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Murray City Corporation 4646 South 500 West Murray, Utah 84123 Phone [PHONE REDACTED] Fax [PHONE REDACTED] Danny Astill, Water Superintendent David Frandsen, Water Distribution Supervisor Cory Wells, Field Supervisor Phone [PHONE REDACTED] Amended April 2015 Murray City Water Division Water Specifications & Requirements ---PAGE BREAK--- Table of Contents Pre 2 2 Material 3 3 3 3 3 3 Ductile Tapping 3 3 Valve 3 Valve Box 3 Mechanical Joint Restraint 3 Service 3 Corporation 3 Service 3 3 1” Meter 4 1 ½” & 2” Meter 4 Meter Rings & 4 Larger Meter 4 Fire 4 ¾” & 1” Meter 4 1 ½” & 2” Meter 4 Water Steel Tapping 4 5 Ductile Iron Pipe and 5 Required Method of Pipe Installation………………………………………….6 Hydrant 7 Hydrant Bonnet Color 7 Hydrant Concrete Hydrant Sectional 8 Valve 9 Water Service 9 Water Service Taps 10 Point of Use 10 Meter Box 11 3/4” & 1” Meter Box 12 1 1/2” & 2” Meter 13 Meter Box in Concrete Installation……………………………………………. 13 Meters Larger than 2” 14 Trench Backfill 15 Disinfection & Testing 16 Murray City Water 17 Backflow Prevention 17 Fire Flow Testing 18 ---PAGE BREAK--- Pre Construction Prior to installation all extensions, or connections to water mains must be approved in advance by the public services director or designee in accordance with Murray City Code 13.08.190 (Ord. 02-35 § Water connection impact fees must be paid prior to new development which includes remodeling, building enlargement, or any other construction or improvement which will place an increased burden on the city water system in accordance with Murray City Code 13.08.050 (Ord. 02-35 § Obtain all street cut permits and any other permits applicable to the work being preformed. On mainline pipe jobs a pre construction meeting should be set up by the developer. The meeting should include the developer, contractors and Murray City personnel who will be involved in the project. This meeting is generally beneficial for all parties involved. Construction Murray City will be given advance notification of when work is to begin. It is unlawful for any person, without authority, to open any valve or other fixture attached to the city waterworks system in accordance with Murray City Code 13.08.040 (Ord. 02-35 § Murray City personnel will inspect all work being performed and nothing shall be buried until approved by an authorized inspector. Murray City maps all new construction with a global positioning system (GPS) and if water features are buried before they are documented or inspected you will be asked to uncover them. Murray personnel may also require extended range ball markers be installed to help with future locating. These ball markers will be provided by Murray City Water. All testing shall be overseen by Murray City personnel, no waterline will be accepted into the system until all tests have been completed. A complete disinfection and testing requirements checklist has been provided in this manual. Any time water will be shut off, it is the contractors job to give a minimum of 24 hours advanced notification to all those who will be affected. This notification should include: Contractors name and telephone number, the date the water will be shut off, an approximate time that the water will be shut off and turned back on. Water Specifications & Requirements 2 Murray City Water ---PAGE BREAK--- Material Specifications Special thickness Class 52 Ductile Iron Pipe (ANSI A21.4/AWWA C151) Pipe Wrap Tape Fittings Grease Ductile Tapping Sleeves Valves Saddles Corporation Stops Service Fittings Mechanical Joint Restraint Followers Valve Box Aligner Valve Boxes Polyethylene Encasement (ANSI/AWWA C105/A21.5-99) 2” Wide 20 Mill Tape No other type of tape will be allowed. Ductile Iron Cement Lining and Aspaltic seal coat in accordance with (ANSI/AWWA C104/A21.4) FM Food Quality Grease Applied to all nuts and bolts It is Murray City policy to use ductile tapping sleeves on ductile iron mains. However, because of our larger water mains an exception may be considered if it can be demonstrated that efforts have been made, or the timing of a project is critical to keep a roadway open or project on schedule. Specific details will be reviewed on a case by case basis. Gate: Mueller type resilient seat valves or the use of a suitable equivalent with approval by Murray City Water Department prior to installation. Double Strap Brass Saddles on 1 1/2” and 2” connections. AWWA tapered C.C. threads with flare fittings I.P. threads used with double strap saddles on 1 1/2” and 2” Flare Fittings Compression fittings are not allowed under any circumstance. Type K, soft temper. Copper tubing. Minimum service line for new installations should be 1 inch. Murray City Water Department may require larger line sizes to meet the minimum flow requirements of the user. Posi-Cap valve box aligners are furnished by Murray City but installed by contractor Sliding Adjustable type, cast iron, with cast iron cover with the word “WATER” cast into it. Service Line Megalug, Stargrip or the use of a suitable equivalent with the approval by Murray City Water Department prior to installation. Water Specifications & Requirements 3 Murray City Water ---PAGE BREAK--- Material Specifications (Continued) Water Meters Murray City provides water meters based on planned flow (Badger Meters). Note: Murray does not stock larger meters 3 inches and up, if your job requires a larger 1 inch meters must have an 18” copper setter with a ball valve (No Backflow). 1” Meter Setters 1 1/2” & 2” Meter Setters Meter Rings & Lids 1 1/2” & 2” Meter Box 3/4” & 1” Meter Box 1 1/2” and 2” meters must have an 18” copper setter. Double valve, inlet and outlet with lockable by- pass valve (no backflow). Cast iron that fit the appropriate box with holes for the AMR sys- tems. 4X4 Dura Crete box without a floor or a pre approved suitable equiva- lent. Plastic 20X30 Midstates, MS203B or Carson Industries B Series 20X30 H. or Concrete 18X30 Steel Tapping Sleeves PowerSeal stainless steel sleeve (model 3490). Wrapped with Canusa Shrink Wrap or a suitable equivalent. Steel tapping sleeves are only to be used on steel waterlines unless approved by Murray City. Only on approval D & L Supply B-5018 Larger Meter Lids Mueller A-423 or Super Centurion. Fire Hydrants Water Specifications & Requirements 4 Murray City Water Valve Box Aligners Murray City provides valve box aligners. Note: Aligners are to be installed by contractor Electronic Marker Balls Murray City provides and installs marker balls. Note: Contractor assistance may be requested during installation. ---PAGE BREAK--- Installation 1) The contractor shall have on the job site with each pipe laying crew, all the proper tools to handle the pipe. 2) All pipe and fittings shall be thoroughly cleaned before being laid and shall be kept clean until installed. 3) Pipe should be laid in the dry trench conditions. At no time should water in the trench be allowed to flow into the pipe. At any time that work is not in progress, or the trench is unattended, the end of the pipe shall be suitably closed to prevent the entry of animals, earth, water, etc. using a water tight expandable plug. The expandable plug will always be kept at a close proximity to the end of the pipe incase of an emergency. 4) Lay pipe and fittings in accordance with the requirements of AWWA C600, except when noted otherwise herein. 5) Murray City has a minimum depth requirement of 36 inches and prefers pipe to be laid at a depth of 48 inches. Once the excavation has been completed to the proper depth the pipe bed should be prepared as follows. Pipe that is to be laid on undisturbed sub grade should be manually excavated around the pipe bells assuring a uniform surface along the pipe barrel. This practice will also assist in applying required tape around the bell. Murray City can require that pipe be laid on a bedding material if the native soil is not in ideal condition. The bedding material will be sand with no rocks that could puncture the polyethylene wrap. 6) Polyethylene encasement should be installed according to AWWA C105/A21.5-99 (See attached Murray City Required Method of Pipe Installation page Care should be taken to not puncture or tear the wrap. All small rips, tears, and other damage should be repaired using 2” wide 20 mill tape. 7) Jointing shall conform to manufacturer’s instructions and appropriate AWWA standards. Apply lubricant to the exposed surface of the gasket and plain end of the pipe in accordance with the pipe manufacturer’s recommendations. Lubricant is furnished in sterile containers, and every effort should be made to protect against contamination. 8) Murray City requires the use of Mechanical Joint Restraint followers (Megalug, Stargrip or the use of a suitable equivalent with the approval of the Murray City Water Department prior to construction). 9) All fitting installations should conform to the manufacturer’s instructions. 10) Install concrete thrust blocks at all fittings and other locations, as directed by Murray City Water Department. 6 1/2 Bag Class 4000 is the minimum requirement for all concrete. Ductile Iron & Pipe Fittings Water Specifications & Requirements 5 Murray City Water ---PAGE BREAK--- Murray City’s Required Method of Pipe Installation STEP 1 Cut a section of polyethylene tube approximately two feet longer than the pipe section. Remove all lumps of clay mud, cinders or other material that might have accumulated on the pipe surface during storage. Slip the poly tube around the pipe, starting at the spigot end. Bunch the tube accordion-fashion on the end of the pipe. Pull back the overhanging end of the tube until it clears STEP 4 Make the overlap of the polyethylene tube by pulling back the bunched polyethylene from the preceding length of pipe and securing it in place. Murray City requires that polyethylene be secured in place using 2” 20 mill tape. STEP 5 Overlap the secured tube end with the tube end of the new pipe section. Secure the new tube end in place using 2” 20 mill tape. STEP 6 Take up the slack in the tube along the barrel of the pipe to make a snug, but not tight, fit. Fold excess polyethylene back over the top of the pipe. STEP 7 Secure the folds every three feet along the pipe barrel using 2” 20 mill tape. STEP 8 Repair all small rips, tears, or other tube damage with 2” 20 mill tape. If the polyethylene is badly damaged, repair the damaged area with a sheet of polyethylene and seal the edges of the repair with 2” 20 mill tape. STEP 9 Carefully backfill the pipe according to the AWWA C600 standard for backfill procedure. To prevent damage during backfilling, allow adequate slack in the tube at the joint. STEP 2 Dig a shallow bell hole in the trench bottom at the joint location to facilitate installation of polyethylene tube. Lower the pipe into the trench and make up the pipe joint with the preceding section of pipe. STEP 3 Move the cable to the bell end of the pipe and lift the pipe to provide enough clearance to easily slide the tube. Spread the tube over the entire barrel of the pipe. Make sure that no dirt or other bedding material becomes trapped between the wrap and the pipe. Water Specifications & Requirements 6 Murray City Water ---PAGE BREAK--- Hydrant Installation (Sectional Drawing on Page 8) 1. Hydrants shall be set at the location shown and bedded on a firm foundation. Each hydrant shall be set in true vertical alignment. All nuts and bolts below the finished grade should be given a heavy coat of FM food quality grease. Every thing below the finished grade should be wrapped completely with polyethylene and tapping appropriately. Polyethylene should be cut at the bottom to allow drainage from the drain ports. 2. Hydrants should be set a minimum of 1 foot from the back of the curb. 3. Concrete thrust blocks shall be placed between the rear of the hydrant inlet and undisturbed soil at the end of the trench. Special care shall be taken so that concrete does not plug the drain port. 6 1/2 Bag Class 4000 is the minimum requirement for concrete. 4. When there is a bell between an auxiliary valve and a hydrant there must be a locking gasket and blocking installed. Anytime the distance between the auxiliary valve and hydrant is under 17’ a solid length of pipe must be installed. 5. During backfill pea gravel should be placed around the rear of the hydrant to a point 12 inches above the drain port. 6. No hydrant shall be backfilled until directed by a Murray City Water Division inspector. 7. All hydrant bonnets must be painted by the contractor to coincide with the size of the water main serving the hydrant, specifically the larger main in the street not the 6” auxiliary line between the main and the hydrant (See color code below). Must be painted with Sherwin Williams B-54Z Industrial Enamel or equal. 8. Concrete pads must be installed around the completed hydrant, in an open area they are to be 4’ X 4’ and in a park strip area it should be 4’ wide and run from curb to sidewalk approximately 3 1/2’ to 5 1/2’ (See drawing below). The concrete should be 6 1/2 Bag Class 4000, concrete will be 5” thick on a curb to sidewalk application and 8” thick in a open area installation. All pads should be installed with #4 rebar. If the bolts on the hydrant are touching or are in the concrete a hydrant riser must be installed. Installation (Continued) Hydrant Bonnet Color Code Fire hydrants shall be color coded to coincide with the size of the water main serving the hydrant. 1. 4” and smaller main...... 2. 6” 3. 8” and 10” 4. 12” or larger White Red Orange Green Hydrant Concrete Pads 4’ 4’ Open Area 8” Thick #4 Rebar Run from curb to sidewalk typically 3 1/2’ to 5 1/2’ 4’ Curb to Sidewalk 5” Thick #4 Rebar Water Specifications & Requirements 7 Murray City Water ---PAGE BREAK--- Hydrant Sectional Drawing Water Specifications & Requirements 8 Murray City Water ROCK 8” ABOVE BOLTS ---PAGE BREAK--- Installation (Continued) 1. All valves should be set in true vertical alignment. 2. All nuts and bolts should be given a heavy coat of FM food quality grease. 3. Valves should be wrapped with polyethylene with only the operating nut exposed. The valve should be tapped in a way to not infringe on the operation of the valve. 4. Murray City may request that a concrete block be placed underneath each valve and wedged to support the weight and prevent slippage. 5. Valve boxes of the sliding adjustable type must be centered over the nut or the valve so that a valve key can access the nut and open and close it smoothly. The contractor is also responsible to make sure all valve boxes are clear of dirt and debris and ready for operation. 6. Posi-cap valve box aligners will be provided by Murray City and installed by the contractor on all valves. Valve Installation Water Service Installation (Sectional Drawing on Page 10) 1. ¾ and 1 inch taps shall be installed using C.C. corps with flare fittings. Corporation stops shall be installed on 3/4 and 1 inch taps at the 2 o’clock or 10 o’clock position. These are direct taps without the use of saddles. 2. 1 ½ and 2 inch taps shall be installed using I.P. corps with double strap brass saddles. Corporation stops on 1 1/2 inch and above should be installed at the 3 o’clock or 9 o’clock position. 3. All corporation stops should be rotated so that the valve actuator runs parallel with the pipe or in other words the valve actuator is not on the top or bottom but placed on the side (see photo below). 4. Do not Install corporation stops in the new water main at the time of pipe installation they should be installed later when the service connections are constructed. Service connections shall not be constructed until after pipe has been disinfected and tested. 5. Corporation stops shall be tightened only sufficiently to be watertight. 6. Install type K copper tubing from the corporation stop to the water meter, or to the existing service if performing a changeover. 7. Care should be exercised in the placing and laying of copper tubing to be sure that the pipe does not have any kinks and is not installed near any sharp stones that may cause damage to the copper tubing. 8. Copper must also be installed from the water main to the (Point of Use) building or residence (See sectional on page 11). 10 o’clock 2 o’clock 9 o’clock 3 o’clock Top View of Corporation Stop Installation Valve Actuator Water Specifications & Requirements 9 Murray City Water ---PAGE BREAK--- Water Service Taps Existing Service Connection New Service Installation (Continued) Water Specifications & Requirements 10 Murray City Water TOP VIEW OF CORRECT CORPORATION STOP INSTALLATION ---PAGE BREAK--- Point of Use Installation (Continued) Water Specifications & Requirements 11 Murray City Water TYPE OF BACKFLOW DEVICE MUST BE APPROVED BEFORE INSTALLATION BY MURRAY CITY WATER DEPARTMENT ---PAGE BREAK--- 1. All meters are to be installed in the park strip or within 5 feet of the property line (street side). 2. Do not install meter boxes under driveway approaches, sidewalks, in parking lots, or under curb and gutter. Box should be placed in a landscaped area. 3. The box shall be set so that the grade of the frame and the cover matches the grade of the surrounding surface. 4. Concrete meter boxes with larger lids may be deemed necessary by Murray City personnel in a situation where the meter must by placed in an asphalt, concrete or other high traffic area. Meter Box Installation Installation (Continued) 3/4” & 1” Meter Water Specifications & Requirements 12 Murray City Water ---PAGE BREAK--- 1 1/2” & 2” Meter Installation (Continued) Water Specifications & Requirements 13 Murray City Water Meter Box in Concrete Installation ---PAGE BREAK--- Meters Larger than 2” Installation (Continued) Water Specifications & Requirements 14 Murray City Water ---PAGE BREAK--- Backfill & Compaction Requirements Backfill/Backflow Prevention Water Specifications & Requirements 15 Murray City Water ---PAGE BREAK--- Murray City Corporation recognizes the American Water Works Association (AWWA) standard C651-92 is widely accepted and recognized within the water industry as the guide to use for main water line disinfection. However, Murray City has found additional safety measures must be observed to protect the water quality within newly con- structed water mains. For the purpose of main water line disinfection, we recommend using one of the methods described in the AWWA standard C651-92. For ease and safety purposes we recommend using a granular type of hypochlorite. However, any of the disinfection methods given would be adequate. Once a section of pipe has been completed and is ready to be filled the testing process can begin. At this point the following steps should be taken. 1. Murray City personnel will slowly fill the section of pipe that is to be tested. Contractors are not to operate valves at any time. 2. Once the line has been filled Murray City personnel will take a chlorine residual sample at two different loca- tions. There must be a free chlorine residual greater that 100mg/L to proceed to step 3. If the chlorine residual is less than 100mg/L then steps must be taken to chlorinate the line again before testing can proceed. 3. Now the line must remain static for a minimum of 24 hours to allow the disinfection process to take place. 4. After the minimum 24 hour period Murray City personnel will again take two chlorine residual samples to verify that the free chlorine residual is greater than 100mg/L. If the residual is still greater than 100mg/L then testing can proceed. 5. Now the main can be flushed. While disposing of chlorinated water care must be taken not to pollute the envi- ronment in any way. 6. After flushing has been completed Murray City personnel will take a chlorine residual test to make sure the wa- terline is free from chlorine. If chlorine is present more flushing will be needed. Once the line is chlorine free testing can proceed. 7. Murray City personnel can now take the first bacteriological samples. One sample is required for every 800 feet of being put into service. Sample results take a minimum of 24 hours to receive and sometimes longer based on when the sample is received by the lab. If the sample results are negative you may proceed to step 8, if the sample results are positive then additional flushing will be required along with repeat samples, all re- peat samples will be at the expense of the contractor. 8. The pressure test requires that a pressure of 200 psi be maintained for two hours. Special care must be taken during the pressure test not to contaminate the water in the main. All components of the pressure test must be supplied by the contractor. 9. A second set of bacteriological samples can now be taken from the previous sample points used in step 7. If the sample results return negative the water main will be accepted and put into service. Positive results will result in further testing at the contractors’ expense as well as a charges for the water used. Also the contractor will be required to pump in chlorine bleach (T-Chlor, Sodium Hypochlorite) to disinfect the line also at their expense. Disinfection & Testing Requirements Water Specifications & Requirements 16 Murray City Water ---PAGE BREAK--- The Water Impact fee shall be based on the Water Meter Size serving the property as follows: Murray City Water Impact Fees Effective January 1, 2013 Water Meter Size Impact Fee 1” $2,677.00 1 1/2” $5,353.00 2” $8,565.00 3” $18,736.00 4” $32,120.00 6” $66,916.00 8” $96,359.00 10” $155,245.00 12” $231,262.00 Backflow Prevention Requirements Whenever Murray Water Department deems a service connection’s water usage contributes a sufficient hazard to the water supply, an approved backflow prevention assembly shall be installed on the service line of the identified consumer’s water system, at or near the property line, or immediately inside the building being served; but, in all cases, before the first branch line leading off the service line. Backflow device must be tested within ten days of being placed in service. Device must be tested annually by a Certified Backflow Tester with results sent to Steve Davis through standard mail, email or fax. Mail 4646 South 500 West Murray, Utah 84123-3615 Email [EMAIL REDACTED] Fax [PHONE REDACTED] Murray City Water offers hydrant meter rentals and water use to homes during construction to sign up for either of these programs please contact us at [PHONE REDACTED] Water Specifications & Requirements 17 Murray City Water ---PAGE BREAK--- Fire Flow Testing Fire flow testing is the determination of actual flow conditions within a water system. Murray City does not perform the actual fire flow test but requires Murray City personnel be present during the testing and requires that all results be submitted to Murray City Fire flow test should be arranged in advance with Murray City personnel. Murray personnel will open and close all hydrants slowly and fully to prevent a pressure surge. It is unlawful for anyone besides Murray personnel to operate a fire hydrant. Special care should be taken to make sure that water from the flow test does not impact traffic or do damage to property. Murray City reserves the right to stop the testing process at anytime if personnel believes the test is creating a negative environment in any way. All results of the fire flow test must be submitted to Murray Water Department and Murray City Fire Department through standard mail, email or fax. Water Specifications & Requirements 18 Murray City Water Murray Water Department Mail c/o David Frandsen 4646 South 500 West Murray, Utah 84123-3615 Email [EMAIL REDACTED] Fax [PHONE REDACTED] Murray Fire Department Mail c/o Phil Roberts 40 East 4800 South Murray, Utah 84123-3615 Email [EMAIL REDACTED] Fax [PHONE REDACTED] Murray City Water Division reserves the right to change these specifications at any time when deemed appropriate. ---PAGE BREAK--- Murray City Water Department Facebook.com/MurrayCityWaterDepartment Twitter.com/MurrayCityWater