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HomeMy WebLinkAbout4062-12/12/1994ORDINANCE NO. 4062 AN ORDINANCE AMENDING THE 1993 CODE OF ORDINANCES OF THE CITY OF WATERLOO, IOWA, BY ADDING SECTION 30-16.1, CROSS CONNECTION CONTROL -CONTAINMENT PROVISIONS, TO CHAPTER 30, PLUMBING. BE IT ORDAINED by the City Council of the City of Waterloo, Iowa: Section 1. That Section 30-16.1, Cross Connection Control - Containment Provisions, is hereby added to Chapter 30, Plumbing, of the 1993 Code of Ordinances of the City of Waterloo, Iowa, as follows: Sec. 30-16.1. Cross connection control -containment provisions. Section 1003A, Cross Connection Control -Containment Provisions, is hereby added to the Uniform Plumbing Code as follows: Section 1003A. Cross Connection Control -Containment Provisions. Purpose. The purpose is to safeguard potable water supplies by preventing backflow into public water systems. (a) Definitions. The following definitions shall apply to Section 1003A of the Waterloo Plumbing Code. For the purpose of this Section, these definitions supersede definitions given elsewhere in this code. 1. Administrative Authority. For the purpose of this section, the Administrative Authority shall be the Waterloo Water Works and Plumbing Division of the Waterloo Building Department. 2. Air Gap Water Distribution. An Air Gap Water Distribution is the unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood level rim of any tank, vat, or fixture. 3. 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. 4. 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 Laboratory (UL), and the requirement of the Fire Code and the Building Code of the City of Waterloo, in addition to the requirements of paragraph a(3). Devices sized smaller than 2 1/2" which have not been listed by Underwriters Laboratory (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 of Waterloo. 5. 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. EUS K 31'3: P,1,.r,G 120 Ordinance No. 4062 Page 2 6. Containment. A method of backflow prevention which requires the installation of a backflow prevention assembly at the water service entrance. 7. Contamination. An impairment of the quality of the potable water which creates an actual hazard to the public health through poisoning or through the spread of disease by sewage, industrial fluids, or waste, also defined as high hazard. 8. 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. 9. Customer. The owner, operator, or occupant of a building or property which 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. 10. Degree of hazard. The rating of a cross connection or water service which indicates if it has the potential to cause contamination or pollution. 11. 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. 12. 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. 13. 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. 14. 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 adversely and unreasonably affect the aesthetic qualities of such potable waters for domestic use. 15. Multiple Family Residential Units. A multiple family resident unit shall mean a building designed to be used as residential occupancy for multiple family units, each having separate plumbing facilities and not more than two levels of occupancy. 16. Pollution. An impairment of the quality of the 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. Also defined as low hazard. 17. Potable water. Potable water is water which is satisfactory for drinking, culinary, and domestic purposes, and meets the requirements of the health authority having jurisdiction. 18. Private owned customer water system piping. Water service line pipes and plumbing fixtures connected to the public water system of the City of Waterloo which are extended to the customer's property and into the customer's building EOCK 311 PAGE 121 Ordinance No. 4062 Page 3 for service to the customer, regulatory control of which is defined in the city plumbing code and Waterloo Water Works regulations. 19. 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. 20. 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. 21. Single family dwelling. A single family dwelling shall mean a building designed to be used as a home by the owner of such building, and shall be the only dwelling located on a parcel of ground with the usual accessory buildings. 22. Thermal expansion. Volumetric increase of water due to heating resulting in increased pressure in a closed system. 23. 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 purpose of Section 1003A of the Waterloo Plumbing Code only, the Administrative Authority shall be the Waterloo Water Works and Plumbing Division of the Waterloo Building Department. 2. The Administrative Authority 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 may collect fees for the administration of this program. Fees shall be established by resolution of the Waterloo City Council. c) New Water Service. 1. Plans shall be submitted to the Administrative Authority to review on all new water services to determine size and degree of hazard. 2. The Administrative Authority shall determine if any type of backflow prevention assembly is required for containment based on the degree of hazard. 3. The Administrative Authority shall require, where necessary, the installation of the appropriate backflow prevention assembly for containment before the initiation of water service. BOCK 31 z. PAGE 122 Ordinance No. 4062 Page 4 (d) Existing Water Services. 1. Upgrades of existing water services shall be treated as new water services for the purpose of this section. 2. The Administrative Authority shall publish and make available to each customer a copy of the standards used to determine the degree of hazard. 3. After publication of the standards, the Administrative Authority shall notify customers whose premises are classified as single family residential or multiple family residential, having five units or less and not more than two levels of occupancy, of the provisions of this ordinance and compliance therewith. 4. Within six (6) months after publication of the standards, customers whose premises are not classified as single family residential shall complete and return to the Administrative Authority a cross -connection hazard survey to be usea to determine the type of containment device. 5. The Administrative Authority shall, on the basis of information received from customers or gathered through on - premise investigations or surveys, notify the customer that a method of backflow prevention is required. The customer shall prepare a written plan for review and approval by the Administrative Authority to install a device or devices for containment and/or isolation based on the degree of hazard. 6. Within the time frame specified in writing by the Administrative Authority, the customer shall install a backflow prevention assembly as approved by the Administrative Authority. 7. For existing water services, the Administrative Authority may inspect the premises to determine the degree of hazard. When the high hazard cross connections are found, the Administrative Authority shall, at its sole discretion: a. develop a schedule of compliance which the customer shall follow or b. terminate the water service until a backflow prevention assembly for containment required by the Administrative Authority has been installed. 8. 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 tor 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. BOCK 314PAGE 1(J Ordinance No. 4062 Page 5 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 on the approved form within fifteen (15) days after testing and/or repairs are completed. 4. In the event of a backflow incident, the customer shall immediately notify the local water supplier, the Waterloo Water Works. (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. 3. Every water service which is required to install a backflow prevention assembly at point of entry will be required to follow Section 1007(c) of the Uniform Plumbing Code at time of installation. 4. Exception. Residential - Single family dwelling to be done by isolation unless specified by Administrative Authority. (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 which the Administrative Authority determines to have any of the following: a. Direct connections from public water mains with an auxiliary water supply on or available to the premises for pumper connection. b. Interconnections with auxiliary supplies such as reservoirs, rivers, ponds, wells, mills, or other industrial water systems. c. Use of antifreezes or other additives in the fire protection system. d. 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. e. Any other facility, connection, or condition which may cause contamination. 2. A double check valve assembly shall 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 EOCY, 3...1 PAGE 124 Ordinance No. 4062 Page 6 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 ordinance. (i) Registered Backflow Prevention Assembly Technician Noncompliance. 1. The registration of a technician may be revoked or suspended for a period of up to two years for noncompliance with this ordinance. 2. Any of the following conditions constitute noncompliance: a. Improper testing or repair of backflow prevention assemblies. b. Improper reporting of the results of testing or of repairs made to backflow prevention assemblies. c. Failure to meet registration requirements. d. Related unethical practices. (j) Installation of Backflow Prevention Assemblies. 1. Installation of backflow prevention assemblies shall be made by a licensed and bonded plumbing contractor of the City of Waterloo with proper permits. 2. 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. 3. Reduced pressure principle backflow prevention assemblies shall be installed so as to be protected from flooding. 4. Reduced pressure principle backflow prevention assemblies shall not be installed in underground vaults or pits. 5. 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. 6. If hot water is used within the water system, thermal expansion shall be provided for when installing a backflow prevention assembly for containment. EGC 311 PAGE 125 Ordinance No. 4062 Page 7 7. Provisions shall be made to convey the discharge of water from reduced pressure principle backflow prevention assemblies to a suitable drain. 8. 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. 9. 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. 10. All backflow prevention assemblies shall be installed so that they are accessible for testing as stated in Section 1003A of the Uniform Plumbing Code. 11. All shut-off valves conform with 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 test required in the following Paragraphs 2 through 5 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 which 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 which fails a periodic test shall be repaired or replaced. When water service has been terminated for noncompliance, 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 the successful test of a backflow prevention assembly to the customer and to the Administrative Authority on the form provided by the Administrative Authority within fifteen (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. (1) Repair of Backflow Prevention Assemblies. COWS 314 PAGE 126 Ordinance No. 4062 Page 8 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 the repair of a backflow prevention assembly to the customer and to the Administrative Authority on the form provided by the Administrative Authority within fifteen (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 Noncompliance. The water service may be discontinued in the case of noncompliance with Section 1003A of the Waterloo Plumbing Code. Noncompliance includes but is not limited to the following: 1. Refusal to allow the Administrative Authority access to the property to inspect for cross connections. 2. Removal of a backflow prevention assembly which has been required by the Administrative Authority. 3. Bypassing of a backflow prevention assembly which has been required by the Administrative Authority. 4. Providing inadequate backflow prevention when cross connections exist. 5. Failure to install a backflow prevention assembly which has been required by the Administrative Authority. 6. Failure to test and/or properly repair a backflow prevention assembly as required by the Administrative Authority. 7. Failure to comply with the requirements of this ordinance. Section 2. Separation of Provisions. It is the intention of the council that each section, paragraph, sentence, clause, and provision of this ordinance is separable and if any provision is held unconstitutional or invalid for any reason, such decision shall not affect the remainder of this ordinance nor any part thereof other than that affected by such decision. Section 3. All ordinances or parts of ordinances in conflict herewith are repealed. INTRODUCED: PASSED 1ST CONSIDERATION: PASSED 2ND CONSIDERATION: PASSED 3RD CONSIDERATION: December 12, 1994 December 12, 1994 December 12, 1994 December 12, 1994 SOCK 3t127 Ordinance No. 4062 Page 9 PASSED AND ADOPTED by the City Council of the City of \•raterloo, Iowa, on the 12th day of December, 1994, and approved by the Mayor on the 14th day of December, 1994. ATTEST: Susan Fangman, Cidly Clerk CERTIFICATE I, Susan Fangman, City Clerk of the City of Waterloo, Iowa, do hereby certify that the preceding is a true and complete copy of Ordinance No. 4062, as passed and adopted by the Council of the City of Waterloo, Iowa, on the 12th day of December, 1994. 1994. SEAL Witness my hand and seal of office this 14th day of December, Susan Fangman, Cit ' Clerk fisc ND X 11036 BLACK HAWK COUNTY IOWA:SS Filed for record Jan 11 1995, at 12:30 P M, and recorded in e Misc Book 314 Page 120 FEE 1-45.00 / Recorder Deputy o City of Waterloo FORM 1 1T. STATE OF IOWA, rt, S.C. W.Va. C. 28 14 81 66 .01 cdy 24 14 rn 10 -12 sn 54 40 cdy 61 47 cdy 41 37 .04 rn 56 34 cdy iss r!agstatf Grand Rapic Great Falls Greensboro, Hartford Spc Helena Honolulu Houston __ DIlge1uaano uniejadwal SO 4- HOIH ;Sa,H e moo lotivo rtic J. ich 0 pp er, 'au lit it n tt be suoo aoinap uoquessA Moiploeq Algwasse uoquanaid Mogpoeq l!ou!Jd ainssaid peonpad '81, 'suousinbai svoM lalem Jalem pus apoo auigwnid Apo heptad 017 Mau :146iN •Auuns j lsout ascm.ta -glo `2"oJ �uiu.toy� Aepsan4.L I do solemnly swear that the annexed copy of legal Waterloo, City of Ordinance #4062 — Cross connection control,— containment provisions to Chapter 30 plumbing notice was published in the Waterloo -Cedar Falls Courier, a daily newspaper printed in Waterloo, Black Hawk County, Iowa, once commencing on the day of January 11th 19 95 in the name of said newspaper, and that the annexed rate of advertised is the regular legal rate of said 0£ .1Bell :M01 ut�z �utz00.1J jo sagolEd glim XOJ amp Jo sgaxd I ;461uu1 newspaper, and that the following is a correct bill for publishing said notice. 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