Sewage Pipeline Blockages

from Ocean, Harbor and Bay Water Quality Report, 2017-2018

Introduction

1999 – 2018

The percentage of sewage spills caused by pipeline blockages from 1999 – 2018 is detailed in Figure 4. The percentage of sewage spills caused by pipeline blockages continues to be the leading cause of sewage waste discharges from 1999 – 2018. Since 2009, the increase in the percentage of sewage spills caused by pipeline blockages is primarily due to the significant decrease in the percentage of sewage spills caused by pipeline breaks as shown in Figure 5 (page 11). The significant reduction in pipeline breaks can be attributed to the wastewater collection agencies having to adopt “Sewer System Management Plans” which require the routine inspection, maintenance and rehabilitation of aging sewers.

Percent of Sewage Spills Caused By Pipeline Blockages 1999 – 2018 Figure 4.

76% 76% 75% 78% 67% 66%

100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Year

Percent 53%

87% 71%

81% 80%

78% 80%

88% 73% 79% 56% 57% 61% 60%

Source: Orange County Ocean, Harbor and Bay Water Quality Report Historical Data

2017 AND 2018 OCEAN, HARBOR AND BAY WATER QUALITY REPORT

Sewage Pipeline Blockages

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Introduction

More articles from this publication:

Introduction

Closure and Warning Signs

Number of Rain Advisory Days and Sewage Spill Beach Closures

Total Number of Rain Advisory Days 2000 – 2018

Ocean, Harbor And Baywater Rain Advisories

Ocean Water Postings Due To Bacteriological Standards Violations

Closures Due to Private Property Owner Sewage Spills 1999 – 2018

Closures

Total Number of Closures, Closure Days and BMDs

This article is from:

Ocean, Harbor and Bay Water Quality Report, 2017-2018