This Manual shall apply to risk management practices for all potable and non-potable water supply systems during normal operation, when closing, during interruptions to normal operation, and when reopening building water systems in specific occupancy types. Section 4 shall apply to potable water systems, nonpotable water systems, and mechanical systems. Section 5 shall apply to potable water systems. Section 6 shall apply to nonpotable water systems. Section 7 shall apply to mechanical systems.

The purpose of this document is to establish methods to address the compliance of consumer products or materials with California Proposition 65 requirements. Product compliance is determined in accordance with this document and input from a product manufacturer and supplier. This document is intended to cover specific consumer materials or products that include:

  • Drinking Water Treatment Products
  • Plumbing Products
  • Pool and Spa Equipment
  • Drinking Water Treatment Chemicals

The California Code of Regulations defines “consumer product” in § 25600.1. Definitions. as “any article, or component part thereof, including food, that is produced, distributed, or sold for the personal use, consumption or enjoyment of a consumer.” This Document addresses any potential exposures which may occur during the initial installation of a consumer product, whether the installation is by a professional or a consumer. This Document specifies some acceptable laboratory testing methods for various products/materials and exposure pathways. In addition, this document specifies methods which may be used to derive safe harbor levels, (No Significant Risk Levels (NSRLs) for cancer-causing chemicals and Maximum Allowable Dose Levels (MADLs) for chemicals causing reproductive toxicity), for chemicals specified on the Proposition 65 list for which no safe harbor levels have been derived. The Document is intended to be used by risk assessors and only applies to businesses with 10 or more employees.

The intent of this manual is to provide clarification of procedures for the design and approval of all gender toilet facilities not specifically covered in other parts of the Plumbing or Building Code.

This document will serve as a guide in assessing medical gas flow rates associated with varying pressures. Since the pandemic, the medical gas piping systems were stretched to their limits resulting in insufficient flow rates and pressures at patient outlets, due in part to undersized lines for elevated flow rates. The pandemic required facilities to alter their medical gas pressures for medical air and oxygen. This document will assist you in evaluating the medical gas systems and flow rates for temporary operations at elevated pressures.

For existing systems, this document provides guidance on how to determine the limitations of the line pressure increase and estimating the performance improvements using the pressure loss charts provided or by developing new charts. This document looks to provide additional concepts in using pressure regulators (refer to 2021 NFPA 99 in regard to multiple pressure requirements). Pressure regulators help to provide higher pressures in areas needing elevated pressure due to increased demand without having to increase pressure everywhere.

This manual provides education and guidance to help plumbers and other personnel responsible for the design, construction and commissioning of water systems reduce the likelihood of contaminating plumbing systems during construction. If unmanaged, construction and commissioning activities contribute to the growth and spread of opportunistic premise plumbing pathogens (OPPPs) in potable and nonpotable building water systems. According to the CDC, 75% of the unmanaged external changes that have resulted in outbreaks of Legionnaires' disease were attributable to construction activities. This manual describes activities that can and should be practiced during installation and commissioning of new water systems to reduce the likelihood that water systems begin their service life contaminated. Recommended practices include many practices and procedures that make up water management programs that govern operation and monitoring of operational water systems and that are required for many building types such as health care facilities. Other practices are specific to risks associated with construction activities. Healthy building water systems are the shared responsibility of design engineers, plumbers and construction personnel, public water systems and other water purveyors, system operators and building owners and managers.