(A) Plumbing fees shall be set by resolution of the City Council.
(B) The 2009 edition of the Uniform Plumbing Code is hereby amended to the extent described herein.
(1) 2009 UPC Chapter 1, Table 1-1, Plumbing and Gas Fee Schedule, is established by resolution by the City Council.
(2) 2009 UPC Chapter 4, Amendments. 402.3 Urinals, is amended by deleting subsection 402.3.1, Non-Water Urinals.
(3) 2009 Chapter 7 amendments.
(a) 703.1 , is amended by adding the minimum size building drain in one- and two-family dwellings shall be four inches.
(b) 717.0 , is amended by adding to the end of the section: “The minimum diameter for a building sewer shall be four (4) inches.”
(4) 2009 UPC Chapter 8 amendments. 807.4 is amended by substituting the following:
No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher air gap fitting on the discharge side of the dishwashing machine, or by looping the discharge line of the dishwasher as high as possible near the flood level rim of the kitchen sink. Listed air gap fittings shall be installed with the flood level (FL) marking at or above the flood level rim of the sink or drain-board, whichever is higher.
(5) 2009 UPC Chapter 9 amendments.
(a) 906.7, the first sentence, is amended to read:
Vent termination shall be a minimum of three (3) inches in diameter, but in no event smaller than the required vent size.
(b) 908.0 is amended by deleting the word “vertical” in the following subsections: 908.1.1 and 908.1.2.
(c) 908.2 is deleted in its entirety.
(6) 2009 Chapter 12 amendments.
(a) 1209.5.2.3 is amended by deleting the word “copper” from this section.
(b) 1209.5.3 is amended by deleting the term “seamless copper”.
(c) 1209.5.3.1 is deleted in its entirety.
(d) 1209.5.3.2 is amended by deleting the word “copper” from this section.
(e) 1209.5.8.4 is amended by deleting the word “copper” from subsection 3.
(f) 1211.2.1, is amended by adding the following:
Fuel piping from the gas meter into the building shall be hard piped. Corrugated Stainless Steel piping shall not be used.
(g) 1211.2 is amended by adding a subsection (3):
(3) Stainless Steel Corrugated piping shall be concealed in the walls or ceiling, there shall be a transition to hard pipe from the wall or ceiling to the appliance.
(h) 1212.1.3 Subsection 3 is amended to read:
Appliance connectors shall, at no time, have a diameter less than that of the inlet of the appliance as provided by the manufacturer. All other appliances unless, specifically designed by the manufacturer, and not designed to be readily moved, shall be rigidly connected to the gas piping with materials as provided in Section 1210.0.
(i) 1212.1.4 is deleted.
(j) 1212.1.6 is substituted to read:
Gas fired food service (commercial cooking) appliances shall either be hard piped or be connected with listed quick disconnect devices as section 1212.6 describes.
(k) 1214.1.1 is amended by adding the following sentence:
Screwed gas piping shall be pressure tested with a pressure of ten pounds (10#s)of air for at least fifteen (15) minutes and welded piping shall be pressure tested with a minimum pressure of sixty (60#s) pounds of air for thirty (30) minutes.
(C) Section 1003A,* Cross Connection Control-Containment Provisions, is added to read as follows:
a.) Definitions. The following definitions shall apply only to section 1003A. For the purpose of this section, these definitions supersede definitions given elsewhere in this Code.
1) Approved backflow prevention assembly for containment. A backflow prevention assembly which is listed by the University of Southern California Foundation for Cross Connection Control and Hydraulic Research as having met the requirements of ANSI-AWWA Standard C510-89, Double Check valve Backflow Prevention Assemblies,” or ANSI-AWWA Standard C511-89, “Reduced-Pressure Principle Backflow- Prevention Assemblies,” for containment. The listing shall include the limitations of use based on the degree of hazard. The backflow prevention assembly must also be listed by the International Association of Plumbing and Mechanical Officials.
2) Approved backflow prevention assembly for containment in a fire protection system. A backflow prevention assembly to be used in a fire protection system which meets the requirements of Factory Mutual Research Corporation (FM) and Underwriters’ Laboratories, Inc. (UL), and the requirement of the fire code and the building code of the City of Marshalltown, in addition to the requirements of paragraph (1)a. Devices sized smaller than 2 1/2 inches which have not been listed by Underwriters’ Laboratories, Inc. (UL), and tested by Factory Mutual Research Corporation (FM) may be allowed if they meet the requirements of the fire code and the building code of the city.
3) Auxiliary water supply. Any water supply on or available to the premises other than the water purveyor’s approved public water supply such as but not limited to a private well, pond, or river.
4) Containment. A method of backflow prevention that requires the installation of a backflow prevention assembly at the water service entrance.
5) Cross connection. Any actual or potential connection or arrangement, physical or otherwise, between a potable water supply system and any plumbing fixture or tank, receptacle, equipment, or device, through which it may be possible for non-potable, used, unclean, polluted, and contaminated water, or other substance, to enter into any part of such potable water system under any condition.
6) Customer. The owner, operator, or occupant of a building or property that has a water service from a public water system, or the owner or operator of a private water system which has a water service from a public water system.
7) Degree of hazard. The rating of a cross connection or water service that indicates if it has the potential to cause contamination or pollution.
8) Double check valve backflow prevention assembly. A backflow prevention device consisting of two independently acting internally loaded check valves, four properly located test cocks, and two isolation valves.
9) High hazard cross connection. A high hazard cross connection is a cross connection which may cause an impairment of the quality of the potable water by creating an actual hazard to the public health, through poisoning or through the spread of disease by sewage, industrial fluids, or waste.
10) Isolation. A method of backflow prevention in which a backflow prevention assembly is located at the cross connection rather than at the water service entrance.
11) Low hazard cross connection. A low hazard cross connection is a cross connection which may cause an impairment of the quality of potable water to a degree which does not create a hazard to the public health, but which does adversely and unreasonably affect the aesthetic qualities of such potable waters for domestic use.
12) Reduced pressure principle backflow prevention assembly. A backflow prevention device consisting of two independently acting internally loaded check valves, a different pressure relief valve, four properly located test cocks, and two isolation valves.
13) Registered backflow prevention assembly technician. A person who is registered by law to test or repair backflow prevention assemblies and report on the condition of those assemblies.
14) Thermal expansion. Volumetric increase of water due to heating resulting in increased pressure in a closed system.
15) Water service. Depending on the context, water service is the physical connection between a public water system and a customer’s building, property, or private water system, or the act of providing potable water to a customer.
b.) Administrative authority.
1) For the purposes of section 1003A only, the administrative authority is the City Council acting through the Marshalltown Water Works Board of Trustees.
2) The administrative authority and its agents shall have the right to enter, with the consent of the customer or upon the basis of a suitable warrant issued by a court of appropriate jurisdiction, any property to inspect for possible cross connections.
3) The administrative authority may approve training programs for backflow prevention assembly technicians and register backflow prevention assembly technicians who successfully complete an approved training program.
4) The administrative authority through its agent, the Marshalltown Water Works, may collect fees for the administration of this program. The annual renewal fee shall be $10.00 per year.
5) The administrative authority shall maintain records of cross connection hazard surveys, and the installation, testing, and repair of all backflow prevention assemblies installed for containment purposes.
6) The city shall provide necessary legal assistance for enforcement of this section.
c.) New water services.
1) Plans shall be submitted to the administrative authority for review on all new water services in order to determine the degree of hazard.
2) The administrative authority shall determine the type of backflow prevention assembly required for containment based on the degree of hazard.
3) The administrative authority shall require the installation of the appropriate backflow prevention assembly for containment before the initiation of water service.
d.) Existing water services.
1) Upgrades of existing water services shall be treated as new water services for the purpose of section 1003A.
2) Within six months after adoption of this section, the administrative authority shall publish and make available to each customer a copy of the standards used to determine the degree of hazard.
3) Within 30 days after written notice from the administrative authority and after publication of the standards, customers whose premises are classified as single-family residential shall complete and return to the administrative authority a cross connection hazard survey to be used to determine the type of containment device.
4) Within 30 days after written notice from the administrative authority and after publication of the standards, the following customers shall complete and return to the administrative authority a cross connection hazard survey to be used to determine the type of containment device:
5) Customers whose premises are not classified as single-family residential.
6) Customers whose premises are classified as single-family residential and the premises contain an irrigation or fire protection system.
7) The administrative authority shall, on the basis of information received from customers or gathered through on-premises investigations or surveys, determine the type of backflow prevention assembly required for containment based on the degree of hazard.
8) Within the timeframe specified in writing by the administrative authority, the customer shall install a backflow prevention assembly for containment required by the administrative authority.
9) For existing water services, the administrative authority may inspect the premises to determine the degree of hazard. When high hazard cross connections are found, the administrative authority shall, at its sole discretion:
10) Develop a schedule of compliance which the customer shall follow; or
i. Terminate the water service until a backflow prevention assembly for containment required by the administrative authority has been installed.
ii. Failure of the administrative authority to notify a customer that they are believed to have a high hazard cross connection and that they shall install backflow prevention assemblies for containment in no way relieves a customer of the responsibility to comply with all requirements of this section.
e.) Customer.
1) The customer shall be responsible for ensuring that no cross connections exist without approved backflow protection within his or her premises starting at the point of service from the public potable water system.
2) The customer shall, at his or her own expense, cause installation, operation, testing and maintenance of the backflow prevention assemblies required by the administrative authority.
3) The customer shall ensure the administrative authority is provided with copies of records of the installation and of all tests and repairs made to the backflow prevention assembly within 15 days after testing and/or repairs are completed.
4) In the event of a backflow incident, the customer shall immediately notify the Marshalltown Water Works of the incident and take steps to confine the contamination or pollution.
f.) Required backflow prevention assemblies for containment-Water services.
1) An air gap or an approved reduced pressure principle backflow prevention assembly is required for water services having one or more cross connections which the administrative authority classifies as high hazard.
2) An approved double check valve assembly is required for water services having no high hazard cross connections but having one or more cross connections which the administrative authority has classified as low hazard.
g.) Required backflow prevention assemblies for containment-Fire protection systems.
1) A reduced pressure principle backflow prevention assembly shall be installed on all new and existing fire protection systems that the administrative authority determines to have any of the following:
i. Direct connections from public water mains with an auxiliary water supply on or available to the premises for pumper connection.
ii. Interconnections with auxiliary supplies such as reservoirs, rivers, ponds, wells, mills, or other industrial water systems.
iii. Use of antifreezes or other additives in the fire protection system.
iv. Combined industrial or domestic with high hazard and fire protection systems supplied from the public water mains only, with or without gravity storage or pump suction tanks.
v. Any other facility, connection, or condition that may cause contamination.
2) A double check valve assembly will be required for all other fire protection systems. The double check valve shall be required on all new systems at the time of installation and on existing systems at the time that they are upgraded.
3) Submittal of proposed backflow prevention devices to the administrative authority does not relieve the designer or sprinkler contractor of the responsibility of submitting plans, including backflow prevention devices, to the fire marshal for approval.
h.) Registration of backflow prevention assembly technician. A backflow prevention assembly technician registered by the State of Iowa shall include his or her registration number on all correspondence and forms required by or associated with this section.
i.) Registered backflow prevention assembly technician non-compliance.
1) The registration of a technician may be revoked or suspended for a period of up to two years for non- compliance with this section.
2) Any of the following conditions constitute non-compliance:
i. Improper testing or repair of backflow prevention assemblies.
ii. Improper reporting of the results of testing or of repairs made to backflow prevention assemblies.
iii. Failure to meet registration requirements.
iv. Related unethical practices.
j.) Installation of backflow prevention assemblies.
1) The required backflow prevention assemblies for containment shall be installed in horizontal plumbing immediately following the meter or as close to that location as deemed practical by the administrative authority. In any case, it shall be located upstream from any branch piping. Installation at this point does not eliminate the responsibility of the customer to protect the water supply system from containment or pollution between the backflow prevention assembly and the water main.
i. Reduced pressure principle backflow prevention assemblies shall be installed so as to be protected from flooding.
ii. Reduced pressure principle backflow prevention assemblies shall not be installed in underground vaults or pits.
iii. All backflow prevention assemblies shall be protected from freezing. Those devices used for seasonal services may be removed in lieu of being protected from freezing; however, the devices must be reinstalled and tested by a registered backflow prevention assembly technician prior to service being reactivated.
iv. If hot water is used within the water system, thermal expansion shall be provided for when installing a backflow prevention assembly for containment.
v. Provisions shall be made to convey the discharge of water from reduced pressure principle backflow prevention assemblies to a suitable drain.
vi. No backflow prevention assemblies shall be installed in a place where it would create a safety hazard, such as but not limited to over an electrical panel, or above ceiling level.
vii. If interruption of water service during testing and repair of backflow prevention assemblies for containment is unacceptable to the customer, another backflow prevention assembly, sized to handle the temporary water flow need during the time of test or repair, should be installed in parallel piping.
viii. All backflow prevention assemblies shall be installed so that they are accessible for testing as stated in section 1003.
ix. All shutoff valves shall conform to the current edition of the Manual of Cross Connection Control (University of Southern California) requirements for either ball or resilient seat gate valves at the time of installation. Ball valves shall be used on assemblies installed in piping two inches and smaller and resilient seat gate valves on assemblies installed in piping larger than two inches.
k.) Testing of backflow prevention assemblies.
1) Testing of backflow prevention assemblies shall be performed by a registered backflow prevention assembly technician. The costs of tests required in the following paragraph b shall be borne by the customer.
2) Backflow prevention assemblies shall be tested upon installation and tested and inspected at least annually.
3) Backflow prevention assemblies that are in place, but have been out of operation for more than three months, shall be tested before being put back into operation. Backflow prevention assemblies used in seasonal applications shall be tested before being put into operation each season.
4) Any backflow prevention assembly that fails a periodic test shall be repaired or replaced. When water service has been terminated for non-compliance, the backflow prevention assembly shall be repaired or replaced prior to the resumption of water service. Backflow prevention assemblies shall be retested by a registered backflow prevention assembly technician immediately after repair or replacement.
5) The administrative authority may require backflow prevention assemblies to be tested at any time in addition to the annual testing requirement.
6) The registered backflow prevention assembly technician shall report in writing the successful test of a backflow prevention assembly to the customer and to the administrative authority within 15 days of the test.
7) The administrative authority may require, at its own cost, additional tests of individual backflow prevention assemblies as it shall deem necessary to verify test procedures and results.
l.) Repair of backflow prevention assemblies.
1) All repairs to backflow prevention assemblies shall be performed by registered backflow prevention assembly technicians.
2) The registered backflow prevention assembly technician shall not change the design, material, or operational characteristics of a backflow prevention assembly during repair or maintenance, and shall use only original manufacturer replacement parts.
3) The registered backflow prevention assembly technician shall report in writing the repair of a backflow prevention assembly to the customer and to the administrative authority within 15 days of the repair. The report shall include the list of materials or replacement parts used.
4) Any time fire services are discontinued for a period of time longer than necessary to test the device, the tester is required to notify the fire marshal’s office that the fire services are shut off for repairs.
m.) Customer non-compliance.
1) The water service may be discontinued in the case of non-compliance with section 1003A. Non- compliance includes, but is not limited to, the following:
i. Refusal to allow the administrative authority access to the property to inspect for cross connections.
ii. Removal of a backflow prevention assembly that has been required by the administrative authority.
iii. Bypassing of a backflow prevention assembly that has been required by the administrative authority.
iv. Providing inadequate backflow prevention when cross connections exist.
v. Failure to install a backflow prevention assembly that has been required by the administrative authority.
vi. Failure to test and/or properly repair a backflow prevention assembly as required by the administrative authority.
vii. Failure to comply with the requirements of this section.
n.) In addition to any other remedy provided, a violation of this section is a municipal infraction, punishable by a fine of $100.00 for the first offense and $200.00 for each offense thereafter, or the city may seek other appropriate relief to abate the violation.
(2013 Code, § 14-77) (Ord. 14375, passed 3-23-1992; Ord. 14515, passed 2-27-1995; Ord. 14536, passed 4-8-1996; Ord. 14647, passed 5-8-2000; Ord. 14900, passed 6-11-2012)