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Earlier editions: 2026-07

Chapter 20 — Streets and Sidewalks

Compton Municipal Code § 20-3 Street Excavations

Compton Municipal Code · 2026-10 edition · updated 2026-10-04 · Compton

Cite as: Compton Municipal Code § 20-3 · Text as of 2026-10-04

§ 20-3.1. Definitions.

[Added by Ord. #1286, § 7300]

As used in this section:

ADMINISTRATIVE AUTHORITY

Shall mean the Street Superintendent.

EXCAVATION

Shall mean any opening in the surface of a public place made in any manner whatsoever, except an opening into a lawful structure below the surface of a public place, the top of which is flush with the adjoining surface and so constructed as to permit frequent openings without injury or damage to the public place.

FACILITY

Shall mean pipe, pipeline, tube, main, service, trap, vent, vault, manhole, meter, gauge, regulator, valve, conduit, wire, tower, pole, pole line, anchor, cable, junction box, transformer, or any other material, structure, or object of any kind or character, whether enumerated herein or not, which is or may be lawfully constructed, left, placed, or maintained in, upon, along, across, under, or over any public place.

PUBLIC PLACE

Shall mean any public place, street, way, alley, sidewalk, park, square, plaza, or any other similar public property owned or controlled by the Administrative Authority and dedicated to public use.

SUBSTRUCTURE

Shall mean any pipe, conduit, duct, tunnel, manhole, vault, buried cable, wire, or any other similar structure located below the surface of any public place.

UTILITY

Shall mean a private company and/or corporation or municipal department engaged in providing a particular service to the general public.

Exceptions & meaning →

§ 20-3.2. Excavation Permit.

[Added by Ord. #1286, § 7300.1]

No person shall make any excavation in, along, or under the surface of any street, or other public place in the City, or dig in, plow up, tear up, fill, cover, disturb, or change any portion of the same, or permit to be constructed, put upon, maintained, or left therein any obstruction or impediment to travel, or pile or place thereon any material without first obtaining a written permit therefor, which permit shall be issued by the Street Superintendent upon compliance by the applicant for the same with the requirements therefor set forth in this section.

Exceptions & meaning →

§ 20-3.3. Application.

[Added by Ord. #1286, § 7300.2]

No excavation permit shall be issued unless a written application (on a form provided by the Administrative Authority) for the issuance of an excavation permit is submitted to the Administrative Authority. The written application shall state the name and address and principal place of business of the applicant, the authority of the applicant to occupy the public place for which the permit is sought, the location and dimensions of the installation or removal, the approximate size of the excavation to be made, the purpose of the facility, and the approximate time which will be required to complete such work, including backfilling such excavation and removing all obstructions, material, and debris. An extension of time may be granted by the Administrative Authority for good and sufficient reasons. The application, when approved and signed by the Administrative Authority, shall constitute a permit. Notwithstanding the provisions of this subsection, the Administrative Authority may, at his discretion, issue a blanket permit to:

a. Public utilities regulated by the Public Utilities Commission of the State;

b. A person holding a franchise from the City; or

c. The Water Department of the City to make excavations not exceeding two feet in width by four feet in length prior to the filing of the application referred to in this subsection; provided, however, an application for such permit shall be filed for each such excavation in not more than 10 days after such excavation.

Exceptions & meaning →

§ 20-3.4. Excavation Permit Fees.

[Added by Ord. #1286, § 7300.3]

A permit fee shall be charged by the Administrative Authority for the issuance of an excavation permit. Such fees shall be in accordance with a schedule thereof from time to time in effect as established by resolution of the Council.

Exceptions & meaning →

§ 20-3.4A. Street Excavation Permit Fees.

[Ord. #1792, § 2; Ord. #1809, § 3]

Basic fee $20
Plus $1 per square yard Plus $1 per square yard
Exceptions & meaning →

§ 20-3.5. Liability Insurance.

[Added by Ord. #1286, § 7300.4; Amended by Ord. #1402]

Prior to the issuance of any permit to perform any work mentioned in this section, the applicant shall also file with the Street Superintendent a certificate of insurance, issued by an insurance carrier which is duly qualified to engage in such insurance business under the laws of the State, insuring the City, as coinsured, against any liability for loss resulting from the prosecution of the work for which an application for a permit has been made in the following amounts: $1,000,000 for injury to any one person arising out of any one occurrence and $1,000,000 for injury to more than one person arising out of any one occurrence and $1,000,000 for property damage arising out of any one occurrence; provided however, such certificate of insurance may be waived by the Administrative Authority for work to be done between the curb and the property line of any street upon satisfactory evidence that the work can be performed without constituting a hazard to the public; and provided, further, that public utilities operating under the supervision of the Public Utilities Commission, public utilities holding a franchise from the City, City departments, and other governmental agencies may be relieved of the obligation of submitting such a certificate of insurance by the Administrative Authority.

Exceptions & meaning →

§ 20-3.6. Cash Deposits or Surety Bonds.

[Added by Ord. #1286, § 7300.6]

a. Special Deposits. The application for an excavation permit to perform excavation work under this section shall be accompanied by a cash deposit, made to the Administrative Authority for deposit with the City Treasurer, in accordance with the adopted rate schedule of the Administrative Authority. In lieu of such cash deposit, the applicant may file with the Administrative Authority a surety bond in such amount as shall be determined by the Administrative Authority and conditioned upon the permittee's compliance with all of the terms and conditions of this section.

b. Purposes. Any special deposit made hereunder shall serve as security for the repair and performance of the work necessary to put the public place in as good a condition as it was prior to the excavation if the permittee fails to make the necessary repairs or to complete the proper refilling of the opening and the excavation work under the excavation permit.

c. Refunds of Special Deposits. Upon the permittee's completion of the work covered by such permit in conformity with this section as determined by the Administrative Authority, 2/3 of such special deposit shall be promptly refunded by the City to the permittee, and the balance shall be refunded by the City to the permittee upon the expiration of a 24 months' period.

d. Use of Deposits. The Administrative Authority may use any or all of any such deposits to pay the cost of any work the Administrative Authority performs to restore or maintain the public place as herein provided in the event the permittee fails to perform such work, in which event the amount refunded to the permittee shall be reduced by the amount thus expended by the Administrative Authority.

e. Public Utility Companies. Where excavations are made by public utility companies operating under a franchise issued by the City, or under the supervision of the Public Utilities Commission, or utilities operated by governmental agencies, a permit may be granted without making such deposit. In such cases the utilities shall be liable for the actual cost of any work required to be done by the Administrative Authority in restoring the area covered by such excavation to as good condition as the same was in before such work was done; provided, however, the Administrative Authority may, in the future, require such deposit from any such utility if a bill rendered in accordance with this subsection remains unpaid 30 days after the date of billing.

f. Protective Measures and Routing of Traffic. It shall be the duty of every person cutting or making an excavation in or upon any public place to place and maintain barriers and warning devices necessary for the safety of the general public.

Barriers, warning signs, lights, etc., shall conform to the requirements of the Administrative Authority. Warning lights shall be electrical markers or flashers used to indicate a hazard to traffic from sunset of each day to sunrise of the next day.

Electrical markers or flashers shall emit light at sufficient intensity and frequency to be visible at a reasonable distance for safety. Reflectors or reflecting material may be used to supplement, but not replace, light sources. The Administrative Authority may restrict the use of lanterns or open flame devices.

The permittee shall take appropriate measures to assure that, during the performance of the excavation work, traffic conditions as near normal as possible shall be maintained at all times so as to minimize inconvenience to the occupants of the adjoining property and to the general public.

When traffic conditions permit, the Administrative Authority may, by written approval, permit the closing of streets and alleys to all traffic for a period of time prescribed by him if, in his opinion, it is necessary. The written approval of the Administrative Authority may require that the permittee give notification to various public agencies and to the general public. In such cases such written approval shall not be valid until such notice is given.

Warning signs shall be placed far enough in advance of the construction operation to alert traffic within a public street, and cones or other approved devices shall be placed to channel traffic in accordance with the instructions of the Administrative Authority.

Exceptions & meaning →

§ 20-3.7. Clearance for Vital Structures.

[Added by Ord. #1286, § 7300.7]

The excavation work shall be performed and conducted so as not to interfere with access to fire hydrants, fire stations, fire escapes, water gates, underground vaults, valve housing structures, and all other vital equipment as designated by the Administrative Authority.

Exceptions & meaning →

§ 20-3.8. Protection of Traffic.

[Added by Ord. #1286, § 7300.8]

The permittee shall maintain safe crossings for two lanes of vehicle traffic at all street intersections where possible and safe crossings for pedestrians at intervals of not more than 300 feet. If any excavation is made across any public street, alley, or sidewalk, adequate crossings shall be maintained for vehicles and for pedestrians. If the street is not wide enough to hold the excavated material without using part of the adjacent sidewalk, a passageway at least 1/2 of the sidewalk width shall be maintained along such sidewalk.

Exceptions & meaning →

§ 20-3.9. Relocation and Protection of Utilities.

[Added by Ord. #1286, § 7300.9]

The permittee shall not interfere with any existing facility without the written consent of the Administrative Authority and the owner of the facility. If it becomes necessary to relocate an existing facility, this shall be done by its owner. No facility owned by the City shall be moved to accommodate the permittee unless the cost of such work shall be borne by the permittee. The cost of moving privately-owned facilities shall be similarly borne by the permittee unless he makes other arrangements with the person owning the facility. The permittee shall support and protect by timbers or otherwise all pipes, conduits, poles, wires, or other apparatus which may be in any way affected by the excavation work and shall do everything necessary to support, sustain, and protect them under, over, along, or across such work. The permittee shall secure approval of the method of support and protection from the owner of the facility. In the event any of such pipes, conduits, poles, wires, or apparatus should be damaged, and for this purpose pipe coating or other encasement or devices are to be considered as part of a substructure, the permittee shall promptly notify the owner thereof. All damaged facilities shall be repaired by the agency or person owning them, and the expense of such repairs shall be charged to the permittee. It is the intent of this subsection that the permittee shall assume all liability for damages to facilities and any resulting damage or injury to anyone because of such facility damage, and such assumption of liability is a contractual obligation of the permittee. The only exception will be such instances where damage is exclusively due to the negligence of the owning utility. The City shall not be made a party to any action because of this subsection. The permittee shall inform itself as to the existence and location of all underground facilities and protect the same against damage.

Exceptions & meaning →

§ 20-3.10. Abandonment of Substructures.

[Added by Ord. #1286, § 7300.10]

Whenever the use of a substructure is abandoned, except the abandonment of service lines designed to serve single properties, the person owning, using, controlling, or having an interest therein shall, within 30 days after such abandonment, file with the Administrative Authority a statement in writing giving in detail the location of the substructure so abandoned. If such abandoned substructure is in the way, or subsequently becomes in the way, of an installation of the City or any other public body, which installation is pursuant to a governmental function, the owner shall remove such abandoned substructure or pay the cost of its removal during the course of the excavation for the construction of the facility by the City or any other public body.

Exceptions & meaning →

§ 20-3.11. Protection of Adjoining Property.

[Added by Ord. #1286, § 7300.11]

The permittee shall at all times, and at his own expense, preserve and protect from injury any adjoining property by providing proper foundations and taking other measures suitable for the purpose. Where, in the protection of such property, it is necessary to enter upon private property for the purpose of taking appropriate protecting measures, the permittee shall obtain a license from the owner of such private property for such purpose. The permittee shall, at its own expense, shore up and protect all buildings, walls, fences, or other property likely to be damaged during the progress of the excavation work and shall be responsible for all damages to public or private property or highways resulting from his failure to properly protect and carry out such work. Whenever it may be necessary for the permittee to trench through any lawn area, such area shall be reseeded or the sod shall be carefully cut and rolled and replaced after ditches have been backfilled as required in this section. All construction and maintenance work shall be done in a manner calculated to leave the lawn area clean of earth and debris and in a condition as nearly as possible to that which existed before such work began. The permittee shall not remove, even temporarily, any trees or shrubs which exist in parking strip areas without first obtaining the consent of the appropriate City department or City official having control of such property.

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§ 20-3.12. Care of Excavated Material.

[Added by Ord. #1286, § 7300.12]

Any material excavated from trenches and piled adjacent to the trench or in any street shall be piled and maintained in such manner as not to endanger those working in the trench, pedestrians, or users of the streets and so that as little inconvenience as possible is caused to those using streets and adjoining property. Where the confines of the area being excavated are too narrow to permit the piling of excavated material beside the trench, the Administrative Authority shall have the authority to require that the permittee haul the excavated material to a storage site and then rehaul it to the trench site at the time of backfilling. It shall be the permittee's responsibility to secure the necessary permission and make all necessary arrangements for all required storage and disposal sites.

All trench and tunnel excavations and construction shall conform with the safety requirements for shoring, bracing, and ladders in trenches in accordance with the "Trench and Tunnel Construction Safety Orders" of the State as they now or may hereafter exist.

All materials excavated shall be laid compactly along the side of the trench and kept trimmed so as to cause as little inconvenience as reasonably possible to vehicular and pedestrian traffic, or as specified by the Administrative Authority. Whenever necessary, in order to expedite the flow of traffic or to abate the dirt or dust nuisance, toe boards or bins may be required by the Administrative Authority to prevent the spreading of dirt into traffic lanes.

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§ 20-3.13. Cleanup.

[Added by Ord. #1286, § 7300.13]

As the excavation work progresses, all streets shall be thoroughly cleaned of all rubbish, excess earth, rock, and other debris resulting from such work. All cleanup operations at the location of such excavation shall be accomplished at the expense of the permittee and shall be completed to the satisfaction of the Administrative Authority. From time to time, as may be ordered by the Administrative Authority and in any event immediately after completion of such work, the permittee shall, at his own expense, clean up and remove all refuse and unused materials of any kind resulting from such work, and, upon failure to do so within 24 hours after having been notified to do so by the Administrative Authority, such work may be done by the Administrative Authority and the cost thereof charged to the permittee, and the permittee shall also be liable for the cost thereof under the surety bond provided hereunder.

Exceptions & meaning →

§ 20-3.14. Protection of Watercourses.

[Added by Ord. #1286, § 7300.14]

The permittee shall maintain all gutters free and unobstructed for the full depth of the adjacent curb and for at least one foot in width from the face of such curb at the gutter line. Whenever a gutter crosses an intersecting street, an adequate waterway shall be provided and at all times maintained.

The permittee shall make provisions to take care of all surplus water, muck, silt, slickings, or other runoff pumped from excavations or resulting from sluicing or other operations and shall be responsible for any damage resulting from his failure to so provide.

Exceptions & meaning →

§ 20-3.15. Breaking Through Pavement.

[Added by Ord. #1286, § 7300.15]

a. Heavy duty pavement breakers may be prohibited by the Administrative Authority when the use endangers existing substructures or other property.

b. Saw cutting of Portland cement concrete may be required by the Administrative Authority when the nature of the work or the condition of the street warrants. When required, the depth of cut shall be not less than one inch in depth; however, depths greater than one inch may be required by the Administrative Authority when circumstances warrant. Saw cutting may be required by the Administrative Authority outside the limits of the excavation over cave-outs, over breaks, and small floating sections.

c. Approved cutting of bituminous pavement surface ahead of excavation may be required by the Administrative Authority to confine pavement damage to the limits of the trench.

d. Sections of sidewalks shall be removed to the nearest score line or joint.

e. Unstable pavement shall be removed over cave-outs and overbreaks, and subgrade shall be treated as the main trench.

f. Pavement edges shall be trimmed to a vertical face and neatly aligned with the center line of the trench.

g. Cutouts outside the trench lines shall be normal or parallel to the trench line.

h. Boring or other methods to prevent cutting of new pavement may be required by the Administrative Authority.

i. The permittee shall not be required to repair pavement damage existing prior to the excavation unless his cut results in small floating sections that may be unstable, in which case the permittee shall remove and pave the area.

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§ 20-3.16. Depth of Structures.

[Added by Ord. #1286, § 7300.16]

No person shall, without written permission of the Administrative Authority, install any substructure, except manholes, vaults, valve casings, culverts, and catch basins, at a vertical distance less than:

a. Streets. Twenty-four inches below the established flow line of the nearest gutter. If such flow line is not established, the depth shall be at a minimum of 24 inches below the surface of the nearest outermost edge of the travelled portion of the street.

b. Parkways. The minimum depth of any substructure shall be 16 inches below the established gutter grade when such substructure parallels with the parkway. The minimum depth of any substructure shall be 12 inches below the top of the established sidewalk or curb when such substructure is at right angles to the parkway.

c. Other Public Places. The minimum depth of any substructure in any other public place shall be 12 inches below the surface; provided, however, the Administrative Authority may permit a lesser depth in special cases.

d. In all cases set forth in this section the Administrative Authority may require a greater depth than the prescribed minimum.

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§ 20-3.17. Backfilling.

[Added by Ord. #1286, § 7300.17]

Backfilling shall be done and performed in accordance with the requirements entitled "Specifications for Backfill" from time to time in effect as provided by resolution of the Council. The Administrative Authority may require soil tests to be furnished by a recognized soil testing laboratory or registered professional engineer specializing in soil mechanics when, in his opinion, backfill for any excavation is not being adequately compacted. In order for the resurfacing to be permitted, such tests shall show that the backfill material meets the minimum requirements as prescribed by the Administrative Authority. All expenses of such tests shall be borne by the permittee.

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§ 20-3.18. Restoration of Surface.

[Added by Ord. #1286, § 7300.18]

Permanent resurfacing or excavations shall be made by the Administrative Authority except that he may instruct the permittee to cause the surface to be restored. After the restoration is made by the Administrative Authority, the total cost of such restoration shall be determined, and the permittee shall be required to pay such cost. In either event the permittee shall, upon approval of backfill, cause the excavation to be resurfaced with a temporary paving material of a type and to such thickness as shall be determined by the Administrative Authority and shall maintain such temporary pavement in a safe and satisfactory condition until such time as permanent resurfacing has been completed.

Should the Administrative Authority instruct the permittee to accomplish the permanent resurfacing, the work of such resurfacing shall be done to the satisfaction of the Administrative Authority and under his inspection.

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§ 20-3.19. Trenches.

[Added by Ord. #1286, § 7300.19]

The maximum length of open trench permissible at any time shall be in accordance with existing laws or regulations or as may be specified by the Administrative Authority, and no greater length shall be open for pavement removal, excavation, construction, backfilling, patching, and all other operations without the written permission of the Administrative Authority.

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§ 20-3.20. Prompt Completion of Work.

[Added by Ord. #1286, § 7300.20]

After an excavation is commenced, the permittee shall prosecute with diligence and expedition all work covered by the excavation permit and shall promptly complete such work and restore the street to its original condition, or as near as may be, so as not to obstruct the public place or travel thereon more than is reasonably necessary.

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§ 20-3.21. Urgent Work.

[Added by Ord. #1286, § 7300.21]

When traffic conditions, the safety or convenience of the traveling public, or the public interest require that the excavation work be performed as emergency work, the Administrative Authority shall have full power to order, at the time the permit is granted, that a crew of men and adequate facilities be employed by the permittee 24 hours a day to the end that such excavation work may be completed as soon as possible, or impose such other requirements as may be deemed reasonably required in interests of public health or safety.

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§ 20-3.22. Emergency Action.

[Added by Ord. #1286, § 7300.22]

Nothing in this section shall be construed to prevent the making of such excavations as may be necessary for the preservation of life or property, or for the location of trouble in conduits or pipes, or for making repairs provided the person making such excavation shall apply to the Administrative Authority for such a permit on the first working day after such work is commenced.

Exceptions & meaning →

§ 20-3.23. Noise, Dust, and Debris.

[Added by Ord. #1286, § 7300.23]

Each permittee shall conduct and carry out excavation work in such manner as to avoid unnecessary inconvenience and annoyance to the general public and occupants of neighboring property. The permittee shall take appropriate measures to reduce to the fullest extent practicable in the performance of the excavation work noise, dust, and unsightly debris and, between the hours of 10:00 p.m. and 7:00 a.m., shall not use, except with the express written permission of the Administrative Authority or in case of an emergency as herein otherwise provided, any tool, appliance, or equipment producing noise of sufficient volume to disturb the sleep or repose of occupants of the neighboring property.

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§ 20-3.24. Preservation of Monuments.

[Added by Ord. #1286, § 7300.24]

Any monument set for the purpose of locating or preserving the lines of any street or property subdivision, or a precise survey reference point, or a permanent survey bench mark within the City shall not be removed or disturbed, or caused to be removed or disturbed, without first obtaining permission in writing from the Administrative Authority so to do. Permission to remove or disturb such monuments, reference points or bench marks shall only be granted upon the condition that the person applying for such permission shall pay all expenses incident to the proper replacement of this monument by the Administrative Authority.

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§ 20-3.25. Inspections.

[Added by Ord. #1286, § 7300.25]

The Administrative Authority shall make such inspections as are reasonably necessary in the enforcement of this section. The Administrative Authority shall have the authority to promulgate and cause to be enforced such rules and regulations as may be reasonably necessary to enforce and carry out the intent of this section.

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§ 20-3.26. Maintenance of Drawings.

[Added by Ord. #1286, § 7300.26]

Every person owning, using, controlling or having an interest in substructures under the surface of any public place used for the purpose of supplying or conveying gas, electricity, communication impulse, water, steam, ammonia or oil in the City shall, when requested, file with the Administrative Authority within 120 days after February 7, 1967, a map or set of maps, each drawn to a scale of not less than one inch to 200 feet, showing in detail the plan, location, size and kind of installation, if known, of all substructures, except service lines designed to serve single properties beneath the surface of the public place belonging to, used by, or under the control of such person having any interest, and shall file with the Administrative Authority annually, at a time specified by the Administrative Authority, a corrected map or set of maps each drawn to said scale, including all installations made during the previous year to and including the last day of such year; provided however, a public utility owner may, at its option, provide corrected atlas sheets at more frequent intervals.

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§ 20-3.27. Liability of City.

[Added by Ord. #1286, § 7300.27]

The provisions of this section shall not be construed as imposing upon the City or any official or employee any liability or responsibility for damages to any person injured by the performance of any excavation work for which an excavation permit is issued hereunder, nor shall the City or any official or employee thereof be deemed to have assumed any such liability or responsibility by reason of inspections authorized hereunder, the issuance of any permit, or the approval of any excavation work.

None of the provisions of this section shall apply to any work done along or under any street or other public place pursuant to any law of the State or of the City providing for the improvement thereof, or pursuant to any contract for street improvement authorized by the Council.

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§ 20-3.28. One-Call Notification System.

[Added by Ord. #1621, § 7300.28]

One-call notification system means an association providing for mutual receipt of notification of construction activities in the unincorporated territory of Compton.

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§ 20-3.29. Search Requirement.

[Added by Ord. #1621, § 7300.29]

Except in emergency work to protect the public and property, any permittee proposing to excavate in any highway shall make a search of available records of underground facilities and shall notify owners or operators known to have such facilities in the vicinity of the proposed excavation by telephone and other acceptable means of communication at least 48 hours prior to time of proposed excavation, exclusive of weekends or legal holidays. At such time as a one-call notification system is operational in Compton, permittee shall notify those owners or operators who are members of the system by notifying the system by telephone at least 48 hours prior to time of proposed excavation, exclusive of weekends or legal holidays. The permit shall not be valid until the permittee receives a ticket number from the system acknowledging the notification, which number the permittee shall enter upon the face of the permit. The notification is an additional method to be used in determining underground facilities and does not relieve the permittee from the responsibility to assure that owners or operators of such facilities are notified. Any permittee shall likewise notify nonmembers of the system who are owners or operators of facilities in the vicinity of the proposed excavation. Any person receiving notice pursuant to this section shall, not less than one working day in advance of proposed construction unless otherwise agreed between the person and permittee, inform the permittee of or field mark the location of any underground facility in the proposed area of excavation.

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§ 20-3.30. Permit Requirements.

[Added by Ord. #1621, § 7300.30]

The provisions of this section apply to permits for the making, or causing to be made, in any highway, 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.

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§ 20-3.31. Membership Requirement.

[Added by Ord. #1621, § 7300.31]

When a one-call notification system is operational in Compton, no person shall maintain and operate a pipeline designed to carry hazardous substances below the surface of a highway unless that person is a member of the system. That person shall provide to the City Manager such proof as required that said person is a member of the system in Compton. For the purpose of this subsection, electrical facilities shall not be considered hazardous.

Exceptions & meaning →

§ 20-3.32. Hydrostatic Pressure Testing.

[Added by Ord. #1621, § 7300.32]

After initial installation under this section of any pipeline used or to be used to carry toxic, corrosive or flammable liquids, such pipeline 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 24 hours.

After repair or replacement of any pipeline used or to be used to carry toxic, corrosive or flammable liquids, made necessary for changes required by improvements within the roadway, the affected portion of the pipeline shall be subjected to a hydrostatic pressure test as provided herein before placing in operation. The duration of the hydrostatic test for this purpose shall be not less than 24 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.

No pipeline subject to this section used to be used to carry toxic, corrosive or flammable liquids, and over 10 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 Manager. The duration of the periodic test for this purpose shall not be less than four hours.

Each pressure test, either initial or retest, shall be in accordance with the American National Standard Institute's Code for Pressure Piping Systems (ANSI B 31.4) in its latest revision. The City Manager may authorize the use of a liquid petroleum that does not vaporize rapidly (i.e., flash point over 150° F. or 66° C.) 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 10 gallons, or the sum of one gallon and an amount computed at a rate in gallons per mile equivalent to 1/10 of the nominal internal diameter of the pipe. The City Manager may grant administrative waiver or other relief to an owner or operator under this section 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.

In addition to the foregoing requirements, any pipeline authorized by this section and subject to pressure testing shall be subjected to a pressure test by the owner or operator at any time as may be required by the City Manager in the interest of public safety.

Within 30 days after completion of any test made pursuant to the provisions of this section, the owner or operator shall submit a certified report of such test for the City Manager's review. The report shall show the date of test, description of portion of pipeline tested identified with respect to Compton highways, 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 this section 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 Manager.

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§ 20-3.33. Block Valve Installation.

[Added by Ord. #1621, § 7300.33]

Block valves shall be installed on each new main line at locations along the pipeline system that will minimize damage from accidental product discharge. This location shall be appropriate for the terrain and the population density of the area.

Exceptions & meaning →

§ 20-3.34. Cathodic Protection System.

[Added by Ord. #1621, § 7300.34]

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 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 Public Utilities Commission of the State of California. 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 Manager for approval. Reports of cathodic protection evaluation in accordance with the approved procedure shall be made available annually for review by the City Manager.

Exceptions & meaning →

§ 20-3.35. Written Emergency Plan.

[Added by Ord. #1621, § 7300.35]

Each owner or operator of a pipeline 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 Fire Prevention Division. The plan shall be in accordance with the American National Standard Institute's Code for Pressure Piping, Liquid Petroleum Transportation Piping Systems (ANSI B 314) in its latest revision.

The plan shall include but not be limited to the following elements:

a. 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.

b. 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.

c. 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 said product at the first indication of a product leak.

d. 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 owners' or operators' personnel. First-on-the-scene costs shall be borne by the organization effecting the emergency containment.

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§ 20-3.36. Abandoned Pipelines.

[Added by Ord. #1621, § 7300.36]

Each applicant for a permit to abandon in place or remove any facility or encroachment in the highway shall do so under the terms and conditions prescribed by the City Manager. 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 Compton for the cost of such removal. The permittee shall leave any abandoned facility or encroachment in a safe condition.

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 Manager that said requirements have been complied with and the abandoned pipeline has been left in a safe condition.

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