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Chapter 10 — TRAPS AND INTERCEPTORS

1009.5 Location. Each interceptor (clarifier) cover shall be

California Plumbing Code (Title 24, Part 5) · 2022 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

readily accessible for servicing and maintaining the interceptor (clarifier) in working and operating condition. The use of ladders or the removal of bulky equipment to service interceptors (clarifiers) shall constitute a violation of accessibility. Location of interceptors (clarifiers) shall be shown on the approved building plan.

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▸Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
  5. Chapter 5 — WATER HEATERS
  6. Chapter 6 — WATER SUPPLY AND DISTRIBUTION
  7. Chapter 7 — SANITARY DRAINAGE
  8. Chapter 8 — INDIRECT WASTES
  9. Chapter 9 — VENTS
  10. ▸Chapter 10 — TRAPS AND INTERCEPTORS
    Overview
    1. 1001.1 Applicability. This chapter shall govern the materials,…
    2. 1001.2 Where Required. Each plumbing fixture shall be
    3. 1002.1 Vent Pipes. Each plumbing fixture trap, except as
    4. 1002.2 Fixture Traps. Each fixture trap shall have a protectin…
    5. 1002.3 Change of Direction. A trap arm shall be permitted to c…
    6. 1002.4 Vent Pipe Opening. The vent pipe opening from
    7. 1003.1 General Requirements. Each trap, except for
    8. 1003.2 Slip Joint Fittings. A maximum of one approved
    9. 1003.3 Size. The size (nominal diameter) of a trap for a
    10. 1004.1 Prohibited. No form of trap that depends for its seal
    11. 1004.2 Movable Parts. Bladders, check valves or another
    12. 1005.1 General. Each fixture trap shall have a liquid seal of
    13. 1006.1 General. Floor drains shall connect into a trap so
    14. 1007.1 General. Floor drain or similar traps directly connecte…
    15. 1007.2 Trap Seal Primers. Potable water supply trap seal
    16. 1008.1 General. Building traps shall not be installed except
    17. 1009.1 Where Required. Interceptors (clarifiers) (including gr…
    18. 1009.2 Approval. The size, type, and location of each intercep…
    19. 1009.3 Design. Interceptors (clarifiers) for sand and similar
    20. 1009.4 Relief Vent. Interceptors (clarifiers) shall be so
    21. 1009.5 Location. Each interceptor (clarifier) cover shall be
    22. 1009.6 Maintenance of Interceptors. Interceptors shall be
    23. 1009.7 Discharge. The waste pipe from oil and sand interceptor…
    24. 1010.1 General. A fish, fowl, and animal slaughterhouse or
    25. 1010.2 [AGR] Meat and Poultry Processing Plants.
    26. 1010.3 [AGR] Collection Centers and Facilities. All
    27. 1010.4 [AGR] Horse Meat and Pet Food Establish-
    28. 1010.5 [AGR] Draining and Plumbing. There shall be
    29. 1011.1 General. A private or public wash rack or floor or slab
    30. 1012.1 General. Laundry equipment in commercial and industrial…
    31. 1013.1 General. Bottling plants shall discharge their process
    32. 1014.1 General. Where it is determined by the Authority Having…
    33. 1014.2 Hydromechanical Grease Interceptors. Plumbing fixtures …
    34. 1014.3 Gravity Grease Interceptors. Required gravity
    35. 1015.1 Purpose. The purpose of this section is to provide
    36. 1015.2 Components, Materials, and Equipment. FOG
    37. 1015.3 Sizing and Installation. FOG disposal systems
    38. 1015.4 Performance. FOG disposal systems shall produce
    39. 1015.5 [OSHPD 1, 1R, 2, 3, 4 & 5] Grease interceptors
    40. 1015.6 [OSHPD 1, 1R, 2, 3, 4 & 5] Grease interceptors
    41. 1016.1 Discharge. Where the discharge of a fixture or drain
    42. 1016.2 Authority Having Jurisdiction. Sand interceptors
    43. 1016.3 Construction and Size. Sand interceptors shall be
    44. 1016.4 Separate Use. Sand and similar interceptors for
    45. 1017.1 Interceptors Required. Repair garages and gasoline stat…
    46. 1017.2 Design of Interceptors. Each manufactured interceptor t…
  11. Chapter 11 — STORM DRAINAGE
  12. Chapter 12 — FUEL GAS PIPING
  13. Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
  14. Chapter 14 — FIRESTOP PROTECTION
  15. Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
  16. Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
  19. Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
  20. Appendix C — ALTERNATE PLUMBING SYSTEMS
  21. Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
  22. Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
  23. Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS
  25. Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
  26. Appendix I — INSTALLATION STANDARDS
  27. Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
  28. Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
  29. Appendix L — SUSTAINABLE PRACTICES
  30. Appendix M — PEAK WATER DEMAND CALCULATOR
  31. Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …

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