§ 25-133. Preventive and control measures for containment.

A.

Service line protection. Backflow prevention device or separation shall be installed at the service connection to a consumer's water supply system where, in the judgment of the director of public works or designee, a health or pollution hazard to the consumer's water supply system or to the waterworks exists or may exist unless such hazards are abated or controlled to the satisfaction of the director of public works or designee

B.

Special conditions.

1.

When, as a matter of practicality, the backflow prevention device or separation cannot be installed at the service connection, the device or separation may be located downstream of the service connection but prior to any unprotected takeoffs.

2.

Where all actual or potential cross connections can be easily correctable at each point of use and where the consumer's water supply system is not intricate or complex, point-of-use isolation protection by application of an appropriate backflow prevention device or backflow prevention by separation may be used at each point of use in lieu of installing a containment device at the service connection.

C.

[Conditions for installation.] A backflow prevention device or backflow prevention by separation shall be installed at each service connection to a consumer's water supply system serving premises where the following conditions exist:

1.

Premises on which any substance is handled in such a manner as to create an actual or potential hazard to a waterworks (this shall include premises having auxiliary water systems or having sources or systems containing process fluids or waters originating from a waterworks which are no longer under the control of the waterworks owner).

2.

Premises having internal cross connections that, in the judgment of the director of public works or designee may not be easily correctable or intricate plumbing arrangements which make it impracticable to determine whether or not cross connections exist.

3.

Premises where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make an evaluation of all cross connection hazards.

4.

Premises having a repeated history of cross connections being established or reestablished.

5.

Other premises specified by the director of public works or designee where cause can be shown that a potential cross connection hazard not enumerated above exists.

D.

[Booster, fire pumps.] Premises having booster pumps or fire pumps connected to the waterworks shall have the pumps equipped with a pressure-sensing device to shut off or regulate the flow from the booster pump when the pressure in the waterworks drops to a minimum of ten (10) psi gauge at the service connection.

E.

[Designated facilities.] An approved backflow prevention device or backflow prevention by separation shall be installed at each service connection to a consumer's water supply system or installed under special conditions, section VII.B serving, but not necessarily limited to, the following types of facilities:

1.

Hospitals, mortuaries, clinics, veterinary establishments, nursing homes, dental offices and medical buildings;

2.

Laboratories;

3.

Piers, docks, waterfront facilities;

4.

Sewage treatment plants, sewage pumping stations, or storm water pumping stations;

5.

Food and beverage processing plants;

6.

Chemical plants, dyeing plants and pharmaceutical plants;

7.

Metal plating industries;

8.

Petroleum or natural gas processing or storage plants;

9.

Radioactive materials processing plants or nuclear reactors;

10.

Car washes and laundries;

11.

Lawn sprinkler systems, irrigation systems;

12.

Fire service systems;

13.

Slaughter houses and poultry processing plants;

14.

Farms where the water is used for other than household purposes;

15.

Commercial greenhouses and nurseries;

16.

Health clubs with swimming pools, therapeutic baths, hot tubs or saunas;

17.

Paper and paper-products plants and printing plants;

18.

Pesticide or exterminating companies and their vehicles with storage or mixing tanks;

19.

Schools or colleges with laboratory facilities;

20.

High-rise buildings (four (4) or more stories);

21.

Multiuse commercial, office, or warehouse facilities;

22.

Others specified by the director of public works or designee when reasonable cause can be shown for a potential backflow or cross connection hazard.

F.

Where lawn sprinkler systems, irrigation systems or fire service systems are connected directly to the waterworks with a separate service connection, a backflow prevention device or backflow prevention by separation shall be installed at the service connection or installed under special conditions, section VII.B.1.

(Ord. No. 04-1700-769, § 1, 11-11-04)

(Ord. No. 04-1700-769, § 1, 11-11-04)