Plumbing & Water System Compliance Guide

#5 Code Violation: Plumbing & Backflow Issues

19,000+ citations • $500–$10,000 fine (2025)

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Why Plumbing Is the #5 Code Violation

Backflow, low hot water, and clogged drains cause health hazards & closures. UPC & DOH issued 19,000+ citations in 2023 — repeat violations lead to water shutoff.

Top Triggers:

  • Hot water <120°F
  • Missing backflow preventers
  • Grease trap not cleaned
  • No air gap on drains

2025 Fines (UPC 608 / FDA 5-203)  

Type Fine
Priority (low temp) $500–$2,000
Critical (backflow) $5,000–$10,000 + shutoff

Source: UPC 2021

Code Must-Haves

Required

  • ≥120°F at hand sinks
  • RPZ tested annually
  • 1" air gap on drains

Avoid

  • Cross-connections
  • Clogged floor sinks
  • No weekly flush

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By CGAP Industries | Updated: October 29, 2025

UPC 2021

Why Safety Signs Matter More Than You Think: Simple Fixes That Prevent Big Problems

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Ladder Safety Starts on the Wall – Not Just on the Rungs

  • Ladder Safety Starts on the Wall: Posting What Workers Actually Need to See - CGAP Industries

    Ladder Safety Starts on the Wall: Posting What ...

    Joseph Pannell

    Falls from ladders are one of those “we know better” hazards that still send workers to the hospital every year. Most crews understand the basics—don’t stand on the top step,...

    Ladder Safety Starts on the Wall: Posting What ...

    Joseph Pannell

    Falls from ladders are one of those “we know better” hazards that still send workers to the hospital every year. Most crews understand the basics—don’t stand on the top step,...

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