Al FuentesTechnical Review and Oversight Team

Water Supply Division

Your Public Water System’s Cross-Connection Control Program

• Authority• Plumbing Code• Enforcement

• Containment vs. Internal• Special considerations

• Record Retention• Auxiliary Water Systems• New Lead Rule

Outline of this Presentation

• Authority:• Testing Requirements• Customer Service Insp.

• The Plumbing Code• Enforcement

Authority

Backflow Cases

• Manufacturing facility in Texas uses river water for some of their processes.

• During a repair, they accidentally cross-connected to the potable water supply.

• Management was notified, alerted the people in the facility.

• Ice machines, reverse osmosis systems and under-sink filtration.

• Containment vs Internal Cross-Connection Control

• Special considerations• Approved backflow preventers.

Backflow Preventers

• TCEQ requirements• Key data on a form

Record Retention

• What the rule says.• How do you address these?• Teamwork

Auxiliary Water Systems

Backflow Event

• City park irrigation system• RPZ was installed but, not tested. • The nearby residents started

complaining of small worms in their water.

• Backflow from irrigation system, zero chlorine residual.

New Lead Requirements

• Definition of lead free for pipes and plumbing changed from 8% to 0.25%. Solder and flux remain the same at 0.2%.

• Exemptions for non-potable use and main gate valves 2” or larger.

Questions?

Al FuentesTechnical Review and Oversight TeamAlfonso.Fuentes@tceq.texas.gov512-239-1407

The toll free reporting number at TCEQ is 1-800-832-8224

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