grease trap requirements

Detailed drawing of interceptor and piping, Number and type of fixtures proposed to be attached. The grease interceptor (GI) must be constructed in accordance with the current plumbing codes adopted by the City of Austin, as amended, and installed in a manner acceptable to the Development Services Division (no exceptions); The GI shall have two compartments. Purchasing an interceptor prior to IW approval exposes the purchaser to risk of rejection and replacement costs. Refer to manufacturers cleaning procedure as cleaning methods may vary with type of unit. 454 0 obj <>stream 441 0 obj <>/Filter/FlateDecode/ID[<2699F7281AEA5C4E9D5F13A8D243EA86><15504ED7A2B8C8499534A37D03AF58DB>]/Index[425 30]/Info 424 0 R/Length 92/Prev 293128/Root 426 0 R/Size 455/Type/XRef/W[1 3 1]>>stream Conceptual drawing of a City of Austin approvedgravity grease interceptordesign. In such cases, engineering drawings and supporting performance data must be submitted to and approved by the Director prior to GI installation. Extremely large volume GIs may have three compartments; While operating at the GI's rated flow capacity, the first compartment must provide a retention time of no less than seven minutes, and the second compartment must provide a retention time of no less than five minutes (~60/40 split); GI inverts and vents shall be external to the compartments. As per LFUCG ordinance requirements, grease interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperatures, shall be of substantial construction, watertight and equipped with easily removable covers. Examples of such features would include a flow diverter plate in the primary compartment, "tee" piping between the two GI compartments and "tee" piping on the tank outlet; Be constructed of concrete or non-corrodible materials; Each GI compartment shall be accessible for cleaning and inspection purposes (no exceptions). Must comply with American Society of Civil Engineers (ASME) A112.14.3 standard; Must be flow-rated at 75-gallons per minute (GPM) or higher; Must be constructed of non-corrodiblematerials; Must be installed per ASME A112.14.3 Type D standard (indirect connection without external flow control); Must have a minimum liquid capacity consistent with the IW approval letter specified minimum; and. The necessary frequency of cleaning will vary greatly depending on the nature of the establishment. This is to ensure that the interceptor meets sizing requirements andconstruction standards, and conforms to plumbing codes. Maintenance and cleaning events must be recorded in written form and kept on file on site. %PDF-1.5 % E.g. 0000003722 00000 n Remember not to include sensitive personal information. All grease interceptors must be approved by the LFUCG Division of Water Quality prior to installation. Maintenance: HGIs greater than 500 gallons must have a 60/40 split between compartments. 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Use the Step by Step tool to get an exhaustive list of requirements that matter to you. HW]o}HY-HlI{}`$,~Hw?3g64C?~r6O^Cy 0hpRTHfJI>8Vr18_,b998&&Gv0F?|r5_ Gc~Hbp5&Gv]hm. These services typically will empty the entire contents with a pumper truck and haul the grease and sludge to an approved disposal site. Interceptors located in roadways or parking lots should be traffic rated. City of New York. 0000006050 00000 n

Shall include a60/40 split between compartments to allow for adequate retention time, similar to a GGI; Shall beconstructed of non-corrodible materials; May have either internal or external inverts. 0000068670 00000 n 0000006129 00000 n To properly clean a grease interceptor, the entire contents (liquids and solids) must be pumped out. 2022 %%EOF Please see below for the updated requirements. Austin Waters Office of Industrial Waste (IW) modified its grease interceptor policies in April 2021. The City has tried to provide you with correct information on this website. The records shall be made available to LFUCG Division of Water Quality inspectors upon request. After approval, the facility will be issued a grease interceptor permit and the grease interceptor can be installed. 0000002408 00000 n Leaving accumulated solids in the bottom of grease interceptors can lead to short circuiting and reduced retention times, as well as, very unpleasant odors. Senior programs, aging services, community centers, Global Lex, Family Care Center, sister cities andinformation for families withchildren, Mayor's office, city departments, councilmembers, council meetings, dispute resolutionand boards/commissions, Includestraffic, LEXserv, trash, recycling, environmental information,parkingand transportation, City contracts, RFPs, bids and job opportunities with the city governmentand related agencies, Includes applications for starting a business, tax forms, building and zoning permits, Neighborhood associations, grants, housing assistance and housingissues, Includes police, fire, animal control, community corrections,crime, security and emergency preparedness, Parks, events,programs, tourismand activities. We'll only use this to reply to your message. Receipts or manifests from private pumping septic and grease haulers should indicate destination of hauled waste, i.e. 425 0 obj <> endobj

Record keeping: (Adobe PDF). For engineered GGIs, specific models shall meet the following requirements: The goal for engineered GGIs is to closely comply to the concrete GGI requirements but allow slight flexibility if site conditions are not ideal for a concrete GGI. hbbd```b``f+A$S9d@$&T.@$WX X: "^ IA v8l>#E 3 0000006027 00000 n 0000003763 00000 n Disposal location, Example: Grease recycle bin, Town Branch WWTP, etc. 0000001248 00000 n Every business or establishment that produces and disposes of fat, oil or grease (FOGs), such as restaurants, food processing establishments, hospitals, and day care and senior centers, must have a grease interceptor system to prevent the discharge of waste grease into the City's sewer systems. A list of localseptic/grease haulersis available on our website. Design requirements: The approved design for GGIs shall be as follows: Exceptions to the above criteria may be considered for approval in conjunction with the Building Plan Review process. The GI flowline (upstream of inlet invert) must be at least 3 inches above the tanks static water level; The GI vent must be at least 3 inches above the static water level of the tank; The GI inlet must be near an elevation that is one half of the tank's static water level height, and the GI outlet must be at least 12 inches above the tank floor; Adequate flow diffusion features must be provided to evenly distribute flow throughout the GI. Many of the techniques found in the Best Management Practicessection of this manual should be helpful in the reduction of grease discharges, and thus reduced the frequency of grease interceptors cleanings. 0000001832 00000 n Maintenance records shall contain the following information: If you'd like us to get back with you, please leave your details below. hb```,@(q')D~ RI+0 s|$K2vt0p40 HyX |s63ETUksU)3iF H$, Hi1(c0 / The following information must be submitted to Division of Water Quality, Compliance and Monitoring section,to obtain approval and be issued a grease interceptor permit. Solve this simple math problem and enter the result. Hydromechanical Grease Interceptors (HGI). Smaller under counter grease interceptors can be cleaned by in-house staff. While every effort has been made to ensure that the information provided is accurate and up-to-date, errors are still possible. Managers signature or initials for verification. 0000006336 00000 n document.write(new Date().getFullYear()); All Rights Reserved, NYC is a trademark and service mark of the City of New York. 804 0 obj << /Linearized 1 /O 807 /H [ 1248 606 ] /L 541485 /E 71684 /N 25 /T 525286 >> endobj xref 804 19 0000000016 00000 n Facilities with high grease loadings may have to clean their interceptors as often as monthly. 0000002907 00000 n However, these requirements also allow larger HGI models if site conditions are not ideal for a Gravity Grease Interceptor. NYC Department of Small Business Services. 0000001087 00000 n The information provided is not legal advice. 0000001854 00000 n endstream endobj startxref Town Branch WWTP, Lexington KY. The Division of Water Quality requires that cleaning events be recorded and kept on file.

The Division ofWater Qualitywill inspect the grease interceptor after installation is complete. HOWEVER, DO NOT PURCHASE ANY GREASE TRAP WITHOUT FIRST VERIFYING WITH OUR OFFICE THAT THE SPECIFIC MODEL WILL BE APPROVED FOR INSTALLATION! endstream endobj 426 0 obj <. Grease interceptors should be cleaned on a regular basis to ensure efficient operation. Do not purchase a grease interceptor without obtaining a building plan approval includingan Industrial Waste approval letterspecifying the size and design of the interceptor that will be required. You may need additional information to meet the legal requirements for starting or operating your business. Conceptual drawing of a City of Austin approvedgravity grease interceptordesign, View contact information for grease trap manufacturers. 0 trailer << /Size 823 /Info 798 0 R /Root 805 0 R /Prev 525275 /ID[<0b6c3eb84f0ac56d68b8bf009cda36f1>] >> startxref 0 %%EOF 805 0 obj << /Type /Catalog /Pages 801 0 R /Metadata 799 0 R /Outlines 134 0 R /OpenAction [ 807 0 R /XYZ null null null ] /PageMode /UseNone /PageLabels 797 0 R /StructTreeRoot 806 0 R /PieceInfo << /MarkedPDF << /LastModified (D:20020611123259)>> >> /LastModified (D:20020611123259) /MarkInfo << /Marked true /LetterspaceFlags 0 >> >> endobj 806 0 obj << /Type /StructTreeRoot /ClassMap 164 0 R /RoleMap 163 0 R /K [ 631 0 R 632 0 R 633 0 R ] /ParentTree 727 0 R /ParentTreeNextKey 25 >> endobj 821 0 obj << /S 527 /O 605 /L 621 /C 637 /Filter /FlateDecode /Length 822 0 R >> stream Hydromechanical grease interceptors shall meet the following requirements: Generally, HGIs are ideal for low FOG-producing establishments such as small sandwich shops, coffee shops, and bakeries that use disposable flatware and do not utilize an automatic dishwasher, due to the HGIs compact size. Hb```f``yzAXCDL4 27W06xaSUs3~=3a+ Factors such as types of food, cooking methods, cleaning techniques, carry-out verses dine-in, all will determine volume of grease discharged. The Division of Water Quality requires that external grease interceptors be cleaned no less than once every six months. Facilities with under-sized internal grease interceptors are required to clean at least weeklyor possibly even daily. 0000003131 00000 n View contact information for grease trap manufacturers (Adobe PDF) that are familiar with these criteria. 0000002178 00000 n The interceptor shall contain a baffle system, which adequately diverts and slows the flow to avoid short-circuiting. Maintenance of external large capacity grease interceptors should be performed by qualified grease or septic haulers. QnzukOG@RM@'UtM%7f4fE,Q5o Bd4TW'L9R'tUor` 8L!K+qwI&NIfQXdfsMlz,GM 1@GS7LE ]-Y7L&F vHJ\%*; i iBXe1`Y! Lexington-Fayette Urban County Government. A copy of the FOG Permit issued by the Division ofWater Qualityshall be kept on file at the facility the permit has been issued to. Thank you for helping us to improve lexingtonky.gov! %PDF-1.3 % 0000033628 00000 n 0000000731 00000 n

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