Steel Aboveground Oil/Water Separator Single or Double Wall. CSI 3-Part Specifications.

STEEL ABOVEGROUND OIL/WATER SEPARATOR SINGLE-WALL OR DOUBLE WALL
SECTION 02700
DRAINAGE

1.01 Related Documents

1. The provisions of the General Conditions, Supplementary Conditions, Sections included under Division 1, General Requirements, and Section ______ of this Division are included as part of this Section as though bound herein.
2. Refer to details and schedules on the drawings for additional requirements.

1. Drop-out box: Contractor to furnish and install precast, steel, or fiberglass drop-out box.
2. Plastic pipe: Contractor to furnish and install all necessary PVC drainage pipe and fittings.
Contractor shall install one butterfly valve between the drop-out box and tank inlet, as well as on the effluent pipe.

1. The Contractor shall furnish the labor, materials, equipment, appliances, services and hauling, and perform operations in connection with the construction and installation of the separator. Work shall be as herein specified and as denoted on the accompanying Drawings but not limited to the following general terms of work:

a. Storm sewers
b. Sanitary sewers
c. Catch basin and manholes
d. Trench drains
e. Oil/Water separators

2. Provide ______ gallon(s) aboveground steel oil/water separator tank(s), piping, necessary pumps, venting, vent piping, monitoring equipment, and oil draw-off pump(s) required to make a complete installation ready for use.
3. The separator shall be a pre-packaged, pre-engineered, ready to install unit.
4. The Contractor will provide filling of oil/water separator with clean water.
5. The Contractor shall mechanically unload the oil/water separator at the job site.

1. National Fire Protection Assoc. (NFPA 30) Flammable and Combustible Liquids Code, (NFPA 30A) Automotive and Marine Service Station Code, (NFPA 70), National Electrical Code.
2. "Petroleum Equipment Institute Publication RP200-92; Recommended Practices for Installation of Aboveground Storage Systems for Motor Vehicle Fueling".

a. API manual on disposal of refinery wastes
b. API bulletin no. 421
c. API bulletin no. 1630 first edition (replaced by API 421)
d. Coast Guard Specification 46 CFR 162.50 - 46 CFR Chapter 1
e. EPA Test Method 413. 1, Oil and Grease, Total Recoverable (Gravimetric, Separatory Funnel Extraction).
f. EPA Test Method 413.2, Oil and Grease, Total Recoverable (Spectrophotometric, Infrared).

1. Test Data: The manufacturer must provide test data and a written report proving that the oil/water separator is capable of producing effluent with no more than 10 ppm free oil and grease (not dissolved nor chemically emulsified with soaps or detergents) when tested using the Coast Guard test method 46 CFR 162.50. The test inlet oils include both 0.8 and 0.9 specific gravity (approximate) oils.
2. Oil/Water separator tank shall be constructed to meet UL142 governing standards.
3. Shop Drawings: Contractor shall submit copies of shop drawings for each OWS tank. Drawings shall include all critical dimensions, locations of fittings and accessories.
4. All OWS tanks, equipment and piping materials shall be physically inspected and tested before being installed. Any defects observed shall be immediately brought to the attention of the Owner. It shall be the sole responsibility of the Contractor to correct any deficiencies, with the manufacturer in strict accordance with manufacturers' recommendations, at no additional cost to the Owner.
5. Contractor shall submit copies of manufacturer's literature.
6. Containment Solutions Oil/Water separators will not remove oils with specific gravities greater than 0.95, chemical or physical emulsions, dissolved hydrocarbons, or volatile organic compounds [VOC).
7. The contractor shall obtain and pay for all permits, tests, inspections, etc. required by the local boards that have jurisdiction over the project. All work shall be executed and inspected in accordance with all local and state codes, rules, ordinances, or regulations pertaining to the particular work involved. Should any changes in the contract drawings and specifications be required to conform to such ordinances, notify the owner at time of submitting bid. After entering into the contract the contractor shall be held responsible for the completion of all work necessary for a complete and approved installation without extra expense to the owner.

Provide and install ________ Containment Solutions, Inc. ________ gallon capacity Model AOWS- ________ Oil/Water Separator. Separator shall be ________ long x ________ wide x ________ high.
1. Oil/Water Separator shall be designed in accordance with Stokes Law, and American Petroleum Institute (API) Publication 421, "Monographs on Refinery Environmental Control, Management of Waste Discharges, Design and Operation of Oil/Water Separators" to achieve an effluent quality of 10ppm.
2. Oil/Water Separator shall be manufactured and tested for leakage prior to shipment.
3. Oil/Water Separator shall be designed to separate free oil and grease and settleable solids from water for intermittent and variable flows of oil, water or combination of non-emulsified flows of oil/water up to ______gallons per minute. Influent hydrocarbon specific gravity range shall be from .68 to .95 and in concentrations up to 200,000 mg/l.
4. The Oil/Water Separator shall have an oil storage capacity of ______ gallons and an oil spill capacity of ______ gallons.
5. Oil/Water Separator shall be designed for aboveground, top at grade level, or belowground (in a vault) installation. Separator shall be rectangular horizontal steel vessel designed for storage of flammable and combustible liquids and have the structural strength to withstand static and dynamic loading under all normal operating conditions. Separator shall be designed to be vented to atmosphere.
6. Separator shall consist of a vessel having the inlet and outlet connections on the same end for convenient installation, oleophilic debris plates to promote coalescence of oil and reduce inlet flow velocity.
Separator shall have removable modular inclined corrugated parallel plate system consisting of:

7. Separator shall consist of effluent chamber for increased retention time, oil retention, and separated oil accumulation, effluent transfer pipe(s), and effluent downcomer to allow discharge from clearwell chamber. Separator shall have steel cover(s) with handles, gasket and bolts for easy removal for inspection and service of each chamber.
8. Inlet and outlet shall be located on the same end of the Oil/Water Separator creating laminar flow characteristics for a distance equal to twice the length of the vessel, as follows:
______ inch diameter (NPT) threaded influent connection.
______ inch diameter (NPT) threaded effluent connection.
9. Separator shall have top fittings for vent, oil interface level sensor (or waste oil pump control sensor), and waste oil pump out.
10. Internal surfaces to be commercially prepared and coated with (10 mils DFT) hydrocarbon/water compatible epoxy coating.
11. External surfaces to be commercially prepared and coated with (10 mils DFT) hydrocarbon/water compatible epoxy coating. Standard color: Desert Sand

• Optional Exterior Coating: 60 mils UV Protected Corrosion Resistant Fiberglass Reinforced Polyester (FRP).
  Standard color: Desert Sand

1. Electronic Control Panel shall be constructed of UL-listed electronic components. The control panel power source is 120 volts A.C. (contractor provided wiring). The sensor monitoring circuit is an intrinsically safe circuit, i.e., the circuit incapable of releasing sufficient electrical or thermal energy to cause ignition of specific hazardous material under "normal" or "fault" operating conditions. The control panel shall be capable of monitoring single or multiple point oil/water interface sensors. Electrical components rating shall be NEMA 3R, 4, or 4X.
Control panels shall include:

2. Oil/Water Interface Sensor
Provide and install single or multiple point sensors designed to provide monitoring of the oil/water interface and to provide accessory control. Brass and stainless steel models are available.
3. Provide pump control systems and pumps:

• Oil interface control system to activate and deactivate explosion-proof waste oil pump.
• Influent pump and control system to activate inlet (positive displacement) pump at pre-determined levels.
• Effluent (waste water) pump control system to activate and deactivate an explosion-proof effluent discharge pump at pre-determined levels in the discharge well (clearwell).

1. Contractor shall test and install tank according to installation instructions.
2. Tanks shall be unloaded from tank using appropriate lift equipment.
3. Tanks shall be installed in accordance with "Petroleum Equipment Institute Publication RP200-92; Recommended Practices for Installation of Aboveground Storage Systems for Motor Vehicle Fueling".

1. Close inlet and outlet valves.
2. Remove cover(s).
3. Drain, pump out separator.
4. Remove coalescer packs for cleaning. In some conditions, coalescer packs may be cleaned in place.
5. Maintenance is recommended for continued separator performance at the following times (whichever comes first):

Copyright © 1999 Containment Solutions, Inc.