(A) For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GAP. An unobstructed vertical distance through an atmosphere between the discharge end of a pipeline supplied from a public water supply, and the overflow rim of the receiving portion of the customer’s water supply.
BACKFLOW. The flow of contaminants into the public water supply distribution system from a source other than the public water supply.
BOOSTER PUMP. A pump installed on a pipeline to increase water pressure and flow.
CROSS-CONNECTION. Any physical arrangement, including CROSS-CONNECTION control devices not in working order or not installed properly, whereby a public water supply distribution system is directly connected, either continuously or intermittently, with any secondary source of supply, sewer, drain, conduit, pool, piping, storage reservoir, plumbing fixture, or other device which contains, or may contain, and is capable of imparting to the public water supply, contaminants, contaminated water, sewage, or other wastes or liquid of unknown or unsafe quality.
CROSS-CONNECTION CONTROL DEVICE. Any device or assembly, approved by the town’s water utility for construction on or installation in water supply piping which is capable of preventing contaminants from entering the public water supply distribution system.
CROSS-CONNECTION CONTROL DEVICE TESTER. A person who has successfully completed training in testing and inspection of cross-connection control devices at an agency or school acceptable to the Commissioner of the Indiana Department of Management (IDEM), who has registered with IDEM and who has not be notified by IDEM or the town that his or her work is unacceptable under this subchapter.
CROSS-CONNECTION HAZARD. Any customer’s facility which, because of the nature and extent of activities on the premises or the materials used in connection with the activities or stored on the premises, would present an immediate or potential danger or health hazard to customers of the public water supply should backflow occur.
CUSTOMER. Any person who receives water from a public water supply of the town.
CUSTOMER SERVICE LINE. The pipeline from the public water supply to the water meter or, if none, the pipeline from the public water supply to the cross-connection control device.
CUSTOMER WATER SYSTEM. All piping, fixtures, and appurtenances including secondary sources of supply used by a customer to convoy water on his or her premises.
DOUBLE CHECK DETECTOR VALVE ASSEMBLY. A double check valve assembly with a three-fourth-inch copper line bypassing the assembly but containing a three-fourth-inch meter reading in gallons and three-fourth-inch double check valve assembly.
DOUBLE CHECK VALVE ASSEMBLY. A device or assembly composed of two tightly closing shutoff valves surrounding two independently acting spring loaded check valves, with four test cocks, one upstream of the four valves and one between each of the four check and shutoff valves.
DOWNSTREAM. The direction of the flow when only the public water supply is supplying water through the customer water system and backflow is not occurring.
PRESSURE-TYPE VACUUM BREAKER. A chamber fitted with a spring-loaded air inlet for relieving a vacuum or partial vacuum in a pipeline.
PUBLIC WATER SUPPLY. Any wells, reservoirs, lakes, rivers, source of supply, pumps, mains, pipes, facilities, and structures through which water is obtained, treated as may be required, and supplied through a water distribution system to at least 100 persons per day for drinking, domestic, or other purposes, including state owned facilities.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER. A device composed of two tightly closing shutoff valves surrounding two independently acting spring loaded pressure reducing check valves which in turn surround an automatic pressure differential relief valve and four test cocks, one upstream of the five valves and one between each of the four check and shutoff valves. The check valves effectively divide the structure into three chambers; pressure is reduced in each downstream chamber allowing the pressure differential relief valve to vent the center chamber to atmosphere should either or both check valves malfunction.
SECONDARY SOURCE OF SUPPLY. Any well, spring, cistern, lake, stream, intake structure, or other water source and appurtenances, used either continuously or intermittently, to supply water other than that from the town’s public water supply to the customer, including storage tanks and lines used to store water to be used only for firefighting, even though the water contained therein is supplied from the public water supply.
SUPPLIER OF WATER. Any person who owns and/or operates a public water supply.
UPSTREAM. The direction of flow opposite to downstream.
(B) No customers shall cause or allow the construction or maintenance of a cross-connection. Piping installed to bypass a cross-connection control device constitutes a cross-connection unless the bypass piping is also fitted with a similar cross-connection control device.
(C) No customer shall cause or allow the installation or maintenance of a booster pump in a customer water system unless a control device is installed to prevent operation of the booster pump when pressure to pump suction drops below 20 pounds per square inch gauge pressure.
(D) Customers constructing a new facility which is designated a cross-connection hazard as defined in the 327 I.A.C. 8-10 et seq., making modifications to the customer service line, installing a higher capacity meter at an existing facility which is designated a cross-connection hazard or making any change of use that would be designated a cross-connection hazard, shall construct an air gap or install a reduced pressure backflow preventer in accordance with state law and rules on the customer service line to the facility so designated.
(1) All existing building which house a business activity and are operated as such will be required to comply with this subchapter upon the occurrence of any one of the following events:
(a) New ownership of building;
(b) Remodeling;
(c) Change of occupancy;
(d) Installation of a new service line or upgrade of service;
(e) Addition of machinery or chemicals; and/or
(f) If backflow occurs.
(2) All fire sprinkler systems must have an approved double check detector valve assembly installed before the fire systems apparatus. Any fire suppression system that uses chemicals must install a reduced pressure backflow preventer, pursuant to the town’s water utility specifications on file in the office of the Town Engineer.
(E) No secondary source of water supply can be connected to customer’s water distribution system unless a backflow device is installed on the service line.
(F) Customers shall construct an air gap or install a reduced pressure principle backflow preventer or pressure-type vacuum breaker in accordance with this chapter on the water line connecting the public water supply to any land irrigation facility buried belowground which has a sprinkling outlet located less than six inches above grade. All installations must comply with town’s water utility specifications.
(Prior Code, § 9-161) (Res. 2012-1, passed 4-10-2012) Penalty, see § 52.999