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Chapter 50 — SEWERS

§ 50.020 PROHIBITED DISCHARGE STANDARDS.

Eureka Zoning Code · 2026-06 edition · updated 2026-07-25 · Eureka

(A) No person shall discharge any substances directly into a manhole or other opening in a community sewer other than through an approved building sewer unless, upon a written application by the user and the payment of the applicable user charges and fees, the city issues a permit for such direct discharges.

(B) No person shall introduce or cause to be introduced into the POTW, directly or indirectly, any pollutant or wastewater which causes pass through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirement. Furthermore, no person may contribute the following substances to the POTW:

(1) Pollutants which create a fire or explosive hazard in the municipal wastewater collection and POTW, including, but not limited to, wastestreams with a closed-cup flashpoint of less than 140° F (60° C) using the test methods specified in 40 CFR 261.21.

(2) Any wastewater having a pH less than 5.0 or more than 12.5, or otherwise causing corrosive structural damage to the POTW or equipment, or endangering city personnel.

(3) Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference, but in no case solids greater than one-inch or 25.4 millimeters in any dimension.

(4) Any wastewater containing pollutants, including oxygen demanding pollutants (BOD, and the like), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with either the POTW, or any wastewater treatment or sludge process; or which will constitute a hazard to humans or animals.

(5) Any wastewater having a temperature greater than 150° F (65.5° C), or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104° F (40° C).

(6) Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through, but in no case shall the discharge exceed 25 mg/l.

(7) Any pollutants which result in the presence of toxic gases, vapors or fumes within the POTW in a quantity that may cause worker health and safety problems.

(8) Any trucked or hauled pollutants, except at discharge points designated by the city in accordance with § 50.039 of this chapter.

(9) Any noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance, a hazard to life, or to prevent entry into the sewers for maintenance and repair. (10) Any wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant’s effluent thereby violating the

with other wastes, are sufficient to create a public nuisance, a hazard to life, or to prevent entry into the sewers for maintenance and repair. (10) Any wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant’s effluent thereby violating the

city’s NPDES permit. Color (in combination with turbidity) shall not cause the treatment plant effluent to reduce the depth of the compensation point for photosynthetic activity by more than 10% from the seasonably established norm for aquatic life.

(11) Any wastewater containing any radioactive wastes or isotopes, except as specifically approved in writing by the City Manager in compliance with applicable state or federal regulations.

(12) Stormwater, surface water, ground water, artisan well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted industrial wastewater, unless specifically authorized in writing by the City Manager.

  • (13) Any sludges, screenings, or other residues from the pretreatment of industrial wastes.

  • (14) Any medical wastes, except as specifically authorized in writing by the City Manager in a wastewater discharge permit.

  • (15) Any wastewater causing the treatment plant’s effluent to fail a toxicity test.

  • (16) Any wastes containing detergents, surface active agents, or other substances which may cause excessive foaming in the POTW.

  • (17) Any discharge of fats, oils, or greases of animal or vegetable origin is limited to 100 mg/l.

(C) Wastes prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW. All floor drains located in process or materials storage areas must discharge to the industrial user’s pretreatment facility before connecting with the POTW.

(‘63 Code, § 5-5.201) (Ord. 571-C.S., passed 6-2-94; Am. Ord. 737-C.S., passed 2-3-09; Am. Ord. 775-C.S., passed 12-20-11) Penalty, see § 50.999

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▸ Contents — Eureka Zoning Code
Eureka Zoning Code
  1. Article I — NAME AND SEAL; FORM OF GOVERNMENT; BOUNDARIES; MUN…
  2. Article II — ELECTIONS
  3. Article III — CITY COUNCIL
  4. Article IV — MAYOR
  5. Article V — ORDINANCES
  6. Article VI — ADMINISTRATION
  7. Article VII — FISCAL ADMINISTRATION
  8. Article VIII — OFFICERS AND EMPLOYEES
  9. Article IX — FRANCHISES
  10. Article X — INITIATIVE, REFERENDUM AND RECALL
  11. Article XI — MISCELLANEOUS PROVISIONS
  12. Chapter 10 — GENERAL PROVISIONS
  13. Chapter 30 — CITY COUNCIL
  14. Chapter 31 — CITY OFFICIALS
  15. Chapter 32 — CITY DEPARTMENTS
  16. Chapter 33 — BOARDS, COMMISSIONS, AND COMMITTEES
  17. Chapter 34 — PERSONNEL POLICIES
  18. Chapter 35 — FINANCE, REVENUE AND TAXATION
  19. Chapter 36 — HEALTH FACILITY REVENUE BONDS
  20. Chapter 37 — ELECTIONS
  21. Chapter 38 — CIVIL EMERGENCIES
  22. Chapter 39 — CITY POLICY
  23. Chapter 40 — TRANSFERS OF CITY-OWNED REAL PROPERTY
  24. ▸ Chapter 50 — SEWERS
    Overview
    1. § 50.001 PURPOSE AND POLICY.
    2. § 50.002 DEFINITIONS.
    3. § 50.003 ABBREVIATIONS.
    4. § 50.004 VANDALISM.
    5. § 50.005 CONFIDENTIAL INFORMATION.
    6. § 50.006 CONFLICTING PROVISIONS.
    7. § 50.007 SEVERABILITY.
    8. § 50.020 PROHIBITED DISCHARGE STANDARDS.
    9. § 50.021 FEDERAL CATEGORICAL PRETREATMENT STANDARDS.
    10. § 50.022 SPECIFIC POLLUTANT LIMITATIONS.
    11. § 50.023 CITY'S RIGHT OF REVISION.
    12. § 50.024 SPECIAL AGREEMENT.
    13. § 50.025 DILUTION.
    14. § 50.035 PRETREATMENT FACILITIES.
    15. § 50.036 ADDITIONAL PRETREATMENT MEASURES.
    16. § 50.037 ACCIDENTAL DISCHARGE/SLUG CONTROL PLANS.
    17. § 50.038 TENANT RESPONSIBILITY.
    18. § 50.039 HAULED WASTEWATER.
    19. § 50.040 GREASE HAULER PERMIT REQUIREMENTS.
    20. § 50.041 GREASE HAULER PERMIT APPLICATION.
    21. § 50.042 GREASE HAULER PERMIT REISSUANCE.
    22. § 50.043 GREASE HAULER PERMIT CONTENTS.
    23. § 50.044 GREASE HAULER PERMIT APPEALS.
    24. § 50.045 GREASE HAULER PERMIT MODIFICATION.
    25. § 50.046 REVOCATION OF PERMIT.
    26. § 50.050 WASTEWATER SURVEY.
    27. § 50.051 WASTEWATER DISCHARGE PERMIT REQUIREMENTS.
    28. § 50.052 WASTEWATER DISCHARGE PERMIT APPLICATION.
    29. § 50.053 WASTEWATER DISCHARGE PERMIT DECISIONS.
    30. § 50.054 DURATION OF PERMIT; REISSUANCE.
    31. § 50.055 PERMIT CONTENTS.
    32. § 50.056 APPEALS.
    33. § 50.057 PERMIT MODIFICATION.
    34. § 50.058 TRANSFER OF PERMIT.
    35. § 50.059 REVOCATION OF PERMIT.
    36. § 50.070 BASELINE MONITORING REPORTS.
    37. § 50.071 COMPLIANCE SCHEDULE PROGRESS REPORT.
    38. § 50.072 REPORT ON COMPLIANCE WITH CATEGORICAL PRETREATMENT ST…
    39. § 50.073 PERIODIC COMPLIANCE REPORTS.
    40. § 50.074 REPORTS OF CHANGED CONDITIONS.
    41. § 50.075 REPORTS OF POTENTIAL PROBLEMS.
    42. § 50.076 REPORTS FROM NONSIGNIFICANT INDUSTRIAL USERS.
    43. § 50.077 NOTICE OF VIOLATION; REPEAT SAMPLING AND REPORTING.
    44. § 50.078 NOTIFICATION OF THE DISCHARGE OF HAZARDOUS WASTE.
    45. § 50.079 ANALYTICAL REQUIREMENTS.
    46. § 50.080 SAMPLE COLLECTION; DETERMINATION OF NONCOMPLIANCE.
    47. § 50.081 RECORD KEEPING.
    48. § 50.090 PERMITS REQUIRED.
    49. § 50.091 IMPACT FEES AND INSTALLATION CHARGES.
    50. § 50.092 MAINTENANCE OF BUILDING SEWERS.
    51. § 50.093 MAIN EXTENSIONS.
    52. § 50.105 WASTEWATER VOLUME DETERMINATION.
    53. § 50.106 PRETREATMENT CHARGES AND FEES.
    54. § 50.107 WASTEWATER USER CHARGES.
    55. § 50.108 BILLING; PERSONS RESPONSIBLE FOR PAYMENT.
    56. § 50.109 PENALTY FOR NONPAYMENT.
    57. § 50.120 DUTIES OF CITY MANAGER.
    58. § 50.121 COMPLIANCE MONITORING.
    59. § 50.122 PUBLICATION OF INDUSTRIAL USERS IN SIGNIFICANT NONCOM…
    60. § 50.123 ADMINISTRATIVE ENFORCEMENT REMEDIES.
    61. § 50.124 JUDICIAL ENFORCEMENT REMEDIES.
    62. § 50.125 SUPPLEMENTAL ENFORCEMENT ACTION.
    63. § 50.126 REMEDIES NONEXCLUSIVE.
    64. § 50.127 AFFIRMATIVE DEFENSES TO DISCHARGE VIOLATIONS.
    65. § 50.201 PURPOSE.
    66. § 50.202 TRIGGERING EVENTS.
    67. § 50.203 INSPECTION METHODS.
    68. § 50.204 REVIEW OF INSPECTION RESULTS, STANDARDS.
    69. § 50.205 NOTICE TO REPAIR.
    70. § 50.206 TIMING AND COMPLETION OF WORK.
    71. § 50.207 FEE IN LIEU OF REPAIR, REPAIRS PERFORMED BY THE CITY …
    72. § 50.208 LATERAL CERTIFICATE.
    73. § 50.209 EXCEPTIONS.
    74. § 50.210 FEES.
    75. § 50.211 FAILURE TO REPAIR OR REPLACE.
    76. § 50.212 ASSISTANCE WITH SEWER REPAIR COSTS.
  25. Chapter 51 — SOLID WASTE
  26. Chapter 52 — UNDERGROUND UTILITY DISTRICTS
  27. Chapter 53 — WATER
  28. Chapter 54 — STORM WATER QUALITY MANAGEMENT AND DISCHARGE CONT…
  29. Chapter 55 — ENERGY
  30. Chapter 56 — STREETS
  31. Chapter 70 — GENERAL PROVISIONS
  32. Chapter 71 — TRAFFIC RULES
  33. Chapter 72 — STOPPING, STANDING AND PARKING
  34. Chapter 73 — BICYCLES
  35. Chapter 75 — MOBILE VENDORS OPERATING UPON A STREET
  36. Chapter 90 — ABANDONED VEHICLES
  37. Chapter 91 — ANIMALS
  38. Chapter 92 — FIRE PREVENTION
  39. Chapter 93 — PARKS AND RECREATION
  40. Chapter 94 — HEALTH AND SANITATION
  41. Chapter 95 — MUNICIPAL AIRPORT
  42. Chapter 96 — PARADES AND ASSEMBLIES
  43. Chapter 97 — SMOKING
  44. Chapter 98 — STREETS AND SIDEWALKS
  45. Chapter 99 — TRAINS AND RAILROADS
  46. Chapter 100 — HARBOR REGULATIONS
  47. Chapter 101 — FILMING
  48. Chapter 102 — BEEKEEPING
  49. Chapter 103 — PRIVATE SECURITY AND FIRE ALARM SYSTEMS
  50. Chapter 104 — MILITARY EQUIPMENT USE
  51. Chapter 110 — BUSINESS LICENSES
  52. Chapter 112 — AMBULANCES
  53. Chapter 113 — AMUSEMENTS
  54. Chapter 114 — CABLE TELEVISION SYSTEMS
  55. Chapter 115 — FOOD ESTABLISHMENTS AND OUTDOOR DINING AREAS
  56. Chapter 117 — MASSAGE PARLORS
  57. Chapter 118 — SOLICITORS, CANVASSERS, AND SIDEWALK VENDORS
  58. Chapter 119 — SECOND-HAND DEALERS
  59. Chapter 120 — TAXICABS AND LIMOUSINES
  60. Chapter 121 — OTHER VEHICLES FOR HIRE
  61. Chapter 122 — FOREIGN-TRADE ZONE
  62. Chapter 130 — OFFENSES AGAINST PUBLIC PEACE AND SAFETY
  63. Chapter 131 — PROPERTY OFFENSES
  64. Chapter 132 — DRUG OFFENSES
  65. Chapter 133 — WEAPONS OFFENSES
  66. Chapter 134 — ABATEMENT OF CHRONIC NUISANCE PROPERTIES
  67. Chapter 150 — BUILDING REGULATIONS
  68. Chapter 151 — AIRPORT ZONING
  69. Chapter 152 — PLANNING AND ZONING ADMINISTRATION
  70. Chapter 153 — FLOOD HAZARD AREA REGULATIONS
  71. Chapter 154 — SUBDIVISION REGULATIONS
  72. Chapter 155 — ZONING REGULATIONS
  73. Chapter 155 — ZONING REGULATIONS (old)
  74. Chapter 156 — COASTAL ZONING REGULATIONS
  75. Chapter 157 — HISTORIC PRESERVATION
  76. Chapter 158 — CANNABIS
  77. Chapter 159 — WIRELESS TELECOMMUNICATIONS FACILITIES

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