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1. Charter
2. Title 1 General Administration
3. Title 2 Government Organization
4. Title 3 Revenue and Taxation
5. Title 4 Licenses and Permits
6. Title 5 General Offenses
7. Title 6 Health, Safety and Sanitation
8. Title 7 Regulation of Vehicles, Pedestrians, and Parking
9. Title 8 Parks, Open Space, Streets, and Public Ways
10. Title 9 Land Use Regulation
11. Title 10 Structures
1. Chapter 10-1 Definitions
2. Chapter 10-2 Property Maintenance Code
3. Chapter 10-2.5 Abatement of Public Nuisances
4. Chapter 10-3 Rental Licenses
5. Chapter 10-4 Condominium Conversions
6. Chapter 10-5 Building Code
7. Chapter 10-5.5 Residential Building Code
8. Chapter 10-6 Electrical Code
9. Chapter 10-7 Energy Conservation and Insulation Code
10. Chapter 10-7.5 Green Building and Green Points Program
11. Chapter 10-8 Fire Prevention Code
12. Chapter 10-9 Mechanical Code
13. Chapter 10-9.5 Fuel Gas Code
14. »Chapter 10-10 Plumbing Code
15. Chapter 10-11 Signs on Private Property
16. Chapter 10-12 Mobile Homes
17. Chapter 10-13 Historic Preservation
12. Title 11 Utilities and Airport
13. Title 12 Human Rights
14. Title 13 Elections and Campaign Disclosures and Activities
15. Title 14 Arts
16. Index
17. Ordinances Pending Codification

Page Contents

• 10-10-1 Legislative Intent
• 10-10-2 Adoption of the International Plumbing Code With Modifications

Chapter 10-10: Plumbing Code³⁵

10-10-1 Legislative Intent.

The purpose of this chapter is to protect the public health and safety by regulating the installation, alteration, and repair of plumbing devices in structures in the city. The city council hereby adopts the 2006 edition of the International Plumbing Code with certain amendments and deletions thereto found to be in the best interests of the residents of the city.

Ordinance Nos. 4984 (1986); 5177 (1989); 5493 (1992); 5781 (1996); 7566 (2007)

10-10-2 Adoption of the International Plumbing Code With Modifications.

(a) The 2006 edition of the International Plumbing Code, published by the International Code Council, including appendices C Gray Water Recycling Systems, and E Sizing of Water Piping System, is hereby adopted by reference as the City of Boulder Plumbing Code or plumbing code and has the same force and effect as though fully set forth in this chapter, except as specifically amended by the provisions of this chapter.

(b) Except for Sections 101, 102, and 107, Chapter 1 is repealed. This code shall be administered in accordance with Chapter 1, "Administration," of the International Building Code as adopted, with amendments, by Section 10-5-2, "Adoption Of International Building Code With Modifications," B.R.C. 1981.

(c) Section 101.1 is repealed and reenacted to read:

101.1 Title. These regulations shall be known as the Plumbing Code for the City of Boulder or plumbing code and will be referenced herein as "this code."

(d) Section 312.5, "Water supply system test," is amended by deleting the words "for piping systems other than plastic" and by modifying the test pressure required from 50 psi (344 kPa) to 100 psi (688 kPa).

(e) Section 504.7.1 "Piping for safety pan drains shall be of those materials listed in Table 605.4." is repealed.

(f) Section 610, "Disinfection of potable water system," is repealed.

(g) Section 605.4 is amended by adding a new paragraph to read:

Water service line pipe between the water meter and building shall be Type K copper if it is in the public right-of-way, a public utility easement, or on other public property.

(h) Section 712.4.2, "Capacity," is amended by the addition of a new sentence to read:

Sewage pumps and sewage ejectors serving public fixtures shall be provided with dual pumps and ejectors arranged to operate independently in case of overload or failure.

(i) Section 1101.3, "Prohibited drainage," is repealed and reenacted to read:

No rain, surface, or subsurface water shall be connected to or discharged into any drainage system, unless first approved by the Administrative Authority.

(j) Section 1106.1, "General," is repealed and reenacted to read:

1106.1 General. The size of the vertical conductors and leaders, building storm drains, building storm sewers, and any horizontal branches of such drains or sewers shall be based on the 100-year hourly rainfall rate of 2.5 inches per hour or other approved local weather data.

(k) Appendix C, Section C101, last sentence of exception is repealed and reenacted to read:

Such systems that may impact public health in commercial and multiple residence projects shall be designed as required by the Boulder County Health Department.

(l) Table E103.3(2), "Load Values Assigned to Fixtures," is amended by the addition of a new sentence to read:

For the purpose of determining the largest instantaneous demand required in order to size a water meter, or for determining the amount of the plant investment fee, this table is repealed and replaced by the Fixture Unit/GPM Demand Chart and PIF Computation Sheet found at Appendix A to Chapter 11-1, "Water Utility," B.R.C. 1981.

(m) Table E103.3(3), "Table for Estimating Demand," is amended by the addition of a new sentence to read:

For the purpose of determining the largest instantaneous demand required in order to size a water meter, or for determining the amount of the plant investment fee, this table is repealed and replaced by the Fixture Unit/GPM Demand Equations and PIF Computation Sheets found at Appendix A to Chapter 11-1, "Water Utility," B.R.C. 1981.

Ordinance Nos. 4879 (1985); 4984 (1986); 5050 (1987); 5177 (1989); 5493 (1992); 5781 (1996); 6065 (1999); 6065 (1999); 7024 (1999); 7566 (2007)

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³⁵ Adopted by Ordinance no. 4636. Amended by Ordinance Nos. 4326, 4501.

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