Prohibited & Restricted Waste
Prohibited Waste
Prohibited waste must not be disposed of through the Region's sewer system. Prohibited wastes includes:
Hazardous Waste
Hazardous waste as defined by the Environmental Management Act. (Bylaw 3350)
Air Contaminant Waste
Any waste other than sanitary waste which, by itself or in combination with another substance, is capable of creating, causing or introducing an air contaminant outside any sewer or sewage facility or is capable of creating, causing or introducing an air contaminant within any sewer or sewage facility which would prevent safe entry by authorized personnel.
Flammable or Explosive Waste
Any waste, which by itself or in combination with another substance, is capable of causing or contributing to an explosion or supporting combustion in any sewer or sewage facility including, but not limited to gasoline, naphtha, propane, diesel, fuel oil, kerosene or alcohol.
Obstructive Waste
Any waste which by itself or in combination with another substance, is capable of obstructing the flow of, or interfering with, the operation or performance of any sewer or sewage facility including, but not limited to: earth, sand, sweepings, gardening or agricultural waste, ash, chemicals, paint, metal, glass, sharps, rags, cloth, tar, asphalt, cement-based products, plastic, wood, waste portions of animals, fish or fowl and solidified fat.
Corrosive Waste
Any waste with corrosive properties which, by itself or in combination with any other substance, may cause damage to any sewer or sewage facility or which may prevent safe entry by authorized personnel.
High Temperature Waste
- (a) Any waste which, by itself or in combination with another substance, will create heat in amounts which will interfere with the operation and maintenance of a sewer or sewage facility or with the treatment of waste in a sewage facility;
- (b) Any waste which will raise the temperature of waste entering any sewage facility to 40 degrees Celsius (104 degrees Fahrenheit) or more;
- (c) Any non-domestic waste with a temperature of 65 degrees Celsius (149 degrees Fahrenheit) or more.
Biomedical Waste
Any of the following categories of biomedical waste: human anatomical waste, animal waste, untreated microbiology laboratory waste, clinical and laboratory waste sharps and untreated human blood and body fluids known to contain viruses and agents listed in "Risk Group 4" as defined in the Transportation of Dangerous Goods Regulations. (Bylaw 3105)
(Bylaw 3350) CRD Sewer Use Bylaw
Bylaw 2922 – Schedule "A" Page 2
Miscellaneous Wastes
Any waste, other than sanitary waste, which by itself or in combination with another substance:
- Constitutes or may constitute a significant health or safety hazard to any person;
- May interfere with any sewer or sewage treatment process;
- May cause a discharge from a sewage facility to contravene any requirements by or under any permit issued under the Environmental Management Act or any other act, approved Liquid Waste Management Plan, or any other law or regulation governing the quality of the discharge, or may cause the discharge to result in a hazard to people, animals, property or vegetation; (Bylaw 3350)
- May cause biosolids to fail criteria for beneficial land application in British Columbia as set out in the Organic Matter Recycling Regulation (British Columbia) deposited February 2002, or may cause the emissions from a wastewater sludge combustion facility to be out of compliance with appropriate permits, or may cause the ashes from a wastewater sludge combustion facility to be considered a hazardous waste under the Environmental Management Act. (Bylaw 3105) (Bylaw 3350)
Restricted Wastes
Restricted waste includes:
Specified Waste
Any waste which, at the point of discharge into a sewer, contains any contaminant at a concentration in excess of the limits set out below. All concentrations are expressed as total concentrations which includes all forms of the contaminant, whether dissolved or undissolved. The concentration limits apply to both grab and composite samples. Contaminant definitions and methods of analysis are outlined in standard methods or methods specified by the manager.
Any of the contaminants listed below in tables (a), (b) or (c) that are present in a waste at dissolved concentrations in excess of the Hazardous Waste Regulation Leachate Quality Standards will qualify that waste, regardless of the sampling method used, as a hazardous waste. (Bylaw 3350)
CONVENTIONAL CONTAMINANTS [mg/L]
| Biochemical Oxygen Demand (BOD) | 500 |
| Chemical Oxygen Demand (COD) | 1000 |
| Oil and Grease* | 100 |
| Suspended Solids | 350 |
Note: *Total oil and grease includes oil and grease (hydrocarbons) (see table (b))
ORGANIC CONTAMINANTS [mg/L]
| Benzene | 0.1 |
| Ethyl Benzene | 0.2 |
| Toluene | 0.2 |
| Xylenes | 0.2 |
Polynuclear Aromatic Hydrocarbons (PAH)** |
0.05 |
| Phenols | 1 |
| Oil and Grease (hydrocarbons) | 15 |
Note: **Polynuclear Aromatic Hydrocarbons (PAH) include:
- naphthalene benzo(a)anthracene
- acenaphthylene chrysene
- acenapthene benzo(b)fluoranthene
- fluorene benzo(k)fluoranthene
- phenanthrene benzo(a)pyrene
- anthracene dibenzo(a,h)anthracene
- fluoranthene indeno(1,2,3-cd)pyrene
- pyrene benzo(g,h,i)perylene
CRD Sewer Use Bylaw
Bylaw 2922 - Schedule "B" Page 2
CRD Bylaw No. 2922 (Consolidated) November 8, 2006
CRD Sewer Use Bylaw
INORGANIC CONTAMINANTS [mg/L]
| Arsenic (As) | 0.4 |
| Cadmium (Cd) | 0.3 |
| Chloride (Cl) | 1500 |
| Chromium (Cr) | 4 |
| Cobalt (Co) | 5 |
| Copper (Cu) | 1 |
| Cyanide (CN) | 1 |
| Iron (Fe) | 50 |
| Lead (Pb) | 1 |
| Manganese (Mn) | 5 |
| Mercury (Hg) | .02 |
| Molybdenum (Mo) | 5 |
| Nickel (Ni) | 3 |
| Selenium (Se) | .3 |
| Silver (Ag) | 0.5 |
| Sulphate (SO4) | 1500 |
| Sulphide (S) | 1 |
| Zinc (Zn) | 3 |
Food Waste
Any non-domestic waste from cooking and handling of food that, at the point of discharge into a sewer, contains particles larger than 0.5 centimetres in any dimension.
Radioactive Waste
Any waste containing radioactive materials that, at the point of discharge into a sewer, exceeds radioactivity limitations as established by the Canadian Nuclear Safety Commission. (Bylaw 3016)
pH Waste
Any non-domestic waste which, at the point of discharge into a sewer, has a pH lower than 5.5 or higher than 11.0, as determined by either a grab or a composite sample.
Dyes & Colouring Material
Dyes or colouring materials which may pass through a sewage facility and discolour the effluent from a sewage facility except where the dye is used by the District, or one or more of its municipalities, as a tracer.
Miscellaneous Restricted Wastes
Any of the following wastes as defined in the bylaw.
- Seawater
- PCBs
- Chlorinated phenols ***
- Pesticides
- Tetrachloroethylene
Bylaw 2922 - Schedule "B" Page 3
CRD Bylaw No. 2922 (Consolidated) November 8, 2006
CRD Sewer Use Bylaw
(f) organo-tin compounds (Bylaw 3350)
*** Chlorinated phenols include:
• chlorophenol (ortho, meta, para)
• dichlorophenol (2,3, 2,4-, 2,5-, 2,6-, 3,4-, 3,5-)
• trichlorophenol (2,3,4-, 2,3,5-, 2,3,6-, 2,4,5-, 2,4,6-, 3,4,5-)
• tetrachlorophenol (2,3,4,5-, 2,3,4,6-, 2,3,5,6-)
• pentachlorophenol