ACCEPTED WASTES

We can accept the following types of waste:

1. Food Processing Wastewaters:

• Produce washing
• Fish, meat, and poultry washing
• Grain containing
• Brewery and distillery
• Soft drink processing

2. Vehicle Wash Waste:

• Car wash wastewater
• Truck wash wastes from truck washes where only the outside of the truck is washed; or from a truck wash where both the inside and outside are washed (provided the truck does not haul hazardous materials).

3. Hotel and Prison Laundry Wastewater

4. Swimming Pool Wastewater

5. Process Wastewaters:

• Drinking water softener processing
• Pipeline flush
• Boiler blowdown
• Hydorstatic test waters
• Construction cleanup
• Colling water from injection molding
• Domestic trash handling, tipping floor cleanup
• Marble and stone cutting/polishing
• Corrugation operations
• Fiberglass production

If the waste to be processed falls into one of the above categories, Southwest Treatment Systems, Inc. can begin your job upon receipt of the following:

1. A completed Southwest Treatment Systems, Inc. Waste Generator Prequalification Questionnaire; and
2. A good representative sample of the waste to be disposed of at the facility.

After STSI has reviewed the questionnaire and sample, we may then require additional analysis by a certified laboratory. These precautions protect you and ensure compliance with the EPA and other regulatory organizations.

Wastewater from drilling of drinking water wells is acceptable to treatment at Southwest Treatment Systems, Inc., provided that each load sent to STSI for treatment is accompanied by a complete analytical report containing, at minimum, results of testing for metals and cyanide regulated under the Districts' Phase I limits, as well as toxic volatile organics per EPA Test Methods 601 and 602 (or alternatively EPA Test Method 624).

Wastewater from drilling of wells and cleanup associated with groundwater contamination investigations may not be accepted for treatment at STSI without prior written permission from the Districts of each particular generator of the waste. Each request for approval to accept the waste must be accompanied by a description of the site at which the waste was generated, the specific operations which generated the waste, and full analytical data on the waste, including metals, cyanide, toxic volatile organics, and a 96-hour LC/50 for aquatic toxicity.

If the waste to be processed DOES NOT fall into any of the above categories, Southwest Treatment Systems, Inc. needs to obtain the following information for approval by County Sanitation:

1. A complete Southwest Treatment Systems, Inc. Waste Generator Prequalification Questionnaire;

2. A good representative sample of the waste to be disposed of at the facility, and

3. A wastewater profile analyzed by a certified laboratory for the following:

• Total volatile toxic organics per EPA methods 601 and 602, reported in mg/l;
• Total indentifiable Chlorinated Hydrocarbons reported in mg/;.*
• Heavy metals:
  • Total Arsenic reported in mg/l
  • Total Cadmium reported in mg/l
  • Total Chromium reported in mg/l
  • Total Lead reported in mg/l
  • Total Copper reported in mg/l
  • Total Mercury reported in mg/l
  • Total Nickel reported in mg/l
  • Total Silver reported in mg/l
  • Total Zinc reported in mg/l
  • Total Cyanide reported in mg/l
    

4. Dissolved Sufide

• Total Identifiable Chlorinated Hydrocarbons (TICH) comprise:
  Aldrin and Dieldrin
  Chlordane (cis & trans), trans-nonachlor, oxchlordane, heptachlor and heptaclor expoxide
  DDT and derivatives p,p' and o,p' isomers of DDT, DDD, and DDE
  Endrin
  HCH: sum of , , , and (alpha, beta, gamma, and delta) isomers of hexachlorocyclohexane
  Toxaphene
  Polychlorinated biphenyls

 

Note: STSI treats waste from food generators containing animal and vegetable oils separately from all other wastewaters. We cannot accept loads that have been commingled; i.e. a restaurant grease trap mixed car wash waste. We also require that the truck be washed out in between hauling these different types of waste.