A. Installations:
1. New Facilities. Food processing or food service facilities which are newly proposed or constructed, or existing facilities which will be expanded or renovated to include a food service facility, where such facility did not previously exist, shall be required to design, install, operate and maintain a grease interceptor in accordance with locally adopted plumbing codes or other applicable ordinances. Grease interceptors shall be installed and inspected prior to issuance of a certificate of occupancy.
2. Existing Facilities. Existing grease interceptors must be operated and maintained in accordance with the manufacturer's recommendations and in accordance with this chapter, unless specified in writing and approved by the VSS. Existing facilities that are not in compliance with the terms of this chapter will have one hundred and twenty (120) days from the date of ordinance adoption to comply.
3. All grease interceptor waste shall be properly disposed of at a facility in accordance with federal, state, or local regulation.
B. Cleaning and Maintenance:
1. Grease interceptors shall be maintained in an efficient operating condition at all times.
2. Each grease interceptor when cleaned shall be fully evacuated.
C. Cleaning Schedules:
1. Grease interceptors shall be cleaned as often as necessary to ensure that sediment and floating materials do not accumulate to impair the efficiency of the grease interceptor; to ensure the discharge is in compliance with local discharge limits; and to ensure no visible grease is observed in discharge.
2. Grease interceptors shall be completely evacuated a minimum of every thirty (30) days, or more frequently when:
a. Twenty-five (25) percent or more of the wetted height of the grease trap or grease interceptor, as measured from the bottom of the device to the invert of the outlet pipe, contains floating materials, sediment, oils or greases;
b. The discharge exceeds BOD, COD, TSS, FOG, pH, or other pollutant levels established by the VSS; or
c. If there is a history of non-compliance.
3. Any person who owns or operates a grease interceptor may submit to the VSS a request in writing for an exception to the thirty (30) day cleaning frequency of their grease interceptor. The VSS may grant an extension for required cleaning frequency on a case-by-case basis when:
a. The grease interceptor owner/operator has demonstrated the specific interceptor will produce an effluent, based on defensible analytical results, in consistent compliance with established local discharge limits such as BOD, TSS, FOG, or other parameters as determined by the VSS; or
b. Less than twenty-five percent (25%) of the wetted height of the grease interceptor, as measured from the bottom of the device to the invert of the outlet pipe, contains floating materials, sediment, oils or greases.
4. In any event, a grease interceptor shall be fully evacuated, cleaned, and inspected at least once every ninety (90) days
D. Manifest Requirements:
1. Each pump-out of a grease interceptor must be accompanied by a manifest to be used for record keeping purposes.
2. Persons who generate, collect and transport grease waste shall maintain a record of each individual collection and deposit. Such records shall be in the form of a manifest. The manifest shall include:
a. Name, address, telephone, and commission registration number of transporter;
b. Name, signature, address, and phone number of the person who generated the waste and the date collected;
c. Type and amount(s) of waste collected or transported;
d. Name and signature(s) of responsible person(s) collecting, transporting, and depositing the waste;
e. Date and place where the waste was deposited;
f. Identification (permit or site registration number, location, and operator) of the facility where the waste was deposited;
g. Name and signature of facility on-site representative acknowledging receipt of the waste and the amount of waste received;
h. The volume of the grease waste received; and
i. A consecutive numerical tracking number to assist transporters, waste generators, and regulating authorities in tracking the volume of grease transported.
3. Manifests shall be divided into five parts and records shall be maintained as follows:
a. One part of the manifest shall have the generator and transporter information completed and be given to the generator at the time of waste pickup.
b. The remaining four parts of the manifest shall have all required information completely filled out and signed by the appropriate party before distribution of the manifest.
c. One part of the manifest shall go to the receiving facility.
d. One part shall go to the transporter, who shall retain a copy of all manifests showing the collection and disposition of waste.
e. One copy of the manifest shall be returned by the transporter to the person who generated the wastes within 15 days after the waste is received at the disposal or processing facility.
f. One part of the manifest shall go to the local authority.
g. Copies of manifests returned to the waste generator shall be retained for five (5) years and be readily available for review by the VSS.
h. Alternative treatment.
E. Compliance and Penalties: All testing designed to satisfy the criteria set forth in 4-8-2b shall be scientifically sound and statistically valid. All tests to determine oil and grease, TSS, BOD, COD, pH, and other pollutant levels shall use appropriate tests which have been approved by the Environmental Protection Agency which are defined in Title 40, Code of Federal Regulations, Part 136. Testing shall be open to inspection by the VSS, and shall meet the VSS’s approval.
F. Prohibited Practices: No person shall introduce, or cause, permit, or suffer the introduction of any surfactant, solvent or emulsifier into a grease interceptor. Surfactants, solvents, and emulsifiers are materials which allow the grease to pass from the grease interceptor into the collection system, and include but are not limited to enzymes, soap, diesel, kerosene, terpene, and other solvents.
G. Compliance Monitoring:
1. Right of Entry. The VSS shall have the right to enter the premises of any user or potential user to determine whether the user is complying with all requirements of this chapter and any wastewater discharge permit or order issued hereunder. Users shall allow the VSS ready access to all parts of the premises for the purposes of inspection, sampling, records examination and copying, and the performance of any additional duties.
a. The VSS shall have the right to set up on the user's property, or require installation of, such devices as are necessary to conduct sampling and/or metering of the user's operations.
b. The VSS may require the user to install monitoring equipment as necessary such as FOG sensing and alarm devices complying with Plumbing and Draining Institute Standard (PDI) G-102. The facility's monitoring equipment shall be maintained at all times in a safe and proper operating condition by the user at its own expense.
c. Any temporary or permanent obstruction to safe and easy access to the facility to be inspected and/or sampled shall be promptly removed by the user at the written or verbal request of the VSS and shall not be replaced. The costs of clearing such access shall be borne by the user.
d. Unreasonable delays in allowing the VSS access to the user's premises shall be a violation of this chapter. (Ord. 2020-1245, 8-13-2020)