23 CA ADC § 124


      23 CCR s 124

      Cal. Admin. Code tit. 23, s 124


      CALIFORNIA CODE OF REGULATIONS
      TITLE 23. WATERS
      DIVISION 1. RECLAMATION BOARD
      CHAPTER 1. ORGANIZATION, POWERS AND STANDARDS
      ARTICLE 8. STANDARDS
      This database is current through 05/19/06, Register 2006, No. 20.

      s 124. Abandoned Pipelines and Conduits.

      (a) Abandoned pipelines, conduits, and all appurtenances (such as pumps, 
      standpipes, or positive closure structures) that are located within a 
      levee section, within the projected levee section, or within ten (10) feet 
      of the levee toes shall be completely removed, when practical, and 
      disposed of outside the floodway.

      (1) When the invert of an abandoned pipeline or conduit within a levee is 
      above the design flood plane elevation, the pipeline or conduit must be 
      removed.

      (2) An abandoned pipeline or conduit located within one (1) foot of the 
      surface of the levee slope shall be removed.

      (3) When the invert of an abandoned pipeline or conduit within a levee is 
      six (6) feet or less below the design flood plane elevation, the board may 
      require the removal of the pipeline or conduit.

      (4) The side slopes of an excavation to remove an abandoned pipeline or 
      conduit from within a levee must be one (1) foot horizontal to one (1) 
      foot vertical or flatter.

      (5) After any pipeline, conduit, or appurtenance is removed from a levee, 
      approved backfill shall be keyed into the levee section with each lift and 
      compacted in four- (4) to six- (6) inch layers with a relative compaction 
      of not less than ninety (90) percent, per ASTM D1557-91, dated 1991, which 
      is incorporated by reference and above optimum moisture content.

      (6) Compaction tests by a certified soils laboratory will be required to 
      verify compaction of backfill within a levee or within the projected levee 
      section.

      (b) Abandonment of pipelines and conduits within a floodway must be in a 
      manner consistent with the following:

      (1) After any pipeline, conduit or appurtenance is removed from a 
      floodway, open-trench backfill must be placed in a manner consistent with 
      the local conditions. Erosive stream reaches will require methods that 
      compact the backfill to at least the density of that of adjacent soils. 
      Compaction tests by a certified soils laboratory may be required to verify 
      compaction within the floodway.

      (2) Abandoned pipelines or conduits within the berm and within thirty (30) 
      feet of the top of the streambank must not be filled with concrete but may 
      be removed if exposed by bank erosion.

      (c) If it is determined by the board that it is impractical or detrimental 
      to the levee to remove an abandoned pipeline or conduit from a levee 
      section, the pipeline or conduit must be completely filled with concrete.

      (1) Concrete to be used to fill an abandoned pipeline or conduit must be a 
      three- (3) sack cement mix, or equivalent, with aggregate having a maximum 
      size of three-eighths (3/8) inch, and a water content sufficient to 
      produce a six-(6) to eight- (8) inch slump.

      (2) A detailed plan for filling an abandoned pipeline or conduit with 
      concrete may be required to be submitted for approval by the board prior 
      to start of work.

      (3) A pipeline or conduit to be filled with concrete must have a minimum 
      cover of three (3) feet below the waterward levee slope.

      (4) See Figure 8.07 for illustrated details on sealing abandoned pipelines 
      and conduits.

      (d) Concrete pipes may be plugged with concrete at each end as an 
      alternative to complete filling. The length of each plug shall be a 
      minimum of two (2) feet or twice the diameter of the pipe, whichever is 
      greater.




      Image 1 (8.5" X 6.75") Not available for Offline Print to STP or FAX




      


      Note: Authority cited: Section 8571, Water Code. Reference: Sections 8608 
      and 8710, Water Code. 


       HISTORY 
         
      1. New section and figure 8.07 filed 9-30-96; operative 10-30-96 (Register 
      96, 
      No. 40).
      23 CA ADC s 124

      END OF DOCUMENT

      (C) Copyright 2006, Result Oriented Marketing, Inc.
      For Further Assistance Visit : www.mcmillanlaw.us and www.fearnotlaw.com