The provisions of this chapter apply to permits for the making or causing to be made in any street, of excavations, and for the placing, constructing, testing, repairing, changing, monitoring, removing or abandoning of facilities or encroachments. The provisions of this chapter also apply to written emergency plans for owners or operators of pipelines used to convey toxic, corrosive or flammable liquids and mandatory membership in a one-call notification system.
(Prior code § 7106.01)
When a one-call notification system is operational in the incorporated territory of the city, no person shall maintain and operate a pipeline designed to carry hazardous substances below the surface of a street unless such person is a member of the system. Such person shall provide to the city engineer such proof as required that the person is a member of the system in the city. For the purpose of this section, electrical facilities shall not be considered hazardous.
(Prior code § 7106.02)
A. 
Each application for an excavation or encroachment permit shall file with the application a plat in quintuplicate showing the streets in which the proposed excavation, facility or encroachment will be placed, together with the exact location and dimensions of the proposed excavations, or the specifications and characteristics of the facility or encroachment, together with any other details which the city engineer requires.
B. 
When excavations are made for service connections or for the location of trouble in conduits, cable or pipe, or for making repairs thereto, the city engineer may waive the filing of a plat. Approved plats shall become public records.
(Prior code § 7106.03)
The city engineer shall require all the lines for the transmission and distribution of standard television or audio signals to be placed underground in streets when all power and telephone lines are underground, and shall also require underground installation in all instances except where the applicant provides satisfactory proof of permission to use existing pole lines or where the city engineer finds that the remoteness of the area or other conditions render underground installation impractical or infeasible.
(Prior code § 7106.14)
The following minimum depths of cover below existing, finished or proposed grade shall be required for all underground pipelines within the roadway area:
A. 
Twenty-four inches for service pipelines;
B. 
Thirty-six inches for all pipelines in streets, except pipelines designed to carry hazardous substances and service pipelines;
C. 
Forty-two inches in streets for pipelines designed to carry hazardous substances such as, but not limited to, gasoline, fuel oil, butane, propane or chemicals;
D. 
Forty-two inches for electric and natural gas facilities in streets.
(Prior code § 7106.04)
Block valves shall be installed on each new main line at locations along the pipeline system that will minimize damage from accidental product discharge. Such location shall be appropriate for the terrain and the population density of the area.
(Prior code § 7106.06)
A. 
As provided in the American National Standard Institute's Code for Pressure Piping, Liquid Petroleum Transportation Piping Systems (ANSI B 31.4) in its latest revision, a cathodic protection system shall be installed for all new ferrous pipelines used to carry toxic, corrosive or flammable substances other than utility gases, in order to mitigate corrosion deterioration that might result in structural failure. The cathodic protection system for all new ferrous pipelines carrying utility gases shall be installed in accordance with General Order No. 112-C of the State Public Utilities Commission.
B. 
A test procedure shall be developed by the owner or operator to determine whether adequate cathodic protection has been achieved, and submitted to the city engineer for approval. Reports of cathodic protection evaluation in accordance with the approval procedure shall be made available annually for review by the city engineer.
(Prior code § 7106.07)
A. 
After initial installation under this chapter of any pipeline used or to be used to carry toxic, corrosive or flammable liquids, such pipelines shall be subject to a hydrostatic pressure test as provided herein before it is placed in operation. The duration of the hydrostatic test for this purpose shall not be less than twenty-four hours.
B. 
After repair or replacement of any pipeline used or to be used to carry toxic, corrosive or flammable liquids, made necessary to repair leaks or breaks, or replacements made necessary for changes required by improvements within the roadway, the affected portion of the pipeline shall be subject to a hydrostatic pressure test as provided herein before being placed in operation. The duration of the hydrostatic test for this purpose shall be not less than twenty-four hours. However, no such test is required for a minor repair which does not require removal of the pipeline from operation. If the affected section is isolated and tested hydrostatically, pressure test of the tie-in welds is not required; however, tie-in welds shall be examined by radiographic means.
C. 
No pipeline subject to Division I and Chapters 12.36 and 12.40 of this title, used or to be used to carry toxic, corrosive or flammable liquids and over ten years of age, shall be operated beyond the successive ensuing twelve-month period of time unless retested annually by a hydrostatic pressure test or other test means acceptable to the city engineer. The duration of the periodic test for this purpose shall not be less than four hours.
D. 
Each pressure test, either initial or retest, shall be in accordance with the American National Standard Institute's Code for Pressure Piping, Liquid Petroleum Transportation Piping Systems (ANSI B 31.4), in its latest revision. The city engineer may authorize the use of a liquid petroleum that does not vaporize rapidly (i.e., flashpoint over one hundred fifty degrees Fahrenheit or sixty-six degrees Centigrade) as a test medium. Pressure tests after initial installation of pipelines and before they are placed in operation shall show no unexplained loss. Annual or retest pressure tests shall not show an hourly loss, for each section of the pipeline under test at the time, in excess of either ten gallons or the sum of one gallon and an amount computed at a rate in gallons per mile equivalent to one-tenth of the nominal internal diameter of the pipe.
E. 
The city engineer may grant administrative waiver or other relief to an owner or operator under Division I and Chapters 12.36 and 12.40 of this title as to the periodic pressure testing of any pipelines, as herein provided, if the owner or operator can demonstrate that such testing will cause the unreasonable unscheduled shutdown of plants, terminals, refineries or other facilities of which such pipelines constitute an integral part.
F. 
In addition to the foregoing requirements, any pipeline authorized by Division I and Chapters 12.36 and 12.40 and subject to pressure testing shall be subject to a pressure test by the owner or operator at any time as may be required by the city engineer in the interest of public safety.
G. 
Within thirty days after completion of any test made pursuant to the provisions of Division I and Chapters 12.36 and 12.40 of this title, the owner or operator shall submit a certified report of such test for the city engineer's review. The report shall show the date of test, description of the pipeline tested identified with respect to city streets, and the test data. The report shall be sufficient in detail to permit analysis of test results and determination of compliance with the applicable provisions of Division I and Chapters 12.36 and 12.40, or any other applicable ordinance, rule or regulation. The report shall also contain any other test information as may be specifically requested by the city engineer.
(Prior code § 7106.05)
A. 
Each owner or operator of a pipe-line used or to be used to convey toxic, corrosive or flammable liquids shall have a written emergency plan approved and on file with the city's fire marshal. The plan shall be in accordance with the American National Standard Institute's Code for Pressure Piping, Liquid Petroleum Transportation Piping Systems (ANSI B 31.4), in its latest revision.
B. 
The plan shall include, but not be limited to, the following elements:
1. 
A "liaison" element for intercommunications between public agencies and pipeline owners or operators, to provide for prompt, coordinated remedial action, and the dissemination of information as to the location and ownership identification of pipelines, based on the best available records and plans;
2. 
A "spill contingency" element, to limit the extent of accidental product discharge, by which pipeline owners or operators shall involve themselves in a cooperative pipeline leak-notification emergency action system;
3. 
A "leak detection" element by which the pipeline owners or operators can monitor the flow of their product and can divert, reduce or stop the flow of such product at the first indication of a product leak;
4. 
A "first-on-the-scene emergency containment" element, in cooperation with other pipeline owners or operators, to be utilized until arrival of the affected pipeline owner's or operator's personnel. First-on-the-scene cost shall be borne by the owner or operator of the facility, and shall be reimbursed to the organization effecting the emergency containment.
(Prior code § 7106.08)
A permittee shall refill an excavation in the manner which is satisfactory to the city engineer, and is most effective to accomplish thorough consolidation and enable the street to be restored to a condition equivalent to that in which it was prior to the excavation.
(Prior code § 7106.10)
Immediately upon completion of the work necessitating the excavation, facility or encroachment permitted by any permit issued, the permittee shall promptly and in a workmanlike manner restore the area affected by his or her activity to a condition satisfactory to the city engineer.
(Prior code § 7106.09)
Upon completion of the refilling of the excavation, or completion of the cut or fill, the permittee shall so notify the city engineer in writing on a form prescribed by the city engineer. Whenever a plat was required by Section 12.20.030 and there were substantial deviations approved during the work from the dimensions or locations as shown on the plat, the permittee shall transmit to the city engineer a concise as-built plat upon completion of his or her work, showing the accurate location, depth and size of the facility or encroachment so laid, removed or abandoned.
(Prior code § 7106.11)
Every application shall contain a statement, signed by the applicant, that if any facility or encroachment placed in the excavation, or the facility or encroachment for which a permit is issued, interferes with the future use of the street by the general public, then the applicant and his or her successors or assigns will, at his or her own expense, remove or relocate to a location satisfactory to the city engineer such facility or encroachment. The statement signed by the applicant will not apply in cases when the applicant has an easement superior to the street easement at the time of application and can furnish evidence, when required, of such superior easement.
(Prior code § 7106.12)
A. 
Each applicant for a permit to abandon in place or remove any facility or encroachment in the street shall do so under terms and conditions prescribed by the city engineer. The permit application shall include a plat or other suitable means describing the facility or encroachment to be abandoned or removed, and indicating its exact location. Permission to abandon a facility or encroachment without removing shall be subject to removal within one year after the effective date of the abandonment if the facility or encroachment may interfere with a present or future public improvement. If it is determined that the facility or encroachment should be removed, the permittee or its successor in interest shall remove it at its expense, or pay the city for the cost of such removal. The permittee shall leave any abandoned facility or encroachment in a safe condition.
B. 
In addition to the foregoing, abandonment in place of a pipeline used to convey toxic, corrosive or flammable liquids will be subject to the following requirements. The pipeline shall be thoroughly purged of liquids and vapors and filled with an inert material that will remain in a solid or semisolid state if any portion of the pipeline is cut or removed in the future. The permittee shall file a certificate with the city engineer that the requirements of this section have been met, and the facility has been left in a safe condition.
(Prior code § 7106.16; Ord. 699 § 2, 1985)
The city engineer may establish such requirements as he or she may find necessary to apply to the work to be done by any person in order to prevent interference with users of the street and with holders of other permits.
(Prior code § 7106.15)
Nothing in Division I and Chapters 12.36 and 12.40 prohibits any person from maintaining, by virtue of any law, ordinance or permit, any facility or encroachment in any street, or from making such excavation as may be necessary for the preservation of life or property if the person making such excavation applies for a permit not later than the next business day.
(Prior code § 7106.13)