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M U R R A Y C I T Y W A T E R D E P A R T M E N T Water Specifications & Requirements Contacts Danny Astill, Water Superintendent Patrick Henderson, Water Distribution Supervisor Cory Wells, Field Supervisor Phone [PHONE REDACTED] Inspections David Frandsen, Water Distribution Technician Office [PHONE REDACTED] Murray City Corporation 4646 South 500 West Murray, Utah 84123 Phone [PHONE REDACTED] • Fax [PHONE REDACTED] ---PAGE BREAK--- ---PAGE BREAK--- Table of Contents Pre 4 4 Material 5 5 5 5 5 5 Ductile Tapping 5 5 Valve 5 Fire 5 Service 5 Service 5 Corporation 5 Steel Tapping 5 5 1” Meter 6 1 ½” & 2” Meter 6 Meter Rings & 6 ¾” & 1” Meter 6 1 ½” & 2” Meter 6 Water 6 7 Ductile Iron Pipe and 7 Hydrant 7 Valve 8 Water Service 8 Meter Box 8 Disinfection & Testing 9 Murray City Water 10 Required Method of Pipe 11 Backflow Prevention 12 Hydrant Bonnet Color 12 Sectional 13 ¾” and 1” 13 Water Service 14 Service 14 Fire Hydrant with 15 Meters Larger than 16 ---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. • 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. Murray City Water Specifications & Requirements 4 ---PAGE BREAK--- Material Specifications Murray City Water Specifications & Requirements 5 ---PAGE BREAK--- Material Specifications (Continued) Murray City Water Specifications & Requirements 6 ---PAGE BREAK--- Installation 1) Ductile iron and pipe fittings. a) The contractor shall have on the job site with each pipe laying crew, all the proper tools to handle the pipe. b) All pipe and fittings shall be thoroughly cleaned before being laid and shall be kept clean until installed. c) 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. d) Lay pipe and fittings in accordance with the requirements of AWWA C600, except when noted otherwise herein. e) 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. f) Polyethylene encasement should be installed according to AWWA C105/A21.5-99 (See attached Murray City Required Method of Pipe Installation page 11). 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. g) 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. h) All fitting installations should conform to the manufacturer’s instructions. i) Install concrete thrust blocks at all fittings and other locations, as directed by Murray City Water Department. 2) Hydrant Installation (Sectional Drawing on page 15). a) 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. b) Hydrants should be set a minimum of 1 foot from the back of the curb. Murray City Water Specifications & Requirements 7 ---PAGE BREAK--- c) 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. d) During backfill pea gravel should be placed around the rear of the hydrant to a point 6 inches above the drain port. e) No hydrant shall be backfilled until directed by a Murray City Water Department inspector. 3) Valve Installation. a) All valves should be set in true vertical alignment. b) All nuts and bolts should be given a heavy coat of FM food quality grease. c) 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. d) Murray City may request that a concrete block be placed underneath each valve and wedged to support the weight and prevent slippage. e) 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. 4) Water Service Installation (Sectional Drawing on page 14). a) ¾ and 1 inch taps shall be installed using C.C. corps with flare fittings. b) 1 ½ and 2 inch taps shall be installed using I.P. corps with double strap brass saddles. c) Install corporation stops in the new water main either at the time of installation or later when the service connections are constructed. Service connections shall not be constructed until after pipe has been disinfected and tested. And for the sake of required pressure testing it is recommended that corporation stops not be installed until testing has been completed. d) Corporation stops shall be installed in the pipe at the 10 o’clock or 2 o’clock position. Stops shall be tightened only sufficiently to be watertight. e) Install type K copper tubing from the corporation stop to the water meter, or to the existing service if performing a changeover. f) 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. g) Copper must be installed from the water main to the building or residence. 5) Meter Box Instillation. a) All meters are to be installed in the park strip or within 5 feet of the property line (street side). b) 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. c) The box shall be set so that the grade of the frame and the cover matches the grade of the surrounding surface. Murray City Water Specifications & Requirements 8 ---PAGE BREAK--- Disinfection & Testing Requirements 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 constructed 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 locations. 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 environment in any way. 6) After flushing has been completed Murray City personnel will take a chlorine residual test to make sure the waterline 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 repeat 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. Murray City Water Specifications & Requirements 9 ---PAGE BREAK--- Murray City Water Fees Effective November 1, 2002 Residential & Hospital Uses Single Family $2,677.00 Multiple Family of Apts._____x $1,472.00= of Rooms_____x $669.00= Rest of Rooms_____x $937.00= Fees for Accessory other uses from + Other Uses Fee for other uses is the greater of the following: User Type* Occupant Load EDU Repair of Service Facility x $107.00= Office x $85.66= Conventional Restaurant x $53.54= Fast Food Restaurant x $34.80= Bar and Grill x $17.13= Shopping Center x $3.75= Indoor Theatre x $17.13= Church/Assembly Hall x $17.13= Schools with Cafeteria, Gym and Showers x $187.39= Laundry (per machine) x $3,212.40= TOTAL FEE FOR ALL OTHER USES *For uses not specifically listed, the Building Official shall classify & determine EDU OR Water Meter Size: 1” = $2,677.00 1 ½” = $5,355.00 2” = $8,568.00 3” = $16,064.00 4” = $26,744.00 6” = $53,548.00 8” = $85,676.00 10” = $133,869.00 Other Uses Water Impact = Murray City Water Specifications & Requirements 10 ---PAGE BREAK--- Murray City’s Required Method of Pipe Installation Murray City Water Specifications & Requirements 11 ---PAGE BREAK--- Murray City Water Specifications & Requirements 12 ---PAGE BREAK--- Sectional Drawing A Murray City Water Specifications & Requirements 13 ---PAGE BREAK--- Sectional Drawing B Murray City Water Specifications & Requirements 14 ---PAGE BREAK--- Sectional Drawing C Murray City Water Specifications & Requirements 15 ---PAGE BREAK--- Sectional Drawing D Murray City Water Specifications & Requirements 16