(a) Backflow Prevention Assemblies.
(1) All containment backflow prevention assemblies shall be installed at a location and in a manner approved by the Campbell Water Department at the expense of the owner. Also, it shall be the duty of the owner to have thorough inspections and operational testes performed annually, as required by the Campbell Water Department.
(2) A certified person approved and qualified to inspect and test backflow prevention devices shall perform the annual tests.
(3) The Campbell Water Department has the duty to ensure that all annual inspections are completed, and any required repairs shall be paid at the expense of the owner pursuant to Ohio Administrative Code Chapter 3745-95-06.
(b) Degree of Hazard Created.
(1) The Campbell Water Department has the final judgment in determining the degree of hazard that a premise creates, in addition to what type of backflow prevention device is needed at the premises.
(2) All new buildings or business requiring a backflow prevention device must install a reduced pressure principle backflow prevention assembly (American Society of Sanitary Engineering- ASSE 1013), at the owner's expense. (As stated under new buildings requiring a new service connection).
(c) Surveys.
(1) The Campbell Water Department shall conduct periodic surveys of the water use practices within consumer's premises to determine whether there are actual or potential cross-connections.
(2) The Campbell Water Department shall also have the right to enter the premises served by the public water system at all reasonable times for the purpose of making surveys (Ohio Administrative Code Chapter 3745-95-03) or the water service will be disconnected.
(3) Businesses moving into an existing building, which already has a backflow prevention device, must be resurveyed before the opening of the business to reevaluate the degree of hazard that is being created.
(d) New Buildings Requiring a New Service Connection.
(1) The Campbell Water Department has the right to: review plans for new buildings prior to construction, determine the degree of hazard, and to perform on site inspections before and after construction.
(2) Any new business or the expansion of an existing business is required to install a reduced pressure principle backflow prevention device at the owner's expense.
(e) Existing Service Connections.
(1) All existing backflow prevention assemblies may, in the judgment of the Campbell Water Department, need to be upgraded for increased backflow protection.
(2) The owner is responsible for the installation of the upgrade, and refusing or failure to upgrade the backflow prevention assembly will result in the disconnection of that particular existing service.
(3) The water service will not be turned on until the upgrade is completed (at the owner's expense), and approved by the Campbell Water Department.
(f) Backflow Prevention Assembly Installation.
(1) Containment principle backflow preventors must be installed immediately after the water meter. However, if the meter is located outside of the building then the containment principle device is typically installed inside the building unless otherwise approved by the Campbell Water Department. Certain backflow prevention assemblies require specific installation procedures, which must be followed.
(2) Where containment backflow assemblies are used, a thermal expansion tank is required on the cold water line of the hot water tank, as per the State of Ohio International Plumbing Code Section 608 (4101:2-61-81). Therefore a thermal expansion tank must be installed with any backflow prevention assembly at the expense of the owner.
(g) Installation Requirements.
(1) American National Standards Institute (ANSI 112.1) Approved air-gap separation. The air gap must be at least twice the diameter of the effective opening of the supply piping or one inch whichever is greater.
(2) American Society of Sanitary Engineering (ASSE 1015) Double Check Valve Assembly (applies to only existing double check valve assemblies, since all new businesses are required to install a reduced pressure assembly). The assembly must be installed to permit easy access without the use of platforms, ladders, or lifts and provide adequate spacing for testing and maintenance. The assembly must be protected from freezing temperatures, and should be sized hydraulically, taking into account both the flow rate and the head loss of the assembly. The head loss is not necessarily directly proportional to the flow, refer to the manufacturer’s head loss curves. Installation above ground is preferred but where it is not practical a pit or vault may be used.
(3) American Society of Sanitary Engineering (ASSE 1013) Reduced pressure backflow prevention device. The assembly must be installed to be easily accessible with adequate spacing for inspection, maintenance and testing. The assembly must be protected from freezing temperatures, and installed horizontally. The assembly must be installed so there is no leakage from the relief port. A drain, with an approved air-gap separation at the discharge opening of the relief port, should be installed to receive any spillage from the relief port. The assembly must be sized hydraulically taking into account both the volume requirements and head loss of the assembly. The head loss is not necessarily proportional to the flow, refer to the manufacturer’s head loss pressure curves. The assembly must be installed in line and must be the same size as the supply line. The assembly may not be installed in a pit and must always remain above grade. No reduced pressure principle backflow prevention assembly will be acceptable in a pit or vault.
(h) Maintenance Requirements.
(1) ANSI 112.1 Approved air-gap separation. The air-gap must be inspected frequently to ensure the air-gap has not been removed or altered.
(2) ASSE 1015 Double check valve assembly. A certified plumber must test the containment principle device at the time of installation and every twelve months thereafter. All backflow devices must be immediately repaired or replaced when malfunctioning, and the assembly must be rebuilt at least every 30 months. All data acquired must be recorded and sent to the Campbell Water Department in a timely manner.
(3) ASSE 1013 Reduced pressure principle assembly. The assembly is to be observed at least twice a week by the water consumer for evidence of leakage from the relief port. A certified plumber must test the containment principle device at the time of installation and every twelve months thereafter. All backflow devices must be immediately repaired or replaced when malfunctioning, and the assembly shall be rebuilt every 60 months. All data acquired shall be forwarded to the Campbell Water Department in a timely manner.
(i) Auxiliary Water Systems.
(1) There are to be no connections whereby water from a private, auxiliary, or emergency water system (wells, lakes, streams, used water, etc.) may enter the public water system, unless the method of connection and use of such a water system has been approved and deemed necessary by the Ohio Environmental Protection Agency. (Ohio R.C. 6109.13) Note: Private, auxiliary, or emergency water supplies include any water supply other than the approved public water supply. This includes water that has been used for the purposes of cooling or processing, and within elevated tanks, standpipes or ground tank not owned and maintained by the Campbell Water Department.
(2) If an auxiliary water system is approved (and deemed necessary) by the Ohio EPA an approved air gap separation (ANSI 112.1) shall be installed at the service connection to any premises at which there is an auxiliary water system available, at the cost of the owner (Auxiliary water systems may not be interconnected with the public water supply under any conditions).
(j) Cross-Connections. No person shall install or maintain a water service connection to any premises where actual or potential cross-connections to the public water system may exist. (Ohio Administrative Code Chapter 3745-95-02).
(k) Spool Connections. Removable spool connections are unacceptable and cannot be used to create a cross connection between the public water supply and an auxiliary water source.
(l) Bypassing a Backflow Assembly.
(1) An unprotected bypass around a backflow device is not allowed. When continuous water service is needed, then a parallel or manifold installation of a reduced pressure principle device is required.
(2) The two assemblies will allow for the shut down of the one assembly while not compromising the safety of the public.
(m) Booster Pumps.
(1) No person shall maintain a water service connection where a booster pump has been installed, unless such a booster pump is equipped with a low suction pressure cut off controller.
(2) It shall be the duty of the water consumer to ensure the low suction pressure cut off controller is in proper working order. (Ohio Administrative Code Chapter 3745-95-07).
(n) Isolation Principle Backflow Prevention Devices. Although isolation devices are governed by the Ohio Department of Commerce the Campbell Water Department strongly recommends the use of isolation principle devices when the situation dictates.
(o) Violations. The Campbell Water Department has the authority to discontinue service if, in the opinion of the Campbell Water Department, the proper backflow device is not installed, tested, or maintained. The Campbell Water Department may deny water to consumers who have not permitted surveys or have removed or bypassed their current backflow protection. The water to the premises will not be returned until the problem has been rectified to the approval of the Campbell Water Department.
(Ord. 03-9459. Passed 10-1-03.)