The Drinking Water Section develops and provides technical guidelines for the design and construction of water and treatment works projects and drinking water related practices such as bulk water hauling. The technical guidelines are intended primarily for public water system certified operators, engineers, and consultants to help ensure that best engineering and management practices are being followed to help assist in the approval process. The technical information provided in the guidelines includes accepted best practices from Recommended Standards for Water Works and from organizations such as the American Water Works Association.
The Drinking Water Section is continuously developing new guidelines and revising existing ones due to the dynamic nature of drinking water delivery and treatment technology and as additional information becomes available. Public comments on the technical guidelines are always encouraged and may be considered for future revisions.
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Outline - Table of Contents -
Chapter 1 - Definitions
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Chapter 2 - Overview
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Chapter 3 - Source Development
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Chapter 4 - Process Treatment & Chemical Application
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Chapter 5 - Pump Stations
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Chapter 6 - Potable Water Storage Facilities
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Chapter 7 - Transmission & Distribution Systems
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Activation of an Inactive Source of Supply - This guidance document outlines the requirements to gain approval from the Drinking Water Section to activate an existing inactive source of supply.
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Atmospheric Storage Tank Inspection Guidelines - 10 year atmospheric finished water storage tank inspection guidelines.
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Bulk Water Hauling - guidelines for the physical transport of drinking water, by a vehicle having a permanently mounted or detachable water tank, from an approved source of supply to a public water system for the purpose of human consumption.
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Certification of Completed Water or Treatment Works Construction/Installation - This certification letter must be completed and signed by the Public Water System’s administrative official, his or her designated representative, or certified operator and submitted to the Drinking Water Section (DWS) after construction or installation of a DWS approved water or treatment works project is completed.
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Disinfection Contact Time - Technical Guidelines for Determining Disinfection Contact Time when Using Chlorine for Chlorination of Groundwater Sources of Supply. These guidelines have been recently updated to reflect the treatment requirements of the Groundwater Rule.
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Drinking Water Storage Facilities - Technical Guidelines for the Design and Construction of Drinking Water Storage Facilities.
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Grease Traps - Guidance on grease traps/interceptors near Public Drinking Water Sources.
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GWUDI - Guidance for the determination of groundwater under the direct influence of surface water.
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Interim Measures Standard Operating Procedure – This document establishes standard procedures to be followed by the PWS and the Drinking Water Section when an incident or condition that poses an imminent, substantial or immediate risk to public health occurs or exists.
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Liquid Chemical Feed Systems - Guidelines for the design and installation of Liquid Chemical Feed Systems.
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Operating Tests - Regulation Clarification
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Pressure Filters - Pressure filter design and installation guidelines.
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Roof_Drain_Clarification guidance document for replacing sediment filters
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Sediment Filter Replacement - Guidelines for replacing sediment filters
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UV Disinfection - Guidelines for installing and maintaining Ultraviolet Treatment Units or primary disinfection of groundwater public water systems.
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Unscheduled and Emergency Repairs of Water Mains - Recommended sanitary procedures when making unscheduled and emergency repairs of water mains.
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Water Main Design and Construction Guidelines - Technical guidance document for water main design and construction.