE 5.1 Verify that all prerequisites are completed and precautions noted. 5.2 Perform an inspection of pipe interior. Review all seal installation locations, paying particular attention to those at elbows, to verify that the piping /fitting geometry will allow the installation of the HydraTite Seal System. 5.3 Remove all dirt, scale, and other debris from the pipe walls in areas where the seal is to be installed. These cleaning operations shall be accomplished by hand brushing and scraping, pneumatic wire brushes, and/or oil -free air jet. i 5.4 Marl-, the location of one edge of the lip seal on the pipe ID to clearly define the seal installation position(s). 5.5 All high/low surface imperfections (i.e. dirt, scale, and other debris) running axially through or part way through the sealing surface must be removed prior to installation of the seal. Any joint gaps or deep imperfections must be properly filled with an approved joint filling material and rendered smooth. 5.6 Load HydraTite Seal System rubber seal, associated bands and bolts into the piping. 5.7 Pre - assemble multi -piece bands and locate in piping to facilitate installation. 5.8 Lubricate (EaseOnTM Pipe Lubricant, MSDS attached) the rubber seal on the outside to facilitate location and seating of bands. This use of lubricant is to ensure even distribution of j i i HydraTite Internal Seal Updated March 2009 Installation Procedure OPS -1 DO NOT COPY — DO NOT DUPLICATE i y Tech etex entc3IlvEO PaoouCrs Specialty Products 5.22.1 Pressurize to 5 PSIG through the seal test valve. Apply an approved soap test solution to the seal ends and inspect for leakage. 5.22.2 If the pressure test indicated leakage, determine cause and repeat air test. NOTE: A pressure test will be negligible if there is a leak path within the pipe area (hole in the pipe) or joint being sealed. It is recommended to maintain a supply of 5 PSIG to the seal and apply an approved soap test solution to the seal ends and inspect for leakage around the end of the seal. 5.23 Depressurize seal and isolate test port. Using an approved thread sealing compound, install the threaded countersunk hex head completion plug. Remove all installation hardware, test j band, and pressure gauges from the pipe. 6.0 RESPONSIBILITIES 6.1 The Director of Operations is responsible to ensure that personnel have the experience and qualifications necessary to perform the tasks assigned. 6.2 Only HydraTech trained personnel are approved to install seals. 6.3 Training 6.3.1 It should be noted that HydraTech utilizes certified contractors to install the HydraTite Seal System. HydraTech can also provide training services for other installation contractors or client employees at the job site or at office locations in order to install the seals. 6.3.2 This training performed is valid for one year and can not be assigned to other contractor personnel. 6.3.3 At the completion of training the authorized HydraTite training supervisor or his designee may issue to the contractor a certificate of training completed for each individual. I 6.3.4 One copy of the certificate will be maintained by HydraTech Engineered Products, LLC. I i HydraTite Internal Seal Updated March 2009 Installation Procedure OPS -1 DO NOT COPY — DO NOT DUPLICATE i 1 i I Tech ioCretex ENGIINEEREOPRODU= Specialty Products Attachment B _HydraTite Equipment Checklist ❑ First aid Kit ❑ Fire extinguisher ❑ SCBA ❑ Hard Hats ❑ Hearing Protection ❑ Safety Glasses ❑ Gloves ❑ Air Monitor ❑ Safety Shirts & Vests ❑ Eye Wash ❑ Dust/Nuisance Masks ❑ Traffic Cones ❑ Air Mover ❑ Ladders ❑ Intruder & Winches ❑ Rope Wheel ❑ Safety IIarnesses ❑ Rubber Boots ❑ Insect Spray ❑ Respirators ❑ Drinking Water & Cooler ❑ Lights & Charger ❑ Trash Containers & Bags ❑ Knifes — Utility & Hawkbill ❑ Hydraulic Expander, Pump & Fluid ❑ Bug Sprayer ❑ Hack Saw ❑ Circumference Tape ❑ Wrenches (Adjustable, Pipe & Combo) ❑ Socket Wrenches ❑ Welder /Generator ❑ Tape Measures (16' & 25') ❑ Screwdrivers (Phillips & Straight) ❑ Hole Punches ❑ 6" Scrapers ❑ Coal Shovels ❑ Vise Grips ❑ Wire Brushes ❑ Slag Hammer ❑ Metal Files ❑ Dead Blow Hammer ❑ Extension Cords & Pigtails ❑ Grinders and Sanding Disks ❑ Chop Saw & Blades ❑ Water Pumps ❑ Drill Motor & Bits ❑ Air Compressor ❑ Welder & Weld Rod ❑ Zip Gun & Bits ❑ Hose Rubbers ❑ Marking Pens ❑ Ease -On Pipe Lube ❑ Duct Tape ❑ Non -Toxic Thread Dope ❑ Rags ❑ WD -40 ❑ 5 Gallon Mixing Buckets ❑ Epoxy ❑ Punch Lock Clamps ❑ Mixing Paddles ❑ Strap Tape ❑ Paint Brushes ❑ Marking Chalk ❑ Wisk Brooms ❑ Hose Clips ❑ Mechanics Wire ❑ Whip Hose ❑ Test Hose & Brass Test Fitting ❑ Blower Hose ❑ Quick Connects ❑ Air Regulators ❑ Hydraulic Cement ❑ Ball Valve ❑ Liquid Gages ❑ Welding Hood & Gloves ❑ Wedge Extractor & Wedge Tray ❑ Allen Wrench Kit ❑ Worm Clamps ❑ Hammer -4 lb. ❑ Workman & Cleaning Carts ❑ Wedges & Shims ❑ Band Bolts HydraTite Internal Seal Updated March 2009 Installation Procedure OPS -1 DO NOT COPY — DO NOT DUPLICATE i I