All facilities that generate and discharge fats, oils and grease in their sewage flow shall install, operate and maintain a FOG pretreatment system prior to connection to the public sewer.
A. 
FOG pretreatment systems shall be provided for:
(1) 
All food preparation establishments with a Class III or IV food services license, including restaurants, cafeterias, diners and similar nonindustrial facilities using food preparation processes that have the potential to generate FOG in sewage at concentrations in excess of the limits defined in these regulations and is also required to meet the general permit of the C.G.S. § 22a-430b, as amended, prior to connection to the public sewer.
(2) 
New and existing facilities which, in the opinion of the MWPCA, require FOG pretreatment systems for the proper handling of sewage containing fats, oils or grease; except that such FOG pretreatment systems shall not be required for residential units.
(3) 
All sizing requirements for a grease interceptor or other approved device/system are to be sized accordingly by an engineer at the expense of the food establishment. Each unit must be able to handle the anticipated flow and remove grease so as to not violate any part of these regulations.
B. 
All new food preparation establishments which generate and discharge sewage containing fats, oils and grease, and which will require a FOG pretreatment system as determined by the MWPCA, shall include the design and specifications for the FOG pretreatment system as part of the sewer connection permit application. An application for a permit for the FOG interceptor will need to be submitted with payment made to the MWPCA at the current fee payment schedule set by the MWPCA.
C. 
All existing food preparation establishments with a Class III or IV food services license which generate and discharge sewage containing fats, oils and grease and which require a new FOG pretreatment system, that have either changed ownership or started renovations of the interior of the business, shall install said grease interceptor immediately or as determined by the MWPCA.
D. 
Existing food preparation establishments with a Class III or IV food services license which generate and discharge sewage containing fats, oils and grease and which have an existing noncomplying FOG pretreatment system must comply with this FOG regulation prior to connection to the public sewer.
E. 
All costs and related expenses associated with the installation and connection of the FOG interceptor(s) or alternate FOG pretreatment system(s) shall be borne by the food preparation establishment. The food preparation establishment shall indemnify the Town and its agents for any loss or damage that may directly or indirectly occur due to the installation of the FOG pretreatment system.
F. 
An application for the design and installation of a FOG pretreatment system shall be subject to review and approval by the MWPCA per these regulations, the Sanitary Sewer Material and Construction Standards, and subject to the requirements of all other applicable codes, ordinances and laws.
No facility shall discharge or cause to be discharged any sewage with a FOG concentration in excess of the limits described in Article V of these regulations as determined by the most current approved test for total recoverable fats and grease listed in 40 CFR 136.3 or in concentrations or in quantities which will harm either the sewer or water pollution control facility, as determined by the MWPCA.
A. 
Except as provided by § 410-50, the sewage generated from food preparation establishments shall be treated to remove FOG using a FOG interceptor.
B. 
Every structure at the subject facility shall be constructed, operated and maintained in a manner to ensure that the discharge of food preparation sewage is directed solely to the FOG interceptor or alternate FOG pretreatment system. No diverting valve or bypass piping that could prevent the discharge of food preparation sewage from entering appropriate pretreatment equipment shall be present.
C. 
The contact person at each food preparation establishment shall notify the MWPCA when the FOG pretreatment system is ready for inspection and connection to the public sewer. The connection and testing shall be made under the supervision of the MWPCA Inspector and/or the Sanitarian. The Building Official must also inspect any interior connections, and all applicable permits must be issued prior to the start of work.
D. 
All applicable local plumbing/building codes shall be followed during the installation of the FOG pretreatment system.
E. 
FOG interceptor requirements.
(1) 
The FOG interceptor shall be installed on a separate building connection servicing kitchen flows and shall only be connected to those fixtures or drains which can allow fats, oils and grease to be discharged into the public sewer. This shall include:
(a) 
Pot sinks;
(b) 
Prerinse sinks or dishwashers without prerinse sinks;
(c) 
Any sink into which fats, oils or grease may be introduced;
(d) 
Soup kettles or similar devices;
(e) 
Work stations;
(f) 
Floor drains or sinks into which kettles may be drained;
(g) 
Automatic hood wash units;
(h) 
Dishwashers without prerinse sinks; and
(i) 
Any other fixtures or drains that can allow fats, oils and grease to be discharged into the sewer.
(2) 
No pipe carrying any sewage other than from those listed in the paragraph above shall be connected to the FOG interceptor.
(3) 
No food grinder shall discharge to the FOG interceptor/trap.
(4) 
The FOG interceptor shall be located so as to maintain the separating distances from well water supplies set forth in Section 19-13-B51d of the Public Health Code.
(5) 
The following minimum separating distances shall be maintained between the FOG interceptor and the items listed below.
(a) 
Property line: 10 feet.
(b) 
Building served (no footing drains): 15 feet.
(c) 
Groundwater-intercepting drains, footing drains and storm drainage systems: 25 feet.
(d) 
Open watercourse: 50 feet.
(6) 
All nonconcrete grease traps must be approved for use by the MWPCA.
(7) 
The FOG interceptor/trap shall be accessible for convenient inspection and maintenance. No structures shall be placed directly upon or over the FOG interceptor.
(8) 
When necessary due to installation concerns, testing for leakage will be performed using either a vacuum test or water-pressure test.
(a) 
Vacuum test. Seal the empty tank and apply a vacuum to two inches of mercury. The tank is approved if 90% of the vacuum is held for two minutes.
(b) 
Water-pressure test. Seal the tank, fill with water, and let stand for 24 hours. Refill the tank. The tank is approved if the water level is held for one hour.
A. 
When it is not practical for the food preparation establishment to install an outdoor in-ground FOG interceptor per § 410-49, an alternate FOG pretreatment system such as an AGRU (automatic grease recovery unit) may be utilized upon approval by the MWPCA and upon receiving a "notification of approved alternative FOG pretreatment system." Approval of the system shall be based on demonstrated (proven) removal efficiencies and reliability of operation. The MWPCA will approve these systems on a case-by-case basis. The contact person may be required to furnish the manufacturer's analytical data demonstrating that FOG discharge concentrations do not exceed the limits established in these regulations. Installation of the above-mentioned device/system will require a permit by the MWPCA along with the required fee, and inspection of device/system will be required from both the MWPCA Inspector and the Building Official.
B. 
Alternate FOG pretreatment systems shall consist of a FOG recovery unit meeting the requirements of Subsection D, unless there are special circumstances that preclude such installation, as approved by the MWPCA.
C. 
Alternate FOG pretreatment systems shall meet the requirements of § 410-49A through D and E(2) and (3) and shall be installed immediately downstream of each of the fixtures and drains listed in § 410-49E(1).
D. 
Alternate FOG pretreatment system requirements.
(1) 
FOG AGRUs shall be sized to properly pretreat the measured or calculated flows using methods approved by the MWPCA.
(2) 
FOG AGRUs shall be constructed of corrosion-resistant material such as stainless steel or plastic.
(3) 
Solids shall be intercepted and separated from the effluent flow using a strainer mechanism that is integral to the unit.
(4) 
FOG AGRUs shall operate using a skimming device, automatic drawoff, or other mechanical means to automatically remove separated FOG. This skimming device shall be controlled using a timer, FOG sensor or other means of automatic operation. FOG recovery units operated by timer shall be set to operate no less than once per day.
(5) 
FOG AGRUs shall be included with an internal or external flow-control device.
(6) 
FOG AGRUs shall be located to permit frequent access for maintenance and inspection.
A. 
The FOG pretreatment system shall be maintained continuously in satisfactory and effective operation at the food preparation establishment's expense.
B. 
The contact person shall be responsible for the proper removal and disposal, by appropriate means, of the collected material removed from the FOG pretreatment system.
C. 
A record of all FOG pretreatment system maintenance activities shall be maintained on the premises in a maintenance log for a minimum of five years.
D. 
The contact person shall ensure that the FOG interceptor is inspected when pumped to ensure that all fittings and fixtures inside the interceptor are in good condition and functioning properly. The depth of grease inside the tank shall be measured and recorded in the maintenance log during every inspection along with any deficiencies and the identity of the inspector.
E. 
The contact person shall determine the frequency at which its FOG interceptor(s) shall be pumped according to the following criteria:
(1) 
The FOG interceptor shall be completely cleaned by a licensed waste hauler when 25% of the operating depth of the FOG interceptor is occupied by grease and settled solids or a minimum of once every three months, whichever is more frequent.
(2) 
If the contact person can provide data demonstrating that less frequent cleaning of the FOG interceptor will not result in a grease level in excess of 25% of the operating depth of the FOG interceptor, the MWPCA may allow less frequent cleaning. The contact person shall provide data, including pumping receipts for four consecutive cleanings of the FOG interceptor, complete with a report from the FOG hauler, indicating the grease level at each cleaning, and the FOG interceptor or maintenance log.
(3) 
A maintenance log shall be maintained on the premises and shall include the following information: dates of all activities, volume pumped, grease depth, hauler's name, location of the waste disposal, means of disposal for all material removed from the FOG interceptor, and the name of the individual recording the information. The maintenance log and waste hauler's receipts shall be made available to the MWPCA for inspection on demand. Interceptor cleaning and inspection records shall be maintained on file a minimum of five years.
F. 
All removal and hauling of the collected materials must be performed by state-licensed waste hauler. Pumped material shall be disposed of at a regional FOG disposal facility. Pumping shall include the complete removal of all contents, including floating materials, sewage and settled sludge. Decanting back into the FOG interceptor shall not be permitted. FOG interceptor cleaning shall include scraping excessive solids from the walls, floors, baffles and all piping.
A. 
The contact person shall make every practical effort to reduce the amount of FOG contributed to the sewage system.
B. 
Renderable fats, oils and grease shall not be discharged into any building connector or FOG interceptor. All renderable fats, oils and grease shall be stored in a separate, covered, leakproof, renderable FOG container; stored out of reach of vermin; and collected by a renderer.
C. 
Small quantities of FOG scraped or removed from pots, pans, dishes and utensils shall be directed to the municipal solid waste stream for disposal.
A. 
Technical standards as defined in the Sanitary Sewer Material and Construction Standards shall apply when, in the opinion of the MWPCA, excessive grease, oil or gross particles exist for a particular connection as defined by § 410-37B.
B. 
The MWPCA shall have the right to inspect such facilities at any time during normal business hours.
C. 
A grease trap log shall be furnished to the MWPCA, which shall state the proper cleaning intervals for any FOG device/system. The log shall be updated at every cleaning and be available for viewing by WPCA personnel at all times. Failure to maintain grease logs will result in monetary penalties.
D. 
All fryolator grease must be stored in a proper covered container until removal by a renderer and not discharged to the public sewer. Violators may be subject to a monetary penalty. Grease trap waste may, in most cases, be disposed of by the renderer or the normal trash contractor.
E. 
All sinks not draining through a FOG device/system must be posted as follows: NO CLEANING OF POTS, PANS, DISHES OR UTENSILS and NO FATS, OILS OR GREASE.
F. 
No chemicals, emulsifiers or grease cutters other than bacteria shall be used in the maintenance of grease traps or building drains in the public sewer.