DAR File No. 38536

Environmental Quality, Drinking Water

Rule R309-550

Facility Design and Operation: Transmission and Distribution Pipelines

Notice of Proposed Rule

(Amendment)

DAR File No.: 38536
Filed: 05/15/2014 04:26:21 PM

RULE ANALYSIS

Purpose of the rule or reason for the change:

The Engineering Section of the Division of Drinking Water was tasked to review the Drinking Water R309-500 series rules for revisions, clarifications, corrections, updates, etc.

Summary of the rule or change:

It has been several years since Rule R309-550 was reviewed and revised as a whole. This rule contains several outdated and incorrect references to the AWWA standards. The proposed modifications to Rule R309-550 include the following: 1) add the requirement for pressure reducing valves (PRV) stations on new water distribution lines when the water pressure exceeds 150 psi; 2) modify the Hydraulic Analysis section to reflect hydraulic modeling rule requirements when applicable; 3) clarify the minimum pipeline size by use; 4) modify the rule language pertaining to fire protection and fire hydrants to reflect the requirements of the State Fire Marshall; 5) add the requirement for special design on community systems in areas of geologic hazard; 6) revise to include the new federal requirement for "lead-free" materials; 7) clarify the chamber drainage requirements; 8) add a new section on control valve stations including PRVs, backflow devices, and meters; 9) revise the minimum separation standards and add specific requirements for allowing sewer and water lines to be closer together under certain circumstances; 10) add installation standards for HDPE and steel pipes; 11) clarify the pipe design criteria for surface water crossings; 12) eliminate the redundant section on exceptions; 13) make miscellaneous changes to correct formatting, and grammar and to make the intent of the rule more easily understood; and 14) correct numerous outdated and incorrect references.

State statutory or constitutional authorization for this rule:

• Subsection 19-4-104(1)(a)(ii)

Anticipated cost or savings to:

the state budget:

This rule amendment makes revisions, clarifications, corrections, updates, etc. to Rule R309-550. Because this rule amendment only makes this type of changes, it should not significantly increase Division staff time in administering the amended rule. Therefore, there should be no significant cost or savings from the proposed rule amendment to the state budget.

local governments:

The Division of Drinking Water regulates public drinking water systems and local governments are not part of the regulated community. Because of the type of this rule amendment, it should not affect local governments. Therefore, there should be no significant cost or savings from the proposed rule amendment to local government.

small businesses:

The Division of Drinking Water regulates public drinking water systems and small businesses are not part of the regulated community. Because of the type of this rule amendment, it should not affect small businesses. Therefore, there should be no significant cost or savings from the proposed rule amendment to small businesses.

persons other than small businesses, businesses, or local governmental entities:

The Division of Drinking Water regulates public drinking water systems and persons other than small businesses, businesses, and local government entities are not part of the regulated community, unless they are a public water system. Because of the type of this rule amendment, it should not affect persons other than small businesses, businesses, or local government entities. Therefore, there should be no significant cost or savings from the proposed rule amendment to persons to other than small businesses, businesses, or local government entities.

Compliance costs for affected persons:

The Division of Drinking Water regulates public drinking water systems. This rule amendment makes revisions, clarifications, corrections, updates, etc. to Rule R309-550. Because of the type of these changes in the rule, it should not significantly increase the time public drinking water systems and their engineering consultants spend in submitting projects for plan review and approval. Therefore, there should be no significant cost or savings from this rule amendment to the public water systems.

Comments by the department head on the fiscal impact the rule may have on businesses:

The proposed changes will not significantly impact businesses as the changes clarify compliance with the drinking water rules and update referenced standards for public drinking water systems.

Amanda Smith, Executive Director

The full text of this rule may be inspected, during regular business hours, at the Division of Administrative Rules, or at:

Environmental Quality
Drinking WaterRoom Third Floor
195 N 1950 W
SALT LAKE CITY, UT 84116-3085

Direct questions regarding this rule to:

• Ying-Ying Macauley at the above address, by phone at 801-536-4188, by FAX at 801-536-4211, or by Internet E-mail at ymacauley@utah.gov
• Bob Hart at the above address, by phone at 801-536-0054, by FAX at 801-536-4211, or by Internet E-mail at bhart@utah.gov
• Tammy North at the above address, by phone at 801-536-4293, by FAX at 801-536-4211, or by Internet E-mail at tnorth@utah.gov

Interested persons may present their views on this rule by submitting written comments to the address above no later than 5:00 p.m. on:

07/01/2014

This rule may become effective on:

07/08/2014

Authorized by:

Ken Bousfield, Director

R309. Environmental Quality, Drinking Water.

R309-550. Facility Design and Operation: Transmission and Distribution Pipelines.

R309-550-1. Purpose.

The purpose of this rule is to provide specific requirements for the design and installation of transmission and distribution pipelines [which]that are utilized to deliver [culinary ]drinking water to facilities of public drinking water systems or to consumers. It is intended to be applied in conjunction with rules R309-500 through R309-550. Collectively, these rules govern the design, construction, operation, and maintenance of public drinking water system facilities. These rules are intended to assure that [such]these facilities are reliably capable of supplying adequate quantities of water , which consistently meet applicable drinking water quality requirements and do not pose a threat to general public health.

 

R309-550-2. Authority.

This rule is promulgated by the Drinking Water Board as authorized by Title 19, Environmental Quality Code, Chapter 4, Safe Drinking Water Act, Subsection 104(1)(a)(ii) of the Utah Code and in accordance with Title 63G, Chapter 3 of the same, known as the Administrative Rulemaking Act.

 

R309-550-3. Definitions.

Definitions for certain terms used in this rule are given in R309-110 but may be further clarified herein.

 

R309-550-4. General.

Transmission and distribution pipelines shall be designed, constructed and operated to convey adequate quantities of water at ample pressure, while maintaining water quality.

 

R309-550-5. Water Main Design.

(1) Distribution System Pressure.

(a)  The distribution system shall be designed to maintain minimum pressures as required in R309-105-9 [(at ground level) ]at [all ]points of connection, under all conditions of flow[,].[ but especially during peak day flow conditions, including fire flows.]

(b) When static pressure exceeds 150 psi in new distribution water lines, pressure reducing devices shall be provided on mains in the distribution system where service connections exist.

(2) [Assumed]Design Flow Rates.

Flow rates [to be assumed]used when designing or analyzing distribution systems shall [be]meet the minimum requirements [as given ]in R309-510.[ of these rules.]

(3) [ Computerized Network] Hydraulic Analysis.

(a) All water mains shall be sized [after]following a hydraulic analysis based on flow demands and pressure requirements.[  If the calculations needed to conduct this hydraulic analysis are complex, a computerized network analysis shall be performed to verify that the distribution system will be capable of meeting the requirements of this rule.]

(b) Where improvements will upgrade more than 50% of an existing distribution system, or where a new distribution system is proposed, a hydraulic analysis of the entire system shall be prepared and submitted for review prior to plan approval.

(c) [In the analysis and design of water distribution systems, the following Hazen-William coefficients shall be used: PVC pipe = 140; Ductile Iron Pipe = 120; Cement-Mortar Lined Ductile Iron Pipe = 130 to 140.]Some projects require a hydraulic model. The Division may require submission of a hydraulic modeling report and/or certification, as outlined in R309-511, prior to plan approval.

(4) Minimum Water Main Size.

For water mains not connected to fire hydrants, the minimum line size shall be 4[-] inches in diameter[.], unless it serves picnic sites, parks, semi-developed camps, primitive camps, or roadway rest-stops. Minimum water main size , serving a fire hydrant lateral, shall be 8[-] inches in diameter unless a hydraulic analysis indicates that required flow and pressures can be maintained by [smaller]6-inch lines.

(5) Fire Protection.

[If]When a public water system is required to provide water for fire [suppression]flow by the local fire [authority]code official, or if the system has installed fire hydrants on existing distribution mains for that purpose:

(a) The design of the distribution system shall be consistent with the fire flow requirements as determined by the local fire code official.[Appendix B of the 2003 International Fire Code. As specified in this code, minimum fire-flow requirements are:]

[(i) 1000 gpm for one- and two-family dwellings with an area of less than 3600 square feet.

(ii) 1500 gpm or greater for all other buildings.

](b) The location of fire hydrants shall be consistent with [Appendix C of the 2003 International Fire Code. As specified in this code, average spacing between hydrants must be no greater than 500 ft.]the requirements of the State adopted fire code and as determined by the local fire code official.

[(c) An exception to the fire protection requirements of (a) and (b) may be granted if a suitable statement is received from the local fire protection authority.

(d) Water mains not designed to carry fire flows shall not have fire hydrants connected to them.

][(e)  ](c)  The pipe network design shall permit fire flows to be met at[The design engineer shall verify that the pipe network design permits fire-flows to be met at] representative locations while minimum pressures as required in R309-105-9 are maintained at all times and at all points in the distribution system.

(d) Fire hydrant laterals shall be a minimum of 6 inches in diameter.

[(f) As a minimum, the flows to be assumed during a fire-flow analysis shall be the "peak day demand" plus the fire flow requirement.

](6) Geologic Considerations.

The character of the soil through which water mains are to be laid shall be considered. [This information shall accompany any submittal for a pipeline project.]Special design and burial techniques shall be employed for Community water systems in areas of geologic hazard (e.g., slide zones, fault zones, river crossings, etc.)

(7) Dead Ends.

(a) In order to provide increased reliability of service and reduce head loss, dead ends shall be minimized by making appropriate tie-ins whenever practical.

(b) Where dead-end mains occur, they shall be provided with a fire hydrant if flow and pressure are sufficient, or with an approved flushing hydrant or blow-off for flushing purposes. Flushing devices shall be sized to provide flows [which]that will give a velocity of at least 2.5 fps in the water main being flushed. No flushing device shall be directly connected to any sewer.

(8) Isolation Valves.

Sufficient valves shall be provided on water mains so that inconvenience and sanitary hazards will be minimized during repairs. Valves shall be located at not more than 500 foot intervals in commercial districts and at not more than one block or 800 foot intervals in other districts. Where systems serve widely scattered customers and where future development is not expected, the valve spacing shall not exceed one mile.

(9) Corrosive Soils and Waters.

The design engineer shall consider the materials to be used when corrosive soils or waters will be encountered.

(10) Special Precautions in Areas of [Groundwater ]Contamination[ by Organic Compounds].

Where distribution systems are installed in areas of [groundwater ]contamination[ed by organic compounds]:

(a) pipe and joint materials , which are not subject to contamination such as permeation of the organic compounds, shall be used[.]; and,

(b) non-permeable materials shall be used for all portions of the system including water main s, service connections, and hydrant leads.

(11) [Separation of ]Water Mains [from]and Other Sources of Contamination.

Design engineers shall exercise caution when locating water mains at or near certain sites such as sewage treatment plants or industrial complexes. Individual septic tanks shall be located and avoided. The engineer shall contact the Division to establish specific design requirements for locating water mains near any source of contamination.

 

R309-550-6. Component Materials and Design.

(1) ANSI/NSF Standard for Health Effects.

All materials [which]that may come in contact with drinking water, including pipes, gaskets, lubricants and O-Rings, shall be ANSI-certified as meeting the requirements of ANSI/NSF Standard 61, Drinking Water System Components - Health Effects. To permit field-verification of this certification, all [such ]components shall be appropriately stamped with the NSF logo.

(2) [Restrictions on ]Asbestos and Lead.

(a) The use of asbestos cement pipe shall not be allowed.

(b) Pipes and pipe fittings installed after January 4, 2014,[containing more than 8% lead shall not be used. Lead-tip gaskets shall not be used. Repairs to lead-joint pipe shall be made using alternative methods.] are required to be "lead free" in accordance with Section 1417 of the Federal Safe Drinking Water Act. They shall be certified as meeting ANSI/NSF 372 or Annex G of ANSI/NSF 61.

(3) [AWWA ]Standards for Mechanical Properties.

Pipe, joints, fittings, valves, and fire hydrants shall conform to ANSI/NSF Standard 61[ or Standard 14], and applicable sections of [ANSI/]AWWA Standards C104-A21.4-0[3]8 through C550-05 and C900-07 through C950-07.

(4) Used Materials.

Only materials [which]that have been used previously for conveying [potable]drinking water may be reused. Used materials shall meet the above standards, be thoroughly cleaned, and be restored [practically ]to their original condition.

(5) Fire Hydrants[ Design].

(a)  Hydrant drains shall not be connected to, or located within, 10 feet of sanitary sewers, and where possible [or ]storm drains.

(b) Auxiliary valves shall be installed in all hydrant leads.

(c) Hydrant drains shall be installed with a gravel packet or dry well unless the natural soils will provide adequate drainage.

(6) Air Relief Valves and Blow-Offs.

At high points in water mains where air can accumulate, provisions shall be made to remove air by means of hydrants or air relief valves.[  Automatic air relief valves shall not be used in situations where flooding may occur.]

(a) The open end of the air relief vent pipe from automatic valves shall be provided with a #14 mesh, non-corrodible screen and a downward elbow, and where possible, be extended to at least one foot above grade. Alternatively, the open end of the pipe may be extended to as little as one foot above the top of the pipe if the valve's chamber is not subject to flooding, or if it meets the requirements of (7) Chamber Drainage.

(b) Blow-offs or air relief valves shall not be connected directly to any sewer.

(c) Adequate hydrants or blow-offs shall be provided to allow periodic flushing and cleaning.

(d) The air relief valve shall be placed to prevent problems due to freezing. A shut-off valve shall be provided to permit servicing of any air relief valve.

[(a) Air Relief Valve Vent Piping.

The open end of an air relief vent pipe from automatic valves shall, where possible as determined by public water system management, be extended to at least one foot above grade and provided with a screened (#14 mesh, non-corrodible) downward elbow. Alternately, the open end of the pipe may be extended to as little as one foot above the top of the pipe if the valve's chamber is not subject to flooding and provided with a drain-to-daylight (See (b) below). Blow-offs or air relief valves shall not be connected directly to any sewer.

][(b)](7) Chamber Drainage.

(a) Chambers, pits , or manholes containing valves, blow-offs, meters, or other such appurtenances to a distribution system, shall not be connected directly to any storm drain or sanitary sewer.

(b) [They]Chambers shall be provided with a drain to daylight[.], if possible. Where this is not possible, underground gravel -[ ]filled absorption pits may be used if the site is not subject to flooding and conditions will assure adequate drainage.  Sump pumps may also be considered if a drain to daylight or absorption pit is not feasible.[Where a chamber contains an air relief valve, and it is not possible to provide a drain-to-daylight, the vent pipe from the valve shall be extended to at least one foot above grade (See (a) above). Only when it is both impossible to extend the vent pipe above grade, and impossible to provide a drain-to-daylight may a gravel filled sump be utilized to provide chamber drainage (assuming local ground conditions permit adequate drainage without ground water intrusion).]

(8) Control Valve Stations

(a) Pressure Reducing Valves (PRVs)

(i) Isolation Valves shall be installed on either side of the pressure reducing valve.

(ii) Where variable flow conditions will be encountered, consideration should be given to providing a low-flow and a high-flow line.

(b) Backflow Devices

Installation of Backflow devices shall conform to the State-adopted plumbing code.

(c) Meters

Meter installation shall conform to the State-adopted plumbing code and local jurisdictional standards.

 

R309-550-7. Separation of Water Mains and Transmission Lines from Sewers[ and Other Pollution Sources].

(1) Basic Separation Standards.

(a)  The horizontal distance between [pressure ]water [mains]lines and sanitary sewer lines shall be at least [ten]10 feet. Where a water main and a sewer line must cross, the water main shall be at least 18 inches above the sewer line. Separation distances shall be measured edge-to-edge (i.e. from the nearest edges of the facilities).

(b) Water mains and sewer lines shall not be installed in the same trench.

[(2) Exceptions to Basic Separation Standards.

](c) Where [L]local conditions make it impossible to[, such as available space, limited slope, existing structures, etc., may create a situation where there is no alternative but to] install water [mains ]or sewer lines at separation distances[a distance less than that] required by s[S]ubsection ([1]a), above[.], and the sewer pipes are in good condition, and there is not high groundwater in the area, it may be acceptable if the design includes a minimum horizontal separation of 6 feet and a minimum vertical clearance of 18 inches with the waterline being above. In order to determine whether the design is acceptable, the following information shall be submitted as part of the plans for review.[  Exceptions to the rule may be provided by the Director if it can be shown that the granting of such an exception will not jeopardize the public health.]

(i) reason for not meeting the minimum separation standard;

(ii) location where the water and sewer line separation is not being met;

(iii) horizontal and vertical clearance that will be achieved;

(iv) sewer line information including pipe material, size, age, type of joints, thickness or pressure class, whether the pipe is pressurized or not, etc.;

(v) water line information including pipe material, size, age, type of joints, thickness or pressure class, etc.;

(vi) ground water and soil conditions; and,

(vii) any mitigation efforts.

(d) If the basic separation standards as outlined in subsections (a) though (c) above cannot be met, an exception to the rule can be applied for with additional mitigation measures to protect public health, in accordance with R309-105-6(2)(b).

(3) Special Provisions.

The following special provisions apply to all situations:

(a) The basic separation standards are applicable under normal conditions for sewage collection lines and water distribution mains. More stringent requirements may be necessary if conditions such as high groundwater exist.

[(b) Sewer lines shall not be installed within 25 feet horizontally of a low head (5 psi or less pressure) water main.

][(c)](b) [Sewer lines shall not be installed within 50 feet horizontally of any transmission line segment which may become unpressurized.]All water transmission lines that may become unpressurized shall not be installed within 20 feet of sewer lines.

[(d) New water mains and sewers shall be pressure tested where the conduits are located ten feet apart or less.

][(e)](c) In the installation of water mains or sewer lines, measures shall be taken to prevent or minimize disturbances of the existing line.

[(f)](d) Special consideration shall be given to the selection of pipe materials if corrosive conditions are likely to exist or where the minimum separation distances cannot be met. These conditions may be due to soil type, groundwater, and/or the nature of the fluid conveyed in the conduit, such as a septic sewage which produces corrosive hydrogen sulfide.

[(g)](e) Sewer Force Mains

[(i) Sewer force mains shall not be installed within ten feet (horizontally) of a water main.

(ii) When a sewer force main must cross a water line, the crossing shall be as close as practical to the perpendicular. The sewer force main shall be at least 18 inches below the water line.

][(iii)](i) When a new sewer force main crosses under an existing water main, all portions of the sewer force main within [ten]10 feet (horizontally) of the water main shall be enclosed in a continuous sleeve.

[(iv)](ii) When a new water main crosses over an existing sewer force main, the water main shall be constructed of pipe materials with a minimum rated working pressure of 200 psi or equivalent pressure rating.

(4) Water Service Laterals Crossing Sewer Mains and Laterals.

Water service laterals shall conform to all requirements given herein for the separation of water and sewer lines.

 

R309-550-8. Installation of Water Mains.

(1) Standards.

[(a) ]The specifications shall incorporate the provisions of the manufacturer's recommended installation procedures or the following applicable standards:

[(i)](a) For ductile iron pipe, AWWA Standard C600-10[05], Installation of Ductile Iron Water Mains and Their Appurtenances;

[(ii)](b) For PVC pipe, ASTM D2774, Recommended Practice for Underground Installation of Thermoplastic Pressure Piping and PVC Pipe and AWWA Manual of Practice M23, 2003;

(c) For HDPE pipe, ASTM D2774, Recommended Practice for Underground Installation of Thermoplastic Pressure Piping and AWWA Manual of Practice M55, 2006; and,

(d) For Steel pipe, AWWA Standard C604-11, Installation of Buried Steel Water Pipe- 4 inch and Larger.

[(b) The provisions of the following publication shall be followed for PVC pipe design and installation:

PVC Pipe - Design and Installation, AWWA Manual M23, 2002, published by the American Water Works Association

](2) Bedding.

A continuous and uniform bedding shall be provided in the trench for all buried pipe. Stones larger than the backfill materials described below shall be removed for a depth of at least [six]6 inches below the bottom of the pipe.

(3) Backfill.

Backfill material shall be tamped in layers around the pipe and to a sufficient height above the pipe to adequately support and protect the pipe. The material and backfill zones shall be as specified by the standards referenced in Subsection (1), above. As a minimum:

(a) [F]for plastic pipe, backfill material with a maximum particle size of 3/4 inch shall be used to surround the pipe ; and,[ .]

(b) [F]for ductile iron pipe, backfill material shall contain no stones larger than 2 inches.

(4) Dropping Pipe into Trench.

Under no circumstances shall the pipe or accessories be dropped into the trench.

(5) Burial Cover.

All water mains shall be covered with sufficient earth or other insulation to prevent freezing , unless they are part of a non-community system that can be shut-down and drained during winter months when temperatures are below freezing.

(6) Thrust Blocking.

All tees, bends, plugs, and hydrants shall be provided with [reaction]thrust blocking, anchoring, tie rods, or restraint joints designed to prevent movement.  Restraints shall be sized to withstand the forces experienced.

(7) Pressure and Leakage Testing.

All types of installed pipe shall be pressure tested and leakage tested in accordance with AWWA Standard C600-[99]10.

(8) Surface Water Crossings.

(a) Above Water Crossings

The pipe shall be adequately supported and anchored, protected from damage and freezing, and accessible for repair or replacement.

(b) Underwater Crossings

(i)  A minimum cover of [two]2 feet or greater, as local conditions may dictate, shall be provided over the pipe.

(ii)  When crossing water courses [which]that are greater than 15 feet in width, the following shall be provided:

[(i)](A) [The p]Pipe with joints shall be of special construction, having restrained joints for any joints within the surface water course and flexible restrained joints at both edges of the water course.

[(ii)](B)  Isolating [V]valves shall be provided [at]on both [ends]sides of the water crossing[s] at locations not subject to high ground water or flooding, so that the section can be isolated for testing or repair.[; the valves shall be easily accessible, and not subject to flooding; and the valve nearest to the supply source shall be in a manhole.]

[(iii)](C)  A means shall be provided, such as a sampling tap, not subject to flooding, to allow for representative water quality testing on the upstream and downstream side of the crossing.[  Permanent taps shall be made on each side of the valve within the manhole to allow insertion of testing equipment to determine leakage and for sampling purposes.]

(D) A means shall be provided to pressure test the underground water crossing pipe.

(9) Sealing Pipe Ends During Construction.

The open ends of all pipelines under construction shall be covered and effectively sealed at the end of the day's work.

(10) Disinfecting Water [Distribution Systems]Lines.

All new water mains or appurtenances shall be disinfected in accordance with AWWA Standard C651-05 or a method approved by the Director. The specifications shall include detailed procedures for the adequate flushing, disinfection and microbiological testing of all water mains. On all new and extensive distribution system construction, evidence of satisfactory disinfection shall be provided to the Division. Samples for coliform analyses shall be collected after disinfection is complete and the system is refilled with [potable]drinking water. A standard heterotrophic plate count is advisable. The use of water for [culinary]public drinking water purposes shall not commence until the bacteriologic tests indicate the water [to be]is free from contamination.

 

R309-550-9. Cross Connections and Interconnections.

(1) Physical Cross Connections.

There shall be no physical cross connections between the distribution system and pipe, pumps, hydrants, or tanks [which are supplied from, or which]that may be [supplied or ]contaminated from[,] any source, including pressurized irrigation.[except as approved by the Director.]

(2) Recycled Water.

Neither steam condensate nor cooling water from engine jackets or other heat exchange devices shall be returned to the [potable]drinking water supply.

(3) System Interconnects.

The [approval of the Director shall be obtained for ]interconnections between different [potable]drinking water [supply ]systems shall be reviewed and approved by the Director.

 

R309-550-10. Water Hauling.

(1) Community Water Systems.

Water hauling is not an acceptable permanent [method]source for [culinary]drinking water distribution in community water systems.[  Proposals for water hauling shall be submitted to and approved by the Director.]

[(1)](2) [Exceptions.]Non-community Systems.

The Director may allow [its]water hauling [use ]for non-community public water [supplies]systems by special approval if:

(a) consumers [could]can not otherwise be supplied with good quality drinking water[,]; or,

(b) the nature of the development, or ground conditions, are such that the placement of a pipe distribution system is not justified.

Proposals for water hauling shall be submitted to, and approved by, the Director.

[(2)](3) Emergencies.

Water [H]hauling [may also be necessary as]may be a temporary means of providing [culinary]drinking water in an emergency.

 

R309-550-11. Service Connections and Plumbing.

(1) Service Taps.

Service taps shall [be made so as to ]not jeopardize the [sanitary ]quality of the system's water.

(2) Plumbing.

[(a) Service lines shall be capped until used.

][(b)](a) Water services and plumbing shall conform to the Utah Plumbing Code.[  Solders and flux containing more than 0.2% lead and pipe and pipe fittings containing more than 8% lead shall not be used.]

(b) Pipes and pipe fittings installed after January 4, 2014, are required to be "lead-free" in accordance with Section 1417 of the federal Safe Drinking Water Act. They shall be certified meeting the ANSI/NSF 372 or Annex G of ANSI/NSF 61.

(3) Individual Home Booster Pumps.

Individual booster pumps shall not be allowed for any individual service from the public water supply mains. Exceptions to the rule may be [provided]granted by the Director if it can be shown that the granting of such an exception will not jeopardize the public health.

(4) Service Lines.

(a) Service lines shall be capped until connected for service.

(b)  The portion of the service line under the control of the water [supplier]system is considered to be part of the distribution system.[ and shall comply with all requirements given herein.]

(5) Service Meters and Building Service Line.

Connections between the service meter and the home shall be in accordance with the Utah Plumbing Code.

[(6) Allowable Connections.

All dwellings or other facilities connected to a public water supply shall be in conformance with the Utah Plumbing Code.

]

R309-550-12. Transmission Lines.

(1) Unpressurized Flows.

Transmission lines shall conform to all applicable requirements in this rule. Transmission line design shall minimize unpressurized flows.

(2) Proximity to Concentrated Sources of Pollution.

A water supplier shall not route an unpressurized transmission line any closer than [fifty]20 feet to any concentrated source of pollution ([i.e.]e.g., septic tanks and drain fields, garbage dumps, pit privies, sewer lines, feed lots, etc.). Furthermore, unpressurized transmission lines shall not be placed in boggy areas or areas subject to the ponding of water.

[(3) Exceptions.

Where the water supplier cannot obtain a fifty foot separation distance from concentrated sources of pollution, it is permitted to use a Class 50 ductile iron pipe with joints acceptable to the Director. Reasonable assurance must be provided to assure that contamination will not be able to enter the unpressurized pipeline.

]

R309-550-13. Operation and Maintenance.

(1) Disinfection After Line Repair.

The disinfection procedures of Section 4.7, AWWA Standard C651-05 shall be followed if any water main is cut into or repaired.

(2) Cross Connections.

The water [supplier]system shall not allow a connection [which]that may jeopardize water quality. Cross connections are not allowed unless controlled by an approved and properly operating backflow prevention assembly. The requirements of the Utah Plumbing Code shall be met with respect to cross connection control and backflow prevention.

[Suppliers]Water systems shall maintain an inventory of each pressure vacuum breaker assembly, spill-resistant vacuum breaker assembly, double check valve assembly, reduced pressure principle backflow prevention assembly, and high hazard air gap used by their customers, and a service/inspection record for each such assembly.

Backflow prevention assemblies shall be inspected and tested at least once a year, by an individual certified for such work. This responsibility may be borne by the water system or the water system management may require that the customer [having]with the backflow prevention assembly be responsible for having the device tested.

[Suppliers]Water systems serving areas also served by a pressurized irrigation system shall [prevent]not allow cross connections between the two.[Requirements for pressurized irrigation systems are outlined in Section 19-4-112 of the Utah Code.]

(3) ANSI/NSF Standards.

All pipe and fittings used in routine operation and maintenance shall be ANSI-certified as meeting NSF Standard 61 or Standard 14.

(4) Seasonal Operation.

Water systems operated seasonally shall be disinfected and flushed according to [the techniques given in ]AWWA Standard C651-05 for pipelines and AWWA Standard C652-[02]11 for storage facilities prior to each season's use. A satisfactory bacteriologic sample shall be [achieved]obtained prior to use. During the non-use period, care shall be taken to close all openings into the system.

 

KEY: drinking water, transmission and distribution pipelines, connections, water hauling

Date of Enactment or Last Substantive Amendment: [March 8, 2006]2014

Notice of Continuation: March 22, 2010

Authorizing, and Implemented or Interpreted Law: 19-4-104