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HomeMy WebLinkAboutAgenda Report - March 19, 1986 (103)CITY Comm. YE -PING MARCH 19, 1986 CROSS- )ONNi]CTION CUIML ORDINANCE. ORD. NO. 1378 INTRDD= Council was apprised that the Public Works Departmc:,t's Water/Wastewater Division, over the past six years, has ,SCC -24 (b) investigated several complaints relating to discolored OC -SI (a) water and has received taste and odor complaints from hundreds of citizens in ccmwrcial and industrial areas of Lodi. The conclusion of most all investigations showed the problems to be a result of blackflow of on-site- contaminates n-sitecontaminates into the City's water system for cross - connections. These problems, together with occasional rises in bacteria counts in the water system which is sampled on a weekly basis, have been eliminated when the proper backflow device was installed on specific commercial and industrial water services. The California State Health Department has now requested that the City of Lodi formally adopt an ordinance relating to Cross -Connection Control. Ordinance No. 1378 - entitled, "lin Ordinance of the City Council of the City of Lodi Establishing and Providing the Regulation of Cross Connections to the City's Potable water System" was introduced by the Council. CIT' OF t®®I COUNCIL COMMUNICATION PUBLIC WORKS DEPARTMENT MEMORANDUM, City of Lodi, Public Works Department TO: City Manager City Council FROM: Public Works Director DATE: February 12, 1986 SUBJECT: Cross- Connection Control Ordinance The Public Works Department's Water/Wastewater Division over the past six years has investigated several complaints relating to discolored water, and has re- ceived taste and odor complaints from hundreds of citizens in commercial and industrial areas of Lodi. The conclusion of most all investigations showed the problems to be a result of backfio•.j of on-site contaminates into the City's water system from cross -connection:. These problems, together with occasional rises in bacterid counts it, the water system, which is sampled on a weekly basis, have been eliminated when the proper backflow device was installed on specific commercial and industrial water services. The California State Health Department has now requested that the City of Lodi formally adopt an ordinance relating to Cross -Connection Control. Therefore, the attached ordinance draft is presented to you for your comments and consideration. The ordinance requirements are in Title 17 of the California Administrative Code. The City's Water/Wastewater Division has worked with the requirements of California's Title 17 for over six years, however, we have found the State wording is lengthy, cumbersome, and often confusing to industrial and commercial customers and to our own staff. The proposed ordinance is a condensed version of Title 17 and has been approved by the California State Health Department. It is, therefore, recommended that this type of ordinance be adopted in order to better prof ct our wate,• system and the citizens of Lodi. ck Ronsko ublic Works Director At ment cc: Water/Wastewater Superintendent California State Health Department JLR/FEF/eeh ORDINANCE NO. AN ORDINANCE OF THE CITY OF LODI ESTABLISHING AND PROVIDING FOR THE REGULATION OF CROSS CONNECTIONS TO THE CITY'S POTABLE WATER SYSTEM ARTICLE I. GENERAL The City Council of the City of L&di DOES ORDAIN as follows: Sec. — -I Purpose The purpose of this ordinance is (I) to protect the public potable water system against actual or potential cross connections by isolating within the premises, contamination or pollution that may occur because of some undiscovered or unauthorized cross connection on the premises; (2) to eliminate existing connections between drinking water systems and other sources of water that are not approved as safe and potable for human consumption; (3) to eliminate cross connections between drinking water systems and other sources of water or process water used for any purpose which may jeopardize the safety of the drinking mater supply; (4) and to prevent the making of cross connections in the future. The latest edition of the "Manual of Cross Connection Control Procedures and Practices" prepared by the State of California, Department of Health Services is also made part of these regulations. These regulations are adopted in accordance with Title 17 entitled "Regulations Relating to Cross Connections" of the State of California Administrative Code. Sec. -2 Definitions Unless otherwise defined herein, terms shall be as adopted in the latest edition of "Manual of Cross Connection Control Procedures and Practices" prepared by the State of California, Department of Health Services. I. Approved Water Supply. Any potable water supply approved by the health agencies of the State of California, San Joaquin County, and the City of Lodi. - I - 2. Auxiliary Water Supply. Any water supply on or available to a premise other than the public potable water supplied by the City of Lodi. 3. Backflow. The flow of water or any other substance into the distribution pipes of a potable water supply system from any other source than the public water system. Backflow can be caused by either backpressure or backsiphonage. 4. Backflow Prevention Device. A device or means, which has been approved by the City of Lodi, deLigned to prevent backflow. 5. City. The City of Lodi, San Joaquin County, California. 6. Consumer or User. The owner or operator of a private water system having a service from a public water system. 7. Contamination. An impairment of the quality of the potable water system by any foreign substance. 8. Cross Connection. An unprotected actual or potential connection between a potable water system and any source or system containing unapproved water or any other substance. 9. Hazard, Degree of. An evaluation of the actual or potential risk to public health and the adverse effect of the hazard upon the potable water system as determined by the City of Lodi. 10. Multiple Service. Two or more water service connections at a single premise. 11. Premise. A parcel of real estate including any improvements thereon which is determined by the City to be a single user for purposes of receiving, using, and paying for service. -2- 12. Public Water System. The potable water supply system operated by the City of Lodi from the City wells to the consumers' service connections. 13. Service Connection. The terminal end of a service from the public water system, i.e. where the City loses jurisdiction and sanitary control at its point of delivery to the consumer's water system. ARTICLE II. REGULATIONS Sec. -3 Where Protection is Required 1. Each service connection to premises having an auxiliary water supply shall be protected against backflow into the public water system. 2. Each service connection to premises on which any substance is or may be handled such that entry into the on-site water system is possible shall be protected against backflow of the substance into the public water system. This shall include the handling of process waters and waters originating from the public water system which have been subject to deterioration in quality. 3. Each service connection to any premises that have internal cross connections unless such cross connections are abated to the satisfaction of the City. Sec. -4 Type of Protection The protective device required shall depend on the degree of hazard. In determining the degree of hazard and type of backflow prevention device to be required, the following criteria shall be used: 1. At the service connection to any premises where there is an auxiliary water supply handled in a separate piping system with no known or easily established cross connections, the public water supply shall be protected by a double check valve assembly. - 3 - 2. At tv.e service connection to ai.y premises where there is an auxiliary - wat,2r supply where cross connections are known to exist which cannot be practically eliminated, or where the auxiliary water supply may be contaminated, the public water system shall be protected by an air gap separation or a reduced pressure principle backflow device. 3. At the ser -.ice connection to any premises on which a substance that would be objectionable but not hazardous to health is handled in such a manner that may permit its entry into the water system, the public water system shall be protected by a double check valve assembly. 4. At the service connection to any premises on which any meterial dangerous to health, or toxic substances handled in toxic concentrations, is handled in such a manner that may permit its entry into the on-site water system, the public water system shall be protected by an air gap separation or a reduced pressure principle backflow device. 5. At the service connection to any sewage treatment plant, sewage pumping station, storm water pumps, or reclaimed water reuse areas, the public water system shall be protected by an air gap separation or a reduced pressure principle backflow device. 6. At the service connection to hospitals, medical and dental facilities, mortuaries, food or beverage processing facilities, chemical facilities, water systems with cherical additives, irrigation systems, laundries, laboratories, pet t,nspitals metal processing facilities, petroleum or gas handling facilities, plating facilities, rubber facilities, cement or concrete mixing facilities, or other premises where the City determines that a special hazard exists, the public water system shall be protected by a backflow prevention device as determined by the degree of hazard. 7. At all service connections to premises having a multiple service with no known cross connections or special hazards, the public water system may be required to be protected by double check valves, and - 4 - where there may be cross connections or special hazards, the public water system shall be protected by reduced pressure principle devices. 8. Where a booster pump is installed on the service to any premise, such pump shall be equipped with regulating devices such that the inlet pressure will not fall below 10 psig. 9. New commercial/industrial shell buildings with unknown future uses shall leave sufficient space (one foot per diameter -inch of service, plus one foot) after the meter box for possible future installation of a backflow prevention device. Sec. -5 Responsibilities 1. It is the responsibility of the City to make the determination that a service connection, or the handling of substances within the premises served, constitutes a hazard to the public water system and to determine the degree of hazard and establish the requirements for protection. 2. It is the responsibility of the consumer, at his own expense, to install, maintain, and operate approved backflow prevention devices as directed by the City. The consumer shall be responsible to have tests made at least once a year, or more often in those instances where successive tests indicate defective operation of the backflow prevention devices, by an approved backflow prevention device tester. The records of such tests, repairs, or overhauls shall be kept and copies submitted to the City. It is also the responsibility of the consumer to prevent cross connections, or pollutants or contaminates from entering their potable water system(s). The consumer's responsibility begins at the service connection and shall include any and all on -premise water distribution piping. The consumer shall allow the Public Works Director or his agents ready access at all reasonable times to all parts of the premises for the purposes of inspection of either the consum,,r's water system or backflow prevention device(s). - 5 - Sec. -6. Approval of Backflow Prevention Device Testers 1. The City shall maintain in a list of approved Backflow Device Testers. No person shall test and/or make reports of tests of backflow prevention devices unless the person's qualifications have been established to the satisfaction of the City. 2. Every person desiring to qualify as a Backflow Prevention Device Tester shall make application to the Public Works Department of the City, and shall have a current City of Lodi Business license. 3. The City will evaluate the applicant's qualifications as a Backflow Prevention Device Tester. Any or all of the following may be considered in approving a Tester. a. Certification as a Backflow Prevention Device Tester with the American Water Works Association (AWWA). b. Completion of approved courses in Backflow Prevention Device Testing. c. Experience in Backflow Prevention Device Testing. d. Oral and/or performance evaluations conducted by the City. 4. Approval will be revoked frcm any tester who fails to comply with any of these regulations or falsifies inspection or maintenance reports. Testers will not be eligible for reapproval for two years. ARTICLE III. ENFORCEMENT Sec. -7 Discontinuance of Service The City shall have the authority to discontinue water service to any premises where: 1) unprotected cross connections are found to exist; 2) a backflow prevention device has been altered, bypassed, or removed; -6- 3) a backflow prevention device has not been properly tested, maintained, or repaired; 4) the consumer has not taken proper action as determined by the City to be necessary to protect the potable water supply. The water service is to remain discontinued until such corrections are made. The consumer will be charged for the turning off and on of the water service an amount to be determined by the City. ARTICLE IV. SEVERABILITY Sec. - 8 Where these regulations differ with State of California or San Joaquin County regulations the more stringent shall apply. If any provisions of these regulations or the application to any person or circumstances is held invalid, the remainder of the regulations or the application of such provisions to other persons or circumstances shall not be affected. SECTION All ordinances and parts of ordinances in conflict herewith are repealed insofar as such conflict may exist. SECTION This ordinance shall be published one time in the "Lodi ''.!ws Sentinel", a daily newspaper of general circulation printed and published in the City of Lodi and shall be in force and take effect thirty days from and after its passage and approval. Approved this day of Name - 7 - MAYOR Attest: ALICE M. REIMCHE City Clerk State of California County of San Joaquin, ss. I, Alice M. Reimche, City Clerk of the City of Lodi, do hereby certify that Ordinance No. was introduced at a regular meeting of the City Council of the City of Lodi held and was thereafter passed, adopted and ordered to print at a regular meeting of said Council held by the following vote: Ayes: Council Members - Noes: Council Members - Absent: Council Members - Abstain: Council Members - I further certify that Ordinance No. was approved and signed by the Mayor on the date of its passage and the same has been published pursuant to law. ALICE M. REIMCHE City Clerk Approved as to form RONALD M. STEIN City Attorney