MODULE-5 Wastewater Management

Introduction
On-Site Sewage Systems
Shared (Cluster) Systems
Small Sewage Treatment Plants
Innovative and Alternative (I/A) Wastewater Technologies
Water Reclamation and Reuse
Regulatory Jurisdiction for On-Site Wastewater Systems

Table 1 identifies the jurisdictional level and State Rule for different sized wastewater systems in Washington.

Table 1. Regulatory Jurisdiction for On-Site Wastewater Systems in Washington State

Design Flow	Jurisdiction	Rule
Less than 3,500 gpd design flow	Local Health Officer	Chapter 246-272A WAC
3,500 gpd – 14,500 gpd design flow*	WA State Department of Health, LOSS program	Chapter 246-272B WAC
Greater than 14, 500 gpd design flow*	WA State Department of Ecology	Chapter 173-226 WAC Chapter 173-240 WAC

For useful web links regarding wastewater management in Washington, click here.

* In 2009, DOH will have jurisdiction of residential systems with design flows from 3,500 - 100,000 gpd.

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